From 50e1353e23ba38c2495bac42c90ddcbbed52321e Mon Sep 17 00:00:00 2001 From: Vladimir Protsenko Date: Sun, 12 Nov 2023 22:43:41 +0000 Subject: [PATCH 1/4] Updated postfix_dovecot lection draft --- module2/04_postfix_dovecot/lection.md | 251 +++++++++++++++++++++----- 1 file changed, 210 insertions(+), 41 deletions(-) diff --git a/module2/04_postfix_dovecot/lection.md b/module2/04_postfix_dovecot/lection.md index f9b734c..3b5dbb8 100644 --- a/module2/04_postfix_dovecot/lection.md +++ b/module2/04_postfix_dovecot/lection.md @@ -1,11 +1,28 @@ -Какое нам дело до классов адресов? Классы адресов опеределяют то, как Postfix принимает решения какие письма принимать и куда их доставлять. Класс адреса определяется тремя вещами: +# Почтовая система Postfix + Dovecot + +Возможные структуры почтовой системы: +1. Postfix, Dovecot имеют доступ к списку пользователей и работают параллельно, разделяя доступ к почтовым ящикам пользователей. +2. Dovecot является «бэкендом» для доступа к почтовым ящикам пользователей. При этом подходе, расположение почтовых ящиков, список пользователей, известен только Dovecot. + +Далее будет рассмотрен первый вариант. Но в начале следует углубиться в теорию для понимания механизмов работы Postfix. Рассмотрим что такое классы адресов и какие бывают типы доменов. Затем рассмотрим классы адресов с точки зрения менеджмента почтовых ящиков. В конце разберёмся какие проблемы есть у почтовых серверов из-за спама, и как повысить надежность доставки писем вашим почтовым сервером. + +## Какое нам дело до классов адресов? + +Классы адресов опеределяют то, как Postfix принимает решения какие письма принимать и куда их доставлять. Класс адреса определяется тремя вещами: - список доменов, - список действительных адресов получателей, - транспорт доставки по умолчанию. -Можно считать, что класс адресов - это правило, применяемое к полю `Кому:` конверта элекронного письма. Правило имеет вид: +По умолчанию определёны следующие классы: +1. local domain class (локальные почтовые ящики), +2. virtual mailbox domain class (виртуальные почтовые ящики), +3. virtual alias domain class (виртуальные псевдонимы), +4. relay domain class (адреса транзитных smtp серверов), +5. default domain class (адреса по умолчанию). + +Можно считать, что класс - это правило, применяемое к полю `Кому:` конверта элекронного письма. Правило имеет вид: ``` -user@domain -> agent(user, domain), +user@domain -> agent(email), ``` которое применяется, если истинно, что: ``` @@ -14,24 +31,15 @@ domain ∈ DOMAINS, agent ∈ AGENTS. ``` -По умолчанию определён следующий список классов адресов: -- local domain class (локальные почтовые ящики), -- virtual mailbox domain class (виртуальные почтовые ящики), -- virtual alias domain class (виртуальные псевдонимы), -- relay domain class (адреса транзитных smtp серверов), -- default domain class (адреса по умолчанию). - -Для локальных (local domain class) и виртуальных (virtual mailbox class) почтовых ящиков пустое множество в `USER = {}` означает, что проверка пользователей отключена, то есть подходит любое имя пользователя. - -Для разрешения псевдонимов в адреса в классе virtual alias domain class (виртуальные псевдонимы) агент не используется `AGENTS = {}`. +Особенности. Для локальных (local domain class) и виртуальных (virtual mailbox class) почтовых ящиков пустое множество в `USER = {}` означает, что проверка пользователей отключена, то есть подходит любое имя пользователя. Для разрешения псевдонимов в адреса в классе virtual alias domain class (виртуальные псевдонимы) агент не используется `AGENTS = {}`. ### 1. local domain class (`domain ∈ mydestination ∪ inet_interfaces ∪ proxy_interfaces`) -Доставка последней мили до почтовых ящиков пользователей в `canonical` доменах, имеющих аккаунты в UNIX системе. Имена `user` определяются параметром `local_recipient_maps`. По умолчанию заничение равно `proxy:unix:passwd.byname $alias_maps`, то есть `/etc/passwd` и `/etc/aliases`. +Адрес попадает в данный класс, если его домен или его ip адрес совпадает с одним из `mydestination`, `inet_interfaces` или `proxy_interfaces`. -Адрес получателя локальный, если его домен совпадает с `mydestination`, `inet_interfaces` или `proxy_interfaces`. +Класс предназначен для доставки писем до почтовых ящиков пользователей имеющих аккаунты в UNIX системе. Имена `user` определяются параметром `local_recipient_maps`. По умолчанию это `/etc/passwd` и `/etc/aliases`. ``` -agent = local из local_transport +agent = local USERS = /etc/passwd ∪ /etc/aliases DOMAINS = mydestination ∪ inet_interfaces ∪ proxy_interfaces AGENTS = service names ∈ /etc/postfix/master.cf @@ -39,23 +47,23 @@ AGENTS = service names ∈ /etc/postfix/master.cf ### 2. virtual mailbox domain class (`domain ∈ virtual_mailbox_domains`) -Доставка последней мили до почтовых ящиков пользователей в `hosted` доменах, чьи пользователи не имеют аккаунтов в UNIX системе. Адреса почтовых ящиков вида `user@domain` ищутся в одной или нескольких таблицах указанных в параметре `virtual_mailbox_maps`. +Адреса почтовых ящиков вида `user@domain` ищутся в одной или нескольких таблицах указанных в параметре `virtual_mailbox_maps`. Доставка до почтовых ящиков пользователей в доменах, чьи пользователи не имеют аккаунтов в UNIX системе. ``` -agent = virtual из virtual_transport +agent = virtual USERS = virtual_mailbox_maps DOMAINS = virtual_mailbox_domains AGENTS = service names ∈ /etc/postfix/master.cf ``` ### 3. virtual alias domain class (виртуальные псевдонимы) -* Назначение: хостинговые домены, в которых каждый адрес получателя псевдонимом привязан к учётной записи локальной UNIX-системы или к удаленному адресу. Пример виртуального псевдонима приведен в файле VIRTUAL_README. +Назначение: хостинговые домены, в которых каждый адрес получателя псевдонимом привязан к учётной записи локальной UNIX-системы или к удаленному адресу. Пример виртуального псевдонима приведен в файле VIRTUAL_README. -* Доменные имена перечисляются в virtual_alias_domains. Для совместимости с Postfix 1.1 по умолчанию используется значение $virtual_alias_maps. +Доменные имена перечисляются в virtual_alias_domains. Для совместимости с Postfix 1.1 по умолчанию используется значение $virtual_alias_maps. -* Действительные адреса получателей перечисляются в параметре virtual_alias_maps. SMTP-сервер Postfix отклоняет недействительных получателей с сообщением "Пользователь неизвестен в таблице виртуальных псевдонимов". Для совместимости с Postfix 1.1 по умолчанию используется значение $virtual_maps. +Действительные адреса получателей перечисляются в параметре virtual_alias_maps. SMTP-сервер Postfix отклоняет недействительных получателей с сообщением "Пользователь неизвестен в таблице виртуальных псевдонимов". Для совместимости с Postfix 1.1 по умолчанию используется значение $virtual_maps. -* Транспортный параметр доставки почты отсутствует. Каждый адрес должен быть псевдонимом для какого-либо другого адреса. +Транспортный параметр доставки почты отсутствует. Каждый адрес должен быть псевдонимом для какого-либо другого адреса. ``` agent = @@ -64,17 +72,17 @@ DOMAINS = virtual_alias_domains AGENTS = {} ``` -### 4. relay domain class (адреса транзитных smtp серверов) -* Назначение: переадресация почты на удаленные адреса, в которых ваша система указана в качестве основного или резервного MX-хоста. Для обсуждения основных деталей конфигурации см. документ BASIC_CONFIGURATION_README. Обсуждение различий между каноническими доменами, размещенными доменами и другими доменами см. в файле VIRTUAL_README. +### 4. relay domain class (адреса доменов-ретранляторов) +Назначение: переадресация почты на удаленные адреса, в которых ваша система указана в качестве основного или резервного MX-хоста. Для обсуждения основных деталей конфигурации см. документ BASIC_CONFIGURATION_README. Обсуждение различий между каноническими доменами, размещенными доменами и другими доменами см. в файле VIRTUAL_README. -* Доменные имена перечисляются с помощью параметра relay_domains. +Доменные имена перечисляются с помощью параметра relay_domains. -* Действительные адреса получателей перечисляются с помощью параметра relay_recipient_maps. SMTP-сервер Postfix отклоняет недействительных получателей с сообщением "User unknown in relay recipient table". Если значение этого параметра пустое, то SMTP-сервер Postfix принимает всех получателей для доменов, перечисленных в параметре relay_domains. +Действительные адреса получателей перечисляются с помощью параметра relay_recipient_maps. SMTP-сервер Postfix отклоняет недействительных получателей с сообщением "User unknown in relay recipient table". Если значение этого параметра пустое, то SMTP-сервер Postfix принимает всех получателей для доменов, перечисленных в параметре relay_domains. -* Транспорт доставки почты задается параметром relay_transport. По умолчанию используется значение relay, которое является клоном агента доставки smtp(8). +Транспорт доставки почты задается параметром relay_transport. По умолчанию используется значение relay, которое является клоном агента доставки smtp(8). ``` -agent = relay из relay_transport +agent = relay USERS = relay_recipient_maps DOMAINS = relay_domains AGENTS = service names ∈ /etc/postfix/master.cf @@ -82,22 +90,184 @@ AGENTS = service names ∈ /etc/postfix/master.cf ### 5. default domain class (адреса по умолчанию) -* Назначение: пересылка почты в Интернет от имени авторизованных клиентов. Для обсуждения основных деталей конфигурации см. файл BASIC_CONFIGURATION_README. О различиях между каноническими доменами, размещенными доменами и другими доменами см. файл VIRTUAL_README. - -* У этого класса нет таблицы доменов назначения. +Назначение: пересылка почты в Интернет от имени авторизованных клиентов. Для обсуждения основных деталей конфигурации см. файл BASIC_CONFIGURATION_README. О различиях между каноническими доменами, размещенными доменами и другими доменами см. файл VIRTUAL_README. -* Этот класс не имеет таблицы действительных адресов получателей. +У этого класса нет таблицы доменов назначения. -* Транспорт доставки почты задается параметром default_transport. По умолчанию используется значение smtp для доставки с помощью агента доставки smtp(8). +Этот класс не имеет таблицы действительных адресов получателей. +Транспорт доставки почты задается параметром default_transport. По умолчанию используется значение smtp для доставки с помощью агента доставки smtp(8). ``` -agent = smtp из default_transport -USERS = relay_recipient_maps -DOMAINS = relay_domains +agent = smtp +USERS = {} +DOMAINS = {} AGENTS = service names ∈ /etc/postfix/master.cf ``` -Анекдот про выбор протокола шифрования в STARTTLS: +## Типы доменов + +Большинство систем Postfix являются конечным пунктом назначения только для нескольких доменных имен. К ним относятся имена хостов и [IP-адреса] машин, на которых работает Postfix, а иногда и родительский домен имени хоста. Эти домены называются каноническими ( `canonical` ) доменами. Обычно они реализуются с помощью класса адресов локального домена Postfix, как определено в файле ADDRESS_CLASS_README. + +Помимо канонических доменов, Postfix может быть настроен на то, чтобы быть конечным адресатом для любого количества дополнительных доменов. Такие домены называются размещенными ( `hosted` ), поскольку они не связаны непосредственно с именем самой машины. Размещенные домены обычно реализуются с помощью класса виртуального псевдонима домена и/или виртуального домена почтовых ящиков. + +Но подождите! Это еще не все. Postfix может быть настроен как резервный MX-хост для других доменов. В этом случае Postfix не будет являться резервным хостом MX для этих доменов. Он просто ставит почту в очередь, когда основной MX-хост работает, и пересылает почту, когда основной MX-хост не работает. Эта функция реализуется с помощью класса адресов доменов-ретрансляторов, как определено в файле ADDRESS_CLASS_README. + +Наконец, Postfix может быть настроен как транзитный хост для отправки почты через Интернет. Очевидно, что Postfix не является конечным адресатом такой почты. Эта функция доступна только для авторизованных клиентов и/или пользователей и реализуется классом доменных адресов по умолчанию, как определено в параметре ADDRESS_CLASS_README. + +**Таблица. 1 Сводная таблица классов почтовых адресов** +|| 1. Локальные почтовые ящики | 2. Виртуальные почтовые ящики | 3. Виртуальные псевдонимы | 4. Адреса доменов-ретранляторов | 5. Класс доменных адресов по умолчанию | +|-|-|-|-|-|-| +|agent|local|virtual|доставляются после отображения адресов в 1 или 2|relay|smtp| +|USERS|/etc/passwd, /etc/aliases|virtual_mailbox_maps|virtual_alias_maps|relay_recipient_maps|-| +|DOMAINS|mydestination, inet_interfaces, proxy_interfaces|virtual_mailbox_domains|virtual_alias_domains|relay_domains|-| +|AGENTS|/etc/postfix/master.cf|/etc/postfix/master.cf|/etc/postfix/master.cf|/etc/postfix/master.cf|/etc/postfix/master.cf| + + +# Первая настройка + +Первые параметры, представляющие интерес, определяют идентификацию и роль машины в сети. Заполним таблицу: + +**Таблица 2. Список вопросов перед настройкой почтового сервера** + +|Вопрос|Ответ|Параметр| +|-|-|-| +| Какое доменное имя у машины с Postfix | stud12.myoffice.ru | myhostname | +| Какой домен является родительским | myoffice.ru | mydomain | +| Какие адреса принадлежат доверенной сети от клиентов в которой будут пересылаться письма другим почтовым серверам | 127.0.0.0/8 | mynetworks | +| Какое доменное имя использовать в исходящей почте | stud12.myoffice.ru или myoffice.ru | myorigin = myhostname или mydomain | +| Для каких доменов принимать почту и доставлять локально | stud12.myoffice.ru или myoffice.ru | mydestination = $myhostname localhost.$mydomain localhost | +| С каких клиентов передавать почту | | | +| В какие пункты назначения передавать почту | | | +| Какой метод доставки: прямой или непрямой | прямой | relay or proxy not used? | + +Параметр `mydomain` задает родительский домен `myhostname`. По умолчанию он получается из `myhostname` путем удаления первой части (за исключением случаев, когда в результате не будет получен домен верхнего уровня ). И наоборот, если вы укажете `mydomain` в файле `main.cf`, то Postfix будет использовать его значение для генерации полностью определенного значения по умолчанию для параметра `myhostname`. + +**Таблица 3. Пример вычисления значений `myhostname`, `mydomain`** +|myhostname||mydomain| +|-|-|-| +| www.stud12.myoffice.space | -> | ? | +| stud12.myoffice.space | -> | myoffice.space | +| myoffice.space | -> | myoffice.space | +| localhost.myoffice.space | <- | myoffice.space | + +Рекомендуется сопоставить `myhostname` с тем, что есть в PTR-записи, и проверить, что PTR имеет соответствующую A-запись. + +Параметр `myorigin` задает домен, который отображается в почте, размещенной на этой машине. По умолчанию используется имя локальной машины, `myhostname`, которое по умолчанию равно имени машины. Если только вы не используете действительно небольшой сайт, то, вероятно, следует изменить его на `mydomain`, которое по умолчанию соответствует родительскому домену имени машины. + +Параметр `mydestination` определяет, на какие домены эта машина будет доставлять локально, а не пересылать на другую машину. По умолчанию принимается почта для самой машины. О том, как настроить Postfix для размещенных доменов, см. файл VIRTUAL_README. (Правда в конфигурационном файле `main.cf.proto` есть комментарий: "Вы ДОЛЖНЫ указать $myhostname в начале текста. Это требование 581 RFC. Самому Postfix безразлично.") + + +## Пример эволюции конфигурации Postfix - от простого к сложному. + +### Несколько доменов в mydestiantion + +У вас есть почтовый сервер обслуживающий один домен `myoffice.ru`. Стоит ли заводить ещё один почтовый сервер, если количество доменов увеличилось (появился `myoffice.space`)? Совсем не обязательно. + +Самый простой способ размещения дополнительного домена - это добавить имя домена к доменам, перечисленным в конфигурационном параметре Postfix `mydestination`, и добавить имена пользователей в файл паролей UNIX `/etc/passwd`. При таком подходе не делается различий между каноническими ( `canonical` ) и размещенными ( `hosted` ) доменами. Каждое имя пользователя может получать почту в каждом домене. +``` +myhostname = stud12.myoffice.ru +mydomain = myoffice.ru +mydestination = myoffice.space $myhostname localhost.$mydomain +``` + +Ограничениями данного подхода являются: + * Полное отсутствие разделения: почта для info@stud12.myoffice.ru доставляется на ту же системную учетную запись UNIX, что и почта для info@myoffice.space. + * При наличии пользователей в файле паролей UNIX администрирование большого числа пользователей становится неудобным. + +### Виртуальные псевдонимы + +При использовании подхода, описанного в данном разделе, каждый размещаемый домен может иметь свой собственный адрес электронной почты `info@stud12.myoffice.ru` и `info@myoffice.space`. Однако при этом по-прежнему используются системные учетные записи UNIX для доставки локальных почтовых ящиков. + +При использовании виртуальных доменов-псевдонимов каждый размещаемый адрес привязывается к локальной учетной записи UNIX-системы или к удаленному адресу. Они не обязательно должны ссылаться на системные учетные записи UNIX на вашей машине. В приведенном ниже примере показано, как использовать этот механизм для домена myoffice.space. +``` +1 /etc/postfix/main.cf: +2 virtual_alias_domains = myoffice.space ...other hosted domains... +3 virtual_alias_maps = hash:/etc/postfix/virtual +``` +``` +5 /etc/postfix/virtual: +6 postmaster@myoffice.space postmaster +7 info@myoffice.space joe +8 sales@myoffice.space jane +9 # Uncomment entry below to implement a catch-all address +10 # @myoffice.space jim +11 ...virtual aliases for more domains... +``` + +Виртуальные псевдонимы решает одну проблему: он позволяет каждому домену иметь свой собственный почтовый адрес. Например это даёт возможность работать с ящиками `info@stud12.myoffice.ru` и `info@myoffice.space` разным пользователям. + +Но при этом остается один недостаток: каждый виртуальный адрес привязывается к системной учетной записи UNIX. При добавлении большего количества виртуальных адресов увеличивается и количество системных учетных записей UNIX. В следующем разделе эта проблема будет устранена. + +### Виртуальные почтовые ящики + +По мере увеличения числа доменов и пользователей в системе становится все менее целесообразным предоставлять каждому пользователю собственную учетную запись в системе UNIX. + +С помощью агента доставки Postfix virtual(8) каждый адрес получателя может иметь свой собственный виртуальный почтовый ящик. В отличие от доменов виртуальных псевдонимов, домены виртуальных почтовых ящиков не нуждаются в неуклюжей трансляции из каждого адреса получателя в другой адрес, а владельцам адресов виртуальных почтовых ящиков не нужно иметь системную учетную запись UNIX. + +Агент доставки виртуальных почтовых ящиков Postfix virtual(8) ищет путь к почтовому ящику пользователя, `uid` и `gid` в отдельных таблицах, которые перебираются вместе с почтовым адресом получателя. Доставка в стиле `Maildir` включается путем завершения имени почтового ящика символом "/". + +Если идея нескольких таблиц покажется вам неудобной, помните, что вы можете перенести информацию (после того как она заработает) в базу данных SQL. Если вы пойдете по этому пути, обязательно ознакомьтесь с разделом "local files versus databases" в верхней части документа VIRTUAL_README. + +Пример конфигурации: +``` +1 /etc/postfix/main.cf: +2 virtual_mailbox_domains = myoffice.space ...more domains... +3 virtual_mailbox_base = /var/mail/vhosts +4 virtual_mailbox_maps = hash:/etc/postfix/vmailbox +5 virtual_minimum_uid = 100 +6 virtual_uid_maps = static:5000 +7 virtual_gid_maps = static:5000 +8 virtual_alias_maps = hash:/etc/postfix/virtual +``` +``` +10 /etc/postfix/vmailbox: +11 info@myoffice.space myoffice.space/info +12 sales@myoffice.space myoffice.space/sales/ +13 # Comment out the entry below to implement a catch-all. +14 # @myoffice.space myoffice.space/catchall +15 ...virtual mailboxes for more domains... +``` +``` +17 /etc/postfix/virtual: +18 postmaster@myoffice.space postmaster +``` + +* Строка 2: Параметр virtual_mailbox_domains указывает Postfix, что myoffice.space является так называемым виртуальным почтовым доменом. Если опустить эту настройку, то Postfix будет отклонять почту (relay access denied) или не сможет ее доставить (почта для myoffice.space зацикливается на себе). + +НИКОГДА не указывайте виртуальное доменное имя MAILBOX в качестве домена mydestination!\ +НИКОГДА не указывайте имя виртуального домена MAILBOX в качестве виртуального домена ALIAS! + +* Строка 3: Параметр virtual_mailbox_base задает префикс для всех имен путей виртуальных почтовых ящиков. Это защитный механизм на случай ошибки. Он предотвращает доставку почты по всей файловой системе. + +* Строки 4, 10-15: Параметр virtual_mailbox_maps задает таблицу поиска с именами почтовых ящиков (или maildir), индексированных по виртуальному почтовому адресу. В данном примере почта для info@myoffice.space отправляется в почтовый ящик по адресу /var/mail/vhosts/myoffice.space/info, а почта для sales@myoffice.space - в maildir, расположенный по адресу /var/mail/vhosts/myoffice.space/sales/. + +* Строка 5: virtual_minimum_uid задает нижнюю границу UID владельца почтового ящика или maildir. Это защитный механизм на случай ошибки. Он предотвращает запись почты в чувствительные файлы. + +* Строки 6, 7: Параметры virtual_uid_maps и virtual_gid_maps указывают, что все виртуальные почтовые ящики принадлежат фиксированным uid и gid 5000. Если это не то, что нужно, укажите таблицы поиска, которые ищут по почтовому адресу получателя. + +* Строка 14: Закомментированная запись (текст после #) показывает, как можно реализовать универсальный адрес виртуального почтового ящика. Будьте готовы к получению большого количества спама, а также отбитого спама, отправленного от имени anything@myoffice.space. + +НИКОГДА не помещайте виртуальный MAILBOX wild-card в виртуальный файл ALIAS!!! + +* Строки 8, 17, 18: Как видите, можно смешивать виртуальные псевдонимы с виртуальными почтовыми ящиками. Мы используем эту возможность для перенаправления почты для адреса postmaster сайта myoffice.space на локальный адрес postmaster. Аналогичный механизм можно использовать и для перенаправления адреса на удаленный адрес. + +* Строка 18: В данном примере предполагается, что в файле main.cf под параметром mydestination указан $myorigin. Если это не так, укажите явное доменное имя в правой части записей таблицы виртуальных псевдонимов, иначе почта будет отправляться не на тот домен. + + +# Как увеличить вероятность доставки почты с вашего почтового сервера? + +## Чеклист + +| Вопрос | Ответ | +|-|-| +| 1. Внесена MX запись на стороне DNS | _______ | +| 2. Настроен SPF на стороне почтового сервера и на стороне DNS | _______ | +| 3. Настроен DKIM на стороне почтового сервера и на стороне DNS | _______ | +| 4. Настроен DMARC на стороне почтового сервера и на стороне DNS | _______| +| 5. Настроен обмен сообщениями по TLS с другими серверами | _______ | +| 6. Получен и настроен сертификат домена от центра сертификации | _______| + +Рекомендуется использовать TLS и избегать STARTTLS. Анекдот про то, как выбирается протокол шифрования в STARTTLS: ``` А: Давай по SSL 2.0. Б: Могу только по SSL 3.0. @@ -108,12 +278,11 @@ AGENTS = service names ∈ /etc/postfix/master.cf А: Договорились ``` -Возможные структуры почтовой системы: -- Postfix, Dovecot имеют доступ к списку пользователей и работают параллельно, разделяя доступ к почтовым ящикам пользователей. -- Dovecot является «бэкендом» для доступа к почтовым ящикам пользователей. При этом подходе, расположение почтовых ящиков, список пользователей, известен только Dovecot. +# Dovecot +Для безопасного подключения клиентов к своим почтовым ящикам по сети требуется сервер, который обеспечивает авторизацию пользователя, установку безопасного соединения. Как администратор вы можете организовать подключение по `ssh`, но это очень не удобно, особенно с мобильных устройств. Удобнее использовать графический почтовый клиент общающийся по протоколу POP3 или IMAP. Одной из широко распространённых открытых реализаций является сервера для общения с почтовыми клиентами является Dovecot. Источники: 1. https://habr.com/ru/articles/258279/ -2. \ No newline at end of file +2. https://github.com/vdukhovni/postfix/tree/master/postfix/README_FILES \ No newline at end of file From 3fcb2cf587ba0e89d195a7bea1861619040dbc5d Mon Sep 17 00:00:00 2001 From: Vladimir Protsenko Date: Sun, 12 Nov 2023 22:44:25 +0000 Subject: [PATCH 2/4] Update virtualization proxy configuration --- module2/06_virtualization/tasks.md | 75 +++++++++++++++++++----------- 1 file changed, 48 insertions(+), 27 deletions(-) diff --git a/module2/06_virtualization/tasks.md b/module2/06_virtualization/tasks.md index 3e28eea..03198bb 100644 --- a/module2/06_virtualization/tasks.md +++ b/module2/06_virtualization/tasks.md @@ -34,7 +34,9 @@ root@n2 # pvecm status ``` ## 3. -Настройте доступ к веб-интерфейсу с помощью прокси сервера. Прокси-машина должна иметь два сетевых интерфейса, каждый в своей vlan: 499 и X. Первая vlan позволяет подключиться к прокси из сети интернет, вторая позволяет обмениваться данными между прокси и новым кластером Proxmox. +Настройте доступ к веб-интерфейсу с помощью прокси сервера. + +### Вариант прокси 1 для доступа по адресу https://studX.myoffice.ru/proxmox/ Пример настройки прокси сервера nginx. ``` @@ -47,29 +49,15 @@ server { ssl_certificate /etc/letsencrypt/live/stud15.myoffice.ru/fullchain.pem; ssl_certificate_key /etc/letsencrypt/live/stud15.myoffice.ru/privkey.pem; ssl_verify_client off; - server_name _; + server_name stud12.myoffice.ru; location / { + # this is for if ($args ~ ^console) { proxy_pass https://192.168.0.201:8006; } try_files $uri $uri/ =404; - } - location /ha/1 { - return 302 https://stud12.myoffice.ru/ha/1/; - } - location /ha/1/ { - # First attempt to serve request as file, then - # as directory, then fall back to displaying a 404. - #try_files $uri $uri/ =404; - proxy_pass http://backend/; - } - location /ha/2 { - return 302 https://stud12.myoffice.ru/ha/2/; - } - location /ha/2/ { - proxy_pass http://192.168.0.4/; - } + } location /proxmox { return 302 https://stud12.myoffice.ru/proxmox/; } @@ -81,8 +69,8 @@ server { proxy_set_header Accept-Encoding ""; # Standard proxying headers (why do we need this?) - proxy_set_header Host stud12.myoffice.ru; - proxy_set_header X-Real-IP 193.32.63.182; + proxy_set_header Host $host; + proxy_set_header X-Real-IP $remote_addr; # You need to set this manually since we include this file inside a server block on a main config proxy_set_header X-Forwarded-Host stud12.myoffice.ru; @@ -92,15 +80,9 @@ server { proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header X-Forwarded-Ssl on; - # hack - sub_filter_once off; - sub_filter 'stud12.myoffice.ru/' 'stud12.myoffice.ru/proxmox/'; - sub_filter 'src="' 'src="/proxmox'; - sub_filter 'href="' 'href="/proxmox'; - sub_filter_types "text/html" "text/javascript" "application/json"; - proxy_pass https://192.168.0.201:8006/; } + # Hacks location ~ ^\/(pve2|api2|novnc|xtermjs|pve-doc|pwt) { rewrite ^/(.+) /proxmox/$1; proxy_pass https://192.168.0.201:8006/$request_uri; @@ -108,6 +90,45 @@ server { } ``` +### Вариант прокси 2 для доступа по адресу https://proxmox.studX.myoffice.ru/ + +``` +server { + listen 80 default_server; + listen [::]:80 default_server; + return 301 https://$host$request_uri; +} +server { + listen 443 ssl; + ssl_certificate /etc/letsencrypt/live/stud12.samara-myoffice.space/fullchain.pem; + ssl_certificate_key /etc/letsencrypt/live/stud12.samara-myoffice.space/privkey.pem; + ssl_verify_client off; + server_name proxmox.stud12.samara-myoffice.space; + + location / { + # for websockets + proxy_http_version 1.1; + proxy_set_header Upgrade $http_upgrade; + proxy_set_header Connection "upgrade"; + + # Standard proxying headers + proxy_set_header Host $host; + proxy_set_header X-Real-IP $remote_addr; + + # You need to set this manually since we include this file inside a server block on a main config + proxy_set_header X-Forwarded-Host proxmox.stud12.samara-myoffice.space; + proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; + + # SSL proxying headers + proxy_set_header X-Forwarded-Proto $scheme; + proxy_set_header X-Forwarded-Ssl on; + + proxy_pass https://10.160.179.184:8006; + } +} +``` + + ## 4. Создайте виртуальную машину в новом Proxmox. Скачайте образ `Core` проекта `Tiny Core Linux` http://tinycorelinux.net/downloads.html. From e3be92ec600cad055a8bf1354eb50c2854c43663 Mon Sep 17 00:00:00 2001 From: Vladimir Protsenko Date: Mon, 13 Nov 2023 06:40:39 +0000 Subject: [PATCH 3/4] Update docker lection, added habr history article --- .../lection.md | 37 ++++++++++++------- 1 file changed, 23 insertions(+), 14 deletions(-) diff --git a/module2/07_docker_containerization_basics/lection.md b/module2/07_docker_containerization_basics/lection.md index 210e130..bb5b5d1 100644 --- a/module2/07_docker_containerization_basics/lection.md +++ b/module2/07_docker_containerization_basics/lection.md @@ -16,33 +16,42 @@ Docker это самый известный инструмент, который ## Основные механизмы работы Docker -Как вы уже знаете, в контейнерном механизме используется несколько средств ядра, которые необходимых для изоляции процессов приложений. - ### 1. Функции ядра -#### 1.1. Пространства имён +В контейнеризации используется несколько технологий ядра Linux, необходимых для обеспечения изоляции и управления контейнерами. + -Пространства имён изолируют контейнерные процессы с точки зрения нескольких функций операционной системы, включая монтирование файловой системы, управление процессами и сетевое взаимодействие. +#### 1.1. Пространства имён (Namespaces) -Например, пространство имён команды `mount` отображает процессы с помощью индивидуального представления иерархии файловой системы. Это аналогично системному вызову `chroot`, который необратимо устанавливает видимый процессу корневой каталог и тем самым отключает доступ к файлам и каталогам хоста, расположенным выше уровня `chroot`. +Namespaces - технология ядра Linux, разработанная в достаточно далёком 2002 году. Docker использует namespaces, такие как PID (Process ID), Network и Mount, для создания изолированных пространств имён. Пространства имён изолируют контейнерные процессы с точки зрения нескольких функций операционной системы, включая монтирование файловой системы, управление процессами и сетевое взаимодействие. + +Например, с использованием PID namespaces каждый контейнер видит только свои процессы, что обеспечивает изоляцию процессов между контейнерами. Пространство имён команды `mount` отображает процессы с помощью индивидуального представления иерархии файловой системы. Это аналогично системному вызову `chroot`, который необратимо устанавливает видимый процессу корневой каталог и тем самым отключает доступ к файлам и каталогам хоста, расположенным выше уровня `chroot`. Контейнеры могут работать на разных уровнях интеграции с операционной системой хоста в зависимости от того, как эти пространства имён были настроены. -#### 1.2. Контрольные группы +#### 1.2. Контрольные группы (Cgroups) + +Cgroups (Control Groups) - технология, разработанная внутри компании Google еще в 2006 году. Контрольные группы ограничивают использование системных ресурсов и определяют приоритетность одних процессов над другими. Контрольные группы препятствуют процессам контейнеров, выходящим из под контроля, использовать всю память и всё доступное время процессора. Это позволяет предотвратить «голодание» ресурсов и обеспечить справедливое распределение мощностей между контейнерами. -Контрольные группы ограничивают использование системных ресурсов и определяют приоритетность одних процессов над другими. Контрольные группы препятствуют процессам контейнеров, выходящим из под контроля, использовать вс. память и всё доступное время процессора. +#### 1.3. Слоистые файловые системы (Union File Systems) -#### 1.3. Функциональные возможности +Docker использует «слоистые» файловые системы, такие как AUFS, OverlayFS и Overlay2, чтобы создавать легковесные и эффективные образы контейнеров. Это возможно благодаря тому, что они разделяют общие файлы между собой, экономя дисковое пространство. + + +#### 1.4. Функциональные возможности (Capabilities) Функциональные возможности позволяют процессам выполнять определённые чувствительные операции с ядром и системные вызовы. Например, процесс может иметь возможность изменять права собственности на файл или устанавливать системное время. -#### 1.4. Режим защищённых вычислений +Ядро Linux предоставляет разные возможности (capabilities) для выполнения привилегированных действий. Docker позволяет настраивать набор возможностей, доступных контейнеру, для более тонкой настройки безопасности. + +#### 1.5. Режим защищённых вычислений (Seccomp) + +Для повышения безопасности Docker может использовать Seccomp. Он ограничивает доступ контейнера к системным вызовам, что позволяет уменьшить поверхность атаки и предотвратить выполнение опасных операций. Он обеспечивает более детальный контроль, чем функциональные возможности. -Режим защищённых вычислений ограничивает доступ к защищённым вызовам. Он обеспечивает более детальный контроль, чем функциональные возможности. ### 2. Сеть -Для обеспечение работы по сети используются такие технологии как: +Для обеспечения работы по сети используются такие технологии как: - встроенные в ядро программные L2 свичи `Linux Bridges`, - механизмы сетевого экрана `netfilter` NAT (преобразование сетевых адресов) и Port Forwarding (проброс портов), - опционально правила SELinux/AppArmor. @@ -67,7 +76,7 @@ Docker это самый известный инструмент, который Docker Hub - это общедоступная служба реестра, поддерживаемая компанией Docker, Inc. В ней содержатся образы многих дистрибутивов, которые вы можете взять в качестве основы для своего образа, и проектов с открытым исходным кодом. -В вашей компании вы можете поднять собственный реестр на основе одного из общедоступных образов реестров. При выборе образа реестра для производственной среды нужно учесть ряд требований к хранилищу данных, к аутентификации и авторизации, и к требованиям выдвигаемым другими задача обслуживания. +В вашей компании вы можете поднять собственный реестр на основе одной из общедоступных реализаций реестров, в том числе поставляемых в виде докер образа. При выборе образа реестра для производственной среды нужно учесть ряд требований к хранилищу данных, к аутентификации и авторизации, и к требованиям выдвигаемым другими задачам обслуживания. ### 5. Механизмы обеспечения персистентности в Docker @@ -79,11 +88,11 @@ Docker реализует три механизма обеспечения по Docker также поддерживает возможность монтирования локальной директории в контейнер. -Все эти возможности, кроме обеспечения персистентности при хранении данных, также обеспечивают более высокую производительность при записи в файловую \ -систему контейнера, по сравнению с верхним слоем `UnionFS`, доступным на запись и чтение. +Все эти возможности, кроме обеспечения персистентности при хранении данных, также обеспечивают более высокую производительность при записи в файловую систему контейнера, по сравнению с верхним слоем `UnionFS`, доступным на запись и чтение. ## Релевантные источники - Nemeth E. et al. UNIX and Linux system administration handbook. Chapter 25. - https://containerd.io/ - https://github.com/moby/moby/blob/master/libnetwork/docs/design.md - https://github.com/containernetworking/cni +- https://habr.com/ru/companies/yandex_praktikum/articles/760076/ From f378efa85281d0a710933e22a69aaf20dcf550f1 Mon Sep 17 00:00:00 2001 From: Vladimir Protsenko Date: Mon, 13 Nov 2023 20:29:58 +0000 Subject: [PATCH 4/4] Updated exam tasks --- .../files/weather.sql | 1294 ----------------- .../exam-playbook-solution-example/main.yml | 11 - .../tasks/install_postgres.yml | 27 - .../tasks/install_selinux.yml | 20 - .../tasks/setup_grub.yml | 11 - .../tasks/setup_raid1_for_postgres.yml | 59 - .../tasks/setup_weather_db.yml | 7 - module2/final_exam/portfolio.md | 6 +- 8 files changed, 3 insertions(+), 1432 deletions(-) delete mode 100644 module2/final_exam/exam-playbook-solution-example/files/weather.sql delete mode 100644 module2/final_exam/exam-playbook-solution-example/main.yml delete mode 100644 module2/final_exam/exam-playbook-solution-example/tasks/install_postgres.yml delete mode 100644 module2/final_exam/exam-playbook-solution-example/tasks/install_selinux.yml delete mode 100644 module2/final_exam/exam-playbook-solution-example/tasks/setup_grub.yml delete mode 100644 module2/final_exam/exam-playbook-solution-example/tasks/setup_raid1_for_postgres.yml delete mode 100644 module2/final_exam/exam-playbook-solution-example/tasks/setup_weather_db.yml diff --git a/module2/final_exam/exam-playbook-solution-example/files/weather.sql b/module2/final_exam/exam-playbook-solution-example/files/weather.sql deleted file mode 100644 index ca7ae9b..0000000 --- a/module2/final_exam/exam-playbook-solution-example/files/weather.sql +++ /dev/null @@ -1,1294 +0,0 @@ --- --- PostgreSQL database dump --- - --- Dumped from database version 14.4 --- Dumped by pg_dump version 14.4 - -SET statement_timeout = 0; -SET lock_timeout = 0; -SET idle_in_transaction_session_timeout = 0; -SET client_encoding = 'UTF8'; -SET standard_conforming_strings = on; -SET check_function_bodies = false; -SET xmloption = content; -SET client_min_messages = warning; -SET row_security = off; - -SET default_tablespace = ''; - -SET default_table_access_method = heap; - --- --- Name: weather; Type: TABLE; Schema: public; Owner: postgres --- - -CREATE TABLE public.weather ( - begin_yearmonth integer, - begin_day integer, - begin_time integer, - end_yearmonth integer, - end_day integer, - end_time integer, - episode_id integer, - event_id integer, - state character varying(14), - state_fips integer, - year integer, - month_name character varying(8), - event_type character varying(24), - cz_type character varying(1), - cz_fips integer, - cz_name character varying(103), - wfo character varying(3), - begin_date_time character varying(18), - cz_timezone character varying(6), - end_date_time character varying(18), - injuries_direct integer, - injuries_indirect integer, - deaths_direct integer, - deaths_indirect integer, - damage_property character varying(7), - damage_crops character varying(6), - source character varying(25), - magnitude real, - magnitude_type character varying(2), - flood_cause character varying(22), - category character varying(1), - tor_f_scale character varying(3), - tor_length real, - tor_width integer, - tor_other_wfo character varying(3), - tor_other_cz_state character varying(2), - tor_other_cz_fips integer, - tor_other_cz_name character varying(10), - begin_range integer, - begin_azimuth character varying(3), - begin_location character varying(43), - end_range integer, - end_azimuth character varying(3), - end_location character varying(43), - begin_lat real, - begin_lon real, - end_lat real, - end_lon real, - episode_narrative character varying(2653), - event_narrative character varying(1098), - data_source character varying(3) -); - - -ALTER TABLE public.weather OWNER TO postgres; - --- --- Data for Name: weather; Type: TABLE DATA; Schema: public; Owner: postgres --- - -COPY public.weather (begin_yearmonth, begin_day, begin_time, end_yearmonth, end_day, end_time, episode_id, event_id, state, state_fips, year, month_name, event_type, cz_type, cz_fips, cz_name, wfo, begin_date_time, cz_timezone, end_date_time, injuries_direct, injuries_indirect, deaths_direct, deaths_indirect, damage_property, damage_crops, source, magnitude, magnitude_type, flood_cause, category, tor_f_scale, tor_length, tor_width, tor_other_wfo, tor_other_cz_state, tor_other_cz_fips, tor_other_cz_name, begin_range, begin_azimuth, begin_location, end_range, end_azimuth, end_location, begin_lat, begin_lon, end_lat, end_lon, episode_narrative, event_narrative, data_source) FROM stdin; -201102 27 300 201102 27 1500 49358 289076 NEW HAMPSHIRE 33 2011 February Winter Storm Z 12 EASTERN HILLSBOROUGH BOX 27-FEB-11 03:00:00 EST-5 27-FEB-11 15:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A weak area of low pressure moved eastward out of the Great Lakes Region and off the New England shoreline gradually pushing out to sea. Mainly advisory level snows were experienced over much of the forecast region as a very cold air mass was in place over the region with slightly drier conditions. A total of 6 to 8 inches of snow fell across Hillsborough County. CSV -201101 18 630 201101 18 1630 47655 277847 NEW HAMPSHIRE 33 2011 January Winter Storm Z 12 EASTERN HILLSBOROUGH BOX 18-JAN-11 06:30:00 EST-5 18-JAN-11 16:30:00 0 0 0 0 0.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N Area of low pressure developed and moved up the eastern shoreline bringing a mix of snow and ice for the New England region. Between 6 to 8 inches of snow fell across Eastern Hillsborough County. CSV -201101 21 400 201101 21 1200 47661 277878 NEW HAMPSHIRE 33 2011 January Winter Storm Z 12 EASTERN HILLSBOROUGH BOX 21-JAN-11 04:00:00 EST-5 21-JAN-11 12:00:00 0 0 0 0 0.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N An area of low pressure lifted northeast through the Western Atlantic and passed offshore of the Southeastern New England Shoreline. Snow accumulations on the order of 3 to 8 inches, with lighter amounts out on the Cape and Islands, were attributable with this storm. The light and fluffy nature of the snow combined with strong winds associated with the storm resulted in blowing and drifing, as well as visibility restrictions. Between 5 to 7 inches of snow fell across Eastern Hillsborough County. CSV -201101 27 100 201101 27 1000 47986 280010 NEW HAMPSHIRE 33 2011 January Heavy Snow Z 12 EASTERN HILLSBOROUGH BOX 27-JAN-11 01:00:00 EST-5 27-JAN-11 10:00:00 0 0 0 0 0.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N A strong low pressure system moved up the coast and southeast of Nantucket producing up to nine inches of snow in eastern Hillsborough County. Four to nine inches of snow fell across eastern Hillsborough County. CSV -201101 12 200 201101 12 2200 48019 280156 NEW HAMPSHIRE 33 2011 January Heavy Snow Z 12 EASTERN HILLSBOROUGH BOX 12-JAN-11 02:00:00 EST-5 12-JAN-11 22:00:00 0 0 0 0 0.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N A developing nor'easter coastal storm dumped up to twenty inches of snow across southern New Hampshire in a 24 hour period.||This was the second major storm of an above average winter of snowfall. The first occurred December 26 and 27, with several other relatively minor snowfalls in the month of January, and a third major storm February 1 and 2. With only a brief thaw in between the December storm and the January storm, snow piled up across southern New England resulting in numerous roof collapses, towns seeking permission to dump excess snow in area rivers and bays, and numerous disruptions to transportation. Fifteen to twenty inches of snow fell across eastern Hillsborough County. CSV -201110 29 1500 201110 30 800 57676 350515 NEW HAMPSHIRE 33 2011 October Heavy Snow Z 12 EASTERN HILLSBOROUGH BOX 29-OCT-11 15:00:00 EST-5 30-OCT-11 08:00:00 0 0 0 0 50.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N A rare and historic October Nor'easter brought very heavy snow to portions of southern New England on Saturday October 29. Low pressure tracked northeast from the North Carolina coast Saturday morning, rapidly strengthening as it passed well south of Nantucket Saturday evening. As the storm intensified, colder air from aloft was drawn into New England resulting in heavy snow in the interior. ||Snowfall accumulations of one to two feet were common in the Monadnocks, Berkshires, Connecticut Valley, and higher elevations in central Massachusetts. Up to 31 inches of snow was reported at Jaffrey, New Hampshire and Plainfield, Massachusetts. Minor accumulations were even reported down to the south coast as the rain changed to a period of snow late Saturday night before ending. The accumulation of the heavy wet snow on trees and power lines resulted in widespread tree damage and power outages across many communities in central and western Massachusetts, southern New Hampshire, and northeastern Connecticut. This resulted in school closures and numerous towns cancelled or rescheduled Halloween and trick-or-treating activities. At the peak, 300,000 customers in New Hampshire were without power. ||The precipitation started as mainly snow early Saturday afternoon across the interior of southern New England, although a brief period of rain at the onset was common across the lower elevations. Several hours of heavy snow occurred from mid afternoon through late evening on Saturday October 29. Snowfall rates reached 3 inches per hour for several hours in the Berkshires and Monadnocks as a nearly stationary band of heavy snow set up across this region. The snow tapered off just after midnight Saturday night in western New England with the last of the precipitation exiting eastern New England Sunday morning. This storm also brought damaging winds to Cape Cod and the islands with wind gusts up to 70 mph occurring early Sunday morning October 30 as well as minor to moderate coastal flooding to east coastal Massachusetts during the high tide early Sunday morning. Nine to twenty-one inches of snow fell across eastern Hillsborough County, with the higher amounts focused to the north. Heavy wet snow fell on foliated trees, breaking branches and downing trees and wires, resulting in widespread power outages. CSV -201108 28 853 201108 28 1453 57538 345212 NEW HAMPSHIRE 33 2011 August Tropical Storm Z 12 EASTERN HILLSBOROUGH BOX 28-AUG-11 08:53:00 EST-5 28-AUG-11 14:53:00 0 0 0 0 15.00K 0.00K Amateur Radio \N \N \N \N \N \N \N \N \N \N Hurricane Irene formed east of the Caribbean island of Dominica, part of the Lesser Antilles region, on the afternoon of August 20. Irene moved through the Caribbean and up the east coast of the United States making landfall twice. She first made landfall as a Category 1 Hurricane near Cape Lookout, North Carolina around 7:30am on August 27, then moved offshore again during the evening. She then made a 2nd landfall, again as a Category 1 Hurricane at 540am on August 28 near Little Egg Inlet in New Jersey. She moved over New York City and then into southeastern New York State and Connecticut as a Tropical Storm a few hours later. By the end of the evening of the 28th, Irene was crossing the U.S./Canada border having produced significant amounts of rain, storm surge, inland and coastal flooding, and wind damage across southern New England and much of the east coast of the United States. ||In Southern New England, the minimum surface pressure recorded was 976.9mb taken at Barnes Municipal Airport in Westfield, Massachusetts. The storm surge experienced along the coast was generally in the two to four foot range with a high of 4.78 feet at Fox Point in Providence, Rhode Island. The highest sustained windspeed was 54 knots (62 mph) at the Physical Oceanographic Real Time System station at Conimicut Light in Narragansett Bay, RI. The highest sustained wind speed on land was 38 knots (44 mph) recorded on the Automated Surface Observing Systems at both Barnstable Municipal Airport in Hyannis, MA (KHYA) and Logan International Airport in Boston, MA (KBOS). Rainfall amounts ranged from nearly zero (0.03 at Nantucket Memorial Airport - ACK) to nearly 10 inches (9.92 in Conway, MA). ||Despite the relatively low wind speeds, sustained winds over a 6 to 12 hour long duration resulted in widespread tree damage and resulted in power outages to roughly half a million customers throughout the state. Some of these customers did not get their power back until the Friday following the storm (some five days later). Durring the passage of Tropical Storm Irene, the winds resulted in $25,000 in property damages. ||The Connecticut River at Walpole reached its highest level since the 1938 hurricane.||The collective effects of Tropical Storm Irene on August 28, resulted in 1 fatality, 0 injuries, and $127.3M in property damage in the following counties: Barnstable, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Nantucket, Norfolk, Plymouth, Suffolk, and Worcester (all in MA), Hartford, Tolland, and Windham (all in CT), Cheshire and Hillsborough (all in NH), and Bristol, Providence, Kent, Washington, and Newport (all in RI). Trees and wires were downed in Pelham on Mount Vernon Road. The Automated Surface Observing System at Manchester Airport (KMHT) recorded sustained wind speeds of 29 knots (33mph) and wind gusts of 44 knots (51 mph). The Automated Weather Observation System at Nashua-Boire Field (KASH) recorded sustained wind speeds of 28 knots (32 mph) and wind gusts of 45 knots (52 mph). CSV -201110 30 120 201110 30 120 57676 352765 NEW HAMPSHIRE 33 2011 October Strong Wind Z 12 EASTERN HILLSBOROUGH BOX 30-OCT-11 01:20:00 EST-5 30-OCT-11 01:20:00 0 0 0 0 5.00K 0.00K Amateur Radio 35 EG \N \N \N \N \N \N \N \N \N A rare and historic October Nor'easter brought very heavy snow to portions of southern New England on Saturday October 29. Low pressure tracked northeast from the North Carolina coast Saturday morning, rapidly strengthening as it passed well south of Nantucket Saturday evening. As the storm intensified, colder air from aloft was drawn into New England resulting in heavy snow in the interior. ||Snowfall accumulations of one to two feet were common in the Monadnocks, Berkshires, Connecticut Valley, and higher elevations in central Massachusetts. Up to 31 inches of snow was reported at Jaffrey, New Hampshire and Plainfield, Massachusetts. Minor accumulations were even reported down to the south coast as the rain changed to a period of snow late Saturday night before ending. The accumulation of the heavy wet snow on trees and power lines resulted in widespread tree damage and power outages across many communities in central and western Massachusetts, southern New Hampshire, and northeastern Connecticut. This resulted in school closures and numerous towns cancelled or rescheduled Halloween and trick-or-treating activities. At the peak, 300,000 customers in New Hampshire were without power. ||The precipitation started as mainly snow early Saturday afternoon across the interior of southern New England, although a brief period of rain at the onset was common across the lower elevations. Several hours of heavy snow occurred from mid afternoon through late evening on Saturday October 29. Snowfall rates reached 3 inches per hour for several hours in the Berkshires and Monadnocks as a nearly stationary band of heavy snow set up across this region. The snow tapered off just after midnight Saturday night in western New England with the last of the precipitation exiting eastern New England Sunday morning. This storm also brought damaging winds to Cape Cod and the islands with wind gusts up to 70 mph occurring early Sunday morning October 30 as well as minor to moderate coastal flooding to east coastal Massachusetts during the high tide early Sunday morning. A tree was downed on Route 3 near exit 2, blocking the right hand lane. CSV -201107 21 1600 201107 21 1800 55656 333708 NEW HAMPSHIRE 33 2011 July Excessive Heat Z 12 EASTERN HILLSBOROUGH BOX 21-JUL-11 16:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 0.00K 0.00K AWOS \N \N \N \N \N \N \N \N \N \N A strong upper level ridge brought very hot temperatures to Southern New England. A moist southwest low level flow increased humidity levels such that heat index values rose above 105 degrees for a period of a few hours. The Automated Weather Observation System at Boire Field Airport in Nashua (KASH) recorded heat indexes of 105 over a two hour period. CSV -201102 1 900 201102 2 1200 48483 283307 NEW HAMPSHIRE 33 2011 February Winter Storm Z 12 EASTERN HILLSBOROUGH BOX 01-FEB-11 09:00:00 EST-5 02-FEB-11 12:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A series of low pressure centers impacted the Southern New England Region with a combination of heavy snows and ice. The first area of low pressure on February 1st lifted northeastward offshore of the Southeastern New England shoreline ushering heavy snows across the interior portions of New England, especially north and west. A second area of low pressure deepened through the Ohio River Valley, redeveloping over the Southeastern New England shoreline bringing a combination of heavy snows, sleet and freezing rain over much of the region February 2nd, before changing back to all snow into the end of the event. A total of 10-14 inches of snow fell across Hillsborough County over the two day period. CSV -201106 28 1650 201106 28 1653 54705 328712 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 155 ROBESON ILM 28-JUN-11 16:50:00 EST-5 28-JUN-11 16:53:00 0 0 0 0 9.00K 0.00K Emergency Manager 56 EG \N \N \N 1 SSW RED SPGS 0 S RED SPGS 34.8108 -79.1868 34.8157 -79.1807 Thunderstorms developed along the Piedmont trough during the early afternoon. These storms blossomed given the high instability and deep moisture. A few of these storms pulsed to severe levels as they interacted with the approaching seabreeze. Numerous trees and power lines were reported down across town. One tree fell onto a car. There were no reported injuries. CSV -201106 28 1510 201106 28 1511 54706 328717 SOUTH CAROLINA 45 2011 June Thunderstorm Wind C 41 FLORENCE ILM 28-JUN-11 15:10:00 EST-5 28-JUN-11 15:11:00 0 0 0 0 0.00K 0.00K Trained Spotter 50 EG \N \N \N 2 SSW PROSTPECT XRDS 2 SSW PROSTPECT XRDS 33.8039 -79.5658 33.8039 -79.5658 Thunderstorms developed along the Piedmont trough during the early afternoon. These storms blossomed given the high instability and deep moisture. A few of these storms pulsed to severe levels as they interacted with the approaching seabreeze. Large branches were reported down along Vox Highway. CSV -201106 28 1700 201106 28 1700 54343 326349 VIRGINIA 51 2011 June Thunderstorm Wind C 680 LYNCHBURG (C) RNK 28-JUN-11 17:00:00 EST-5 28-JUN-11 17:00:00 0 0 0 0 18.00K 0.00K Law Enforcement 60 EG \N \N \N 2 SE BLUE RIDGE FARMS 1 E LYNCHBURG 37.4 -79.18 37.42 -79.14 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew trees down across the City of Lynchburg. Damage values are estimated. CSV -201106 28 1701 201106 28 1701 54343 326350 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 28-JUN-11 17:01:00 EST-5 28-JUN-11 17:01:00 0 0 0 0 0.90K 0.00K State Official 50 EG \N \N \N 1 WNW LAWYERS 1 WNW LAWYERS 37.3084 -79.2363 37.3084 -79.2363 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew a tree down along Leesville Road. Damage values are estimated. CSV -201106 28 1648 201106 28 1648 54343 326352 VIRGINIA 51 2011 June Thunderstorm Wind C 19 BEDFORD RNK 28-JUN-11 16:48:00 EST-5 28-JUN-11 16:48:00 0 0 0 0 2.70K 0.00K State Official 55 EG \N \N \N 1 SW FOREST 2 N FOREST 37.36 -79.29 37.4 -79.28 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew a few trees down just west of Lynchburg. Damage values are estimated. CSV -201106 28 1715 201106 28 1715 54343 326357 VIRGINIA 51 2011 June Thunderstorm Wind C 29 BUCKINGHAM RNK 28-JUN-11 17:15:00 EST-5 28-JUN-11 17:15:00 0 0 0 0 4.50K 0.00K Law Enforcement 55 EG \N \N \N 3 NW DILLWYN 3 NW DILLWYN 37.56 -78.49 37.56 -78.49 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew trees down on Route 20 at Allenslevel. Damage values are estimated. CSV -201106 20 1716 201106 20 1716 53576 320901 KANSAS 20 2011 June Thunderstorm Wind C 115 MARION ICT 20-JUN-11 17:16:00 CST-6 20-JUN-11 17:16:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N HILLSBORO 0 N HILLSBORO 38.35 -97.2 38.35 -97.2 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 1717 201106 20 1717 53576 320902 KANSAS 20 2011 June Hail C 173 SEDGWICK ICT 20-JUN-11 17:17:00 CST-6 20-JUN-11 17:17:00 0 0 0 0 0.00K 0.00K Public 1.25 \N \N \N 3 SW WICHITA 3 SW WICHITA 37.6768 -97.3676 37.6768 -97.3676 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Hail report was at Friends University. CSV -201106 20 1725 201106 20 1725 53576 320906 KANSAS 20 2011 June Flood C 173 SEDGWICK ICT 20-JUN-11 17:25:00 CST-6 20-JUN-11 17:25:00 0 0 0 0 0.00K 0.00K Trained Spotter \N Heavy Rain \N \N \N 1 SSW WICHITA 2 SSW WICHITA 37.6891 -97.3361 37.6802 -97.341 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Minor street flooding occurred in Downtown Wichita. CSV -201106 20 1729 201106 20 1729 53576 320907 KANSAS 20 2011 June Thunderstorm Wind C 15 BUTLER ICT 20-JUN-11 17:29:00 CST-6 20-JUN-11 17:29:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 2 SW ANDOVER 2 SW ANDOVER 37.7 -97.15 37.7 -97.15 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 1741 201106 20 1741 53576 320909 KANSAS 20 2011 June Hail C 191 SUMNER ICT 20-JUN-11 17:41:00 CST-6 20-JUN-11 17:41:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 3 WSW BELLE PLAINE 3 WSW BELLE PLAINE 37.39 -97.28 37.39 -97.28 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201105 22 1711 201105 22 1711 51915 309354 MISSOURI 29 2011 May Hail C 175 RANDOLPH EAX 22-MAY-11 17:11:00 CST-6 22-MAY-11 17:11:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 4 SE HIGBEE 4 SE HIGBEE 39.28 -92.47 39.28 -92.47 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. CSV -201106 28 1452 201106 28 1453 54706 328721 SOUTH CAROLINA 45 2011 June Thunderstorm Wind C 41 FLORENCE ILM 28-JUN-11 14:52:00 EST-5 28-JUN-11 14:53:00 0 0 0 0 1.00K 0.00K Department of Highways 54 EG \N \N \N 3 E LAKE CITY 3 E LAKE CITY 33.8689 -79.6978 33.8689 -79.6978 Thunderstorms developed along the Piedmont trough during the early afternoon. These storms blossomed given the high instability and deep moisture. A few of these storms pulsed to severe levels as they interacted with the approaching seabreeze. Tree down across McCutcheon Road. CSV -201106 27 1230 201106 27 1230 54699 328978 NORTH CAROLINA 37 2011 June Lightning C 47 COLUMBUS ILM 27-JUN-11 12:30:00 EST-5 27-JUN-11 12:30:00 0 0 0 0 1.00K 0.00K Trained Spotter \N \N \N \N 6 NNW WHITEVILLE 6 NNW WHITEVILLE 34.4102 -78.7403 34.4102 -78.7403 Convection rapidly developed along the seabreeze during the early afternoon. These storms interacted with an east to west boundary as well as old outflow boundaries. A couple storms pulsed to severe levels. Lightning hit a transformer. CSV -201108 1 0 201108 31 2359 54910 329922 GEORGIA 13 2011 August Drought Z 125 DOUGHERTY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329923 GEORGIA 13 2011 August Drought Z 142 EARLY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329924 GEORGIA 13 2011 August Drought Z 157 GRADY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329925 GEORGIA 13 2011 August Drought Z 131 IRWIN TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329926 GEORGIA 13 2011 August Drought Z 161 LANIER TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329927 GEORGIA 13 2011 August Drought Z 126 LEE TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329928 GEORGIA 13 2011 August Drought Z 160 LOWNDES TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329929 GEORGIA 13 2011 August Drought Z 143 MILLER TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201104 27 1227 201104 27 1500 50307 302997 MISSISSIPPI 28 2011 April Flash Flood C 143 TUNICA MEG 27-APR-11 12:27:00 CST-6 27-APR-11 15:00:00 0 0 0 0 125.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 1 N O K 2 N JEFFRIES 34.6367 -90.4971 34.5361 -90.5315 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Heavy rain produced flash flooding all across Tunica County. Most of the roads were closed due to water covering them. Some roads had up to 3 feet of water covering them. Old Highway 61 was washed out between Dundee and Mayplace. CSV -201104 27 1210 201104 27 1215 50307 303000 MISSISSIPPI 28 2011 April Hail C 107 PANOLA MEG 27-APR-11 12:10:00 CST-6 27-APR-11 12:15:00 0 0 0 0 0.00K Broadcast Media 4 \N \N \N 1 SSE BATESVILLE 1 SSE BATESVILLE 34.3111 -89.9471 34.3111 -89.9471 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201106 11 1810 201106 11 1810 54834 329418 KANSAS 20 2011 June Hail C 175 SEWARD DDC 11-JUN-11 18:10:00 CST-6 11-JUN-11 18:10:00 0 0 0 0 Public 1 \N \N \N 5 WSW (LBL)LIBERAL ARPT 5 WSW (LBL)LIBERAL ARPT 37.03 -101.05 37.03 -101.05 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. CSV -201104 27 1240 201104 27 1245 50307 303001 MISSISSIPPI 28 2011 April Hail C 71 LAFAYETTE MEG 27-APR-11 12:40:00 CST-6 27-APR-11 12:45:00 0 0 0 0 0.00K Law Enforcement 1.75 \N \N \N 3 S OXFORD 3 S OXFORD 34.3266 -89.52 34.3266 -89.52 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201106 26 2158 201106 26 2158 54109 324303 MISSOURI 29 2011 June Thunderstorm Wind C 81 HARRISON EAX 26-JUN-11 21:58:00 CST-6 26-JUN-11 21:58:00 0 0 0 0 0.00K 0.00K Trained Spotter 56 EG \N \N \N 0 N HATFIELD 0 N HATFIELD 40.53 -94.15 40.53 -94.15 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 65 mph. CSV -201106 26 2201 201106 26 2201 54109 324304 MISSOURI 29 2011 June Hail C 81 HARRISON EAX 26-JUN-11 22:01:00 CST-6 26-JUN-11 22:01:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 0 N HATFIELD 0 N HATFIELD 40.53 -94.15 40.53 -94.15 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. CSV -201104 15 535 201104 15 540 50602 298283 MISSISSIPPI 28 2011 April Thunderstorm Wind C 135 TALLAHATCHIE MEG 15-APR-11 05:35:00 CST-6 15-APR-11 05:40:00 0 0 0 0 0.00K Emergency Manager 50 EG \N \N \N 0 N PAYNES 1 NE PAYNES 33.9267 -90.0714 33.9273 -90.0591 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. Damaging straight line winds tore the front roof off of a home on Shook Road in the Paynes Community. A carport was flipped and destroyed while an outbuilding was damaged. Trees and power lines were also knocked down. CSV -201104 15 1446 201104 15 1451 50600 298424 ARKANSAS 5 2011 April Hail C 55 GREENE MEG 15-APR-11 14:46:00 CST-6 15-APR-11 14:51:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 2 ENE EVENING STAR 2 ENE EVENING STAR 36.1911 -90.6669 36.1911 -90.6669 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201104 15 1530 201104 15 1535 50601 298425 TENNESSEE 47 2011 April Hail C 131 OBION MEG 15-APR-11 15:30:00 CST-6 15-APR-11 15:35:00 0 0 0 0 0.00K Amateur Radio 1 \N \N \N 0 N UNION CITY 0 N UNION CITY 36.42 -89.05 36.42 -89.05 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201104 15 1536 201104 15 1541 50601 298426 TENNESSEE 47 2011 April Hail C 53 GIBSON MEG 15-APR-11 15:36:00 CST-6 15-APR-11 15:41:00 0 0 0 0 0.00K Emergency Manager 1 \N \N \N 0 N DYER 0 N DYER 36.07 -89 36.07 -89 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201105 22 1616 201105 22 1616 51915 309344 MISSOURI 29 2011 May Hail C 53 COOPER EAX 22-MAY-11 16:16:00 CST-6 22-MAY-11 16:16:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 WSW BOONVILLE 1 WSW BOONVILLE 38.96 -92.75 38.96 -92.75 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. CSV -201105 22 1614 201105 22 1614 51915 309345 MISSOURI 29 2011 May Hail C 53 COOPER EAX 22-MAY-11 16:14:00 CST-6 22-MAY-11 16:14:00 0 0 0 0 0.00K 0.00K Law Enforcement 2.75 \N \N \N 3 NW CLARKS FORK 3 NW CLARKS FORK 38.91 -92.68 38.91 -92.68 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. CSV -201105 22 1615 201105 22 1615 51915 309350 MISSOURI 29 2011 May Hail C 53 COOPER EAX 22-MAY-11 16:15:00 CST-6 22-MAY-11 16:15:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 1 WSW BOONVILLE 1 WSW BOONVILLE 38.96 -92.75 38.96 -92.75 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. CSV -201105 22 1700 201105 22 1700 51915 309352 MISSOURI 29 2011 May Hail C 53 COOPER EAX 22-MAY-11 17:00:00 CST-6 22-MAY-11 17:00:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.75 \N \N \N 3 ENE LICK 3 ENE LICK 38.94 -92.77 38.94 -92.77 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. CSV -201105 22 1657 201105 22 1657 51915 309353 MISSOURI 29 2011 May Thunderstorm Wind C 175 RANDOLPH EAX 22-MAY-11 16:57:00 CST-6 22-MAY-11 16:57:00 0 0 0 0 0.40K 0.00K Broadcast Media 52 EG \N \N \N 1 SE HIGBEE 1 SE HIGBEE 39.31 -92.51 39.31 -92.51 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. A powerpole was reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201105 22 1720 201105 22 1720 51915 309355 MISSOURI 29 2011 May Thunderstorm Wind C 53 COOPER EAX 22-MAY-11 17:20:00 CST-6 22-MAY-11 17:20:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 2 ESE BOONVILLE VIERTEL AR 2 ESE BOONVILLE VIERTEL AR 38.96 -92.64 38.96 -92.64 A cold front helped to generate severe thunderstorms, across portions of Missouri, mainly along the Interstate 70 corridor, in the afternoon hours of May 22, 2011. There were several reports of tornadoes, along with reports of hail and damaging wind. Small trees were snapped off, with thunderstorm wind gusts estimated up to 60 mph. CSV -201106 24 1701 201106 24 1707 54421 327836 GEORGIA 13 2011 June Thunderstorm Wind C 57 CHEROKEE FFC 24-JUN-11 17:01:00 EST-5 24-JUN-11 17:07:00 0 0 0 0 1.00K 0.00K Emergency Manager 37 EG \N \N \N 2 W OAK GROVE 3 W WOODSTOCK 34.08 -84.655 34.1 -84.5724 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The Cherokee County Emergency Management Director reported that three trees were down in the far southwestern portion of the county. CSV -201107 11 1630 201107 11 1630 52669 317492 NEBRASKA 31 2011 July Hail C 161 SHERIDAN LBF 11-JUL-11 16:30:00 MST-7 11-JUL-11 16:30:00 0 0 0 0 0.00K 0.00K Public 2.5 \N \N \N 10 SSE GORDON 10 SSE GORDON 42.66 -102.12 42.66 -102.12 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. CSV -201107 11 1625 201107 11 1625 52669 317493 NEBRASKA 31 2011 July Thunderstorm Wind C 161 SHERIDAN LBF 11-JUL-11 16:25:00 MST-7 11-JUL-11 16:25:00 0 0 0 0 0.00K 0.00K Public 52 EG \N \N \N 11 SSW GORDON 11 SSW GORDON 42.6529 -102.2829 42.6529 -102.2829 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. Thunderstorm wind gusts tore 4 inch branches off of trees. CSV -201107 11 1733 201107 11 1733 52669 317495 NEBRASKA 31 2011 July Hail C 161 SHERIDAN LBF 11-JUL-11 17:33:00 MST-7 11-JUL-11 17:33:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 19 NNE ELLSWORTH 19 NNE ELLSWORTH 42.33 -102.14 42.33 -102.14 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. CSV -201107 11 1738 201107 11 1738 52669 317496 NEBRASKA 31 2011 July Hail C 161 SHERIDAN LBF 11-JUL-11 17:38:00 MST-7 11-JUL-11 17:38:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 18 NNE ELLSWORTH 18 NNE ELLSWORTH 42.31 -102.14 42.31 -102.14 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. CSV -201106 11 1443 201106 11 1451 53682 321925 GEORGIA 13 2011 June Hail C 313 WHITFIELD FFC 11-JUN-11 14:43:00 EST-5 11-JUN-11 14:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 2 NNW ROCKY FACE 3 S ROCKY FACE 34.8267 -85.0435 34.7566 -85.03 An upper short wave was moving from the central into the eastern U.S. around a subtropical ridge located over south Texas. A cold front accompanied the short wave. A warm, moist, unstable air mass continued across the southeastern U.S. The combination of these features provided ample support for scattered to numerous thunderstorms during the afternoon and evening hours. A number of these became strong producing penny-sized hail. Isolated storms became severe producing quarter-sized hail and damaging downburst winds. The most notable storm affected Jackson county in northeast Georgia where damaging downburst winds caused considerable damage to a large commercial building. The Whitfield County Emergency Management Director reported penny-sized hail near Rocky Face. CSV -201106 11 1508 201106 11 1513 53682 321926 GEORGIA 13 2011 June Hail C 149 HEARD FFC 11-JUN-11 15:08:00 EST-5 11-JUN-11 15:13:00 0 0 0 0 0.00K 0.00K County Official 1 \N \N \N 1 SE CENTRALHATCHEE 3 ESE CENTRALHATCHEE 33.3598 -85.1678 33.3534 -85.132 An upper short wave was moving from the central into the eastern U.S. around a subtropical ridge located over south Texas. A cold front accompanied the short wave. A warm, moist, unstable air mass continued across the southeastern U.S. The combination of these features provided ample support for scattered to numerous thunderstorms during the afternoon and evening hours. A number of these became strong producing penny-sized hail. Isolated storms became severe producing quarter-sized hail and damaging downburst winds. The most notable storm affected Jackson county in northeast Georgia where damaging downburst winds caused considerable damage to a large commercial building. The Heard County 911 Center reported quarter-sized hail just southeast of Centralhatchee. CSV -201106 12 1412 201106 12 1420 53710 321931 GEORGIA 13 2011 June Thunderstorm Wind C 311 WHITE FFC 12-JUN-11 14:12:00 EST-5 12-JUN-11 14:20:00 0 0 0 0 5.00K 0.00K Public 50 EG \N \N \N 0 N HELEN 0 N SAUTEE 34.7 -83.72 34.68 -83.67 Northwest flow aloft was deepening across the eastern U.S. as trough deepened in the northeast U.S. and the ever present subtropical ridge amplified into the southern Plains. The unstable northwest flow, combined with daytime heating, allowed for isolated to scattered afternoon and evening thunderstorm development. One storm briefly became severe in White county of northeast Georgia producing damaging downburst winds. The public reports that at least 10 trees were down and several power poles were either down or bent over through the central part of the county. CSV -201106 11 1735 201106 11 1735 54834 329417 KANSAS 20 2011 June Hail C 175 SEWARD DDC 11-JUN-11 17:35:00 CST-6 11-JUN-11 17:35:00 0 0 0 0 Public 1.75 \N \N \N 6 SSE HAYNE 6 SSE HAYNE 37.02 -100.76 37.02 -100.76 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. CSV -201106 11 1825 201106 11 1825 54834 329419 KANSAS 20 2011 June Hail C 175 SEWARD DDC 11-JUN-11 18:25:00 CST-6 11-JUN-11 18:25:00 0 0 0 0 Trained Spotter 1 \N \N \N 8 ESE HAYNE 8 ESE HAYNE 37.04 -100.67 37.04 -100.67 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. CSV -201106 11 1905 201106 11 1905 54834 329420 KANSAS 20 2011 June Hail C 119 MEADE DDC 11-JUN-11 19:05:00 CST-6 11-JUN-11 19:05:00 0 0 0 0 Public 1.5 \N \N \N 9 SW MEADE STATE PARK 9 SW MEADE STATE PARK 37.07 -100.52 37.07 -100.52 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. Winds were also estimated to be 60 MPH. CSV -201106 4 1645 201106 4 1646 53679 321712 OHIO 39 2011 June Thunderstorm Wind C 3 ALLEN IWX 04-JUN-11 16:45:00 EST-5 04-JUN-11 16:46:00 0 0 0 0 0.00K 0.00K Law Enforcement 55 EG \N \N \N 1 SW LIMA 1 SW LIMA 40.74 -84.11 40.74 -84.11 A weak cold front and a lake breeze over northeastern Illinois, combined with very unstable conditions to promote rapid storm development from northern Illinois into portions of northern Indiana. Most of the damage was from a bowing segment and high precipitation supercell that moved across northeastern Illinois into western Indiana. Pockets of more intense wind damage occurred, with numerous reports of funnel clouds and a few gustnadoes on a few very pronounced outflow boundaries. Law enforcement officials reported trees and power lines down on the east side of Lima. CSV -201106 4 1745 201106 4 1746 53679 321713 OHIO 39 2011 June Thunderstorm Wind C 3 ALLEN IWX 04-JUN-11 17:45:00 EST-5 04-JUN-11 17:46:00 0 0 0 0 0.00K 0.00K Emergency Manager 55 EG \N \N \N 1 NE LAFAYETTE 1 NE LAFAYETTE 40.76 -83.94 40.76 -83.94 A weak cold front and a lake breeze over northeastern Illinois, combined with very unstable conditions to promote rapid storm development from northern Illinois into portions of northern Indiana. Most of the damage was from a bowing segment and high precipitation supercell that moved across northeastern Illinois into western Indiana. Pockets of more intense wind damage occurred, with numerous reports of funnel clouds and a few gustnadoes on a few very pronounced outflow boundaries. Emergency management officials reported trees and power lines down. CSV -201106 8 2300 201106 8 2301 53803 322391 MICHIGAN 26 2011 June Thunderstorm Wind C 21 BERRIEN IWX 08-JUN-11 23:00:00 EST-5 08-JUN-11 23:01:00 0 0 0 0 0.00K 0.00K Law Enforcement 55 EG \N \N \N 1 NW COLOMA 1 NW COLOMA 42.19 -86.31 42.19 -86.31 Unstable conditions were in place along the edge of strong ridging across the region. Steep lapse rates and moderate shear allowed thunderstorms to develop on lake breeze boundaries. Trees and power lines reported down in and around Coloma. CSV -201106 11 1724 201106 11 1730 53682 321928 GEORGIA 13 2011 June Thunderstorm Wind C 157 JACKSON FFC 11-JUN-11 17:24:00 EST-5 11-JUN-11 17:30:00 0 0 0 0 50.00K 0.00K County Official 52 EG \N \N \N 2 SW CENTER 3 SW CENTER 34.0295 -83.4447 34.0193 -83.4571 An upper short wave was moving from the central into the eastern U.S. around a subtropical ridge located over south Texas. A cold front accompanied the short wave. A warm, moist, unstable air mass continued across the southeastern U.S. The combination of these features provided ample support for scattered to numerous thunderstorms during the afternoon and evening hours. A number of these became strong producing penny-sized hail. Isolated storms became severe producing quarter-sized hail and damaging downburst winds. The most notable storm affected Jackson county in northeast Georgia where damaging downburst winds caused considerable damage to a large commercial building. The Jackson County 911 Center reported extensive wind damage in the southeast part of the county, just southwest of Center. The roof of a commercial building collapsed and damage was also reported to a gymnasium next door. At least 10 trees and several power lines were down in the vicinity as well. CSV -201106 11 1756 201106 11 1756 53682 321929 GEORGIA 13 2011 June Lightning C 157 JACKSON FFC 11-JUN-11 17:56:00 EST-5 11-JUN-11 17:56:00 0 0 0 0 2.00K 0.00K County Official \N \N \N \N 0 NW COMMERCE 0 NW COMMERCE 34.204 -83.4571 34.204 -83.4571 An upper short wave was moving from the central into the eastern U.S. around a subtropical ridge located over south Texas. A cold front accompanied the short wave. A warm, moist, unstable air mass continued across the southeastern U.S. The combination of these features provided ample support for scattered to numerous thunderstorms during the afternoon and evening hours. A number of these became strong producing penny-sized hail. Isolated storms became severe producing quarter-sized hail and damaging downburst winds. The most notable storm affected Jackson county in northeast Georgia where damaging downburst winds caused considerable damage to a large commercial building. The Jackson County 911 Center reported that lightning struck a home on Windmill Drive causing minimal damage to the structure. No fire was observed from this incident. CSV -201106 24 1726 201106 24 1747 54421 327844 GEORGIA 13 2011 June Hail C 143 HARALSON FFC 24-JUN-11 17:26:00 EST-5 24-JUN-11 17:47:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 WSW POPLAR SPRINGS 0 WSW BUCHANAN 33.79 -85.3 33.8 -85.18 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The public observed quarter-sized hail on Jacksonville Road north of Tallapoosa and west of Buchanan. WSR-88D radar data suggests that similar-sized hail likely continued to the northeast and toward Buchanan. CSV -201105 21 1912 201105 21 1912 52007 309902 MISSOURI 29 2011 May Hail C 49 CLINTON EAX 21-MAY-11 19:12:00 CST-6 21-MAY-11 19:12:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 5 NE PERRIN 5 NE PERRIN 39.72 -94.36 39.72 -94.36 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201108 1 0 201108 31 2359 54907 329887 ALABAMA 1 2011 August Drought Z 69 HOUSTON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D1-D2 drought conditions (moderate to severe) across Coffee and Dale counties and D2-D3 drought conditions (severe to extreme) across Henry, Houston, and Geneva counties. Below average rainfall fell during the month, and drought conditions worsened to D2-D3 status across all of the counties by the end of the month and continued into September. CSV -201105 21 1917 201105 21 1917 52007 309903 MISSOURI 29 2011 May Hail C 21 BUCHANAN EAX 21-MAY-11 19:17:00 CST-6 21-MAY-11 19:17:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 3 E SAXTON 3 E SAXTON 39.72 -94.68 39.72 -94.68 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1915 201105 21 1915 52007 309904 MISSOURI 29 2011 May Hail C 63 DE KALB EAX 21-MAY-11 19:15:00 CST-6 21-MAY-11 19:15:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 7 E OSBORN 7 E OSBORN 39.74 -94.24 39.74 -94.24 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1930 201105 21 1930 52007 309905 MISSOURI 29 2011 May Hail C 21 BUCHANAN EAX 21-MAY-11 19:30:00 CST-6 21-MAY-11 19:30:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 3 E SAXTON 3 E SAXTON 39.72 -94.68 39.72 -94.68 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1936 201105 21 1936 52007 309906 MISSOURI 29 2011 May Hail C 81 HARRISON EAX 21-MAY-11 19:36:00 CST-6 21-MAY-11 19:36:00 0 0 0 0 0.00K 0.00K Amateur Radio 1.5 \N \N \N 0 N HATFIELD 0 N HATFIELD 40.53 -94.15 40.53 -94.15 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1945 201105 21 1945 52007 309907 MISSOURI 29 2011 May Hail C 61 DAVIESS EAX 21-MAY-11 19:45:00 CST-6 21-MAY-11 19:45:00 0 0 0 0 0.00K 0.00K COOP Observer 0.75 \N \N \N 1 SE GALLATIN 1 SE GALLATIN 39.91 -93.96 39.91 -93.96 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201104 27 630 201104 27 1400 50307 303708 MISSISSIPPI 28 2011 April Flash Flood C 81 LEE MEG 27-APR-11 06:30:00 CST-6 27-APR-11 14:00:00 0 0 0 0 0.00K 0.00K Public \N Heavy Rain \N \N \N 4 NW BALDWYN 1 NNE FROG IS 34.544 -88.6748 34.3777 -88.7668 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Heavy rain produced flash flooding all across Lee County. Numerous roads were flooded in Baldwyn and Tupelo as a result. CSV -201104 26 1830 201104 27 300 50307 303729 MISSISSIPPI 28 2011 April Flash Flood C 107 PANOLA MEG 26-APR-11 18:30:00 CST-6 27-APR-11 03:00:00 0 0 0 0 150.00K 0.00K Trained Spotter \N Heavy Rain \N \N \N 1 NNE ASKEW 4 SW CRENSHAW 34.5394 -90.193 34.466 -90.2527 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Heavy rain produced widespread road flooding all across Panola County. Numerous streets were washed out near Crenshaw and Como. CSV -201107 1 0 201107 31 2359 55299 332089 FLORIDA 12 2011 July Drought Z 168 COASTAL PALM BEACH COUNTY MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Severe to extreme drought conditions remained over the area through the end of the month. CSV -201105 1 0 201105 31 2359 52262 311814 NEW MEXICO 35 2011 May Drought Z 507 WEST CENTRAL HIGHLANDS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201105 1 0 201105 31 2359 52262 311815 NEW MEXICO 35 2011 May Drought Z 508 SOUTHWEST MOUNTAINS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 29 1240 201106 29 1300 54379 326490 UTAH 49 2011 June Thunderstorm Wind C 35 SALT LAKE SLC 29-JUN-11 12:40:00 MST-7 29-JUN-11 13:00:00 0 0 0 0 2.00K 0.00K Mesonet 65 MG \N \N \N 3 WNW SALT LAKE NO TWO ARP 1 NW (SLC)SALT LAKE CITY 40.63 -112.06 40.79 -111.98 Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. A strong thunderstorm moved through the Salt Lake Valley, with maximum recorded wind gusts of 75 mph at the Center Tailings Center sensor, 69 mph at the Baccus Highway sensor, 66 mph at the FAA sensor at the Salt Lake City International Airport, and 60 mph at the Salt Lake City International Airport ASOS. In addition, a Russian olive tree was knocked over at the north side of the Salt Lake City International airport, and fell onto a building. CSV -201106 18 1608 201106 18 1613 54264 325640 GEORGIA 13 2011 June Thunderstorm Wind C 111 FANNIN FFC 18-JUN-11 16:08:00 EST-5 18-JUN-11 16:13:00 0 0 0 0 7.00K 0.00K County Official 50 EG \N \N \N 0 N COLWELL 0 N EPWORTH 34.9 -84.47 34.95 -84.38 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Fannin County 911 Center reported that at least six trees and several power lines were down around Epworth in the western part of the county. CSV -201106 24 1849 201106 24 1849 54421 327856 GEORGIA 13 2011 June Lightning C 77 COWETA FFC 24-JUN-11 18:49:00 EST-5 24-JUN-11 18:49:00 0 0 0 0 1.00K 0.00K County Official \N \N \N \N 0 N SHARPSBURG 0 N SHARPSBURG 33.33 -84.65 33.33 -84.65 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The Coweta County 911 Center reported that a home in Sharpsburg was struck by lightning. No fire ensued and damages were minor. CSV -201107 3 1641 201107 3 1641 53528 320336 WEST VIRGINIA 54 2011 July Hail C 33 HARRISON RLX 03-JUL-11 16:41:00 EST-5 03-JUL-11 16:41:00 0 0 0 0 0.00K 0.00K Broadcast Media 1 \N \N \N 0 N BRIDGEPORT 0 N BRIDGEPORT 39.28 -80.25 39.28 -80.25 A moist and unstable environment was aided by daytime heating to create thunderstorms. Some of the storms pulsed to severe limits with tree damage or large hail. CSV -201107 1 0 201107 31 2359 55299 332094 FLORIDA 12 2011 July Drought Z 174 FAR SOUTH MIAMI-DADE COUNTY MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Moderate to severe drought conditions remained over the area through the end of the month. CSV -201107 1 0 201107 31 2359 55299 332096 FLORIDA 12 2011 July Drought Z 173 COASTAL MIAMI-DADE COUNTY MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Severe to extreme drought conditions remained over the area through the end of the month. CSV -201107 6 1820 201107 6 1820 53274 318705 GEORGIA 13 2011 July Thunderstorm Wind C 305 WAYNE JAX 06-JUL-11 18:20:00 EST-5 06-JUL-11 18:20:00 0 0 0 0 State Official 50 EG \N \N \N 3 NE KVILLE 3 NE KVILLE 31.58 -82.1 31.58 -82.1 Mean layer troughing combined with increased moisture sparked a few storms across southeast Georgia. A pulse severe storm produced wind damage near Screven in Wayne County. Trees were blown down along Kville Road. The time of the damage was based on radar. CSV -201107 1 0 201107 31 2359 55299 332095 FLORIDA 12 2011 July Drought Z 74 METROPOLITAN MIAMI-DADE MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Severe to extreme drought conditions remained over the area through the end of the month. CSV -201108 1 0 201108 31 2359 54907 329884 ALABAMA 1 2011 August Drought Z 66 DALE TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D1-D2 drought conditions (moderate to severe) across Coffee and Dale counties and D2-D3 drought conditions (severe to extreme) across Henry, Houston, and Geneva counties. Below average rainfall fell during the month, and drought conditions worsened to D2-D3 status across all of the counties by the end of the month and continued into September. CSV -201106 15 1720 201106 15 1720 54837 329463 KANSAS 20 2011 June Hail C 171 SCOTT DDC 15-JUN-11 17:20:00 CST-6 15-JUN-11 17:20:00 0 0 0 0 Public 0.75 \N \N \N 7 W SCOTT STATE PARK 7 W SCOTT STATE PARK 38.69 -101.04 38.69 -101.04 High terrain thunderstorms drifted out of eastern Colorado during the late evening. CSV -201106 15 1828 201106 15 1828 54837 329464 KANSAS 20 2011 June Hail C 55 FINNEY DDC 15-JUN-11 18:28:00 CST-6 15-JUN-11 18:28:00 0 0 0 0 Public 0.88 \N \N \N 3 WNW TENNIS 3 WNW TENNIS 38.19 -100.96 38.19 -100.96 High terrain thunderstorms drifted out of eastern Colorado during the late evening. CSV -201106 15 2110 201106 15 2110 54837 329465 KANSAS 20 2011 June Hail C 25 CLARK DDC 15-JUN-11 21:10:00 CST-6 15-JUN-11 21:10:00 0 0 0 0 Trained Spotter 0.75 \N \N \N 4 SW MINNEOLA 4 SW MINNEOLA 37.39 -100.01 37.39 -100.01 High terrain thunderstorms drifted out of eastern Colorado during the late evening. Hail covered the ground. CSV -201106 15 2110 201106 15 2110 54837 329466 KANSAS 20 2011 June Thunderstorm Wind C 25 CLARK DDC 15-JUN-11 21:10:00 CST-6 15-JUN-11 21:10:00 0 0 0 0 Trained Spotter 78 EG \N \N \N 4 SW MINNEOLA 4 SW MINNEOLA 37.39 -100.01 37.39 -100.01 High terrain thunderstorms drifted out of eastern Colorado during the late evening. Tree branches of 4 to 5 inches in diameter were broken and several power poles were blown down. CSV -201106 15 1930 201106 15 1930 54837 329467 KANSAS 20 2011 June Thunderstorm Wind C 69 GRAY DDC 15-JUN-11 19:30:00 CST-6 15-JUN-11 19:30:00 0 0 0 0 Public 52 EG \N \N \N 10 NNE CIMARRON ARPT 10 NNE CIMARRON ARPT 37.97 -100.31 37.97 -100.31 High terrain thunderstorms drifted out of eastern Colorado during the late evening. There was extensive blowing dust with the wind. CSV -201106 15 1955 201106 15 1955 54837 329468 KANSAS 20 2011 June Thunderstorm Wind C 69 GRAY DDC 15-JUN-11 19:55:00 CST-6 15-JUN-11 19:55:00 0 0 0 0 Storm Chaser 52 MG \N \N \N 4 NW HAGGARD 4 NW HAGGARD 37.66 -100.35 37.66 -100.35 High terrain thunderstorms drifted out of eastern Colorado during the late evening. The wind was measured with a hand held device. CSV -201106 15 1945 201106 15 1945 54837 329469 KANSAS 20 2011 June Thunderstorm Wind C 69 GRAY DDC 15-JUN-11 19:45:00 CST-6 15-JUN-11 19:45:00 0 0 0 0 Public 61 EG \N \N \N 5 NNW HAGGARD 5 NNW HAGGARD 37.69 -100.33 37.69 -100.33 High terrain thunderstorms drifted out of eastern Colorado during the late evening. Winds were estimated to be 70 MPH. CSV -201106 20 1405 201106 20 1405 51483 306019 GULF OF MEXICO 85 2011 June Waterspout Z 53 CRAIG KEY TO THE W END OF THE 7 MILE BRIDGE OUT 20NM KEY 20-JUN-11 14:05:00 EST-5 20-JUN-11 14:05:00 0 0 0 0 0.00K 0.00K Mariner \N \N \N \N 9 S MARATHON 9 S MARATHON 24.5697 -81.08 24.5697 -81.08 An isolated shower produced a waterspout over the Atlantic waters south of Marathon. A waterspout was observed by a charter boat captain about 5 miles southeast of Sombrero Key Light. The visible funnel cloud extended to the ocean surface. CSV -201106 25 2145 201106 25 2145 51486 306040 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 54 W END OF THE 7 MILE BRIDGE TO KEY W OUT 20NM KEY 25-JUN-11 21:45:00 EST-5 25-JUN-11 21:45:00 0 0 0 0 0.00K 0.00K ASOS 37 MG \N \N \N 1 ENE KEY WEST 1 ENE KEY WEST 24.5566 -81.755 24.5566 -81.755 Southerly steering flow enabled outflow boundaries from thunderstorms along the northern Cuba coastline to produce additional thunderstorm development across the Florida Straits. Localized gale-force wind gusts occurred with the thunderstorms near Key West and the Dry Tortugas. A wind gust of 37 knots...43 mph...was measured at the Key West International Airport ASOS. CSV -201108 18 1000 201108 18 1900 54035 323712 TEXAS 48 2011 August Wildfire Z 256 COASTAL WILLACY BRO 18-AUG-11 10:00:00 CST-6 18-AUG-11 19:00:00 0 0 0 0 Park/Forest Service \N \N \N \N \N \N \N \N \N \N Several wild fires occurred on August 17th and 18th in Cameron and Willacy County, from a combination of human carelessness and a continued record hot month with little rainfall, embedded in a water year (since October 1, 2010) drought which had inland areas of Cameron and Willacy County ranked in the top 10 despite welcome rainfall in late June, and coastal areas ranked in the top 5, where much less rain fell. ||A controlled burn on the Rancho Viejo Golf course grew out of control briefly shortly after 9 AM on August 17th, when gusty winds spread flames to a pile of nearby brush. Stacking of tree limbs well above permit rules likely contributed to the quick spread. No structures were threatened. Another fire sparked along Lewis Lane in Harlingen, grew to just below 10 acres, and burned down a shed and some fencing but no significant structures, during the afternoon of the 17th. The largest fire burned hundreds of acres in Willacy County on the 18th. A truck, driving erratically through dry brush, eventually got stuck and sparks likely from a hot catalytic converter set off a blaze, which quickly grew to 50 acres by noon and would grow rapidly through the afternoon, as east winds increased to 20 mph with gusts which may have reached 25 mph. The fire was contained by late afternoon and controlled during the evening after several flare-ups.||The final report indicated 500 acres burned on the Robert East Ranch,|one mile northwest of Port Mansfield, in Willacy County. During containment and control, eight firefighters were treated for heat exhaustion/dehydration, and one firefighter was treated for a sprained knee.||Responding agencies included: Port Mansfield, Raymondville, San Perlita, Lyford, Santa Monica, La Feria, Rio Hondo, Linn-San Manuel and Edinburg Volunteer Fire Departments (VFDs), McAllen and Harlingen Fire Departments (FDs), McAllen Public Works, Willacy County Sheriff���s Office (SO), Emergency Medical Service (EMS), Hidalgo County Emergency Management Coordinator (EMC) and Texas Parks and Wildlife Department (TPWD). CSV -201107 3 1853 201107 3 1853 53528 320338 WEST VIRGINIA 54 2011 July Hail C 101 WEBSTER RLX 03-JUL-11 18:53:00 EST-5 03-JUL-11 18:53:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.88 \N \N \N 0 N CLEVELAND 0 N CLEVELAND 38.72 -80.38 38.72 -80.38 A moist and unstable environment was aided by daytime heating to create thunderstorms. Some of the storms pulsed to severe limits with tree damage or large hail. CSV -201108 1 0 201108 31 2359 54907 329886 ALABAMA 1 2011 August Drought Z 67 HENRY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D1-D2 drought conditions (moderate to severe) across Coffee and Dale counties and D2-D3 drought conditions (severe to extreme) across Henry, Houston, and Geneva counties. Below average rainfall fell during the month, and drought conditions worsened to D2-D3 status across all of the counties by the end of the month and continued into September. CSV -201106 18 1815 201106 18 1815 53573 320801 KANSAS 20 2011 June Hail C 19 CHAUTAUQUA ICT 18-JUN-11 18:15:00 CST-6 18-JUN-11 18:15:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 1 N CEDAR VALE 1 N CEDAR VALE 37.11 -96.5 37.11 -96.5 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 18 1634 201106 18 1645 54264 325644 GEORGIA 13 2011 June Thunderstorm Wind C 57 CHEROKEE FFC 18-JUN-11 16:34:00 EST-5 18-JUN-11 16:45:00 0 0 0 0 15.00K 0.00K Emergency Manager 52 EG \N \N \N 1 W GREELEY 2 N ARNOLD MILL 34.4 -84.65 34.15 -84.38 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Cherokee County Emergency Management Director reported widespread and extensive damage to trees throughout the county. No specific damage to structures or vehicles was noted, however. CSV -201106 18 1631 201106 18 1650 54264 326142 GEORGIA 13 2011 June Thunderstorm Wind C 85 DAWSON FFC 18-JUN-11 16:31:00 EST-5 18-JUN-11 16:50:00 0 0 0 0 15.00K 0.00K County Official 51 EG \N \N \N 3 WNW JOHNTOWN 4 SE LUMPKIN 34.56 -84.33 34.34 -83.98 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Dawson County 911 Center reported that up to 50 trees were down across the county. CSV -201106 10 2025 201106 10 2025 54270 325618 KANSAS 20 2011 June Hail C 133 NEOSHO ICT 10-JUN-11 20:25:00 CST-6 10-JUN-11 20:25:00 0 0 0 0 Trained Spotter 0.75 \N \N \N 0 N THAYER 0 N THAYER 37.48 -95.48 37.48 -95.48 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. CSV -201106 10 2030 201106 10 2030 54270 325619 KANSAS 20 2011 June Hail C 133 NEOSHO ICT 10-JUN-11 20:30:00 CST-6 10-JUN-11 20:30:00 0 0 0 0 Trained Spotter 0.88 \N \N \N 6 S THAYER 6 S THAYER 37.39 -95.47 37.39 -95.47 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. The hail occurred with 40 to 50 mph winds. CSV -201106 12 1653 201106 12 1653 54059 325068 VIRGINIA 51 2011 June Thunderstorm Wind C 83 HALIFAX RNK 12-JUN-11 16:53:00 EST-5 12-JUN-11 16:53:00 0 0 0 0 0.90K 0.00K State Official 50 EG \N \N \N 1 NW CLOVER 1 NW CLOVER 36.835 -78.7364 36.835 -78.7364 Scattered showers and storms accompanied the passage of a cold front. Some of these storms increased to severe levels with damaging winds and large hail in areas along and east of the crest of the Blue Ridge. Thunderstorm winds blew a tree down on Mount Laurel Road near Clover. Damage values are estimated. CSV -201106 12 1515 201106 12 1527 54059 325070 VIRGINIA 51 2011 June Thunderstorm Wind C 680 LYNCHBURG (C) RNK 12-JUN-11 15:15:00 EST-5 12-JUN-11 15:27:00 0 0 0 0 90.00K 0.00K Public 65 EG \N \N \N 1 SSW LYH IVY HILL ARPT 1 E LYH IVY HILL ARPT 37.38 -79.23 37.4 -79.21 Scattered showers and storms accompanied the passage of a cold front. Some of these storms increased to severe levels with damaging winds and large hail in areas along and east of the crest of the Blue Ridge. Numerous trees were blown down within a two mile swath. Many were blown down on Mayfield Drive and others were blown down on Gaddy Road, and within an apartment complex off Lakeside Drive near the intersection with Route 501. Damage values are estimated. CSV -201106 12 1515 201106 12 1515 54059 325071 VIRGINIA 51 2011 June Thunderstorm Wind C 19 BEDFORD RNK 12-JUN-11 15:15:00 EST-5 12-JUN-11 15:15:00 0 0 0 0 9.00K 0.00K Law Enforcement 55 EG \N \N \N 3 ENE BEDFORD CITY 3 ENE BEDFORD CITY 37.35 -79.4884 37.35 -79.4884 Scattered showers and storms accompanied the passage of a cold front. Some of these storms increased to severe levels with damaging winds and large hail in areas along and east of the crest of the Blue Ridge. Thunderstorm winds blew multiple trees down along Forest Road just outside of the City of Bedford limits. Damage values are estimated. CSV -201106 12 1533 201106 12 1533 54059 325072 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 12-JUN-11 15:33:00 EST-5 12-JUN-11 15:33:00 0 0 0 0 3.00K 0.00K State Official 60 EG \N \N \N 1 W LYNCHBURG ARPT 1 W LYNCHBURG ARPT 37.3274 -79.2249 37.3274 -79.2249 Scattered showers and storms accompanied the passage of a cold front. Some of these storms increased to severe levels with damaging winds and large hail in areas along and east of the crest of the Blue Ridge. Thunderstorm winds blew power lines down on Lynx Road. Damage values are estimated. CSV -201106 10 2200 201106 10 2200 53598 321131 OHIO 39 2011 June Thunderstorm Wind C 13 BELMONT PBZ 10-JUN-11 22:00:00 EST-5 10-JUN-11 22:00:00 0 0 0 0 50.00K 0.00K Amateur Radio 50 EG \N \N \N 0 N ST CLAIRSVILLE 0 N ST CLAIRSVILLE 40.08 -80.9 40.08 -80.9 Scattered severe thunderstorms developed over eastern Ohio as a weak front pushed northeast across the Ohio Valley. Amateur radio reported power lines down in St. Clairsville. CSV -201106 10 2045 201106 10 2045 53598 321133 OHIO 39 2011 June Thunderstorm Wind C 119 MUSKINGUM PBZ 10-JUN-11 20:45:00 EST-5 10-JUN-11 20:45:00 0 0 0 0 0.00K Trained Spotter 52 EG \N \N \N 1 E DRESDEN 1 E DRESDEN 40.12 -82.01 40.12 -82.01 Scattered severe thunderstorms developed over eastern Ohio as a weak front pushed northeast across the Ohio Valley. A trained spotter reported a wind gust of 53 knots near Dresden. CSV -201106 10 1352 201106 10 1352 53600 321137 WEST VIRGINIA 54 2011 June Hail C 61 MONONGALIA PBZ 10-JUN-11 13:52:00 EST-5 10-JUN-11 13:52:00 0 0 0 0 0.00K Trained Spotter 0.75 \N \N \N 1 E WESTOVER 1 E WESTOVER 39.63 -79.96 39.63 -79.96 Scattered severe thunderstorms developed over eastern Ohio as a weak front pushed northeast across the Ohio Valley. CSV -201106 16 1636 201106 16 1636 53603 321156 PENNSYLVANIA 42 2011 June Thunderstorm Wind C 85 MERCER PBZ 16-JUN-11 16:36:00 EST-5 16-JUN-11 16:36:00 0 0 0 0 25.00K 0.00K Amateur Radio 50 EG \N \N \N 1 N HENLEIN 1 N HENLEIN 41.41 -80.38 41.41 -80.38 Scattered thunderstorms developed with a weak disturbance aloft across the Ohio Valley. A few storms were severe. Amateur radio reported power lins down in Greenville. CSV -201106 6 2355 201106 6 2355 53772 322215 MINNESOTA 27 2011 June Hail C 21 CASS DLH 06-JUN-11 23:55:00 CST-6 06-JUN-11 23:55:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 3 ENE CASS LAKE 3 ENE CASS LAKE 47.4 -94.56 47.4 -94.56 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. Hail, up to quarter size, covered the ground. CSV -201106 7 42 201106 7 42 53772 322218 MINNESOTA 27 2011 June Hail C 61 ITASCA DLH 07-JUN-11 00:42:00 CST-6 07-JUN-11 00:42:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.25 \N \N \N 1 SE COHASSET 1 SE COHASSET 47.26 -93.62 47.26 -93.62 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. CSV -201106 7 50 201106 7 50 53772 322219 MINNESOTA 27 2011 June Hail C 61 ITASCA DLH 07-JUN-11 00:50:00 CST-6 07-JUN-11 00:50:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 N GRAND RAPIDS ARPT 1 N GRAND RAPIDS ARPT 47.23 -93.52 47.23 -93.52 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. CSV -201106 7 55 201106 7 55 53772 322220 MINNESOTA 27 2011 June Hail C 61 ITASCA DLH 07-JUN-11 00:55:00 CST-6 07-JUN-11 00:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 N GRAND RAPIDS ARPT 1 N GRAND RAPIDS ARPT 47.23 -93.52 47.23 -93.52 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. Hail fell for 5 to 10 minutes. CSV -201106 7 155 201106 7 155 53772 322221 MINNESOTA 27 2011 June Hail C 137 ST. LOUIS DLH 07-JUN-11 01:55:00 CST-6 07-JUN-11 01:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 NE DULUTH INTL ARPT 1 NE DULUTH INTL ARPT 46.86 -92.17 46.86 -92.17 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. Hail fell for five minutes. CSV -201106 23 1822 201106 23 1822 51633 307027 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 177 TYRRELL MHX 23-JUN-11 18:22:00 EST-5 23-JUN-11 18:22:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 1 ESE LEGION BEACH 1 ESE LEGION BEACH 35.94 -76.28 35.94 -76.28 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced hail and damaging wind gusts from the Coastal Plain to the Coast. Public reported trees down near the intersection of Riverneck Road and Soundside Road. CSV -201106 23 1835 201106 23 1835 51633 307028 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 103 JONES MHX 23-JUN-11 18:35:00 EST-5 23-JUN-11 18:35:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 4 SE MAYSVILLE 4 SE MAYSVILLE 34.85 -77.18 34.85 -77.18 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced hail and damaging wind gusts from the Coastal Plain to the Coast. Public reported large tree limbs down across Highway 58 near Stella. CSV -201106 23 1842 201106 23 1842 51633 307029 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 49 CRAVEN MHX 23-JUN-11 18:42:00 EST-5 23-JUN-11 18:42:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 3 ENE GRANTHAMS 3 ENE GRANTHAMS 35.08 -76.97 35.08 -76.97 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced hail and damaging wind gusts from the Coastal Plain to the Coast. Law enforcement reported multiple trees down near Fairfield Harbor. CSV -201106 23 1858 201106 23 1858 51633 307030 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 137 PAMLICO MHX 23-JUN-11 18:58:00 EST-5 23-JUN-11 18:58:00 0 0 0 0 0.00K 0.00K Broadcast Media 50 EG \N \N \N 1 NE STONEWALL 1 NE STONEWALL 35.14 -76.74 35.14 -76.74 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced hail and damaging wind gusts from the Coastal Plain to the Coast. Media relayed report from public of trees down on road near Stonewall. CSV -201106 23 1655 201106 23 1655 51633 307031 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 107 LENOIR MHX 23-JUN-11 16:55:00 EST-5 23-JUN-11 16:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 2 WSW INSTITUTE 2 WSW INSTITUTE 35.34 -77.75 35.34 -77.75 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced hail and damaging wind gusts from the Coastal Plain to the Coast. Trained spotter reported a 60 mph wind gust. CSV -201106 19 100 201106 19 100 50915 306960 MISSOURI 29 2011 June Thunderstorm Wind C 65 DENT SGF 19-JUN-11 01:00:00 CST-6 19-JUN-11 01:00:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 1 SE GANO 1 SE GANO 37.7071 -91.552 37.7075 -91.5505 A frontal boundary across the area and an upper level disturbance moving across the central Plains into the Ozarks caused a cluster of strong to severe storms to develop. Storms produced high winds and large hail across the area. A tree was reported down across Highway 68 just north of Highway U. CSV -201106 24 245 201106 24 245 51648 306961 MISSOURI 29 2011 June Hail C 11 BARTON SGF 24-JUN-11 02:45:00 CST-6 24-JUN-11 02:45:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 2 NE VERDELLA 2 NE VERDELLA 37.62 -94.42 37.62 -94.42 A line of thunderstorms, with a few embedded strong cells, moved across the region. The strongest storms produced up to quarter sized hail. CSV -201104 16 1700 201104 16 1700 50328 300113 VIRGINIA 51 2011 April Thunderstorm Wind C 153 PRINCE WILLIAM LWX 16-APR-11 17:00:00 EST-5 16-APR-11 17:00:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 1 S MINNIEVILLE 1 S MINNIEVILLE 38.6089 -77.3473 38.6089 -77.3473 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down on Larchmont Court and Brawner Drive. CSV -201104 16 1710 201104 16 1710 50328 300114 VIRGINIA 51 2011 April Thunderstorm Wind C 153 PRINCE WILLIAM LWX 16-APR-11 17:10:00 EST-5 16-APR-11 17:10:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 1 NW WOODBRIDGE 1 NW WOODBRIDGE 38.6586 -77.265 38.6586 -77.265 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down at the intersection of Millwood Drive and Horner Road. CSV -201104 16 1736 201104 16 1736 50328 300115 VIRGINIA 51 2011 April Thunderstorm Wind C 43 CLARKE LWX 16-APR-11 17:36:00 EST-5 16-APR-11 17:36:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 1 ESE BRIGGS 1 ESE BRIGGS 39.0977 -78.0085 39.0977 -78.0085 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down on Millwood Pike. CSV -201104 14 800 201104 14 1500 51002 301922 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 1 NW CALVARY 1 NNW CALVARY 38.88 -78.56 38.8856 -78.5593 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 682 was closed due to flooding. CSV -201104 14 800 201104 14 1500 51002 301931 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 1 S ST LUKE 1 SSW ST LUKE 38.89 -78.58 38.889 -78.583 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 679 was closed due to flooding. CSV -201104 14 800 201104 14 1500 51002 301932 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 2 SSE SAUMSVILLE 2 SSE SAUMSVILLE 38.9 -78.48 38.9009 -78.4842 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Artz Road was closed due to flooding on North Fork Shenandoah River. CSV -201105 24 1915 201105 24 1915 51966 313265 OKLAHOMA 40 2011 May Thunderstorm Wind C 111 OKMULGEE TSA 24-MAY-11 19:15:00 CST-6 24-MAY-11 19:15:00 0 0 0 0 0.00K 0.00K Public 61 EG \N \N \N 2 S BEGGS 2 S BEGGS 35.7011 -96.07 35.7011 -96.07 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. Strong thunderstorm wind gusts blew down large trees. CSV -201106 9 1936 201106 9 1936 53934 323893 MARYLAND 24 2011 June Thunderstorm Wind C 510 BALTIMORE CITY (C) LWX 09-JUN-11 19:36:00 EST-5 09-JUN-11 19:36:00 0 0 0 0 1.00K Broadcast Media 52 EG \N \N \N 0 ENE GOVANS 0 ENE GOVANS 39.3715 -76.5958 39.3715 -76.5958 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Large tree limbs were down along Walker Avenue. CSV -201106 9 1936 201106 9 1936 53934 323895 MARYLAND 24 2011 June Thunderstorm Wind C 510 BALTIMORE CITY (C) LWX 09-JUN-11 19:36:00 EST-5 09-JUN-11 19:36:00 0 0 0 0 2.00K Newspaper 56 EG \N \N \N 1 NNE HAMPDEN 1 NNE HAMPDEN 39.3576 -76.6245 39.3576 -76.6245 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Large trees were down on North Charles Street. CSV -201106 9 1936 201106 9 1936 53934 323896 MARYLAND 24 2011 June Thunderstorm Wind C 510 BALTIMORE CITY (C) LWX 09-JUN-11 19:36:00 EST-5 09-JUN-11 19:36:00 0 0 0 0 2.00K Trained Spotter 52 EG \N \N \N 1 ENE HAMPDEN 1 ENE HAMPDEN 39.3572 -76.6142 39.3572 -76.6142 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Three limbs and a tree were blown over near Park Heights. CSV -201106 9 2245 201106 9 2245 53934 323898 MARYLAND 24 2011 June Thunderstorm Wind C 3 ANNE ARUNDEL LWX 09-JUN-11 22:45:00 EST-5 09-JUN-11 22:45:00 0 0 0 0 Mesonet 54 MG \N \N \N 1 NE SELBY BEACH 1 NE SELBY BEACH 38.91 -76.51 38.91 -76.51 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. A wind gust of 62 mph was measured near South River. CSV -201106 10 1806 201106 10 1806 53935 323920 VIRGINIA 51 2011 June Thunderstorm Wind C 3 ALBEMARLE LWX 10-JUN-11 18:06:00 EST-5 10-JUN-11 18:06:00 0 0 0 0 1.00K Public 50 EG \N \N \N 2 ENE RED HILL 2 ENE RED HILL 37.9783 -78.5937 37.9783 -78.5937 A surface trough combined with moderate amounts of instability to trigger showers and thunderstorms. A few thunderstorms were able to produce large hail and damaging winds across central Virginia. Several branches that were five to six inches in diameter were blown down in thunderstorm wind gusts. CSV -201104 26 2025 201104 26 2032 49622 293875 LOUISIANA 22 2011 April Tornado C 13 BIENVILLE SHV 26-APR-11 20:25:00 CST-6 26-APR-11 20:32:00 0 0 0 0 0.00K 0.00K NWS Storm Survey \N EF1 5.27 100 \N 1 SW UNION 4 NNE UNION 32.3701 -92.8346 32.4328 -92.7832 A very volatile atmosphere developed during the late afternoon...evening and overnight hours of April 26th across the Four State Region. An area of low pressure moved from the Texas Hill Country into Northeast Texas during the afternoon. Meanwhile, a warm front had moved northward from central Louisiana and was oriented west to east near the Arkansas/Louisiana state line. A dry line had moved just east of the I-35 corridor of North Central Texas and a strong cold front trailed the dry line. Very strong speed and directional shear was noted in the low and mid levels of the atmosphere such that supercells developed. Many of these produced tornadoes across the region. Other storms produced strong straight line wind gusts with bowing segments and large hail. Multiple trees were snapped and uprooted along a 5.5 mile track. A tornado touched down 7 miles west northwest of Quitman in Bienville Parish. The tornado continued northeast crossing Hwy. 147 and ending 8 miles southwest of Grambling near the Bienville/Jackson Parish line. Winds were estimated at 85-95 mph. CSV -201105 2 445 201105 5 115 51786 308433 OKLAHOMA 40 2011 May Flood C 79 LE FLORE TSA 02-MAY-11 04:45:00 CST-6 05-MAY-11 01:15:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 2 NNE PANAMA 2 S PANAMA 35.1967 -94.6565 35.1411 -94.67 A stalled frontal boundary across southeastern Oklahoma and the passage of several upper level disturbances on the 1st and 2nd led to several periods of thunderstorms over the region. Widespread heavy rainfall from these thunderstorms resulted in moderate flooding of the Poteau River near Panama. The Poteau River near Panama rose above its flood stage of 29 feet at 5:45 am CDT on May 2nd. The river crested at 35.94 feet at 2:30 pm CDT on the 3rd, resulting in moderate flooding. The river fell below flood stage at 2:15 am CDT on the 5th. CSV -201105 23 1445 201105 25 545 51788 308438 OKLAHOMA 40 2011 May Flood C 115 OTTAWA TSA 23-MAY-11 14:45:00 CST-6 25-MAY-11 05:45:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 6 W COMMERCE 3 W COMMERCE 36.93 -94.9786 36.93 -94.9243 An active weather pattern across the Southern Plains resulted in several episodes of locally heavy rainfall over northeastern Oklahoma. This heavy rainfall resulted in moderate flooding along the Neosho River near Commerce. The Neosho River near Commerce rose above its flood stage of 15 feet at 3:45 pm CDT on May 23rd. The river crested at 18.95 feet at 6:00 am CDT on the 24th, resulting in moderate flooding. The river fell below flood stage at 6:45 am CDT on the 25th. CSV -201105 24 830 201105 26 1845 51790 308443 OKLAHOMA 40 2011 May Flood C 21 CHEROKEE TSA 24-MAY-11 08:30:00 CST-6 26-MAY-11 18:45:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 0 N TAHLEQUAH 5 SE TAHLEQUAH 35.92 -94.97 35.8688 -94.9068 An active weather pattern across the Southern Plains resulted in several episodes of locally heavy rainfall over much of northeastern Oklahoma. The excessive rainfall resulted in major flooding of the Illinois River near Tahlequah. The Illinois River near Tahlequah rose above its flood stage of 11 feet at 9:30 am CDT on May 24th. The river crested at 21.12 feet at 4:00 am CDT on the 25th, resulting in major flooding. Very severe flooding occurred from the Chewey bridge downstream to near Tahlequah. Highway 10 was closed between Hanging Rock and No Head Hollow north of the Highway 10 intersection with Highway 62. Several cabin parks were flooded and others were isolated. Monetary damage estimates were not available. The river fell below flood stage at 7:45 pm CDT on the 26th. CSV -201105 24 1920 201105 24 1920 51966 313267 OKLAHOMA 40 2011 May Thunderstorm Wind C 105 NOWATA TSA 24-MAY-11 19:20:00 CST-6 24-MAY-11 19:20:00 0 0 0 0 0.00K 0.00K Mesonet 52 MG \N \N \N 3 SE DELAWARE 3 SE DELAWARE 36.7493 -95.5917 36.7493 -95.5917 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. The Oklahoma Mesonet station southeast of Delaware measured 60 mph thunderstorm wind gusts. CSV -201105 24 1920 201105 24 1920 51966 313266 OKLAHOMA 40 2011 May Thunderstorm Wind C 37 CREEK TSA 24-MAY-11 19:20:00 CST-6 24-MAY-11 19:20:00 0 0 0 0 0.00K 0.00K Amateur Radio 52 EG \N \N \N 0 N MOUNDS 0 N MOUNDS 35.87 -96.07 35.87 -96.07 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. Thunderstorm wind gusts of 60 mph were estimated by amateur radio operators. CSV -201105 24 1925 201105 24 1925 51966 313269 OKLAHOMA 40 2011 May Thunderstorm Wind C 35 CRAIG TSA 24-MAY-11 19:25:00 CST-6 24-MAY-11 19:25:00 0 0 0 0 0.00K 0.00K Storm Chaser 61 EG \N \N \N 11 N CENTRALIA 11 N CENTRALIA 36.9554 -95.3545 36.9554 -95.3545 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. A storm chaser estimated thunderstorm wind gusts in excess of 70 mph. CSV -201106 10 1809 201106 10 1809 53935 323917 VIRGINIA 51 2011 June Thunderstorm Wind C 3 ALBEMARLE LWX 10-JUN-11 18:09:00 EST-5 10-JUN-11 18:09:00 0 0 0 0 1.00K Public 50 EG \N \N \N 2 E RED HILL 2 E RED HILL 37.9662 -78.5756 37.9662 -78.5756 A surface trough combined with moderate amounts of instability to trigger showers and thunderstorms. A few thunderstorms were able to produce large hail and damaging winds across central Virginia. A tree that was eight to twelve inches in diameter was blown down near North Garden. CSV -201106 10 1809 201106 10 1809 53935 323918 VIRGINIA 51 2011 June Thunderstorm Wind C 3 ALBEMARLE LWX 10-JUN-11 18:09:00 EST-5 10-JUN-11 18:09:00 0 0 0 0 1.00K Public 50 EG \N \N \N 2 E RED HILL 2 E RED HILL 37.9646 -78.5769 37.9646 -78.5769 A surface trough combined with moderate amounts of instability to trigger showers and thunderstorms. A few thunderstorms were able to produce large hail and damaging winds across central Virginia. Several branches six to eight inches in diameter were blown down in thunderstorm wind gusts. CSV -201106 9 1315 201106 9 1315 52924 316490 VERMONT 50 2011 June Hail C 7 CHITTENDEN BTV 09-JUN-11 13:15:00 EST-5 09-JUN-11 13:15:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 SW WINOOSKI 1 SW WINOOSKI 44.49 -73.19 44.49 -73.19 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Penny size hail reported. CSV -201106 12 1438 201106 12 1438 54175 324915 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 534 CHESAPEAKE BAY DRUM PT TO SMITH PT VA LWX 12-JUN-11 14:38:00 EST-5 12-JUN-11 14:38:00 0 0 0 0 ASOS 35 MG \N \N \N 1 ESE PATUXENT RIVER ASOS 1 ESE PATUXENT RIVER ASOS 38.2853 -76.3852 38.2853 -76.3852 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 35 knots was measured near Patuxent River. CSV -201106 12 1550 201106 12 1550 54175 324916 ATLANTIC NORTH 88 2011 June Marine Hail Z 530 CHESAPEAKE BAY N OF POOLES IS MD LWX 12-JUN-11 15:50:00 EST-5 12-JUN-11 15:50:00 0 0 0 0 Public 0.75 \N \N \N 3 W PHILLIPS ARMY AIRFIELD 3 W PHILLIPS ARMY AIRFIELD 39.4731 -76.234 39.4731 -76.234 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. Penny sized hail was reported near Phillips Army Field. CSV -201106 12 1640 201106 12 1640 54175 324917 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 536 TIDAL POTOMAC INDIAN HD TO COBB IS MD LWX 12-JUN-11 16:40:00 EST-5 12-JUN-11 16:40:00 0 0 0 0 Trained Spotter 56 EG \N \N \N 10 NE QUANTICO 10 NE QUANTICO 38.6036 -77.178 38.6036 -77.178 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust was estimated to be around 65 mph based off of thunderstorm wind damage near Indian Head. CSV -201104 2 1248 201104 2 1248 51055 302395 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 542 PATUXENT RIVER TO BROOMES ISLAND MD LWX 02-APR-11 12:48:00 EST-5 02-APR-11 12:48:00 0 0 0 0 Buoy 34 MG \N \N \N 0 SSW CHESAPEAKE BIOLOGICAL LABORATORY 0 SSW CHESAPEAKE BIOLOGICAL LABORATORY 38.317 -76.452 38.317 -76.452 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 34 knots was reported at Solomons Island. CSV -201104 2 1358 201104 2 1358 51055 302396 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 02-APR-11 13:58:00 EST-5 02-APR-11 13:58:00 0 0 0 0 Mesonet 34 MG \N \N \N 0 ESE RACCOON POINT 0 ESE RACCOON POINT 38.139 -75.788 38.139 -75.788 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 34 knots was reported at Raccoon Point. CSV -201104 2 1354 201104 2 1354 51055 302398 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 535 TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD LWX 02-APR-11 13:54:00 EST-5 02-APR-11 13:54:00 0 0 0 0 Mesonet 37 MG \N \N \N 0 N WASHINGTON NATIONALS PARK 0 N WASHINGTON NATIONALS PARK 38.87 -77.01 38.87 -77.01 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 37 knots was measured at the Washington Nationals Park. CSV -201104 2 1424 201104 2 1424 51055 302400 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 535 TIDAL POTOMAC KEY BRIDGE TO INDIAN HD MD LWX 02-APR-11 14:24:00 EST-5 02-APR-11 14:24:00 0 0 0 0 Mesonet 37 MG \N \N \N 0 N WASHINGTON NATIONALS PARK 0 N WASHINGTON NATIONALS PARK 38.87 -77.01 38.87 -77.01 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 37 knots was measured at the Washington Nationals Park. CSV -201104 2 1430 201104 2 1430 51055 302402 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 532 CHESAPEAKE BAY SANDY PT TO N BEACH MD LWX 02-APR-11 14:30:00 EST-5 02-APR-11 14:30:00 0 0 0 0 Mesonet 38 MG \N \N \N 13 SSW THOMAS POINT LIGHT 13 SSW THOMAS POINT LIGHT 38.7338 -76.5386 38.7338 -76.5386 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 38 knots was measured at Herring Bay. CSV -201105 24 2035 201105 24 2035 52627 314540 VIRGINIA 51 2011 May Thunderstorm Wind C 25 BRUNSWICK AKQ 24-MAY-11 20:35:00 EST-5 24-MAY-11 20:35:00 0 0 0 0 2.00K 0.00K Law Enforcement 50 EG \N \N \N 1 SE DOLPHIN 1 SE DOLPHIN 36.81 -77.77 36.81 -77.77 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Numerous trees were downed and blocking an intersection. CSV -201105 24 2051 201105 24 2051 52627 314542 VIRGINIA 51 2011 May Thunderstorm Wind C 183 SUSSEX AKQ 24-MAY-11 20:51:00 EST-5 24-MAY-11 20:51:00 0 0 0 0 1.00K 0.00K Law Enforcement 50 EG \N \N \N 4 W PEANUT 4 W PEANUT 36.88 -77.56 36.88 -77.56 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Tree was downed across a road. CSV -201106 1 1331 201106 1 1331 52329 312500 FLORIDA 12 2011 June Hail C 17 CITRUS TBW 01-JUN-11 13:31:00 EST-5 01-JUN-11 13:31:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 N CRYSTAL RIVER 1 N CRYSTAL RIVER 28.91 -82.6 28.91 -82.6 A weak trough settled into the area and allowed for scattered thunderstorms. The enhanced upper energy in place with the trough allowed storms to produce strong gusty winds and large hail. Quarter sized hail was reported near Crystal River. CSV -201106 17 1735 201106 17 1735 51006 301818 NORTH DAKOTA 38 2011 June Funnel Cloud C 73 RANSOM FGF 17-JUN-11 17:35:00 CST-6 17-JUN-11 17:35:00 0 0 0 0 0.00K 0.00K Public \N \N \N \N 4 E FT RANSOM 4 E FT RANSOM 46.52 -97.83 46.52 -97.83 As a surface boundary moved into southeast North Dakota by early in the evening of the 17th, several thunderstorms formed along it. There was a good amount of low level convergence, with southeast winds ahead of the boundary and northwest winds behind it. CSV -201106 7 120 201106 7 125 54216 325095 NORTH DAKOTA 38 2011 June Hail C 71 RAMSEY FGF 07-JUN-11 01:20:00 CST-6 07-JUN-11 01:25:00 0 0 0 0 Public 1 \N \N \N 2 SSW CHURCHS FERRY 2 SSW CHURCHS FERRY 48.24 -99.19 48.24 -99.19 An early morning thunderstorm dropped large hail near Churchs Ferry. The hail fell off and on for about five minutes. CSV -201105 25 2122 201105 25 2122 53097 317643 PENNSYLVANIA 42 2011 May Thunderstorm Wind C 31 CLARION PBZ 25-MAY-11 21:22:00 EST-5 25-MAY-11 21:22:00 0 0 0 0 1.00K 0.00K State Official 50 EG \N \N \N 1 W EAST BRADY 1 W EAST BRADY 40.98 -79.61 40.98 -79.61 Isolated severe thunderstorms developed in an area of instability out ahead of an approaching warm front in northwestern Pennsylvania. A state official reports several trees down. CSV -201106 17 1705 201106 17 1705 51006 325177 NORTH DAKOTA 38 2011 June Funnel Cloud C 73 RANSOM FGF 17-JUN-11 17:05:00 CST-6 17-JUN-11 17:05:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N 6 WSW FT RANSOM 6 WSW FT RANSOM 46.47 -98.03 46.47 -98.03 As a surface boundary moved into southeast North Dakota by early in the evening of the 17th, several thunderstorms formed along it. There was a good amount of low level convergence, with southeast winds ahead of the boundary and northwest winds behind it. A funnel cloud was spotted near the Ransom County line northwest of Englevale. CSV -201106 13 1709 201106 13 1709 51006 325179 NORTH DAKOTA 38 2011 June Funnel Cloud C 73 RANSOM FGF 13-JUN-11 17:09:00 CST-6 13-JUN-11 17:09:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N 7 WNW ENGLEVALE 7 WNW ENGLEVALE 46.45 -98.03 46.45 -98.03 As a surface boundary moved into southeast North Dakota by early in the evening of the 17th, several thunderstorms formed along it. There was a good amount of low level convergence, with southeast winds ahead of the boundary and northwest winds behind it. A persistent wall cloud was reported along with a funnel extending about half way down to the ground. CSV -201106 1 0 201106 30 2359 53640 321363 NEW MEXICO 35 2011 June Drought Z 32 SOUTHERN DESERT EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted and got worse of much of Southern New Mexico during the month of June as the entire area was in exceptional drought by the end of the month. The northeastern corner of Dona Ana County started out in exceptional(D4) drought with the remainder of the area in extreme(D3) drought. By the end of June, the entire area was in exceptional(D4) drought except the far southeast. The COOP at New Mexico State University received 0.35 inches in the month. The yearly rainfall through the month of June at New Mexico State University was only 0.43 inches. CSV -201106 1 0 201106 30 2359 53640 321364 NEW MEXICO 35 2011 June Drought Z 25 SOUTHERN SACRAMENTO MOUNTAINS EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted and got worse of much of Southern New Mexico during the month of June as the entire area was in exceptional drought by the end of the month. The entire Southern Sacramento Mountains were in exceptional(D4) drought through the month of June. The Cloudcroft COOP received 0.68 inches in the month. The yearly rainfall through the month of June in Cloudcroft was 1.58 inches. Normal rainfall through the month of June is 9.18 inches. CSV -201106 29 900 201106 30 2359 54452 327035 OKLAHOMA 40 2011 June Excessive Heat Z 65 OKFUSKEE TSA 29-JUN-11 09:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N A strong ridge of high pressure in the middle and upper atmosphere redeveloped across the south central United States resulting in strong subsidence over the region. High temperatures climbed into the mid 90s to near 103 under mostly clear skies. This heat combined with fairly high relative humidity values resulted in afternoon heat index values, or apparent temperatures, in the 105 to 110 degree range. Very little relief was realized during the overnight period as temperatures only fell into the mid to upper 70s. This period of excessive heat continued into July. CSV -201106 29 900 201106 30 2359 54452 327036 OKLAHOMA 40 2011 June Excessive Heat Z 66 OKMULGEE TSA 29-JUN-11 09:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N A strong ridge of high pressure in the middle and upper atmosphere redeveloped across the south central United States resulting in strong subsidence over the region. High temperatures climbed into the mid 90s to near 103 under mostly clear skies. This heat combined with fairly high relative humidity values resulted in afternoon heat index values, or apparent temperatures, in the 105 to 110 degree range. Very little relief was realized during the overnight period as temperatures only fell into the mid to upper 70s. This period of excessive heat continued into July. CSV -201106 29 900 201106 30 2359 54452 327037 OKLAHOMA 40 2011 June Excessive Heat Z 67 WAGONER TSA 29-JUN-11 09:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N A strong ridge of high pressure in the middle and upper atmosphere redeveloped across the south central United States resulting in strong subsidence over the region. High temperatures climbed into the mid 90s to near 103 under mostly clear skies. This heat combined with fairly high relative humidity values resulted in afternoon heat index values, or apparent temperatures, in the 105 to 110 degree range. Very little relief was realized during the overnight period as temperatures only fell into the mid to upper 70s. This period of excessive heat continued into July. CSV -201106 20 1300 201106 21 1600 51605 306711 LOUISIANA 22 2011 June Wildfire Z 10 DE SOTO SHV 20-JUN-11 13:00:00 CST-6 21-JUN-11 16:00:00 1 0 0 0 20.00K Broadcast Media \N \N \N \N \N \N \N \N \N \N Strong south winds gusting upwards of 30 mph, combined with drought conditions across Northwest Louisiana and a downed powerline from the strong wind gusts resulted in a large forest fire in southern DeSoto Parish. A forest fire, started by a downed powerline which ignited dry fuels across the southern portion of DeSoto Parish in Northwest Louisiana spread quickly because of low humidity and strong south winds gusting upwards of 30 mph. Just after 2 p.m. crews from fire districts in DeSoto Parish, north Sabine Parish and across the state line in Texas were dispatched to an area off of New Benson Road, south of Mansfield.|About a dozen homes were evacuated as a precaution, although none were burned.||The fire, which burned hundreds of acres, is believed to have been started by a downed power line that sparked. High winds are blamed for downing the line.|The fire jumped a road at one point, leading to evacuations of people as well as moving some livestock. Fire lines were dug at that point. One fire fighter was treated for mild smoke inhalation at the scene. CSV -201106 12 1614 201106 12 1634 54175 324922 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 538 PATAPSCO RIVER INCLUDING BALTIMORE HARBOR LWX 12-JUN-11 16:14:00 EST-5 12-JUN-11 16:34:00 0 0 0 0 Mesonet 35 MG \N \N \N 0 S BALTIMORE CITY 0 S BALTIMORE CITY 39.2752 -76.5899 39.2752 -76.5899 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 35 knots was reported at Tide Point. CSV -201106 12 1612 201106 12 1624 54175 324923 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 538 PATAPSCO RIVER INCLUDING BALTIMORE HARBOR LWX 12-JUN-11 16:12:00 EST-5 12-JUN-11 16:24:00 0 0 0 0 Buoy 34 MG \N \N \N 1 SE BALTIMORE CITY 1 SE BALTIMORE CITY 39.267 -76.578 39.267 -76.578 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 34 knots was reported at the Baltimore Buoy. CSV -201106 12 1619 201106 12 1619 54175 324924 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 538 PATAPSCO RIVER INCLUDING BALTIMORE HARBOR LWX 12-JUN-11 16:19:00 EST-5 12-JUN-11 16:19:00 0 0 0 0 Mesonet 35 MG \N \N \N 1 ENE BALTIMORE CITY 1 ENE BALTIMORE CITY 39.2859 -76.5763 39.2859 -76.5763 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 35 knots was measured at the Hampstead Elementary School. CSV -201106 12 1707 201106 12 1717 54175 324925 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 532 CHESAPEAKE BAY SANDY PT TO N BEACH MD LWX 12-JUN-11 17:07:00 EST-5 12-JUN-11 17:17:00 0 0 0 0 Mesonet 37 MG \N \N \N 0 SE TOLLY POINT 0 SE TOLLY POINT 38.9358 -76.4361 38.9358 -76.4361 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 37 knots was reported at Tolly Point. CSV -201106 12 1710 201106 12 1710 54175 324926 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 532 CHESAPEAKE BAY SANDY PT TO N BEACH MD LWX 12-JUN-11 17:10:00 EST-5 12-JUN-11 17:10:00 0 0 0 0 Buoy 37 MG \N \N \N 0 S ANNAPOLIS 0 S ANNAPOLIS 38.9759 -76.481 38.9759 -76.481 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 37 knots was reported at the Annapolis Buoy. CSV -201106 12 1800 201106 12 1800 54175 324927 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 532 CHESAPEAKE BAY SANDY PT TO N BEACH MD LWX 12-JUN-11 18:00:00 EST-5 12-JUN-11 18:00:00 0 0 0 0 Buoy 36 MG \N \N \N 0 N THOMAS POINT LIGHT 0 N THOMAS POINT LIGHT 38.9 -76.44 38.9 -76.44 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 36 knots was reported at the Thomas Point Lighthouse. CSV -201106 1 0 201106 30 2359 53640 321370 NEW MEXICO 35 2011 June Drought Z 24 TULAROSA BASIN/SOUTHERN DESERT EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted and got worse of much of Southern New Mexico during the month of June as the entire area was in exceptional drought by the end of the month. All of Otero County except the far southwest portion started out in exceptional(D4) drought and remained there through the month. The Alamogordo airport only received 0.03 inches of precipitation in the month. The yearly rainfall through the month of June at the Alamogordo airport was only 0.09 inches. CSV -201106 1 0 201106 30 2359 53643 321372 TEXAS 48 2011 June Drought Z 55 EL PASO EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted across Far West Texas during the month of June as the entire area was in exceptional or extreme drought through the month. All of El Paso County remained in extreme(D3) drought through the month of June. The El Paso airport received 0.05 inches of precipitation during the month. The yearly precipitation at the El Paso airport was 0.16 inches. The precipitation in the early part of the month broke a stretch of 119 consecutive days without measurable precipitation at the airport. CSV -201106 1 0 201106 30 2359 53643 321378 TEXAS 48 2011 June Drought Z 56 HUDSPETH EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted across Far West Texas during the month of June as the entire area was in exceptional or extreme drought through the month. The western half of Hudspeth County remained in extreme(D3) drought through the month of June while the eastern half was in exceptional(D4) drought. The Fort Hancock COOP received 0.18 inches of precipitation during the month which was the first measurable precipitation recorded there for the year. CSV -201106 1 1730 201106 1 1735 54165 324846 NEW MEXICO 35 2011 June Thunderstorm Wind C 13 DONA ANA EPZ 01-JUN-11 17:30:00 MST-7 01-JUN-11 17:35:00 0 0 0 0 0.00K 0.00K Mesonet 50 MG \N \N \N 4 W ORGAN 4 W ORGAN 32.4212 -106.6718 32.4212 -106.6718 An upper trough was moving onshore while a strong ridge was located over the eastern United States. This setup a moist southerly flow at mid-levels and a dry line was located over the Rio Grande Valley, allowing for severe thunderstorms to develop. A 58 mph wind gust was reported 4 miles west of Organ at a New Mexico Environment Department Mesonet site. CSV -201106 1 1755 201106 1 1800 54165 324847 NEW MEXICO 35 2011 June Thunderstorm Wind C 35 OTERO EPZ 01-JUN-11 17:55:00 MST-7 01-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K ASOS 52 MG \N \N \N 9 S DESERT 9 S DESERT 32.0712 -106.1527 32.0712 -106.1527 An upper trough was moving onshore while a strong ridge was located over the eastern United States. This setup a moist southerly flow at mid-levels and a dry line was located over the Rio Grande Valley, allowing for severe thunderstorms to develop. The KQMG ASOS reported a wind gust of 60 mph. CSV -201106 5 1350 201106 5 1350 53240 318498 TENNESSEE 47 2011 June Thunderstorm Wind C 87 JACKSON OHX 05-JUN-11 13:50:00 CST-6 05-JUN-11 13:50:00 0 0 0 0 5.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N BURRISTOWN 0 N BURRISTOWN 36.38 -85.53 36.38 -85.53 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Trees were blown down with other wind damage throughout Jackson County. CSV -201105 12 1702 201105 12 1702 51945 309542 OKLAHOMA 40 2011 May Hail C 135 SEQUOYAH TSA 12-MAY-11 17:02:00 CST-6 12-MAY-11 17:02:00 0 0 0 0 5.00K 0.00K Trained Spotter 1.5 \N \N \N 0 N SALLISAW 0 N SALLISAW 35.47 -94.8 35.47 -94.8 A cold front moved into and across the region during the afternoon and evening of the 12th. A warm, moist, and unstable air mass existed over eastern Oklahoma ahead of the front. Thunderstorms developed along and ahead of the front during the afternoon and continued to affect eastern Oklahoma through the evening. The stronger storms produced large hail up to baseball size and damaging wind gusts. CSV -201105 12 1705 201105 12 1705 51945 309544 OKLAHOMA 40 2011 May Hail C 1 ADAIR TSA 12-MAY-11 17:05:00 CST-6 12-MAY-11 17:05:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 SSW BARON 1 SSW BARON 35.9066 -94.6268 35.9066 -94.6268 A cold front moved into and across the region during the afternoon and evening of the 12th. A warm, moist, and unstable air mass existed over eastern Oklahoma ahead of the front. Thunderstorms developed along and ahead of the front during the afternoon and continued to affect eastern Oklahoma through the evening. The stronger storms produced large hail up to baseball size and damaging wind gusts. CSV -201105 12 1705 201105 12 1705 51945 309545 OKLAHOMA 40 2011 May Hail C 115 OTTAWA TSA 12-MAY-11 17:05:00 CST-6 12-MAY-11 17:05:00 0 0 0 0 20.00K 0.00K Trained Spotter 1.75 \N \N \N 0 N FAIRLAND 0 N FAIRLAND 36.75 -94.85 36.75 -94.85 A cold front moved into and across the region during the afternoon and evening of the 12th. A warm, moist, and unstable air mass existed over eastern Oklahoma ahead of the front. Thunderstorms developed along and ahead of the front during the afternoon and continued to affect eastern Oklahoma through the evening. The stronger storms produced large hail up to baseball size and damaging wind gusts. CSV -201105 12 1705 201105 12 1705 51945 309546 OKLAHOMA 40 2011 May Hail C 135 SEQUOYAH TSA 12-MAY-11 17:05:00 CST-6 12-MAY-11 17:05:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.25 \N \N \N 2 ESE SALLISAW 2 ESE SALLISAW 35.4589 -94.7672 35.4589 -94.7672 A cold front moved into and across the region during the afternoon and evening of the 12th. A warm, moist, and unstable air mass existed over eastern Oklahoma ahead of the front. Thunderstorms developed along and ahead of the front during the afternoon and continued to affect eastern Oklahoma through the evening. The stronger storms produced large hail up to baseball size and damaging wind gusts. CSV -201105 24 2058 201105 24 2058 51966 313285 OKLAHOMA 40 2011 May Hail C 23 CHOCTAW TSA 24-MAY-11 20:58:00 CST-6 24-MAY-11 20:58:00 0 0 0 0 5.00K 0.00K Public 1.5 \N \N \N 2 S HUGO 2 S HUGO 33.9911 -95.52 33.9911 -95.52 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. CSV -201102 7 400 201102 7 800 46733 271271 ARKANSAS 5 2011 February Winter Weather Z 14 STONE LZK 07-FEB-11 04:00:00 CST-6 07-FEB-11 08:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 200 201102 7 500 46733 271273 ARKANSAS 5 2011 February Winter Weather Z 13 SEARCY LZK 07-FEB-11 02:00:00 CST-6 07-FEB-11 05:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 0 201102 7 400 46733 271274 ARKANSAS 5 2011 February Winter Weather Z 12 NEWTON LZK 07-FEB-11 00:00:00 CST-6 07-FEB-11 04:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 100 201102 7 500 46733 271297 ARKANSAS 5 2011 February Winter Weather Z 22 POPE LZK 07-FEB-11 01:00:00 CST-6 07-FEB-11 05:00:00 0 0 0 0 0.00K 0.00K ASOS \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 400 201102 7 600 46733 271298 ARKANSAS 5 2011 February Winter Weather Z 23 VAN BUREN LZK 07-FEB-11 04:00:00 CST-6 07-FEB-11 06:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 500 201102 7 900 46733 271299 ARKANSAS 5 2011 February Winter Weather Z 24 CLEBURNE LZK 07-FEB-11 05:00:00 CST-6 07-FEB-11 09:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201103 28 2257 201103 28 2257 48332 282289 GULF OF MEXICO 85 2011 March Marine Thunderstorm Wind Z 52 OCEAN REEF TO CRAIG KEY FL OUT 20NM KEY 28-MAR-11 22:57:00 EST-5 28-MAR-11 22:57:00 0 0 0 0 0.00K 0.00K C-MAN Station 34 MG \N \N \N 7 SE KEY LARGO 7 SE KEY LARGO 25.01 -80.38 25.01 -80.38 A line of thunderstorms developed along a strong outflow boundary moving rapidly south across the Florida Keys. Numerous gale-force wind gusts were measured in the Florida Keys and surrounding coastal waters. The U.S. Coast Guard Sector Key West responded to seven cases as a result of the high winds and seas. A wind gust of 34 knots (39 mph) was measured at Molasses Reef Light. CSV -201103 28 2200 201103 28 2200 48332 282290 GULF OF MEXICO 85 2011 March Marine Thunderstorm Wind Z 31 FLORIDA BAY KEY 28-MAR-11 22:00:00 EST-5 28-MAR-11 22:00:00 0 0 0 0 0.00K 0.00K Coast Guard 35 EG \N \N \N 13 W MARATHON 13 W MARATHON 24.6764 -81.2872 24.6764 -81.2872 A line of thunderstorms developed along a strong outflow boundary moving rapidly south across the Florida Keys. Numerous gale-force wind gusts were measured in the Florida Keys and surrounding coastal waters. The U.S. Coast Guard Sector Key West responded to seven cases as a result of the high winds and seas. A vessel with 2 persons on board was reported sinking between Bahia Honda Key and Big Pine Key. CSV -201103 28 2225 201103 28 2225 48332 282291 GULF OF MEXICO 85 2011 March Marine Thunderstorm Wind Z 32 GULF SIDE OF THE LOWER KEYS OUT 20NM KEY 28-MAR-11 22:25:00 EST-5 28-MAR-11 22:25:00 0 0 0 0 0.00K 0.00K Coast Guard 35 EG \N \N \N 3 WNW KEY WEST 3 WNW KEY WEST 24.5668 -81.8063 24.5668 -81.8063 A line of thunderstorms developed along a strong outflow boundary moving rapidly south across the Florida Keys. Numerous gale-force wind gusts were measured in the Florida Keys and surrounding coastal waters. The U.S. Coast Guard Sector Key West responded to seven cases as a result of the high winds and seas. A sailing vessel anchored with one person asleep on board broke free from its mooring and drifted into Key West Harbor. CSV -201101 1 0 201101 31 2359 47967 279884 ALABAMA 1 2011 January Drought Z 48 RUSSELL BMX 01-JAN-11 00:00:00 CST-6 31-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Several storm systems brought precipitation to Central Alabama during the month of January, with rainfall totals of one to five inches. However, the monthly totals were below normal. Despite the rainfall, there was no significant change in drought conditions. Severe drought (D2) conditions persisted to the right of a line from Goshen to Mount Meigs to Santuck to Alexander City to Wadley to Rock Mills. CSV -201102 10 749 201102 10 1700 48186 281389 ALASKA 2 2011 February Winter Storm Z 29 MISTY FJORDS AJK 10-FEB-11 07:49:00 AKST-9 10-FEB-11 17:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Snow and Brief freezing rain hit the Misty Fiords area on 2/10 as the flow aloft became moist and switched to south over cold air. Hyder got nearly a foot on 2/10. Hyder measured 11.5 inches new snow for 24 hours ending at 0800 AKST on 2/10. They got an additional 2.5 inches later in the day. CSV -201101 20 600 201101 21 0 48031 280434 OHIO 39 2011 January Winter Weather Z 44 LOGAN ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter in Quincy measured 3.5 inches of snow while the county garage in Bellefontaine measured 3 inches. CSV -201101 20 600 201101 21 0 48031 280435 OHIO 39 2011 January Winter Weather Z 42 DARKE ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter in Arcanum measured 5.3 inches of snowfall. The ODOT garage 1 mile east of Greenville measured 4 inches, while a spotter south of Greenville measured 3.5 inches. CSV -201101 20 600 201101 21 0 48031 280436 OHIO 39 2011 January Winter Weather Z 60 PREBLE ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT garage 3 miles east of Eaton measured 4.3 inches, while a spotter in town measured 4 inches. CSV -201101 25 2000 201101 26 1300 48224 281631 CALIFORNIA 6 2011 January Dense Fog Z 89 W CENTRAL S.J. VALLEY HNX 25-JAN-11 20:00:00 PST-8 26-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N A mid-level atmospheric disturbance that tracked across central California during the late afternoon and early evening of January 17th squeezed some drizzle out of the stratus, but the layer remained intact. The stratus persisted through the 18th before an upper-level trough brought some clearing to the west side of the San Joaquin Valley during the morning of January 19th. An offshore flow developed over California on the 20th, drying the airmass over the San Joaquin Valley and breaking up the stratus.||Although the fog and stratus kept central and southern San Joaquin Valley temperatures near or below normal, mountain and desert locations once again experienced above normal temperatures. Once the stratus broke up, central and south Valley temperatures also warmed to above normal for a few days before sufficient moisture had evaporated and resaturated the lowest levels of the atmosphere. While dense fog had been a nightly occurrence since January 21st, by the 24th, the fog was lingering well into the late morning with only partial afternoon clearing. Locations experienced near zero visibility at times during most of late January. This persistent dense fog continued for the next several days, affecting air travel into and out of the San Joaquin Valley and keeping high temperatures well below normal. CSV -201101 25 2200 201101 26 700 46474 269392 KENTUCKY 21 2011 January Heavy Snow Z 77 ADAIR LMK 25-JAN-11 22:00:00 CST-6 26-JAN-11 07:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N During the overnight hours on the 25th and the 26th of January, a strengthening closed low moved across Tennessee. North of this upper air system, a surface trough moved east across the Commonwealth, changing rain to snow. Snow, heavy at times, developed by late evening across west central Kentucky. A broad area of 3 to 5 inches of snow accumulated during the early morning hours across an area generally just west of Interstate 65. Snow amounts diminished east of Interstate 65 as precipitation remained rain well into the early morning hours. Snow continued until dawn within an arc from Bowling Green through southern Louisville through Frankfort as the back edge of an area of wrap-around snow moved east across the state. Four inches of snow fell at Lewisport. CSV -201101 25 2300 201101 26 700 46474 269394 KENTUCKY 21 2011 January Heavy Snow Z 24 BRECKINRIDGE LMK 25-JAN-11 23:00:00 EST-5 26-JAN-11 07:00:00 0 0 0 0 0.00K 0.00K Broadcast Media \N \N \N \N \N \N \N \N \N \N During the overnight hours on the 25th and the 26th of January, a strengthening closed low moved across Tennessee. North of this upper air system, a surface trough moved east across the Commonwealth, changing rain to snow. Snow, heavy at times, developed by late evening across west central Kentucky. A broad area of 3 to 5 inches of snow accumulated during the early morning hours across an area generally just west of Interstate 65. Snow amounts diminished east of Interstate 65 as precipitation remained rain well into the early morning hours. Snow continued until dawn within an arc from Bowling Green through southern Louisville through Frankfort as the back edge of an area of wrap-around snow moved east across the state. Around 4 inches of snow accumulated across western portions of Breckinridge County. CSV -201101 20 600 201101 21 0 48031 280437 OHIO 39 2011 January Winter Weather Z 51 MIAMI ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter in Tipp City measured 5.8 inches of snow. Other spotters in Covington and 1 mile northeast of Troy measured 4 inches. CSV -201101 20 600 201101 21 0 48031 280439 OHIO 39 2011 January Winter Weather Z 61 MONTGOMERY ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter in Vandalia measured 5.5 inches of snow, while another in Union measured 5.2 inches. A NWS employee measured 5 inches 3 miles south of Miamisburg, while 4.7 and 4.6 inches were measured by spotters in Centerville and Dayton. The KDAY airport received 4.1 inches. CSV -201108 18 1752 201108 18 1752 57162 342403 MARYLAND 24 2011 August Hail C 3 ANNE ARUNDEL LWX 18-AUG-11 17:52:00 EST-5 18-AUG-11 17:52:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 E MARYLAND CITY 1 E MARYLAND CITY 39.0998 -76.809 39.0998 -76.809 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported near Laurel. CSV -201108 18 1820 201108 18 1820 57162 342404 MARYLAND 24 2011 August Hail C 3 ANNE ARUNDEL LWX 18-AUG-11 18:20:00 EST-5 18-AUG-11 18:20:00 0 0 0 0 Public 1 \N \N \N 1 N MARLEY 1 N MARLEY 39.1664 -76.6024 39.1664 -76.6024 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported at Glen Burnie. CSV -201101 1 1139 201101 1 1150 45950 266451 TENNESSEE 47 2011 January High Wind Z 87 SOUTHEAST MONROE MRX 01-JAN-11 11:39:00 EST-5 01-JAN-11 11:50:00 0 0 0 0 5.00K 0.00K Law Enforcement 52 EG \N \N \N \N \N \N \N \N \N Strong southwest gradient winds occurred across portions of east Tennessee in advance of a cold front. These high winds produced some minor damage across the area. High winds downed a tree near Vonore. CSV -201101 1 1030 201101 1 1100 45950 266453 TENNESSEE 47 2011 January Flood C 139 POLK MRX 01-JAN-11 10:30:00 EST-5 01-JAN-11 11:00:00 0 0 0 0 5.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 10 NW DUCKTOWN 3 SSW HAMBRIGHT 35.1323 -84.5051 35.1337 -84.4917 Strong southwest gradient winds occurred across portions of east Tennessee in advance of a cold front. These high winds produced some minor damage across the area. Heavy rain produced a rock slide along highway 64. CSV -201101 7 500 201101 7 900 46392 268940 TENNESSEE 47 2011 January Heavy Snow Z 18 JOHNSON MRX 07-JAN-11 05:00:00 EST-5 07-JAN-11 09:00:00 0 0 0 0 Law Enforcement \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachians generating light to moderate snowfall over the region. The event transitioned into a northwest flow snowfall across the higher terrain areas. A snow depth of 4 inches was estimated at Mountain City. CSV -201101 7 200 201101 7 600 46395 268951 VIRGINIA 51 2011 January Heavy Snow Z 1 LEE MRX 07-JAN-11 02:00:00 EST-5 07-JAN-11 06:00:00 0 0 0 0 Law Enforcement \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachian Mountains generating light to moderate snowfall. A snow depth of 3.5 inches of snow was estimated to have fallen three miles west of Jonesville. CSV -201101 8 300 201101 8 700 46392 268956 TENNESSEE 47 2011 January Heavy Snow Z 38 GRAINGER MRX 08-JAN-11 03:00:00 EST-5 08-JAN-11 07:00:00 0 0 0 0 Mesonet \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachians generating light to moderate snowfall over the region. The event transitioned into a northwest flow snowfall across the higher terrain areas. A snow depth of 5.6 inches was measured three miles west of Rutledge. CSV -201108 6 2050 201108 6 2300 56921 340975 VIRGINIA 51 2011 August Flash Flood C 47 CULPEPER LWX 06-AUG-11 20:50:00 EST-5 06-AUG-11 23:00:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 0 WNW CULPEPER 2 SW CULPEPER 38.4818 -78.0075 38.4532 -78.0258 A slow eastward-moving surface boundary in association with a broad upper level trough over the Ohio Valley progressed across the Blue Ridge during the afternoon and evening. Thunderstorms trained northward along the boundary, repeatedly over the same area in Culpeper County. Torrential rains produced flash flooding in portions of the county. A maximum measured rainfall total of 7.9 inches was reported near Winston. Numerous road closures were reported in Culpeper County. A rain gage in Culpeper measured 4.58 inches. CSV -201108 6 2100 201108 6 2300 56921 340976 VIRGINIA 51 2011 August Flash Flood C 47 CULPEPER LWX 06-AUG-11 21:00:00 EST-5 06-AUG-11 23:00:00 0 0 0 0 0.00K 0.00K Public \N Heavy Rain \N \N \N 1 E WHITE SHOP 1 ESE WHITE SHOP 38.43 -78.05 38.4248 -78.0439 A slow eastward-moving surface boundary in association with a broad upper level trough over the Ohio Valley progressed across the Blue Ridge during the afternoon and evening. Thunderstorms trained northward along the boundary, repeatedly over the same area in Culpeper County. Torrential rains produced flash flooding in portions of the county. A maximum measured rainfall total of 7.9 inches was reported near Winston. The public reported a bridge was washed out on Spring Creek Drive. A nearby spotter observed 6.85 inches of rain. CSV -201108 6 2130 201108 6 2300 56921 340977 VIRGINIA 51 2011 August Flash Flood C 47 CULPEPER LWX 06-AUG-11 21:30:00 EST-5 06-AUG-11 23:00:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 2 SSE CULPEPER 2 SW INLET 38.45 -77.98 38.4542 -77.954 A slow eastward-moving surface boundary in association with a broad upper level trough over the Ohio Valley progressed across the Blue Ridge during the afternoon and evening. Thunderstorms trained northward along the boundary, repeatedly over the same area in Culpeper County. Torrential rains produced flash flooding in portions of the county. A maximum measured rainfall total of 7.9 inches was reported near Winston. Water rescue was performed for vehicle caught in flood waters. A nearby rain gage recorded 4.37 inches. CSV -201108 18 1809 201108 18 1809 57162 342405 MARYLAND 24 2011 August Hail C 3 ANNE ARUNDEL LWX 18-AUG-11 18:09:00 EST-5 18-AUG-11 18:09:00 0 0 0 0 Broadcast Media 1 \N \N \N 1 N PIONEER CITY 1 N PIONEER CITY 39.14 -76.72 39.14 -76.72 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported near Severn. CSV -201108 18 1807 201108 18 1807 57162 342406 MARYLAND 24 2011 August Hail C 3 ANNE ARUNDEL LWX 18-AUG-11 18:07:00 EST-5 18-AUG-11 18:07:00 0 0 0 0 Broadcast Media 1 \N \N \N 1 W PIONEER CITY 1 W PIONEER CITY 39.13 -76.73 39.13 -76.73 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported at Fort Meade. CSV -201107 21 1300 201107 21 1700 56291 337501 VIRGINIA 51 2011 July Excessive Heat Z 57 KING GEORGE LWX 21-JUL-11 13:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices were estimated to be in excess of 110 degrees based on observations nearby. CSV -201107 21 1300 201107 21 1700 56291 337505 VIRGINIA 51 2011 July Excessive Heat Z 502 SOUTHERN FAUQUIER LWX 21-JUL-11 13:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices were estimated to be in excess of 110 degrees based on observations nearby. CSV -201107 21 1500 201107 21 1800 56291 337511 VIRGINIA 51 2011 July Heat Z 28 FREDERICK LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 AWOS \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices up to 106 degrees were reported at Winchester. CSV -201107 21 1500 201107 21 1800 56291 337517 VIRGINIA 51 2011 July Heat Z 30 WARREN LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201108 6 2130 201108 6 2300 56921 340978 VIRGINIA 51 2011 August Flash Flood C 47 CULPEPER LWX 06-AUG-11 21:30:00 EST-5 06-AUG-11 23:00:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 1 S CULPEPER 1 E CULPEPER 38.47 -78 38.4827 -77.9824 A slow eastward-moving surface boundary in association with a broad upper level trough over the Ohio Valley progressed across the Blue Ridge during the afternoon and evening. Thunderstorms trained northward along the boundary, repeatedly over the same area in Culpeper County. Torrential rains produced flash flooding in portions of the county. A maximum measured rainfall total of 7.9 inches was reported near Winston. Two separate rescues were conducted from vehicles trapped in flood waters. CSV -201108 13 1413 201108 13 1500 56922 340979 WEST VIRGINIA 54 2011 August Flash Flood C 3 BERKELEY LWX 13-AUG-11 14:13:00 EST-5 13-AUG-11 15:00:00 0 0 0 0 0.00K 0.00K Public \N Heavy Rain \N \N \N 1 N MARTINSBURG 1 W BLAIRTON 39.46 -77.97 39.453 -77.9429 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. High rainfall rates from training thunderstorms in an urban area create an isolated flash flood evening in Berkeley County. Rainfall amounts of up to 1.5 inches were observed in less than an hour in Martinsburg. Numerous roadways were reported to have water of depth greater than 6 inches flowing across them. A nearby spotter measured 1.32 inches. CSV -201107 13 1617 201107 13 1617 55826 334597 VIRGINIA 51 2011 July Thunderstorm Wind C 177 SPOTSYLVANIA LWX 13-JUL-11 16:17:00 EST-5 13-JUL-11 16:17:00 0 0 0 0 1.00K State Official 45 EG \N \N \N 2 WSW LEAVELLS 2 WSW LEAVELLS 38.2338 -77.559 38.2338 -77.559 A cold front passed through northern and central Virginia on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. A tree fell onto the intersection of Courthouse Road and Smith Station Road. CSV -201107 13 1625 201107 13 1625 55826 334599 VIRGINIA 51 2011 July Thunderstorm Wind C 177 SPOTSYLVANIA LWX 13-JUL-11 16:25:00 EST-5 13-JUL-11 16:25:00 0 0 0 0 1.00K State Official 52 EG \N \N \N 3 NE CDENORA 3 NE CDENORA 38.113 -77.7702 38.113 -77.7702 A cold front passed through northern and central Virginia on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. A tree fell onto the intersection of Courthouse Road and Lewistown Road. CSV -201107 13 1510 201107 13 1510 55831 334601 MARYLAND 24 2011 July Thunderstorm Wind C 17 CHARLES LWX 13-JUL-11 15:10:00 EST-5 13-JUL-11 15:10:00 0 0 0 0 State Official 52 EG \N \N \N 0 SSW POMFRET 0 SSW POMFRET 38.5772 -77.0308 38.5772 -77.0308 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. Multiple trees were down. CSV -201107 13 1515 201107 13 1515 55831 334602 MARYLAND 24 2011 July Thunderstorm Wind C 17 CHARLES LWX 13-JUL-11 15:15:00 EST-5 13-JUL-11 15:15:00 0 0 0 0 5.00K Trained Spotter 56 EG \N \N \N 1 SW IRONSIDES 1 SW IRONSIDES 38.4917 -77.16 38.4917 -77.16 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. Several trees were down around Ironsides. CSV -201107 13 1515 201107 13 1515 55831 334603 MARYLAND 24 2011 July Thunderstorm Wind C 17 CHARLES LWX 13-JUL-11 15:15:00 EST-5 13-JUL-11 15:15:00 0 0 0 0 5.00K Trained Spotter 52 EG \N \N \N 1 ENE LA PLATA 1 ENE LA PLATA 38.5341 -76.9705 38.5341 -76.9705 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. Numerous trees were down around La Plata. CSV -201107 13 1539 201107 13 1539 55831 334604 MARYLAND 24 2011 July Thunderstorm Wind C 17 CHARLES LWX 13-JUL-11 15:39:00 EST-5 13-JUL-11 15:39:00 0 0 0 0 2.00K State Official 56 EG \N \N \N 0 SW NEWBURG 0 SW NEWBURG 38.3772 -76.9536 38.3772 -76.9536 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. Multiple trees were down around Newburg. CSV -201107 13 1539 201107 13 1539 55831 334605 MARYLAND 24 2011 July Thunderstorm Wind C 37 ST. MARY'S LWX 13-JUL-11 15:39:00 EST-5 13-JUL-11 15:39:00 0 0 0 0 1.00K State Official 52 EG \N \N \N 0 NW BUDDS CREEK 0 NW BUDDS CREEK 38.402 -76.8325 38.402 -76.8325 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. A tree was down near the intersection of Budds Creek Road and Thompsons Corner Road. CSV -201107 6 1320 201107 6 1322 51781 308369 SOUTH CAROLINA 45 2011 July Hail C 39 FAIRFIELD CAE 06-JUL-11 13:20:00 EST-5 06-JUL-11 13:22:00 0 0 0 0 Public 0.88 \N \N \N 2 E MONTICELLO 2 E MONTICELLO 34.35 -81.27 34.35 -81.27 Numerous showers and thunderstorms developed across the region ahead of a weak frontal boundary. A few of these storms became severe and also produced locally heavy rain. Public reported nickel size hail. CSV -201102 21 1600 201102 22 600 48607 284404 PENNSYLVANIA 42 2011 February Heavy Snow Z 23 INDIANA PBZ 21-FEB-11 16:00:00 EST-5 22-FEB-11 06:00:00 0 0 0 0 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N Low pressure moving along a stalled front turned mixed precipitation to heavy wet snow the afternoon of the 21st across eastern Ohio, western Pennsylvania, and the northern panhandle of West Virginia. The snow continued into the early morning of the 22nd. Snowfall rates up to 2 inches an hour produced storm totals of 6 to 10 inches across the region. Much of the snow fell during the evening rush hour from Steubenville, Ohio east to Pittsburgh and Greensburg, Pennsylvania bringing the evening commute to a standstill. Numerous cars were abandoned on roadways with some travelers spending nearly 8 hours to reach their destinations. Pockets of freezing rain were south of the area of heavy snow with more than one quarter of an inch of ice reported in Preston county West Virginia. CSV -201107 3 1638 201107 3 1638 55531 334153 VIRGINIA 51 2011 July Thunderstorm Wind C 107 LOUDOUN LWX 03-JUL-11 16:38:00 EST-5 03-JUL-11 16:38:00 0 0 1 0 Park/Forest Service 56 EG \N \N \N 3 ESE LEESBURG 3 ESE LEESBURG 39.1081 -77.4924 39.1081 -77.4924 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. A fatality occurred when a tree fell onto a cyclist along the C and O Canal Towpath. The location along the Towpath was south of Whites Ferry along mile marker 33. CSV -201107 3 1722 201107 3 1722 55531 334155 VIRGINIA 51 2011 July Thunderstorm Wind C 13 ARLINGTON LWX 03-JUL-11 17:22:00 EST-5 03-JUL-11 17:22:00 0 0 0 0 1.00K Emergency Manager 61 EG \N \N \N 1 NW BARCROFT 1 NW BARCROFT 38.9139 -77.1454 38.9139 -77.1454 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. Tree damage was reported along Old Dominion Drive at the Fairfax County Line. CSV -201107 3 1722 201107 3 1722 55531 334157 VIRGINIA 51 2011 July Thunderstorm Wind C 13 ARLINGTON LWX 03-JUL-11 17:22:00 EST-5 03-JUL-11 17:22:00 0 0 0 0 1.00K Emergency Manager 61 EG \N \N \N 2 N BARCROFT 2 N BARCROFT 38.9245 -77.1264 38.9245 -77.1264 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. Tree damage was reported along the 4400 Block of N. Glebe Road. CSV -201107 3 1724 201107 3 1724 55531 334160 VIRGINIA 51 2011 July Thunderstorm Wind C 107 LOUDOUN LWX 03-JUL-11 17:24:00 EST-5 03-JUL-11 17:24:00 0 0 0 0 5.00K Broadcast Media 61 EG \N \N \N 2 W NORTH FORK 2 W NORTH FORK 39.0736 -77.7578 39.0736 -77.7578 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. Several trees were snapped and uprooted in Airmont Farms. CSV -201104 14 1521 201104 14 1521 48744 285050 OKLAHOMA 40 2011 April Hail C 99 MURRAY OUN 14-APR-11 15:21:00 CST-6 14-APR-11 15:21:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.25 \N \N \N 0 N HICKORY 0 N HICKORY 34.56 -96.86 34.56 -96.86 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201104 14 1523 201104 14 1523 48744 285052 OKLAHOMA 40 2011 April Hail C 81 LINCOLN OUN 14-APR-11 15:23:00 CST-6 14-APR-11 15:23:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 0 N SPARKS 0 N SPARKS 35.61 -96.82 35.61 -96.82 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201106 9 1314 201106 9 1314 52924 316489 VERMONT 50 2011 June Hail C 21 RUTLAND BTV 09-JUN-11 13:14:00 EST-5 09-JUN-11 13:14:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 SW PROCTOR 1 SW PROCTOR 43.66 -73.04 43.66 -73.04 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Quarter size hail reported. CSV -201106 29 1422 201106 29 1434 54530 327479 IDAHO 16 2011 June Thunderstorm Wind C 7 BEAR LAKE PIH 29-JUN-11 14:22:00 MST-7 29-JUN-11 14:34:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 MG \N \N \N 1 SSE ST CHARLES 1 SSE ST CHARLES 42.1066 -111.3725 42.1066 -111.3725 Measured wind gusts over 60 mph occurred near St Charles and Bern. Sixty mph wind near St Charles. CSV -201105 26 1525 201105 26 1525 53103 317666 WEST VIRGINIA 54 2011 May Hail C 61 MONONGALIA PBZ 26-MAY-11 15:25:00 EST-5 26-MAY-11 15:25:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 E WESTOVER 1 E WESTOVER 39.63 -79.96 39.63 -79.96 A slow moving low pressure system, and it's associated cold front crossed through the region late in the day on the 26th. Scattered severe thunderstorms, most of which produced wind damage, developed along the frontal boundary in an area of instability and high shear. A microburst occurred in Monongalia county in West Virginia with an estimated wind speed of 70-80 mph. CSV -201105 26 1531 201105 26 1531 53103 317667 WEST VIRGINIA 54 2011 May Hail C 93 TUCKER PBZ 26-MAY-11 15:31:00 EST-5 26-MAY-11 15:31:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 0 N DAVIS 0 N DAVIS 39.13 -79.47 39.13 -79.47 A slow moving low pressure system, and it's associated cold front crossed through the region late in the day on the 26th. Scattered severe thunderstorms, most of which produced wind damage, developed along the frontal boundary in an area of instability and high shear. A microburst occurred in Monongalia county in West Virginia with an estimated wind speed of 70-80 mph. CSV -201105 26 1525 201105 26 1525 53103 317668 WEST VIRGINIA 54 2011 May Thunderstorm Wind C 61 MONONGALIA PBZ 26-MAY-11 15:25:00 EST-5 26-MAY-11 15:25:00 0 0 0 0 1.00K 0.00K Broadcast Media 50 EG \N \N \N 1 WSW FIELDCREST 1 WSW FIELDCREST 39.64 -79.95 39.64 -79.95 A slow moving low pressure system, and it's associated cold front crossed through the region late in the day on the 26th. Scattered severe thunderstorms, most of which produced wind damage, developed along the frontal boundary in an area of instability and high shear. A microburst occurred in Monongalia county in West Virginia with an estimated wind speed of 70-80 mph. Broadcast media reports a large tree down on the downtown WVU campus. CSV -201105 26 1534 201105 26 1534 53103 317669 WEST VIRGINIA 54 2011 May Thunderstorm Wind C 93 TUCKER PBZ 26-MAY-11 15:34:00 EST-5 26-MAY-11 15:34:00 0 0 0 0 1.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N DAVIS 0 N DAVIS 39.13 -79.47 39.13 -79.47 A slow moving low pressure system, and it's associated cold front crossed through the region late in the day on the 26th. Scattered severe thunderstorms, most of which produced wind damage, developed along the frontal boundary in an area of instability and high shear. A microburst occurred in Monongalia county in West Virginia with an estimated wind speed of 70-80 mph. Law enforecment reports a large tree down. CSV -201103 9 712 201103 9 800 48068 280610 LOUISIANA 22 2011 March Flash Flood C 103 ST. TAMMANY LIX 09-MAR-11 07:12:00 CST-6 09-MAR-11 08:00:00 0 0 0 0 0.00K 0.00K Amateur Radio \N Heavy Rain \N \N \N 3 E MC CLANE CITY 1 WSW NORTH SLIDELL 30.2502 -89.713 30.2958 -89.7906 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Standing water was reported on Interstate 10 at Irish Bayou. Also received reports of several inches of water in the road at City Hall in Old Town Slidell. CSV -201103 9 734 201103 9 734 48075 280614 MISSISSIPPI 28 2011 March Thunderstorm Wind C 47 HARRISON LIX 09-MAR-11 07:34:00 CST-6 09-MAR-11 07:34:00 0 0 0 0 20.00K 0.00K Emergency Manager 60 EG \N \N \N 4 W LANDON 4 W LANDON 30.4477 -89.1622 30.4477 -89.1622 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Roof and structure damage was reported along Allen Road in west Gulfport. CSV -201103 9 734 201103 9 740 48075 280617 MISSISSIPPI 28 2011 March Tornado C 47 HARRISON LIX 09-MAR-11 07:34:00 CST-6 09-MAR-11 07:40:00 0 0 0 0 20.00K 0.00K NWS Storm Survey \N EF1 1 30 \N 6 N LONG BEACH 6 N LONG BEACH 30.4368 -89.15 30.4368 -89.15 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. A tornado touched down along Landon Road. One home had a portion of roof removed, as well as a storage building and awning destroyed. Several trees were blown down and large branches snapped. CSV -201103 9 738 201103 9 738 48075 280621 MISSISSIPPI 28 2011 March Thunderstorm Wind C 47 HARRISON LIX 09-MAR-11 07:38:00 CST-6 09-MAR-11 07:38:00 0 0 0 0 50.00K 0.00K NWS Storm Survey 70 EG \N \N \N 4 NNE GULFPORT 4 NNE GULFPORT 30.4335 -89.0543 30.4335 -89.0543 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Thunderstorm wind gusts damaged several homes in the Turnberry Subdivision. Three homes sustained roof damage, 16 homes suffered minor wind damage with siding pulled off of some homes. CSV -201103 9 745 201103 9 745 48075 280654 MISSISSIPPI 28 2011 March Thunderstorm Wind C 47 HARRISON LIX 09-MAR-11 07:45:00 CST-6 09-MAR-11 07:45:00 0 0 0 0 2.00K 0.00K Emergency Manager 60 EG \N \N \N 2 SSW LORRAINE 2 SSW LORRAINE 30.4494 -89.031 30.4494 -89.031 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Sign of Captain Ali's Restaurant blown down, as well as a power pole, along State Route 605 and Dedeaux Road. CSV -201103 9 747 201103 9 747 48075 280663 MISSISSIPPI 28 2011 March Thunderstorm Wind C 47 HARRISON LIX 09-MAR-11 07:47:00 CST-6 09-MAR-11 07:47:00 0 0 0 0 0.00K 0.00K Emergency Manager 60 EG \N \N \N 3 NNW D IBERVILLE 3 NNW D IBERVILLE 30.4762 -88.8992 30.4762 -88.8992 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Trees were reported down on Lickskillet Road north of D'Iberville. CSV -201106 9 1400 201106 9 1400 52924 316491 VERMONT 50 2011 June Thunderstorm Wind C 27 WINDSOR BTV 09-JUN-11 14:00:00 EST-5 09-JUN-11 14:00:00 0 0 0 0 0.00K 0.00K Public 51 MG \N \N \N 1 SW WINDSOR 1 SW WINDSOR 43.47 -72.43 43.47 -72.43 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Measured wind gust of 59 mph. CSV -201105 29 1045 201105 29 1045 51203 306793 ILLINOIS 17 2011 May Thunderstorm Wind C 43 DU PAGE LOT 29-MAY-11 10:45:00 CST-6 29-MAY-11 10:45:00 0 0 0 0 0.00K 0.00K ASOS 50 MG \N \N \N 0 N (DPA)DUPAGE CO ARPT 0 N (DPA)DUPAGE CO ARPT 41.9 -88.25 41.9 -88.25 Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. CSV -201105 29 1124 201105 29 1125 51203 306798 ILLINOIS 17 2011 May Hail C 63 GRUNDY LOT 29-MAY-11 11:24:00 CST-6 29-MAY-11 11:25:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 1 W KINSMAN 1 W KINSMAN 41.181 -88.5815 41.181 -88.5815 Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. Quarter size hail was reported along Gardner Road near Kinsman. CSV -201105 26 1350 201105 26 1350 50711 299192 TENNESSEE 47 2011 May Thunderstorm Wind C 65 HAMILTON MRX 26-MAY-11 13:50:00 EST-5 26-MAY-11 13:50:00 0 0 0 0 Emergency Manager 50 EG \N \N \N 1 NW BRAINERD HILLS 1 NW BRAINERD HILLS 35.04 -85.19 35.04 -85.19 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. A few power lines were reported down. CSV -201105 26 1400 201105 26 1400 50711 299194 TENNESSEE 47 2011 May Hail C 65 HAMILTON MRX 26-MAY-11 14:00:00 EST-5 26-MAY-11 14:00:00 0 0 0 0 Trained Spotter 2 \N \N \N 1 W CHICKAMAUGA 1 W CHICKAMAUGA 35.07 -85.26 35.07 -85.26 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Hen egg size hail was reported along interstate 75 near Hamilton Place Mall. CSV -201105 26 1400 201105 26 1400 50711 299195 TENNESSEE 47 2011 May Hail C 155 SEVIER MRX 26-MAY-11 14:00:00 EST-5 26-MAY-11 14:00:00 0 0 0 0 Amateur Radio 1 \N \N \N 1 WSW PITNER 1 WSW PITNER 35.87 -83.77 35.87 -83.77 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Quarter size hail was reported. CSV -201105 26 1420 201105 26 1420 50711 299196 TENNESSEE 47 2011 May Hail C 107 MCMINN MRX 26-MAY-11 14:20:00 EST-5 26-MAY-11 14:20:00 0 0 0 0 Law Enforcement 1.75 \N \N \N 1 S MASHBURN 1 S MASHBURN 35.42 -84.53 35.42 -84.53 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Golf ball size hail was reported. CSV -201105 26 1423 201105 26 1423 50711 299198 TENNESSEE 47 2011 May Hail C 155 SEVIER MRX 26-MAY-11 14:23:00 EST-5 26-MAY-11 14:23:00 0 0 0 0 Trained Spotter 1.25 \N \N \N 1 W KODAK 1 W KODAK 35.97 -83.63 35.97 -83.63 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Half dollar size hail was reported on interstate 40 at exit 407. CSV -201105 20 1651 201105 20 1651 50536 297709 OKLAHOMA 40 2011 May Funnel Cloud C 89 MCCURTAIN SHV 20-MAY-11 16:51:00 CST-6 20-MAY-11 16:51:00 0 0 0 0 0.00K 0.00K Public \N \N \N \N 1 N IDABEL 1 N IDABEL 33.91 -94.83 33.91 -94.83 The storm environment for May 20th involved a very unstable atmosphere, especially across the northern third of Northeast Texas, Southeast Oklahoma and Southwest Arkansas. The atmosphere was weakly capped which resulted in the development of scattered severe thunderstorms across the region. An upper level disturbance moved across the region as well and with cold temperatures aloft resulting in steep mid level lapse rates...a majority of the storms produced large hail. High shear was also in place in the mid and lower levels of the atmosphere which provided a wind threat as well. CSV -201105 21 1345 201105 21 1345 50538 297715 LOUISIANA 22 2011 May Hail C 17 CADDO SHV 21-MAY-11 13:45:00 CST-6 21-MAY-11 13:45:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 3 WNW CONN 3 WNW CONN 32.59 -93.82 32.59 -93.82 Scattered thunderstorms once again developed across the region on May 21st. The atmosphere was unchanged from that of May 20th, which was a very unstable airmass with moderate shear present in the mid and lower levels of the atmosphere. Storms developed along residual boundaries left over from the previous days convection. The result was mainly large hail. CSV -201105 21 1818 201105 21 1818 50539 297716 ARKANSAS 5 2011 May Hail C 73 LAFAYETTE SHV 21-MAY-11 18:18:00 CST-6 21-MAY-11 18:18:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.88 \N \N \N 1 N LEWISVILLE 1 N LEWISVILLE 33.36 -93.58 33.36 -93.58 Scattered thunderstorms once again developed across the region on May 21st. The atmosphere was unchanged from that of May 20th, which was a very unstable airmass with moderate shear present in the mid and lower levels of the atmosphere. Storms developed along residual boundaries left over from the previous days convection. The result was mainly large hail. CSV -201105 25 1605 201105 25 1605 50540 297726 TEXAS 48 2011 May Hail C 203 HARRISON SHV 25-MAY-11 16:05:00 CST-6 25-MAY-11 16:05:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 4 SSW GILL 4 SSW GILL 32.34 -94.35 32.34 -94.35 Severe thunderstorms developed along and ahead of a dry line which moved out of north Texas and southern Oklahoma. Shear was very strong ahead of the dry line in the lower and mid levels of the atmosphere. The result was wind damage, hail and a few tornadoes reported across the region. Hail fell two miles south of Gil on U.S. 59. CSV -201105 25 1737 201105 25 1737 50540 297731 TEXAS 48 2011 May Hail C 405 SAN AUGUSTINE SHV 25-MAY-11 17:37:00 CST-6 25-MAY-11 17:37:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 2 NNE SAN AUGUSTINE 2 NNE SAN AUGUSTINE 31.54 -94.11 31.54 -94.11 Severe thunderstorms developed along and ahead of a dry line which moved out of north Texas and southern Oklahoma. Shear was very strong ahead of the dry line in the lower and mid levels of the atmosphere. The result was wind damage, hail and a few tornadoes reported across the region. Hail was reported to have fallen in the Roberts Community just north of San Augustine, Texas. CSV -201105 25 1824 201105 25 1824 50540 297737 TEXAS 48 2011 May Hail C 403 SABINE SHV 25-MAY-11 18:24:00 CST-6 25-MAY-11 18:24:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 4 E ROSEVINE 4 E ROSEVINE 31.41 -93.94 31.41 -93.94 Severe thunderstorms developed along and ahead of a dry line which moved out of north Texas and southern Oklahoma. Shear was very strong ahead of the dry line in the lower and mid levels of the atmosphere. The result was wind damage, hail and a few tornadoes reported across the region. Hail fell at the intersection of Hwy. 21 and FM 3121. CSV -201104 20 1910 201104 20 1918 50376 301603 MISSISSIPPI 28 2011 April Hail C 7 ATTALA JAN 20-APR-11 19:10:00 CST-6 20-APR-11 19:18:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 7 WSW NEWPORT 3 W NEWPORT 32.9082 -89.8816 32.9344 -89.817 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. CSV -201106 18 1822 201106 18 1822 53573 320802 KANSAS 20 2011 June Hail C 205 WILSON ICT 18-JUN-11 18:22:00 CST-6 18-JUN-11 18:22:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.25 \N \N \N 1 W NEW ALBANY 1 W NEW ALBANY 37.57 -95.95 37.57 -95.95 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201104 20 1945 201104 20 1945 50376 301611 MISSISSIPPI 28 2011 April Thunderstorm Wind C 105 OKTIBBEHA JAN 20-APR-11 19:45:00 CST-6 20-APR-11 19:45:00 0 0 0 0 1.00K 0.00K Emergency Manager 54 EG \N \N \N 2 NW ADATON 2 NW ADATON 33.5 -88.95 33.5 -88.95 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Several trees were blown down. CSV -201104 20 1925 201104 20 1933 50376 301605 MISSISSIPPI 28 2011 April Thunderstorm Wind C 155 WEBSTER JAN 20-APR-11 19:25:00 CST-6 20-APR-11 19:33:00 0 0 0 0 1.00K 0.00K Emergency Manager 58 EG \N \N \N 1 N EUPORA 4 NE SAPA 33.54 -89.28 33.5724 -89.1623 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Several trees were blown down across the south central portions of the county. CSV -201104 20 1951 201104 20 1951 50376 301618 MISSISSIPPI 28 2011 April Thunderstorm Wind C 105 OKTIBBEHA JAN 20-APR-11 19:51:00 CST-6 20-APR-11 19:51:00 0 0 0 0 60.00K 0.00K Emergency Manager 55 EG \N \N \N 1 S STURGIS 1 S STURGIS 33.34 -89.05 33.34 -89.05 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. A couple trees were blown down, one on a car and another on a home. Additionally, a tree was down across Highway 12 just north of Sturgis. CSV -201104 4 828 201104 4 829 48385 282678 ARKANSAS 5 2011 April Tornado C 27 COLUMBIA SHV 04-APR-11 08:28:00 CST-6 04-APR-11 08:29:00 0 0 0 0 75.00K 0.00K NWS Storm Survey \N EF1 0.89 75 \N 2 NNW BOX SPGS 2 N BOX SPGS 33.281 -93.383 33.278 -93.368 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. The National Weather Service conducted a storm survey in Columbia County Arkansas and concluded that storm damage was the result of an EF1 tornado. The tornado touched down at around 9:28 AM, south of Waldo AR along county road 153 ripping off tin from a small barn. A home east of CR 153 sustained minor roof damage and the adjacent garage sustained minor roof damage and some structural damage. The tornado continued east southeast crossing CR 148 where several trees were snapped and uprooted. A home sustained minor roof damage and a small shed had half of its roof torn off. Further east���several trees were snapped and uprooted in a field and a abandoned home had portions of its roof torn off and thrown southeast. The tornado lifted on the south side of cr 148. Maximum winds are estimated at 85-90 mph. CSV -201104 26 1927 201104 26 1927 49622 291315 LOUISIANA 22 2011 April Hail C 15 BOSSIER SHV 26-APR-11 19:27:00 CST-6 26-APR-11 19:27:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.75 \N \N \N 0 N TAYLORTOWN 0 N TAYLORTOWN 32.38 -93.6 32.38 -93.6 A very volatile atmosphere developed during the late afternoon...evening and overnight hours of April 26th across the Four State Region. An area of low pressure moved from the Texas Hill Country into Northeast Texas during the afternoon. Meanwhile, a warm front had moved northward from central Louisiana and was oriented west to east near the Arkansas/Louisiana state line. A dry line had moved just east of the I-35 corridor of North Central Texas and a strong cold front trailed the dry line. Very strong speed and directional shear was noted in the low and mid levels of the atmosphere such that supercells developed. Many of these produced tornadoes across the region. Other storms produced strong straight line wind gusts with bowing segments and large hail. Hail was reported in the Taylortown community. CSV -201104 26 1947 201104 26 1947 49622 291309 LOUISIANA 22 2011 April Hail C 81 RED RIVER SHV 26-APR-11 19:47:00 CST-6 26-APR-11 19:47:00 0 0 0 0 0.00K 0.00K Broadcast Media 1 \N \N \N 0 N HALL SUMMIT 0 N HALL SUMMIT 32.18 -93.3 32.18 -93.3 A very volatile atmosphere developed during the late afternoon...evening and overnight hours of April 26th across the Four State Region. An area of low pressure moved from the Texas Hill Country into Northeast Texas during the afternoon. Meanwhile, a warm front had moved northward from central Louisiana and was oriented west to east near the Arkansas/Louisiana state line. A dry line had moved just east of the I-35 corridor of North Central Texas and a strong cold front trailed the dry line. Very strong speed and directional shear was noted in the low and mid levels of the atmosphere such that supercells developed. Many of these produced tornadoes across the region. Other storms produced strong straight line wind gusts with bowing segments and large hail. CSV -201105 20 1600 201105 23 1030 49901 293282 NEBRASKA 31 2011 May Flood C 151 SALINE OAX 20-MAY-11 16:00:00 CST-6 23-MAY-11 10:30:00 0 0 0 0 5.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 1 NE WILBER 1 ESE WILBER MUNI ARPT 40.4914 -96.9324 40.4674 -96.9684 Thunderstorms developed over eastern Nebraska during the evening of 5/19 ahead of a large upper level low pressure system over the Rocky Mountains and north of a warm front in Kansas. The storms mainly produced areas of heavy rain...with 2 to 3+ inches common from David City and Wahoo south through Lincoln, Crete and Fairbury. This produced some flooding around Wahoo and along the Big Blue River near Crete and the Little Blue River near Fairbury. Rainfall of 3 to 4 inches during the evening and overnight hours of 5/19 and 5/20 over Saline county and upstream. This caused the Big Blue River to flood farmland and county roads around the Crete area. The river at Crete crested just under 20.5 feet in the morning of 5/22, flood stage is 18 feet. CSV -201107 9 1437 201107 9 1438 51889 309051 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 11 BARNWELL CAE 09-JUL-11 14:37:00 EST-5 09-JUL-11 14:38:00 0 0 0 0 Other Federal Agency 65 EG \N \N \N 3 NNE ROBBINS 3 NNE ROBBINS 33.21 -81.65 33.21 -81.65 Widely Scattered Thunderstorms developed across the area...mainly producing locally heavy rain...but one storm did become severe. Savannah River Site reported numerous trees down across the site. CSV -201107 13 1317 201107 13 1321 52054 310148 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 63 LEXINGTON CAE 13-JUL-11 13:17:00 EST-5 13-JUL-11 13:21:00 0 0 0 0 3.00K 0.00K Law Enforcement 55 EG \N \N \N 1 SE BARR 1 SE BARR 33.92 -81.27 33.92 -81.27 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Highway Patrol reported trees down on Kyzer road near Platt Springs road. CSV -201107 13 1344 201107 13 1345 52054 310150 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 81 SALUDA CAE 13-JUL-11 13:44:00 EST-5 13-JUL-11 13:45:00 0 0 0 0 3.00K 0.00K Law Enforcement 55 EG \N \N \N 4 NNW BATESBURG 4 NNW BATESBURG 33.96 -81.58 33.96 -81.58 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Highway Patrol reported trees down at Old Golf Course road and hwy 178. CSV -201107 13 1350 201107 13 1354 52054 310151 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 3 AIKEN CAE 13-JUL-11 13:50:00 EST-5 13-JUL-11 13:54:00 0 0 0 0 2.00K 0.00K Law Enforcement 55 EG \N \N \N 5 S MONETTA 5 S MONETTA 33.78 -81.61 33.78 -81.61 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Highway Patrol reported trees down south of Monetta in Aiken County. CSV -201107 13 1415 201107 13 1419 52054 310152 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 71 NEWBERRY CAE 13-JUL-11 14:15:00 EST-5 13-JUL-11 14:19:00 0 0 0 0 0.00K 0.00K Law Enforcement 55 EG \N \N \N 3 W GLYMPHVILLE 3 W GLYMPHVILLE 34.4 -81.47 34.4 -81.47 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Sheriff dispatch reported several large limbs down on Maybinton road and Gilliam Spring road. CSV -201105 3 2054 201105 3 2054 51679 307188 SOUTH CAROLINA 45 2011 May Thunderstorm Wind C 91 YORK GSP 03-MAY-11 20:54:00 EST-5 03-MAY-11 20:54:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 4 SW LAKE WYLIE 4 SW LAKE WYLIE 35.09 -81.1 35.09 -81.1 Clusters of fast moving thunderstorms developed ahead of a strong cold front. Some of the storms produced damaging winds as they tapped strong gradient winds over the western Carolinas. A tree was blown down on highway 49 near the highway 55 intersection. CSV -201105 10 1550 201105 10 1558 51680 307468 NORTH CAROLINA 37 2011 May Hail C 23 BURKE GSP 10-MAY-11 15:50:00 EST-5 10-MAY-11 15:58:00 0 0 0 0 Trained Spotter 1.5 \N \N \N 1 E GLEN ALPINE 5 W ENOLA 35.73 -81.78 35.68 -81.73 An isolated multicell severe thunderstorm developed over the North Carolina foothills during the afternoon hours. The storm produced large hail as it moved southward across the region. Large hail up to golf ball size fell across southwest Burke County. CSV -201105 10 1640 201105 10 1640 51680 307469 NORTH CAROLINA 37 2011 May Hail C 45 CLEVELAND GSP 10-MAY-11 16:40:00 EST-5 10-MAY-11 16:40:00 0 0 0 0 Trained Spotter 1.25 \N \N \N 3 SSW CASAR 3 SSW CASAR 35.48 -81.66 35.48 -81.66 An isolated multicell severe thunderstorm developed over the North Carolina foothills during the afternoon hours. The storm produced large hail as it moved southward across the region. Hail up to half dollar size was reported 3 to 4 miles southwest of Casar. CSV -201105 10 1655 201105 10 1655 51680 307470 NORTH CAROLINA 37 2011 May Hail C 45 CLEVELAND GSP 10-MAY-11 16:55:00 EST-5 10-MAY-11 16:55:00 0 0 0 0 Trained Spotter 0.88 \N \N \N 2 NNW POTTVILLE 2 NNW POTTVILLE 35.45 -81.67 35.45 -81.67 An isolated multicell severe thunderstorm developed over the North Carolina foothills during the afternoon hours. The storm produced large hail as it moved southward across the region. CSV -201105 11 1504 201105 11 1504 52306 312263 NORTH CAROLINA 37 2011 May Hail C 99 JACKSON GSP 11-MAY-11 15:04:00 EST-5 11-MAY-11 15:04:00 0 0 0 0 County Official 0.88 \N \N \N 1 E BALSAM 1 E BALSAM 35.43 -83.09 35.43 -83.09 Scattered thunderstorms developed over the North Carolina mountains during the afternoon hours. Some of the storms produced hail as they drifted to the south. Nickel size hail fell in the Balsam area. CSV -201105 11 1624 201105 11 1624 52306 312269 NORTH CAROLINA 37 2011 May Hail C 175 TRANSYLVANIA GSP 11-MAY-11 16:24:00 EST-5 11-MAY-11 16:24:00 0 0 0 0 Law Enforcement 0.88 \N \N \N 1 S NORTH BREVARD 1 S NORTH BREVARD 35.24 -82.73 35.24 -82.73 Scattered thunderstorms developed over the North Carolina mountains during the afternoon hours. Some of the storms produced hail as they drifted to the south. CSV -201105 11 1630 201105 11 1630 52306 312272 NORTH CAROLINA 37 2011 May Hail C 175 TRANSYLVANIA GSP 11-MAY-11 16:30:00 EST-5 11-MAY-11 16:30:00 0 0 0 0 Public 1 \N \N \N 2 NNE SEESHORE 2 NNE SEESHORE 35.18 -82.7 35.18 -82.7 Scattered thunderstorms developed over the North Carolina mountains during the afternoon hours. Some of the storms produced hail as they drifted to the south. CSV -201105 11 1818 201105 11 1818 52306 312276 NORTH CAROLINA 37 2011 May Hail C 149 POLK GSP 11-MAY-11 18:18:00 EST-5 11-MAY-11 18:18:00 0 0 0 0 NWS Employee 1 \N \N \N 2 SSW BEULAH 2 SSW BEULAH 35.25 -82.13 35.25 -82.13 Scattered thunderstorms developed over the North Carolina mountains during the afternoon hours. Some of the storms produced hail as they drifted to the south. CSV -201104 22 2113 201104 22 2113 49323 305072 OKLAHOMA 40 2011 April Hail C 137 STEPHENS OUN 22-APR-11 21:13:00 CST-6 22-APR-11 21:13:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 2 W CORUM 2 W CORUM 34.36 -98.1351 34.36 -98.1351 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. CSV -201106 29 1427 201106 29 1437 54530 327482 IDAHO 16 2011 June Thunderstorm Wind C 7 BEAR LAKE PIH 29-JUN-11 14:27:00 MST-7 29-JUN-11 14:37:00 0 0 0 0 0.00K 0.00K Trained Spotter 54 MG \N \N \N 0 N BERN 0 N BERN 42.33 -111.38 42.33 -111.38 Measured wind gusts over 60 mph occurred near St Charles and Bern. Sixty-two mph wind gust at Bern measured by trained spotter. CSV -201104 22 2140 201104 22 2140 49323 305074 OKLAHOMA 40 2011 April Hail C 67 JEFFERSON OUN 22-APR-11 21:40:00 CST-6 22-APR-11 21:40:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 4 NNW WAURIKA LAKE DAM 4 NNW WAURIKA LAKE DAM 34.29 -98.08 34.29 -98.08 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. The hail was reported at Waurika Lake. CSV -201104 22 2115 201104 22 2115 49323 305073 OKLAHOMA 40 2011 April Hail C 49 GARVIN OUN 22-APR-11 21:15:00 CST-6 22-APR-11 21:15:00 0 0 0 0 0.00K 0.00K Fire Department/Rescue 1 \N \N \N 0 N WYNNEWOOD 0 N WYNNEWOOD 34.64 -97.16 34.64 -97.16 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. CSV -201104 8 1810 201104 8 1810 48498 283372 OKLAHOMA 40 2011 April Hail C 71 KAY OUN 08-APR-11 18:10:00 CST-6 08-APR-11 18:10:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 3 S NEWKIRK 3 S NEWKIRK 36.8366 -97.06 36.8366 -97.06 A weak cold front slipped into northern Oklahoma during the early morning hours of the 8th. Meanwhile, a dry line sharpened up near the Oklahoma/Texas panhandle border. Gulf moisture streamed north, with low to middle 60 dew point temperatures in place by late afternoon to the east of the dry line. The cold front had become stationary, providing another focus for afternoon thunderstorms. The cap that was in place for much of the day, weakened sufficiently for thunderstorms to develop over the western third of Oklahoma. Instability and wind shear were already in place, and a weak upper level disturbance moved northeast from west Texas during peak heating hours. Supercell thunderstorms moved northeast, with very large hail to the size of baseballs and strong winds reported along their path. The most intense damage occurred at Ponca City, where a wind gust over 90 mph was measured. CSV -201104 14 1805 201104 14 1805 48744 285077 OKLAHOMA 40 2011 April Hail C 99 MURRAY OUN 14-APR-11 18:05:00 CST-6 14-APR-11 18:05:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 0 N DAVIS 0 N DAVIS 34.5 -97.12 34.5 -97.12 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201105 9 2250 201105 9 2250 52998 317079 SOUTH DAKOTA 46 2011 May Hail C 13 BROWN ABR 09-MAY-11 22:50:00 CST-6 09-MAY-11 22:50:00 0 0 0 0 Public 1 \N \N \N 6 S HOUGHTON 6 S HOUGHTON 45.69 -98.2 45.69 -98.2 Large hail up to the size of golfballs affected parts of Corson and Brown counties with no damage reported. CSV -201105 13 1540 201105 13 2000 52965 316746 PENNSYLVANIA 42 2011 May Flood C 125 WASHINGTON PBZ 13-MAY-11 15:40:00 EST-5 13-MAY-11 20:00:00 0 0 0 0 10.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 2 WSW MUSE 1 WSW BISHOP 40.29 -80.23 40.3178 -80.2108 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. Emergency management reports that several roads are flooded in Cecil Township. CSV -201105 13 1400 201105 13 1400 52965 316747 PENNSYLVANIA 42 2011 May Hail C 129 WESTMORELAND PBZ 13-MAY-11 14:00:00 EST-5 13-MAY-11 14:00:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 W GRAPEVILLE 1 W GRAPEVILLE 40.33 -79.61 40.33 -79.61 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. CSV -201105 13 1505 201105 13 1505 52965 316749 PENNSYLVANIA 42 2011 May Hail C 7 BEAVER PBZ 13-MAY-11 15:05:00 EST-5 13-MAY-11 15:05:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 1 WSW WEST ALIQUIPPA 1 WSW WEST ALIQUIPPA 40.62 -80.25 40.62 -80.25 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. CSV -201105 13 1550 201105 13 2000 52965 316750 PENNSYLVANIA 42 2011 May Flood C 125 WASHINGTON PBZ 13-MAY-11 15:50:00 EST-5 13-MAY-11 20:00:00 0 0 0 0 15.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 1 WSW VESTABURG 1 NW GOOD INTENT 40.0166 -80.0189 40.0423 -80.4501 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. Emergency management reports that several homes are flooded throughout Washington county. One house in Prosperity has 6 feet of water in the basement and animals at a nearby farm needed to be rescued. There was also a mudslide on Route 18 near Prosperity. CSV -201105 30 1645 201105 30 1645 50437 297209 NEBRASKA 31 2011 May Hail C 9 BLAINE LBF 30-MAY-11 16:45:00 CST-6 30-MAY-11 16:45:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 6 W BREWSTER 6 W BREWSTER 41.94 -99.98 41.94 -99.98 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1545 201105 30 1545 50437 297210 NEBRASKA 31 2011 May Hail C 49 DEUEL LBF 30-MAY-11 15:45:00 MST-7 30-MAY-11 15:45:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 10 NNW BIG SPGS 10 NNW BIG SPGS 41.21 -102.14 41.21 -102.14 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1540 201105 30 1545 50437 297211 NEBRASKA 31 2011 May Hail C 69 GARDEN LBF 30-MAY-11 15:40:00 MST-7 30-MAY-11 15:45:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 E LEWELLEN 1 E LEWELLEN 41.33 -102.14 41.33 -102.14 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1726 201105 30 1726 50437 297212 NEBRASKA 31 2011 May Hail C 89 HOLT LBF 30-MAY-11 17:26:00 CST-6 30-MAY-11 17:26:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 1 SW ATKINSON 1 SW ATKINSON 42.52 -98.99 42.52 -98.99 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1726 201105 30 1726 50437 297213 NEBRASKA 31 2011 May Hail C 89 HOLT LBF 30-MAY-11 17:26:00 CST-6 30-MAY-11 17:26:00 0 0 0 0 0.00K 0.00K COOP Observer 1.75 \N \N \N 1 W ATKINSON 1 W ATKINSON 42.53 -98.98 42.53 -98.98 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 22 1440 201105 22 1441 51433 305626 ILLINOIS 17 2011 May Hail C 167 SANGAMON ILX 22-MAY-11 14:40:00 CST-6 22-MAY-11 14:41:00 0 0 0 0 0.00K 0.00K Mesonet 1 \N \N \N 0 ENE LELAND GROVE 0 ENE LELAND GROVE 39.77 -89.7 39.77 -89.7 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1631 201105 22 1632 51433 305629 ILLINOIS 17 2011 May Hail C 95 KNOX ILX 22-MAY-11 16:31:00 CST-6 22-MAY-11 16:32:00 0 0 0 0 0.00K 0.00K Fire Department/Rescue 0.88 \N \N \N 0 S RIO 0 S RIO 41.12 -90.4 41.12 -90.4 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1655 201105 22 1656 51433 305631 ILLINOIS 17 2011 May Hail C 57 FULTON ILX 22-MAY-11 16:55:00 CST-6 22-MAY-11 16:56:00 0 0 0 0 0.00K 0.00K Mesonet 1.25 \N \N \N 0 SW CANTON 0 SW CANTON 40.57 -90.03 40.57 -90.03 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1752 201105 22 1752 50699 299082 TENNESSEE 47 2011 May Thunderstorm Wind C 59 GREENE MRX 22-MAY-11 17:52:00 EST-5 22-MAY-11 17:52:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 2 ENE CANEY BRANCH 2 ENE CANEY BRANCH 36.06 -82.95 36.06 -82.95 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Damaging winds resulted in this region due to relatively dry air in place at the surface which intensified thunderstorm downdrafts. Approximately twenty trees were reported down along Highway 321. CSV -201105 22 1825 201105 22 1825 50699 299083 TENNESSEE 47 2011 May Thunderstorm Wind C 163 SULLIVAN MRX 22-MAY-11 18:25:00 EST-5 22-MAY-11 18:25:00 0 0 0 0 Amateur Radio 55 EG \N \N \N 2 E FORDTOWN 2 E FORDTOWN 36.45 -82.46 36.45 -82.46 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Damaging winds resulted in this region due to relatively dry air in place at the surface which intensified thunderstorm downdrafts. One tree along with several large limbs and power lines were reported down near 1905 Jackson Hollow Road in Kingsport. CSV -201105 22 1828 201105 22 1828 50699 299085 TENNESSEE 47 2011 May Thunderstorm Wind C 163 SULLIVAN MRX 22-MAY-11 18:28:00 EST-5 22-MAY-11 18:28:00 0 0 0 0 ASOS 52 MG \N \N \N 0 N BORING 0 N BORING 36.47 -82.4 36.47 -82.4 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Damaging winds resulted in this region due to relatively dry air in place at the surface which intensified thunderstorm downdrafts. A 52 knot wind gust was measured at the Tri-Cities Regional Airport. CSV -201105 10 1516 201105 10 1520 50729 299275 OHIO 39 2011 May Hail C 107 MERCER ILN 10-MAY-11 15:16:00 EST-5 10-MAY-11 15:20:00 0 0 0 0 Public 0.88 \N \N \N 0 N MARIA STEIN 0 N MARIA STEIN 40.4 -84.48 40.4 -84.48 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 13 1957 201105 13 2157 52756 316455 NEW YORK 36 2011 May Flash Flood C 9 CATTARAUGUS BUF 13-MAY-11 19:57:00 EST-5 13-MAY-11 21:57:00 0 0 0 0 30.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 2 SSE YORKSHIRE 1 NNW DELEVAN 42.5188 -78.4754 42.4973 -78.4766 Low pressure moved across the Great Lakes bringing moist, unstable air to the region. Showers and thunderstorms developed along lake breeze boundaries and persisted through the late afternoon and evening hours across the western southern tier and western Finger Lakes Region. Localized rainfall amounts of up to three inches fell in just a few hours resulting in flash flooding. Numerous roads were closed and/or damaged by the flood waters. Basements were flooded. In some locations, for example Wellsville, States of Emergency were declared in response to the flooding. In Scio, one woman suffered minor injuries as a section of Iron Road gave way as she was driving on it. About a dozen homes were evacuated in Wellsville. Several golf courses sustained damage from the flood waters including Attica, Bethany Hills and Byrncliff. Specific roads closed included: Gerry-Levant, Mee and Stone Roads in Falconer, County Road 48 in Belmont, Routes 9 and 31 in Scio, Chaddock Road in Attica, Perry Road in Sheldon, Route 15 in Geneseo, and Route 16 between Yorkshire and Delevan. Several farms suffered crop damage as recently planted seed was washed away by the flood waters. CSV -201105 25 2100 201105 25 2100 52926 316492 NEW YORK 36 2011 May Thunderstorm Wind C 13 CHAUTAUQUA BUF 25-MAY-11 21:00:00 EST-5 25-MAY-11 21:00:00 0 0 0 0 25.00K 0.00K Trained Spotter 52 MG \N \N \N 1 N KIANTONE 1 N KIANTONE 42.03 -79.2 42.03 -79.2 Thunderstorms developed ahead of a warm front across the southern tier. The thunderstorms produced wind gusts measured to 60 mph however damage indicated wind gusts estimated to 80 to 85 mph. Just north of Kiantone, Chautauqua County, trees were down and blocked route 62. In Friendship, in Allegany county, trees were downed on Times Square and several homes suffered minor structure damage to shingles and siding. A minivan was heavily damaged by a large fallen tree. Along Route 31 a barn was blown down and a nearby home and garage had roofing blown off. Trees were downed on Ackerman Road in Amity and on South Street in the Village Belmont. A large portion of a barn roof was also blown out on South Street. CSV -201105 22 1658 201105 22 1659 51433 305633 ILLINOIS 17 2011 May Hail C 57 FULTON ILX 22-MAY-11 16:58:00 CST-6 22-MAY-11 16:59:00 0 0 0 0 0.00K 0.00K Mesonet 0.75 \N \N \N 2 E CANTON 2 E CANTON 40.57 -89.9919 40.57 -89.9919 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1711 201105 22 1712 51433 305634 ILLINOIS 17 2011 May Hail C 143 PEORIA ILX 22-MAY-11 17:11:00 CST-6 22-MAY-11 17:12:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 0 ENE TRIVOLI 0 ENE TRIVOLI 40.68 -89.9 40.68 -89.9 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201104 20 1304 201104 20 1315 50376 297064 MISSISSIPPI 28 2011 April Hail C 97 MONTGOMERY JAN 20-APR-11 13:04:00 CST-6 20-APR-11 13:15:00 0 0 0 0 0.00K Post Office 1.75 \N \N \N 4 W DUCK HILL 1 E DUCK HILL 33.6355 -89.7825 33.63 -89.71 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. A swath of quarter to golf ball sized hail continued into Montgomery County between I-55 and Duck Hill. CSV -201106 30 1250 201106 30 1250 51674 307157 GULF OF MEXICO 85 2011 June Waterspout Z 750 APALACHICOLA TO DESTIN FL OUT 20NM TAE 30-JUN-11 12:50:00 EST-5 30-JUN-11 12:50:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N 6 ENE INDIAN PASS 6 ENE INDIAN PASS 29.7 -85.17 29.7 -85.17 A couple of waterspouts were reported in Saint Vincent Sound. Law enforcement reported a second waterspout over Saint Vincent sound in practically the same place as the earlier report before noon. CSV -201106 1 0 201106 30 2359 51675 308010 GEORGIA 13 2011 June Drought Z 144 BAKER TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308012 GEORGIA 13 2011 June Drought Z 130 BEN HILL TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308014 GEORGIA 13 2011 June Drought Z 148 BERRIEN TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308015 GEORGIA 13 2011 June Drought Z 159 BROOKS TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308017 GEORGIA 13 2011 June Drought Z 123 CALHOUN TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201104 4 724 201104 4 724 48384 282616 TEXAS 48 2011 April Thunderstorm Wind C 37 BOWIE SHV 04-APR-11 07:24:00 CST-6 04-APR-11 07:24:00 0 0 0 0 0.00K 0.00K Emergency Manager 52 EG \N \N \N 1 S WAKE VLG 1 S WAKE VLG 33.4 -94.08 33.4 -94.08 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. Powerlines were downed southwest of Texarkana. CSV -201104 4 735 201104 4 735 48384 282617 TEXAS 48 2011 April Thunderstorm Wind C 67 CASS SHV 04-APR-11 07:35:00 CST-6 04-APR-11 07:35:00 0 0 0 0 50.00K 0.00K Law Enforcement 55 EG \N \N \N 2 W HUGHES SPGS 2 W HUGHES SPGS 33 -94.63 33 -94.63 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. Multiple trees down all across the county but especially in Hughes Springs. One tree fell on a building with people trapped inside. There were no report of any injuries. CSV -201104 19 2040 201104 19 2040 48859 285945 OKLAHOMA 40 2011 April Hail C 89 MCCURTAIN SHV 19-APR-11 20:40:00 CST-6 19-APR-11 20:40:00 0 0 0 0 0.00K 0.00K Other Federal Agency 1.75 \N \N \N 4 N CERROGORDO 4 N CERROGORDO 33.98 -94.51 33.98 -94.51 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. CSV -201104 19 2155 201104 19 2155 48861 285952 TEXAS 48 2011 April Hail C 387 RED RIVER SHV 19-APR-11 21:55:00 CST-6 19-APR-11 21:55:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.25 \N \N \N 1 SW CLARKSVILLE 1 SW CLARKSVILLE 33.61 -95.06 33.61 -95.06 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. Half dollar sized hail fell at the courthouse. CSV -201104 19 2235 201104 19 2235 48861 285954 TEXAS 48 2011 April Hail C 37 BOWIE SHV 19-APR-11 22:35:00 CST-6 19-APR-11 22:35:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 1 N DE KALB 1 N DE KALB 33.51 -94.62 33.51 -94.62 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. CSV -201105 27 1600 201105 27 1600 53089 317556 NORTH CAROLINA 37 2011 May Hail C 159 ROWAN GSP 27-MAY-11 16:00:00 EST-5 27-MAY-11 16:00:00 0 0 0 0 Trained Spotter 1 \N \N \N 3 WNW ROWAN CO ARPT 3 WNW ROWAN CO ARPT 35.67 -80.57 35.67 -80.57 Thunderstorms developed over the North Carolina piedmont during the afternoon hours along a dissipating frontal boundary. A few of the storms produced large hail and damaging straight line winds. Penny to quarter size hail covered the ground about 5 miles west of Salisbury. CSV -201105 27 1622 201105 27 1627 53089 317557 NORTH CAROLINA 37 2011 May Thunderstorm Wind C 59 DAVIE GSP 27-MAY-11 16:22:00 EST-5 27-MAY-11 16:27:00 0 0 0 0 Trained Spotter 60 EG \N \N \N 2 NE COOLEEMEE 3 S MOCKSVILLE ARPK ARPT 35.844 -80.543 35.874 -80.44 Thunderstorms developed over the North Carolina piedmont during the afternoon hours along a dissipating frontal boundary. A few of the storms produced large hail and damaging straight line winds. Multiple trees were blown down along Fairfield Rd to Deadmon Rd and Willboone Rd. Trees were also blown down near the intersection of highway 64 and highway 801. At least one tree fell on a vehicle. A large greenhouse was also heavily damaged in this area. CSV -201105 3 1911 201105 3 1911 51679 318283 SOUTH CAROLINA 45 2011 May Hail C 47 GREENWOOD GSP 03-MAY-11 19:11:00 EST-5 03-MAY-11 19:11:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 NE COKESBURY 1 NE COKESBURY 34.29 -82.21 34.29 -82.21 Clusters of fast moving thunderstorms developed ahead of a strong cold front. Some of the storms produced damaging winds as they tapped strong gradient winds over the western Carolinas. CSV -201105 3 1915 201105 3 1915 51679 318284 SOUTH CAROLINA 45 2011 May Hail C 47 GREENWOOD GSP 03-MAY-11 19:15:00 EST-5 03-MAY-11 19:15:00 0 0 0 0 Trained Spotter 1 \N \N \N 0 N GRENDEL MILLS 0 N GRENDEL MILLS 34.23 -82.17 34.23 -82.17 Clusters of fast moving thunderstorms developed ahead of a strong cold front. Some of the storms produced damaging winds as they tapped strong gradient winds over the western Carolinas. CSV -201105 3 1911 201105 3 1914 51644 318285 NORTH CAROLINA 37 2011 May Thunderstorm Wind C 35 CATAWBA GSP 03-MAY-11 19:11:00 EST-5 03-MAY-11 19:14:00 0 0 0 0 County Official 50 EG \N \N \N 1 NNW CONOVER 4 NE OYAMA 35.72 -81.23 35.77 -81.21 Clusters of fast moving thunderstorms developed ahead of a strong cold front. Some of the storms produced damaging winds as they tapped strong gradient winds over the western Carolinas. A tree was blown down on a mobile home on Highland Ave. Trees were also blown down Daniel St and Lee Cline Rd. CSV -201105 26 1900 201105 26 1900 53012 318294 NORTH CAROLINA 37 2011 May Thunderstorm Wind C 161 RUTHERFORD GSP 26-MAY-11 19:00:00 EST-5 26-MAY-11 19:00:00 0 0 0 0 County Official 50 EG \N \N \N 1 SSW RUTH 1 SSW RUTH 35.37 -81.955 35.37 -81.955 Numerous showers and thunderstorms affected the western Carolinas and northeast Georgia during the afternoon and evening hours. Some of the thunderstorms were severe, producing large hail and damaging straight line wind. Trees were blown down in the Rutherfordton area. CSV -201106 7 400 201106 7 1100 54512 327444 IDAHO 16 2011 June Flash Flood C 81 TETON PIH 07-JUN-11 04:00:00 MST-7 07-JUN-11 11:00:00 0 0 0 0 2.00K 0.00K Emergency Manager \N Heavy Rain / Snow Melt \N \N \N 5 S FELT 5 E FELT 43.7976 -111.18 43.87 -111.0796 Heavy rains combined with snowmelt caused flash flooding in Fremont and Teton Counties on the evening of June 7th and early morning of June 8th. Heavy rain on top of snowmelt caused Badger Crerek to flood causing damage to County Road 10000 North. It was closed for several weeks. CSV -201104 27 832 201104 27 837 50307 302004 MISSISSIPPI 28 2011 April Hail C 115 PONTOTOC MEG 27-APR-11 08:32:00 CST-6 27-APR-11 08:37:00 0 0 0 0 0.00K Amateur Radio 0.75 \N \N \N 0 N ECRU 0 N ECRU 34.35 -89.03 34.35 -89.03 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201104 27 839 201104 27 844 50307 302006 MISSISSIPPI 28 2011 April Hail C 145 UNION MEG 27-APR-11 08:39:00 CST-6 27-APR-11 08:44:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 0 N BLUE SPGS 0 N BLUE SPGS 34.4 -88.87 34.4 -88.87 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201104 27 850 201104 27 855 50307 302009 MISSISSIPPI 28 2011 April Thunderstorm Wind C 81 LEE MEG 27-APR-11 08:50:00 CST-6 27-APR-11 08:55:00 0 0 0 0 0.00K Trained Spotter 50 EG \N \N \N 5 N TUPELO 1 W SALTILLO 34.3424 -88.72 34.3803 -88.6899 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Straight line winds knocked trees down north of Tupelo. CSV -201107 13 1645 201107 13 1645 53302 318836 KANSAS 20 2011 July Hail C 179 SHERIDAN GLD 13-JUL-11 16:45:00 CST-6 13-JUL-11 16:45:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 WNW SEGUIN 1 WNW SEGUIN 39.34 -100.6 39.34 -100.6 A broken line of thunderstorms developed from Oberlin southwest to the Colby area, then moved east to Norton and Hill City during the early evening hours. Hail to golf ball size and wind gusts to 70 mph were report, producing minor tree limb damage. Peak winds were also estimated to be near 50 mph. CSV -201107 13 1817 201107 13 1817 53302 318838 KANSAS 20 2011 July Thunderstorm Wind C 65 GRAHAM GLD 13-JUL-11 18:17:00 CST-6 13-JUL-11 18:17:00 0 0 0 0 0.00K 0.00K COOP Observer 52 EG \N \N \N 10 SSE PENOKEE 10 SSE PENOKEE 39.23 -99.88 39.23 -99.88 A broken line of thunderstorms developed from Oberlin southwest to the Colby area, then moved east to Norton and Hill City during the early evening hours. Hail to golf ball size and wind gusts to 70 mph were report, producing minor tree limb damage. The Coop observer estimated peak wind gusts to be 60 mph. CSV -201106 18 2116 201106 18 2116 53108 317762 MISSOURI 29 2011 June Hail C 37 CASS EAX 18-JUN-11 21:16:00 CST-6 18-JUN-11 21:16:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.5 \N \N \N 4 SE GARDEN CITY 4 SE GARDEN CITY 38.53 -94.15 38.53 -94.15 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2112 201106 18 2112 53108 317763 MISSOURI 29 2011 June Hail C 37 CASS EAX 18-JUN-11 21:12:00 CST-6 18-JUN-11 21:12:00 0 0 0 0 0.00K 0.00K Official NWS Observations 0.88 \N \N \N 1 N PLEASANT HILL 1 N PLEASANT HILL 38.8 -94.27 38.8 -94.27 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2045 201106 18 2045 53108 317764 MISSOURI 29 2011 June Hail C 37 CASS EAX 18-JUN-11 20:45:00 CST-6 18-JUN-11 20:45:00 0 0 0 0 0.00K 0.00K Public 2.25 \N \N \N 1 N HARRISONVILLE 1 N HARRISONVILLE 38.66 -94.35 38.66 -94.35 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2131 201106 18 2131 53108 317765 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 21:31:00 CST-6 18-JUN-11 21:31:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 E LONE JACK BERRY ARPT 1 E LONE JACK BERRY ARPT 38.87 -94.15 38.87 -94.15 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2143 201106 18 2143 53108 317766 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 21:43:00 CST-6 18-JUN-11 21:43:00 0 0 0 0 0.00K 0.00K NWS Employee 0.75 \N \N \N 1 NNW LAKE LOTAWANA 1 NNW LAKE LOTAWANA 38.92 -94.33 38.92 -94.33 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201108 6 1530 201108 6 1530 54867 329621 GEORGIA 13 2011 August Thunderstorm Wind C 25 BRANTLEY JAX 06-AUG-11 15:30:00 EST-5 06-AUG-11 15:30:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 1 ESE WAYNESVILLE 1 ESE WAYNESVILLE 31.22 -81.78 31.22 -81.78 The sea breezes ignited a few severe storms over an unstable air mass during the afternoon and evening. The Waverly Minit Mart reported a customer saw large trees down and minor damage to a home off of County Road 170. CSV -201106 23 1810 201106 23 1820 54516 327448 IDAHO 16 2011 June Hail C 7 BEAR LAKE PIH 23-JUN-11 18:10:00 MST-7 23-JUN-11 18:20:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 0 N OVID 0 N OVID 42.28 -111.38 42.28 -111.38 Several reports of 1 to 2 inch hail were received in Bear Lake County. One inch hail reported in Ovid. CSV -201106 18 1753 201106 18 1808 54264 326238 GEORGIA 13 2011 June Thunderstorm Wind C 221 OGLETHORPE FFC 18-JUN-11 17:53:00 EST-5 18-JUN-11 18:08:00 0 0 0 0 2.00K 0.00K County Official 50 EG \N \N \N 7 WNW STEPHENS 0 WNW LEXINGTON 33.8388 -83.2827 33.87 -83.12 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Oglethorpe County 911 Center reported that at least six trees were down in the county, mainly in the Lexington and Crawford areas. CSV -201106 18 1750 201106 18 1755 54264 326240 GEORGIA 13 2011 June Thunderstorm Wind C 59 CLARKE FFC 18-JUN-11 17:50:00 EST-5 18-JUN-11 17:55:00 0 0 0 0 10.00K 0.00K Emergency Manager 50 EG \N \N \N 3 NW ATHENS 5 SE WHITEHALL 33.9807 -83.417 33.8488 -83.3084 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Clarke County Emergency Management Director reported that at least four trees and over six power lines were down in the Athens area. Much of the city of Athens was left without power for several hours following the damaging thunderstorm winds. CSV -201106 9 140 201106 9 140 54137 324698 MICHIGAN 26 2011 June Thunderstorm Wind C 115 MONROE DTX 09-JUN-11 01:40:00 EST-5 09-JUN-11 01:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 MG \N \N \N 1 E PETERSBURG 1 E PETERSBURG 41.9 -83.71 41.9 -83.71 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. A trained spotter estimated a 60 mph thunderstorm wind gust. CSV -201106 16 1830 201106 16 1830 54840 329532 KANSAS 20 2011 June Thunderstorm Wind C 83 HODGEMAN DDC 16-JUN-11 18:30:00 CST-6 16-JUN-11 18:30:00 0 0 0 0 Public 56 EG \N \N \N 11 ENE JETMORE 11 ENE JETMORE 38.1409 -99.7131 38.1409 -99.7131 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. Winds were estimated to be 65 MPH. CSV -201106 16 1930 201106 16 1930 54840 329533 KANSAS 20 2011 June Thunderstorm Wind C 57 FORD DDC 16-JUN-11 19:30:00 CST-6 16-JUN-11 19:30:00 0 0 0 0 COOP Observer 56 EG \N \N \N 3 S BELLEFONT 3 S BELLEFONT 37.8266 -99.65 37.8266 -99.65 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. Three inch diameter tree limbs were blown down. CSV -201106 16 1945 201106 16 1945 54840 329536 KANSAS 20 2011 June Thunderstorm Wind C 97 KIOWA DDC 16-JUN-11 19:45:00 CST-6 16-JUN-11 19:45:00 0 0 0 0 NWS Storm Survey 83 EG \N \N \N 3 WSW GREENSBURG 3 WSW GREENSBURG 37.5834 -99.3506 37.5834 -99.3506 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. An 80 foot tall pine tree was uprooted. This appeared to be the forward flank downdraft of a large rotating supercell thunderstorm. CSV -201106 16 2020 201106 16 2020 54840 329537 KANSAS 20 2011 June Thunderstorm Wind C 151 PRATT DDC 16-JUN-11 20:20:00 CST-6 16-JUN-11 20:20:00 0 0 0 0 Public 70 EG \N \N \N 0 N PRATT 0 N PRATT 37.65 -98.73 37.65 -98.73 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. Winds were estimated to be at least 80 MPH. CSV -201106 16 2020 201106 16 2020 54840 329538 KANSAS 20 2011 June Hail C 151 PRATT DDC 16-JUN-11 20:20:00 CST-6 16-JUN-11 20:20:00 0 0 0 0 Public 1 \N \N \N 0 N PRATT 0 N PRATT 37.65 -98.73 37.65 -98.73 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. CSV -201106 16 2045 201106 16 2045 54840 329539 KANSAS 20 2011 June Thunderstorm Wind C 145 PAWNEE DDC 16-JUN-11 20:45:00 CST-6 16-JUN-11 20:45:00 0 0 0 0 COOP Observer 50 MG \N \N \N 0 N LARNED 0 N LARNED 38.18 -99.1 38.18 -99.1 A slow moving upper level short wave trough helped to produced scattered thunderstorms in the evening. CSV -201106 17 2115 201106 17 2115 54884 329707 KANSAS 20 2011 June Hail C 171 SCOTT DDC 17-JUN-11 21:15:00 CST-6 17-JUN-11 21:15:00 0 0 0 0 Public 1.25 \N \N \N 1 W SCOTT CITY 1 W SCOTT CITY 38.48 -100.91 38.48 -100.91 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2116 201106 17 2116 54884 329708 KANSAS 20 2011 June Hail C 171 SCOTT DDC 17-JUN-11 21:16:00 CST-6 17-JUN-11 21:16:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 W SCOTT CITY 1 W SCOTT CITY 38.48 -100.91 38.48 -100.91 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2118 201106 17 2118 54884 329709 KANSAS 20 2011 June Hail C 171 SCOTT DDC 17-JUN-11 21:18:00 CST-6 17-JUN-11 21:18:00 0 0 0 0 Public 1.75 \N \N \N 1 W SCOTT CITY 1 W SCOTT CITY 38.48 -100.91 38.48 -100.91 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. There was a mix of quarter to golf ball sized hail. CSV -201106 17 2123 201106 17 2123 54884 329710 KANSAS 20 2011 June Hail C 171 SCOTT DDC 17-JUN-11 21:23:00 CST-6 17-JUN-11 21:23:00 0 0 0 0 Storm Chaser 1.75 \N \N \N 1 W SCOTT CITY 1 W SCOTT CITY 38.48 -100.91 38.48 -100.91 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 23 1811 201106 23 1820 54516 327456 IDAHO 16 2011 June Hail C 7 BEAR LAKE PIH 23-JUN-11 18:11:00 MST-7 23-JUN-11 18:20:00 0 0 0 0 0.00K 0.00K Trained Spotter 2 \N \N \N 0 N MONTPELIER 0 N MONTPELIER 42.32 -111.3 42.32 -111.3 Several reports of 1 to 2 inch hail were received in Bear Lake County. A trained spotter reported 2 inch hail in Montpelier. CSV -201105 1 0 201105 31 2359 52262 311830 NEW MEXICO 35 2011 May Drought Z 523 CENTRAL HIGHLANDS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 9 1520 201106 9 1523 53953 323213 MAINE 23 2011 June Thunderstorm Wind C 31 YORK GYX 09-JUN-11 15:20:00 EST-5 09-JUN-11 15:23:00 0 0 0 0 0.00K 0.00K Trained Spotter 61 EG \N \N \N 2 NE KENNEBUNK 2 NE KENNEBUNK 43.4005 -70.5218 43.4005 -70.5218 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed multiple trees and branches near Kennebunk. CSV -201106 9 1600 201106 9 1605 53953 323214 MAINE 23 2011 June Thunderstorm Wind C 11 KENNEBEC GYX 09-JUN-11 16:00:00 EST-5 09-JUN-11 16:05:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 1 NW HALLOWELL 1 NW HALLOWELL 44.29 -69.79 44.29 -69.79 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed trees in Hallowell. CSV -201106 28 1710 201106 28 1710 54343 326367 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 28-JUN-11 17:10:00 EST-5 28-JUN-11 17:10:00 0 0 0 0 1.80K 0.00K State Official 50 EG \N \N \N 0 N GLADYS 0 N GLADYS 37.17 -79.08 37.17 -79.08 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew two trees down. Damage values are estimated. CSV -201106 28 1424 201106 28 1424 54343 326368 VIRGINIA 51 2011 June Thunderstorm Wind C 185 TAZEWELL RNK 28-JUN-11 14:24:00 EST-5 28-JUN-11 14:24:00 0 0 0 0 4.50K 0.00K State Official 55 EG \N \N \N 1 SE ADRIA 1 SE ADRIA 37.16 -81.54 37.16 -81.54 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew trees down on Adria Road. Damage values are estimated. CSV -201106 28 1730 201106 28 1730 54343 326371 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 28-JUN-11 17:30:00 EST-5 28-JUN-11 17:30:00 0 0 0 0 45.00K 0.00K State Official 55 EG \N \N \N 0 N RUSTBURG 0 N RUSTBURG 37.28 -79.1 37.28 -79.1 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew trees down countywide. Damage values are estimated. CSV -201105 1 0 201105 31 2359 52262 311831 NEW MEXICO 35 2011 May Drought Z 524 SOUTH CENTRAL HIGHLANDS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 7 2000 201106 8 700 54512 327438 IDAHO 16 2011 June Flash Flood C 43 FREMONT PIH 07-JUN-11 20:00:00 MST-7 08-JUN-11 07:00:00 0 0 0 0 3.00K 0.00K Emergency Manager \N Heavy Rain / Snow Melt \N \N \N 0 N ST ANTHONY 0 SE LAMONT 43.97 -111.68 43.97 -111.22 Heavy rains combined with snowmelt caused flash flooding in Fremont and Teton Counties on the evening of June 7th and early morning of June 8th. One mile north of Ashton a potato cellar wit machinery inside was flooded with 3 feet of water. Four cabins at the Log Cabin Motel in Ashton were flooded.; A mudslide temporarily closed one lane of Highwy 20. USFS Wood 1 Road was washed out. 0.50 inches of rain fell in a span of 30 minutes. Rocks and trees were across Highway 20/47 near Ashton/Marysville. CSV -201106 23 1812 201106 23 1820 54516 327459 IDAHO 16 2011 June Hail C 7 BEAR LAKE PIH 23-JUN-11 18:12:00 MST-7 23-JUN-11 18:20:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 N MONTPELIER 1 N MONTPELIER 42.3345 -111.3 42.3345 -111.3 Several reports of 1 to 2 inch hail were received in Bear Lake County. One inch hail reported by spotter 1 mile north of Montpelier. CSV -201106 28 1745 201106 28 1745 54343 326373 VIRGINIA 51 2011 June Thunderstorm Wind C 37 CHARLOTTE RNK 28-JUN-11 17:45:00 EST-5 28-JUN-11 17:45:00 0 0 0 0 4.50K 0.00K State Official 55 EG \N \N \N 0 N SAXE 0 N SAXE 36.93 -78.67 36.93 -78.67 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew down trees on Route 612. Damage values are estimated. CSV -201108 1 0 201108 31 2359 54910 329930 GEORGIA 13 2011 August Drought Z 145 MITCHELL TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201106 20 1751 201106 20 1751 53576 320910 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 17:51:00 CST-6 20-JUN-11 17:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 N TOWANDA 0 N TOWANDA 37.8 -97 37.8 -97 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1751 201106 20 1751 53576 320911 KANSAS 20 2011 June Hail C 35 COWLEY ICT 20-JUN-11 17:51:00 CST-6 20-JUN-11 17:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 4 E UDALL 4 E UDALL 37.39 -97.04 37.39 -97.04 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1751 201106 20 1751 53576 320912 KANSAS 20 2011 June Thunderstorm Wind C 35 COWLEY ICT 20-JUN-11 17:51:00 CST-6 20-JUN-11 17:51:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 4 WSW ROCK 4 WSW ROCK 37.43 -97.07 37.43 -97.07 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 1751 201106 20 1751 53576 320913 KANSAS 20 2011 June Thunderstorm Wind C 15 BUTLER ICT 20-JUN-11 17:51:00 CST-6 20-JUN-11 17:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 61 EG \N \N \N 1 W EL DORADO 1 W EL DORADO 37.8201 -96.8922 37.8201 -96.8922 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Sixty to 70 mph winds were reported on the west side of El Dorado. CSV -201106 20 1751 201106 20 1751 53576 320914 KANSAS 20 2011 June Thunderstorm Wind C 15 BUTLER ICT 20-JUN-11 17:51:00 CST-6 20-JUN-11 17:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 52 EG \N \N \N 1 E DOUGLASS 1 E DOUGLASS 37.52 -97.01 37.52 -97.01 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter along with one half inch sized hail. CSV -201106 20 1755 201106 20 1755 53576 320916 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 17:55:00 CST-6 20-JUN-11 17:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 E DOUGLASS 1 E DOUGLASS 37.52 -97.01 37.52 -97.01 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201105 3 725 201105 3 1230 50724 299258 OHIO 39 2011 May Flood C 1 ADAMS ILN 03-MAY-11 07:25:00 EST-5 03-MAY-11 12:30:00 0 0 0 0 2.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 0 N WEST UNION 1 SSE WEST UNION 38.8 -83.53 38.7894 -83.5243 An area of showers and thunderstorms moved across the area during the morning hours. This heavy rain caused flooding across the region. Multiple roads were closed due to water on roads. CSV -201105 10 1415 201105 10 1419 50728 299264 KENTUCKY 21 2011 May Hail C 201 ROBERTSON ILN 10-MAY-11 14:15:00 EST-5 10-MAY-11 14:19:00 0 0 0 0 Public 1.75 \N \N \N 1 SE PIQUA 1 SE PIQUA 38.4598 -84.0369 38.4598 -84.0369 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1425 201105 10 1429 50728 299267 KENTUCKY 21 2011 May Hail C 191 PENDLETON ILN 10-MAY-11 14:25:00 EST-5 10-MAY-11 14:29:00 0 0 0 0 Trained Spotter 0.75 \N \N \N 3 ESE FALMOUTH 3 ESE FALMOUTH 38.6534 -84.2786 38.6534 -84.2786 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1435 201105 10 1439 50728 299269 KENTUCKY 21 2011 May Hail C 23 BRACKEN ILN 10-MAY-11 14:35:00 EST-5 10-MAY-11 14:39:00 0 0 0 0 Trained Spotter 1.75 \N \N \N 0 N NEAVE 0 N NEAVE 38.65 -84.18 38.65 -84.18 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1512 201105 10 1516 50728 299270 KENTUCKY 21 2011 May Hail C 201 ROBERTSON ILN 10-MAY-11 15:12:00 EST-5 10-MAY-11 15:16:00 0 0 0 0 Public 1 \N \N \N 4 SSW MT OLIVET 4 SSW MT OLIVET 38.4765 -84.0583 38.4765 -84.0583 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1528 201105 10 1532 50729 299271 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:28:00 EST-5 10-MAY-11 15:32:00 0 0 0 0 Trained Spotter 1 \N \N \N 0 N FRANKFORT 0 N FRANKFORT 39.4 -83.18 39.4 -83.18 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1537 201105 10 1541 50729 299273 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:37:00 EST-5 10-MAY-11 15:41:00 0 0 0 0 Trained Spotter 1.5 \N \N \N 2 ENE KNOCKEMSTIFF 2 ENE KNOCKEMSTIFF 39.2811 -83.0855 39.2811 -83.0855 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1528 201105 10 1532 50729 299274 OHIO 39 2011 May Hail C 145 SCIOTO ILN 10-MAY-11 15:28:00 EST-5 10-MAY-11 15:32:00 0 0 0 0 Public 0.75 \N \N \N 0 N PORTSMOUTH 0 N PORTSMOUTH 38.73 -82.98 38.73 -82.98 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1518 201105 10 1522 50729 299277 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:18:00 EST-5 10-MAY-11 15:22:00 0 0 0 0 Trained Spotter 0.88 \N \N \N 0 N FRANKFORT 0 N FRANKFORT 39.4 -83.18 39.4 -83.18 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201104 15 1621 201104 15 1626 50602 298427 MISSISSIPPI 28 2011 April Hail C 145 UNION MEG 15-APR-11 16:21:00 CST-6 15-APR-11 16:26:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 2 E ELLISTOWN 2 E ELLISTOWN 34.45 -88.8149 34.45 -88.8149 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201104 15 1654 201104 15 1659 50601 298428 TENNESSEE 47 2011 April Hail C 183 WEAKLEY MEG 15-APR-11 16:54:00 CST-6 15-APR-11 16:59:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 1 W GREENFIELD 1 W GREENFIELD 36.15 -88.8179 36.15 -88.8179 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201104 27 1328 201104 27 1329 50307 303012 MISSISSIPPI 28 2011 April Tornado C 145 UNION MEG 27-APR-11 13:28:00 CST-6 27-APR-11 13:29:00 0 0 0 0 10.00K 0.00K Emergency Manager \N EF0 0.4 25 \N 1 N PLEASANT RIDGE 2 N PLEASANT RIDGE 34.5912 -88.8323 34.5944 -88.8265 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. A weak tornado briefly touched down on Highway 370 near Locum and moved northeast. Numerous trees were knocked down. The tornado lifted near County Road 235. CSV -201104 27 1240 201104 27 1245 50307 303231 MISSISSIPPI 28 2011 April Thunderstorm Wind C 71 LAFAYETTE MEG 27-APR-11 12:40:00 CST-6 27-APR-11 12:45:00 0 0 0 0 0.00K Law Enforcement 50 EG \N \N \N 3 S OXFORD 3 SE OXFORD 34.3266 -89.52 34.3364 -89.484 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Straight line winds knocked down several trees south of Oxford. CSV -201106 26 2212 201106 26 2212 54109 324306 MISSOURI 29 2011 June Thunderstorm Wind C 81 HARRISON EAX 26-JUN-11 22:12:00 CST-6 26-JUN-11 22:12:00 0 0 0 0 1.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N BETHANY 0 N BETHANY 40.27 -94.03 40.27 -94.03 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Power lines were blown down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2155 201106 26 2155 54109 324307 MISSOURI 29 2011 June Thunderstorm Wind C 75 GENTRY EAX 26-JUN-11 21:55:00 CST-6 26-JUN-11 21:55:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 1 E STANBERRY 1 E STANBERRY 40.22 -94.54 40.22 -94.54 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Numerous tree branches reported down, with thunderstorm wind gusts estimated up to 60 mph. CSV -201106 26 2225 201106 26 2225 54109 324309 MISSOURI 29 2011 June Thunderstorm Wind C 129 MERCER EAX 26-JUN-11 22:25:00 CST-6 26-JUN-11 22:25:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 1 W PRINCETON 1 W PRINCETON 40.4 -93.59 40.4 -93.59 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2200 201106 26 2200 54109 324310 MISSOURI 29 2011 June Thunderstorm Wind C 87 HOLT EAX 26-JUN-11 22:00:00 CST-6 26-JUN-11 22:00:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 1 N CRAIG 1 N CRAIG 40.21 -95.37 40.21 -95.37 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Trees and power lines were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2200 201106 26 2200 54109 324311 MISSOURI 29 2011 June Thunderstorm Wind C 3 ANDREW EAX 26-JUN-11 22:00:00 CST-6 26-JUN-11 22:00:00 0 0 0 0 1.00K 0.00K Law Enforcement 52 EG \N \N \N 1 N SAVANNAH 1 N SAVANNAH 39.94 -94.83 39.94 -94.83 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Trees and power lines were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2200 201106 26 2200 54109 324312 MISSOURI 29 2011 June Thunderstorm Wind C 75 GENTRY EAX 26-JUN-11 22:00:00 CST-6 26-JUN-11 22:00:00 0 0 0 0 1.00K 0.00K Broadcast Media 52 EG \N \N \N 1 E KING CITY 1 E KING CITY 40.05 -94.52 40.05 -94.52 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Power lines were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 18 1831 201106 18 1831 53573 320803 KANSAS 20 2011 June Hail C 205 WILSON ICT 18-JUN-11 18:31:00 CST-6 18-JUN-11 18:31:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N FREDONIA 0 N FREDONIA 37.53 -95.82 37.53 -95.82 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 26 2210 201106 26 2210 54109 324313 MISSOURI 29 2011 June Thunderstorm Wind C 81 HARRISON EAX 26-JUN-11 22:10:00 CST-6 26-JUN-11 22:10:00 0 0 0 0 0.00K 0.00K Broadcast Media 52 EG \N \N \N 1 W RIDGEWAY 1 W RIDGEWAY 40.38 -93.94 40.38 -93.94 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Large tree limbs were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201107 11 1747 201107 11 1747 52669 317497 NEBRASKA 31 2011 July Hail C 161 SHERIDAN LBF 11-JUL-11 17:47:00 MST-7 11-JUL-11 17:47:00 0 0 0 0 0.00K 0.00K Public 1.75 \N \N \N 22 NNE ELLSWORTH 22 NNE ELLSWORTH 42.37 -102.11 42.37 -102.11 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. CSV -201107 11 1733 201107 11 1733 52669 317498 NEBRASKA 31 2011 July Thunderstorm Wind C 161 SHERIDAN LBF 11-JUL-11 17:33:00 MST-7 11-JUL-11 17:33:00 0 0 0 0 0.00K 0.00K Public 52 EG \N \N \N 19 NNE ELLSWORTH 19 NNE ELLSWORTH 42.33 -102.14 42.33 -102.14 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. Tree limb damage occurred at this location. CSV -201107 11 1935 201107 11 1935 52669 317504 NEBRASKA 31 2011 July Hail C 31 CHERRY LBF 11-JUL-11 19:35:00 CST-6 11-JUL-11 19:35:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 39 SW MERRITT RES 39 SW MERRITT RES 42.29 -101.54 42.29 -101.54 Isolated thunderstorms developed in the Nebraska Panhandle along and north of a stationary front. As storms moved east into deeper low level moisture, coverage and severity increased. Damaging winds, large hail and flash flooding was reported over the eastern Nebraska Panhandle along with portions of north central Nebraska. CSV -201105 28 410 201105 28 410 52002 309850 KANSAS 20 2011 May Hail C 107 LINN EAX 28-MAY-11 04:10:00 CST-6 28-MAY-11 04:10:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 S MOUND CITY 1 S MOUND CITY 38.14 -94.82 38.14 -94.82 An isolated severe thunderstorm caused hail, in the early morning hours of May 28, 2011. CSV -201105 21 1727 201105 21 1727 52005 309868 KANSAS 20 2011 May Hail C 5 ATCHISON EAX 21-MAY-11 17:27:00 CST-6 21-MAY-11 17:27:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.25 \N \N \N 0 N MUSCOTAH 0 N MUSCOTAH 39.55 -95.52 39.55 -95.52 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1738 201105 21 1738 52005 309869 KANSAS 20 2011 May Hail C 5 ATCHISON EAX 21-MAY-11 17:38:00 CST-6 21-MAY-11 17:38:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.88 \N \N \N 0 N EFFINGHAM 0 N EFFINGHAM 39.52 -95.4 39.52 -95.4 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1745 201105 21 1745 52005 309870 KANSAS 20 2011 May Hail C 43 DONIPHAN EAX 21-MAY-11 17:45:00 CST-6 21-MAY-11 17:45:00 0 0 0 0 0.00K 0.00K Emergency Manager 2.75 \N \N \N 1 N HIGHLAND 1 N HIGHLAND 39.86 -95.27 39.86 -95.27 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201106 8 2335 201106 8 2336 53803 322392 MICHIGAN 26 2011 June Thunderstorm Wind C 27 CASS IWX 08-JUN-11 23:35:00 EST-5 08-JUN-11 23:36:00 0 0 0 0 0.00K 0.00K County Official 50 EG \N \N \N 3 SSW BARRON LAKE 3 SSW BARRON LAKE 41.7826 -86.1865 41.7826 -86.1865 Unstable conditions were in place along the edge of strong ridging across the region. Steep lapse rates and moderate shear allowed thunderstorms to develop on lake breeze boundaries. Local law enforcement reported a tree down onto power lines at the intersection of U.S. 12 and Gumwood Road. CSV -201106 8 2300 201106 8 2301 53803 322393 MICHIGAN 26 2011 June Thunderstorm Wind C 21 BERRIEN IWX 08-JUN-11 23:00:00 EST-5 08-JUN-11 23:01:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 1 NE THREE OAKS 1 NE THREE OAKS 41.8104 -86.5888 41.8104 -86.5888 Unstable conditions were in place along the edge of strong ridging across the region. Steep lapse rates and moderate shear allowed thunderstorms to develop on lake breeze boundaries. Local law enforcement reported scattered trees and power lines down across the county. CSV -201106 15 1255 201106 15 1305 54015 323652 MICHIGAN 26 2011 June Strong Wind Z 80 BRANCH IWX 15-JUN-11 12:55:00 EST-5 15-JUN-11 13:05:00 0 0 0 0 25.00K 0.00K Emergency Manager 49 EG \N \N \N \N \N \N \N \N \N A weakening complex of thunderstorms moved into portions of northern Indiana and southern Lower Michigan. The thunderstorms were not able to mix down the stronger winds aloft as they moved through. However, a wake low behind the complex, in the somewhat cooler air, was able to mix down winds generally in the 30 to 40 mph range. While isolated reports of tree limbs down were received, damage across portions of Branch county was a bit more widespread. Emergency management officials reported trees and power lines down in roughly 15 locations across the county. Damage is estimated at around $25,000. CSV -201106 11 1447 201106 11 1519 53682 321927 GEORGIA 13 2011 June Thunderstorm Wind C 149 HEARD FFC 11-JUN-11 14:47:00 EST-5 11-JUN-11 15:19:00 0 0 0 0 3.00K 0.00K County Official 50 EG \N \N \N 0 N ROOSTERVILLE 7 ESE CENTRALHATCHEE 33.4 -85.18 33.3312 -85.068 An upper short wave was moving from the central into the eastern U.S. around a subtropical ridge located over south Texas. A cold front accompanied the short wave. A warm, moist, unstable air mass continued across the southeastern U.S. The combination of these features provided ample support for scattered to numerous thunderstorms during the afternoon and evening hours. A number of these became strong producing penny-sized hail. Isolated storms became severe producing quarter-sized hail and damaging downburst winds. The most notable storm affected Jackson county in northeast Georgia where damaging downburst winds caused considerable damage to a large commercial building. The Heard County 911 Center reported that several trees were down in various areas throughout the county. At least two separate severe thunderstorms affected the county between 445 pm and 530 pm, one between Centralhatchee and Rooserville in the northwest part of the county, and another betweeen Centralhatchee and Powers Crossroads in the east central part of the county. CSV -201106 24 1912 201106 24 1948 54421 327853 GEORGIA 13 2011 June Thunderstorm Wind C 77 COWETA FFC 24-JUN-11 19:12:00 EST-5 24-JUN-11 19:48:00 0 0 0 0 0.00K 0.00K County Official 50 EG \N \N \N 0 N ROSCOE 0 N SHARPSBURG 33.5 -84.82 33.33 -84.65 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The Coweta County 911 Center reported that at least 11 trees were down across the county. CSV -201106 24 1808 201106 24 1808 54421 327855 GEORGIA 13 2011 June Thunderstorm Wind C 97 DOUGLAS FFC 24-JUN-11 18:08:00 EST-5 24-JUN-11 18:08:00 0 0 0 0 20.00K 0.00K County Official 36 EG \N \N \N 0 ENE CHAPEL HILL 0 ENE CHAPEL HILL 33.68 -84.72 33.68 -84.72 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The Douglas County 911 Center reported that a tree fell on a vehicle on Bomar Road in Chapel Hill. CSV -201108 14 1900 201108 14 2315 55115 331166 IDAHO 16 2011 August Wildfire Z 15 SOUTHWEST HIGHLANDS BOI 14-AUG-11 19:00:00 MST-7 14-AUG-11 23:15:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Lightning set off many wildfires across parts of Southwest Idaho on the evening of the 14th. A 30 to 50 square mile hot spot was detected on satellite imagery after lightning occured across the area on the evening of the 14th. CSV -201107 31 1230 201107 31 1230 55056 330881 FLORIDA 12 2011 July Lightning C 103 PINELLAS TBW 31-JUL-11 12:30:00 EST-5 31-JUL-11 12:30:00 1 0 0 0 0.00K 0.00K Broadcast Media \N \N \N \N 0 N TREASURE ISLAND 0 N TREASURE ISLAND 27.77 -82.77 27.77 -82.77 Scattered afternoon seabreeze thunderstorms developed along the coast. A female was struck by lightning and injured from one thunderstorm. An 18-year-old female was struck by lightning while getting out of a pool on Treasure Island. She was transported to the hospital with minor injuries. CSV -201106 26 2332 201106 26 2332 54109 324427 MISSOURI 29 2011 June Hail C 3 ANDREW EAX 26-JUN-11 23:32:00 CST-6 26-JUN-11 23:32:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 4 SW AVENUE CITY 4 SW AVENUE CITY 39.83 -94.83 39.83 -94.83 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. CSV -201106 26 2346 201106 26 2346 54109 324434 MISSOURI 29 2011 June Thunderstorm Wind C 121 MACON EAX 26-JUN-11 23:46:00 CST-6 26-JUN-11 23:46:00 0 0 0 0 0.00K 0.00K Public 61 EG \N \N \N 1 E BEVIER 1 E BEVIER 39.75 -92.56 39.75 -92.56 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 70 mph. Many tree branches are reported down. A swing set was also blown over. CSV -201106 26 2247 201106 26 2247 54109 324436 MISSOURI 29 2011 June Thunderstorm Wind C 211 SULLIVAN EAX 26-JUN-11 22:47:00 CST-6 26-JUN-11 22:47:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 0 N HUMPHREYS 0 N HUMPHREYS 40.13 -93.32 40.13 -93.32 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. A large tree was reported blown down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 27 7 201106 27 7 54109 324439 MISSOURI 29 2011 June Hail C 5 ATCHISON EAX 27-JUN-11 00:07:00 CST-6 27-JUN-11 00:07:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 N WESTBORO 1 N WESTBORO 40.54 -95.32 40.54 -95.32 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. CSV -201106 26 2220 201106 26 2220 54109 324441 MISSOURI 29 2011 June Thunderstorm Wind C 61 DAVIESS EAX 26-JUN-11 22:20:00 CST-6 26-JUN-11 22:20:00 0 0 0 0 0.00K 0.00K Law Enforcement 61 EG \N \N \N 1 W PATTONSBURG 1 W PATTONSBURG 40.05 -94.14 40.05 -94.14 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Car was reported to have been blown off a road in old Pattonsburg. Thunderstorm wind gusts were estimated up to 70 mph. CSV -201106 26 2304 201106 26 2304 54109 324442 MISSOURI 29 2011 June Thunderstorm Wind C 115 LINN EAX 26-JUN-11 23:04:00 CST-6 26-JUN-11 23:04:00 0 0 0 0 0.00K 0.00K Amateur Radio 52 EG \N \N \N 1 N MEADVILLE 1 N MEADVILLE 39.79 -93.3 39.79 -93.3 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2310 201106 26 2310 54109 324443 MISSOURI 29 2011 June Thunderstorm Wind C 115 LINN EAX 26-JUN-11 23:10:00 CST-6 26-JUN-11 23:10:00 0 0 0 0 1.00K 0.00K Emergency Manager 61 EG \N \N \N 1 E MARCELINE 1 E MARCELINE 39.72 -92.95 39.72 -92.95 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Numerous trees were reported down with one building damaged. Thunderstorm wind gusts were estimated up to 70 mph. CSV -201106 2 1742 201106 2 1742 54513 327579 LOUISIANA 22 2011 June Thunderstorm Wind C 39 EVANGELINE LCH 02-JUN-11 17:42:00 CST-6 02-JUN-11 17:42:00 0 0 0 0 50.00K 0.00K Public 50 EG \N \N \N 1 NW VILLE PLATTE 1 NW VILLE PLATTE 30.69 -92.28 30.69 -92.28 A tropical wave moving across the northwest Gulf of Mexico provided an environment for scattered severe thunderstorms across southwest Louisiana. Several trees were blown down, some falling on homes. Minor roof damage was reported. CSV -201107 1 0 201107 31 2359 55299 332091 FLORIDA 12 2011 July Drought Z 72 METRO BROWARD COUNTY MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Severe to extreme drought conditions remained over the area through the end of the month. CSV -201107 1 0 201107 31 2359 55299 332092 FLORIDA 12 2011 July Drought Z 172 COASTAL BROWARD COUNTY MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Severe to extreme drought conditions remained over the area through the end of the month. CSV -201107 1 0 201107 31 2359 55299 332093 FLORIDA 12 2011 July Drought Z 73 INLAND MIAMI-DADE MFL 01-JUL-11 00:00:00 EST-5 31-JUL-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Near to above normal July rainfall across South Florida began to improve severe to exceptional drought conditions over South Florida, with interior and western sections of the southern peninsula improving to only moderate drought conditions by the middle to end of the month. Drought conditions lessened over the area as July rainfall was near to above average. Ground water levels began to increase as a result of the seasonably high rainfall. The level of Lake Okeechobee increased to over 10 feet, but was still over 3 feet below normal levels. Moderate to severe drought conditions remained over the area through the end of the month. CSV -201106 17 2215 201106 17 2215 53572 320752 KANSAS 20 2011 June Thunderstorm Wind C 17 CHASE ICT 17-JUN-11 22:15:00 CST-6 17-JUN-11 22:15:00 0 0 0 0 0.00K 0.00K Law Enforcement 65 EG \N \N \N 3 ESE COTTONWOOD FALLS 3 ESE COTTONWOOD FALLS 38.35 -96.49 38.35 -96.49 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. A train was derailed due to the strong winds. CSV -201106 17 2231 201106 17 2231 53572 320753 KANSAS 20 2011 June Hail C 79 HARVEY ICT 17-JUN-11 22:31:00 CST-6 17-JUN-11 22:31:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.5 \N \N \N 2 NE NEWTON ARPT 2 NE NEWTON ARPT 38.07 -97.26 38.07 -97.26 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2240 201106 17 2240 53572 320755 KANSAS 20 2011 June Hail C 79 HARVEY ICT 17-JUN-11 22:40:00 CST-6 17-JUN-11 22:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.5 \N \N \N 4 SSE NEWTON 4 SSE NEWTON 38.0015 -97.3281 38.0015 -97.3281 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Hail was reported near the Newton Outlet Mall. CSV -201106 29 1150 201106 29 1630 54379 326491 UTAH 49 2011 June High Wind Z 5 GREAT SALT LAKE DESERT AND MOUNTAINS SLC 29-JUN-11 11:50:00 MST-7 29-JUN-11 16:30:00 0 0 0 0 0.00K 0.00K Mesonet 63 MG \N \N \N \N \N \N \N \N \N Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. Maximum recorded wind gusts across the west desert included 73 mph at Upper Cedar Mountain, 64 mph at Camel Back Mountain, 60 mph at Wendover Peak and English Village, 59 mph at Salt Flats and V-Grid, and 58 mph at Playa Station. CSV -201106 29 1437 201106 29 1445 54379 326531 UTAH 49 2011 June Thunderstorm Wind C 7 CARBON SLC 29-JUN-11 14:37:00 MST-7 29-JUN-11 14:45:00 0 0 0 0 0.00K 0.00K ASOS 54 MG \N \N \N 0 N (PUC)CARBON CO ARPT 0 N (PUC)CARBON CO ARPT 39.62 -110.75 39.62 -110.75 Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. The Price ASOS recorded several minutes of severe wind gusts, with a maximum recorded gust of 62 mph. CSV -201106 28 1620 201106 28 1620 54379 326532 UTAH 49 2011 June High Wind Z 15 WEST CENTRAL UTAH SLC 28-JUN-11 16:20:00 MST-7 28-JUN-11 16:20:00 0 0 0 0 0.00K 0.00K Mesonet 55 MG \N \N \N \N \N \N \N \N \N Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. The U.S. 6 at Eureka sensor recorded a maximum wind gust of 63 mph. CSV -201106 29 1630 201106 29 1630 54379 326540 UTAH 49 2011 June High Wind Z 15 WEST CENTRAL UTAH SLC 29-JUN-11 16:30:00 MST-7 29-JUN-11 16:30:00 0 0 0 0 0.00K 0.00K Mesonet 51 MG \N \N \N \N \N \N \N \N \N Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. The U.S. 6 at Eureka sensor recorded a maximum wind gust of 59 mph. CSV -201106 29 1334 201106 29 1334 54379 326543 UTAH 49 2011 June High Wind Z 16 SOUTHWEST UTAH SLC 29-JUN-11 13:34:00 MST-7 29-JUN-11 13:34:00 0 0 0 0 0.00K 0.00K RAWS 50 MG \N \N \N \N \N \N \N \N \N Strong gusty winds occurred across much of the state of Utah at the tail end of the month. A few isolated severe gusts were observed on June 28th, with stronger winds on June 29th. These winds were both synoptic-scale winds due to a storm system moving through the region, as well as due to severe thunderstorms. The Brimstone Reservoir RAWS recorded a maximum wind gust of 58 mph. CSV -201106 2 1825 201106 2 1825 54513 327580 LOUISIANA 22 2011 June Thunderstorm Wind C 39 EVANGELINE LCH 02-JUN-11 18:25:00 CST-6 02-JUN-11 18:25:00 0 0 0 0 10.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N PINE PRAIRIE 0 N PINE PRAIRIE 30.78 -92.42 30.78 -92.42 A tropical wave moving across the northwest Gulf of Mexico provided an environment for scattered severe thunderstorms across southwest Louisiana. Numerous trees were blown down. CSV -201106 24 1733 201106 24 1737 54421 327858 GEORGIA 13 2011 June Hail C 59 CLARKE FFC 24-JUN-11 17:33:00 EST-5 24-JUN-11 17:37:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 2 E ATHENS 0 E WINTERVILLE 33.95 -83.3486 33.97 -83.28 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The public observed penny-sized hail on the east side of Athens. CSV -201106 24 1655 201106 24 1700 54421 327859 GEORGIA 13 2011 June Hail C 67 COBB FFC 24-JUN-11 16:55:00 EST-5 24-JUN-11 17:00:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 1 N ACWORTH 2 N KENNESAW 34.0872 -84.67 34.0446 -84.62 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. The Cobb County Emergency Management Director reported penny-sized hail near Acworth. CSV -201106 7 1613 201106 7 1615 54334 326266 ALABAMA 1 2011 June Thunderstorm Wind C 99 MONROE MOB 07-JUN-11 16:13:00 CST-6 07-JUN-11 16:15:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 5 WSW URIAH 5 WSW URIAH 31.2723 -87.5782 31.2723 -87.5782 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew down trees in several areas across southern Monroe county. CSV -201106 7 1708 201106 7 1710 54334 326268 ALABAMA 1 2011 June Hail C 129 WASHINGTON MOB 07-JUN-11 17:08:00 CST-6 07-JUN-11 17:10:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 N TOPTON 0 N TOPTON 31.28 -88.15 31.28 -88.15 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. CSV -201106 7 1720 201106 7 1722 54334 326276 ALABAMA 1 2011 June Thunderstorm Wind C 129 WASHINGTON MOB 07-JUN-11 17:20:00 CST-6 07-JUN-11 17:22:00 0 0 0 0 3.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N VINEGAR BEND 0 N VINEGAR BEND 31.27 -88.35 31.27 -88.35 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew several trees down. CSV -201108 1 0 201108 31 2359 54907 329885 ALABAMA 1 2011 August Drought Z 68 GENEVA TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D1-D2 drought conditions (moderate to severe) across Coffee and Dale counties and D2-D3 drought conditions (severe to extreme) across Henry, Houston, and Geneva counties. Below average rainfall fell during the month, and drought conditions worsened to D2-D3 status across all of the counties by the end of the month and continued into September. CSV -201106 17 2339 201106 17 2339 53572 320765 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:39:00 CST-6 17-JUN-11 23:39:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 2 ESE EL DORADO RES 2 ESE EL DORADO RES 37.8562 -96.7837 37.8562 -96.7837 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Hail was reported at Bluestem Point at El Dorado Lake. CSV -201106 17 2359 201106 17 2359 53572 320766 KANSAS 20 2011 June Hail C 73 GREENWOOD ICT 17-JUN-11 23:59:00 CST-6 17-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 5 SSW TETERVILLE 5 SSW TETERVILLE 37.96 -96.46 37.96 -96.46 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 18 43 201106 18 43 53572 320767 KANSAS 20 2011 June Thunderstorm Wind C 167 RUSSELL ICT 18-JUN-11 00:43:00 CST-6 18-JUN-11 00:43:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 8 E MILBERGER 8 E MILBERGER 38.73 -98.77 38.73 -98.77 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Estimated gust reported by a trained spotter. CSV -201106 18 50 201106 18 50 53572 320768 KANSAS 20 2011 June Thunderstorm Wind C 167 RUSSELL ICT 18-JUN-11 00:50:00 CST-6 18-JUN-11 00:50:00 0 0 0 0 0.00K 0.00K Emergency Manager 70 EG \N \N \N 7 W MILBERGER 7 W MILBERGER 38.73 -99.05 38.73 -99.05 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. The strong winds snapped the steel pole of a basketball goal. CSV -201106 18 112 201106 18 112 53572 320771 KANSAS 20 2011 June Thunderstorm Wind C 159 RICE ICT 18-JUN-11 01:12:00 CST-6 18-JUN-11 01:12:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 0 N LYONS 0 N LYONS 38.35 -98.2 38.35 -98.2 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Estimated gust reported by a Law Enforcement official. CSV -201106 18 137 201106 18 137 53572 320775 KANSAS 20 2011 June Thunderstorm Wind C 113 MCPHERSON ICT 18-JUN-11 01:37:00 CST-6 18-JUN-11 01:37:00 0 0 0 0 0.00K 0.00K AWOS 54 MG \N \N \N 1 W MC PHERSON ARPT 1 W MC PHERSON ARPT 38.35 -97.69 38.35 -97.69 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Measured at the McPherson Airport. CSV -201106 18 140 201106 18 140 53572 320776 KANSAS 20 2011 June Thunderstorm Wind C 113 MCPHERSON ICT 18-JUN-11 01:40:00 CST-6 18-JUN-11 01:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 55 MG \N \N \N 1 E MC PHERSON 1 E MC PHERSON 38.37 -97.66 38.37 -97.66 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Measured wind gust reported by a trained spotter. CSV -201106 30 1715 201106 30 1715 54300 325948 NEBRASKA 31 2011 June Hail C 49 DEUEL LBF 30-JUN-11 17:15:00 MST-7 30-JUN-11 17:15:00 0 0 0 0 0.00K 0.00K COOP Observer 0.75 \N \N \N 1 SE BIG SPGS 1 SE BIG SPGS 41.06 -102.07 41.06 -102.07 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 25 2157 201106 25 2157 51486 306043 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 54 W END OF THE 7 MILE BRIDGE TO KEY W OUT 20NM KEY 25-JUN-11 21:57:00 EST-5 25-JUN-11 21:57:00 0 0 0 0 0.00K 0.00K Official NWS Observations 39 MG \N \N \N 1 WNW KEY WEST 1 WNW KEY WEST 24.5534 -81.7883 24.5534 -81.7883 Southerly steering flow enabled outflow boundaries from thunderstorms along the northern Cuba coastline to produce additional thunderstorm development across the Florida Straits. Localized gale-force wind gusts occurred with the thunderstorms near Key West and the Dry Tortugas. A wind gust of 39 knots...45 mph...was measured by the RSOIS sensor at the National Weather Service office in Key West. CSV -201106 25 2157 201106 25 2157 51486 306047 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 75 KEY W TO DRY TORTUGAS WATERS KEY 25-JUN-11 21:57:00 EST-5 25-JUN-11 21:57:00 0 0 0 0 0.00K 0.00K C-MAN Station 34 MG \N \N \N 10 SW KEY WEST 10 SW KEY WEST 24.46 -81.88 24.46 -81.88 Southerly steering flow enabled outflow boundaries from thunderstorms along the northern Cuba coastline to produce additional thunderstorm development across the Florida Straits. Localized gale-force wind gusts occurred with the thunderstorms near Key West and the Dry Tortugas. A wind gust of 34 knots...39 mph...was measured at Sand Key Light. CSV -201106 26 136 201106 26 136 51486 306052 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 75 KEY W TO DRY TORTUGAS WATERS KEY 26-JUN-11 01:36:00 EST-5 26-JUN-11 01:36:00 0 0 0 0 0.00K 0.00K C-MAN Station 37 MG \N \N \N 10 NE DRY TORTUGAS 10 NE DRY TORTUGAS 24.69 -82.77 24.69 -82.77 Southerly steering flow enabled outflow boundaries from thunderstorms along the northern Cuba coastline to produce additional thunderstorm development across the Florida Straits. Localized gale-force wind gusts occurred with the thunderstorms near Key West and the Dry Tortugas. A wind gust of 37 knots...43 mph...was measured at Pulaski Shoal Light. CSV -201107 29 1210 201107 29 1212 54622 328009 NEVADA 32 2011 July Thunderstorm Wind C 11 EUREKA LKN 29-JUL-11 12:10:00 PST-8 29-JUL-11 12:12:00 0 0 0 0 0.00K 0.00K ASOS 50 MG \N \N \N 0 N (P68)EUREKA 0 N (P68)EUREKA 39.6 -116 39.6 -116 Thunderstorm winds gusted to 58 mph at the Eureka airport. CSV -201107 31 1940 201107 31 1940 53232 318345 GEORGIA 13 2011 July Thunderstorm Wind C 305 WAYNE JAX 31-JUL-11 19:40:00 EST-5 31-JUL-11 19:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 50 EG \N \N \N 4 WNW DOCTORTOWN 4 WNW DOCTORTOWN 31.67 -81.89 31.67 -81.89 A surface trough was across the forecast area. This boundary in addition to active sea breezes and a passing upper level short wave trough produced scattered severe storms in the afternoon and evening. Trees and power lines were blown down. A tin roof was blown off a shed. CSV -201107 31 1940 201107 31 1940 53232 318346 GEORGIA 13 2011 July Hail C 305 WAYNE JAX 31-JUL-11 19:40:00 EST-5 31-JUL-11 19:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 4 WNW DOCTORTOWN 4 WNW DOCTORTOWN 31.67 -81.89 31.67 -81.89 A surface trough was across the forecast area. This boundary in addition to active sea breezes and a passing upper level short wave trough produced scattered severe storms in the afternoon and evening. CSV -201108 1 0 201108 31 2359 54909 329888 FLORIDA 12 2011 August Drought Z 13 CALHOUN TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329889 FLORIDA 12 2011 August Drought Z 8 CENTRAL WALTON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329890 FLORIDA 12 2011 August Drought Z 112 COASTAL BAY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329892 FLORIDA 12 2011 August Drought Z 115 COASTAL FRANKLIN TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329893 FLORIDA 12 2011 August Drought Z 114 COASTAL GULF TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329894 FLORIDA 12 2011 August Drought Z 118 COASTAL JEFFERSON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201106 18 1703 201106 18 1703 53573 320789 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:03:00 CST-6 18-JUN-11 17:03:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 2 SE ARKANSAS CITY 2 SE ARKANSAS CITY 37.0484 -97.0186 37.0484 -97.0186 Strong storms produced widespread hail across much of South Central and Southeast Kansas. Hail was reported at the waste water plant on the southeast side of town. CSV -201106 18 1710 201106 18 1710 53573 320790 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:10:00 CST-6 18-JUN-11 17:10:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 E ARKANSAS CITY 1 E ARKANSAS CITY 37.07 -97.04 37.07 -97.04 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 18 1712 201106 18 1712 53573 320791 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:12:00 CST-6 18-JUN-11 17:12:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 2 W MAPLE CITY 2 W MAPLE CITY 37.05 -96.82 37.05 -96.82 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 30 1715 201106 30 1715 54300 325949 NEBRASKA 31 2011 June Hail C 49 DEUEL LBF 30-JUN-11 17:15:00 MST-7 30-JUN-11 17:15:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 1 SSE BIG SPGS 1 SSE BIG SPGS 41.05 -102.07 41.05 -102.07 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 18 1659 201106 18 1710 54264 326167 GEORGIA 13 2011 June Hail C 67 COBB FFC 18-JUN-11 16:59:00 EST-5 18-JUN-11 17:10:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 3 W SMYRNA 5 SE SMYRNA 33.88 -84.5723 33.834 -84.4645 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The public observed quarter-sized hail near and just south of Smyrna. CSV -201106 27 1310 201106 27 1310 54631 328056 GEORGIA 13 2011 June Lightning C 121 FULTON FFC 27-JUN-11 13:10:00 EST-5 27-JUN-11 13:10:00 0 0 0 0 150.00K 0.00K Emergency Manager \N \N \N \N 12 WSW ATLANTA 12 WSW ATLANTA 33.7035 -84.593 33.7035 -84.593 A strong subtropical ridge remained across the Southern Plains and was beginning to expand slightly eastward into the Mid-South. However, a weak upper trough lingered across central Georgia. Numerous outflow boundaries remained across the area from overnight thunderstorms. With a moist, unstable, hot atmosphere remaining in place, scattered thunderstorms were once again the rule. However, most of the activity on this day was confined to west central, southwest, and the western parts of Middle Georgia. The Fulton County Emergency Management Director reported that a home in west central Fulton county, just southeast of Sandtown, was struck and set on fire by lightning. The structure sustained at least moderate damage. CSV -201106 30 1819 201106 30 1837 54639 328073 GEORGIA 13 2011 June Thunderstorm Wind C 175 LAURENS FFC 30-JUN-11 18:19:00 EST-5 30-JUN-11 18:37:00 0 0 0 0 7.00K 0.00K Emergency Manager 52 EG \N \N \N 6 NE MINTER 0 NE LOWERY 32.5445 -82.6735 32.35 -82.8 A stationary front was draped across south Georgia. A persistent strong subtropical ridge remained over the south central U.S. with an equally persistent weak upper trough lingering over the southeast U.S. A hot, humid, air mass remained in place across central and south Georgia and was sufficient for isolated thunderstorms to develop across this portion of the state during the afternoon. The activity moved west and southwest around the southeast side of the subtropical ridge. Damaging winds were once again the main issue. The Laurens County Emergency Management Director reported that several trees and power lines were down across the southeast part of the county from near Scott on the Johnson county line southwest to Lowery. Some of the downed power lines caused grass fires as well. CSV -201106 12 1534 201106 12 1534 54059 325073 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 12-JUN-11 15:34:00 EST-5 12-JUN-11 15:34:00 0 0 0 0 0.90K 0.00K State Official 50 EG \N \N \N 2 SW LONE JACK 2 SW LONE JACK 37.3272 -79.1541 37.3272 -79.1541 Scattered showers and storms accompanied the passage of a cold front. Some of these storms increased to severe levels with damaging winds and large hail in areas along and east of the crest of the Blue Ridge. Thunderstorm winds blew one tree down on Candlers Mountain Road. Damage values are estimated. CSV -201106 16 2000 201106 16 2008 54215 325086 VIRGINIA 51 2011 June Thunderstorm Wind C 31 CAMPBELL RNK 16-JUN-11 20:00:00 EST-5 16-JUN-11 20:08:00 0 0 0 0 5.00K 0.00K Department of Highways 55 EG \N \N \N 1 W TIMBERLAKE 1 WSW TIMBERLAKE 37.33 -79.27 37.32 -79.27 Isolated thunderstorms developed along the Route 460 corridor between Bedford and Buckingham VA. Quarter size hail and damaging winds occurred with a few of these storms. Thunderstorm winds downed trees and tree limbs within a one mile swath. Tree limbs also fell on power lines. Damage values are estimated. CSV -201106 16 1924 201106 16 1924 54215 325087 VIRGINIA 51 2011 June Hail C 19 BEDFORD RNK 16-JUN-11 19:24:00 EST-5 16-JUN-11 19:24:00 0 0 0 0 Public 1 \N \N \N 2 NNE BEDFORD CITY 2 NNE BEDFORD CITY 37.36 -79.51 37.36 -79.51 Isolated thunderstorms developed along the Route 460 corridor between Bedford and Buckingham VA. Quarter size hail and damaging winds occurred with a few of these storms. CSV -201105 1 0 201105 31 2359 52262 311820 NEW MEXICO 35 2011 May Drought Z 514 SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 9500 FEET ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 7 305 201106 7 305 53772 322223 MINNESOTA 27 2011 June Hail C 61 ITASCA DLH 07-JUN-11 03:05:00 CST-6 07-JUN-11 03:05:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N BIGFORK 0 N BIGFORK 47.75 -93.65 47.75 -93.65 A stationary front set up through central Minnesota. Very warm and unstable air was lifted over the cold surface air to the north, touching off a few severe thunderstorms. A wind gust of 30 knots was also measured. CSV -201106 2 1945 201106 2 1945 54513 327575 LOUISIANA 22 2011 June Hail C 11 BEAUREGARD LCH 02-JUN-11 19:45:00 CST-6 02-JUN-11 19:45:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 4 E CARSON 4 E CARSON 30.75 -93.25 30.75 -93.25 A tropical wave moving across the northwest Gulf of Mexico provided an environment for scattered severe thunderstorms across southwest Louisiana. CSV -201106 2 2100 201106 2 2100 54513 327577 LOUISIANA 22 2011 June Hail C 3 ALLEN LCH 02-JUN-11 21:00:00 CST-6 02-JUN-11 21:00:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 N KINDER 1 N KINDER 30.49 -92.85 30.49 -92.85 A tropical wave moving across the northwest Gulf of Mexico provided an environment for scattered severe thunderstorms across southwest Louisiana. CSV -201106 17 2338 201106 17 2338 53572 320764 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:38:00 CST-6 17-JUN-11 23:38:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 2 E EL DORADO RES 2 E EL DORADO RES 37.87 -96.78 37.87 -96.78 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 30 1745 201106 30 1745 54300 325952 NEBRASKA 31 2011 June Hail C 101 KEITH LBF 30-JUN-11 17:45:00 MST-7 30-JUN-11 17:45:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 6 N LEMOYNE 6 N LEMOYNE 41.36 -101.8 41.36 -101.8 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. Winds gusted to approximately 50 mph as the storm passed. CSV -201106 30 1633 201106 30 1633 54300 325953 NEBRASKA 31 2011 June Thunderstorm Wind C 49 DEUEL LBF 30-JUN-11 16:33:00 MST-7 30-JUN-11 16:33:00 0 0 0 0 0.00K 0.00K COOP Observer 54 MG \N \N \N 1 SE BIG SPGS 1 SE BIG SPGS 41.06 -102.07 41.06 -102.07 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 24 500 201106 24 500 51648 306962 MISSOURI 29 2011 June Hail C 77 GREENE SGF 24-JUN-11 05:00:00 CST-6 24-JUN-11 05:00:00 0 0 0 0 0.00K 0.00K NWS Employee 0.75 \N \N \N 1 NE EBENEZER 1 NE EBENEZER 37.34 -93.31 37.34 -93.31 A line of thunderstorms, with a few embedded strong cells, moved across the region. The strongest storms produced up to quarter sized hail. CSV -201106 24 525 201106 24 525 51648 306963 MISSOURI 29 2011 June Hail C 29 CAMDEN SGF 24-JUN-11 05:25:00 CST-6 24-JUN-11 05:25:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 NNW PLEASANT GROVE 1 NNW PLEASANT GROVE 37.97 -92.91 37.97 -92.91 A line of thunderstorms, with a few embedded strong cells, moved across the region. The strongest storms produced up to quarter sized hail. Hail to the size of quarters was reported at the intersection of Highways 54 and J. CSV -201106 24 525 201106 24 525 51648 306964 MISSOURI 29 2011 June Hail C 77 GREENE SGF 24-JUN-11 05:25:00 CST-6 24-JUN-11 05:25:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 0 N MUMFORD 0 N MUMFORD 37.18 -93.22 37.18 -93.22 A line of thunderstorms, with a few embedded strong cells, moved across the region. The strongest storms produced up to quarter sized hail. CSV -201106 24 612 201106 24 612 51648 306965 MISSOURI 29 2011 June Hail C 29 CAMDEN SGF 24-JUN-11 06:12:00 CST-6 24-JUN-11 06:12:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 NE CAMDENTON 1 NE CAMDENTON 38.01 -92.74 38.01 -92.74 A line of thunderstorms, with a few embedded strong cells, moved across the region. The strongest storms produced up to quarter sized hail. CSV -201106 21 1304 201106 21 1304 51649 306969 MISSOURI 29 2011 June Hail C 91 HOWELL SGF 21-JUN-11 13:04:00 CST-6 21-JUN-11 13:04:00 0 0 0 0 0.00K 0.00K Post Office 1 \N \N \N 1 ESE CAULFIELD 1 ESE CAULFIELD 36.61 -92.1 36.61 -92.1 A line of thunderstorms moved out of Kansas and across the Missouri Ozarks during the overnight hours. The storms produced isolated reports of hail and wind damage as they moved east. CSV -201106 26 1140 201106 26 1140 51651 306970 MISSOURI 29 2011 June Hail C 85 HICKORY SGF 26-JUN-11 11:40:00 CST-6 26-JUN-11 11:40:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 W POMME DE TERRE RES 1 W POMME DE TERRE RES 37.87 -93.4 37.87 -93.4 An area of strong to severe thunderstorms, some of which were initially super cellular, produced large hail and wind damage across portions of the Missouri Ozarks. The storms pushed out of Kansas and through southern Missouri during the afternoon hours forming a bow echo across central and south central Missouri. CSV -201106 26 1305 201106 26 1305 51651 306971 MISSOURI 29 2011 June Hail C 229 WRIGHT SGF 26-JUN-11 13:05:00 CST-6 26-JUN-11 13:05:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 1 ESE NORWOOD 1 ESE NORWOOD 37.11 -92.41 37.11 -92.41 An area of strong to severe thunderstorms, some of which were initially super cellular, produced large hail and wind damage across portions of the Missouri Ozarks. The storms pushed out of Kansas and through southern Missouri during the afternoon hours forming a bow echo across central and south central Missouri. CSV -201106 5 700 201106 7 700 51806 308620 HAWAII 15 2011 June High Surf Z 14 LANAI MAKAI HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201104 14 800 201104 14 1500 51002 301935 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 2 SE MAURERTOWN 2 SSE MAURERTOWN 38.91 -78.43 38.9061 -78.4299 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 600 was closed due to flooding on North Fork Shenandoah River. CSV -201104 14 800 201104 14 1500 51002 301936 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 2 S FISHERS HILL 2 S FISHERS HILL 38.95 -78.38 38.9583 -78.3802 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Bethel Road was closed due to flooding on the North Fork Shenandoah River. CSV -201104 14 800 201104 14 1500 51002 301939 VIRGINIA 51 2011 April Flood C 171 SHENANDOAH LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 1 S FAIRMONT SCHOOL 0 S FAIRMONT SCHOOL 39.02 -78.47 39.0245 -78.4699 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 759 was closed at Cedar Creek Road. CSV -201104 14 800 201104 14 1500 51002 301940 VIRGINIA 51 2011 April Flood C 187 WARREN LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 1 W BENTONVILLE 1 NW BENTONVILLE 38.83 -78.33 38.8425 -78.3333 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 613S was closed from Indian Hollow Road to Wilson Burke Road. CSV -201105 4 736 201105 4 736 53026 317239 ATLANTIC NORTH 88 2011 May Marine Thunderstorm Wind Z 631 CHESAPEAKE BAY WINDMILL PT TO NEW PT COMFORT VA AKQ 04-MAY-11 07:36:00 EST-5 04-MAY-11 07:36:00 0 0 0 0 0.00K 0.00K Buoy 34 MG \N \N \N 0 N RAPPAHANNOCK LIGHT STATION (RPLV2) 0 N RAPPAHANNOCK LIGHT STATION (RPLV2) 37.54 -76.02 37.54 -76.02 Scattered thunderstorms associated with a cold front produced gusty winds across portions of the Chesapeake Bay and Virginia Coastal Waters. Wind gust of 34 knots was measured at Rappahannock Light. CSV -201104 14 800 201104 14 1500 51002 301947 VIRGINIA 51 2011 April Flood C 187 WARREN LWX 14-APR-11 08:00:00 EST-5 14-APR-11 15:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 0 N FRONT ROYAL ARPT 2 SSW MILLDALE 38.9558 -78.1192 38.9794 -78.1173 Strong southerly flow at the low levels brought northward a highly moist atmosphere from the Gulf of Mexico into the Mid-Atlantic. Widespread moderate to heavy rain developed in advance of a slow moving cold front on the morning of the 14th, causing flooding. Route 624 was closed from Howellsville Road to Fairground Road. CSV -201105 24 1434 201105 24 1434 52627 314487 VIRGINIA 51 2011 May Thunderstorm Wind C 175 SOUTHAMPTON AKQ 24-MAY-11 14:34:00 EST-5 24-MAY-11 14:34:00 0 0 0 0 1.00K 0.00K Trained Spotter 52 EG \N \N \N 1 SE COURTLAND 1 SE COURTLAND 36.71 -77.06 36.71 -77.06 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Wind gust of 60 mph was estimated. CSV -201105 24 1519 201105 24 1519 52627 314496 VIRGINIA 51 2011 May Thunderstorm Wind C 650 HAMPTON (C) AKQ 24-MAY-11 15:19:00 EST-5 24-MAY-11 15:19:00 0 0 0 0 2.00K 0.00K ASOS 56 MG \N \N \N 5 N HAMPTON 5 N HAMPTON 37.09 -76.35 37.09 -76.35 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Wind gust of 56 knots (65 mph) was measured at LFI. CSV -201106 9 1810 201106 9 1810 53932 323901 VIRGINIA 51 2011 June Thunderstorm Wind C 187 WARREN LWX 09-JUN-11 18:10:00 EST-5 09-JUN-11 18:10:00 0 0 0 0 2.00K Public 50 EG \N \N \N 3 ENE MILLDALE 3 ENE MILLDALE 39.0159 -78.0576 39.0159 -78.0576 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Trees that were six inches in diameter were blown down along Howellsville Road. CSV -201106 9 1840 201106 9 1840 53932 323902 VIRGINIA 51 2011 June Thunderstorm Wind C 107 LOUDOUN LWX 09-JUN-11 18:40:00 EST-5 09-JUN-11 18:40:00 0 0 0 0 2.00K Public 56 EG \N \N \N 1 E MIDDLEBURG 1 E MIDDLEBURG 38.9673 -77.7504 38.9673 -77.7504 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Large tree limbs were blown down along Route 50. CSV -201106 11 1709 201106 11 1714 54174 324908 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 11-JUN-11 17:09:00 EST-5 11-JUN-11 17:14:00 0 0 0 0 Mesonet 38 MG \N \N \N 0 NE BISHOPS HEAD 0 NE BISHOPS HEAD 38.2211 -76.0382 38.2211 -76.0382 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. A wind gust of 38 knots was reported at Bishops Head. CSV -201106 11 1709 201106 11 1709 54174 324909 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 534 CHESAPEAKE BAY DRUM PT TO SMITH PT VA LWX 11-JUN-11 17:09:00 EST-5 11-JUN-11 17:09:00 0 0 0 0 Mesonet 35 MG \N \N \N 0 SSE LOWER HOOPERS ISLAND 0 SSE LOWER HOOPERS ISLAND 38.258 -76.179 38.258 -76.179 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. A wind gust of 35 knots was reported at Lower Hoopers Island. CSV -201106 11 1634 201106 11 1634 54174 324910 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 534 CHESAPEAKE BAY DRUM PT TO SMITH PT VA LWX 11-JUN-11 16:34:00 EST-5 11-JUN-11 16:34:00 0 0 0 0 ASOS 43 MG \N \N \N 1 ESE PATUXENT RIVER ASOS 1 ESE PATUXENT RIVER ASOS 38.2853 -76.3852 38.2853 -76.3852 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. A wind gust of 43 knots was measured at Patuxent River. CSV -201106 11 1712 201106 11 1718 54174 324911 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 11-JUN-11 17:12:00 EST-5 11-JUN-11 17:18:00 0 0 0 0 Mesonet 45 MG \N \N \N 0 NE BISHOPS HEAD 0 NE BISHOPS HEAD 38.2211 -76.0382 38.2211 -76.0382 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. A wind gust of 45 knots was measured at Bishops Head. CSV -201105 24 1925 201105 24 1925 51966 313270 OKLAHOMA 40 2011 May Thunderstorm Wind C 111 OKMULGEE TSA 24-MAY-11 19:25:00 CST-6 24-MAY-11 19:25:00 0 0 0 0 0.00K 0.00K Mesonet 58 MG \N \N \N 4 W HECTOR 4 W HECTOR 35.83 -95.9914 35.83 -95.9914 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. The Oklahoma Mesonet station west of Hectorville measured 67 mph thunderstorm wind gusts. CSV -201105 24 1816 201105 24 1816 51966 313274 OKLAHOMA 40 2011 May Hail C 37 CREEK TSA 24-MAY-11 18:16:00 CST-6 24-MAY-11 18:16:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 3 W DEPEW 3 W DEPEW 35.8 -96.5535 35.8 -96.5535 Severe thunderstorms developed along a dry line over central Oklahoma during the afternoon hours. Very unstable air and strong wind shear east of the dry line supported supercell thunderstorm structures, which persisted as the storms moved into eastern Oklahoma during the evening hours. These severe storms produced tornadoes, large hail to golfball size, and very strong damaging downburst wind across much of eastern Oklahoma. CSV -201106 1 1830 201106 1 1830 53930 323904 MARYLAND 24 2011 June Hail C 33 PRINCE GEORGE'S LWX 01-JUN-11 18:30:00 EST-5 01-JUN-11 18:30:00 0 0 0 0 Public 1.75 \N \N \N 0 WSW UPPER MARLBORO 0 WSW UPPER MARLBORO 38.8165 -76.7577 38.8165 -76.7577 A cold front passed through the region on the first. Warm and humid conditions ahead of the front allowed moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms were able to produce large hail. Golf ball sized hail was reported along Rectory Lane. CSV -201106 9 1833 201106 9 1833 53934 323906 MARYLAND 24 2011 June Hail C 21 FREDERICK LWX 09-JUN-11 18:33:00 EST-5 09-JUN-11 18:33:00 0 0 0 0 Public 1.25 \N \N \N 1 ENE WALKERSVILLE 1 ENE WALKERSVILLE 39.4852 -77.3352 39.4852 -77.3352 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Half dollar sized hail was reported near Walkersville. CSV -201106 9 1915 201106 9 1915 53934 323908 MARYLAND 24 2011 June Hail C 13 CARROLL LWX 09-JUN-11 19:15:00 EST-5 09-JUN-11 19:15:00 0 0 0 0 Public 1 \N \N \N 0 SE SHERVETTES CORNER 0 SE SHERVETTES CORNER 39.3971 -76.8964 39.3971 -76.8964 Plenty of moisture continued to rotate around high pressure over the southeastern Conus. Hot conditions combined with the moisture to cause moderate amounts of instability to develop. The instability combined with forcing from a surface trough to trigger showers and thunderstorms during the afternoon and evening hours. The moderate instability caused some thunderstorms to produce damaging wind gusts and large hail. Quarter sized hail was reported near Oakland. CSV -201106 10 1728 201106 10 1728 53935 323916 VIRGINIA 51 2011 June Hail C 3 ALBEMARLE LWX 10-JUN-11 17:28:00 EST-5 10-JUN-11 17:28:00 0 0 0 0 Public 1 \N \N \N 4 N IVY 4 N IVY 38.1028 -78.6003 38.1028 -78.6003 A surface trough combined with moderate amounts of instability to trigger showers and thunderstorms. A few thunderstorms were able to produce large hail and damaging winds across central Virginia. Quarter sized hail was reported on Garth Road. CSV -201106 12 1640 201106 12 1640 54175 324918 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 536 TIDAL POTOMAC INDIAN HD TO COBB IS MD LWX 12-JUN-11 16:40:00 EST-5 12-JUN-11 16:40:00 0 0 0 0 Trained Spotter 56 EG \N \N \N 11 NE QUANTICO 11 NE QUANTICO 38.6068 -77.1703 38.6068 -77.1703 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust was estimated to be around 65 mph based off of thunderstorm wind damage near Indian Head. CSV -201106 12 1638 201106 12 1638 54175 324919 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 536 TIDAL POTOMAC INDIAN HD TO COBB IS MD LWX 12-JUN-11 16:38:00 EST-5 12-JUN-11 16:38:00 0 0 0 0 Trained Spotter 56 EG \N \N \N 9 NNE QUANTICO 9 NNE QUANTICO 38.6105 -77.2202 38.6105 -77.2202 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust was estimated to be around 65 mph based off of thunderstorm wind damage near Indian Head. CSV -201106 12 1622 201106 12 1622 54175 324920 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 531 CHESAPEAKE BAY POOLES IS TO SANDY PT MD LWX 12-JUN-11 16:22:00 EST-5 12-JUN-11 16:22:00 0 0 0 0 Mesonet 34 MG \N \N \N 0 NNW MILLER ISLAND 0 NNW MILLER ISLAND 39.2527 -76.371 39.2527 -76.371 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 34 knots was reported at Miller Island. CSV -201106 12 1636 201106 12 1636 54175 324921 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 538 PATAPSCO RIVER INCLUDING BALTIMORE HARBOR LWX 12-JUN-11 16:36:00 EST-5 12-JUN-11 16:36:00 0 0 0 0 Buoy 34 EG \N \N \N 4 NNW RIVIERA BEACH 4 NNW RIVIERA BEACH 39.22 -76.53 39.22 -76.53 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust in excess of 30 knots was reported at the Francis Scott Key Bridge. CSV -201104 16 1359 201104 16 1359 50328 300126 VIRGINIA 51 2011 April Thunderstorm Wind C 3 ALBEMARLE LWX 16-APR-11 13:59:00 EST-5 16-APR-11 13:59:00 0 0 0 0 Fire Department/Rescue 52 EG \N \N \N 1 SE GREENWOOD 1 SE GREENWOOD 38.037 -78.757 38.037 -78.757 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down along the road. CSV -201104 16 1345 201104 16 1345 50328 300136 VIRGINIA 51 2011 April Thunderstorm Wind C 165 ROCKINGHAM LWX 16-APR-11 13:45:00 EST-5 16-APR-11 13:45:00 0 0 0 0 5.00K Trained Spotter 61 EG \N \N \N 1 ESE GROTTOES 1 ESE GROTTOES 38.2645 -78.813 38.2645 -78.813 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Trees were down and a small building was damaged near Grottoes. CSV -201105 24 1530 201105 24 1530 52627 314544 VIRGINIA 51 2011 May Thunderstorm Wind C 810 VIRGINIA BEACH (C) AKQ 24-MAY-11 15:30:00 EST-5 24-MAY-11 15:30:00 5 0 0 0 3.00K 0.00K Newspaper 50 EG \N \N \N 1 W LANDTOWN 1 W LANDTOWN 36.78 -76.1 36.78 -76.1 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Pole vault mat and other debris was blown around at Landstown High School. There were five injuries reported. CSV -201105 24 1530 201105 24 1530 52627 314545 VIRGINIA 51 2011 May Thunderstorm Wind C 550 CHESAPEAKE (C) AKQ 24-MAY-11 15:30:00 EST-5 24-MAY-11 15:30:00 0 0 0 0 5.00K 0.00K Trained Spotter 50 EG \N \N \N 1 NNW OAK GROVE 1 NNW OAK GROVE 36.75 -76.24 36.75 -76.24 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Homes in a subdivision sustained shingle and roof damage. CSV -201105 24 1530 201105 24 1530 52627 314547 VIRGINIA 51 2011 May Hail C 810 VIRGINIA BEACH (C) AKQ 24-MAY-11 15:30:00 EST-5 24-MAY-11 15:30:00 0 0 0 0 0.00K 0.00K NWS Employee 1 \N \N \N 1 WSW OCEAN PARK 1 WSW OCEAN PARK 36.89 -76.12 36.89 -76.12 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Quarter size hail was reported. CSV -201105 4 800 201105 4 800 53026 317242 ATLANTIC NORTH 88 2011 May Marine Thunderstorm Wind Z 656 CP CHARLES LT VA TO NC-VA BDR OUT 20NM AKQ 04-MAY-11 08:00:00 EST-5 04-MAY-11 08:00:00 0 0 0 0 0.00K 0.00K Buoy 36 MG \N \N \N 1 NNW CAPE HENRY 1 NNW CAPE HENRY 36.93 -76.007 36.93 -76.007 Scattered thunderstorms associated with a cold front produced gusty winds across portions of the Chesapeake Bay and Virginia Coastal Waters. Wind gust of 36 knots was measured at Cape Henry. CSV -201105 23 1927 201105 23 1927 53206 318215 ATLANTIC NORTH 88 2011 May Marine Thunderstorm Wind Z 632 MOUTH OF CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK, VA AKQ 23-MAY-11 19:27:00 EST-5 23-MAY-11 19:27:00 0 0 0 0 0.00K 0.00K ASOS 45 MG \N \N \N 0 N (KNGU)NORFOLK NAS 0 N (KNGU)NORFOLK NAS 36.94 -76.28 36.94 -76.28 Scattered thunderstorms associated with a warm front produced gusty winds across portions of the Chesapeake Bay. Wind gust of 45 knots was measured at NGU. CSV -201105 23 1937 201105 23 1937 53206 318217 ATLANTIC NORTH 88 2011 May Marine Thunderstorm Wind Z 632 MOUTH OF CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK, VA AKQ 23-MAY-11 19:37:00 EST-5 23-MAY-11 19:37:00 0 0 0 0 0.00K 0.00K Mesonet 35 MG \N \N \N 0 N THIMBLE SHOALS 0 N THIMBLE SHOALS 37.05 -76.26 37.05 -76.26 Scattered thunderstorms associated with a warm front produced gusty winds across portions of the Chesapeake Bay. Wind gust of 35 knots was measured at Thimble Shoals. CSV -201106 23 1942 201106 23 1942 51665 307123 ATLANTIC SOUTH 87 2011 June Marine Thunderstorm Wind Z 130 ALBEMARLE SOUND MHX 23-JUN-11 19:42:00 EST-5 23-JUN-11 19:42:00 0 0 0 0 0.00K 0.00K Other Federal Agency 43 MG \N \N \N 10 SE MANTEO 10 SE MANTEO 35.7856 -75.55 35.7856 -75.55 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced damaging wind gusts across the Sounds and coastal waters. National Ocean Service tide gauge ORIN7 at Oregon Inlet observed a 43 knot marine wind gust. CSV -201106 1 0 201106 30 2359 53640 321367 NEW MEXICO 35 2011 June Drought Z 30 SOUTHWEST DESERT/BOOTHILL EPZ 01-JUN-11 00:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Drought conditions persisted and got worse of much of Southern New Mexico during the month of June as the entire area was in exceptional drought by the end of the month. All of Hidalgo County started out in extreme(D3) drought, and by the end of June, the entire area was in exceptional(D4) drought. The Animas COOP only received 0.01 inches of precipitation in the month. The yearly rainfall through the month of June at the Animas COOP was only 0.07 inches. CSV -201106 5 1210 201106 5 1210 53240 318481 TENNESSEE 47 2011 June Thunderstorm Wind C 147 ROBERTSON OHX 05-JUN-11 12:10:00 CST-6 05-JUN-11 12:10:00 0 0 0 0 5.00K 0.00K Trained Spotter 52 EG \N \N \N 1 ESE BAGGETTSVILLE 1 ESE BAGGETTSVILLE 36.4736 -86.7046 36.4736 -86.7046 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Trees and signs were blown down near White House Heritage High School. CSV -201106 5 1235 201106 5 1235 53240 318482 TENNESSEE 47 2011 June Hail C 165 SUMNER OHX 05-JUN-11 12:35:00 CST-6 05-JUN-11 12:35:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 0 N WESTMORELAND 0 N WESTMORELAND 36.57 -86.25 36.57 -86.25 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. CSV -201106 5 1245 201106 5 1245 53240 318483 TENNESSEE 47 2011 June Thunderstorm Wind C 111 MACON OHX 05-JUN-11 12:45:00 CST-6 05-JUN-11 12:45:00 0 0 0 0 15.00K 0.00K Law Enforcement 52 EG \N \N \N 2 SE HAYSVILLE 2 SE HAYSVILLE 36.6062 -86.0784 36.6062 -86.0784 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Trees were blown down at the Scottsville Road and Shiloh Road intersection. Numerous trees were also blown down across other portions of western Macon County. CSV -201106 5 1315 201106 5 1315 53240 318486 TENNESSEE 47 2011 June Hail C 41 DEKALB OHX 05-JUN-11 13:15:00 CST-6 05-JUN-11 13:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N ALEXANDRIA 0 N ALEXANDRIA 36.08 -86.03 36.08 -86.03 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Nickel size hail was reported and a wind gust to 57 mph was measured. CSV -201106 5 1304 201106 5 1304 53240 318487 TENNESSEE 47 2011 June Thunderstorm Wind C 159 SMITH OHX 05-JUN-11 13:04:00 CST-6 05-JUN-11 13:04:00 0 0 0 0 2.00K 0.00K Public 48 EG \N \N \N 0 N BRUSH CREEK 0 N BRUSH CREEK 36.12 -86.03 36.12 -86.03 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Large tree branches were broken. CSV -201106 5 1310 201106 5 1310 53240 318488 TENNESSEE 47 2011 June Thunderstorm Wind C 37 DAVIDSON OHX 05-JUN-11 13:10:00 CST-6 05-JUN-11 13:10:00 0 0 0 0 2.00K 0.00K Public 43 EG \N \N \N 0 N BELLE MEADE 0 N BELLE MEADE 36.1 -86.87 36.1 -86.87 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Small trees and limbs were blown down by estimated wind gusts of 40 to 50 mph. CSV -201106 18 1300 201106 18 2200 51606 306713 LOUISIANA 22 2011 June Wildfire Z 1 CADDO SHV 18-JUN-11 13:00:00 CST-6 18-JUN-11 22:00:00 0 0 0 0 70.00K 0.00K Broadcast Media \N \N \N \N \N \N \N \N \N \N Severe drought conditions and very hot temperatures and highway sparks from a tractor trailer were the ingredients needed to ignite a large fire across northern Caddo Parish. Two camp homes have been lost to a woods fire burning between Oil City and Vivan in Caddo Parish. The northern Caddo Parish fire started early Saturday afternoon along Trees City Road, which is also LA Highway 2. The fire spread to both sides of the road. Fire crews dug trenches around the fire to try to keep it from spreading. There are some other homes in the area that were threatened by the fire. Roads had to be blocked in the area. CSV -201106 16 2020 201106 16 2020 53548 320564 TENNESSEE 47 2011 June Thunderstorm Wind C 5 BENTON OHX 16-JUN-11 20:20:00 CST-6 16-JUN-11 20:20:00 0 0 0 0 5.00K 0.00K Law Enforcement 52 EG \N \N \N 1 NW MC ILLWAIN 1 NW MC ILLWAIN 35.8818 -88.0926 35.8818 -88.0926 A cluster of thunderstorms moved into Middle Tennessee from the west during the late evening hours on June 16. One report of wind damage was received. Trees were blown down across southern portions of Benton County. CSV -201101 19 0 201101 19 2359 48705 284822 KANSAS 20 2011 January Winter Weather Z 1 CHEYENNE GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201106 1 0 201106 30 2359 53410 319660 TEXAS 48 2011 June Excessive Heat Z 165 ANGELINA SHV 01-JUN-11 00:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K NWS Employee \N \N \N \N \N \N \N \N \N \N A large upper level ridge of high pressure has remained persistent across the Plains and Mississippi Valley this month, and has resulted in numerous days where temperatures have reached or exceeded 100 degrees. Overnight temperatures have also struggled to fall much below 80 degrees as well, contributing to the oppressively hot conditions.||Below is a list of the June monthly temperatures, their departures from normal, and how they rank as the warmest Junes on record.||City, June 2011 Average Temperature, Departure from Normal, Rank||Tyler Texas, 86.8, +7.0, 1st|Note: This surpasses the old record of 86.6 degrees set in 1901. Records were|recorded in Tyler since 1896.||Longview Texas, 85.9, +6.1, 4TH|Note: The warmest June on record was 86.3 degrees set in 1911. June 2011 was|the 4th warmest June of record with records dating back to 1902.||Lufkin Texas, 84.7, +5.1, 2ND|Note: The warmest June on record was 84.9 degrees set in 1998. This June|will surpass June 2010 which had an average monthly temperature of 84.1|degrees with records dating back to 1949. CSV -201106 17 2016 201106 17 2016 53572 320715 KANSAS 20 2011 June Hail C 113 MCPHERSON ICT 17-JUN-11 20:16:00 CST-6 17-JUN-11 20:16:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 E MC PHERSON 1 E MC PHERSON 38.37 -97.66 38.37 -97.66 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2021 201106 17 2021 53572 320716 KANSAS 20 2011 June Hail C 113 MCPHERSON ICT 17-JUN-11 20:21:00 CST-6 17-JUN-11 20:21:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.5 \N \N \N 5 WSW MC PHERSON ARPT 5 WSW MC PHERSON ARPT 38.33 -97.77 38.33 -97.77 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2027 201106 17 2027 53572 320717 KANSAS 20 2011 June Hail C 113 MCPHERSON ICT 17-JUN-11 20:27:00 CST-6 17-JUN-11 20:27:00 0 0 0 0 0.00K 0.00K Trained Spotter 2 \N \N \N 3 NNW INMAN 3 NNW INMAN 38.27 -97.79 38.27 -97.79 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2028 201106 17 2028 53572 320718 KANSAS 20 2011 June Hail C 169 SALINE ICT 17-JUN-11 20:28:00 CST-6 17-JUN-11 20:28:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 2 E SALINA 2 E SALINA 38.83 -97.57 38.83 -97.57 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 12 1806 201106 12 1806 54175 324928 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 541 CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER LWX 12-JUN-11 18:06:00 EST-5 12-JUN-11 18:06:00 0 0 0 0 Buoy 34 MG \N \N \N 0 ENE CAMBRIDGE 0 ENE CAMBRIDGE 38.5727 -76.0633 38.5727 -76.0633 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 34 knots was reported near Cambridge. CSV -201104 16 1344 201104 16 1344 50328 300188 VIRGINIA 51 2011 April Thunderstorm Wind C 125 NELSON LWX 16-APR-11 13:44:00 EST-5 16-APR-11 13:44:00 0 0 0 0 Mesonet 59 MG \N \N \N 5 WNW MARTINS STORE 5 WNW MARTINS STORE 37.922 -78.949 37.922 -78.949 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A wind gust of 68 mph was reported at Wintergreen. CSV -201104 16 1442 201104 16 1442 50832 300194 WEST VIRGINIA 54 2011 April Thunderstorm Wind C 23 GRANT LWX 16-APR-11 14:42:00 EST-5 16-APR-11 14:42:00 0 0 0 0 Public 52 EG \N \N \N 1 E ROUGH RUN 1 E ROUGH RUN 38.8987 -79.1069 38.8987 -79.1069 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop.||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A thunderstorm wind gust was estimated to be around 60 mph. CSV -201104 16 1443 201104 16 1443 50832 300205 WEST VIRGINIA 54 2011 April Thunderstorm Wind C 23 GRANT LWX 16-APR-11 14:43:00 EST-5 16-APR-11 14:43:00 0 0 0 0 1.00K Public 61 EG \N \N \N 1 ENE ROUGH RUN 1 ENE ROUGH RUN 38.9044 -79.1007 38.9044 -79.1007 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop.||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Trees were down near Masonville. CSV -201104 16 1445 201104 16 1445 50832 300207 WEST VIRGINIA 54 2011 April Thunderstorm Wind C 23 GRANT LWX 16-APR-11 14:45:00 EST-5 16-APR-11 14:45:00 0 0 0 0 1.00K Fire Department/Rescue 61 EG \N \N \N 1 NE DORCAS 1 NE DORCAS 38.9426 -79.0877 38.9426 -79.0877 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop.||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down along Elkhorn Road. CSV -201106 5 1444 201106 5 1444 53240 318500 TENNESSEE 47 2011 June Hail C 35 CUMBERLAND OHX 05-JUN-11 14:44:00 CST-6 05-JUN-11 14:44:00 0 0 0 0 0.00K 0.00K CoCoRaHS 1 \N \N \N 2 E LANTANA 2 E LANTANA 35.8725 -85.0704 35.8725 -85.0704 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. CSV -201106 9 1020 201106 9 1020 53542 320500 TENNESSEE 47 2011 June Hail C 49 FENTRESS OHX 09-JUN-11 10:20:00 CST-6 09-JUN-11 10:20:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 3 S ALLARDT 3 S ALLARDT 36.3366 -84.88 36.3366 -84.88 A few strong storms affected Middle Tennessee during the late morning and afternoon hours with small hail and lightning. CSV -201106 9 1403 201106 9 1403 53542 320506 TENNESSEE 47 2011 June Lightning C 149 RUTHERFORD OHX 09-JUN-11 14:03:00 CST-6 09-JUN-11 14:03:00 0 0 0 0 50.00K 0.00K Law Enforcement \N \N \N \N 0 N LASCASSAS 0 N LASCASSAS 35.93 -86.32 35.93 -86.32 A few strong storms affected Middle Tennessee during the late morning and afternoon hours with small hail and lightning. Lightning struck a home in Lascassas. The home was damaged by the resulting fire but the extent of damage is unknown. CSV -201106 18 1105 201106 18 1105 53617 321226 TENNESSEE 47 2011 June Thunderstorm Wind C 5 BENTON OHX 18-JUN-11 11:05:00 CST-6 18-JUN-11 11:05:00 0 0 0 0 2.00K 0.00K Emergency Manager 52 EG \N \N \N 2 SW CAMDEN 2 SW CAMDEN 36.0295 -88.1253 36.0295 -88.1253 A cluster of severe thunderstorms moved across southern portions of Middle Tennessee during the late morning and early afternoon hours on June 18. Several reports of wind damage and large hail were received. A couple of trees were blown down southwest of Camden. CSV -201106 18 1140 201106 18 1140 53617 321276 TENNESSEE 47 2011 June Thunderstorm Wind C 135 PERRY OHX 18-JUN-11 11:40:00 CST-6 18-JUN-11 11:40:00 0 0 0 0 50.00K 0.00K Trained Spotter 61 EG \N \N \N 0 S LINDEN 0 S LINDEN 35.62 -87.85 35.62 -87.85 A cluster of severe thunderstorms moved across southern portions of Middle Tennessee during the late morning and early afternoon hours on June 18. Several reports of wind damage and large hail were received. One house was reportedly destroyed and another suffered structural damage in southern Perry County. CSV -201106 18 1157 201106 18 1157 53617 321282 TENNESSEE 47 2011 June Thunderstorm Wind C 81 HICKMAN OHX 18-JUN-11 11:57:00 CST-6 18-JUN-11 11:57:00 0 0 0 0 10.00K 0.00K Emergency Manager 56 EG \N \N \N 0 N CENTERVILLE 0 N CENTERVILLE 35.78 -87.47 35.78 -87.47 A cluster of severe thunderstorms moved across southern portions of Middle Tennessee during the late morning and early afternoon hours on June 18. Several reports of wind damage and large hail were received. Numerous trees were blown down across Hickman County, including along Highway 438, Highway 48, Highway 100S, and Beaverdam Road. CSV -201106 18 1215 201106 18 1215 53617 321283 TENNESSEE 47 2011 June Thunderstorm Wind C 99 LAWRENCE OHX 18-JUN-11 12:15:00 CST-6 18-JUN-11 12:15:00 0 0 0 0 5.00K 0.00K Amateur Radio 52 EG \N \N \N 0 N LAWRENCEBURG 0 N LAWRENCEBURG 35.25 -87.33 35.25 -87.33 A cluster of severe thunderstorms moved across southern portions of Middle Tennessee during the late morning and early afternoon hours on June 18. Several reports of wind damage and large hail were received. Trees were blown down with power outages in Lawrenceburg. CSV -201106 1 0 201106 30 2359 53410 319671 TEXAS 48 2011 June Excessive Heat Z 152 NACOGDOCHES SHV 01-JUN-11 00:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K NWS Employee \N \N \N \N \N \N \N \N \N \N A large upper level ridge of high pressure has remained persistent across the Plains and Mississippi Valley this month, and has resulted in numerous days where temperatures have reached or exceeded 100 degrees. Overnight temperatures have also struggled to fall much below 80 degrees as well, contributing to the oppressively hot conditions.||Below is a list of the June monthly temperatures, their departures from normal, and how they rank as the warmest Junes on record.||City, June 2011 Average Temperature, Departure from Normal, Rank||Tyler Texas, 86.8, +7.0, 1st|Note: This surpasses the old record of 86.6 degrees set in 1901. Records were|recorded in Tyler since 1896.||Longview Texas, 85.9, +6.1, 4TH|Note: The warmest June on record was 86.3 degrees set in 1911. June 2011 was|the 4th warmest June of record with records dating back to 1902.||Lufkin Texas, 84.7, +5.1, 2ND|Note: The warmest June on record was 84.9 degrees set in 1998. This June|will surpass June 2010 which had an average monthly temperature of 84.1|degrees with records dating back to 1949. CSV -201106 1 0 201106 30 2359 53410 319673 TEXAS 48 2011 June Excessive Heat Z 151 PANOLA SHV 01-JUN-11 00:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K NWS Employee \N \N \N \N \N \N \N \N \N \N A large upper level ridge of high pressure has remained persistent across the Plains and Mississippi Valley this month, and has resulted in numerous days where temperatures have reached or exceeded 100 degrees. Overnight temperatures have also struggled to fall much below 80 degrees as well, contributing to the oppressively hot conditions.||Below is a list of the June monthly temperatures, their departures from normal, and how they rank as the warmest Junes on record.||City, June 2011 Average Temperature, Departure from Normal, Rank||Tyler Texas, 86.8, +7.0, 1st|Note: This surpasses the old record of 86.6 degrees set in 1901. Records were|recorded in Tyler since 1896.||Longview Texas, 85.9, +6.1, 4TH|Note: The warmest June on record was 86.3 degrees set in 1911. June 2011 was|the 4th warmest June of record with records dating back to 1902.||Lufkin Texas, 84.7, +5.1, 2ND|Note: The warmest June on record was 84.9 degrees set in 1998. This June|will surpass June 2010 which had an average monthly temperature of 84.1|degrees with records dating back to 1949. CSV -201105 10 0 201105 24 0 52277 312086 KANSAS 20 2011 May Drought Z 52 MARION ICT 10-MAY-11 00:00:00 CST-6 24-MAY-11 00:00:00 0 0 0 0 Newspaper \N \N \N \N \N \N \N \N \N \N An extended period of dry weather continued to worsen across portions of Central and South Central Kansas during the month of May, as some areas saw little or no appreciable amounts of rainfall. Areas north of Wichita dried out even further during the middle portion of the month, pushing areas in Central Kansas, into the severe drought category (D2). A drought began to worsen across Central Kansas during the middle portion of the month. The drought reached severe levels (D2)across the area during the week of May 10th and lasted until May 24th. CSV -201106 12 1430 201106 12 1430 53940 324201 MARYLAND 24 2011 June Thunderstorm Wind C 9 CALVERT LWX 12-JUN-11 14:30:00 EST-5 12-JUN-11 14:30:00 0 0 0 0 1.00K Fire Department/Rescue 50 EG \N \N \N 0 S APPEAL 0 S APPEAL 38.364 -76.4491 38.364 -76.4491 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. A tree was blocking the intersection of HG Trueman Road and Southern Connector Boulevard in Lusby. CSV -201106 12 1527 201106 12 1527 53940 324202 MARYLAND 24 2011 June Thunderstorm Wind C 25 HARFORD LWX 12-JUN-11 15:27:00 EST-5 12-JUN-11 15:27:00 0 0 0 0 3.00K Fire Department/Rescue 52 EG \N \N \N 1 WSW SCARBORO 1 WSW SCARBORO 39.6282 -76.2893 39.6282 -76.2893 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. Trees were down near Sandy Hook Road. CSV -201106 12 1527 201106 12 1527 53940 324203 MARYLAND 24 2011 June Thunderstorm Wind C 25 HARFORD LWX 12-JUN-11 15:27:00 EST-5 12-JUN-11 15:27:00 0 0 0 0 3.00K Fire Department/Rescue 52 EG \N \N \N 1 NE GIBSON MANOR 1 NE GIBSON MANOR 39.6147 -76.3157 39.6147 -76.3157 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. Trees were down near Sandy Hook Road and Walters Mill Road. CSV -201106 6 1310 201106 6 1312 54592 327843 ALABAMA 1 2011 June Hail C 3 BALDWIN MOB 06-JUN-11 13:10:00 CST-6 06-JUN-11 13:12:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 2 N FOLEY 2 N FOLEY 30.449 -87.68 30.449 -87.68 Thunderstorms developed during the afternoon hours and produced large hail across portions of southwest Alabama. CSV -201106 12 1527 201106 12 1527 53940 324204 MARYLAND 24 2011 June Thunderstorm Wind C 25 HARFORD LWX 12-JUN-11 15:27:00 EST-5 12-JUN-11 15:27:00 0 0 0 0 2.00K Fire Department/Rescue 52 EG \N \N \N 2 N FOREST HILL 2 N FOREST HILL 39.608 -76.3843 39.608 -76.3843 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. Vehicles were blocked between two downed trees near the 2900 Block of Grier Nursery Road. CSV -201106 1 1252 201106 1 1452 54605 327944 VIRGINIA 51 2011 June Heat Z 54 ARLINGTON LWX 01-JUN-11 12:52:00 EST-5 01-JUN-11 14:52:00 0 0 0 0 ASOS \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions of northern and central Virginia during the afternoon hours. Heat indices in excess of 100 degrees were reported at Reagan National Airport. CSV -201106 1 1200 201106 1 1500 54605 327945 VIRGINIA 51 2011 June Heat Z 50 ORANGE LWX 01-JUN-11 12:00:00 EST-5 01-JUN-11 15:00:00 0 0 0 0 AWOS \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions of northern and central Virginia during the afternoon hours. Heat indices in excess of 100 degrees were reported at Orange. CSV -201106 1 1200 201106 1 1500 54605 327947 VIRGINIA 51 2011 June Heat Z 51 CULPEPER LWX 01-JUN-11 12:00:00 EST-5 01-JUN-11 15:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions of northern and central Virginia during the afternoon hours. Heat indices in excess of 100 degrees were estimated during this time. CSV -201107 14 1700 201107 14 1700 53902 322902 GEORGIA 13 2011 July Thunderstorm Wind C 19 BERRIEN TAE 14-JUL-11 17:00:00 EST-5 14-JUL-11 17:00:00 0 0 0 0 2.00K 0.00K State Official 50 EG \N \N \N 1 W RAY CITY 1 W RAY CITY 31.07 -83.2 31.07 -83.2 A weak upper level disturbance moved into the area from the north around an upper level ridge west of the area. The atmosphere was unstable enough for a few severe thunderstorms across south central Georgia, and copious amounts of moisture led to heavy rainfall amounts in some areas. A couple of trees were blown down in southern Berrien county. The monetary damage figure provided is a rough estimate. CSV -201107 24 1440 201107 24 1440 53541 320451 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:40:00 EST-5 24-JUL-11 14:40:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 2 NW HAWKSIDE 2 NW HAWKSIDE 34.79 -77.42 34.79 -77.42 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. Public reported tree limbs down across yard. CSV -201107 24 1437 201107 24 1437 53541 320452 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:37:00 EST-5 24-JUL-11 14:37:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 1 W PUMPKIN CENTER 1 W PUMPKIN CENTER 34.78 -77.38 34.78 -77.38 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. Law enforcement reported a tree down on a vehicle and powerlines across road on Piney Green Road. CSV -201107 24 1427 201107 24 1427 53541 320455 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:27:00 EST-5 24-JUL-11 14:27:00 0 0 0 0 0.00K 0.00K ASOS 59 MG \N \N \N 1 WNW (NCA)MCAS NEW RIVER 1 WNW (NCA)MCAS NEW RIVER 34.7112 -77.4409 34.7112 -77.4409 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. ASOS at New River Air Station observed a 59 knot wind gust. CSV -201107 24 1442 201107 24 1442 53541 320457 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:42:00 EST-5 24-JUL-11 14:42:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 0 NW KELLUM 0 NW KELLUM 34.8046 -77.3559 34.8046 -77.3559 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. Law enforcement reported trees down on road blocking New Bern highway in Jacksonville. CSV -201107 24 1459 201107 24 1459 53541 320458 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:59:00 EST-5 24-JUL-11 14:59:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 1 ENE KELLUMTOWN 1 ENE KELLUMTOWN 34.73 -77.3 34.73 -77.3 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. Public reported large tree limbs down on Rocky Run Road near Piney Green. CSV -201107 24 1444 201107 24 1444 53541 320459 NORTH CAROLINA 37 2011 July Thunderstorm Wind C 133 ONSLOW MHX 24-JUL-11 14:44:00 EST-5 24-JUL-11 14:44:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 2 NW HAWKSIDE 2 NW HAWKSIDE 34.7871 -77.4279 34.7871 -77.4279 A weak upper level disturbance coupled with merging surface outflow boundaries produced severe weather across eastern North Carolina on July 24, 2011. A few storms became severe with several damaging wind gusts. Public reported trees down near the intersection of Indian Drive and Gum Branch Road. CSV -201102 7 400 201102 7 1000 46733 271300 ARKANSAS 5 2011 February Winter Weather Z 16 INDEPENDENCE LZK 07-FEB-11 04:00:00 CST-6 07-FEB-11 10:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201101 9 0 201101 10 700 48101 280732 COLORADO 8 2011 January Winter Weather Z 90 YUMA COUNTY GLD 09-JAN-11 00:00:00 MST-7 10-JAN-11 07:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N A winter storm produced moderate to heavy snow across portions of northeast Colorado, resulting in school cancellations and minor traffic accidents on area roads. The most snow fell over Yuma county where a band of 6-7 inches occurred. Elsewhere, Kit Carson and Cheyenne counties in Colorado received 2-6 of snow. Snowfall totals Yuma county included: 6 in Yuma, 7 in Wray, 7 in Vernon, 6.5 in Joes and 4.5 in Idalia. CSV -201106 18 1736 201106 18 1736 53573 320794 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:36:00 CST-6 18-JUN-11 17:36:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 4 WNW BURDEN 4 WNW BURDEN 37.34 -96.82 37.34 -96.82 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201101 19 0 201101 19 2359 48705 284823 KANSAS 20 2011 January Winter Weather Z 3 DECATUR GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201101 19 0 201101 19 2359 48705 284825 KANSAS 20 2011 January Winter Weather Z 16 GRAHAM GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201101 19 0 201101 19 2359 48705 284826 KANSAS 20 2011 January Winter Weather Z 41 GREELEY GLD 19-JAN-11 00:00:00 MST-7 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201101 19 0 201101 19 2359 48705 284827 KANSAS 20 2011 January Winter Weather Z 28 LOGAN GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201102 5 0 201102 5 815 48342 282381 TEXAS 48 2011 February Frost/Freeze Z 255 CAMERON BRO 05-FEB-11 00:00:00 CST-6 05-FEB-11 08:15:00 0 0 0 0 0.00K ASOS \N \N \N \N \N \N \N \N \N \N A section of modified arctic high pressure settled over Deep South Texas and the Rio Grande Valley late on February 4th into early February 5th, bringing clear skies, nearly calm winds, and the coldest air temperatures of the three day period to most areas. ||After an ice storm departed all areas by midday on the 4th, sunshine returned, bringing temperatures above freezing but only into the 40s, except upper 30s along the coast. With low relative humidity, the stage was set for rapid temperature falls during the evening of the 4th; before midnight, most locations away from the coast (where some wind continued) fell below 32F and would continue dropping steadily. By daybreak on the 5th, hard freezes (temperatures below 28 for several hours) covered rural areas north and west of the Lower Rio Grande Valley; sheltered pockets fell into the teens. ||Readings quickly rose above freezing by mid morning of the 5th, ending the freeze event - until the next one arrived just five days later. For Cameron County, air temperatures likely fell to 32F between 11 PM February 4th and 1 AM February 5th, and continued falling into the upper 20s to around 30F, on average, before sunrise, with these temperatures continuing until an hour or so after sunrise before rapidly rising into the 50s by noon. A hard freeze - temperatures below 28 degrees for 2 or more hours - likely occurred in a few pockets north and west of Harlingen and Brownsville. ||Selected low temperatures included Brownsville/South Padre Island Int'l Airport (31 degrees; 5 hours of freezing), Harlingen/Valley Int'l Airport (28 degrees, 5 hours of freezing), Harlingen Cooperative (27 degrees), and Santa Rosa (29 degrees).||Additional light to moderate damage to cold sensitive crops likely occurred with the cold temperatures on the 5th. See the report for the long duration freeze from the 3rd through the 4th for details. CSV -201102 7 1330 201102 8 100 48347 282386 TEXAS 48 2011 February Wildfire Z 250 BROOKS BRO 07-FEB-11 13:30:00 CST-6 08-FEB-11 01:00:00 0 0 0 0 0.00K Emergency Manager \N \N \N \N \N \N \N \N \N \N Freeze-dried 1 hour and 10 hour fuels combined with gusty north winds and very low humidities to aid rapid spread of a wildfire on the King Ranch during the afternoon and evening of February 7th. A wildfire, which may have begun as a prescribed burn, quickly surged out of control on the King Ranch in eastern Brooks County near the Kenedy County line during the early afternoon, February 7th. The fire eventually covered 3,000 acres before being contained, then controlled, 12 hours later during the night. Conditions became hostile to any open burning, with freeze-dried 1 hour (grasses) and 10 hour (brush) fuels, humidity falling below 25 percent, and pulse gust north winds between 20 and 25 mph.||No structural damage was reported, though fire crews from Brooks County, Kleberg County, and Willacy County, the Texas Forest Service, and others worked together to quell the flames. CSV -201101 25 2000 201101 26 1300 48224 281632 CALIFORNIA 6 2011 January Dense Fog Z 90 E CENTRAL S.J. VALLEY HNX 25-JAN-11 20:00:00 PST-8 26-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N A mid-level atmospheric disturbance that tracked across central California during the late afternoon and early evening of January 17th squeezed some drizzle out of the stratus, but the layer remained intact. The stratus persisted through the 18th before an upper-level trough brought some clearing to the west side of the San Joaquin Valley during the morning of January 19th. An offshore flow developed over California on the 20th, drying the airmass over the San Joaquin Valley and breaking up the stratus.||Although the fog and stratus kept central and southern San Joaquin Valley temperatures near or below normal, mountain and desert locations once again experienced above normal temperatures. Once the stratus broke up, central and south Valley temperatures also warmed to above normal for a few days before sufficient moisture had evaporated and resaturated the lowest levels of the atmosphere. While dense fog had been a nightly occurrence since January 21st, by the 24th, the fog was lingering well into the late morning with only partial afternoon clearing. Locations experienced near zero visibility at times during most of late January. This persistent dense fog continued for the next several days, affecting air travel into and out of the San Joaquin Valley and keeping high temperatures well below normal. CSV -201102 19 300 201102 19 1500 48188 281400 ALASKA 2 2011 February Winter Storm Z 20 GLACIER BAY AJK 19-FEB-11 03:00:00 AKST-9 19-FEB-11 15:00:00 0 0 0 0 0.00K 0.00K AWOS \N \N \N \N \N \N \N \N \N \N All of SE Alaska was in cold air with the arctic front offshore on 2/18. A moderate gale center moved into the western Gulf of Alaska, which was just enough to cause the front to move over the Panhandle for heavy snow on the night of the 18th into the afternoon of the 20th. A COOP observer affilated with the Gustavus Airport measured 6.5 inches new snow that fell overnight. Visibility had dropped to 1 SM at the airport with wind gusts to 19 KT. CSV -201102 19 300 201102 19 1500 48188 281398 ALASKA 2 2011 February Winter Storm Z 19 HAINES BOROUGH AND LYNN CANAL AJK 19-FEB-11 03:00:00 AKST-9 19-FEB-11 15:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N All of SE Alaska was in cold air with the arctic front offshore on 2/18. A moderate gale center moved into the western Gulf of Alaska, which was just enough to cause the front to move over the Panhandle for heavy snow on the night of the 18th into the afternoon of the 20th. Haines Customs measured 6.5 inches of new snow at 0700 AKST 2/20 which occurred during the afternoon of 2/19. Downtown Haines measured 8.2 inches of new snow. Haines Airport measured visibility as low as 1/2 mile in snow with peak winds at 34 KT at the height of the storm. CSV -201102 19 300 201102 19 1500 48188 281402 ALASKA 2 2011 February Winter Storm Z 21 EASTERN CHICHAGOF ISLAND AJK 19-FEB-11 03:00:00 AKST-9 19-FEB-11 15:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N All of SE Alaska was in cold air with the arctic front offshore on 2/18. A moderate gale center moved into the western Gulf of Alaska, which was just enough to cause the front to move over the Panhandle for heavy snow on the night of the 18th into the afternoon of the 20th. Hoonah measured 4.9 inches of new snow on the morning of 2/19 and an additional 2.4 inches by 0900 on 2/20. Visibility at the Hoonah seaplane base was reduced to 0.75 SM in snow. CSV -201101 20 600 201101 21 0 48031 280440 OHIO 39 2011 January Winter Weather Z 52 CHAMPAIGN ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT county garage 1 mile west of Urbana measured 3.5 inches of snow. CSV -201101 20 600 201101 21 0 48031 280442 OHIO 39 2011 January Winter Weather Z 62 GREENE ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT county garage 1 mile east of Xenia measured 6.5 inches of snow while a spotter in Beavercreek measured 4 inches. CSV -201101 20 600 201101 21 0 48031 280445 OHIO 39 2011 January Winter Weather Z 46 DELAWARE ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT county garage 1 mile north of Delaware measured 4 inches of snow. A spotter in Delaware measured 3 inches. CSV -201101 20 600 201101 21 0 48031 280446 OHIO 39 2011 January Winter Weather Z 56 LICKING ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter in Heath measured 5.1 inches of snow, while the ODOT county garage 5 miles south southeast of Heath measured 3.5 inches. CSV -201101 20 600 201101 21 0 48031 280448 OHIO 39 2011 January Winter Weather Z 54 MADISON ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT county garage 4 miles west northwest of Jefferson measured 4 inches of snow, while a spotter in Mount Sterling measured 3.2 inches. CSV -201101 8 300 201101 8 800 46392 268958 TENNESSEE 47 2011 January Heavy Snow Z 17 SULLIVAN MRX 08-JAN-11 03:00:00 EST-5 08-JAN-11 08:00:00 0 0 0 0 Mesonet \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachians generating light to moderate snowfall over the region. The event transitioned into a northwest flow snowfall across the higher terrain areas. A snow depth of 4 inches was measured on mile west northwest of Bristol. CSV -201101 8 500 201101 8 1050 46395 268962 VIRGINIA 51 2011 January Heavy Snow Z 1 LEE MRX 08-JAN-11 05:00:00 EST-5 08-JAN-11 10:50:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachian Mountains generating light to moderate snowfall. A snow depth of 2 inches was recorded increasing the total snowfall accumulation to 5 inches at Jonesville. CSV -201101 7 600 201101 8 1200 46392 268964 TENNESSEE 47 2011 January Heavy Snow Z 14 CLAIBORNE MRX 07-JAN-11 06:00:00 EST-5 08-JAN-11 12:00:00 0 0 0 0 Mesonet \N \N \N \N \N \N \N \N \N \N A strong upper level disturbance moved southeast across the Tennessee Valley and Southern Appalachians generating light to moderate snowfall over the region. The event transitioned into a northwest flow snowfall across the higher terrain areas. A snow depth of 6 inches was measured 17 miles west of Tazewell. CSV -201101 25 2300 201101 26 800 46474 269395 KENTUCKY 21 2011 January Heavy Snow Z 71 WARREN LMK 25-JAN-11 23:00:00 CST-6 26-JAN-11 08:00:00 0 0 0 0 0.00K 0.00K Broadcast Media \N \N \N \N \N \N \N \N \N \N During the overnight hours on the 25th and the 26th of January, a strengthening closed low moved across Tennessee. North of this upper air system, a surface trough moved east across the Commonwealth, changing rain to snow. Snow, heavy at times, developed by late evening across west central Kentucky. A broad area of 3 to 5 inches of snow accumulated during the early morning hours across an area generally just west of Interstate 65. Snow amounts diminished east of Interstate 65 as precipitation remained rain well into the early morning hours. Snow continued until dawn within an arc from Bowling Green through southern Louisville through Frankfort as the back edge of an area of wrap-around snow moved east across the state. Around 4 inches of snow accumulated across northwestern Warren County. CSV -201101 30 1825 201101 30 1825 46568 269935 TEXAS 48 2011 January Hail C 373 POLK HGX 30-JAN-11 18:25:00 CST-6 30-JAN-11 18:25:00 0 0 0 0 Trained Spotter 1.75 \N \N \N 2 SE PROVIDENCE CAMP 2 SE PROVIDENCE CAMP 30.6533 -94.8797 30.6533 -94.8797 Large hail fell from a strong thunderstorm associated with the passing of a strong upper level disturbance. A severe thunderstorm produced golf ball sized hail along SH 146 to the east of Goodrich. CSV -201101 5 430 201101 5 430 46436 269175 LOUISIANA 22 2011 January Thunderstorm Wind C 5 ASCENSION LIX 05-JAN-11 04:30:00 CST-6 05-JAN-11 04:30:00 0 0 0 0 1.00K 0.00K Broadcast Media 52 EG \N \N \N 0 N PRAIRIEVILLE 0 N PRAIRIEVILLE 30.3 -90.97 30.3 -90.97 An isolated severe thunderstorm produced one report of wind damage early on the morning of the fifth. Thunderstorm winds overturned a trampoline and damaged some shingles on the roof of one home. Pea size hail was also reported. CSV -201108 18 1608 201108 18 1608 57162 342407 MARYLAND 24 2011 August Thunderstorm Wind C 3 ANNE ARUNDEL LWX 18-AUG-11 16:08:00 EST-5 18-AUG-11 16:08:00 0 0 0 0 Trained Spotter 52 EG \N \N \N 1 S SEVERN 1 S SEVERN 39.1147 -76.6989 39.1147 -76.6989 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Wind gusts were estimated to be around 60 mph. CSV -201108 18 1640 201108 18 1640 57162 342408 MARYLAND 24 2011 August Thunderstorm Wind C 3 ANNE ARUNDEL LWX 18-AUG-11 16:40:00 EST-5 18-AUG-11 16:40:00 0 0 0 0 15.00K Public 56 EG \N \N \N 1 NW CONAWAYS 1 NW CONAWAYS 39.0276 -76.7122 39.0276 -76.7122 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. A tree was blown onto a garage crushing the roof. A car was also damaged in the garage. Multiple 150 year old trees were blown down. CSV -201108 18 1715 201108 18 1715 57162 342409 MARYLAND 24 2011 August Thunderstorm Wind C 3 ANNE ARUNDEL LWX 18-AUG-11 17:15:00 EST-5 18-AUG-11 17:15:00 0 0 0 0 1.00K Public 52 EG \N \N \N 1 E MAYFIELD 1 E MAYFIELD 39.0988 -76.655 39.0988 -76.655 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. A tree that was one to one and one half feet in diameter was blown down. CSV -201108 18 1626 201108 18 1626 57162 342410 MARYLAND 24 2011 August Hail C 13 CARROLL LWX 18-AUG-11 16:26:00 EST-5 18-AUG-11 16:26:00 0 0 0 0 Other Federal Agency 1 \N \N \N 2 NE MT AIRY 2 NE MT AIRY 39.4012 -77.1294 39.4012 -77.1294 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Hail up to quarters in size was reported near Mount Airy. CSV -201108 18 1712 201108 18 1712 57162 342411 MARYLAND 24 2011 August Hail C 5 BALTIMORE LWX 18-AUG-11 17:12:00 EST-5 18-AUG-11 17:12:00 0 0 0 0 Public 1 \N \N \N 3 S PLEASANT GROVE 3 S PLEASANT GROVE 39.5327 -76.7807 39.5327 -76.7807 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported near Boring. CSV -201101 10 100 201101 10 820 46524 269670 TENNESSEE 47 2011 January Heavy Snow Z 86 NORTHWEST MONROE MRX 10-JAN-11 01:00:00 EST-5 10-JAN-11 08:20:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system developed over the Western Gulf of Mexico coast near Louisiana and moved east along the Gulf coast on its way into Northern Florida. An inverted trough of lower pressure extended north into the Tennessee Valley and Southern Appalachians enhancing lift of the moist air mass in place across the Southeastern United States. Significant snowfall accumulation occurred across Southeast Tennessee and Southwest North Carolina and the Smoky Mountains. Snowfall accumulated to a depth of 8.5 inches at Madisonville. CSV -201108 13 2300 201108 14 200 56923 341028 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 13-AUG-11 23:00:00 EST-5 14-AUG-11 02:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 2 NW TYRO 0 N TYRO 37.8472 -79.0257 37.8247 -79.0006 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Crabtree Falls Highway near Cub Creek Road was closed due to flash flooding. CSV -201108 13 2300 201108 14 200 56923 341029 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 13-AUG-11 23:00:00 EST-5 14-AUG-11 02:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 1 SE GREENFIELD 1 SSE GREENFIELD 37.92 -78.84 37.9181 -78.8408 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Rockfish Valley Highway was closed due to flash flooding. CSV -201108 14 100 201108 14 300 56923 341030 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 14-AUG-11 01:00:00 EST-5 14-AUG-11 03:00:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 3 N ADIAL 2 N ADIAL 37.89 -78.82 37.8794 -78.823 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Duncan Hollow Loop was closed due to flash flooding. A vehicle was swept off the road by high water. CSV -201108 14 100 201108 14 300 56923 341031 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 14-AUG-11 01:00:00 EST-5 14-AUG-11 03:00:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 2 ENE GREENFIELD 1 E GREENFIELD 37.94 -78.81 37.932 -78.8266 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Greenfield Road was closed with flash flooding in several spots. At least one vehicle was stranded. CSV -201108 18 1634 201108 18 1634 57162 342412 MARYLAND 24 2011 August Hail C 25 HARFORD LWX 18-AUG-11 16:34:00 EST-5 18-AUG-11 16:34:00 0 0 0 0 Public 1.75 \N \N \N 1 ENE EMMORTON 1 ENE EMMORTON 39.5042 -76.3044 39.5042 -76.3044 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Hail up to the size of golf balls was reported. CSV -201107 13 1539 201107 13 1539 55831 334606 MARYLAND 24 2011 July Thunderstorm Wind C 17 CHARLES LWX 13-JUL-11 15:39:00 EST-5 13-JUL-11 15:39:00 0 0 0 0 10.00K Fire Department/Rescue 56 EG \N \N \N 1 WSW NEWBURG CLIFFTON ARP 1 WSW NEWBURG CLIFFTON ARP 38.3635 -76.9826 38.3635 -76.9826 A cold front passed through Maryland on the 13th. Moderate instability ahead of the front combined with the forcing that was associated with the front to trigger showers and thunderstorms. Some thunderstorms were able to mix down strong winds from aloft. An 18 Wheeler was blown over near the US 301 Bridge. CSV -201107 21 1500 201107 21 1800 56291 337518 VIRGINIA 51 2011 July Heat Z 31 CLARKE LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 21 1500 201107 21 1800 56291 337519 VIRGINIA 51 2011 July Heat Z 36 NELSON LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 21 1500 201107 21 1800 56291 337521 VIRGINIA 51 2011 July Heat Z 38 GREENE LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 21 1400 201107 21 1700 56291 337523 VIRGINIA 51 2011 July Heat Z 39 MADISON LWX 21-JUL-11 14:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 21 1400 201107 21 1700 56291 337524 VIRGINIA 51 2011 July Heat Z 40 RAPPAHANNOCK LWX 21-JUL-11 14:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 21 1500 201107 21 1800 56291 337526 VIRGINIA 51 2011 July Heat Z 50 ORANGE LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 3 1726 201107 3 1726 55531 334161 VIRGINIA 51 2011 July Thunderstorm Wind C 13 ARLINGTON LWX 03-JUL-11 17:26:00 EST-5 03-JUL-11 17:26:00 0 0 0 0 5.00K Emergency Manager 61 EG \N \N \N 2 ENE BARCROFT 2 ENE BARCROFT 38.9081 -77.0987 38.9081 -77.0987 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. Widespread tree damage was reported along the George Washington Parkway. CSV -201107 3 1731 201107 3 1731 55531 334163 VIRGINIA 51 2011 July Thunderstorm Wind C 107 LOUDOUN LWX 03-JUL-11 17:31:00 EST-5 03-JUL-11 17:31:00 0 0 0 0 2.00K Public 56 EG \N \N \N 2 NE NORTH FORK 2 NE NORTH FORK 39.0885 -77.7016 39.0885 -77.7016 A cold front passed through the area during the 3rd. A southerly flow ahead of the front caused enough warm and moist air for moderate instability to develop. The combination of lift associated with the front and instability triggered showers and thunderstorms. Some thunderstorms became severe with damaging winds and large hail. A large tree was down and several large Oak limbs were snapped. CSV -201107 19 1515 201107 19 1515 55832 335083 MARYLAND 24 2011 July Thunderstorm Wind C 3 ANNE ARUNDEL LWX 19-JUL-11 15:15:00 EST-5 19-JUL-11 15:15:00 0 0 0 0 Trained Spotter 50 EG \N \N \N 0 NNW REVELL 0 NNW REVELL 39.0728 -76.5318 39.0728 -76.5318 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. A large branch fell across a drive way in Severna Park. CSV -201107 19 1702 201107 19 1702 55832 335084 MARYLAND 24 2011 July Thunderstorm Wind C 43 WASHINGTON LWX 19-JUL-11 17:02:00 EST-5 19-JUL-11 17:02:00 0 0 0 0 40.00K Newspaper 61 EG \N \N \N 1 NE BAKERSVILLE 1 NE BAKERSVILLE 39.5282 -77.7373 39.5282 -77.7373 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. A big tree was snapped off about twenty feet above the ground. Thirty to forty trees were uprooted and a Hay Wagon was blown over. A large tree also fell onto a garage. CSV -201107 19 1705 201107 19 1705 55832 335085 MARYLAND 24 2011 July Thunderstorm Wind C 43 WASHINGTON LWX 19-JUL-11 17:05:00 EST-5 19-JUL-11 17:05:00 0 0 0 0 3.00K Emergency Manager 56 EG \N \N \N 2 N KEEDYSVILLE 2 N KEEDYSVILLE 39.51 -77.7 39.51 -77.7 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. Multiple reports of trees were down between State Highway 65 and Route 40. CSV -201107 19 1904 201107 19 1904 55832 335086 MARYLAND 24 2011 July Thunderstorm Wind C 9 CALVERT LWX 19-JUL-11 19:04:00 EST-5 19-JUL-11 19:04:00 0 0 0 0 1.00K Emergency Manager 52 EG \N \N \N 1 E WALLVILLE 1 E WALLVILLE 38.42 -76.5 38.42 -76.5 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. A tree fell near Garrity road. CSV -201104 22 1738 201104 22 1738 49323 305038 OKLAHOMA 40 2011 April Hail C 125 POTTAWATOMIE OUN 22-APR-11 17:38:00 CST-6 22-APR-11 17:38:00 0 0 0 0 0.00K 0.00K Public 1.25 \N \N \N 6 S DALE 6 S DALE 35.3086 -97.0321 35.3086 -97.0321 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. The hail was reported at Bethel Acres. CSV -201106 9 11 201106 9 11 54137 324757 MICHIGAN 26 2011 June Thunderstorm Wind C 63 HURON DTX 09-JUN-11 00:11:00 EST-5 09-JUN-11 00:11:00 0 0 0 0 5.00K 0.00K NWS Storm Survey 56 EG \N \N \N 5 W BAY PORT 5 W BAY PORT 43.84 -83.47 43.84 -83.47 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. Numerous trees and tree limbs blown down. CSV -201104 22 1740 201104 22 1740 49323 305040 OKLAHOMA 40 2011 April Hail C 125 POTTAWATOMIE OUN 22-APR-11 17:40:00 CST-6 22-APR-11 17:40:00 0 0 0 0 0.00K 0.00K County Official 1.75 \N \N \N 1 W TECUMSEH 1 W TECUMSEH 35.26 -96.9577 35.26 -96.9577 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. CSV -201104 22 1740 201104 22 1740 49323 305039 OKLAHOMA 40 2011 April Hail C 125 POTTAWATOMIE OUN 22-APR-11 17:40:00 CST-6 22-APR-11 17:40:00 0 0 0 0 0.00K 0.00K Amateur Radio 2.75 \N \N \N 2 S TECUMSEH 2 S TECUMSEH 35.2311 -96.94 35.2311 -96.94 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. Up to baseball-size hail was reported 2 miles south of State Highway 9 and 2 miles east of Highway 102. CSV -201105 29 1853 201105 29 1853 53131 317898 PENNSYLVANIA 42 2011 May Hail C 85 MERCER PBZ 29-MAY-11 18:53:00 EST-5 29-MAY-11 18:53:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 2 ENE HADLEY 2 ENE HADLEY 41.43 -80.2 41.43 -80.2 A warm front slowly moving north through Pennsylvania triggered a few severe thunderstorms over northwestern Pennsylvania. The storms brought trees down, mainly in Mercer county. CSV -201105 29 1945 201105 29 1945 53131 317900 PENNSYLVANIA 42 2011 May Hail C 85 MERCER PBZ 29-MAY-11 19:45:00 EST-5 29-MAY-11 19:45:00 0 0 0 0 0.00K 0.00K State Official 0.75 \N \N \N 1 E JAMESTOWN 1 E JAMESTOWN 41.48 -80.44 41.48 -80.44 A warm front slowly moving north through Pennsylvania triggered a few severe thunderstorms over northwestern Pennsylvania. The storms brought trees down, mainly in Mercer county. CSV -201105 29 2015 201105 29 2015 53131 317901 PENNSYLVANIA 42 2011 May Thunderstorm Wind C 85 MERCER PBZ 29-MAY-11 20:15:00 EST-5 29-MAY-11 20:15:00 0 0 0 0 5.00K 0.00K State Official 50 EG \N \N \N 1 SE SHEAKLEYVILLE 1 SE SHEAKLEYVILLE 41.44 -80.21 41.44 -80.21 A warm front slowly moving north through Pennsylvania triggered a few severe thunderstorms over northwestern Pennsylvania. The storms brought trees down, mainly in Mercer county. State official reports several trees down on powerlines in Sheakleyville. CSV -201104 14 1530 201104 14 1530 48744 285054 OKLAHOMA 40 2011 April Hail C 99 MURRAY OUN 14-APR-11 15:30:00 CST-6 14-APR-11 15:30:00 0 0 0 0 0.00K 0.00K Law Enforcement 4.25 \N \N \N 0 W SULPHUR 0 W SULPHUR 34.51 -96.97 34.51 -96.97 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. Hail sizes ranged from quarter to soft-ball size. CSV -201106 9 1330 201106 9 1330 52924 316493 VERMONT 50 2011 June Thunderstorm Wind C 17 ORANGE BTV 09-JUN-11 13:30:00 EST-5 09-JUN-11 13:30:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 1 NE FAIRLEE 1 NE FAIRLEE 43.91 -72.14 43.91 -72.14 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Numerous trees downed by thunderstorm winds. CSV -201106 9 1330 201106 9 1330 52924 316494 VERMONT 50 2011 June Thunderstorm Wind C 17 ORANGE BTV 09-JUN-11 13:30:00 EST-5 09-JUN-11 13:30:00 0 0 0 0 10.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N STRAFFORD 0 N STRAFFORD 43.87 -72.38 43.87 -72.38 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Multiple reports of trees down on area roads. CSV -201106 9 1330 201106 9 1330 52924 316495 VERMONT 50 2011 June Thunderstorm Wind C 17 ORANGE BTV 09-JUN-11 13:30:00 EST-5 09-JUN-11 13:30:00 0 0 0 0 5.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N THETFORD CENTER 0 N THETFORD CENTER 43.83 -72.25 43.83 -72.25 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Numerous trees reported down by thunderstorm winds. CSV -201106 9 1320 201106 9 1320 52924 316497 VERMONT 50 2011 June Thunderstorm Wind C 21 RUTLAND BTV 09-JUN-11 13:20:00 EST-5 09-JUN-11 13:20:00 0 0 0 0 10.00K 0.00K Law Enforcement 50 EG \N \N \N 1 S RUTLAND 1 S RUTLAND 43.61 -72.98 43.61 -72.98 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Numerous trees and power lines reported down by thunderstorm winds. CSV -201106 9 1303 201106 9 1303 52924 316498 VERMONT 50 2011 June Thunderstorm Wind C 17 ORANGE BTV 09-JUN-11 13:03:00 EST-5 09-JUN-11 13:03:00 0 0 0 0 5.00K 0.00K Law Enforcement 50 EG \N \N \N 1 W SOUTH RANDOLPH 1 W SOUTH RANDOLPH 43.9 -72.59 43.9 -72.59 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Trees down blocking Crocker Hill road. CSV -201106 9 1345 201106 9 1345 52924 316500 VERMONT 50 2011 June Hail C 15 LAMOILLE BTV 09-JUN-11 13:45:00 EST-5 09-JUN-11 13:45:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 4 SW STOWE FORK 4 SW STOWE FORK 44.47 -72.81 44.47 -72.81 A surface cold front moved into a moderately unstable air mass during the morning and early afternoon of June 9th and lead to the development of scattered thunderstorms, a few isolated reports of damaging winds and large hail. Nickel size hail reported. CSV -201106 18 1217 201106 18 1217 53163 318008 VERMONT 50 2011 June Hail C 11 FRANKLIN BTV 18-JUN-11 12:17:00 EST-5 18-JUN-11 12:17:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 0 E FAIRFAX 0 E FAIRFAX 44.67 -73.01 44.67 -73.01 A cold front along with an cold upper level disturbance moved across a moderately unstable air mass across Vermont during the afternoon of June 18th. Thunderstorm activity was scattered, but a few of the stronger storms produced large hail greater than an inch diameter, including one report of near golf ball size near Enosburg in Franklin county. Dime size hail reported. CSV -201105 26 1440 201105 26 1440 50711 299199 TENNESSEE 47 2011 May Hail C 89 JEFFERSON MRX 26-MAY-11 14:40:00 EST-5 26-MAY-11 14:40:00 0 0 0 0 Amateur Radio 1.5 \N \N \N 0 N DANDRIDGE 0 N DANDRIDGE 36.02 -83.42 36.02 -83.42 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Ping Pong ball size hail was reported. CSV -201105 26 1442 201105 26 1442 50711 299200 TENNESSEE 47 2011 May Hail C 123 MONROE MRX 26-MAY-11 14:42:00 EST-5 26-MAY-11 14:42:00 0 0 0 0 Law Enforcement 1.25 \N \N \N 1 E MADISONVILLE 1 E MADISONVILLE 35.52 -84.36 35.52 -84.36 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Half dollar size hail was reported. CSV -201105 26 1445 201105 26 1445 50711 299201 TENNESSEE 47 2011 May Hail C 89 JEFFERSON MRX 26-MAY-11 14:45:00 EST-5 26-MAY-11 14:45:00 0 0 0 0 Amateur Radio 0.88 \N \N \N 2 SW WHITE PINE 2 SW WHITE PINE 36.1 -83.3 36.1 -83.3 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Nickel size hail was reported. CSV -201103 9 750 201103 9 845 48068 280687 LOUISIANA 22 2011 March Flash Flood C 103 ST. TAMMANY LIX 09-MAR-11 07:50:00 CST-6 09-MAR-11 08:45:00 0 0 0 0 0.00K 0.00K Amateur Radio \N Heavy Rain \N \N \N 0 N MADISONVILLE 1 E HOULTONVILLE 30.4 -90.17 30.4007 -90.1574 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Water was reported over Vista Road. CSV -201103 9 800 201103 9 800 48075 280690 MISSISSIPPI 28 2011 March Thunderstorm Wind C 59 JACKSON LIX 09-MAR-11 08:00:00 CST-6 09-MAR-11 08:00:00 0 0 0 0 0.00K 0.00K Emergency Manager 60 EG \N \N \N 2 N WADE 2 N WADE 30.679 -88.57 30.679 -88.57 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Trees were reported down on Polktown Road and also at Highway 613 in northern Jackson County. CSV -201103 9 900 201103 9 900 48086 280693 GULF OF MEXICO 85 2011 March Marine Thunderstorm Wind Z 532 MISSISSIPPI SOUND LIX 09-MAR-11 09:00:00 CST-6 09-MAR-11 09:00:00 0 0 0 0 0.00K 0.00K C-MAN Station 48 MG \N \N \N 0 N GULFPORT OUTER RANGE STATION (GPOM6) 0 N GULFPORT OUTER RANGE STATION (GPOM6) 30.23 -88.98 30.23 -88.98 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. CSV -201103 9 924 201103 9 924 48086 280695 GULF OF MEXICO 85 2011 March Marine Thunderstorm Wind Z 534 LAKE BORGNE LIX 09-MAR-11 09:24:00 CST-6 09-MAR-11 09:24:00 0 0 0 0 0.00K 0.00K C-MAN Station 52 MG \N \N \N 0 N SHELL BEACH STATION (SHBL1) 0 N SHELL BEACH STATION (SHBL1) 29.87 -89.67 29.87 -89.67 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. CSV -201103 9 845 201103 9 1000 48075 280709 MISSISSIPPI 28 2011 March Flash Flood C 45 HANCOCK LIX 09-MAR-11 08:45:00 CST-6 09-MAR-11 10:00:00 0 0 0 0 0.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 0 N WAVELAND 2 NE WAVELAND 30.28 -89.38 30.2967 -89.3618 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Some street flooding was reported on Chapman Road and along Harrison Avenue. CSV -201105 29 1045 201105 29 1600 51203 307078 ILLINOIS 17 2011 May Flash Flood C 103 LEE LOT 29-MAY-11 10:45:00 CST-6 29-MAY-11 16:00:00 0 0 0 0 0.00K 0.00K CoCoRaHS \N Heavy Rain \N \N \N 2 WSW AMBOY 3 N MAYTOWN 41.7127 -89.3745 41.6734 -89.3745 Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. The Green River was reported out of its banks in the Amboy area. Low areas including fields were flooded with 2 to 3 feet of standing water on the east and southeast side of Amboy. CSV -201105 29 1245 201105 29 1600 51203 307084 ILLINOIS 17 2011 May Flash Flood C 43 DU PAGE LOT 29-MAY-11 12:45:00 CST-6 29-MAY-11 16:00:00 0 0 0 0 0.00K 0.00K CoCoRaHS \N Heavy Rain \N \N \N 1 NNE KEENEYVILLE 0 ENE KEENEYVILLE 41.9816 -88.1119 41.9729 -88.1119 Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. Street flooding was reported at the intersection of Pine Avenue and Mensching Road. Goose Lake Park was reported to be under water from flooding. CSV -201105 28 1830 201105 28 2100 51624 307117 ILLINOIS 17 2011 May Flash Flood C 197 WILL LOT 28-MAY-11 18:30:00 CST-6 28-MAY-11 21:00:00 0 0 0 0 0.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 1 W FAITHORN 1 SW FAITHORN 41.4216 -87.6346 41.4052 -87.6346 Strong thunderstorms moved across parts of northern Illinois during the late afternoon and evening hours of May 28th, producing small hail and heavy rain, which produced some flooding. Dixie Highway was flooded and impassable with water up to car bumpers near the Balmoral Park Race Track. CSV -201105 29 1300 201105 29 1306 51203 307118 ILLINOIS 17 2011 May Strong Wind Z 3 WINNEBAGO LOT 29-MAY-11 13:00:00 CST-6 29-MAY-11 13:06:00 0 0 0 0 5.00K 0.00K Broadcast Media 40 MG \N \N \N \N \N \N \N \N \N Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. Strong winds developed behind a line of thunderstorms across the Rockford area. A baseball dugout and field fencing was damaged at a school on North Alpine Road. CSV -201105 11 1738 201105 11 1738 50714 307217 INDIANA 18 2011 May Lightning C 127 PORTER LOT 11-MAY-11 17:38:00 CST-6 11-MAY-11 17:38:00 1 0 0 0 0.00K 0.00K Emergency Manager \N \N \N \N 8 NE VALPARAISO 8 NE VALPARAISO 41.5519 -86.9407 41.5519 -86.9407 Strong to severe thunderstorms moved across many areas of northwest Indiana during the evening hours of May 11th. A woman in Jackson Township was injured when lightning struck nearby while she was closing a metal window. CSV -201105 22 1500 201105 22 1600 50721 307222 ILLINOIS 17 2011 May Flood C 105 LIVINGSTON LOT 22-MAY-11 15:00:00 CST-6 22-MAY-11 16:00:00 0 0 0 0 0.00K 0.00K CoCoRaHS \N Heavy Rain \N \N \N 2 E ROOKS CREEK 1 WNW PONTIAC 40.8848 -88.6471 40.8755 -88.6471 Severe thunderstorms moved across many areas of northern Illinois during the afternoon and evening hours of May 22nd. Heavy rain produced flash flooding in some areas and tornadoes were reported with some of the strongest storms that moved across far northern Illinois during the early evening hours. Water was overflowing many streets in Pontiac after 1.12 inches of rain fell in 30 minutes. CSV -201105 29 1159 201105 29 1159 51203 307230 ILLINOIS 17 2011 May Hail C 197 WILL LOT 29-MAY-11 11:59:00 CST-6 29-MAY-11 11:59:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 0 N NEW LENOX 0 N NEW LENOX 41.52 -87.97 41.52 -87.97 Strong to severe thunderstorms moved across many areas of northern Illinois from late morning through late afternoon on May 29th producing damaging winds, large hail and heavy rain, which caused flash flooding in some areas. CSV -201106 5 1900 201106 5 1900 52473 313474 FLORIDA 12 2011 June Hail C 73 LEON TAE 05-JUN-11 19:00:00 EST-5 05-JUN-11 19:00:00 0 0 0 0 Utility Company 0.75 \N \N \N 0 N LAKE JACKSON 0 N LAKE JACKSON 30.53 -84.33 30.53 -84.33 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. CSV -201106 5 1940 201106 5 1940 52473 313485 FLORIDA 12 2011 June Hail C 73 LEON TAE 05-JUN-11 19:40:00 EST-5 05-JUN-11 19:40:00 0 0 0 0 0.00K 0.00K NWS Employee 0.75 \N \N \N 1 NW FLORIDA STATE UNIVERSITY (FSU) 1 NW FLORIDA STATE UNIVERSITY (FSU) 30.4463 -84.2997 30.4463 -84.2997 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Penny sized hail was observed at the National Weather Service office on the Florida State University campus. A maximum wind gust of 47 mph accompanied this hail. CSV -201106 6 1621 201106 6 1621 52473 313489 FLORIDA 12 2011 June Thunderstorm Wind C 67 LAFAYETTE TAE 06-JUN-11 16:21:00 EST-5 06-JUN-11 16:21:00 0 0 0 0 4.00K 0.00K Law Enforcement 50 EG \N \N \N 4 SSE COOKS HAMMOCK 4 SSE COOKS HAMMOCK 29.87 -83.24 29.87 -83.24 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Six trees were blown down across the county, including along county road 357. The monetary damage figure provided is a rough estimate. CSV -201106 6 1638 201106 6 1638 52473 313492 FLORIDA 12 2011 June Hail C 123 TAYLOR TAE 06-JUN-11 16:38:00 EST-5 06-JUN-11 16:38:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 3 SE SALEM 3 SE SALEM 29.85 -83.38 29.85 -83.38 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Quarter sized hail was reported along Highway 19 northwest of Tennille. CSV -201106 6 1650 201106 6 1650 52473 313496 FLORIDA 12 2011 June Thunderstorm Wind C 123 TAYLOR TAE 06-JUN-11 16:50:00 EST-5 06-JUN-11 16:50:00 0 0 0 0 1.00K 0.00K Law Enforcement 50 EG \N \N \N 1 SE BUCELL JUNCTION 1 SE BUCELL JUNCTION 30.05 -83.54 30.05 -83.54 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. A couple of trees were blown down along Shipman Lane southeast of Perry. The monetary damage figure provided is a rough estimate. CSV -201106 6 1708 201106 6 1708 52473 313497 FLORIDA 12 2011 June Hail C 123 TAYLOR TAE 06-JUN-11 17:08:00 EST-5 06-JUN-11 17:08:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 2 W SECOTAN 2 W SECOTAN 30.17 -83.66 30.17 -83.66 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. CSV -201106 6 2041 201106 6 2041 52473 313500 FLORIDA 12 2011 June Thunderstorm Wind C 63 JACKSON TAE 06-JUN-11 20:41:00 CST-6 06-JUN-11 20:41:00 0 0 0 0 4.00K 0.00K Law Enforcement 50 EG \N \N \N 2 N STAR 2 N STAR 30.74 -85.13 30.74 -85.13 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Several trees were blown down across the eastern part of the county. The monetary damage figure provided is a rough estimate. CSV -201104 26 2000 201104 26 2000 49622 291318 LOUISIANA 22 2011 April Hail C 13 BIENVILLE SHV 26-APR-11 20:00:00 CST-6 26-APR-11 20:00:00 0 0 0 0 0.00K 0.00K Trained Spotter 2.75 \N \N \N 1 S CASTOR 1 S CASTOR 32.24 -93.17 32.24 -93.17 A very volatile atmosphere developed during the late afternoon...evening and overnight hours of April 26th across the Four State Region. An area of low pressure moved from the Texas Hill Country into Northeast Texas during the afternoon. Meanwhile, a warm front had moved northward from central Louisiana and was oriented west to east near the Arkansas/Louisiana state line. A dry line had moved just east of the I-35 corridor of North Central Texas and a strong cold front trailed the dry line. Very strong speed and directional shear was noted in the low and mid levels of the atmosphere such that supercells developed. Many of these produced tornadoes across the region. Other storms produced strong straight line wind gusts with bowing segments and large hail. Baseball sized hail was reported just south of Castor on Hwy. 153. CSV -201105 12 1625 201105 12 1625 49880 293286 IOWA 19 2011 May Funnel Cloud C 133 MONONA OAX 12-MAY-11 16:25:00 CST-6 12-MAY-11 16:25:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N 5 SW WHITING 5 SW WHITING 42.08 -96.22 42.08 -96.22 Severe thunderstorms, some of which produced very large hail, formed along a cool front that pushed southeast across the region. Temperatures and dew points ahead of the front were in the mid to upper 70s and lower 60s respectively, while temperatures were in the lower 60s behind the cold front. A supercell thunderstorm that produced very large hail in the area also produced a brief funnel cloud that dropped from a rotating wall cloud. CSV -201104 20 1950 201104 20 1950 50376 301619 MISSISSIPPI 28 2011 April Thunderstorm Wind C 105 OKTIBBEHA JAN 20-APR-11 19:50:00 CST-6 20-APR-11 19:50:00 0 0 0 0 2.00K 0.00K Emergency Manager 55 EG \N \N \N 2 WNW STATE COLLEGE 2 WNW STATE COLLEGE 33.44 -88.8 33.44 -88.8 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Several trees were blown down. CSV -201104 20 1947 201104 20 1947 50376 301633 MISSISSIPPI 28 2011 April Thunderstorm Wind C 7 ATTALA JAN 20-APR-11 19:47:00 CST-6 20-APR-11 19:47:00 0 0 0 0 3.00K 0.00K Law Enforcement 53 EG \N \N \N 2 N WAMBA 2 N WAMBA 33.0543 -89.615 33.0543 -89.615 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Several trees were down across Highway 12, just west of Kosciusko. CSV -201107 13 1420 201107 13 1424 52054 310153 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 39 FAIRFIELD CAE 13-JUL-11 14:20:00 EST-5 13-JUL-11 14:24:00 0 0 0 0 2.00K 0.00K Law Enforcement 55 EG \N \N \N 1 E WINNSBORO 1 E WINNSBORO 34.38 -81.09 34.38 -81.09 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Highway Patrol reported trees down near Winnsboro along Hwy 200. CSV -201107 13 1446 201107 13 1450 52054 310154 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 81 SALUDA CAE 13-JUL-11 14:46:00 EST-5 13-JUL-11 14:50:00 0 0 0 0 3.00K 0.00K Law Enforcement 55 EG \N \N \N 1 NE MAYSON 1 NE MAYSON 34.04 -81.87 34.04 -81.87 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Sheriff dispatch reported trees down at Greenwood Hwy and Larkin Rice road. CSV -201107 13 1540 201107 13 1544 52054 310156 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 61 LEE CAE 13-JUL-11 15:40:00 EST-5 13-JUL-11 15:44:00 0 0 0 0 3.00K 0.00K Law Enforcement 60 EG \N \N \N 5 WSW LUCKNOW 5 WSW LUCKNOW 34.28 -80.41 34.28 -80.41 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Highway Patrol reported trees down at Lucknow road and Dee Lee Way. CSV -201104 4 912 201104 4 913 48385 282679 ARKANSAS 5 2011 April Tornado C 139 UNION SHV 04-APR-11 09:12:00 CST-6 04-APR-11 09:13:00 0 0 0 0 150.00K 0.00K NWS Storm Survey \N EF1 1.28 100 \N 0 ESE NORPHLET 2 E NORPHLET 33.318 -92.665 33.32 -92.643 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. The National Weather Service conducted a storm survey in Union County Arkansas and concluded that storm damage was the result of an EF1 tornado. The tornado touched down at around 10:12 AM, in the town of Norphlet. An old gas station cover was blown down and several trees were snapped along Black street eastward across Hayes St. Some minor roof damage occurred to homes along Hayes street. The tornado continued eastward crossing N Tate Road where a carport collapsed on a vehicle and several trees were snapped or uprooted. The tornado continued along the south side of Tate Road snapping trees and peeling shingles from several homes. The tornado lifted east of a pasture where several hardwood and softwood trees were snapped or uprooted. A small metal outbuilding suffered structural damage as well. Maximum winds are estimated at 90-100 mph. CSV -201105 11 1608 201105 11 1608 52308 312277 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 16:08:00 EST-5 11-MAY-11 16:08:00 0 0 0 0 Park/Forest Service 1.25 \N \N \N 2 SW JOCASSEE 2 SW JOCASSEE 34.95 -82.95 34.95 -82.95 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Half dollar size hail was reported at Devils Fork State Park. CSV -201105 20 1430 201105 20 1915 49901 293283 NEBRASKA 31 2011 May Flood C 95 JEFFERSON OAX 20-MAY-11 14:30:00 CST-6 20-MAY-11 19:15:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 2 SW ENDICOTT 0 NE HEDRIX 40.0593 -97.1343 40.1831 -97.2455 Thunderstorms developed over eastern Nebraska during the evening of 5/19 ahead of a large upper level low pressure system over the Rocky Mountains and north of a warm front in Kansas. The storms mainly produced areas of heavy rain...with 2 to 3+ inches common from David City and Wahoo south through Lincoln, Crete and Fairbury. This produced some flooding around Wahoo and along the Big Blue River near Crete and the Little Blue River near Fairbury. Rainfall of 2 to 3 inches fell across part of the lower Little Blue River basin causing it to briefly go above it's 17.5 foot flood stage near Fairbury. The flooding mainly affected a county road or two and flooded some lowlands along the river but damage was minimal. CSV -201105 21 230 201105 22 530 49901 293285 NEBRASKA 31 2011 May Flood C 151 SALINE OAX 21-MAY-11 02:30:00 CST-6 22-MAY-11 05:30:00 0 0 0 0 1.00K 0.00K Official NWS Observations \N Heavy Rain \N \N \N 3 WNW DE WITT 3 SSW WILBER MUNI ARPT 40.4229 -96.9743 40.4316 -96.9959 Thunderstorms developed over eastern Nebraska during the evening of 5/19 ahead of a large upper level low pressure system over the Rocky Mountains and north of a warm front in Kansas. The storms mainly produced areas of heavy rain...with 2 to 3+ inches common from David City and Wahoo south through Lincoln, Crete and Fairbury. This produced some flooding around Wahoo and along the Big Blue River near Crete and the Little Blue River near Fairbury. Rainfall of around 2 to 3 inches fell across a large part of the Turkey Creek basin in the evening and overnight hours of 5/19 and 5/20. This water eventually caused Turkey Creek to flood in the Wilber area. The creek crested a little over 12 feet in the morning of 5/21, flood stage near Wilber is 11 feet. The flooding affected mainly agricultural lowlands along the river but a few county roads were also flooded. CSV -201104 1 0 201104 30 2359 52211 312632 OKLAHOMA 40 2011 April Drought Z 37 TILLMAN OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 Other Federal Agency \N \N \N \N \N \N \N \N \N \N Although two storm systems moved through the region, bringing with it beneficial rainfall, D2 to D3 drought steadily moved north and west through Oklahoma. D4 drought also developed over a few counties of southwest Oklahoma. This all stems from the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Tillman county began the month the month in D3 drought, but was upgraded to D4 status by 4/26. CSV -201104 1 0 201104 30 2359 52211 312633 OKLAHOMA 40 2011 April Drought Z 6 ALFALFA OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Although two storm systems moved through the region, bringing with it beneficial rainfall, D2 to D3 drought steadily moved north and west through Oklahoma. D4 drought also developed over a few counties of southwest Oklahoma. This all stems from the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Harper county began the month in D1 drought status, but increased to D2 status by 4/19. CSV -201104 1 0 201104 30 2359 52211 312634 OKLAHOMA 40 2011 April Drought Z 12 GARFIELD OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Although two storm systems moved through the region, bringing with it beneficial rainfall, D2 to D3 drought steadily moved north and west through Oklahoma. D4 drought also developed over a few counties of southwest Oklahoma. This all stems from the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Harper county began the month in D1 drought status, but increased to D2 status by 4/19, and D3 status by 4/26. CSV -201104 14 1820 201104 14 1820 48744 285078 OKLAHOMA 40 2011 April Hail C 123 PONTOTOC OUN 14-APR-11 18:20:00 CST-6 14-APR-11 18:20:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 2 W FITTSTOWN 2 W FITTSTOWN 34.61 -96.6652 34.61 -96.6652 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201104 22 2215 201104 22 2215 49323 305078 OKLAHOMA 40 2011 April Hail C 123 PONTOTOC OUN 22-APR-11 22:15:00 CST-6 22-APR-11 22:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.25 \N \N \N 0 N VANOSS 0 N VANOSS 34.76 -96.87 34.76 -96.87 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. In addition to the hail, wind gusts were estimated around 60 mph. CSV -201105 13 1626 201105 13 2000 52965 316752 PENNSYLVANIA 42 2011 May Flood C 3 ALLEGHENY PBZ 13-MAY-11 16:26:00 EST-5 13-MAY-11 20:00:00 0 0 0 0 5.00K 0.00K State Official \N Heavy Rain \N \N \N 1 NE FAIROAKS 1 N BELL ACRES 40.5904 -80.2 40.6011 -80.172 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. State official reports that Seven Road and Little Sewickley Creek Road are closed due to flooding. CSV -201104 8 1814 201104 8 1814 48498 283373 OKLAHOMA 40 2011 April Hail C 103 NOBLE OUN 08-APR-11 18:14:00 CST-6 08-APR-11 18:14:00 0 0 0 0 0.00K 0.00K Trained Spotter 3 \N \N \N 4 W CERES 4 W CERES 36.48 -97.352 36.48 -97.352 A weak cold front slipped into northern Oklahoma during the early morning hours of the 8th. Meanwhile, a dry line sharpened up near the Oklahoma/Texas panhandle border. Gulf moisture streamed north, with low to middle 60 dew point temperatures in place by late afternoon to the east of the dry line. The cold front had become stationary, providing another focus for afternoon thunderstorms. The cap that was in place for much of the day, weakened sufficiently for thunderstorms to develop over the western third of Oklahoma. Instability and wind shear were already in place, and a weak upper level disturbance moved northeast from west Texas during peak heating hours. Supercell thunderstorms moved northeast, with very large hail to the size of baseballs and strong winds reported along their path. The most intense damage occurred at Ponca City, where a wind gust over 90 mph was measured. CSV -201106 18 1742 201106 18 1742 53573 320796 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:42:00 CST-6 18-JUN-11 17:42:00 0 0 0 0 0.00K 0.00K Storm Chaser 2.5 \N \N \N 2 ENE MAPLE CITY 2 ENE MAPLE CITY 37.06 -96.75 37.06 -96.75 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201104 8 1816 201104 8 1816 48498 283374 OKLAHOMA 40 2011 April Hail C 3 ALFALFA OUN 08-APR-11 18:16:00 CST-6 08-APR-11 18:16:00 0 0 0 0 0.00K 0.00K Law Enforcement 2.75 \N \N \N 5 W JET 5 W JET 36.67 -98.2702 36.67 -98.2702 A weak cold front slipped into northern Oklahoma during the early morning hours of the 8th. Meanwhile, a dry line sharpened up near the Oklahoma/Texas panhandle border. Gulf moisture streamed north, with low to middle 60 dew point temperatures in place by late afternoon to the east of the dry line. The cold front had become stationary, providing another focus for afternoon thunderstorms. The cap that was in place for much of the day, weakened sufficiently for thunderstorms to develop over the western third of Oklahoma. Instability and wind shear were already in place, and a weak upper level disturbance moved northeast from west Texas during peak heating hours. Supercell thunderstorms moved northeast, with very large hail to the size of baseballs and strong winds reported along their path. The most intense damage occurred at Ponca City, where a wind gust over 90 mph was measured. CSV -201105 15 720 201105 15 720 53160 317999 CALIFORNIA 6 2011 May Funnel Cloud C 19 FRESNO HNX 15-MAY-11 07:20:00 PST-8 15-MAY-11 07:20:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N 4 NW ACADEMY 4 NW ACADEMY 36.92 -119.57 36.92 -119.57 The next upper-level trough began moving into California on May 14th, bringing colder air and abundant mid and high clouds. Temperatures in the central and southern San Joaquin Valley only reached the mid 60s to mid 70s, down as much as 22 degrees from the 13th. During the morning of the 14th, a thin layer of cirrostratus covered the San Joaquin Valley. The layer of ice crystals aloft produced a prominent halo around the Sun that was visible from parts of the Valley.||The upper-level trough remained over the central California interior from May 15th through the 18th. Upper-level disturbances brought periods of showers to the region, as well as scattered thunderstorms during the afternoon of the 15th. Three funnel clouds were seen over the central San Joaquin Valley on May 15th (one in the morning near the foothills east of Fresno, and two in the afternoon near Kerman), and another funnel was observed on the 18th near Arvin in Kern County. A trained weather spotter reported a funnel cloud that lasted for about 10 minutes but never reached the ground. CSV -201105 15 1125 201105 15 1125 53160 318000 CALIFORNIA 6 2011 May Funnel Cloud C 19 FRESNO HNX 15-MAY-11 11:25:00 PST-8 15-MAY-11 11:25:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N 2 NE SAN JOAQUIN 2 NE SAN JOAQUIN 36.64 -120.16 36.64 -120.16 The next upper-level trough began moving into California on May 14th, bringing colder air and abundant mid and high clouds. Temperatures in the central and southern San Joaquin Valley only reached the mid 60s to mid 70s, down as much as 22 degrees from the 13th. During the morning of the 14th, a thin layer of cirrostratus covered the San Joaquin Valley. The layer of ice crystals aloft produced a prominent halo around the Sun that was visible from parts of the Valley.||The upper-level trough remained over the central California interior from May 15th through the 18th. Upper-level disturbances brought periods of showers to the region, as well as scattered thunderstorms during the afternoon of the 15th. Three funnel clouds were seen over the central San Joaquin Valley on May 15th (one in the morning near the foothills east of Fresno, and two in the afternoon near Kerman), and another funnel was observed on the 18th near Arvin in Kern County. Weather spotter reported a brief funnel cloud that lasted for about 3 minutes. CSV -201105 22 1810 201105 22 1810 50702 299095 VIRGINIA 51 2011 May Thunderstorm Wind C 169 SCOTT MRX 22-MAY-11 18:10:00 EST-5 22-MAY-11 18:10:00 0 0 0 0 Law Enforcement 55 EG \N \N \N 1 S HAGAN HALL 1 S HAGAN HALL 36.81 -82.53 36.81 -82.53 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Relatively dry air in place at the surface intensified thunderstorm downdrafts in this region resulting in damaging winds. A few trees were reported down across the northern third of the county generally west of Dungannon. CSV -201105 22 1835 201105 22 1835 50702 299097 VIRGINIA 51 2011 May Thunderstorm Wind C 169 SCOTT MRX 22-MAY-11 18:35:00 EST-5 22-MAY-11 18:35:00 0 0 0 0 Law Enforcement 55 EG \N \N \N 1 NNW COX MILL 1 NNW COX MILL 36.7 -82.58 36.7 -82.58 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Relatively dry air in place at the surface intensified thunderstorm downdrafts in this region resulting in damaging winds. Numerous trees were reported down across the county. CSV -201105 22 1904 201105 22 1904 50702 299100 VIRGINIA 51 2011 May Thunderstorm Wind C 191 WASHINGTON MRX 22-MAY-11 19:04:00 EST-5 22-MAY-11 19:04:00 0 0 0 0 Law Enforcement 55 EG \N \N \N 2 N VANCE 2 N VANCE 36.71 -81.97 36.71 -81.97 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Relatively dry air in place at the surface intensified thunderstorm downdrafts in this region resulting in damaging winds. Numerous trees, power poles and power lines were reported down countywide. Several roads were blocked from the fallen trees and power lines. CSV -201105 30 1735 201105 30 1739 50437 297214 NEBRASKA 31 2011 May Hail C 89 HOLT LBF 30-MAY-11 17:35:00 CST-6 30-MAY-11 17:39:00 0 0 0 0 0.00K 0.00K Storm Chaser 0.88 \N \N \N 1 W EMMET 1 W EMMET 42.48 -98.81 42.48 -98.81 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1745 201105 30 1745 50437 297215 NEBRASKA 31 2011 May Hail C 41 CUSTER LBF 30-MAY-11 17:45:00 CST-6 30-MAY-11 17:45:00 0 0 0 0 0.00K 0.00K Public 1.75 \N \N \N 9 NNW CALLAWAY 9 NNW CALLAWAY 41.42 -100 41.42 -100 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1805 201105 30 1805 50437 297216 NEBRASKA 31 2011 May Hail C 41 CUSTER LBF 30-MAY-11 18:05:00 CST-6 30-MAY-11 18:05:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 14 SW CALLAWAY 14 SW CALLAWAY 41.14 -100.09 41.14 -100.09 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201107 4 1301 201107 4 1301 53532 322426 WEST VIRGINIA 54 2011 July Thunderstorm Wind C 47 MCDOWELL RLX 04-JUL-11 13:01:00 EST-5 04-JUL-11 13:01:00 0 0 0 0 2.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N MARYTOWN 0 N MARYTOWN 37.48 -81.67 37.48 -81.67 A moist and unstable environment was aided by daytime heating to create afternoon thunderstorms. One of the thunderstorms became severe in Buchanan County Virginia. The convection developed into a bow echo as it pushed northeast into McDowell and Wyoming Counties. Trees were blown down. CSV -201105 22 1716 201105 22 1717 51433 305636 ILLINOIS 17 2011 May Hail C 143 PEORIA ILX 22-MAY-11 17:16:00 CST-6 22-MAY-11 17:17:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 NE HANNA CITY 0 NE HANNA CITY 40.68 -89.8 40.68 -89.8 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1729 201105 22 1730 51433 305637 ILLINOIS 17 2011 May Hail C 57 FULTON ILX 22-MAY-11 17:29:00 CST-6 22-MAY-11 17:30:00 0 0 0 0 0.00K 0.00K Mesonet 0.88 \N \N \N 0 N ST DAVID 0 N ST DAVID 40.48 -90.05 40.48 -90.05 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1737 201105 22 1738 51433 305638 ILLINOIS 17 2011 May Hail C 143 PEORIA ILX 22-MAY-11 17:37:00 CST-6 22-MAY-11 17:38:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 0 E GLASFORD 0 E GLASFORD 40.57 -89.82 40.57 -89.82 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1750 201105 22 1751 51433 305640 ILLINOIS 17 2011 May Hail C 179 TAZEWELL ILX 22-MAY-11 17:50:00 CST-6 22-MAY-11 17:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 0 N NORTH PEKIN 0 N NORTH PEKIN 40.62 -89.62 40.62 -89.62 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1900 201105 22 1901 51433 305643 ILLINOIS 17 2011 May Hail C 95 KNOX ILX 22-MAY-11 19:00:00 CST-6 22-MAY-11 19:01:00 0 0 0 0 0.00K 0.00K Mesonet 1 \N \N \N 0 N ABINGDON 0 N ABINGDON 40.8 -90.4 40.8 -90.4 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1904 201105 22 1904 50702 299102 VIRGINIA 51 2011 May Thunderstorm Wind C 191 WASHINGTON MRX 22-MAY-11 19:04:00 EST-5 22-MAY-11 19:04:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 1 SSE GREENFIELD 1 SSE GREENFIELD 36.71 -81.82 36.71 -81.82 A large area of thunderstorms across Central Kentucky and Middle Tennessee produced an outflow boundary which moved into Northeast Tennessee and Southwest Virginia. Relatively dry air in place at the surface intensified thunderstorm downdrafts in this region resulting in damaging winds. Several trees and power lines were reported down between Emory-Meadow View and Damascus. CSV -201106 1 0 201106 30 2359 51675 308018 GEORGIA 13 2011 June Drought Z 121 CLAY TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308020 GEORGIA 13 2011 June Drought Z 146 COLQUITT TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201105 25 2230 201105 25 2240 52926 316496 NEW YORK 36 2011 May Thunderstorm Wind C 3 ALLEGANY BUF 25-MAY-11 22:30:00 EST-5 25-MAY-11 22:40:00 0 0 0 0 100.00K 0.00K Public 80 EG \N \N \N 1 SW FRIENDSHIP 1 SW FRIENDSHIP 42.21 -78.14 42.21 -78.14 Thunderstorms developed ahead of a warm front across the southern tier. The thunderstorms produced wind gusts measured to 60 mph however damage indicated wind gusts estimated to 80 to 85 mph. Just north of Kiantone, Chautauqua County, trees were down and blocked route 62. In Friendship, in Allegany county, trees were downed on Times Square and several homes suffered minor structure damage to shingles and siding. A minivan was heavily damaged by a large fallen tree. Along Route 31 a barn was blown down and a nearby home and garage had roofing blown off. Trees were downed on Ackerman Road in Amity and on South Street in the Village Belmont. A large portion of a barn roof was also blown out on South Street. A storm survey estimated wind gusts between 80 and 85 mph. CSV -201105 26 1420 201105 26 1420 52927 316908 NEW YORK 36 2011 May Thunderstorm Wind C 11 CAYUGA BUF 26-MAY-11 14:20:00 EST-5 26-MAY-11 14:20:00 0 0 0 0 15.00K 0.00K Public 55 EG \N \N \N 2 SE MERIDIAN 2 SE MERIDIAN 43.15 -76.52 43.15 -76.52 A slow moving cold front generated showers and thunderstorms across the region. One of these storms downed trees and wires in Sherman and Mayville in Chautauqua County. Other storms strengthened over the north country downing trees and power lines in Lowville, New Bremen and Watson. In Cayuga County, thunderstorm winds downed trees and power lines and tore the roof off a home on Jordan Road near Cross Lake. Thunderstorm winds downed trees at Cross Lake Marina. CSV -201105 26 1420 201105 26 1420 52927 316910 NEW YORK 36 2011 May Thunderstorm Wind C 49 LEWIS BUF 26-MAY-11 14:20:00 EST-5 26-MAY-11 14:20:00 0 0 0 0 8.00K 0.00K Law Enforcement 50 MG \N \N \N 1 SW NEW BREMEN DUFLO ARP 1 SW NEW BREMEN DUFLO ARP 43.84 -75.44 43.84 -75.44 A slow moving cold front generated showers and thunderstorms across the region. One of these storms downed trees and wires in Sherman and Mayville in Chautauqua County. Other storms strengthened over the north country downing trees and power lines in Lowville, New Bremen and Watson. In Cayuga County, thunderstorm winds downed trees and power lines and tore the roof off a home on Jordan Road near Cross Lake. CSV -201104 19 2250 201104 19 2250 48861 285956 TEXAS 48 2011 April Hail C 37 BOWIE SHV 19-APR-11 22:50:00 CST-6 19-APR-11 22:50:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 N NEW BOSTON 1 N NEW BOSTON 33.46 -94.42 33.46 -94.42 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. CSV -201104 19 2310 201104 19 2310 48861 285957 TEXAS 48 2011 April Hail C 37 BOWIE SHV 19-APR-11 23:10:00 CST-6 19-APR-11 23:10:00 0 0 0 0 0.00K 0.00K Amateur Radio 1.75 \N \N \N 2 W HOOKS 2 W HOOKS 33.47 -94.29 33.47 -94.29 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. CSV -201104 19 1830 201104 19 1830 48859 285977 OKLAHOMA 40 2011 April Hail C 89 MCCURTAIN SHV 19-APR-11 18:30:00 CST-6 19-APR-11 18:30:00 0 0 0 0 0.00K 0.00K Newspaper 1 \N \N \N 0 N IDABEL ARPT 0 N IDABEL ARPT 33.9 -94.85 33.9 -94.85 A very unstable airmass developed across the Middle Red River Valley of Southeast Oklahoma, Southwest Arkansas, Northeast Texas and Northwest Louisiana during the afternoon and evening hours of April 19th. A weak upper level disturbance moved across the Central and Southern Plains, providing enough lift for supercell thunderstorms to develop across the region. These storms produced mainly very large hail. CSV -201104 20 1320 201104 20 1333 50376 297066 MISSISSIPPI 28 2011 April Hail C 97 MONTGOMERY JAN 20-APR-11 13:20:00 CST-6 20-APR-11 13:33:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 3 W SWEATMAN 0 ESE ALOA 33.63 -89.64 33.6273 -89.5139 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Quarter sized hail covered the ground. CSV -201104 20 1351 201104 20 1427 50376 297078 MISSISSIPPI 28 2011 April Hail C 155 WEBSTER JAN 20-APR-11 13:51:00 CST-6 20-APR-11 14:27:00 0 0 0 0 0.00K Emergency Manager 1.75 \N \N \N 6 SSW CADARETTA 4 NNW SAPA 33.6229 -89.4874 33.5806 -89.2148 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. A swath of golf ball sized hail fell across western and central portions of Webster County. CSV -201105 11 1221 201105 11 1221 49574 290833 NEBRASKA 31 2011 May Hail C 67 GAGE OAX 11-MAY-11 12:21:00 CST-6 11-MAY-11 12:21:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 SW ADAMS 1 SW ADAMS 40.46 -96.51 40.46 -96.51 A line of thunderstorms, some severe, developed near the Kansas and Nebraska border south of Beatrice during the early afternoon of May 11th. Temperatures in the 80s and dew point temperatures in the mid/upper 60s from southeast Nebraska into easterly Kansas created moderately unstable conditions as a large upper level low pressure system organized over Colorado. Due to the circulation of the upper system, the storms lifted north across eastern Nebraska and produced areas of damaging winds and several large hail reports. With a boundary bisecting east central Nebraska and western Iowa a few tornadoes also spun-up just west and east of the region. A spotter reported pea to quarter-size hail in the Adams area. CSV -201105 22 600 201105 31 2359 52915 316401 IOWA 19 2011 May Flood C 167 SIOUX FSD 22-MAY-11 06:00:00 CST-6 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K River/Stream Gage \N Heavy Rain \N \N \N 0 N HAWARDEN 7 SSW HAWARDEN 43 -96.47 42.9064 -96.523 Heavy rain brought the lower Big Sioux River back above flood stage in late May, with minor to moderate flooding. Heavy rain caused the lower Big Sioux River to rise again above flood stage, after spring snowmelt flooding subsided. Minor to briefly moderate flooding was reported with some lowlands and a few roads flooded. The river crested at 2.2 feet above flood stage at Hawarden on May 28th. CSV -201105 22 600 201105 31 2359 52912 316394 SOUTH DAKOTA 46 2011 May Flood C 127 UNION FSD 22-MAY-11 06:00:00 CST-6 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K River/Stream Gage \N Heavy Rain \N \N \N 8 ENE ALCESTER 1 W ELK PT 43.0643 -96.5036 42.68 -96.6897 Heavy rain brought the lower Big Sioux River back above flood stage in late May, with minor to moderate flooding. Heavy rain caused the lower Big Sioux River to rise again above flood stage, after spring snowmelt flooding subsided. Minor to moderate flooding was reported with some farmland and a few roads flooded. The river crested at close to 2 feet above flood stage across the river at Hawarden and Akron, Iowa, then began to fall again by the end of the month. CSV -201105 22 600 201105 31 2359 52915 316403 IOWA 19 2011 May Flood C 149 PLYMOUTH FSD 22-MAY-11 06:00:00 CST-6 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K River/Stream Gage \N Heavy Rain \N \N \N 6 N AKRON 8 SW AKRON 42.9168 -96.55 42.7481 -96.6616 Heavy rain brought the lower Big Sioux River back above flood stage in late May, with minor to moderate flooding. Heavy rain caused the lower Big Sioux River to rise again above flood stage, after spring snowmelt flooding subsided. Minor to briefly moderate flooding was reported with some lowlands and a few roads flooded. The river crested at 1.7 feet above flood stage at Akron on May 25th. CSV -201105 22 600 201105 30 1800 52917 316407 IOWA 19 2011 May Flood C 41 CLAY FSD 22-MAY-11 06:00:00 CST-6 30-MAY-11 18:00:00 0 0 0 0 0.00K 0.00K River/Stream Gage \N Heavy Rain \N \N \N 10 W FOSTORIA 2 WSW GILLETT GROVE 43.25 -95.3588 43.0089 -95.0666 Heavy rain brought the Little Sioux River back above flood stage in late May, with minor flooding reported. Heavy rain caused the Little Sioux River to rise again above flood stage, after spring snowmelt flooding subsided. Minor flooding was reported with some lowlands and a few roads flooded. The river crested at 1.3 feet above flood stage at Spencer on May 26th, then fell below flood stage at the end of the month. CSV -201104 20 215 201104 20 220 50969 302476 MISSISSIPPI 28 2011 April Thunderstorm Wind C 13 CALHOUN MEG 20-APR-11 02:15:00 CST-6 20-APR-11 02:20:00 0 0 0 0 0.00K Law Enforcement 50 EG \N \N \N 0 S SAREPTA 1 ESE SAREPTA 34.1265 -89.3008 34.1238 -89.2777 A strong area of low pressure moved from the Southern Plains into the Middle Mississippi Valley from April 19th into April 20th. A trailing cold front moved into the Mid-South during the nighttime hours of April 19th resulting in numerous severe storms with large hail and damaging wind. This front slowly moved across the region eventually stalling across North Mississippi on April 20th resulting in more severe storms and isolated flash flooding. Straight line winds knocked down trees along Highway 9 near Sarepta. CSV -201107 4 1254 201107 4 1254 53532 322427 WEST VIRGINIA 54 2011 July Thunderstorm Wind C 47 MCDOWELL RLX 04-JUL-11 12:54:00 EST-5 04-JUL-11 12:54:00 0 0 0 0 2.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N IAEGER 0 N IAEGER 37.45 -81.82 37.45 -81.82 A moist and unstable environment was aided by daytime heating to create afternoon thunderstorms. One of the thunderstorms became severe in Buchanan County Virginia. The convection developed into a bow echo as it pushed northeast into McDowell and Wyoming Counties. Trees were blown down. CSV -201107 4 1250 201107 4 1250 53532 322429 WEST VIRGINIA 54 2011 July Thunderstorm Wind C 47 MCDOWELL RLX 04-JUL-11 12:50:00 EST-5 04-JUL-11 12:50:00 0 0 0 0 1.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N RAYSAL 0 N RAYSAL 37.33 -81.78 37.33 -81.78 A moist and unstable environment was aided by daytime heating to create afternoon thunderstorms. One of the thunderstorms became severe in Buchanan County Virginia. The convection developed into a bow echo as it pushed northeast into McDowell and Wyoming Counties. Trees were blown down. CSV -201107 11 1348 201107 11 1348 53835 322441 OHIO 39 2011 July Thunderstorm Wind C 127 PERRY RLX 11-JUL-11 13:48:00 EST-5 11-JUL-11 13:48:00 0 0 0 0 1.00K 0.00K Public 50 EG \N \N \N 0 N GLENFORD 0 N GLENFORD 39.88 -82.32 39.88 -82.32 In a hot and humid air mass, long lived strong to severe thunderstorms traveled southeast through southeast Ohio during the afternoon. A second cluster of strong thunderstorms reformed over northeast Indiana and northern Ohio by evening. The environment recovered quickly, allowing the second complex to reach southeast Ohio during the late evening. Both complexes contained frequent lightning. The second cluster bowed in several places, allowing for repetitive showers to hit portions of Athens County. Trees and large branches were blown down. CSV -201107 11 1400 201107 11 1400 53835 322442 OHIO 39 2011 July Thunderstorm Wind C 127 PERRY RLX 11-JUL-11 14:00:00 EST-5 11-JUL-11 14:00:00 0 0 0 0 1.00K 0.00K Public 50 EG \N \N \N 0 N NEW LEXINGTON 0 N NEW LEXINGTON 39.72 -82.2 39.72 -82.2 In a hot and humid air mass, long lived strong to severe thunderstorms traveled southeast through southeast Ohio during the afternoon. A second cluster of strong thunderstorms reformed over northeast Indiana and northern Ohio by evening. The environment recovered quickly, allowing the second complex to reach southeast Ohio during the late evening. Both complexes contained frequent lightning. The second cluster bowed in several places, allowing for repetitive showers to hit portions of Athens County. Large branches were blown down. CSV -201106 18 2150 201106 18 2150 53108 317767 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 21:50:00 CST-6 18-JUN-11 21:50:00 0 0 0 0 0.00K 0.00K NWS Employee 0.75 \N \N \N 0 N LEES SUMMIT 0 N LEES SUMMIT 38.92 -94.38 38.92 -94.38 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2147 201106 18 2147 53108 317768 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 21:47:00 CST-6 18-JUN-11 21:47:00 0 0 0 0 0.00K 0.00K CoCoRaHS 0.75 \N \N \N 2 ENE LEES SUMMIT 2 ENE LEES SUMMIT 38.93 -94.35 38.93 -94.35 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2155 201106 18 2155 53108 317769 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 21:55:00 CST-6 18-JUN-11 21:55:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 0 N OAK GROVE 0 N OAK GROVE 39 -94.13 39 -94.13 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201106 18 2201 201106 18 2201 53108 317770 MISSOURI 29 2011 June Hail C 95 JACKSON EAX 18-JUN-11 22:01:00 CST-6 18-JUN-11 22:01:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.75 \N \N \N 1 W BLUE SPGS 1 W BLUE SPGS 39.02 -94.3 39.02 -94.3 Severe thunderstorms developed along a surface boundary, that was draped across west central Missouri, during the late evening hours of June 18th, into the early morning hours of June 19th, 2011. Hail, damaging winds, and flash flooding were observed. CSV -201104 4 1036 201104 4 1045 49715 295236 MISSISSIPPI 28 2011 April Thunderstorm Wind C 143 TUNICA MEG 04-APR-11 10:36:00 CST-6 04-APR-11 10:45:00 0 0 0 0 0.00K Emergency Manager 61 EG \N \N \N 0 N TUNICA 2 NNE TUNICA 34.68 -90.38 34.7024 -90.3742 A strong low pressure system tracked northeast from Western Kansas into the Great Lakes during the time period from April 2nd-April 4th, 2011. As a result, a trailing cold front moved through the Mid-South during the morning and early afternoon hours of April 4th. A moist and unstable atmosphere was in place ahead of the front creating a favorable environment for thunderstorm development. Numerous showers and thunderstorms formed along the front by mid-morning. Some storms became severe producing large hail, damaging winds, flash flooding and isolated tornadoes. Straight line winds blew up to 40 power poles down along Highway 61 across Tunica County. Numerous trees were also blown down and minor roof damage occurred on several homes. The back wall of the North Tunica Fire Department was blown in resulting in one damaged vehicle. CSV -201106 7 1100 201106 7 1900 54449 327002 WISCONSIN 55 2011 June Heat Z 62 IOWA MKX 07-JUN-11 11:00:00 CST-6 07-JUN-11 19:00:00 0 0 0 0 AWOS \N \N \N \N \N \N \N \N \N \N A warm and humid air mass settled over southern Wisconsin, with high temperatures reaching the middle to upper 90s. Dew points initially were in the mid to upper 60s, and then fell into the upper 50s during the afternoon. The combination of the hot temperatures and moist dew points produced heat index values of 100 to 104 over southern portions of Iowa County and northern Lafayette County. Heat index values ranged between 92 and 98 across the remainder of southern Wisconsin. CSV -201106 7 1100 201106 7 1900 54449 327003 WISCONSIN 55 2011 June Heat Z 67 LAFAYETTE MKX 07-JUN-11 11:00:00 CST-6 07-JUN-11 19:00:00 0 0 0 0 COOP Observer \N \N \N \N \N \N \N \N \N \N A warm and humid air mass settled over southern Wisconsin, with high temperatures reaching the middle to upper 90s. Dew points initially were in the mid to upper 60s, and then fell into the upper 50s during the afternoon. The combination of the hot temperatures and moist dew points produced heat index values of 100 to 104 over southern portions of Iowa County and northern Lafayette County. Heat index values ranged between 92 and 98 across the remainder of southern Wisconsin. CSV -201106 9 10 201106 9 10 54137 324724 MICHIGAN 26 2011 June Thunderstorm Wind C 157 TUSCOLA DTX 09-JUN-11 00:10:00 EST-5 09-JUN-11 00:10:00 0 0 0 0 0.00K 0.00K NWS Storm Survey 56 EG \N \N \N 0 N UNIONVILLE 0 N UNIONVILLE 43.65 -83.47 43.65 -83.47 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. A few trees and tree limbs were blown down. CSV -201106 6 420 201106 6 420 54459 327172 WISCONSIN 55 2011 June Hail C 111 SAUK MKX 06-JUN-11 04:20:00 CST-6 06-JUN-11 04:20:00 0 0 0 0 Law Enforcement 2.5 \N \N \N 4 W REEDSBURG 4 W REEDSBURG 43.53 -90.0799 43.53 -90.0799 Low level warm air advection and moisture transport produced increasing instability over the region as it pushed a surface warm front toward Wisconsin during the early morning hours of June 6th. A cluster of strong to severe elevated thunderstorms formed on the leading edge of the strengthening low-level jet as it veered south-southwest, focusing on southern Wisconsin during the early daylight hours. Moderate elevated instability...steepening mid-level lapse rates and increasing effective bulk shear up to 50 knots supported the development of severe thunderstorms with large hail that affected mainly the northern half of the Milwaukee/Sullivan County Warning Area. CSV -201106 6 440 201106 6 440 54459 327174 WISCONSIN 55 2011 June Hail C 111 SAUK MKX 06-JUN-11 04:40:00 CST-6 06-JUN-11 04:40:00 0 0 0 0 Public 4.25 \N \N \N 0 N LOGANVILLE 0 N LOGANVILLE 43.43 -90.03 43.43 -90.03 Low level warm air advection and moisture transport produced increasing instability over the region as it pushed a surface warm front toward Wisconsin during the early morning hours of June 6th. A cluster of strong to severe elevated thunderstorms formed on the leading edge of the strengthening low-level jet as it veered south-southwest, focusing on southern Wisconsin during the early daylight hours. Moderate elevated instability...steepening mid-level lapse rates and increasing effective bulk shear up to 50 knots supported the development of severe thunderstorms with large hail that affected mainly the northern half of the Milwaukee/Sullivan County Warning Area. CSV -201106 17 2127 201106 17 2127 54884 329712 KANSAS 20 2011 June Hail C 93 KEARNY DDC 17-JUN-11 21:27:00 CST-6 17-JUN-11 21:27:00 0 0 0 0 Public 0.88 \N \N \N 0 N DEERFIELD 0 N DEERFIELD 37.98 -101.13 37.98 -101.13 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. Winds were blowing as high as 55 mph with the hail. CSV -201106 17 2127 201106 17 2127 54884 329715 KANSAS 20 2011 June Hail C 93 KEARNY DDC 17-JUN-11 21:27:00 CST-6 17-JUN-11 21:27:00 0 0 0 0 Public 0.88 \N \N \N 1 N DEERFIELD 1 N DEERFIELD 38 -101.13 38 -101.13 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201108 6 1500 201108 6 1615 54869 329623 FLORIDA 12 2011 August Heavy Rain C 23 COLUMBIA JAX 06-AUG-11 15:00:00 EST-5 06-AUG-11 16:15:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N 1 NW LAKE CITY 1 NW LAKE CITY 30.19 -82.64 30.19 -82.64 The sea breezes ignited a few severe storms over an unstable air mass during the afternoon and evening. An observer measured 2.91 inches of rain in 1 hr and 15 minutes. CSV -201108 6 1600 201108 6 1600 54869 329624 FLORIDA 12 2011 August Thunderstorm Wind C 125 UNION JAX 06-AUG-11 16:00:00 EST-5 06-AUG-11 16:00:00 0 0 0 0 0.00K 0.00K State Official 50 EG \N \N \N 4 NW GUILFORD 4 NW GUILFORD 30.09 -82.47 30.09 -82.47 The sea breezes ignited a few severe storms over an unstable air mass during the afternoon and evening. Trees and power lines were blown down per highway patrol. The time of damage was based on radar. CSV -201108 7 1716 201108 7 1716 54873 329630 ATLANTIC SOUTH 87 2011 August Marine Thunderstorm Wind Z 452 FERNANDINA BEACH TO ST AUGUSTINE FL OUT 20NM JAX 07-AUG-11 17:16:00 EST-5 07-AUG-11 17:16:00 0 0 0 0 0.00K 0.00K ASOS 38 MG \N \N \N 0 N MAYPORT NAS 0 N MAYPORT NAS 30.4 -81.42 30.4 -81.42 Sea breezes storms started a lightning fire near Hodges Blvd in Duval county. Gusty winds were also measured by storms at Mayport. CSV -201108 8 1325 201108 8 1325 54874 329636 FLORIDA 12 2011 August Thunderstorm Wind C 121 SUWANNEE JAX 08-AUG-11 13:25:00 EST-5 08-AUG-11 13:25:00 0 0 0 0 Emergency Manager 50 EG \N \N \N 4 NE OBRIEN 4 NE OBRIEN 30.07 -82.88 30.07 -82.88 An isolated severe storm produced strong down bursts that caused a lot of tree damage and fence damage to property in Suwannee County. Six to seven large oak trees were blown down and a fence was damaged near County Road 49 and 208th Street. The time of the event was based on radar. CSV -201108 9 1830 201108 9 1830 54875 329639 GEORGIA 13 2011 August Heavy Rain C 1 APPLING JAX 09-AUG-11 18:30:00 EST-5 09-AUG-11 18:30:00 0 0 0 0 0.00K 0.00K State Official \N \N \N \N 5 NE PRENTISS 5 NE PRENTISS 31.85 -82.35 31.85 -82.35 The sea breezes and outflow combined with a short wave upper level trough produced isolated strong storms. Lightning caused a brief fire in Jeff Davis and heavy rainfall occurred in Appling County. Piney Bluff Road was washed out and closed due to heavy rainfall. Radar estimated that around 3 inches in one hour fell near the road. CSV -201108 9 1723 201108 9 1723 54875 329641 GEORGIA 13 2011 August Lightning C 161 JEFF DAVIS JAX 09-AUG-11 17:23:00 EST-5 09-AUG-11 17:23:00 0 0 0 0 0.50K State Official \N \N \N \N 0 N HAZELHURST 0 N HAZELHURST 31.87 -82.6 31.87 -82.6 The sea breezes and outflow combined with a short wave upper level trough produced isolated strong storms. Lightning caused a brief fire in Jeff Davis and heavy rainfall occurred in Appling County. Lightning caused a tree fire on 31 Sparrow Lane in Hazlehurst. CSV -201106 9 1605 201106 9 1608 53953 323216 MAINE 23 2011 June Thunderstorm Wind C 1 ANDROSCOGGIN GYX 09-JUN-11 16:05:00 EST-5 09-JUN-11 16:08:00 0 0 0 0 0.00K Amateur Radio 50 EG \N \N \N 0 N LEWISTON 0 N LEWISTON 44.1 -70.2 44.1 -70.2 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed a tree on a house in Lewiston. CSV -201106 9 0 201106 9 0 54137 324702 MICHIGAN 26 2011 June Thunderstorm Wind C 17 BAY DTX 09-JUN-11 00:00:00 EST-5 09-JUN-11 00:00:00 0 0 0 0 0.00K 0.00K Broadcast Media 56 EG \N \N \N 0 N BAY CITY 0 N BAY CITY 43.6 -83.88 43.6 -83.88 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. Large tree limbs and wires were reported down. CSV -201106 9 8 201106 9 8 54137 324720 MICHIGAN 26 2011 June Thunderstorm Wind C 157 TUSCOLA DTX 09-JUN-11 00:08:00 EST-5 09-JUN-11 00:08:00 0 0 0 0 5.00K 0.00K NWS Storm Survey 61 EG \N \N \N 1 E QUANICASSEE 1 E QUANICASSEE 43.58 -83.66 43.58 -83.66 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. Trees and large tree limbs blown down. CSV -201106 9 37 201106 9 37 54137 324759 MICHIGAN 26 2011 June Thunderstorm Wind C 63 HURON DTX 09-JUN-11 00:37:00 EST-5 09-JUN-11 00:37:00 0 0 0 0 0.00K 0.00K Trained Spotter 54 EG \N \N \N 41 ENE APLIN BEACH 41 ENE APLIN BEACH 43.8 -83 43.8 -83 A cold front moving through around Midnight produced numerous severe thunderstorms across southeast Michigan, with a measured wind gust of 76 mph recorded in Flint. A few large tree limbs were blown down. CSV -201106 8 2330 201106 8 2330 54151 324760 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 422 INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI DTX 08-JUN-11 23:30:00 EST-5 08-JUN-11 23:30:00 0 0 0 0 0.00K 0.00K C-MAN Station 54 MG \N \N \N 0 N SAGINAW BAY LIGHT 0 N SAGINAW BAY LIGHT 43.81 -83.72 43.81 -83.72 A severe thunderstorm moved through Saginaw Bay, with weaker storms impacting the Nearshore waters of Lake Huron. CSV -201105 1 0 201105 31 2359 52262 311832 NEW MEXICO 35 2011 May Drought Z 525 UPPER TULAROSA VALLEY ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 9 1518 201106 9 1521 53953 323218 MAINE 23 2011 June Thunderstorm Wind C 17 OXFORD GYX 09-JUN-11 15:18:00 EST-5 09-JUN-11 15:21:00 0 0 0 0 0.00K 0.00K Trained Spotter 50 EG \N \N \N 0 N SOUTH WATERFORD 0 N SOUTH WATERFORD 44.17 -70.72 44.17 -70.72 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed a tree on Bear Pond Road knocking out power in South Waterford. CSV -201106 9 1605 201106 9 1609 53953 323219 MAINE 23 2011 June Thunderstorm Wind C 1 ANDROSCOGGIN GYX 09-JUN-11 16:05:00 EST-5 09-JUN-11 16:09:00 0 0 0 0 0.00K 0.00K Amateur Radio 50 EG \N \N \N 0 N AUBURN 0 N AUBURN 44.1 -70.23 44.1 -70.23 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed trees and wires in Auburn. CSV -201106 28 1730 201106 28 1730 54343 326375 VIRGINIA 51 2011 June Thunderstorm Wind C 83 HALIFAX RNK 28-JUN-11 17:30:00 EST-5 28-JUN-11 17:30:00 0 0 0 0 6.30K 0.00K State Official 55 EG \N \N \N 1 W HALIFAX 1 W HALIFAX 36.77 -78.94 36.77 -78.93 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Several trees were blown down near the north side of Halifax. Damage values are estimated. CSV -201106 28 1813 201106 28 1813 54343 326377 VIRGINIA 51 2011 June Thunderstorm Wind C 83 HALIFAX RNK 28-JUN-11 18:13:00 EST-5 28-JUN-11 18:13:00 0 0 0 0 9.00K 0.00K State Official 55 EG \N \N \N 3 SE DRYBURG 3 SE DRYBURG 36.7 -78.68 36.7 -78.68 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew several trees down in Staunton River State Park. Damage values are estimated. CSV -201106 28 1745 201106 28 1745 54343 326379 VIRGINIA 51 2011 June Thunderstorm Wind C 11 APPOMATTOX RNK 28-JUN-11 17:45:00 EST-5 28-JUN-11 17:45:00 0 0 0 0 4.50K 0.00K State Official 55 EG \N \N \N 6 NW HIXBURG 6 NW HIXBURG 37.39 -78.74 37.39 -78.74 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew trees down at Hollywood. Damage values are estimated. CSV -201106 28 1547 201106 28 1547 54343 326380 VIRGINIA 51 2011 June Thunderstorm Wind C 89 HENRY RNK 28-JUN-11 15:47:00 EST-5 28-JUN-11 15:47:00 0 0 0 0 0.90K 0.00K Department of Highways 50 EG \N \N \N 1 SW FIELDALE 1 SW FIELDALE 36.69 -79.96 36.69 -79.96 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Thunderstorm winds blew a tree down. Damage values are estimated. CSV -201106 28 1800 201106 28 1800 54343 327006 VIRGINIA 51 2011 June Lightning C 83 HALIFAX RNK 28-JUN-11 18:00:00 EST-5 28-JUN-11 18:00:00 0 0 0 0 2.00K 0.00K Newspaper \N \N \N \N 2 ENE SOUTH BOSTON 2 ENE SOUTH BOSTON 36.7104 -78.869 36.7104 -78.869 A cold front swept through the region on the 28th. Multiple clusters of storms accompanied the front as it progressed. Some of these storms increased to severe levels and produced large hail and damaging winds. Lightning struck the Motorsports Hall of Fame marker at the South Boston Speedway. The brick base of the marker was shattered by the strike. CSV -201106 18 1802 201106 18 1802 53573 320798 KANSAS 20 2011 June Hail C 49 ELK ICT 18-JUN-11 18:02:00 CST-6 18-JUN-11 18:02:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 8 N LONGTON 8 N LONGTON 37.5 -96.09 37.5 -96.09 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 27 2110 201106 27 2110 54316 329256 NORTH CAROLINA 37 2011 June Thunderstorm Wind C 157 ROCKINGHAM RNK 27-JUN-11 21:10:00 EST-5 27-JUN-11 21:10:00 0 0 0 0 0.00K 0.00K State Official 50 EG \N \N \N 4 SSW ELLISBORO 4 SSW ELLISBORO 36.27 -80.01 36.27 -80.01 Thunderstorms developed in a region of high instability across north central North Carolina. Some of the storms reached severe levels and produced damaging winds. Thunderstorm winds blew down a tree along Oak Level Church Road. CSV -201106 20 1755 201106 20 1755 53576 320917 KANSAS 20 2011 June Thunderstorm Wind C 15 BUTLER ICT 20-JUN-11 17:55:00 CST-6 20-JUN-11 17:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 61 EG \N \N \N 1 E TOWANDA 1 E TOWANDA 37.8 -96.98 37.8 -96.98 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 1759 201106 20 1759 53576 320918 KANSAS 20 2011 June Hail C 35 COWLEY ICT 20-JUN-11 17:59:00 CST-6 20-JUN-11 17:59:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 3 WSW ROCK 3 WSW ROCK 37.44 -97.05 37.44 -97.05 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 23 1750 201106 23 1800 54525 327475 IDAHO 16 2011 June Tornado C 11 BINGHAM PIH 23-JUN-11 17:50:00 MST-7 23-JUN-11 18:00:00 0 0 0 0 7.00K 0.00K NWS Storm Survey \N EF0 0.5 50 \N 2 SW MORELAND 1 SW MORELAND 43.2047 -112.4711 43.2098 -112.464 An EF0 tornado hit the city of Moreland along Pioneer Road between 800 and 900 West between 6:50 and 7:00 pm MDT On June 23rd. four homes received damage. A shed at one home was destroyed and a garage to the back of another home was destroyed. A third home had wood sidign removed and damaged trees. A camper was flipped over and was on it's top at a 4th home. The Jensen Grove Park near Blackfoot had 19 trees either snapped or uprooted by the storm. An EF0 tornado hit the city of Moreland along Pioneer Road between 800 and 900 West between 6:50 and 7:00 pm MDT On June 23rd. four homes received damage. A shed at one home was destroyed and a garage to the back of another home was destroyed. A third home had wood sidign removed and damaged trees. A camper was flipped over and was on it's top at a 4th home. A storm survey was done and it was determined to be an EF0 tornado. The Jensen Grove Park near Blackfoot had 19 trees either snapped or uprooted by the storm. CSV -201106 29 1654 201106 29 1705 54530 327485 IDAHO 16 2011 June Thunderstorm Wind C 7 BEAR LAKE PIH 29-JUN-11 16:54:00 MST-7 29-JUN-11 17:05:00 0 0 0 0 0.00K 0.00K Trained Spotter 56 EG \N \N \N 1 SSE ST CHARLES 1 SSE ST CHARLES 42.1066 -111.3725 42.1066 -111.3725 Measured wind gusts over 60 mph occurred near St Charles and Bern. Large tree was downed 1 mile south southeast of St Charles. CSV -201106 29 1100 201106 29 1300 54534 327488 IDAHO 16 2011 June High Wind Z 19 UPPER SNAKE HIGHLANDS PIH 29-JUN-11 11:00:00 MST-7 29-JUN-11 13:00:00 0 0 0 0 54.00K 0.00K Emergency Manager 56 EG \N \N \N \N \N \N \N \N \N Straight line non thunderstorm winds caused power poles to snap off 10 miles southeast of Ashton. Additional downed power lines occurred 13 miles southeast of Ashton, 11 miles southeast of Ashton, and 3 miles west of St Anthony. Straight line non thunderstorm winds caused power poles to snap off 10 miles southeast of Ashton. Additional downed power lines occurred 13 miles southeast of Ashton, 11 miles southeast of Ashton, and 3 miles west of St Anthony. CSV -201106 29 1430 201106 29 1440 54535 327498 IDAHO 16 2011 June Thunderstorm Wind C 5 BANNOCK PIH 29-JUN-11 14:30:00 MST-7 29-JUN-11 14:40:00 0 0 0 0 0.00K 0.00K Broadcast Media 52 EG \N \N \N 0 N POCATELLO 0 N POCATELLO 42.87 -112.43 42.87 -112.43 Trees were downed in Pocatello and Iona on June 29th from microburst winds. Olive tree downed over a fence near Sacajewea Park. CSV -201105 10 1525 201105 10 1529 50729 299280 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:25:00 EST-5 10-MAY-11 15:29:00 0 0 0 0 Public 0.75 \N \N \N 0 N CHILLICOTHE 0 N CHILLICOTHE 39.33 -82.98 39.33 -82.98 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201108 1 0 201108 31 2359 54910 329931 GEORGIA 13 2011 August Drought Z 120 QUITMAN TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329932 GEORGIA 13 2011 August Drought Z 122 RANDOLPH TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329933 GEORGIA 13 2011 August Drought Z 155 SEMINOLE TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329934 GEORGIA 13 2011 August Drought Z 124 TERRELL TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329935 GEORGIA 13 2011 August Drought Z 158 THOMAS TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329936 GEORGIA 13 2011 August Drought Z 129 TIFT TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329937 GEORGIA 13 2011 August Drought Z 128 TURNER TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201108 1 0 201108 31 2359 54910 329938 GEORGIA 13 2011 August Drought Z 127 WORTH TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D3 drought conditions (extreme) across all of southwest and south-central Georgia. Below average rainfall fell during the month, and D3 drought conditions persisted through the end of the month and into September across the entire area. CSV -201104 27 1350 201104 27 1356 50307 303232 MISSISSIPPI 28 2011 April Tornado C 3 ALCORN MEG 27-APR-11 13:50:00 CST-6 27-APR-11 13:56:00 0 0 0 0 100.00K 0.00K NWS Storm Survey \N EF0 2.32 50 \N 1 E RIENZI 2 SSE SEARCY TOWN 34.7709 -88.5147 34.7941 -88.4851 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. A weak tornado briefly touched down along Highway 356, east of Rienzi, and moved northeast. Minor damage occurred to a few homes. Several trees were knocked down as well. The tornado lifted near County Road 430. CSV -201105 10 1542 201105 10 1545 50729 299282 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:42:00 EST-5 10-MAY-11 15:45:00 0 0 0 0 Public 1.75 \N \N \N 2 NW NORTH FORK VLG 0 NW NORTH FORK VLG 39.3505 -83.0565 39.33 -83.03 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1540 201105 10 1544 50729 299284 OHIO 39 2011 May Hail C 145 SCIOTO ILN 10-MAY-11 15:40:00 EST-5 10-MAY-11 15:44:00 0 0 0 0 Emergency Manager 0.75 \N \N \N 0 N SCIOTOVILLE 0 N SCIOTOVILLE 38.77 -82.88 38.77 -82.88 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1541 201105 10 1545 50729 299286 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 15:41:00 EST-5 10-MAY-11 15:45:00 0 0 0 0 Public 0.75 \N \N \N 0 N CHLLCTH ROSS CO ARPT 0 N CHLLCTH ROSS CO ARPT 39.43 -83.02 39.43 -83.02 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1705 201105 10 1715 50729 299287 OHIO 39 2011 May Hail C 107 MERCER ILN 10-MAY-11 17:05:00 EST-5 10-MAY-11 17:15:00 0 0 0 0 Trained Spotter 0.75 \N \N \N 5 SE ROCKFORD 0 SE MENDON 40.6288 -84.5626 40.67 -84.52 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1602 201105 10 1606 50729 299288 OHIO 39 2011 May Hail C 11 AUGLAIZE ILN 10-MAY-11 16:02:00 EST-5 10-MAY-11 16:06:00 0 0 0 0 Law Enforcement 0.75 \N \N \N 0 N WAPAKONETA 0 N WAPAKONETA 40.57 -84.2 40.57 -84.2 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1834 201105 10 1838 50729 299292 OHIO 39 2011 May Hail C 145 SCIOTO ILN 10-MAY-11 18:34:00 EST-5 10-MAY-11 18:38:00 0 0 0 0 Public 0.88 \N \N \N 4 ENE WHEELERSBURG 4 ENE WHEELERSBURG 38.7522 -82.7614 38.7522 -82.7614 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 2110 201105 10 2114 50729 299293 OHIO 39 2011 May Hail C 129 PICKAWAY ILN 10-MAY-11 21:10:00 EST-5 10-MAY-11 21:14:00 0 0 0 0 Trained Spotter 0.88 \N \N \N 0 N TARLTON 0 N TARLTON 39.55 -82.78 39.55 -82.78 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201106 26 2236 201106 26 2236 54109 324314 MISSOURI 29 2011 June Thunderstorm Wind C 79 GRUNDY EAX 26-JUN-11 22:36:00 CST-6 26-JUN-11 22:36:00 0 0 0 0 1.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N TRENTON ARPT 0 N TRENTON ARPT 40.08 -93.6 40.08 -93.6 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Trees and power lines were reported down on Tindall Avenue. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201104 15 1828 201104 15 1833 50601 298431 TENNESSEE 47 2011 April Hail C 79 HENRY MEG 15-APR-11 18:28:00 CST-6 15-APR-11 18:33:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 0 N PARIS 0 N PARIS 36.3 -88.32 36.3 -88.32 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201104 15 1900 201104 15 1905 50601 298432 TENNESSEE 47 2011 April Hail C 17 CARROLL MEG 15-APR-11 19:00:00 CST-6 15-APR-11 19:05:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 0 N HOLLOW ROCK 0 N HOLLOW ROCK 36.03 -88.28 36.03 -88.28 A Strong area of low pressure in Oklahoma intensified and moved into the Mid Mississippi Valley on April 15, 2011. A warm front surged north through the Mid-South during the morning hours of April 15, 2011 kicking off a round of severe thunderstorms with multiple reports of damaging winds. Later that day a trailing cold front pushed across the region with another round of severe thunderstorms producing mainly large hail. CSV -201106 7 1515 201106 7 1517 54334 326259 ALABAMA 1 2011 June Thunderstorm Wind C 53 ESCAMBIA MOB 07-JUN-11 15:15:00 CST-6 07-JUN-11 15:17:00 0 0 0 0 10.00K 0.00K Broadcast Media 52 EG \N \N \N 2 S BREWTON 2 S BREWTON 31.0911 -87.07 31.0911 -87.07 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew down a large tree over on a mobile home. CSV -201106 18 1810 201106 18 1810 53573 320799 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 18:10:00 CST-6 18-JUN-11 18:10:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 11 E MAPLE CITY 11 E MAPLE CITY 37.03 -96.59 37.03 -96.59 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201104 26 1735 201104 26 1802 50307 300685 MISSISSIPPI 28 2011 April Tornado C 27 COAHOMA MEG 26-APR-11 17:35:00 CST-6 26-APR-11 18:02:00 0 0 0 0 70.00K 0.00K NWS Storm Survey \N EF0 24.51 200 \N 6 NW HILLHOUSE 0 SSW COAHOMA 34.1837 -90.8902 34.3668 -90.5225 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. A weak tornado traveled northeast out of Phillips County, Arkansas into Coahoma County. The tornado continued northeast toward the city of Coahoma where it eventually lifted. A church sustained roof damage, 3 miles southwest of Coahoma. Numerous trees were either uprooted or snapped. Scattered telephone poles were knocked down. A few road or advertisement signs were damaged as well. A few pivot irrigation systems were also toppled over. CSV -201105 21 1857 201105 21 1857 52005 309871 KANSAS 20 2011 May Hail C 103 LEAVENWORTH EAX 21-MAY-11 18:57:00 CST-6 21-MAY-11 18:57:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 2 W EASTON 2 W EASTON 39.35 -95.15 39.35 -95.15 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1907 201105 21 1907 52005 309872 KANSAS 20 2011 May Hail C 103 LEAVENWORTH EAX 21-MAY-11 19:07:00 CST-6 21-MAY-11 19:07:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 3 WNW LOWEMONT 3 WNW LOWEMONT 39.4 -95.12 39.4 -95.12 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1933 201105 21 1933 52005 309874 KANSAS 20 2011 May Hail C 103 LEAVENWORTH EAX 21-MAY-11 19:33:00 CST-6 21-MAY-11 19:33:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 3 WNW LEAVENWRTH SHERMAN A 3 WNW LEAVENWRTH SHERMAN A 39.38 -94.99 39.38 -94.99 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201105 21 1942 201105 21 1942 52005 309875 KANSAS 20 2011 May Hail C 5 ATCHISON EAX 21-MAY-11 19:42:00 CST-6 21-MAY-11 19:42:00 0 0 0 0 0.00K 0.00K Amateur Radio 1.75 \N \N \N 5 WSW CUMMINGS 5 WSW CUMMINGS 39.43 -95.33 39.43 -95.33 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. There were numerous reports of hail and one report of a tornado. CSV -201106 26 2220 201106 26 2220 54109 324315 MISSOURI 29 2011 June Thunderstorm Wind C 129 MERCER EAX 26-JUN-11 22:20:00 CST-6 26-JUN-11 22:20:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N MILL GROVE 0 N MILL GROVE 40.32 -93.6 40.32 -93.6 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Large tree limb was reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2155 201106 26 2155 54109 324316 MISSOURI 29 2011 June Thunderstorm Wind C 81 HARRISON EAX 26-JUN-11 21:55:00 CST-6 26-JUN-11 21:55:00 0 0 0 0 2.00K 0.00K Broadcast Media 52 EG \N \N \N 0 N HATFIELD 0 N HATFIELD 40.53 -94.15 40.53 -94.15 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Trees and power lines were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2152 201106 26 2152 54109 324317 MISSOURI 29 2011 June Thunderstorm Wind C 147 NODAWAY EAX 26-JUN-11 21:52:00 CST-6 26-JUN-11 21:52:00 0 0 0 0 0.20K 0.00K Trained Spotter 52 EG \N \N \N 1 SE GUILFORD 1 SE GUILFORD 40.16 -94.72 40.16 -94.72 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. A 30 foot long horse trailer was blown over on its side. Numerous tree limbs were reported down. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201107 8 1200 201107 8 1200 55058 330894 FLORIDA 12 2011 July Lightning C 57 HILLSBOROUGH TBW 08-JUL-11 12:00:00 EST-5 08-JUL-11 12:00:00 0 1 0 0 0.00K 0.00K Newspaper \N \N \N \N 1 NNE SULPHUR SPGS 1 NNE SULPHUR SPGS 28.0371 -82.4202 28.0371 -82.4202 Numerous afternoon thunderstorms developed near the coast with the seabreeze. One thunderstorm caused a lightning strike injury. A pregnant 28-year-old female was walking through a Tampa theme park holding an umbrella when lightning struck the ground near her. She was transported to the hospital and reported a tingling feeling in her hands. CSV -201107 2 1918 201107 2 1918 55063 330901 GULF OF MEXICO 85 2011 July Marine Thunderstorm Wind Z 850 TARPON SPRINGS TO SUWANNEE RIVER FL OUT 20NM TBW 02-JUL-11 19:18:00 EST-5 02-JUL-11 19:18:00 0 0 0 0 0.00K 0.00K Mesonet 35 MG \N \N \N 2 SW ANCLOTE KEY 2 SW ANCLOTE KEY 28.1533 -82.8012 28.1533 -82.8012 Scattered afternoon seabreeze thunderstorms pushed offshore and caused a strong marine thunderstorm wind gust. The COMPS station at Fred Howard Park measured a wind gust of 35 knots. CSV -201106 7 1727 201106 7 1729 54334 326254 ALABAMA 1 2011 June Thunderstorm Wind C 129 WASHINGTON MOB 07-JUN-11 17:27:00 CST-6 07-JUN-11 17:29:00 0 0 0 0 10.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N DEER PARK 0 N DEER PARK 31.22 -88.32 31.22 -88.32 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew down several tress across the area. One tree fell on a house. CSV -201106 7 1615 201106 7 1617 54334 326257 ALABAMA 1 2011 June Thunderstorm Wind C 53 ESCAMBIA MOB 07-JUN-11 16:15:00 CST-6 07-JUN-11 16:17:00 0 0 0 0 5.00K 0.00K Broadcast Media 52 EG \N \N \N 0 N BREWTON 0 N BREWTON 31.12 -87.07 31.12 -87.07 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew down numerous trees across the area. CSV -201106 7 1625 201106 7 1627 54334 326262 ALABAMA 1 2011 June Thunderstorm Wind C 129 WASHINGTON MOB 07-JUN-11 16:25:00 CST-6 07-JUN-11 16:27:00 0 0 0 0 5.00K 0.00K Broadcast Media 52 EG \N \N \N 0 N FRUITDALE 0 N FRUITDALE 31.33 -88.42 31.33 -88.42 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew down numerous trees across the area. CSV -201106 7 1543 201106 7 1545 54334 326264 ALABAMA 1 2011 June Hail C 99 MONROE MOB 07-JUN-11 15:43:00 CST-6 07-JUN-11 15:45:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 N URIAH 0 N URIAH 31.3 -87.5 31.3 -87.5 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. CSV -201106 7 1514 201106 7 1516 54334 326265 ALABAMA 1 2011 June Thunderstorm Wind C 53 ESCAMBIA MOB 07-JUN-11 15:14:00 CST-6 07-JUN-11 15:16:00 0 0 0 0 5.00K 0.00K Broadcast Media 52 EG \N \N \N 1 NE BREWTON 1 NE BREWTON 31.1302 -87.058 31.1302 -87.058 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew shingles off the roof of the WEBJ radio studio. CSV -201105 21 1907 201105 21 1907 52007 309901 MISSOURI 29 2011 May Hail C 21 BUCHANAN EAX 21-MAY-11 19:07:00 CST-6 21-MAY-11 19:07:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 3 ESE HURLINGEN 3 ESE HURLINGEN 39.78 -94.64 39.78 -94.64 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201106 26 2230 201106 26 2230 54109 324444 MISSOURI 29 2011 June Thunderstorm Wind C 61 DAVIESS EAX 26-JUN-11 22:30:00 CST-6 26-JUN-11 22:30:00 0 0 0 0 0.00K 0.00K Amateur Radio 52 EG \N \N \N 3 S JAMESON 3 S JAMESON 39.98 -93.99 39.98 -93.99 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Highway 13 was reported to be blocked by a downed tree. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201104 26 1910 201104 26 1915 50307 300876 MISSISSIPPI 28 2011 April Hail C 93 MARSHALL MEG 26-APR-11 19:10:00 CST-6 26-APR-11 19:15:00 0 0 0 0 0.00K Trained Spotter 1.75 \N \N \N 0 SSE MARIANNA 0 SSE MARIANNA 34.7175 -89.5988 34.7175 -89.5988 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201104 26 2021 201104 26 2026 50307 301136 MISSISSIPPI 28 2011 April Hail C 9 BENTON MEG 26-APR-11 20:21:00 CST-6 26-APR-11 20:26:00 0 0 0 0 0.00K Public 1 \N \N \N 0 N ASHLAND 0 N ASHLAND 34.83 -89.17 34.83 -89.17 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. CSV -201106 17 2244 201106 17 2244 53572 320756 KANSAS 20 2011 June Hail C 17 CHASE ICT 17-JUN-11 22:44:00 CST-6 17-JUN-11 22:44:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 1 ESE SAFFORDVILLE 1 ESE SAFFORDVILLE 38.37 -96.38 38.37 -96.38 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2253 201106 17 2253 53572 320757 KANSAS 20 2011 June Hail C 79 HARVEY ICT 17-JUN-11 22:53:00 CST-6 17-JUN-11 22:53:00 0 0 0 0 0.00K 0.00K Trained Spotter 1.25 \N \N \N 3 WNW ANNELLY 3 WNW ANNELLY 37.98 -97.26 37.98 -97.26 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2303 201106 17 2303 53572 320758 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:03:00 CST-6 17-JUN-11 23:03:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 1 ESE WHITEWATER 1 ESE WHITEWATER 37.96 -97.13 37.96 -97.13 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2304 201106 17 2304 53572 320759 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:04:00 CST-6 17-JUN-11 23:04:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.5 \N \N \N 1 S WHITEWATER 1 S WHITEWATER 37.95 -97.15 37.95 -97.15 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2315 201106 17 2315 53572 320760 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:15:00 CST-6 17-JUN-11 23:15:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 1 S POTWIN 1 S POTWIN 37.94 -97.02 37.94 -97.02 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2327 201106 17 2327 53572 320761 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:27:00 CST-6 17-JUN-11 23:27:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 4 NNW EL DORADO RES 4 NNW EL DORADO RES 37.92 -96.86 37.92 -96.86 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2330 201106 17 2330 53572 320763 KANSAS 20 2011 June Hail C 15 BUTLER ICT 17-JUN-11 23:30:00 CST-6 17-JUN-11 23:30:00 0 0 0 0 0.00K 0.00K Emergency Manager 2.75 \N \N \N 4 E POTWIN 4 E POTWIN 37.94 -96.95 37.94 -96.95 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Baseball sized hail was reported at Highway 196 and Shumway road. CSV -201106 18 1815 201106 18 1815 53573 320800 KANSAS 20 2011 June Hail C 15 BUTLER ICT 18-JUN-11 18:15:00 CST-6 18-JUN-11 18:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 4 NNW LATHAM 4 NNW LATHAM 37.59 -96.68 37.59 -96.68 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 20 1937 201106 20 1937 53576 320966 KANSAS 20 2011 June Thunderstorm Wind C 49 ELK ICT 20-JUN-11 19:37:00 CST-6 20-JUN-11 19:37:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 4 W HOWARD 4 W HOWARD 37.46 -96.35 37.46 -96.35 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 18 1400 201106 30 2359 52967 316764 NEW MEXICO 35 2011 June Wildfire Z 514 SOUTHERN SANGRE DE CRISTO MOUNTAINS ABOVE 9500 FEET ABQ 18-JUN-11 14:00:00 MST-7 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N The Pacheco wildfire was a human caused wildfire that began two miles north of the Santa Fe Ski Basin during the afternoon of the 18th. This fire continued into July before it was contained. The Pacheco fire scorched 10,250 acres in all. Though no buildings were damaged, 12 power poles burned during the event. This power line fed both the Tesuque Peak NOAA weather radio transmitter as well as the Santa Fe Ski Basin. After some communication interruption, generators were installed to facilitate operations. Total damage estimates will be entered at the end of the event. CSV -201106 21 1930 201106 21 1940 54383 326480 TEXAS 48 2011 June Hail C 173 GLASSCOCK MAF 21-JUN-11 19:30:00 CST-6 21-JUN-11 19:40:00 0 0 0 0 0.00K 0.00K COOP Observer 1.5 \N \N \N 11 W ST LAWRENCE 11 W ST LAWRENCE 31.7 -101.68 31.7 -101.68 A cold front provided a focus for scattered thunderstorm development through the evening hours. Steep mid level lapse rates and modest deep layer shear resulted in several large hail reports across west Texas, as a minor mid level shortwave trough passed overhead. CSV -201106 21 2144 201106 21 2149 54383 326482 TEXAS 48 2011 June Hail C 103 CRANE MAF 21-JUN-11 21:44:00 CST-6 21-JUN-11 21:49:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 ESE CRANE J BAR ARPT 1 ESE CRANE J BAR ARPT 31.52 -102.51 31.52 -102.51 A cold front provided a focus for scattered thunderstorm development through the evening hours. Steep mid level lapse rates and modest deep layer shear resulted in several large hail reports across west Texas, as a minor mid level shortwave trough passed overhead. CSV -201106 21 2300 201106 21 2305 54383 326483 TEXAS 48 2011 June Hail C 371 PECOS MAF 21-JUN-11 23:00:00 CST-6 21-JUN-11 23:05:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 WSW IRAAN 1 WSW IRAAN 30.91 -101.9 30.91 -101.9 A cold front provided a focus for scattered thunderstorm development through the evening hours. Steep mid level lapse rates and modest deep layer shear resulted in several large hail reports across west Texas, as a minor mid level shortwave trough passed overhead. CSV -201106 5 1326 201106 5 1326 52097 310555 MISSISSIPPI 28 2011 June Hail C 59 JACKSON LIX 05-JUN-11 13:26:00 CST-6 05-JUN-11 13:26:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 0 N HURLEY 0 N HURLEY 30.67 -88.5 30.67 -88.5 A weak upper air disturbance moving through very moist and unstable air allowed the development of isolated thunderstorms that produced two reports of severe weather. Quarter size hail was reported in Hurley. CSV -201106 5 1908 201106 5 1908 52097 310556 MISSISSIPPI 28 2011 June Thunderstorm Wind C 147 WALTHALL LIX 05-JUN-11 19:08:00 CST-6 05-JUN-11 19:08:00 0 0 0 0 2.00K 0.00K Law Enforcement 60 EG \N \N \N 0 N TYLERTOWN 0 N TYLERTOWN 31.12 -90.15 31.12 -90.15 A weak upper air disturbance moving through very moist and unstable air allowed the development of isolated thunderstorms that produced two reports of severe weather. A few trees were reported blown down in Tylertown. CSV -201106 6 1245 201106 6 1245 52098 310557 LOUISIANA 22 2011 June Hail C 105 TANGIPAHOA LIX 06-JUN-11 12:45:00 CST-6 06-JUN-11 12:45:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 0 N PONCHATOULA 0 N PONCHATOULA 30.43 -90.43 30.43 -90.43 An upper low centered near the Louisiana coast combined with hot and unstable air allowed the development of scattered severe thunderstorms during the heat of the afternoon. Quarter size hail was observed in Ponchatoula. CSV -201106 7 1515 201106 7 1517 54334 326278 ALABAMA 1 2011 June Thunderstorm Wind C 53 ESCAMBIA MOB 07-JUN-11 15:15:00 CST-6 07-JUN-11 15:17:00 0 0 0 0 3.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N BREWTON 0 N BREWTON 31.12 -87.07 31.12 -87.07 Afternoon thunderstorms produced high winds and large hail across portions of southwest Alabama. Winds estimated at 60 mph blew several trees down. CSV -201106 7 1340 201106 7 1342 54337 326285 MISSISSIPPI 28 2011 June Thunderstorm Wind C 111 PERRY MOB 07-JUN-11 13:40:00 CST-6 07-JUN-11 13:42:00 0 0 0 0 2.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N RICHTON 0 N RICHTON 31.35 -88.95 31.35 -88.95 A thunderstorm produce damaging winds in southeast Mississippi. Winds estimated at 60 mph knocked trees down on power lines in Richton. CSV -201106 3 1909 201106 3 1911 54338 326289 MISSISSIPPI 28 2011 June Thunderstorm Wind C 39 GEORGE MOB 03-JUN-11 19:09:00 CST-6 03-JUN-11 19:11:00 0 0 0 0 5.00K 0.00K Public 52 EG \N \N \N 2 E LUCEDALE 2 E LUCEDALE 30.92 -88.5463 30.92 -88.5463 Afternoon tunderstorms produced large hail and damaging winds in southeast Mississippi. Winds estimated at 60 mph downed trees and power lines. CSV -201106 3 1915 201106 3 1917 54338 326290 MISSISSIPPI 28 2011 June Hail C 39 GEORGE MOB 03-JUN-11 19:15:00 CST-6 03-JUN-11 19:17:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 N LUCEDALE 0 N LUCEDALE 30.92 -88.58 30.92 -88.58 Afternoon tunderstorms produced large hail and damaging winds in southeast Mississippi. CSV -201106 5 1435 201106 5 1437 54417 326761 ALABAMA 1 2011 June Thunderstorm Wind C 99 MONROE MOB 05-JUN-11 14:35:00 CST-6 05-JUN-11 14:37:00 0 0 0 0 20.00K 0.00K Emergency Manager 61 EG \N \N \N 2 S URIAH 2 S URIAH 31.2711 -87.5 31.2711 -87.5 A thunderstorm produced high winds that caused damage in southwest Alabama. Winds estimated at 70 mph damaged about a dozen homes. CSV -201106 8 1135 201106 8 1137 54420 326766 FLORIDA 12 2011 June Hail C 91 OKALOOSA MOB 08-JUN-11 11:35:00 CST-6 08-JUN-11 11:37:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 5 W CRESTVIEW 5 W CRESTVIEW 30.75 -86.6842 30.75 -86.6842 Thunderstorms produced large hail in the western Florida Panhandle. CSV -201106 8 1135 201106 8 1137 54420 326767 FLORIDA 12 2011 June Hail C 91 OKALOOSA MOB 08-JUN-11 11:35:00 CST-6 08-JUN-11 11:37:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 5 E CRESTVIEW 5 E CRESTVIEW 30.75 -86.5158 30.75 -86.5158 Thunderstorms produced large hail in the western Florida Panhandle. CSV -201106 6 1235 201106 6 1237 54592 327831 ALABAMA 1 2011 June Hail C 97 MOBILE MOB 06-JUN-11 12:35:00 CST-6 06-JUN-11 12:37:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 2 N GRAND BAY 2 N GRAND BAY 30.499 -88.35 30.499 -88.35 Thunderstorms developed during the afternoon hours and produced large hail across portions of southwest Alabama. CSV -201106 6 1320 201106 6 1322 54592 327839 ALABAMA 1 2011 June Hail C 3 BALDWIN MOB 06-JUN-11 13:20:00 CST-6 06-JUN-11 13:22:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 0 N SUMMERDALE 0 N SUMMERDALE 30.48 -87.7 30.48 -87.7 Thunderstorms developed during the afternoon hours and produced large hail across portions of southwest Alabama. CSV -201105 21 2007 201105 21 2007 52007 309908 MISSOURI 29 2011 May Hail C 79 GRUNDY EAX 21-MAY-11 20:07:00 CST-6 21-MAY-11 20:07:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 3 NE COBURN 3 NE COBURN 40.01 -93.7 40.01 -93.7 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201106 18 224 201106 18 224 53572 320779 KANSAS 20 2011 June Thunderstorm Wind C 167 RUSSELL ICT 18-JUN-11 02:24:00 CST-6 18-JUN-11 02:24:00 0 0 0 0 0.00K 0.00K ASOS 51 MG \N \N \N 1 NE (RSL)RUSSELL MUNI AR 1 NE (RSL)RUSSELL MUNI AR 38.8754 -98.8109 38.8754 -98.8109 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Measured at the Russell Municipal Airport. CSV -201106 18 241 201106 18 241 53572 320780 KANSAS 20 2011 June Thunderstorm Wind C 17 CHASE ICT 18-JUN-11 02:41:00 CST-6 18-JUN-11 02:41:00 0 0 0 0 0.00K 0.00K Trained Spotter 55 EG \N \N \N 3 SE COTTONWOOD FALLS 3 SE COTTONWOOD FALLS 38.34 -96.5 38.34 -96.5 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Strong winds destroyed a greenhouse and blew out several tree limbs. CSV -201106 18 1700 201106 18 1700 53573 320788 KANSAS 20 2011 June Thunderstorm Wind C 35 COWLEY ICT 18-JUN-11 17:00:00 CST-6 18-JUN-11 17:00:00 0 0 0 0 0.00K 0.00K Emergency Manager 55 EG \N \N \N 1 E ARKANSAS CITY 1 E ARKANSAS CITY 37.07 -97.04 37.07 -97.04 Strong storms produced widespread hail across much of South Central and Southeast Kansas. Widespread power outages were reported in Arkansas City due to power lines being blown down. CSV -201106 20 2042 201106 20 2042 53576 320974 KANSAS 20 2011 June Hail C 205 WILSON ICT 20-JUN-11 20:42:00 CST-6 20-JUN-11 20:42:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N FREDONIA 0 N FREDONIA 37.53 -95.82 37.53 -95.82 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 2054 201106 20 2054 53576 320975 KANSAS 20 2011 June Hail C 1 ALLEN ICT 20-JUN-11 20:54:00 CST-6 20-JUN-11 20:54:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 4 W HUMBOLDT 4 W HUMBOLDT 37.81 -95.51 37.81 -95.51 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 2101 201106 20 2101 53576 320976 KANSAS 20 2011 June Thunderstorm Wind C 1 ALLEN ICT 20-JUN-11 21:01:00 CST-6 20-JUN-11 21:01:00 0 0 0 0 0.00K 0.00K Trained Spotter 61 MG \N \N \N 1 WNW IOLA 1 WNW IOLA 37.93 -95.42 37.93 -95.42 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Measured wind gust reported by a trained spotter. Quarter sized hail was also reported. CSV -201106 20 2123 201106 20 2123 53576 320977 KANSAS 20 2011 June Thunderstorm Wind C 125 MONTGOMERY ICT 20-JUN-11 21:23:00 CST-6 20-JUN-11 21:23:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N INDEPDENCE ARPT 0 N INDEPDENCE ARPT 37.15 -95.78 37.15 -95.78 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 18 1610 201106 18 1631 54264 325642 GEORGIA 13 2011 June Thunderstorm Wind C 227 PICKENS FFC 18-JUN-11 16:10:00 EST-5 18-JUN-11 16:31:00 0 0 0 0 300.00K 0.00K Emergency Manager 52 EG \N \N \N 5 WNW BLAINE 5 SE MARBLEHILL 34.5477 -84.6312 34.3688 -84.268 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Pickens County Emergency Management Director widespread and extensive tree damage across the county with dozens of trees were down throughout the county. Several structures were damaged from downed trees and several roads were blocked. CSV -201106 18 1640 201106 18 1707 54264 326144 GEORGIA 13 2011 June Thunderstorm Wind C 223 PAULDING FFC 18-JUN-11 16:40:00 EST-5 18-JUN-11 17:07:00 0 0 0 0 15.00K 0.00K County Official 51 EG \N \N \N 7 NNW REMUS 3 SSW FOXBORO 34.08 -84.91 33.81 -84.73 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Paulding County 911 Center reported widespread damage to trees across the county. Dozens of trees were down across the county. CSV -201106 18 1715 201106 18 1715 53573 320792 KANSAS 20 2011 June Hail C 35 COWLEY ICT 18-JUN-11 17:15:00 CST-6 18-JUN-11 17:15:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.25 \N \N \N 1 E ARKANSAS CITY 1 E ARKANSAS CITY 37.07 -97.04 37.07 -97.04 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 18 1715 201106 18 1715 53573 320793 KANSAS 20 2011 June Hail C 205 WILSON ICT 18-JUN-11 17:15:00 CST-6 18-JUN-11 17:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 E FREDONIA 1 E FREDONIA 37.53 -95.81 37.53 -95.81 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 18 1833 201106 18 1833 53573 320804 KANSAS 20 2011 June Hail C 19 CHAUTAUQUA ICT 18-JUN-11 18:33:00 CST-6 18-JUN-11 18:33:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 4 S CEDAR VALE 4 S CEDAR VALE 37.04 -96.5 37.04 -96.5 Strong storms produced widespread hail across much of South Central and Southeast Kansas. CSV -201106 30 1940 201106 30 1940 54639 328096 GEORGIA 13 2011 June Lightning C 167 JOHNSON FFC 30-JUN-11 19:40:00 EST-5 30-JUN-11 19:40:00 0 0 0 0 50.00K 0.00K Emergency Manager \N \N \N \N 0 N SCOTT 0 N SCOTT 32.55 -82.67 32.55 -82.67 A stationary front was draped across south Georgia. A persistent strong subtropical ridge remained over the south central U.S. with an equally persistent weak upper trough lingering over the southeast U.S. A hot, humid, air mass remained in place across central and south Georgia and was sufficient for isolated thunderstorms to develop across this portion of the state during the afternoon. The activity moved west and southwest around the southeast side of the subtropical ridge. Damaging winds were once again the main issue. The Johnson County Emergency Management Director reported that a house was struck and set on fire by lightning in Scott. Minor to moderate damage to the structure was observed. CSV -201106 21 1900 201106 21 1900 51193 303617 LAKE MICHIGAN 91 2011 June Marine Thunderstorm Wind Z 645 NORTH PT LT TO WIND PT WI MKX 21-JUN-11 19:00:00 CST-6 21-JUN-11 19:00:00 0 0 0 0 0.00K 0.00K C-MAN Station 41 MG \N \N \N 3 SE NORTH POINT LTHOUSE 3 SE NORTH POINT LTHOUSE 43.046 -87.879 43.046 -87.879 Several rounds of strong thunderstorms affected the near shore waters of Lake Michigan during the afternoon of June 21st. One line of thunderstorms resulted in strong winds at one of the marine observations stations. CSV -201106 30 1930 201106 30 1930 51527 306440 LAKE MICHIGAN 91 2011 June Marine Thunderstorm Wind Z 645 NORTH PT LT TO WIND PT WI MKX 30-JUN-11 19:30:00 CST-6 30-JUN-11 19:30:00 0 0 0 0 0.00K 0.00K C-MAN Station 34 MG \N \N \N 3 SE NORTH POINT LTHOUSE 3 SE NORTH POINT LTHOUSE 43.046 -87.879 43.046 -87.879 Strong thunderstorms moving south over the near shore and open waters of Lake Michigan produced damaging outflow winds. CSV -201106 16 1304 201106 16 1306 54633 328060 ALABAMA 1 2011 June Hail C 97 MOBILE MOB 16-JUN-11 13:04:00 CST-6 16-JUN-11 13:06:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 5 SE MOBILE BATES FLD 5 SE MOBILE BATES FLD 30.6288 -88.1705 30.6288 -88.1705 Thunderstorms developed during the afternoon and produced high winds that caused damage. CSV -201106 16 1249 201106 16 1251 54633 328062 ALABAMA 1 2011 June Hail C 97 MOBILE MOB 16-JUN-11 12:49:00 CST-6 16-JUN-11 12:51:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 7 ENE MOBILE BATES FLD 7 ENE MOBILE BATES FLD 30.7188 -88.1211 30.7188 -88.1211 Thunderstorms developed during the afternoon and produced high winds that caused damage. CSV -201106 16 1304 201106 16 1306 54633 328063 ALABAMA 1 2011 June Thunderstorm Wind C 97 MOBILE MOB 16-JUN-11 13:04:00 CST-6 16-JUN-11 13:06:00 0 0 0 0 2.00K 0.00K Emergency Manager 52 EG \N \N \N 5 SE MOBILE BATES FLD 5 SE MOBILE BATES FLD 30.6288 -88.1705 30.6288 -88.1705 Thunderstorms developed during the afternoon and produced high winds that caused damage. Winds estimated at 60 mph downed a tree near Hillcrest and Cottage Hill roads. CSV -201106 16 1345 201106 16 1347 54633 328064 ALABAMA 1 2011 June Hail C 97 MOBILE MOB 16-JUN-11 13:45:00 CST-6 16-JUN-11 13:47:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.5 \N \N \N 4 NW MOBILE BATES FLD 4 NW MOBILE BATES FLD 30.7209 -88.2776 30.7209 -88.2776 Thunderstorms developed during the afternoon and produced high winds that caused damage. CSV -201106 16 1545 201106 16 1547 54633 328065 ALABAMA 1 2011 June Thunderstorm Wind C 35 CONECUH MOB 16-JUN-11 15:45:00 CST-6 16-JUN-11 15:47:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N EVERGREEN 0 N EVERGREEN 31.43 -86.97 31.43 -86.97 Thunderstorms developed during the afternoon and produced high winds that caused damage. Winds estimated at 60 mph downed trees in Evergreen. CSV -201106 21 1940 201106 21 1942 54636 328071 ALABAMA 1 2011 June Thunderstorm Wind C 99 MONROE MOB 21-JUN-11 19:40:00 CST-6 21-JUN-11 19:42:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N FRISCO CITY 0 N FRISCO CITY 31.43 -87.42 31.43 -87.42 Thunderstorms produced high winds that caused damage in southwest Alabama. Winds estimated at 60 mph downed trees and power lines. CSV -201105 1 0 201105 31 2359 52262 311822 NEW MEXICO 35 2011 May Drought Z 515 EAST SLOPES OF THE SANGRE DE CRISTO MOUNTAINS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 10 1357 201106 10 1358 53210 318227 ILLINOIS 17 2011 June Hail C 101 LAWRENCE ILX 10-JUN-11 13:57:00 CST-6 10-JUN-11 13:58:00 0 0 0 0 0.00K 0.00K COOP Observer 0.88 \N \N \N 2 ENE BIRDS 2 ENE BIRDS 38.84 -87.63 38.84 -87.63 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201106 10 1430 201106 10 1431 53210 318228 ILLINOIS 17 2011 June Hail C 49 EFFINGHAM ILX 10-JUN-11 14:30:00 CST-6 10-JUN-11 14:31:00 0 0 0 0 0.00K 0.00K Mesonet 0.75 \N \N \N 1 NNW EDGEWOOD 1 NNW EDGEWOOD 38.94 -88.66 38.94 -88.66 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201112 3 0 201112 3 1700 60095 358767 ARIZONA 4 2011 December Heavy Snow Z 16 EASTERN MOGOLLON RIM FGZ 03-DEC-11 00:00:00 MST-7 03-DEC-11 17:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A cold winter storm followed closely on the heals of the December 1-2, 2011 storm. The second storm had lower snow levels with not as much snow as the first storm at the higher elevations. Eleven inches of snow fell in Forest Lakes. CSV -201106 10 1432 201106 10 1433 53210 318229 ILLINOIS 17 2011 June Hail C 49 EFFINGHAM ILX 10-JUN-11 14:32:00 CST-6 10-JUN-11 14:33:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 0 W EDGEWOOD 0 W EDGEWOOD 38.92 -88.65 38.92 -88.65 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201106 30 1740 201106 30 1740 54300 325955 NEBRASKA 31 2011 June Thunderstorm Wind C 161 SHERIDAN LBF 30-JUN-11 17:40:00 MST-7 30-JUN-11 17:40:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 5 SSE RUSHVILLE 5 SSE RUSHVILLE 42.66 -102.4 42.66 -102.4 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. Spotter estimated winds to 60 mph. CSV -201106 30 1805 201106 30 1805 54300 325956 NEBRASKA 31 2011 June Hail C 161 SHERIDAN LBF 30-JUN-11 18:05:00 MST-7 30-JUN-11 18:05:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 SE GORDON 1 SE GORDON 42.79 -102.18 42.79 -102.18 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 30 1905 201106 30 1905 54300 325957 NEBRASKA 31 2011 June Thunderstorm Wind C 31 CHERRY LBF 30-JUN-11 19:05:00 CST-6 30-JUN-11 19:05:00 0 0 0 0 0.00K 0.00K Public 52 EG \N \N \N 22 S IRWIN 22 S IRWIN 42.57 -101.9 42.57 -101.9 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. Public estimated winds to 52 knots. CSV -201106 30 1816 201106 30 1816 54300 325958 NEBRASKA 31 2011 June Hail C 5 ARTHUR LBF 30-JUN-11 18:16:00 MST-7 30-JUN-11 18:16:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 11 ENE ARTHUR 11 ENE ARTHUR 41.63 -101.51 41.63 -101.51 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 30 1945 201106 30 1945 54300 325960 NEBRASKA 31 2011 June Hail C 31 CHERRY LBF 30-JUN-11 19:45:00 CST-6 30-JUN-11 19:45:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 2 SW CODY 2 SW CODY 42.91 -101.29 42.91 -101.29 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 30 1815 201106 30 1815 54300 325962 NEBRASKA 31 2011 June Hail C 5 ARTHUR LBF 30-JUN-11 18:15:00 MST-7 30-JUN-11 18:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 6 ESE ARTHUR 6 ESE ARTHUR 41.54 -101.6 41.54 -101.6 Scattered thunderstorms developed in the Nebraska Panhandle during the afternoon in advance of a cold front. Hail up to ping pong size fell with strong damaging wind gusts as well. CSV -201106 30 1400 201106 30 1400 51591 306642 LOUISIANA 22 2011 June Hail C 13 BIENVILLE SHV 30-JUN-11 14:00:00 CST-6 30-JUN-11 14:00:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 1 NE ARCADIA 1 NE ARCADIA 32.56 -92.91 32.56 -92.91 Strong to severe thunderstorms erupted during the late afternoon and evening hours of June 30th across the Four State Region. These storms developed due to a moderately unstable airmass across the region with afternoon temperatures over 100 degrees. Once these storms collapsed, they producing strong and damaging wind gusts and large hail. Additional storms developed along outflow boundaries produced by earlier storms. Hail fell just north of Interstate 20 on Hwy. 151. CSV -201106 5 700 201106 7 700 51806 308621 HAWAII 15 2011 June High Surf Z 16 KAHOOLAWE HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201106 5 700 201106 7 700 51806 308622 HAWAII 15 2011 June High Surf Z 18 MAUI LEEWARD WEST HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201106 5 700 201106 7 700 51806 308623 HAWAII 15 2011 June High Surf Z 19 MAUI CENTRAL VALLEY HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201106 5 700 201106 7 700 51806 308624 HAWAII 15 2011 June High Surf Z 21 LEEWARD HALEAKALA HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201106 5 700 201106 7 700 51806 308625 HAWAII 15 2011 June High Surf Z 23 KONA HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201106 5 1321 201106 5 1321 53240 318490 TENNESSEE 47 2011 June Hail C 133 OVERTON OHX 05-JUN-11 13:21:00 CST-6 05-JUN-11 13:21:00 0 0 0 0 0.00K 0.00K Public 0.88 \N \N \N 0 N HILHAM 0 N HILHAM 36.42 -85.43 36.42 -85.43 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. CSV -201106 5 700 201106 7 700 51806 308626 HAWAII 15 2011 June High Surf Z 24 SOUTH BIG ISLAND HFO 05-JUN-11 07:00:00 HST-10 07-JUN-11 07:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A swell from the southern hemisphere generated surf of 6 to 8 feet along the south-facing shores of all the islands. There were no reports of serious property damage or injuries, though a convenience store in Makaha on Oahu's leeward coast did see high water for a time in the evening of the 5th of June. High tide coincided with high surf, and this combination was enough to affect this one isolated area. CSV -201105 24 1520 201105 24 1520 52627 314499 VIRGINIA 51 2011 May Thunderstorm Wind C 740 PORTSMOUTH (C) AKQ 24-MAY-11 15:20:00 EST-5 24-MAY-11 15:20:00 0 0 0 0 2.00K 0.00K Trained Spotter 50 EG \N \N \N 1 SSE PORTSMOUTH 1 SSE PORTSMOUTH 36.8 -76.32 36.8 -76.32 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Trees were snapped and power lines were downed near Saint Juliens Creek Naval Annex. CSV -201105 24 1520 201105 24 1520 52627 314500 VIRGINIA 51 2011 May Thunderstorm Wind C 1 ACCOMACK AKQ 24-MAY-11 15:20:00 EST-5 24-MAY-11 15:20:00 0 0 0 0 3.00K 0.00K Law Enforcement 50 EG \N \N \N 2 NE ASSAWOMAN 2 NE ASSAWOMAN 37.89 -75.51 37.89 -75.51 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Silos were knocked down and there was other damage in the area. CSV -201105 24 1522 201105 24 1522 52627 314505 VIRGINIA 51 2011 May Thunderstorm Wind C 740 PORTSMOUTH (C) AKQ 24-MAY-11 15:22:00 EST-5 24-MAY-11 15:22:00 0 0 0 0 3.00K 0.00K Trained Spotter 50 EG \N \N \N 2 NE PORTSMOUTH 2 NE PORTSMOUTH 36.84 -76.3 36.84 -76.3 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Large tree branch was downed on a vehicle. There was damage to an NTELOS Pavilion. CSV -201105 24 1524 201105 24 1524 52627 314510 VIRGINIA 51 2011 May Thunderstorm Wind C 550 CHESAPEAKE (C) AKQ 24-MAY-11 15:24:00 EST-5 24-MAY-11 15:24:00 0 0 0 0 2.00K 0.00K Mesonet 60 MG \N \N \N 1 WNW CRESTWOOD 1 WNW CRESTWOOD 36.78 -76.3 36.78 -76.3 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Wind gust of 60 knots (69 mph) was measured. CSV -201105 24 1530 201105 24 1530 52627 314513 VIRGINIA 51 2011 May Thunderstorm Wind C 810 VIRGINIA BEACH (C) AKQ 24-MAY-11 15:30:00 EST-5 24-MAY-11 15:30:00 0 0 0 0 2.00K 0.00K Public 50 EG \N \N \N 0 N WOODS CORNER 0 N WOODS CORNER 36.78 -76.18 36.78 -76.18 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Trees were downed. One tree was downed on a home. CSV -201105 24 1530 201105 24 1530 52627 314514 VIRGINIA 51 2011 May Thunderstorm Wind C 650 HAMPTON (C) AKQ 24-MAY-11 15:30:00 EST-5 24-MAY-11 15:30:00 0 0 0 0 2.00K 0.00K Trained Spotter 63 MG \N \N \N 4 NNE HAMPTON 4 NNE HAMPTON 37.07 -76.32 37.07 -76.32 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Wind gust of 63 knots (72 mph) was measured. Numerous trees and power lines were downed in the Howe Farms Subdivision. CSV -201105 24 1533 201105 24 1533 52627 314517 VIRGINIA 51 2011 May Thunderstorm Wind C 550 CHESAPEAKE (C) AKQ 24-MAY-11 15:33:00 EST-5 24-MAY-11 15:33:00 0 0 0 0 2.00K 0.00K Mesonet 64 MG \N \N \N 1 SW CRESTWOOD 1 SW CRESTWOOD 36.76 -76.29 36.76 -76.29 Scattered severe thunderstorms well in advance of a cold front produced damaging winds and large hail across portions of south central and southeast Virginia. Wind gust of 64 knots (74 mph) was measured at the Virginia Department of Transportation site VA007 at High Rise Bridge. CSV -201106 11 1734 201106 11 1734 54174 324912 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 11-JUN-11 17:34:00 EST-5 11-JUN-11 17:34:00 0 0 0 0 Mesonet 34 EG \N \N \N 0 ESE RACCOON POINT 0 ESE RACCOON POINT 38.139 -75.788 38.139 -75.788 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. A wind gust in excess of 30 knots was measured at Raccoon Point. CSV -201106 11 1738 201106 11 1744 54174 324913 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 11-JUN-11 17:38:00 EST-5 11-JUN-11 17:44:00 0 0 0 0 Mesonet 41 MG \N \N \N 0 SSE CRISFIELD 0 SSE CRISFIELD 37.9666 -75.8773 37.9666 -75.8773 A trough of low pressure combined with plenty of low-level moisture to produce moderate amounts of instability on the eleventh. The instability combined with a surface trough to trigger showers and thunderstorms. Some thunderstorms produced gusty winds over the waters. Wind gusts up to 41 knots were reported at Crisfield. CSV -201106 12 1430 201106 12 1430 54175 324914 ATLANTIC NORTH 88 2011 June Marine Thunderstorm Wind Z 542 PATUXENT RIVER TO BROOMES ISLAND MD LWX 12-JUN-11 14:30:00 EST-5 12-JUN-11 14:30:00 0 0 0 0 Mesonet 37 MG \N \N \N 0 SSW CHESAPEAKE BIOLOGICAL LABORATORY 0 SSW CHESAPEAKE BIOLOGICAL LABORATORY 38.317 -76.452 38.317 -76.452 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce gusty winds over the waters. A wind gust of 37 knots was reported at Solomons Island. CSV -201104 16 1740 201104 16 1740 50328 300116 VIRGINIA 51 2011 April Thunderstorm Wind C 43 CLARKE LWX 16-APR-11 17:40:00 EST-5 16-APR-11 17:40:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 2 SE MILLWOOD 2 SE MILLWOOD 39.0475 -78.0085 39.0475 -78.0085 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was down over Route 723 near Route 50. CSV -201104 16 1743 201104 16 1743 50328 300117 VIRGINIA 51 2011 April Thunderstorm Wind C 43 CLARKE LWX 16-APR-11 17:43:00 EST-5 16-APR-11 17:43:00 0 0 0 0 2.00K Fire Department/Rescue 56 EG \N \N \N 3 ESE CLAYTONVILLE 3 ESE CLAYTONVILLE 39.0687 -77.9683 39.0687 -77.9683 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Power poles and a transformer was down along Calmes Neck Lane. CSV -201104 16 1734 201104 16 1734 50328 300142 VIRGINIA 51 2011 April Thunderstorm Wind C 187 WARREN LWX 16-APR-11 17:34:00 EST-5 16-APR-11 17:34:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 2 NE FRONT ROYAL WARN ARP 2 NE FRONT ROYAL WARN ARP 38.9452 -78.2263 38.9452 -78.2263 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A tree was blocking Punch Run Road off Strasburg Road. CSV -201104 16 1242 201104 16 1242 50328 300181 VIRGINIA 51 2011 April Thunderstorm Wind C 15 AUGUSTA LWX 16-APR-11 12:42:00 EST-5 16-APR-11 12:42:00 0 0 0 0 3.00K Public 52 EG \N \N \N 3 ENE CHURCHVILLE 3 ENE CHURCHVILLE 38.247 -79.1073 38.247 -79.1073 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Four to five large trees were down along Moffett Branch Road. Trees were about twenty feet high. CSV -201104 16 1315 201104 16 1315 50328 300184 VIRGINIA 51 2011 April Thunderstorm Wind C 165 ROCKINGHAM LWX 16-APR-11 13:15:00 EST-5 16-APR-11 13:15:00 0 0 0 0 1.00K Fire Department/Rescue 52 EG \N \N \N 4 SSW ATHLONE 4 SSW ATHLONE 38.4747 -78.7276 38.4747 -78.7276 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop. ||There was enough instability along with strong winds aloft for some thunderstorms to become severe. A few trees were down about five miles north of Massanutten. CSV -201104 2 1422 201104 2 1422 51055 302387 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 532 CHESAPEAKE BAY SANDY PT TO N BEACH MD LWX 02-APR-11 14:22:00 EST-5 02-APR-11 14:22:00 0 0 0 0 Mesonet 34 EG \N \N \N 0 SE GREENBERRY POINT 0 SE GREENBERRY POINT 38.9684 -76.4577 38.9684 -76.4577 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust in excess of 30 knots was reported at Greenberry Point. CSV -201104 2 1506 201104 2 1506 51055 302390 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 541 CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER LWX 02-APR-11 15:06:00 EST-5 02-APR-11 15:06:00 0 0 0 0 Buoy 38 MG \N \N \N 0 N CAMBRIDGE 0 N CAMBRIDGE 38.57 -76.07 38.57 -76.07 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 38 knots was reported at Cambridge. CSV -201104 2 1520 201104 2 1520 51055 302392 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 536 TIDAL POTOMAC INDIAN HD TO COBB IS MD LWX 02-APR-11 15:20:00 EST-5 02-APR-11 15:20:00 0 0 0 0 Mesonet 34 EG \N \N \N 0 W POTOMAC LIGHT 0 W POTOMAC LIGHT 38.3401 -76.9936 38.3401 -76.9936 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust in excess of 30 knots was reported at the Potomac Lighthouse. CSV -201106 23 1933 201106 23 1933 51665 307130 ATLANTIC SOUTH 87 2011 June Marine Thunderstorm Wind Z 135 PAMLICO SOUND MHX 23-JUN-11 19:33:00 EST-5 23-JUN-11 19:33:00 0 0 0 0 0.00K 0.00K Other Federal Agency 40 MG \N \N \N 8 NW CEDAR ISLAND 8 NW CEDAR ISLAND 35.0512 -76.4785 35.0512 -76.4785 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced damaging wind gusts across the Sounds and coastal waters. Piney Island Bombing Range (KNBT) observed a 40 knot marine wind gust. CSV -201106 23 2027 201106 23 2027 51665 307133 ATLANTIC SOUTH 87 2011 June Marine Thunderstorm Wind Z 154 CP HATTERAS TO OCRACOKE INLET NC OUT 20NM MHX 23-JUN-11 20:27:00 EST-5 23-JUN-11 20:27:00 0 0 0 0 0.00K 0.00K Mesonet 38 MG \N \N \N 8 ENE HATTERAS INLET 8 ENE HATTERAS INLET 35.2282 -75.618 35.2282 -75.618 A weak cold front was centered west of eastern North Carolina on June 23, 2011. Showers and thunderstorms developed ahead of the front during the afternoon hours. Some thunderstorms produced damaging wind gusts across the Sounds and coastal waters. Public mesonet observed a 38 knot marine wind gust near Frisco. CSV -201112 1 1330 201112 2 1600 60094 358733 ARIZONA 4 2011 December Heavy Snow Z 6 GRAND CANYON COUNTRY FGZ 01-DEC-11 13:30:00 MST-7 02-DEC-11 16:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N A low pressure area slowly moving through the Great Basin and Colorado brought snow to northern Arizona. Over a foot of snow fell over portions of the Mogollon Rim where the upslope flow enhanced the snowfall. Eight inches of snow fell at both the South Rim and Desert View. CSV -201112 1 2000 201112 2 1600 60094 358748 ARIZONA 4 2011 December Heavy Snow Z 13 LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY FGZ 01-DEC-11 20:00:00 MST-7 02-DEC-11 16:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure area slowly moving through the Great Basin and Colorado brought snow to northern Arizona. Over a foot of snow fell over portions of the Mogollon Rim where the upslope flow enhanced the snowfall. Heavy snow fell in Snowflake with 15.0 inches and Taylor with 14.0 inches. CSV -201112 1 2200 201112 2 1600 60094 358752 ARIZONA 4 2011 December Heavy Snow Z 13 LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY FGZ 01-DEC-11 22:00:00 MST-7 02-DEC-11 16:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure area slowly moving through the Great Basin and Colorado brought snow to northern Arizona. Over a foot of snow fell over portions of the Mogollon Rim where the upslope flow enhanced the snowfall. Eight inches of snow fell 10 miles south of Petrified Forest National Park. CSV -201112 1 1800 201112 2 1600 60094 358754 ARIZONA 4 2011 December Winter Weather Z 40 NORTHEAST PLATEAUS AND MESAS SOUTH OF HIGHWAY 264 FGZ 01-DEC-11 18:00:00 MST-7 02-DEC-11 16:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure area slowly moving through the Great Basin and Colorado brought snow to northern Arizona. Over a foot of snow fell over portions of the Mogollon Rim where the upslope flow enhanced the snowfall. Five inches of snow fell in Dilkon. CSV -201105 23 2325 201105 23 2325 51932 309401 OKLAHOMA 40 2011 May High Wind Z 64 CREEK TSA 23-MAY-11 23:25:00 CST-6 23-MAY-11 23:25:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N \N \N \N \N \N \N Strong wind developed well behind an area of thunderstorms that moved southeast through the area with gusts to near 60 mph observed in some areas. CSV -201106 5 1321 201106 5 1321 53240 318492 TENNESSEE 47 2011 June Thunderstorm Wind C 141 PUTNAM OHX 05-JUN-11 13:21:00 CST-6 05-JUN-11 13:21:00 0 0 0 0 2.00K 0.00K Public 48 EG \N \N \N 0 N COOKEVILLE 0 N COOKEVILLE 36.17 -85.5 36.17 -85.5 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Large tree branches were blown down. CSV -201106 5 1345 201106 5 1345 53240 318497 TENNESSEE 47 2011 June Hail C 87 JACKSON OHX 05-JUN-11 13:45:00 CST-6 05-JUN-11 13:45:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 NNW BURRISTOWN 1 NNW BURRISTOWN 36.3905 -85.5332 36.3905 -85.5332 A line of strong to severe thunderstorms moved southeast across Middle Tennessee during the afternoon hours of June 5. Several reports of large hail and damaging winds were received. Quarter size hail reported on Highway 85 northeast of Gainesboro. CSV -201106 21 2130 201106 21 2130 53621 321241 OHIO 39 2011 June Thunderstorm Wind C 81 JEFFERSON PBZ 21-JUN-11 21:30:00 EST-5 21-JUN-11 21:30:00 0 0 0 0 10.00K 0.00K Trained Spotter 50 EG \N \N \N 1 E MINGO JCT 1 E MINGO JCT 40.32 -80.61 40.32 -80.61 Scattered thunderstorms developed along a stalled frontal boundary and a few of these became severe. A trained spotter reported trees down. CSV -201106 21 2035 201106 21 2035 53621 321247 OHIO 39 2011 June Thunderstorm Wind C 157 TUSCARAWAS PBZ 21-JUN-11 20:35:00 EST-5 21-JUN-11 20:35:00 0 0 0 0 15.00K 0.00K Department of Highways 50 EG \N \N \N 1 E RAGERSVILLE 1 E RAGERSVILLE 40.4526 -81.61 40.4526 -81.61 Scattered thunderstorms developed along a stalled frontal boundary and a few of these became severe. The Department of Highways reported power lines down in Auburn Township on Buehler Road. CSV -201106 21 2155 201106 21 2155 53622 321251 PENNSYLVANIA 42 2011 June Hail C 7 BEAVER PBZ 21-JUN-11 21:55:00 EST-5 21-JUN-11 21:55:00 0 0 0 0 0.00K Trained Spotter 1 \N \N \N 2 SSW CANNELTON 2 SSW CANNELTON 40.77 -80.5 40.77 -80.5 Scattered thunderstorms developed along a stalled frontal boundary and a few of these became severe. CSV -201106 21 2233 201106 21 2233 53622 321252 PENNSYLVANIA 42 2011 June Hail C 85 MERCER PBZ 21-JUN-11 22:33:00 EST-5 21-JUN-11 22:33:00 0 0 0 0 0.00K Public 1 \N \N \N 0 N HERMITAGE 0 N HERMITAGE 41.23 -80.45 41.23 -80.45 Scattered thunderstorms developed along a stalled frontal boundary and a few of these became severe. CSV -201106 21 2235 201106 21 2235 53622 321253 PENNSYLVANIA 42 2011 June Hail C 85 MERCER PBZ 21-JUN-11 22:35:00 EST-5 21-JUN-11 22:35:00 0 0 0 0 0.00K Public 1 \N \N \N 1 NW FARRELL 1 NW FARRELL 41.23 -80.49 41.23 -80.49 Scattered thunderstorms developed along a stalled frontal boundary and a few of these became severe. CSV -201106 23 1415 201106 23 1415 53624 321258 OHIO 39 2011 June Thunderstorm Wind C 67 HARRISON PBZ 23-JUN-11 14:15:00 EST-5 23-JUN-11 14:15:00 0 0 0 0 15.00K 0.00K Public 50 EG \N \N \N 0 N NEW ATHENS 0 N NEW ATHENS 40.18 -81 40.18 -81 A slow moving cold front moving southeast across the Upper Ohio valley produced scattered severe thunderstorms. The public reported trees down near New Athens. CSV -201106 23 1520 201106 23 1520 53625 321265 PENNSYLVANIA 42 2011 June Thunderstorm Wind C 5 ARMSTRONG PBZ 23-JUN-11 15:20:00 EST-5 23-JUN-11 15:20:00 0 0 0 0 10.00K 0.00K Emergency Manager 50 EG \N \N \N 1 E ORCHARD HILLS 1 E ORCHARD HILLS 40.58 -79.51 40.58 -79.51 A slow moving cold front moving southeast across the Upper Ohio valley produced scattered severe thunderstorms. Emergency management reported a large tree down blocking a road. CSV -201106 17 2030 201106 17 2030 53572 320719 KANSAS 20 2011 June Thunderstorm Wind C 79 HARVEY ICT 17-JUN-11 20:30:00 CST-6 17-JUN-11 20:30:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 1 N HESSTON 1 N HESSTON 38.14 -97.43 38.14 -97.43 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Estimated gust reported by a trained spotter. CSV -201106 17 2033 201106 17 2033 53572 320720 KANSAS 20 2011 June Thunderstorm Wind C 113 MCPHERSON ICT 17-JUN-11 20:33:00 CST-6 17-JUN-11 20:33:00 0 0 0 0 0.00K 0.00K Mesonet 50 MG \N \N \N 0 N MOUNDRIDGE 0 N MOUNDRIDGE 38.2 -97.52 38.2 -97.52 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Measured gust by wind equipment. CSV -201106 17 2037 201106 17 2037 53572 320721 KANSAS 20 2011 June Thunderstorm Wind C 113 MCPHERSON ICT 17-JUN-11 20:37:00 CST-6 17-JUN-11 20:37:00 0 0 0 0 0.00K 0.00K Amateur Radio 61 EG \N \N \N 0 N MOUNDRIDGE 0 N MOUNDRIDGE 38.2 -97.52 38.2 -97.52 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Estimated gust reported by a trained spotter. CSV -201106 17 2044 201106 17 2044 53572 320722 KANSAS 20 2011 June Hail C 169 SALINE ICT 17-JUN-11 20:44:00 CST-6 17-JUN-11 20:44:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.5 \N \N \N 1 WSW SALINA 1 WSW SALINA 38.82 -97.62 38.82 -97.62 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2046 201106 17 2046 53572 320723 KANSAS 20 2011 June Thunderstorm Wind C 113 MCPHERSON ICT 17-JUN-11 20:46:00 CST-6 17-JUN-11 20:46:00 0 0 0 0 0.00K 0.00K Law Enforcement 70 EG \N \N \N 1 S INMAN 1 S INMAN 38.21 -97.77 38.21 -97.77 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. Estimated gust reported by a law enforcement officer. CSV -201106 17 2052 201106 17 2052 53572 320724 KANSAS 20 2011 June Hail C 159 RICE ICT 17-JUN-11 20:52:00 CST-6 17-JUN-11 20:52:00 0 0 0 0 0.00K 0.00K Public 1.75 \N \N \N 9 ESE SAXMAN 9 ESE SAXMAN 38.21 -97.97 38.21 -97.97 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201106 17 2053 201106 17 2053 53572 320725 KANSAS 20 2011 June Hail C 155 RENO ICT 17-JUN-11 20:53:00 CST-6 17-JUN-11 20:53:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 4 N HUTCHINSON 4 N HUTCHINSON 38.12 -97.91 38.12 -97.91 Widespread severe weather packing very strong winds and large hail pummeled all sections of Central, South Central, and Southeast Kansas. CSV -201105 23 2325 201105 23 2325 51932 309391 OKLAHOMA 40 2011 May High Wind Z 66 OKMULGEE TSA 23-MAY-11 23:25:00 CST-6 23-MAY-11 23:25:00 0 0 0 0 0.00K 0.00K Mesonet 52 MG \N \N \N \N \N \N \N \N \N Strong wind developed well behind an area of thunderstorms that moved southeast through the area with gusts to near 60 mph observed in some areas. CSV -201105 23 2325 201105 23 2325 51932 309396 OKLAHOMA 40 2011 May High Wind Z 60 TULSA TSA 23-MAY-11 23:25:00 CST-6 23-MAY-11 23:25:00 0 0 0 0 0.00K 0.00K Emergency Manager 52 EG \N \N \N \N \N \N \N \N \N Strong wind developed well behind an area of thunderstorms that moved southeast through the area with gusts to near 60 mph observed in some areas. CSV -201104 16 1445 201104 16 1445 50832 300208 WEST VIRGINIA 54 2011 April Thunderstorm Wind C 23 GRANT LWX 16-APR-11 14:45:00 EST-5 16-APR-11 14:45:00 0 0 0 0 1.00K Public 61 EG \N \N \N 2 ESE HISER 2 ESE HISER 38.9633 -79.0883 38.9633 -79.0883 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop.||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Trees were down near Dorcas. CSV -201104 16 1442 201104 16 1442 50832 300214 WEST VIRGINIA 54 2011 April Hail C 23 GRANT LWX 16-APR-11 14:42:00 EST-5 16-APR-11 14:42:00 0 0 0 0 Public 1.5 \N \N \N 1 ESE ROUGH RUN 1 ESE ROUGH RUN 38.8978 -79.1069 38.8978 -79.1069 Strong low pressure over the Midwest remained cutoff from jet stream on the 16th. The warm front associated with this system passed through during the morning. Warm and moist southerly winds behind the front provided moderate amounts of instability. The instability combined with forcing from the low for showers and thunderstorms to develop.||There was enough instability along with strong winds aloft for some thunderstorms to become severe. Hail up to the size of ping pong balls was reported near Masonville. CSV -201104 2 1506 201104 2 1506 51055 302405 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 541 CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER LWX 02-APR-11 15:06:00 EST-5 02-APR-11 15:06:00 0 0 0 0 Buoy 38 MG \N \N \N 0 N CAMBRIDGE 0 N CAMBRIDGE 38.57 -76.07 38.57 -76.07 A mid-level trough of low pressure provided enough instability for scattered showers and thunderstorms on the 2nd. Showers and thunderstorms that developed were able to mix down gusty winds from aloft. A wind gust of 38 knots was reported at Cambridge. CSV -201104 5 500 201104 5 500 51057 302406 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 05-APR-11 05:00:00 EST-5 05-APR-11 05:00:00 0 0 0 0 Mesonet 60 MG \N \N \N 0 NE BISHOPS HEAD 0 NE BISHOPS HEAD 38.2211 -76.0382 38.2211 -76.0382 A strong cold front slowly traced through the area during the morning hours of the 5th. A southerly flow ahead of the front caused copious amounts of moisture to move into the region from the Atlantic Ocean and Gulf of Mexico. The deep moisture combined with a mid-level trough that was associated with the cold front to produce moderate amounts of instability. Lift from the cold front along with moderate instability triggered showers and thunderstorms across the waters. ||Thunderstorms were able to mix down gusty winds from aloft. A wind gust of 60 knots was reported at Bishops Head. CSV -201104 5 506 201104 5 512 51057 302409 ATLANTIC NORTH 88 2011 April Marine Thunderstorm Wind Z 543 TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND LWX 05-APR-11 05:06:00 EST-5 05-APR-11 05:12:00 0 0 0 0 Mesonet 54 MG \N \N \N 0 NE BISHOPS HEAD 0 NE BISHOPS HEAD 38.2211 -76.0382 38.2211 -76.0382 A strong cold front slowly traced through the area during the morning hours of the 5th. A southerly flow ahead of the front caused copious amounts of moisture to move into the region from the Atlantic Ocean and Gulf of Mexico. The deep moisture combined with a mid-level trough that was associated with the cold front to produce moderate amounts of instability. Lift from the cold front along with moderate instability triggered showers and thunderstorms across the waters. ||Thunderstorms were able to mix down gusty winds from aloft. Wind gusts up to 54 knots were reported at Bishops Head. CSV -201106 8 157 201106 8 157 54435 326938 LAKE ERIE 95 2011 June Marine Hail Z 41 DUNKIRK TO BUFFALO NY BUF 08-JUN-11 01:57:00 EST-5 08-JUN-11 01:57:00 0 0 0 0 0.00K Law Enforcement 1 \N \N \N 0 N DUNKIRK 0 N DUNKIRK 42.49 -79.34 42.49 -79.34 A thunderstorm complex developed during the late evening hours of the 7th over Lake Huron then moved southeast across the lower Lakes region. As the thunderstorms crossed eastern Lake Erie during the early overnight hours they produced hail measured to one inch in diameter at Dunkirk. CSV -201106 21 2350 201106 21 2350 54438 327056 LAKE ERIE 95 2011 June Marine Thunderstorm Wind Z 40 RIPLEY TO DUNKIRK NY BUF 21-JUN-11 23:50:00 EST-5 21-JUN-11 23:50:00 0 0 0 0 0.00K C-MAN Station 35 MG \N \N \N 0 N BARCELONA 0 N BARCELONA 42.34 -79.6 42.34 -79.6 A warm front brought thunderstorms to the region. One of these thunderstorms over Lake Erie produced wind gusting to 35 knots at Buffalo. CSV -201106 1 350 201106 1 350 54457 327058 NEW YORK 36 2011 June Thunderstorm Wind C 49 LEWIS BUF 01-JUN-11 03:50:00 EST-5 01-JUN-11 03:50:00 0 0 0 0 8.00K 0.00K Law Enforcement 50 MG \N \N \N 0 SW BELFORT 0 SW BELFORT 43.9258 -75.3339 43.9258 -75.3339 Thunderstorms accompanied a cold front that crossed the region. A thunderstorm that struck Lewis County produced winds gusting to 57 mph. The winds downed trees and power lines in Belfort. CSV -201106 4 1050 201106 4 1050 54460 327059 NEW YORK 36 2011 June Thunderstorm Wind C 13 CHAUTAUQUA BUF 04-JUN-11 10:50:00 EST-5 04-JUN-11 10:50:00 0 0 0 0 15.00K 0.00K State Official 51 MG \N \N \N 1 NNE DUNKIRK 1 NNE DUNKIRK 42.4969 -79.318 42.4969 -79.318 The region was under the influence of a warm, humid air mass as a weak cold front crossed western New York. Thunderstorms along the front produced wind gusts estimated to near 60 mph which downed trees in Wright Park and Memorial Park. CSV -201106 8 157 201106 8 157 54467 327069 NEW YORK 36 2011 June Hail C 13 CHAUTAUQUA BUF 08-JUN-11 01:57:00 EST-5 08-JUN-11 01:57:00 0 0 0 0 5.00K 0.00K Law Enforcement 1 \N \N \N 1 NW DUNKIRK 1 NW DUNKIRK 42.49 -79.34 42.49 -79.34 A thunderstorm complex developed during the late evening hours of the 7th over Lake Huron then moved southeast across the lower Lakes region. As the thunderstorms crossed eastern Lake Erie and moved onshore in Chautauqua county during the early overnight hours they produced hail measured to one inch in diameter at Dunkirk. CSV -201106 23 252 201106 23 252 54468 327074 NEW YORK 36 2011 June Thunderstorm Wind C 51 LIVINGSTON BUF 23-JUN-11 02:52:00 EST-5 23-JUN-11 02:52:00 0 0 0 0 20.00K 0.00K State Official 60 EG \N \N \N 0 E LAKEVILLE 0 E LAKEVILLE 42.8293 -77.6936 42.8293 -77.6936 A line of thunderstorm developed in a southwest flow of moist, unstable air. The thunderstorms bowed across Livingston county producing wind gusts to 60 mph. The winds downed several trees near Lakeville. One of the trees fell onto a house resulting in moderate structural damage. A downed tree damaged a house on Boller Street. CSV -201106 22 1940 201106 22 1940 54469 327098 NEW YORK 36 2011 June Hail C 69 ONTARIO BUF 22-JUN-11 19:40:00 EST-5 22-JUN-11 19:40:00 0 0 0 0 8.00K 0.00K Public 1.25 \N \N \N 2 WNW STANLEY 2 WNW STANLEY 42.83 -77.13 42.83 -77.13 Evening convection developed near the Lake Ontario lake breeze. One thunderstorm in particular produced hail up to 1.25 inches near Gorham. CSV -201105 23 1156 201105 23 1156 51656 306994 MICHIGAN 26 2011 May Thunderstorm Wind C 111 MIDLAND DTX 23-MAY-11 11:56:00 EST-5 23-MAY-11 11:56:00 0 0 0 0 0.00K 0.00K Amateur Radio 52 EG \N \N \N 2 NE MIDLAND 2 NE MIDLAND 43.64 -84.2 43.64 -84.2 Numerous severe thunderstorms impacted areas south of M-59. Several trees and large tree limbs reported down. CSV -201106 16 1745 201106 16 1745 54471 327110 NEW YORK 36 2011 June Thunderstorm Wind C 13 CHAUTAUQUA BUF 16-JUN-11 17:45:00 EST-5 16-JUN-11 17:45:00 0 0 0 0 15.00K 0.00K State Official 50 MG \N \N \N 1 W JAMESTOWN 1 W JAMESTOWN 42.1 -79.24 42.1 -79.24 A well defined upper trough crossed the lower Great Lakes region and generated thunderstorms across western New York. One of the storms produced winds which downed trees and power lines in Jamestown. CSV -201106 12 1640 201106 12 1640 53940 324209 MARYLAND 24 2011 June Thunderstorm Wind C 17 CHARLES LWX 12-JUN-11 16:40:00 EST-5 12-JUN-11 16:40:00 0 0 0 0 1.00K Trained Spotter 56 EG \N \N \N 0 SSE INDIAN HEAD 0 SSE INDIAN HEAD 38.596 -77.167 38.596 -77.167 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. A trellis was destroyed and a tree was down near Indian Head. CSV -201106 12 1640 201106 12 1640 53940 324210 MARYLAND 24 2011 June Thunderstorm Wind C 17 CHARLES LWX 12-JUN-11 16:40:00 EST-5 12-JUN-11 16:40:00 0 0 0 0 5.00K Public 56 EG \N \N \N 0 E INDIAN HEAD 0 E INDIAN HEAD 38.6002 -77.1622 38.6002 -77.1622 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. Multiple trees were down around Indian Head. CSV -201106 12 1644 201106 12 1644 53940 324211 MARYLAND 24 2011 June Thunderstorm Wind C 17 CHARLES LWX 12-JUN-11 16:44:00 EST-5 12-JUN-11 16:44:00 0 0 0 0 1.00K Fire Department/Rescue 56 EG \N \N \N 1 E RISON 1 E RISON 38.5518 -77.1628 38.5518 -77.1628 A cold front combined with moderate instability to trigger showers and thunderstorms on the twelfth. Stronger winds aloft due to an upper-level low over New England caused thunderstorms to become well organized. Thunderstorms were able to produce damaging wind gusts along wit large hail. A tree was down near Serenity Lane and Sweetman Road. CSV -201106 1 1345 201106 1 1545 54606 327960 MARYLAND 24 2011 June Heat Z 7 HARFORD LWX 01-JUN-11 13:45:00 EST-5 01-JUN-11 15:45:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions eastern Maryland during the afternoon hours. Heat indices in excess of 100 degrees were estimated across Harford County. CSV -201106 1 1154 201106 1 1354 54606 327967 MARYLAND 24 2011 June Heat Z 14 ANNE ARUNDEL LWX 01-JUN-11 11:54:00 EST-5 01-JUN-11 13:54:00 0 0 0 0 ASOS \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions eastern Maryland during the afternoon hours. Heat indices in excess of 100 degrees were measured at the BWI Airport. CSV -201106 1 1200 201106 1 1500 54606 327968 MARYLAND 24 2011 June Heat Z 16 CHARLES LWX 01-JUN-11 12:00:00 EST-5 01-JUN-11 15:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N A clockwise flow around high pressure off the Mid-Atlantic Coast produced hot and humid conditions on the first. Heat indices up to 105 degrees were reported across portions eastern Maryland during the afternoon hours. Heat indices in excess of 100 degrees were estimated across Charles County. CSV -201106 8 1400 201106 8 1700 54608 327970 VIRGINIA 51 2011 June Heat Z 36 NELSON LWX 08-JUN-11 14:00:00 EST-5 08-JUN-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure remained over the region while surface high pressure was located off the East Coast. Subsidence associated with the upper-level high caused hot conditions during the 8th while a southerly flow around the surface high caused high humidity. The combination of hot and humid conditions caused heat indices to approach 105 degrees during the afternoon hours. Heat indices in excess of 100 degrees were estimated across Nelson County. CSV -201107 16 1100 201107 16 1100 53902 322905 GEORGIA 13 2011 July Heavy Rain C 185 LOWNDES TAE 16-JUL-11 11:00:00 EST-5 16-JUL-11 11:00:00 0 0 0 0 Mesonet \N \N \N \N 5 W KINDERLOU 5 W KINDERLOU 30.79 -83.45 30.79 -83.45 A weak upper level disturbance moved into the area from the north around an upper level ridge west of the area. The atmosphere was unstable enough for a few severe thunderstorms across south central Georgia, and copious amounts of moisture led to heavy rainfall amounts in some areas. Heavy rainfall of 4.48 was measured in a 3 hour period between 9 am and 12 pm EDT at the USGS Water Resources Division Gauge QUTG1. CSV -201107 2 1328 201107 2 1328 53907 322955 FLORIDA 12 2011 July Hail C 131 WALTON TAE 02-JUL-11 13:28:00 CST-6 02-JUL-11 13:28:00 0 0 0 0 Public 1 \N \N \N 1 SE NEW HOME 1 SE NEW HOME 30.59 -86.21 30.59 -86.21 A weak upper level shortwave rotating around an upper level ridge west of the area moved into the area. When combined with a moist and unstable summer air mass, this was enough for a few thunderstorms to develop across the Florida panhandle with isolated hail and damaging winds. The public called in a report to law enforcement of hail estimated at quarter size in the vicinity of Rock Hill Road and Eglin Territory Site C-6 Road. CSV -201107 2 1328 201107 2 1328 53907 322957 FLORIDA 12 2011 July Thunderstorm Wind C 131 WALTON TAE 02-JUL-11 13:28:00 CST-6 02-JUL-11 13:28:00 0 0 0 0 Public 52 EG \N \N \N 1 SE NEW HOME 1 SE NEW HOME 30.59 -86.21 30.59 -86.21 A weak upper level shortwave rotating around an upper level ridge west of the area moved into the area. When combined with a moist and unstable summer air mass, this was enough for a few thunderstorms to develop across the Florida panhandle with isolated hail and damaging winds. The public called in a report to law enforcement of winds estimated at 60 mph in the vicinity of Rock Hill Road and Eglin Territory Site C-6 Road. CSV -201107 15 1217 201107 15 1217 53914 322984 FLORIDA 12 2011 July Thunderstorm Wind C 79 MADISON TAE 15-JUL-11 12:17:00 EST-5 15-JUL-11 12:17:00 0 0 0 0 3.00K 0.00K Law Enforcement 50 EG \N \N \N 3 WSW MADISON 3 WSW MADISON 30.44 -83.45 30.44 -83.45 A weak upper level disturbance moved into the area from the north around an upper level ridge west of the area. The atmosphere was unstable enough for a severe thunderstorm across Madison county, and copious amounts of moisture led to heavy rainfall amounts in some areas. Power lines were blown down near County Road 360. The monetary damage figure provided is a rough estimate. CSV -201107 15 1227 201107 15 1227 53914 322990 FLORIDA 12 2011 July Thunderstorm Wind C 79 MADISON TAE 15-JUL-11 12:27:00 EST-5 15-JUL-11 12:27:00 0 0 0 0 2.00K 0.00K Emergency Manager 50 EG \N \N \N 4 WSW HANSON 4 WSW HANSON 30.52 -83.42 30.52 -83.42 A weak upper level disturbance moved into the area from the north around an upper level ridge west of the area. The atmosphere was unstable enough for a severe thunderstorm across Madison county, and copious amounts of moisture led to heavy rainfall amounts in some areas. Trees were blown down along County Road 53. The monetary damage figure provided is a rough estimate. CSV -201107 2 838 201107 2 838 53546 320475 ATLANTIC SOUTH 87 2011 July Marine Thunderstorm Wind Z 154 CP HATTERAS TO OCRACOKE INLET NC OUT 20NM MHX 02-JUL-11 08:38:00 EST-5 02-JUL-11 08:38:00 0 0 0 0 0.00K 0.00K Buoy 34 MG \N \N \N 23 ESE HATTERAS INLET 23 ESE HATTERAS INLET 35 -75.4 35 -75.4 An upper level disturbance moving south across the region produced isolated thunderstorms during the morning of July 2nd across eastern North Carolina. National Data Buoy Center site Diamond Shoals (buoy 41025) observed a 34 knot marine wind gust. CSV -201106 8 558 201106 8 558 54362 326408 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 345 STRAITS OF MACKINAC WITHIN 5NM OF MACKINAC BRIDGE INCLUDING MACKINAC ISLAND APX 08-JUN-11 05:58:00 EST-5 08-JUN-11 05:58:00 0 0 0 0 0.00K 0.00K C-MAN Station 44 MG \N \N \N 1 NE MACKINAW CITY 1 NE MACKINAW CITY 45.7867 -84.7226 45.7867 -84.7226 Numerous severe thunderstorms developed along and just ahead of a cold front. CSV -201106 8 650 201106 8 650 54364 326411 LAKE MICHIGAN 91 2011 June Marine Thunderstorm Wind Z 323 GRAND TRAVERSE BAY FROM GRAND TRAVERSE LIGHT TO NORWOOD MI APX 08-JUN-11 06:50:00 EST-5 08-JUN-11 06:50:00 0 0 0 0 0.00K 0.00K C-MAN Station 45 MG \N \N \N 2 ESE GRAND TRAVERSE LIGHT 2 ESE GRAND TRAVERSE LIGHT 45.1985 -85.5162 45.1985 -85.5162 Numerous severe thunderstorms developed along and ahead of a cold front. CSV -201106 8 830 201106 8 830 54364 326415 LAKE MICHIGAN 91 2011 June Marine Hail Z 342 NORWOOD MI TO 5NM W OF MACKINAC BRIDGE INC LITTLE TRAVERSE BAY APX 08-JUN-11 08:30:00 EST-5 08-JUN-11 08:30:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 NNW CHARLEVOIX 1 NNW CHARLEVOIX 45.3297 -85.2687 45.3297 -85.2687 Numerous severe thunderstorms developed along and ahead of a cold front. CSV -201106 24 1210 201106 24 1210 53696 321839 TENNESSEE 47 2011 June Hail C 31 COFFEE OHX 24-JUN-11 12:10:00 CST-6 24-JUN-11 12:10:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 0 NNE ARNOLDS AFS 0 NNE ARNOLDS AFS 35.3825 -86.0285 35.3825 -86.0285 Numerous showers and thunderstorms developed across southern portions of Middle Tennessee during the afternoon hours. Some large hail and wind damage occurred. Quarter size hail reported at main entrance to AEDC. CSV -201106 24 1210 201106 24 1210 53696 321840 TENNESSEE 47 2011 June Hail C 31 COFFEE OHX 24-JUN-11 12:10:00 CST-6 24-JUN-11 12:10:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 W ARNOLDS AFS 1 W ARNOLDS AFS 35.3786 -86.0496 35.3786 -86.0496 Numerous showers and thunderstorms developed across southern portions of Middle Tennessee during the afternoon hours. Some large hail and wind damage occurred. Quarter size hail reported at AEDC. CSV -201106 24 1221 201106 24 1221 53696 321841 TENNESSEE 47 2011 June Hail C 31 COFFEE OHX 24-JUN-11 12:21:00 CST-6 24-JUN-11 12:21:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N HILLSBORO 0 N HILLSBORO 35.42 -85.98 35.42 -85.98 Numerous showers and thunderstorms developed across southern portions of Middle Tennessee during the afternoon hours. Some large hail and wind damage occurred. CSV -201106 24 1255 201106 24 1255 53696 321842 TENNESSEE 47 2011 June Hail C 31 COFFEE OHX 24-JUN-11 12:55:00 CST-6 24-JUN-11 12:55:00 0 0 0 0 0.00K 0.00K Broadcast Media 0.88 \N \N \N 7 ESE MANCHESTER 7 ESE MANCHESTER 35.4412 -85.9651 35.4412 -85.9651 Numerous showers and thunderstorms developed across southern portions of Middle Tennessee during the afternoon hours. Some large hail and wind damage occurred. WKRN-TV relayed a report via Facebook of nickel size hail southeast of Manchester. CSV -201106 26 1204 201106 26 1204 53697 321845 TENNESSEE 47 2011 June Thunderstorm Wind C 99 LAWRENCE OHX 26-JUN-11 12:04:00 CST-6 26-JUN-11 12:04:00 0 0 0 0 1.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N LAWRENCEBURG 0 N LAWRENCEBURG 35.25 -87.33 35.25 -87.33 A Mesoscale Convective System moved across Middle Tennessee during the late morning and afternoon hours on June 26. A few reports of wind damage were received. The top of an eight inch diameter tree was blown off and fell onto and blocked a street in Lawrenceburg. The 911 Center measured a wind gust of 53 mph. CSV -201106 26 1225 201106 26 1225 53697 321846 TENNESSEE 47 2011 June Thunderstorm Wind C 99 LAWRENCE OHX 26-JUN-11 12:25:00 CST-6 26-JUN-11 12:25:00 0 0 0 0 2.00K 0.00K Emergency Manager 52 EG \N \N \N 1 ESE FIVE PTS 1 ESE FIVE PTS 35.0475 -87.3111 35.0475 -87.3111 A Mesoscale Convective System moved across Middle Tennessee during the late morning and afternoon hours on June 26. A few reports of wind damage were received. Power lines were blown down in Five Points on Evans Road. CSV -201106 5 1517 201106 5 1517 50987 301623 TEXAS 48 2011 June Thunderstorm Wind C 67 CASS SHV 05-JUN-11 15:17:00 CST-6 05-JUN-11 15:17:00 0 0 0 0 0.00K 0.00K Law Enforcement 56 EG \N \N \N 2 ESE CARTERVILLE 2 ESE CARTERVILLE 33.06 -94.39 33.06 -94.39 Another afternoon and evening of pulse type severe thunderstorms were felt across the region on June 5th. Just like the day before, these storms developed under a very unstable airmass and very hot temperatures. The storms had very large, elevated cores and once they decayed, produced strong downburst winds which resulted in some localized wind damage and large hail. These storms were also prolific lightning producers. Several trees were downed between Marietta and Linden, Texas including a 20 inch diameter pine tree blocking the roadway. CSV -201106 5 1534 201106 5 1534 50985 301624 ARKANSAS 5 2011 June Thunderstorm Wind C 91 MILLER SHV 05-JUN-11 15:34:00 CST-6 05-JUN-11 15:34:00 0 0 0 0 0.00K 0.00K Law Enforcement 54 EG \N \N \N 1 SW FOUKE 1 SW FOUKE 33.26 -93.89 33.26 -93.89 Another afternoon and evening of pulse type severe thunderstorms were felt across the region on June 5th. Just like the day before, these storms developed under a very unstable airmass and very hot temperatures. The storms had very large, elevated cores and once they decayed, produced strong downburst winds which resulted in some localized wind damage and large hail. These storms were also prolific lightning producers. Trees and powerlines were downed in the Fouke, Arkansas community. CSV -201106 5 1430 201106 5 1430 50985 301625 ARKANSAS 5 2011 June Thunderstorm Wind C 57 HEMPSTEAD SHV 05-JUN-11 14:30:00 CST-6 05-JUN-11 14:30:00 0 0 0 0 0.00K 0.00K Trained Spotter 53 EG \N \N \N 1 E HOPE 1 E HOPE 33.67 -93.59 33.67 -93.59 Another afternoon and evening of pulse type severe thunderstorms were felt across the region on June 5th. Just like the day before, these storms developed under a very unstable airmass and very hot temperatures. The storms had very large, elevated cores and once they decayed, produced strong downburst winds which resulted in some localized wind damage and large hail. These storms were also prolific lightning producers. Trees and large limbs were downed in the town of Hope, Arkansas. CSV -201103 29 0 201103 31 2359 48395 282695 TEXAS 48 2011 March Drought Z 255 CAMERON BRO 29-MAR-11 00:00:00 CST-6 31-MAR-11 23:59:00 0 0 0 0 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Continued rain free weather, above to much above normal temperatures, and plenty of wind as the sun angle increased with springtime increased the area of severe (D2) drought to reach into all of the Lower Rio Grande Valley by month's end. Severe (D2) Drought conditions stretched into most of Cameron County by the end of March, courtesy of above to much above normal temperatures in the 80s to near 90, persistent strong winds, and no rainfall. CSV -201106 1 0 201106 30 2359 53410 319677 TEXAS 48 2011 June Excessive Heat Z 166 SAN AUGUSTINE SHV 01-JUN-11 00:00:00 CST-6 30-JUN-11 23:59:00 0 0 0 0 0.00K 0.00K NWS Employee \N \N \N \N \N \N \N \N \N \N A large upper level ridge of high pressure has remained persistent across the Plains and Mississippi Valley this month, and has resulted in numerous days where temperatures have reached or exceeded 100 degrees. Overnight temperatures have also struggled to fall much below 80 degrees as well, contributing to the oppressively hot conditions.||Below is a list of the June monthly temperatures, their departures from normal, and how they rank as the warmest Junes on record.||City, June 2011 Average Temperature, Departure from Normal, Rank||Tyler Texas, 86.8, +7.0, 1st|Note: This surpasses the old record of 86.6 degrees set in 1901. Records were|recorded in Tyler since 1896.||Longview Texas, 85.9, +6.1, 4TH|Note: The warmest June on record was 86.3 degrees set in 1911. June 2011 was|the 4th warmest June of record with records dating back to 1902.||Lufkin Texas, 84.7, +5.1, 2ND|Note: The warmest June on record was 84.9 degrees set in 1998. This June|will surpass June 2010 which had an average monthly temperature of 84.1|degrees with records dating back to 1949. CSV -201102 28 200 201102 28 600 47593 277290 OREGON 41 2011 February High Wind Z 21 SOUTH CENTRAL OREGON COAST MFR 28-FEB-11 02:00:00 PST-8 28-FEB-11 06:00:00 0 0 0 0 0.00K 0.00K Official NWS Observations 50 EG \N \N \N \N \N \N \N \N \N An incoming cold front brought high winds to portions of southwest and south central Oregon. Winds at Cape Arago gusted to 59 mph twice...at 28/0200 and 28/0600 PST. |Observations at Cape Blanco normally are not used to verify warnings, but winds there gusted above 58 mph many times between 28/0010 and 28/0955 PST. The peak gust was 69 mph at 28/0610 PST. CSV -201102 27 2120 201102 28 1626 47593 277295 OREGON 41 2011 February High Wind Z 22 CURRY COUNTY COAST MFR 27-FEB-11 21:20:00 PST-8 28-FEB-11 16:26:00 0 0 0 0 0.00K 0.00K Department of Highways 62 MG \N \N \N \N \N \N \N \N \N An incoming cold front brought high winds to portions of southwest and south central Oregon. Winds at the ODOT station at Humbug Mountain gusted above 58 mph many times between 27/2120 and 28/1626 PST. The peak gust was 71 mph at 28/0542 PST. CSV -201102 28 38 201102 28 1538 47593 277301 OREGON 41 2011 February High Wind Z 31 CENTRAL & EASTERN LAKE COUNTY MFR 28-FEB-11 00:38:00 PST-8 28-FEB-11 15:38:00 0 0 0 0 0.00K 0.00K RAWS 60 MG \N \N \N \N \N \N \N \N \N An incoming cold front brought high winds to portions of southwest and south central Oregon. Wind gusts at the Summer Lake RAWS exceeded 58 mph almost continuously from 01/0038 through 01/1538 PST. The peak gust was 69 mph at 28/1038 PST. Winds at the Rock Creek RAWS gusted to 58 mph at 28/0227 and to 59 mph at 28/0327 PST. Winds at the Summit RAWS gusted to 59 mph at 28/1403, 28/1603 and 28/1803 PST. CSV -201102 15 800 201102 16 800 47182 278011 CALIFORNIA 6 2011 February Heavy Snow Z 84 NORTHEAST SISKIYOU AND NORTHWEST MODOC COUNTIES MFR 15-FEB-11 08:00:00 PST-8 16-FEB-11 08:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N A long lasting winter storm moved through northern California during this interval. The snow level started off above pass level with heavy rain totals reported at lower elevations. The snow level lowered to populated areas later in the event. The cooperative observer at Lava Beds National Monument reported 11.5 inches of snow in 24 hours ending at 16/0800 PST. CSV -201102 24 2200 201102 25 1000 47705 278019 OREGON 41 2011 February Frost/Freeze Z 22 CURRY COUNTY COAST MFR 24-FEB-11 22:00:00 PST-8 25-FEB-11 10:00:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Clearing skies and a cold air mass allowed freezing cold temperatures to develop along parts of the southern Oregon coast. Observed low temperatures ranged from 29 to 33 degrees. CSV -201102 26 200 201102 26 1000 47706 278021 OREGON 41 2011 February Frost/Freeze Z 21 SOUTH CENTRAL OREGON COAST MFR 26-FEB-11 02:00:00 PST-8 26-FEB-11 10:00:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Clearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range. Reported low temperatures ranged from 22 to 28 degrees. CSV -201102 26 200 201102 26 1000 47706 278023 OREGON 41 2011 February Frost/Freeze Z 22 CURRY COUNTY COAST MFR 26-FEB-11 02:00:00 PST-8 26-FEB-11 10:00:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Clearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range. Reported low temperatures ranged from 30 to 32 degrees. CSV -201102 26 200 201102 26 1000 47706 278024 OREGON 41 2011 February Frost/Freeze Z 23 CENTRAL DOUGLAS COUNTY MFR 26-FEB-11 02:00:00 PST-8 26-FEB-11 10:00:00 0 0 0 0 0.00K 0.00K Official NWS Observations \N \N \N \N \N \N \N \N \N \N Clearing skies and a very cold air mass made for unusually cold temperatures in southern Oregon west of the Cascade range. Reported low temperatures ranged from 14 to 24 degrees. CSV -201101 19 0 201101 19 2359 48705 284828 KANSAS 20 2011 January Winter Weather Z 4 NORTON GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201101 19 0 201101 19 2359 48705 284829 KANSAS 20 2011 January Winter Weather Z 2 RAWLINS GLD 19-JAN-11 00:00:00 CST-6 19-JAN-11 23:59:00 0 0 0 0 0.00K 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N A winter storm brought light snow, low visibility in fog and light freezing drizzle, all of which resulted in numerous traffic accidents throughout the area. Numerous slide off and rollover accidents due to light freezing drizzle were reported by local law enforcement. CSV -201102 3 2000 201102 4 800 46768 277053 TEXAS 48 2011 February Winter Storm Z 224 DE WITT EWX 03-FEB-11 20:00:00 CST-6 04-FEB-11 08:00:00 0 0 0 0 0.00K Law Enforcement \N \N \N \N \N \N \N \N \N \N An arctic cold front pushed across South Central Texas early on February 1. An upper level storm system moved east across Texas during the early morning hours of February 4. The lift associated with this low, along with the cold arctic air at the surface, produced freezing rain and snow during the overnight hours of February 3 and 4. An upper level storm approached the area the evening of February 3rd and produced light freezing drizzle which quickly formed a thin layer of ice on all exposed surfaces, making travel very dangerous. The greatest ice accumulation was one quarter of an inch in DeWitt County. The precipitation later turned mostly to light snow along with a few reports of sleet. The greatest snow amounts were from 1 to 2 inches, mainly across portions of Travis and Williamson Counties with generally less than one inch, across the Hill Country, portions of San Antonio, and areas east of I-35. There were over 500 traffic accidents reported in San Antonio and Austin during the overnight hours as well as others in most of the other counties. The icy roads forced all of the major highways in San Antonio to close during the night. For a time, I-35 was closed from San Marcos through San Antonio into Atascosa County, a stretch of nearly 100 miles. Many other highways were closed across the area including parts of I-10, US Hwy 90, US Hwy 77, and US Hwy 290. Most area schools were closed February 4th. CSV -201102 7 300 201102 7 1100 46733 271301 ARKANSAS 5 2011 February Winter Weather Z 25 JACKSON LZK 07-FEB-11 03:00:00 CST-6 07-FEB-11 11:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 100 201102 7 600 46733 271302 ARKANSAS 5 2011 February Winter Weather Z 38 YELL LZK 07-FEB-11 01:00:00 CST-6 07-FEB-11 06:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 400 201102 7 700 46733 271303 ARKANSAS 5 2011 February Winter Weather Z 39 PERRY LZK 07-FEB-11 04:00:00 CST-6 07-FEB-11 07:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 400 201102 7 700 46733 271304 ARKANSAS 5 2011 February Winter Weather Z 31 CONWAY LZK 07-FEB-11 04:00:00 CST-6 07-FEB-11 07:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 7 300 201102 7 800 46733 271305 ARKANSAS 5 2011 February Winter Weather Z 32 FAULKNER LZK 07-FEB-11 03:00:00 CST-6 07-FEB-11 08:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N Rain fell over Arkansas on the 6th. During the night of the 6th and the morning of the 7th, colder air spread across the state, changing the precipitation to snow. The snow exited the area around midday on the 7th. Most snowfall amounts were in the range of 1 to 2 inches, but there were spotty 3 inch amounts, especially from Greers Ferry Lake to Mountain View and Batesville. CSV -201102 18 1500 201102 19 1500 48188 281405 ALASKA 2 2011 February Winter Storm Z 22 SALISBURY SOUND TO CAPE FAIRWEATHER COASTAL AREA AJK 18-FEB-11 15:00:00 AKST-9 19-FEB-11 15:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N \N \N \N \N \N \N \N \N \N All of SE Alaska was in cold air with the arctic front offshore on 2/18. A moderate gale center moved into the western Gulf of Alaska, which was just enough to cause the front to move over the Panhandle for heavy snow on the night of the 18th into the afternoon of the 20th. Elfin Cove measured 10.5 inches of new snow for 24 hours ending at 1500 AKST on 2/19 and Pelican got 8.3 inches new. Most of this snow fell during the daytime on the 19th. Snow showers were heavy that afternoon with wind to 36 KT at Cape Spencer. CSV -201102 19 300 201102 20 300 48188 281581 ALASKA 2 2011 February Winter Storm Z 24 EASTERN BARANOF ISLAND AND SOUTHERN ADMIRALTY ISLAND AJK 19-FEB-11 03:00:00 AKST-9 20-FEB-11 03:00:00 0 0 0 0 0.00K 0.00K ASOS \N \N \N \N \N \N \N \N \N \N All of SE Alaska was in cold air with the arctic front offshore on 2/18. A moderate gale center moved into the western Gulf of Alaska, which was just enough to cause the front to move over the Panhandle for heavy snow on the night of the 18th into the afternoon of the 20th. Angoon had wet snow through the morning of 2/19, but higher elevations had significant snowfall. Hidden Falls on the back side of Baranof Island measured 4 inches new snow on the afternoon of 2/19 and another inch on 2/20. No other observations were available. CSV -201102 9 1300 201102 9 1310 48362 282470 TEXAS 48 2011 February Strong Wind Z 257 COASTAL CAMERON BRO 09-FEB-11 13:00:00 CST-6 09-FEB-11 13:10:00 0 0 0 0 1.00K 0.00K ASOS 42 MG \N \N \N \N \N \N \N \N \N Another in a series of modified arctic fronts surged through Deep South Texas during the morning of February 9th, bringing sharply colder temperatures and frequent wind gusts between 40 and 48 mph. Temperatures fell some 15 to 25 degrees in one hour after the front passed, turning spring back into winter and setting the stage for a couple more freezes on the 10th and 11th. ||The gusty winds produced minor damage in Port Isabel during the early afternoon of the 9th. A power line was blown down in Port Isabel at around 1 PM CST February 9th, courtesy of gusty northwest winds in excess of 40 mph behind a strong cold front. At the Bayview/Cameron County Airport, a peak gust of 48 mph was recorded at around the same time. Several residents lost electricity for a short while due to the power outage. CSV -201101 25 2000 201101 26 1300 48224 281633 CALIFORNIA 6 2011 January Dense Fog Z 91 SW S.J. VALLEY HNX 25-JAN-11 20:00:00 PST-8 26-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N A mid-level atmospheric disturbance that tracked across central California during the late afternoon and early evening of January 17th squeezed some drizzle out of the stratus, but the layer remained intact. The stratus persisted through the 18th before an upper-level trough brought some clearing to the west side of the San Joaquin Valley during the morning of January 19th. An offshore flow developed over California on the 20th, drying the airmass over the San Joaquin Valley and breaking up the stratus.||Although the fog and stratus kept central and southern San Joaquin Valley temperatures near or below normal, mountain and desert locations once again experienced above normal temperatures. Once the stratus broke up, central and south Valley temperatures also warmed to above normal for a few days before sufficient moisture had evaporated and resaturated the lowest levels of the atmosphere. While dense fog had been a nightly occurrence since January 21st, by the 24th, the fog was lingering well into the late morning with only partial afternoon clearing. Locations experienced near zero visibility at times during most of late January. This persistent dense fog continued for the next several days, affecting air travel into and out of the San Joaquin Valley and keeping high temperatures well below normal. CSV -201101 10 30 201101 10 700 46524 269677 TENNESSEE 47 2011 January Heavy Snow Z 100 BRADLEY MRX 10-JAN-11 00:30:00 EST-5 10-JAN-11 07:00:00 0 0 0 0 Law Enforcement \N \N \N \N \N \N \N \N \N \N A low pressure system developed over the Western Gulf of Mexico coast near Louisiana and moved east along the Gulf coast on its way into Northern Florida. An inverted trough of lower pressure extended north into the Tennessee Valley and Southern Appalachians enhancing lift of the moist air mass in place across the Southeastern United States. Significant snowfall accumulation occurred across Southeast Tennessee and Southwest North Carolina and the Smoky Mountains. Snowfall accumulated to a depth of 8.5 inches at Cleveland. CSV -201101 25 2000 201101 26 1300 48224 281634 CALIFORNIA 6 2011 January Dense Fog Z 92 SE S.J. VALLEY HNX 25-JAN-11 20:00:00 PST-8 26-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N A mid-level atmospheric disturbance that tracked across central California during the late afternoon and early evening of January 17th squeezed some drizzle out of the stratus, but the layer remained intact. The stratus persisted through the 18th before an upper-level trough brought some clearing to the west side of the San Joaquin Valley during the morning of January 19th. An offshore flow developed over California on the 20th, drying the airmass over the San Joaquin Valley and breaking up the stratus.||Although the fog and stratus kept central and southern San Joaquin Valley temperatures near or below normal, mountain and desert locations once again experienced above normal temperatures. Once the stratus broke up, central and south Valley temperatures also warmed to above normal for a few days before sufficient moisture had evaporated and resaturated the lowest levels of the atmosphere. While dense fog had been a nightly occurrence since January 21st, by the 24th, the fog was lingering well into the late morning with only partial afternoon clearing. Locations experienced near zero visibility at times during most of late January. This persistent dense fog continued for the next several days, affecting air travel into and out of the San Joaquin Valley and keeping high temperatures well below normal. CSV -201101 26 1700 201101 27 1300 48225 281638 CALIFORNIA 6 2011 January Dense Fog Z 92 SE S.J. VALLEY HNX 26-JAN-11 17:00:00 PST-8 27-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N Very persistent dense fog conditions continued to impact the San Joaquin Valley and adjacent foothills through late January. CSV -201101 27 2000 201101 28 1300 48225 281639 CALIFORNIA 6 2011 January Dense Fog Z 89 W CENTRAL S.J. VALLEY HNX 27-JAN-11 20:00:00 PST-8 28-JAN-11 13:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N Very persistent dense fog conditions continued to impact the San Joaquin Valley and adjacent foothills through late January. CSV -201101 9 1735 201101 9 1735 46437 269176 GULF OF MEXICO 85 2011 January Marine High Wind Z 572 COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA FROM 20 TO 60 NM LIX 09-JAN-11 17:35:00 CST-6 09-JAN-11 17:35:00 0 0 0 0 0.00K 0.00K AWOS 64 MG \N \N \N 0 N MISSISSIPPI CANYON OIL PLATFORM 311A (KMDJ) 0 N MISSISSIPPI CANYON OIL PLATFORM 311A (KMDJ) 28.64 -89.79 28.64 -89.79 Strengthening low pressure moved eastward just off the Louisiana coast. The pressure gradient between the low and high pressure off the Atlantic Coast produced numerous reports of high winds. KMDJ AWOS observation at 2335z 25030G64KT. Observation site is an elevated platform. CSV -201101 9 1455 201101 9 1455 46437 269177 GULF OF MEXICO 85 2011 January Marine High Wind Z 570 COASTAL WATERS FROM PORT FOURCHON LOUISIANA TO LOWER ATCHAFALAYA RIVER LOUISIANA FROM 20 TO 60 NM LIX 09-JAN-11 14:55:00 CST-6 09-JAN-11 14:55:00 0 0 0 0 0.00K 0.00K AWOS 52 MG \N \N \N 0 N SHIP SHOAL OIL PLATFORM (KSPR) 0 N SHIP SHOAL OIL PLATFORM (KSPR) 28.6 -91.2 28.6 -91.2 Strengthening low pressure moved eastward just off the Louisiana coast. The pressure gradient between the low and high pressure off the Atlantic Coast produced numerous reports of high winds. Observation is from an elevated platform. CSV -201101 9 1555 201101 9 1555 46437 269180 GULF OF MEXICO 85 2011 January Marine High Wind Z 572 COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA FROM 20 TO 60 NM LIX 09-JAN-11 15:55:00 CST-6 09-JAN-11 15:55:00 0 0 0 0 0.00K 0.00K AWOS 51 MG \N \N \N 0 N INNOVATOR AWOS (KMYT) 0 N INNOVATOR AWOS (KMYT) 28.21 -89.61 28.21 -89.61 Strengthening low pressure moved eastward just off the Louisiana coast. The pressure gradient between the low and high pressure off the Atlantic Coast produced numerous reports of high winds. Observation is from an elevated platform. CSV -201101 9 1650 201101 9 1650 46437 269182 GULF OF MEXICO 85 2011 January Marine High Wind Z 552 COASTAL WATERS FROM SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON LOUISIANA OUT 20 NM LIX 09-JAN-11 16:50:00 CST-6 09-JAN-11 16:50:00 0 0 0 0 0.00K 0.00K C-MAN Station 49 MG \N \N \N 0 N BURLWOOD C-MAN STATION (BURL1) 0 N BURLWOOD C-MAN STATION (BURL1) 28.91 -89.43 28.91 -89.43 Strengthening low pressure moved eastward just off the Louisiana coast. The pressure gradient between the low and high pressure off the Atlantic Coast produced numerous reports of high winds. CSV -201101 20 600 201101 21 0 48031 280449 OHIO 39 2011 January Winter Weather Z 55 FRANKLIN ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. A spotter 4 miles north of Grove City measured 6 inches of snow, while one in Columbus measured 4.8 inches. Spotters in and 3 miles south of Worthington measured 4.6 and 4.5 inches of snow, respectively. The KCMH airport measured 4.2 inches. CSV -201101 20 600 201101 21 0 48031 280451 OHIO 39 2011 January Winter Weather Z 34 MERCER ILN 20-JAN-11 06:00:00 EST-5 21-JAN-11 00:00:00 0 0 0 0 Department of Highways \N \N \N \N \N \N \N \N \N \N A low pressure system moved across the Tennessee Valley during the day of Thursday, January 20th. Widespread snow developed across the region in the morning and continued through the afternoon, tapering off in the evening. Snow became heavy at times during the afternoon. The ODOT county garage 3 miles west of Celina measured 3 inches of snow. CSV -201101 10 100 201101 10 530 46524 269675 TENNESSEE 47 2011 January Heavy Snow Z 71 NORTHWEST BLOUNT MRX 10-JAN-11 01:00:00 EST-5 10-JAN-11 05:30:00 0 0 0 0 Public \N \N \N \N \N \N \N \N \N \N A low pressure system developed over the Western Gulf of Mexico coast near Louisiana and moved east along the Gulf coast on its way into Northern Florida. An inverted trough of lower pressure extended north into the Tennessee Valley and Southern Appalachians enhancing lift of the moist air mass in place across the Southeastern United States. Significant snowfall accumulation occurred across Southeast Tennessee and Southwest North Carolina and the Smoky Mountains. Snowfall accumulated to a depth of 4.5 inches at Maryville. CSV -201101 10 30 201101 10 540 46524 269676 TENNESSEE 47 2011 January Heavy Snow Z 100 BRADLEY MRX 10-JAN-11 00:30:00 EST-5 10-JAN-11 05:40:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system developed over the Western Gulf of Mexico coast near Louisiana and moved east along the Gulf coast on its way into Northern Florida. An inverted trough of lower pressure extended north into the Tennessee Valley and Southern Appalachians enhancing lift of the moist air mass in place across the Southeastern United States. Significant snowfall accumulation occurred across Southeast Tennessee and Southwest North Carolina and the Smoky Mountains. Snowfall accumulated to a depth of 6 inches at Charleston. CSV -201105 23 1855 201105 23 1855 51656 306991 MICHIGAN 26 2011 May Hail C 115 MONROE DTX 23-MAY-11 18:55:00 EST-5 23-MAY-11 18:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 NW AZALIA 1 NW AZALIA 42.03 -83.68 42.03 -83.68 Numerous severe thunderstorms impacted areas south of M-59. CSV -201101 10 30 201101 10 740 46524 269678 TENNESSEE 47 2011 January Heavy Snow Z 100 BRADLEY MRX 10-JAN-11 00:30:00 EST-5 10-JAN-11 07:40:00 0 0 0 0 Trained Spotter \N \N \N \N \N \N \N \N \N \N A low pressure system developed over the Western Gulf of Mexico coast near Louisiana and moved east along the Gulf coast on its way into Northern Florida. An inverted trough of lower pressure extended north into the Tennessee Valley and Southern Appalachians enhancing lift of the moist air mass in place across the Southeastern United States. Significant snowfall accumulation occurred across Southeast Tennessee and Southwest North Carolina and the Smoky Mountains. Snowfall accumulated to a depth of 10 inches five miles north of Cleveland. CSV -201101 9 1510 201101 9 1510 46439 269184 LOUISIANA 22 2011 January Strong Wind Z 61 UPPER JEFFERSON LIX 09-JAN-11 15:10:00 CST-6 09-JAN-11 15:10:00 0 0 0 0 1.00K 0.00K Trained Spotter 47 MG \N \N \N \N \N \N \N \N \N Strengthening low pressure moved eastward just off the Louisiana coast. The pressure gradient between the low and high pressure off the Atlantic coast produced high winds in the New Orleans area. A satellite dish was blown off the roof of Concourse C at New Orleans International Airport. CSV -201101 18 1756 201101 18 1756 46440 269185 GULF OF MEXICO 85 2011 January Marine Thunderstorm Wind Z 530 LAKE PONCHARTRAIN AND LAKE MAUREPAS LIX 18-JAN-11 17:56:00 CST-6 18-JAN-11 17:56:00 0 0 0 0 0.00K 0.00K ASOS 45 MG \N \N \N 0 N LKFRNT ARPT NEW 0 N LKFRNT ARPT NEW 30.05 -90.03 30.05 -90.03 A thunderstorm ahead of a cold front produced strong winds over Lake Pontchartrain. CSV -201108 18 1640 201108 18 1640 57162 342413 MARYLAND 24 2011 August Hail C 25 HARFORD LWX 18-AUG-11 16:40:00 EST-5 18-AUG-11 16:40:00 0 0 0 0 Public 1 \N \N \N 1 SSW CALVARY 1 SSW CALVARY 39.5229 -76.2545 39.5229 -76.2545 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported. CSV -201108 18 1636 201108 18 1636 57162 342414 MARYLAND 24 2011 August Thunderstorm Wind C 25 HARFORD LWX 18-AUG-11 16:36:00 EST-5 18-AUG-11 16:36:00 0 0 0 0 1.00K State Official 56 EG \N \N \N 2 SW CALVARY 2 SW CALVARY 39.5075 -76.2699 39.5075 -76.2699 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. A tree was down along MD-543 and Calvary Road. CSV -201108 18 1719 201108 18 1719 57162 342415 MARYLAND 24 2011 August Hail C 31 MONTGOMERY LWX 18-AUG-11 17:19:00 EST-5 18-AUG-11 17:19:00 0 0 0 0 Trained Spotter 1 \N \N \N 0 WNW KEN GAR 0 WNW KEN GAR 39.0516 -77.0748 39.0516 -77.0748 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported at the intersection of Connecticut Avenue and Viers Mill Road. CSV -201108 18 1701 201108 18 1701 57162 342416 MARYLAND 24 2011 August Hail C 25 HARFORD LWX 18-AUG-11 17:01:00 EST-5 18-AUG-11 17:01:00 0 0 0 0 Public 1 \N \N \N 2 NW HAVRE DE GRACE 2 NW HAVRE DE GRACE 39.5689 -76.1292 39.5689 -76.1292 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Hail up to quarters in size was reported. CSV -201108 18 1733 201108 18 1733 57162 342417 MARYLAND 24 2011 August Hail C 31 MONTGOMERY LWX 18-AUG-11 17:33:00 EST-5 18-AUG-11 17:33:00 0 0 0 0 Trained Spotter 1.75 \N \N \N 1 S FAIRLAND 1 S FAIRLAND 39.0596 -76.9539 39.0596 -76.9539 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Golf ball sized hail was reported in Calverton. CSV -201108 18 1724 201108 18 1724 57162 342418 MARYLAND 24 2011 August Hail C 31 MONTGOMERY LWX 18-AUG-11 17:24:00 EST-5 18-AUG-11 17:24:00 0 0 0 0 Public 1 \N \N \N 1 ENE GLENMONT 1 ENE GLENMONT 39.0718 -77.0605 39.0718 -77.0605 A southerly flow around high pressure off the east coast produced hot and humid conditions. The hot and humid conditions combined with colder air aloft associated with an upper-level trough to produce moderate amounts of instability. Some thunderstorms that developed produced damaging wind gusts and large hail. Quarter sized hail was reported near Glenmont. CSV -201107 21 1400 201107 21 1700 56291 337529 VIRGINIA 51 2011 July Heat Z 42 LOUDOUN LWX 21-JUL-11 14:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 ASOS \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were reported at Dulles International Airport. CSV -201108 14 200 201108 14 500 56923 341033 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 14-AUG-11 02:00:00 EST-5 14-AUG-11 05:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N Heavy Rain \N \N \N 1 E ROCKFISH 0 ESE ROCKFISH 37.8 -78.75 37.7984 -78.7613 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Rockfish River was out of its banks and flooding yards. CSV -201108 14 1850 201108 14 2100 56923 341034 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 14-AUG-11 18:50:00 EST-5 14-AUG-11 21:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 0 N MASSIES MILL 0 S MASSIES MILL 37.78 -79 37.7765 -78.9994 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Riverside Loop was closed due to flash flooding. CSV -201105 23 1904 201105 23 1904 51656 306992 MICHIGAN 26 2011 May Hail C 115 MONROE DTX 23-MAY-11 19:04:00 EST-5 23-MAY-11 19:04:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 4 E OAKVILLE 4 E OAKVILLE 42.07 -83.51 42.07 -83.51 Numerous severe thunderstorms impacted areas south of M-59. CSV -201108 14 1850 201108 14 2100 56923 341037 VIRGINIA 51 2011 August Flash Flood C 125 NELSON LWX 14-AUG-11 18:50:00 EST-5 14-AUG-11 21:00:00 0 0 0 0 0.00K 0.00K Department of Highways \N Heavy Rain \N \N \N 5 ESE GREENFIELD 5 ESE GREENFIELD 37.91 -78.76 37.9138 -78.7684 Deep layer southerly flow advected a moist, tropical airmass into the Mid-Atlantic. As low pressure approached from the west, periods of heavy rain and thunderstorms moved across the central Virginia Foothills. As grounds became saturated, flood and flash flooding resulted in some areas. A spotter in Albemarle County measured 3.15 inches of rain during this period. Taylors Creek Road was closed due to flash flooding on Taylors Creek. CSV -201108 18 1610 201108 18 1800 56952 341148 MARYLAND 24 2011 August Flash Flood C 3 ANNE ARUNDEL LWX 18-AUG-11 16:10:00 EST-5 18-AUG-11 18:00:00 0 0 0 0 0.00K 0.00K Fire Department/Rescue \N Heavy Rain \N \N \N 0 ESE DELMONT 1 ENE DELMONT 39.129 -76.6666 39.1345 -76.6588 Isolated thunderstorms developed across Maryland when an upper level disturbance tracked across a moist and unstable atmosphere. High rainfall rates over Anne Arundel County cased an isolated flash flood. Intersection of Steven Road and Quarterfield Road was flooded. CSV -201108 19 1852 201108 19 1945 57051 341877 VIRGINIA 51 2011 August Flash Flood C 59 FAIRFAX LWX 19-AUG-11 18:52:00 EST-5 19-AUG-11 19:45:00 0 0 0 0 0.00K 0.00K State Official \N Heavy Rain \N \N \N 1 W MERRIFIELD 1 WSW MERRIFIELD 38.87 -77.24 38.8663 -77.2385 An upper-level disturbance combined with a moist, unstable airmass to induce scattered thunderstorms during the afternoon and evening hours. Very heavy rainfall rates with some of this activity in the Washington, DC, suburbs caused a few flash floods. A vehicle was stuck in high water near the intersection of Route 50 and Prosperity Avenue. A swift water rescue was performed. CSV -201107 19 1906 201107 19 1906 55832 335087 MARYLAND 24 2011 July Thunderstorm Wind C 37 ST. MARY'S LWX 19-JUL-11 19:06:00 EST-5 19-JUL-11 19:06:00 0 0 0 0 0.50K Trained Spotter 50 EG \N \N \N 2 SSE SOTTERLEY 2 SSE SOTTERLEY 38.351 -76.506 38.351 -76.506 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. Numerous tree branches were down. CSV -201107 19 1906 201107 19 1906 55832 335088 MARYLAND 24 2011 July Thunderstorm Wind C 37 ST. MARY'S LWX 19-JUL-11 19:06:00 EST-5 19-JUL-11 19:06:00 0 0 0 0 5.00K Trained Spotter 61 EG \N \N \N 2 SSE SOTTERLEY 2 SSE SOTTERLEY 38.3522 -76.5218 38.3522 -76.5218 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. Tops of pine trees were sheared off about ten to fifteen feet above ground. A tree that was twenty inches in diameter was twisted. CSV -201107 19 1910 201107 19 1910 55832 335089 MARYLAND 24 2011 July Thunderstorm Wind C 37 ST. MARY'S LWX 19-JUL-11 19:10:00 EST-5 19-JUL-11 19:10:00 0 0 0 0 3.00K Trained Spotter 61 EG \N \N \N 0 NNE LNRDTWN ST MARYS ARP 0 NNE LNRDTWN ST MARYS ARP 38.3235 -76.5475 38.3235 -76.5475 A cold front passed through the area on the 19th. A warm and moist air mass ahead of the boundary caused moderate amounts of instability to develop. The instability combined with forcing from the front to trigger showers and thunderstorms. Some thunderstorms produced damaging wind gusts. Several trees were down near the intersection of Clarkes Landing Road and MD Route 235. CSV -201107 21 1500 201107 21 1800 56291 337531 VIRGINIA 51 2011 July Heat Z 37 ALBEMARLE LWX 21-JUL-11 15:00:00 EST-5 21-JUL-11 18:00:00 0 0 0 0 ASOS \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were reported at the Charlottesville Airport. CSV -201107 21 1400 201107 21 1700 56291 337542 VIRGINIA 51 2011 July Heat Z 501 NORTHERN FAUQUIER LWX 21-JUL-11 14:00:00 EST-5 21-JUL-11 17:00:00 0 0 0 0 Unknown \N \N \N \N \N \N \N \N \N \N Upper-level high pressure provided enough subsidence to cause hot conditions on the 21st. Surface high pressure over the Atlantic caused moist air to move into the region from the south. The combination of the heat and humidity caused heat indices over 110 degrees in some locations. Heat indices in excess of 105 degrees were estimated based on observations nearby. CSV -201107 13 1405 201107 13 1600 56301 337613 VIRGINIA 51 2011 July Flash Flood C 59 FAIRFAX LWX 13-JUL-11 14:05:00 EST-5 13-JUL-11 16:00:00 0 0 0 0 0.00K 0.00K COOP Observer \N Heavy Rain \N \N \N 1 E TYSONS CORNER 1 ESE TYSONS CORNER 38.92 -77.22 38.9166 -77.2155 Showers and thunderstorms developed along and ahead of a cold front moving through the Washington metropolitan area. Heavy rainfall rates prompted flash flooding in parts of Fairfax County. Rainfall amounts of up to 3.23 inches were reported near Vienna. Route 123 was closed under the Interstate 495 overpass due to flash flooding. A nearby rain gage measured 1.28. CSV -201104 14 1904 201104 14 1910 48744 305899 OKLAHOMA 40 2011 April Tornado C 5 ATOKA OUN 14-APR-11 19:04:00 CST-6 14-APR-11 19:10:00 0 0 0 0 0.00K 0.00K Storm Chaser \N EF0 6 125 TSA OK 127 PUSHMATAHA 6 SSW REDDEN 6 SE REDDEN 34.4298 -95.8903 34.4467 -95.7787 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. A tornado was observed by a storm chaser that developed south-southwest of Redden and moved east-northeast into Pushmataha County (see Storm Data for eastern Oklahoma for the Pushmataha County portion of this tornado.) This tornado produced no known damage. CSV -201105 23 1915 201105 23 1915 51656 306993 MICHIGAN 26 2011 May Hail C 163 WAYNE DTX 23-MAY-11 19:15:00 EST-5 23-MAY-11 19:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 2 E WALTZ 2 E WALTZ 42.1 -83.35 42.1 -83.35 Numerous severe thunderstorms impacted areas south of M-59. CSV -201104 15 1330 201104 15 1330 51893 309092 TEXAS 48 2011 April High Wind Z 86 WICHITA OUN 15-APR-11 13:30:00 CST-6 15-APR-11 13:30:00 0 0 0 0 0.00K 0.00K ASOS 55 MG \N \N \N \N \N \N \N \N \N Strong, gusty winds developed during the afternoon hours over northern Texas on the 15th, as a strong low pressure moved into the southeast United States and a strong high pressure moved south through the Plains. No precipitation occurred with the gusts, with a couple of wind gusts exceeding 60 mph. Sheppard Air Force Base measured a non-thunderstorm wind gust of 63 mph. CSV -201104 1 0 201104 30 2359 52211 311281 OKLAHOMA 40 2011 April Drought Z 15 DEWEY OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 Other Federal Agency \N \N \N \N \N \N \N \N \N \N Although two storm systems moved through the region, bringing with it beneficial rainfall, D2 to D3 drought steadily moved north and west through Oklahoma. D4 drought also developed over a few counties of southwest Oklahoma. This all stems from the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Dewey county remained in D2 drought status through much of the month, but increased to D3 status by 4/26. CSV -201106 13 1831 201106 13 1835 51251 304069 NEBRASKA 31 2011 June Hail C 33 CHEYENNE CYS 13-JUN-11 18:31:00 MST-7 13-JUN-11 18:35:00 0 0 0 0 0.00K 0.00K Public 1.25 \N \N \N 1 S COLTON 1 S COLTON 41.1355 -102.87 41.1355 -102.87 Strong storms developed across the panhandle and produced large hail. CSV -201104 14 1530 201104 14 1530 48744 285055 OKLAHOMA 40 2011 April Hail C 125 POTTAWATOMIE OUN 14-APR-11 15:30:00 CST-6 14-APR-11 15:30:00 0 0 0 0 0.00K 0.00K COOP Observer 1 \N \N \N 0 N SHAWNEE 0 N SHAWNEE 35.33 -96.92 35.33 -96.92 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201104 22 1746 201104 22 1746 49323 305042 OKLAHOMA 40 2011 April Hail C 49 GARVIN OUN 22-APR-11 17:46:00 CST-6 22-APR-11 17:46:00 0 0 0 0 0.00K 0.00K NWS Employee 1 \N \N \N 8 E PAOLI 8 E PAOLI 34.83 -97.1189 34.83 -97.1189 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. CSV -201105 29 1945 201105 29 1945 53131 317902 PENNSYLVANIA 42 2011 May Thunderstorm Wind C 85 MERCER PBZ 29-MAY-11 19:45:00 EST-5 29-MAY-11 19:45:00 0 0 0 0 0.00K 0.00K Public 50 EG \N \N \N 1 E JAMESTOWN 1 E JAMESTOWN 41.48 -80.44 41.48 -80.44 A warm front slowly moving north through Pennsylvania triggered a few severe thunderstorms over northwestern Pennsylvania. The storms brought trees down, mainly in Mercer county. The public reports one tree down. CSV -201105 29 1947 201105 29 1947 53131 317903 PENNSYLVANIA 42 2011 May Thunderstorm Wind C 85 MERCER PBZ 29-MAY-11 19:47:00 EST-5 29-MAY-11 19:47:00 0 0 0 0 0.50K 0.00K Public 50 EG \N \N \N 2 N GREENVILLE MUNI ARPT 2 N GREENVILLE MUNI ARPT 41.48 -80.38 41.48 -80.38 A warm front slowly moving north through Pennsylvania triggered a few severe thunderstorms over northwestern Pennsylvania. The storms brought trees down, mainly in Mercer county. The public reports one tree down. CSV -201105 13 1659 201105 13 1659 51646 306912 MICHIGAN 26 2011 May Hail C 111 MIDLAND DTX 13-MAY-11 16:59:00 EST-5 13-MAY-11 16:59:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 2 ESE PORTER 2 ESE PORTER 43.51 -84.43 43.51 -84.43 A surface trough dropping south through Saginaw Bay interacted with thunderstorms coming up from the south, producing heavy rainfall around the I-69 corridor, specifically in Genessee county where flash flooding occured. CSV -201105 13 1955 201105 13 1955 51646 306913 MICHIGAN 26 2011 May Hail C 49 GENESEE DTX 13-MAY-11 19:55:00 EST-5 13-MAY-11 19:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 SW DUFFIELD 1 SW DUFFIELD 42.91 -83.91 42.91 -83.91 A surface trough dropping south through Saginaw Bay interacted with thunderstorms coming up from the south, producing heavy rainfall around the I-69 corridor, specifically in Genessee county where flash flooding occured. CSV -201105 13 1955 201105 13 1955 51646 306914 MICHIGAN 26 2011 May Hail C 155 SHIAWASSEE DTX 13-MAY-11 19:55:00 EST-5 13-MAY-11 19:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 2 N BYRON 2 N BYRON 42.85 -83.95 42.85 -83.95 A surface trough dropping south through Saginaw Bay interacted with thunderstorms coming up from the south, producing heavy rainfall around the I-69 corridor, specifically in Genessee county where flash flooding occured. CSV -201105 13 2014 201105 13 2014 51646 306915 MICHIGAN 26 2011 May Hail C 49 GENESEE DTX 13-MAY-11 20:14:00 EST-5 13-MAY-11 20:14:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 W GAINES 1 W GAINES 42.87 -83.91 42.87 -83.91 A surface trough dropping south through Saginaw Bay interacted with thunderstorms coming up from the south, producing heavy rainfall around the I-69 corridor, specifically in Genessee county where flash flooding occured. CSV -201105 23 1719 201105 23 1719 51656 306989 MICHIGAN 26 2011 May Hail C 91 LENAWEE DTX 23-MAY-11 17:19:00 EST-5 23-MAY-11 17:19:00 0 0 0 0 0.00K 0.00K Public 1.5 \N \N \N 3 NW BIRDSALL 3 NW BIRDSALL 41.98 -84.04 41.98 -84.04 Numerous severe thunderstorms impacted areas south of M-59. CSV -201103 9 620 201103 9 620 48075 280715 MISSISSIPPI 28 2011 March Thunderstorm Wind C 109 PEARL RIVER LIX 09-MAR-11 06:20:00 CST-6 09-MAR-11 06:20:00 0 0 0 0 0.00K 0.00K Public 61 EG \N \N \N 6 NW PICAYUNE 6 NW PICAYUNE 30.5914 -89.7513 30.5914 -89.7513 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Numerous large tree branches were reported down. CSV -201103 9 720 201103 9 720 48075 280726 MISSISSIPPI 28 2011 March Thunderstorm Wind C 45 HANCOCK LIX 09-MAR-11 07:20:00 CST-6 09-MAR-11 07:20:00 0 0 0 0 10.00K 0.00K NWS Storm Survey 61 EG \N \N \N 0 N KILN 0 N KILN 30.42 -89.43 30.42 -89.43 Thunderstorms in advance of a strong cold front produced numerous reports of flooding and severe weather on the afternoon of the 8th through the morning of the 9th. Small trees were blown down. The soffit was ripped off of a bank drive through. A metal roof was pulled off of one home. Survey indicated damage was caused by straight line winds. CSV -201103 29 1510 201103 29 1510 48328 282211 LOUISIANA 22 2011 March Hail C 47 IBERVILLE LIX 29-MAR-11 15:10:00 CST-6 29-MAR-11 15:10:00 0 0 0 0 0.00K 0.00K Broadcast Media 1 \N \N \N 0 N BAYOU SORREL 0 N BAYOU SORREL 30.17 -91.33 30.17 -91.33 Upper level disturbances moving over a very warm and unstable airmass produced numerous reports of severe weather, as well as isolated flash flooding. Additional reports of penny to quarter size hail were received from Bayou Sorrel. CSV -201103 29 1510 201103 29 1510 48328 282212 LOUISIANA 22 2011 March Hail C 47 IBERVILLE LIX 29-MAR-11 15:10:00 CST-6 29-MAR-11 15:10:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.25 \N \N \N 0 N BAYOU SORREL 0 N BAYOU SORREL 30.17 -91.33 30.17 -91.33 Upper level disturbances moving over a very warm and unstable airmass produced numerous reports of severe weather, as well as isolated flash flooding. CSV -201106 18 1245 201106 18 1245 53163 318011 VERMONT 50 2011 June Hail C 7 CHITTENDEN BTV 18-JUN-11 12:45:00 EST-5 18-JUN-11 12:45:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 1 NE NORTH UNDERHILL 1 NE NORTH UNDERHILL 44.59 -72.93 44.59 -72.93 A cold front along with an cold upper level disturbance moved across a moderately unstable air mass across Vermont during the afternoon of June 18th. Thunderstorm activity was scattered, but a few of the stronger storms produced large hail greater than an inch diameter, including one report of near golf ball size near Enosburg in Franklin county. Nickel size hail reported. CSV -201106 18 1250 201106 18 1250 53163 318012 VERMONT 50 2011 June Hail C 11 FRANKLIN BTV 18-JUN-11 12:50:00 EST-5 18-JUN-11 12:50:00 0 0 0 0 0.00K 0.00K Public 1.25 \N \N \N 1 SW SOUTH RICHFORD 1 SW SOUTH RICHFORD 44.9181 -72.6711 44.9181 -72.6711 A cold front along with an cold upper level disturbance moved across a moderately unstable air mass across Vermont during the afternoon of June 18th. Thunderstorm activity was scattered, but a few of the stronger storms produced large hail greater than an inch diameter, including one report of near golf ball size near Enosburg in Franklin county. Half dollar size hail reported along VT Route 188 between Enosburg and Montgomery. CSV -201106 18 1250 201106 18 1250 53163 318013 VERMONT 50 2011 June Hail C 11 FRANKLIN BTV 18-JUN-11 12:50:00 EST-5 18-JUN-11 12:50:00 0 0 0 0 0.00K 0.00K Public 1.75 \N \N \N 3 E ENOSBURG CENTER 3 E ENOSBURG CENTER 44.88 -72.71 44.88 -72.71 A cold front along with an cold upper level disturbance moved across a moderately unstable air mass across Vermont during the afternoon of June 18th. Thunderstorm activity was scattered, but a few of the stronger storms produced large hail greater than an inch diameter, including one report of near golf ball size near Enosburg in Franklin county. Hail approaching golf ball size reported. CSV -201105 26 1448 201105 26 1448 50711 299202 TENNESSEE 47 2011 May Thunderstorm Wind C 89 JEFFERSON MRX 26-MAY-11 14:48:00 EST-5 26-MAY-11 14:48:00 0 0 0 0 Emergency Manager 50 EG \N \N \N 2 SW WHITE PINE 2 SW WHITE PINE 36.1 -83.3 36.1 -83.3 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. A barn was severely damaged when most of its roof was removed by thunderstorm wind gusts. CSV -201105 26 1529 201105 26 1529 50711 299203 TENNESSEE 47 2011 May Hail C 59 GREENE MRX 26-MAY-11 15:29:00 EST-5 26-MAY-11 15:29:00 0 0 0 0 Amateur Radio 1 \N \N \N 1 W MOHAWK 1 W MOHAWK 36.2 -83.06 36.2 -83.06 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Quarter size hail was reported. CSV -201105 26 1558 201105 26 1558 50711 299204 TENNESSEE 47 2011 May Hail C 163 SULLIVAN MRX 26-MAY-11 15:58:00 EST-5 26-MAY-11 15:58:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 NW SPRINGDALE 1 NW SPRINGDALE 36.53 -82.56 36.53 -82.56 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Quarter size hail was reported. CSV -201105 26 1600 201105 26 1600 50711 299205 TENNESSEE 47 2011 May Hail C 163 SULLIVAN MRX 26-MAY-11 16:00:00 EST-5 26-MAY-11 16:00:00 0 0 0 0 Trained Spotter 1.5 \N \N \N 1 W COLONIAL HGTS 1 W COLONIAL HGTS 36.48 -82.51 36.48 -82.51 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Ping pong ball size hail was reported. CSV -201105 26 1607 201105 26 1607 50711 299206 TENNESSEE 47 2011 May Hail C 179 WASHINGTON MRX 26-MAY-11 16:07:00 EST-5 26-MAY-11 16:07:00 0 0 0 0 Amateur Radio 1.75 \N \N \N 1 SW GRAY 1 SW GRAY 36.41 -82.48 36.41 -82.48 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Golf ball size hail was reported. CSV -201105 26 1620 201105 26 1620 50711 299207 TENNESSEE 47 2011 May Hail C 163 SULLIVAN MRX 26-MAY-11 16:20:00 EST-5 26-MAY-11 16:20:00 0 0 0 0 Amateur Radio 1 \N \N \N 1 SE GALLOWAY MILL 1 SE GALLOWAY MILL 36.46 -82.27 36.46 -82.27 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Quarter size hail was reported. CSV -201105 26 1620 201105 26 1620 50711 299208 TENNESSEE 47 2011 May Thunderstorm Wind C 155 SEVIER MRX 26-MAY-11 16:20:00 EST-5 26-MAY-11 16:20:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 1 W HENRY XRDS 1 W HENRY XRDS 35.95 -83.6 35.95 -83.6 The atmosphere destabilized during the late morning into afternoon period as a cold front progressed into the Southern Appalachian region. Large hail was the primary mode of severe weather as a pocket of cold air aloft moved across the forecast area. Several trees were reported down. CSV -201106 6 2103 201106 6 2103 52473 313503 FLORIDA 12 2011 June Thunderstorm Wind C 63 JACKSON TAE 06-JUN-11 21:03:00 CST-6 06-JUN-11 21:03:00 0 0 0 0 4.00K 0.00K Law Enforcement 50 EG \N \N \N 1 S ALFORD 1 S ALFORD 30.68 -85.39 30.68 -85.39 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Several trees were blown down along Alford Highway near Alford. The monetary damage figure provided is a rough estimate. CSV -201105 25 1825 201105 25 1825 50542 297741 ARKANSAS 5 2011 May Thunderstorm Wind C 139 UNION SHV 25-MAY-11 18:25:00 CST-6 25-MAY-11 18:25:00 1 0 0 0 40.00K 0.00K Law Enforcement 54 EG \N \N \N 2 NNE EL DORADO 2 NNE EL DORADO 33.22 -92.66 33.22 -92.66 Severe thunderstorms developed along and ahead of a dry line which moved out of north Texas and southern Oklahoma. Shear was very strong ahead of the dry line in the lower and mid levels of the atmosphere. The result was wind damage, hail and a few tornadoes reported across the region. A large tree was downed in town that fell on a home. There was a report of one minor injury. CSV -201105 12 1349 201105 12 1349 51315 304465 WEST VIRGINIA 54 2011 May Hail C 25 GREENBRIER RNK 12-MAY-11 13:49:00 EST-5 12-MAY-11 13:49:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 0 N RUPERT 0 N RUPERT 37.95 -80.68 37.95 -80.68 Northwesterly flow aloft continued the pattern of storminess over the mountains as disturbances dropped southeast along the periphery of the upper ridge. Storms developed in the early afternoon and dropped mainly hail across several counties. CSV -201105 12 1410 201105 12 1410 51315 304467 WEST VIRGINIA 54 2011 May Lightning C 25 GREENBRIER RNK 12-MAY-11 14:10:00 EST-5 12-MAY-11 14:10:00 0 0 0 0 2.00K 0.00K Law Enforcement \N \N \N \N 0 N MAXWELTON 0 N MAXWELTON 37.87 -80.42 37.87 -80.42 Northwesterly flow aloft continued the pattern of storminess over the mountains as disturbances dropped southeast along the periphery of the upper ridge. Storms developed in the early afternoon and dropped mainly hail across several counties. Lightning struck a tree which fell onto the roof of a house. CSV -201105 12 1419 201105 12 1419 51315 304468 WEST VIRGINIA 54 2011 May Hail C 63 MONROE RNK 12-MAY-11 14:19:00 EST-5 12-MAY-11 14:19:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 WSW CASHMERE 1 WSW CASHMERE 37.44 -80.8 37.44 -80.8 Northwesterly flow aloft continued the pattern of storminess over the mountains as disturbances dropped southeast along the periphery of the upper ridge. Storms developed in the early afternoon and dropped mainly hail across several counties. Quarter-size hail reported on Minnie Dunn Road. CSV -201105 12 1420 201105 12 1420 51315 304469 WEST VIRGINIA 54 2011 May Hail C 63 MONROE RNK 12-MAY-11 14:20:00 EST-5 12-MAY-11 14:20:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 1 SSW CASHMERE 1 SSW CASHMERE 37.43 -80.79 37.43 -80.79 Northwesterly flow aloft continued the pattern of storminess over the mountains as disturbances dropped southeast along the periphery of the upper ridge. Storms developed in the early afternoon and dropped mainly hail across several counties. CSV -201105 12 1515 201105 12 1515 51315 304470 WEST VIRGINIA 54 2011 May Hail C 89 SUMMERS RNK 12-MAY-11 15:15:00 EST-5 12-MAY-11 15:15:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 1 E FOREST HILL 1 E FOREST HILL 37.57 -80.79 37.57 -80.79 Northwesterly flow aloft continued the pattern of storminess over the mountains as disturbances dropped southeast along the periphery of the upper ridge. Storms developed in the early afternoon and dropped mainly hail across several counties. Hail fell near Forest Hill. CSV -201104 20 1950 201104 20 1958 50376 301626 MISSISSIPPI 28 2011 April Thunderstorm Wind C 25 CLAY JAN 20-APR-11 19:50:00 CST-6 20-APR-11 19:58:00 0 0 0 0 75.00K 0.00K Emergency Manager 62 EG \N \N \N 1 ENE CEDARBLUFF 2 E WEST PT 33.59 -88.83 33.6061 -88.6116 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. Multiple trees were blown down along with several power lines. Several of the trees were down across roads with one down on a house along Cedar Bluff Road. CSV -201104 20 2006 201104 20 2006 50376 301637 MISSISSIPPI 28 2011 April Thunderstorm Wind C 105 OKTIBBEHA JAN 20-APR-11 20:06:00 CST-6 20-APR-11 20:06:00 0 0 0 0 25.00K 0.00K Emergency Manager 50 EG \N \N \N 3 S SESSUMS 3 S SESSUMS 33.3718 -88.7148 33.3718 -88.7148 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. A tree was blown down on a house along Old Crawford Road. CSV -201106 6 2140 201106 6 2140 52473 313506 FLORIDA 12 2011 June Thunderstorm Wind C 5 BAY TAE 06-JUN-11 21:40:00 CST-6 06-JUN-11 21:40:00 0 0 0 0 3.00K 0.00K County Official 50 EG \N \N \N 3 WNW FOUNTAIN 3 WNW FOUNTAIN 30.49 -85.47 30.49 -85.47 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. Trees were blown down along Silver Lake Road near the town of Fountain. The monetary damage figure provided is a rough estimate. CSV -201106 7 1300 201106 7 1300 52473 313510 FLORIDA 12 2011 June Thunderstorm Wind C 5 BAY TAE 07-JUN-11 13:00:00 CST-6 07-JUN-11 13:00:00 0 0 0 0 3.00K 0.00K Newspaper 50 EG \N \N \N 1 S DIREGO PARK 1 S DIREGO PARK 30.17 -85.64 30.17 -85.64 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. A tree was blown down onto a car on Bay Avenue across from Rosenwald High school in Panama City. The monetary damage figure provided is a rough estimate. CSV -201106 7 1310 201106 7 1310 52473 313515 FLORIDA 12 2011 June Thunderstorm Wind C 5 BAY TAE 07-JUN-11 13:10:00 CST-6 07-JUN-11 13:10:00 0 0 0 0 1.00K 0.00K Newspaper 50 EG \N \N \N 1 WSW (PFN)PANAMA CITY ARPT 1 WSW (PFN)PANAMA CITY ARPT 30.19 -85.7 30.19 -85.7 A seasonably moist and unstable air mass produced scattered afternoon and evening thunderstorms across portions of the Florida Panhandle and Big Bend. A few storms were severe. A tree was blown down across the road at the intersection of 23rd Street and Bayview Avenue in Panama City. The monetary damage figure provided is a rough estimate. CSV -201104 11 210 201104 11 210 48520 285800 TEXAS 48 2011 April Thunderstorm Wind C 499 WOOD SHV 11-APR-11 02:10:00 CST-6 11-APR-11 02:10:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 1 WSW YANTIS 1 WSW YANTIS 32.92 -95.59 32.92 -95.59 A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th. This storm system was associated with a dryline and cold front which separated a very warm and moist airmass across Southwest Arkansas from a much drier and cooler airmass further to the west. These storms became linear in nature along the dryline/cold front merger which occurred across Northeast Texas, into Southeast Oklahoma and Southwest Arkansas. The result was damaging wind gusts. Trees were downed on FM 17 and also on CR 1912. CSV -201104 11 245 201104 11 245 48520 285801 TEXAS 48 2011 April Thunderstorm Wind C 387 RED RIVER SHV 11-APR-11 02:45:00 CST-6 11-APR-11 02:45:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 1 SW CLARKSVILLE 1 SW CLARKSVILLE 33.61 -95.06 33.61 -95.06 A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th. This storm system was associated with a dryline and cold front which separated a very warm and moist airmass across Southwest Arkansas from a much drier and cooler airmass further to the west. These storms became linear in nature along the dryline/cold front merger which occurred across Northeast Texas, into Southeast Oklahoma and Southwest Arkansas. The result was damaging wind gusts. Trees were downed throughout much of the county. CSV -201104 11 255 201104 11 255 48520 285803 TEXAS 48 2011 April Thunderstorm Wind C 387 RED RIVER SHV 11-APR-11 02:55:00 CST-6 11-APR-11 02:55:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 2 SSE ANNONA 2 SSE ANNONA 33.55 -94.91 33.55 -94.91 A strong upper level trough moved eastward across Oklahoma into Arkansas during the early morning hours of April 11th. This storm system was associated with a dryline and cold front which separated a very warm and moist airmass across Southwest Arkansas from a much drier and cooler airmass further to the west. These storms became linear in nature along the dryline/cold front merger which occurred across Northeast Texas, into Southeast Oklahoma and Southwest Arkansas. The result was damaging wind gusts. Trees were downed on Hwy. 44 south of Annona, Texas. CSV -201104 26 1927 201104 26 1927 49622 291322 LOUISIANA 22 2011 April Thunderstorm Wind C 15 BOSSIER SHV 26-APR-11 19:27:00 CST-6 26-APR-11 19:27:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N TAYLORTOWN 0 N TAYLORTOWN 32.38 -93.6 32.38 -93.6 A very volatile atmosphere developed during the late afternoon...evening and overnight hours of April 26th across the Four State Region. An area of low pressure moved from the Texas Hill Country into Northeast Texas during the afternoon. Meanwhile, a warm front had moved northward from central Louisiana and was oriented west to east near the Arkansas/Louisiana state line. A dry line had moved just east of the I-35 corridor of North Central Texas and a strong cold front trailed the dry line. Very strong speed and directional shear was noted in the low and mid levels of the atmosphere such that supercells developed. Many of these produced tornadoes across the region. Other storms produced strong straight line wind gusts with bowing segments and large hail. Large tree branches were downed from winds estimated near 60 mph. CSV -201105 25 1710 201105 25 1910 49978 293733 NEBRASKA 31 2011 May Flash Flood C 147 RICHARDSON OAX 25-MAY-11 17:10:00 CST-6 25-MAY-11 19:10:00 0 0 0 0 1.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 3 S FALLS CITY 3 S FALLS CITY 40.0299 -95.5988 40.0307 -95.5985 Heavy rain producing thunderstorms wrapped around low pressure that tracked south of the region. The resultant training of echoes over far southeast Nebraska caused an isolated flash flooding report near Falls City. Two to three inches of rain fell over much of Richardson county over several hours during the afternoon/early evening of 5/25...2.29 inches was measured at Falls City. The heavy rain caused flash flooding for a few hours across Pony Creek Road south of Falls City causing its brief closure. CSV -201105 29 555 201105 29 555 50085 294368 NEBRASKA 31 2011 May Hail C 55 DOUGLAS OAX 29-MAY-11 05:55:00 CST-6 29-MAY-11 05:55:00 0 0 0 0 0.00K 0.00K NWS Employee 1.25 \N \N \N 1 W ELKHORN 1 W ELKHORN 41.28 -96.24 41.28 -96.24 Thunderstorms developed in southeast Nebraska an elevated warm advection zone north of a surface warm front which was in southeast Kansas. The storms produced isolated hail reports as large as half dollar-size. An off duty NWS employee reported that a few hailstones around half dollar-size fell in the Elkhorn area. CSV -201107 13 1446 201107 13 1450 52054 310157 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 3 AIKEN CAE 13-JUL-11 14:46:00 EST-5 13-JUL-11 14:50:00 0 0 0 0 0.00K 0.00K AWOS 51 MG \N \N \N 1 W AIKEN AFS 1 W AIKEN AFS 33.65 -81.69 33.65 -81.69 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Aiken AWOS reported a wind gust of 51 kts or 59 mph. CSV -201107 13 1605 201107 13 1607 52054 310159 SOUTH CAROLINA 45 2011 July Hail C 61 LEE CAE 13-JUL-11 16:05:00 EST-5 13-JUL-11 16:07:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 4 WNW LUCKNOW 4 WNW LUCKNOW 34.317 -80.393 34.317 -80.393 Scattered severe thunderstorms produced wind damage and some 3/4 inch hail around the Midlands of South Carolina. Most of the wind damage was from trees being blown down. Sheriff reported 3/4 inch hail on Baskin road. CSV -201107 31 1545 201107 31 1547 53209 318222 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 79 RICHLAND CAE 31-JUL-11 15:45:00 EST-5 31-JUL-11 15:47:00 0 0 0 0 2.00K 0.00K Emergency Manager 50 EG \N \N \N 1 ESE COLUMBIA 1 ESE COLUMBIA 33.99 -81 33.99 -81 Clusters of multicelluar storms deveopled over the Midlands and Pee Dee regions producing very heavy rains and some wind damage. There were also a few reportes of 1/2 inch hail. EM reported trees down near Heyward and Pickens streets. CSV -201107 31 1549 201107 31 1551 53209 318223 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 79 RICHLAND CAE 31-JUL-11 15:49:00 EST-5 31-JUL-11 15:51:00 0 0 0 0 2.00K 0.00K Law Enforcement 50 EG \N \N \N 1 W COLUMBIA 1 W COLUMBIA 34 -81.03 34 -81.03 Clusters of multicelluar storms deveopled over the Midlands and Pee Dee regions producing very heavy rains and some wind damage. There were also a few reportes of 1/2 inch hail. Highway Patrol reported trees in the roadway on Main Street and also on Monticello Road. CSV -201107 31 1648 201107 31 1654 53209 318225 SOUTH CAROLINA 45 2011 July Thunderstorm Wind C 3 AIKEN CAE 31-JUL-11 16:48:00 EST-5 31-JUL-11 16:54:00 0 0 0 0 4.00K 0.00K Department of Highways 55 EG \N \N \N 0 N OAKWOOD 0 N KITCHINGS MILL 33.52 -81.58 33.58 -81.48 Clusters of multicelluar storms deveopled over the Midlands and Pee Dee regions producing very heavy rains and some wind damage. There were also a few reportes of 1/2 inch hail. DOT reported several trees down in the Oakwood and Kitchens Mill areas. CSV -201104 1 0 201104 30 2359 52357 312640 TEXAS 48 2011 April Drought Z 88 BAYLOR OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 Other Federal Agency \N \N \N \N \N \N \N \N \N \N North Texas continued to experience hot and dry conditions in April. D3 drought status (the 2nd worst) was already present over all 8 counties, but two counties worsened into D4 drought status by the end of the month. Normally a wetter month, most of the normal spring thunderstorm activity missed a large portion of Oklahoma. The dry April only compounded the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Baylor county remained in D3 drought status through the month. CSV -201105 11 1620 201105 11 1620 52308 312278 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 16:20:00 EST-5 11-MAY-11 16:20:00 0 0 0 0 Public 1 \N \N \N 7 WNW JOCASSEE 7 WNW JOCASSEE 35.01 -83.04 35.01 -83.04 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Quarter size hail was reported in the Bad Creek area. CSV -201105 11 1624 201105 11 1624 52308 312281 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 16:24:00 EST-5 11-MAY-11 16:24:00 0 0 0 0 County Official 1.75 \N \N \N 2 WNW SALEM 2 WNW SALEM 34.89 -83 34.89 -83 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Golf ball size hail was reported on the west side of Salem. CSV -201105 11 1636 201105 11 1636 52308 312285 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 16:36:00 EST-5 11-MAY-11 16:36:00 0 0 0 0 County Official 1 \N \N \N 3 E MOUNTAIN REST 3 E MOUNTAIN REST 34.87 -83.1 34.87 -83.1 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Quarter size hail was reported at Oconee State Park. CSV -201105 11 1655 201105 11 1655 52308 312287 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 16:55:00 EST-5 11-MAY-11 16:55:00 0 0 0 0 Trained Spotter 0.88 \N \N \N 3 SSW WALHALLA 3 SSW WALHALLA 34.73 -83.09 34.73 -83.09 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Dime to nickel size hail fell at the intersection of Hesse Highway and Rock Crusher Rd. CSV -201105 11 1732 201105 11 1732 52308 312369 SOUTH CAROLINA 45 2011 May Hail C 73 OCONEE GSP 11-MAY-11 17:32:00 EST-5 11-MAY-11 17:32:00 0 0 0 0 Public 2.75 \N \N \N 1 SW LONG CREEK 1 SW LONG CREEK 34.77 -83.26 34.77 -83.26 Scattered thunderstorms drifted out of the North Carolina mountains, and consolidated into a large storm that moved across much of Oconee County. The storm produced hail up to the size of baseballs. Golf ball to baseball size hail fell at the intersection of Academy Rd and highway 76, resulting in vehicle damage. CSV -201104 22 2145 201104 22 2345 49323 305076 OKLAHOMA 40 2011 April Flash Flood C 33 COTTON OUN 22-APR-11 21:45:00 CST-6 22-APR-11 23:45:00 0 0 0 0 0.00K 0.00K Law Enforcement \N Heavy Rain \N \N \N 3 SSE WALTERS ARPT 3 NW WALTERS 34.3322 -98.3874 34.3763 -98.3513 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. Several roadways, including Highway 5 were under water due to very heavy rainfall. The roadways had to be closed for a short time as a result. CSV -201104 22 2230 201104 22 2230 49323 305079 OKLAHOMA 40 2011 April Hail C 31 COMANCHE OUN 22-APR-11 22:30:00 CST-6 22-APR-11 22:30:00 0 0 0 0 0.00K 0.00K Amateur Radio 2 \N \N \N 0 N GERONIMO 0 N GERONIMO 34.48 -98.38 34.48 -98.38 A cold front moved slowly southeast before stalling near the I-44 corridor. A dry line stretched just ahead of the front, lying from near Lawton southward into northern Texas, with warm, moist air present ahead of it. By early evening, thunderstorms had developed ahead of these boundaries, just south and east of the Oklahoma City metro area. Large hail was reported with several of the thunderstorms. The development of the low-level jet added to the already sufficient wind shear for supercell thunderstorms, but also aided the low-level rotation in some of the thunderstorms. A couple of short-lived tornadoes were reported over Garvin and McClain counties, with some damage reported. The storms continued to develop through the evening hours, with many of them moving over the same areas. The drought that was in place was helped by the welcome rainfall, although a few areas reported brief flash-flooding. CSV -201104 1 0 201104 30 2359 52357 312641 TEXAS 48 2011 April Drought Z 90 CLAY OUN 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 Other Federal Agency \N \N \N \N \N \N \N \N \N \N North Texas continued to experience hot and dry conditions in April. D3 drought status (the 2nd worst) was already present over all 8 counties, but two counties worsened into D4 drought status by the end of the month. Normally a wetter month, most of the normal spring thunderstorm activity missed a large portion of Oklahoma. The dry April only compounded the very dry conditions seen over the region since the beginning of October 2010. In fact, this is the 3rd driest period statewide since October 1. Agricultural impacts were severe, as most the winter wheat crop was non-existent, as well as losses to other crops. The dry conditions also gave rise to enhanced fire weather concerns, with the normal increase in wind speeds during the spring months. Clay county remained in D3 drought status through the month. CSV -201105 30 1830 201105 30 1830 50437 297219 NEBRASKA 31 2011 May Hail C 41 CUSTER LBF 30-MAY-11 18:30:00 CST-6 30-MAY-11 18:30:00 0 0 0 0 0.00K 0.00K COOP Observer 1 \N \N \N 1 E ANSELMO 1 E ANSELMO 41.62 -99.86 41.62 -99.86 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201104 8 1820 201104 8 1820 48498 283376 OKLAHOMA 40 2011 April Hail C 93 MAJOR OUN 08-APR-11 18:20:00 CST-6 08-APR-11 18:20:00 0 0 0 0 0.00K 0.00K Storm Chaser 1.5 \N \N \N 6 N RINGWOOD 6 N RINGWOOD 36.4668 -98.25 36.4668 -98.25 A weak cold front slipped into northern Oklahoma during the early morning hours of the 8th. Meanwhile, a dry line sharpened up near the Oklahoma/Texas panhandle border. Gulf moisture streamed north, with low to middle 60 dew point temperatures in place by late afternoon to the east of the dry line. The cold front had become stationary, providing another focus for afternoon thunderstorms. The cap that was in place for much of the day, weakened sufficiently for thunderstorms to develop over the western third of Oklahoma. Instability and wind shear were already in place, and a weak upper level disturbance moved northeast from west Texas during peak heating hours. Supercell thunderstorms moved northeast, with very large hail to the size of baseballs and strong winds reported along their path. The most intense damage occurred at Ponca City, where a wind gust over 90 mph was measured. CSV -201104 14 1845 201104 14 1845 48744 285082 OKLAHOMA 40 2011 April Hail C 81 LINCOLN OUN 14-APR-11 18:45:00 CST-6 14-APR-11 18:45:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.88 \N \N \N 0 E WARWICK 0 E WARWICK 35.69 -97.01 35.69 -97.01 An upper level trough moved onshore along the west coast on the 13th, and continued east toward the plains. The storm system strengthened as it moved east of the Rocky mountains, eventually becoming a major storm system, with blizzard conditions on the west and north sides of it, and powerful thunderstorms to the south and east. A surface low pressure moved from the Texas panhandle into southern Kansas, with a dry line extending to the south. The dry line moved quickly east before slowing to the east of I-35 in Oklahoma. Dew point temperatures reached the middle 60s east of the dry line, with bone-dry conditions advecting in on the back side of the dry line. The cap that was in place was all but erased by mid afternoon, and thunderstorms quickly developed over eastern Oklahoma. The wind shear in place was more than sufficient for rotating thunderstorms, with most storms become supercells. Very large hail and wind damage was common early in the thunderstorm life cycle. A weak tornado developed northwest of Stroud, with other storms showing signs of rotation by late afternoon. Additional tornadoes developed through the early evening, with a couple of them doing damage. The tornadoes were in addition to the hail up to softball size. By late evening, at least five tornadoes were reported, with one of them rated and EF-3. CSV -201105 15 1220 201105 15 1220 53160 318001 CALIFORNIA 6 2011 May Funnel Cloud C 19 FRESNO HNX 15-MAY-11 12:20:00 PST-8 15-MAY-11 12:20:00 0 0 0 0 0.00K 0.00K Trained Spotter \N \N \N \N 6 NE JAMESAN 6 NE JAMESAN 36.78 -120.15 36.78 -120.15 The next upper-level trough began moving into California on May 14th, bringing colder air and abundant mid and high clouds. Temperatures in the central and southern San Joaquin Valley only reached the mid 60s to mid 70s, down as much as 22 degrees from the 13th. During the morning of the 14th, a thin layer of cirrostratus covered the San Joaquin Valley. The layer of ice crystals aloft produced a prominent halo around the Sun that was visible from parts of the Valley.||The upper-level trough remained over the central California interior from May 15th through the 18th. Upper-level disturbances brought periods of showers to the region, as well as scattered thunderstorms during the afternoon of the 15th. Three funnel clouds were seen over the central San Joaquin Valley on May 15th (one in the morning near the foothills east of Fresno, and two in the afternoon near Kerman), and another funnel was observed on the 18th near Arvin in Kern County. A funnel cloud was reported by a trained weather spotter. CSV -201105 13 1600 201105 13 2000 52965 316751 PENNSYLVANIA 42 2011 May Flood C 51 FAYETTE PBZ 13-MAY-11 16:00:00 EST-5 13-MAY-11 20:00:00 0 0 0 0 10.00K 0.00K State Official \N Heavy Rain \N \N \N 1 W FOOTEDALE 0 S HIGHHOUSE 39.9 -79.86 39.8671 -79.8294 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. State official reports that a mudslide has occurred in German Township. Also, several roads are closed in Masontown due to flooding. CSV -201105 13 1627 201105 13 2000 52965 316753 PENNSYLVANIA 42 2011 May Flood C 129 WESTMORELAND PBZ 13-MAY-11 16:27:00 EST-5 13-MAY-11 20:00:00 0 0 0 0 15.00K 0.00K State Official \N Heavy Rain \N \N \N 2 W MILLIGANTOWN 1 WSW KINLOCK 40.57 -79.71 40.548 -79.7405 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. State official reports that numerous houses and roads are flooded in Upper Burrell Township. Also, an apartment building was flooded. CSV -201105 13 1639 201105 14 600 52965 316754 PENNSYLVANIA 42 2011 May Flood C 59 GREENE PBZ 13-MAY-11 16:39:00 EST-5 14-MAY-11 06:00:00 0 0 0 0 5.00K 0.00K Public \N Heavy Rain \N \N \N 2 NW KHEDIVE 1 NE SIGSBEE 39.9 -80.07 39.8444 -79.9612 A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio. The public reports numerous roads off of Route 21 flooded. CSV -201105 30 1805 201105 30 1805 50437 297217 NEBRASKA 31 2011 May Hail C 9 BLAINE LBF 30-MAY-11 18:05:00 CST-6 30-MAY-11 18:05:00 0 0 0 0 0.00K 0.00K Public 1 \N \N \N 14 SE BREWSTER 14 SE BREWSTER 41.77 -99.69 41.77 -99.69 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1810 201105 30 1810 50437 297218 NEBRASKA 31 2011 May Hail C 41 CUSTER LBF 30-MAY-11 18:10:00 CST-6 30-MAY-11 18:10:00 0 0 0 0 0.00K 0.00K COOP Observer 1 \N \N \N 2 SE ANSELMO 2 SE ANSELMO 41.6 -99.84 41.6 -99.84 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201106 9 56 201106 9 56 54151 324762 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 441 PORT AUSTIN TO HARBOR BEACH MI DTX 09-JUN-11 00:56:00 EST-5 09-JUN-11 00:56:00 0 0 0 0 0.00K 0.00K ASOS 34 MG \N \N \N 0 N PORT HOPE 0 N PORT HOPE 43.93 -82.72 43.93 -82.72 A severe thunderstorm moved through Saginaw Bay, with weaker storms impacting the Nearshore waters of Lake Huron. CSV -201105 30 1652 201105 30 1652 50437 297220 NEBRASKA 31 2011 May Hail C 9 BLAINE LBF 30-MAY-11 16:52:00 CST-6 30-MAY-11 16:52:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 S BREWSTER 1 S BREWSTER 41.91 -99.87 41.91 -99.87 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 30 1555 201105 30 1555 50437 297221 NEBRASKA 31 2011 May Thunderstorm Wind C 101 KEITH LBF 30-MAY-11 15:55:00 MST-7 30-MAY-11 15:55:00 0 0 0 0 0.00K 0.00K AWOS 55 MG \N \N \N 0 N OGALLALA 0 N OGALLALA 41.13 -101.72 41.13 -101.72 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 24 1017 201105 24 1017 50705 299117 TENNESSEE 47 2011 May Hail C 163 SULLIVAN MRX 24-MAY-11 10:17:00 EST-5 24-MAY-11 10:17:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 WSW BRISTOL 1 WSW BRISTOL 36.57 -82.2 36.57 -82.2 A short wave trough moving through the Mid Mississippi and Lower Ohio Valley produced strong convection across Kentucky and Northern Middle Tennessee early in the day. The convection organized into a Mesoscale Convective System as it moved into the unstable atmosphere across Southwest Virginia and Northeast Tennessee. Severe convection continued to form well into the afternoon in the vicinity of a west through east outflow boundary in place across extreme Southwest Virginia. Quarter size hail was reported. CSV -201105 24 1400 201105 24 1400 50705 299119 TENNESSEE 47 2011 May Thunderstorm Wind C 163 SULLIVAN MRX 24-MAY-11 14:00:00 EST-5 24-MAY-11 14:00:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 1 NW SPRINGDALE 1 NW SPRINGDALE 36.53 -82.56 36.53 -82.56 A short wave trough moving through the Mid Mississippi and Lower Ohio Valley produced strong convection across Kentucky and Northern Middle Tennessee early in the day. The convection organized into a Mesoscale Convective System as it moved into the unstable atmosphere across Southwest Virginia and Northeast Tennessee. Severe convection continued to form well into the afternoon in the vicinity of a west through east outflow boundary in place across extreme Southwest Virginia. A few trees were reported down in the vicinity of Kingsport. CSV -201105 24 1550 201105 24 1550 50705 299121 TENNESSEE 47 2011 May Thunderstorm Wind C 151 SCOTT MRX 24-MAY-11 15:50:00 EST-5 24-MAY-11 15:50:00 0 0 0 0 Law Enforcement 50 EG \N \N \N 1 SSE HELENWOOD 1 SSE HELENWOOD 36.41 -84.52 36.41 -84.52 A short wave trough moving through the Mid Mississippi and Lower Ohio Valley produced strong convection across Kentucky and Northern Middle Tennessee early in the day. The convection organized into a Mesoscale Convective System as it moved into the unstable atmosphere across Southwest Virginia and Northeast Tennessee. Severe convection continued to form well into the afternoon in the vicinity of a west through east outflow boundary in place across extreme Southwest Virginia. A few trees were reported down. CSV -201105 24 1635 201105 24 1635 50705 299123 TENNESSEE 47 2011 May Thunderstorm Wind C 13 CAMPBELL MRX 24-MAY-11 16:35:00 EST-5 24-MAY-11 16:35:00 0 0 0 0 Law Enforcement 55 EG \N \N \N 1 ESE WELL SPG 1 ESE WELL SPG 36.44 -83.95 36.44 -83.95 A short wave trough moving through the Mid Mississippi and Lower Ohio Valley produced strong convection across Kentucky and Northern Middle Tennessee early in the day. The convection organized into a Mesoscale Convective System as it moved into the unstable atmosphere across Southwest Virginia and Northeast Tennessee. Severe convection continued to form well into the afternoon in the vicinity of a west through east outflow boundary in place across extreme Southwest Virginia. A few trees were reported down in the vicinity of Speedwell. CSV -201105 30 1602 201105 30 1602 50437 297223 NEBRASKA 31 2011 May Thunderstorm Wind C 101 KEITH LBF 30-MAY-11 16:02:00 MST-7 30-MAY-11 16:02:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 MG \N \N \N 0 N OGALLALA 0 N OGALLALA 41.13 -101.72 41.13 -101.72 A powerful low pressure system moved across western and north central Nebraska on Memorial Day. Thunderstorms developed along a cold front extending across central Nebraska. The storms tracked quickly northeast to produce hail up to 4 inches in diameter, damaging winds and several tornadoes. CSV -201105 26 1433 201105 26 1433 52927 316911 NEW YORK 36 2011 May Thunderstorm Wind C 49 LEWIS BUF 26-MAY-11 14:33:00 EST-5 26-MAY-11 14:33:00 0 0 0 0 10.00K 0.00K Law Enforcement 50 MG \N \N \N 1 W BEACHES BRIDGE 1 W BEACHES BRIDGE 43.78 -75.44 43.78 -75.44 A slow moving cold front generated showers and thunderstorms across the region. One of these storms downed trees and wires in Sherman and Mayville in Chautauqua County. Other storms strengthened over the north country downing trees and power lines in Lowville, New Bremen and Watson. In Cayuga County, thunderstorm winds downed trees and power lines and tore the roof off a home on Jordan Road near Cross Lake. CSV -201105 26 1650 201105 26 1650 52927 316913 NEW YORK 36 2011 May Thunderstorm Wind C 13 CHAUTAUQUA BUF 26-MAY-11 16:50:00 EST-5 26-MAY-11 16:50:00 0 0 0 0 8.00K 0.00K Emergency Manager 50 MG \N \N \N 1 SW SHERMAN 1 SW SHERMAN 42.16 -79.59 42.16 -79.59 A slow moving cold front generated showers and thunderstorms across the region. One of these storms downed trees and wires in Sherman and Mayville in Chautauqua County. Other storms strengthened over the north country downing trees and power lines in Lowville, New Bremen and Watson. In Cayuga County, thunderstorm winds downed trees and power lines and tore the roof off a home on Jordan Road near Cross Lake. CSV -201105 22 1750 201105 22 1755 51433 305655 ILLINOIS 17 2011 May Hail C 179 TAZEWELL ILX 22-MAY-11 17:50:00 CST-6 22-MAY-11 17:55:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.88 \N \N \N 0 N PEKIN 0 N PEKIN 40.57 -89.63 40.57 -89.63 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201105 22 1300 201105 22 1305 51433 305656 ILLINOIS 17 2011 May Hail C 179 TAZEWELL ILX 22-MAY-11 13:00:00 CST-6 22-MAY-11 13:05:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 0 N MORTON 0 N MORTON 40.62 -89.45 40.62 -89.45 A strong cold front interacting with a highly unstable airmass triggered several rounds of thunderstorms across central Illinois during the afternoon of May 22nd. Numerous reports of large hail were received, with up to golfball-sized stones occurring across parts of Mason County. In addition, 60 to 70 mph winds downed trees across Knox County. CSV -201106 9 154 201106 9 154 54151 324764 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 443 PORT SANILAC TO PORT HURON MI DTX 09-JUN-11 01:54:00 EST-5 09-JUN-11 01:54:00 0 0 0 0 0.00K 0.00K C-MAN Station 37 MG \N \N \N 5 SSE LAKEPORT 5 SSE LAKEPORT 43.0517 -82.4507 43.0517 -82.4507 A severe thunderstorm moved through Saginaw Bay, with weaker storms impacting the Nearshore waters of Lake Huron. CSV -201105 23 1347 201105 23 1348 51442 305678 ILLINOIS 17 2011 May Hail C 159 RICHLAND ILX 23-MAY-11 13:47:00 CST-6 23-MAY-11 13:48:00 0 0 0 0 0.00K 0.00K Mesonet 1.75 \N \N \N 1 N OLNEY 1 N OLNEY 38.7445 -88.08 38.7445 -88.08 Low pressure tracking along a nearly stationary frontal boundary brought severe thunderstorms into southeast Illinois during the afternoon of May 23rd. The storms originated in southwest Missouri, then moved northeastward in the form of a bow echo into east-central and southeast Illinois. Widespread winds of 60 to 70 mph downed numerous trees and powerlines along and southeast of an Effingham to Danville line. CSV -201105 25 510 201105 25 511 51473 305951 ILLINOIS 17 2011 May Hail C 143 PEORIA ILX 25-MAY-11 05:10:00 CST-6 25-MAY-11 05:11:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 1 N BARTONVILLE 1 N BARTONVILLE 40.6645 -89.67 40.6645 -89.67 Strong thunderstorms developed along an advancing warm front between 2 AM and 9 AM on May 25th. Some of the storms became severe, producing scattered wind damage from Morgan County northeastward to Tazewell County. Other damage was noted across Champaign, Vermilion, and Douglas counties. In addition, two brief tornadoes touched down in eastern Macon County. CSV -201104 20 1448 201104 20 1458 50376 297084 MISSISSIPPI 28 2011 April Hail C 19 CHOCTAW JAN 20-APR-11 14:48:00 CST-6 20-APR-11 14:58:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 3 NW SHERWOOD 3 NE SHERWOOD 33.51 -89.16 33.5039 -89.0964 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. CSV -201104 20 1649 201104 20 1725 50376 297131 MISSISSIPPI 28 2011 April Hail C 87 LOWNDES JAN 20-APR-11 16:49:00 CST-6 20-APR-11 17:25:00 0 0 0 0 0.00K Trained Spotter 1.75 \N \N \N 2 WNW MAYHEW 2 SW FLYNN 33.487 -88.6586 33.5122 -88.4671 A multi-round severe weather event developed during the early morning hours of the 20th and lasted into the afternoon of the 21st. There were breaks in the episodes of the storms, but the axis of the activity mainly stayed across the northern sections of the forecast area. During these episodes, scattered supercell thunderstorms developed and produced large hail along with some damaging winds. A few of the more intense supercell storms produced hail as large as tennis balls and baseballs. As these storms moved over the same locations, locally heavy rainfall and flash flooding occurred across some areas. CSV -201106 1 0 201106 30 2359 51675 308022 GEORGIA 13 2011 June Drought Z 147 COOK TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308024 GEORGIA 13 2011 June Drought Z 156 DECATUR TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308025 GEORGIA 13 2011 June Drought Z 125 DOUGHERTY TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201106 1 0 201106 30 2359 51675 308026 GEORGIA 13 2011 June Drought Z 142 EARLY TAE 01-JUN-11 00:00:00 EST-5 30-JUN-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N At the beginning of the month, extreme drought conditions (D3) were present over all of southwest and south central Georgia. By the end of the month, conditions worsened to exceptional drought status (D4) over the entire area with the exception of Berrien and Lanier counties, which remained in extreme drought status. CSV -201105 22 600 201105 31 2359 52917 316408 IOWA 19 2011 May Flood C 21 BUENA VISTA FSD 22-MAY-11 06:00:00 CST-6 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K River/Stream Gage \N Heavy Rain \N \N \N 0 N LINN GROVE 2 N LINN GROVE 42.88 -95.25 42.9017 -95.25 Heavy rain brought the Little Sioux River back above flood stage in late May, with minor flooding reported. Heavy rain caused the Little Sioux River to rise again above flood stage, after spring snowmelt flooding subsided. Minor flooding was reported with some lowlands and a few roads flooded. The river crested at 1.1 feet above flood stage at Linn Grove on May 28th, then began to fall, remaining just above flood stage at the end of the month. CSV -201105 25 600 201105 31 2359 52937 316545 IOWA 19 2011 May Flood C 193 WOODBURY FSD 25-MAY-11 06:00:00 CST-6 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Newspaper \N Heavy Rain / Snow Melt \N \N \N 7 WNW (SUX)SIOUX CITY ARPT 9 W SLOAN 42.44 -96.51 42.21 -96.4 The Missouri River began a significant rise near the end of the month in response to widespread upstream heavy rain which fell after unusually large upstream snowmelt. Flooding developed by the end of May with the river on the way up across its length. Flooding along the Missouri River developed in late May as runoff from excessive upstream snowmelt and rain reached the area. Lowlands flooded included a few roads along the river in Sioux City, and some yards in Sloan. The river reached its highest May levels at the end of the month. CSV -201104 4 740 201104 4 740 48384 282618 TEXAS 48 2011 April Hail C 37 BOWIE SHV 04-APR-11 07:40:00 CST-6 04-APR-11 07:40:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 1 ESE WAKE VLG 1 ESE WAKE VLG 33.41 -94.06 33.41 -94.06 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. Dime size hail reported southwest of Texarkana. CSV -201104 4 745 201104 4 745 48384 282619 TEXAS 48 2011 April Thunderstorm Wind C 37 BOWIE SHV 04-APR-11 07:45:00 CST-6 04-APR-11 07:45:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 0 N SOUTH TEXARKANA 0 N SOUTH TEXARKANA 33.37 -94.07 33.37 -94.07 A strong upper level short wave move from west to east across the Central Plains states of the U.S. driving a cold front southeast into the Four State Region. Strong to severe thunderstorms formed in the unstable air mass ahead of the cold front. The front and at least 3 lines of thunderstorms moved through the Four State Region from west to east during the day. Strong low level shear in the atmosphere allowed some thunderstorms to rotate, producing tornadoes with damaging straight line winds producing downbursts. Several areas of Texarkana without power. Scattered power outages with some tree damage in the area. CSV -201107 11 1445 201107 11 1445 53835 322444 OHIO 39 2011 July Thunderstorm Wind C 167 WASHINGTON RLX 11-JUL-11 14:45:00 EST-5 11-JUL-11 14:45:00 0 0 0 0 5.00K 0.00K Department of Highways 50 EG \N \N \N 0 N WATERFORD 0 N WATERFORD 39.53 -81.63 39.53 -81.63 In a hot and humid air mass, long lived strong to severe thunderstorms traveled southeast through southeast Ohio during the afternoon. A second cluster of strong thunderstorms reformed over northeast Indiana and northern Ohio by evening. The environment recovered quickly, allowing the second complex to reach southeast Ohio during the late evening. Both complexes contained frequent lightning. The second cluster bowed in several places, allowing for repetitive showers to hit portions of Athens County. Several trees were blown down. CSV -201108 1 0 201108 31 2359 54909 329904 FLORIDA 12 2011 August Drought Z 27 INLAND WAKULLA TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329905 FLORIDA 12 2011 August Drought Z 11 JACKSON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329906 FLORIDA 12 2011 August Drought Z 29 LAFAYETTE TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329907 FLORIDA 12 2011 August Drought Z 17 LEON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329908 FLORIDA 12 2011 August Drought Z 26 LIBERTY TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329909 FLORIDA 12 2011 August Drought Z 19 MADISON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201108 1 0 201108 31 2359 54909 329910 FLORIDA 12 2011 August Drought Z 107 NORTH WALTON TAE 01-AUG-11 00:00:00 EST-5 31-AUG-11 23:59:00 0 0 0 0 Official NWS Observations \N \N \N \N \N \N \N \N \N \N August started with D2-D3 drought conditions (moderate to severe) across the counties listed. Below average rainfall fell during the month, and D2-D3 drought conditions persisted across the counties listed through the end of the month and into September. CSV -201104 4 1027 201104 4 1045 49713 295215 ARKANSAS 5 2011 April Thunderstorm Wind C 35 CRITTENDEN MEG 04-APR-11 10:27:00 CST-6 04-APR-11 10:45:00 0 0 0 0 0.00K Emergency Manager 50 EG \N \N \N 2 NW BRUINS 2 WNW SEYPPEL 34.8964 -90.3564 34.913 -90.3038 A strong low pressure system tracked northeast from Western Kansas into the Great Lakes during the time period from April 2nd-April 4th, 2011. As a result, a trailing cold front moved through the Mid-South during the morning and early afternoon hours of April 4th. A moist and unstable atmosphere was in place ahead of the front creating a favorable environment for thunderstorm development. Numerous showers and thunderstorms formed along the front by mid-morning. Some storms became severe producing large hail, damaging winds, flash flooding and isolated tornadoes. Straight line winds knocked down numerous trees on multiple county roads near Horseshoe Lake. A steeple was blown off a church as well. CSV -201104 4 1045 201104 4 1100 49715 295238 MISSISSIPPI 28 2011 April Thunderstorm Wind C 33 DE SOTO MEG 04-APR-11 10:45:00 CST-6 04-APR-11 11:00:00 0 0 0 0 0.00K Law Enforcement 61 EG \N \N \N 1 WSW HORN LAKE 1 W MINERAL WELLS 34.9586 -90.0522 34.9772 -89.8901 A strong low pressure system tracked northeast from Western Kansas into the Great Lakes during the time period from April 2nd-April 4th, 2011. As a result, a trailing cold front moved through the Mid-South during the morning and early afternoon hours of April 4th. A moist and unstable atmosphere was in place ahead of the front creating a favorable environment for thunderstorm development. Numerous showers and thunderstorms formed along the front by mid-morning. Some storms became severe producing large hail, damaging winds, flash flooding and isolated tornadoes. Straight line winds produced major roof damage to three buildings near Horn Lake. One roof was torn off of a house. Minor shingle damage occurred to several other homes. A fence was blown over, west of Olive Branch. Numerous trees and power lines were knocked down in the area. CSV -201106 9 10 201106 9 10 54151 324761 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 421 OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY DTX 09-JUN-11 00:10:00 EST-5 09-JUN-11 00:10:00 0 0 0 0 0.00K 0.00K C-MAN Station 44 MG \N \N \N 0 N GRAVELLY SHOALS LIGHT 0 N GRAVELLY SHOALS LIGHT 44.02 -83.54 44.02 -83.54 A severe thunderstorm moved through Saginaw Bay, with weaker storms impacting the Nearshore waters of Lake Huron. CSV -201104 4 1050 201104 4 1055 49715 295240 MISSISSIPPI 28 2011 April Hail C 139 TIPPAH MEG 04-APR-11 10:50:00 CST-6 04-APR-11 10:55:00 0 0 0 0 0.00K Trained Spotter 0.75 \N \N \N 2 NW RIPLEY ARPT 2 NW RIPLEY ARPT 34.7357 -89.0385 34.7357 -89.0385 A strong low pressure system tracked northeast from Western Kansas into the Great Lakes during the time period from April 2nd-April 4th, 2011. As a result, a trailing cold front moved through the Mid-South during the morning and early afternoon hours of April 4th. A moist and unstable atmosphere was in place ahead of the front creating a favorable environment for thunderstorm development. Numerous showers and thunderstorms formed along the front by mid-morning. Some storms became severe producing large hail, damaging winds, flash flooding and isolated tornadoes. Penny size hail fell 5 miles west of Ripley on Highway 4. CSV -201106 6 458 201106 6 458 54459 327178 WISCONSIN 55 2011 June Hail C 111 SAUK MKX 06-JUN-11 04:58:00 CST-6 06-JUN-11 04:58:00 0 0 0 0 Law Enforcement 2.75 \N \N \N 1 S NORTH FREEDOM 1 S NORTH FREEDOM 43.4555 -89.87 43.4555 -89.87 Low level warm air advection and moisture transport produced increasing instability over the region as it pushed a surface warm front toward Wisconsin during the early morning hours of June 6th. A cluster of strong to severe elevated thunderstorms formed on the leading edge of the strengthening low-level jet as it veered south-southwest, focusing on southern Wisconsin during the early daylight hours. Moderate elevated instability...steepening mid-level lapse rates and increasing effective bulk shear up to 50 knots supported the development of severe thunderstorms with large hail that affected mainly the northern half of the Milwaukee/Sullivan County Warning Area. CSV -201107 13 2225 201107 13 2225 53302 318839 KANSAS 20 2011 July Hail C 65 GRAHAM GLD 13-JUL-11 22:25:00 CST-6 13-JUL-11 22:25:00 0 0 0 0 0.00K 0.00K Law Enforcement 0.75 \N \N \N 1 NE BOGUE 1 NE BOGUE 39.38 -99.69 39.38 -99.69 A broken line of thunderstorms developed from Oberlin southwest to the Colby area, then moved east to Norton and Hill City during the early evening hours. Hail to golf ball size and wind gusts to 70 mph were report, producing minor tree limb damage. Lightning was also observed to have started a tank battery fire near this location. No estimate of damage has been reported. CSV -201107 13 1530 201107 13 1530 53302 318840 KANSAS 20 2011 July Thunderstorm Wind C 193 THOMAS GLD 13-JUL-11 15:30:00 CST-6 13-JUL-11 15:30:00 0 0 0 0 0.00K 0.00K Trained Spotter 61 EG \N \N \N 3 NE MINGO 3 NE MINGO 39.3107 -100.9303 39.3107 -100.9303 A broken line of thunderstorms developed from Oberlin southwest to the Colby area, then moved east to Norton and Hill City during the early evening hours. Hail to golf ball size and wind gusts to 70 mph were report, producing minor tree limb damage. Minor tree limb damage occurred with winds estimated at 70 mph. CSV -201107 13 1605 201107 13 1605 53302 318841 KANSAS 20 2011 July Hail C 193 THOMAS GLD 13-JUL-11 16:05:00 CST-6 13-JUL-11 16:05:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N MENLO 0 N MENLO 39.35 -100.72 39.35 -100.72 A broken line of thunderstorms developed from Oberlin southwest to the Colby area, then moved east to Norton and Hill City during the early evening hours. Hail to golf ball size and wind gusts to 70 mph were report, producing minor tree limb damage. CSV -201107 8 1815 201107 8 1815 53303 318843 COLORADO 8 2011 July Hail C 63 KIT CARSON GLD 08-JUL-11 18:15:00 MST-7 08-JUL-11 18:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 10 NW BURLINGTON ARPT 10 NW BURLINGTON ARPT 39.42 -102.42 39.42 -102.42 A line of thunderstorms moved east across Yuma and Kit Carson counties during the early evening hours, producing a few hail and wind reports near Burlington, as well as flash flooding near Joes. CSV -201107 8 1850 201107 8 1850 53303 318844 COLORADO 8 2011 July Thunderstorm Wind C 63 KIT CARSON GLD 08-JUL-11 18:50:00 MST-7 08-JUL-11 18:50:00 0 0 0 0 0.00K 0.00K ASOS 53 MG \N \N \N 4 S BURLINGTON 4 S BURLINGTON 39.2412 -102.2819 39.2412 -102.2819 A line of thunderstorms moved east across Yuma and Kit Carson counties during the early evening hours, producing a few hail and wind reports near Burlington, as well as flash flooding near Joes. CSV -201107 8 2301 201107 9 101 53303 318845 COLORADO 8 2011 July Flash Flood C 125 YUMA GLD 08-JUL-11 23:01:00 MST-7 09-JUL-11 01:01:00 0 0 0 0 0.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 5 WNW JOES 3 NW JOES 39.68 -102.77 39.6812 -102.7156 A line of thunderstorms moved east across Yuma and Kit Carson counties during the early evening hours, producing a few hail and wind reports near Burlington, as well as flash flooding near Joes. The emergency manager reports that numerous county roads were under water in this area. CSV -201108 11 1655 201108 11 1655 54876 329644 GEORGIA 13 2011 August Thunderstorm Wind C 161 JEFF DAVIS JAX 11-AUG-11 16:55:00 EST-5 11-AUG-11 16:55:00 0 0 0 0 State Official 50 EG \N \N \N 6 SE HALLS SPUR 6 SE HALLS SPUR 31.87 -82.47 31.87 -82.47 A short wave trough moved across southeast Georgia in the afternoon which ignited scattered severe storms. The sea breezes and outflows provided enough low level convergence and surface instability was high. Widespread wind damage was reported. Trees were blown down along Yawn Road. The time of damage was based on radar. CSV -201108 11 1705 201108 11 1705 54876 329645 GEORGIA 13 2011 August Thunderstorm Wind C 69 COFFEE JAX 11-AUG-11 17:05:00 EST-5 11-AUG-11 17:05:00 0 0 0 0 0.00K 0.00K State Official 50 EG \N \N \N 5 W MORA 5 W MORA 31.42 -83.05 31.42 -83.05 A short wave trough moved across southeast Georgia in the afternoon which ignited scattered severe storms. The sea breezes and outflows provided enough low level convergence and surface instability was high. Widespread wind damage was reported. Trees were blown down along Mora Road and Bridgetown Road. CSV -201106 18 1751 201106 18 1751 54264 326241 GEORGIA 13 2011 June Lightning C 59 CLARKE FFC 18-JUN-11 17:51:00 EST-5 18-JUN-11 17:51:00 0 0 0 0 100.00K 0.00K Newspaper \N \N \N \N 2 ENE WHITEHALL 2 ENE WHITEHALL 33.9136 -83.3372 33.9136 -83.3372 A series of strong short waves were moving across the U.S. These short waves were ejecting from a large upper trough in the western U.S. These vigorous short waves encountered a hot, moist, unstable air mass across the U.S. However, dry mid-level atmosphere air and west to west-northwest flow aloft promoted the development of organized lines of thunderstorms, which produced extensive strong outflow boundaries supporting wind gusts of 50 to 60 mph, even greater in some cases. During the afternoon of the 18th, such thunderstorm gust fronts affected northwest Georgia in particular with widespread damaging wind gusts, likely in excess of 70 mph, blowing down hundreds of trees, dozens of power lines, and causing damage to some structures. This area of thunderstorms progressed southeast toward Atlanta, before dissipating during the mid-evening. Considerable wind damage was noted in the northern and northwestern suburbs of Atlanta from this activity. The Atlanta Journal-Constitution reported that lightning ignited a fire at a residence in Athens located on Ashbrook Drive. Specific details regarding damages were not provided. CSV -201106 21 2140 201106 21 2140 54163 324837 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 422 INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI DTX 21-JUN-11 21:40:00 EST-5 21-JUN-11 21:40:00 0 0 0 0 0.00K 0.00K C-MAN Station 45 MG \N \N \N 0 N SAGINAW BAY LIGHT 0 N SAGINAW BAY LIGHT 43.81 -83.72 43.81 -83.72 A thunderstorm moving through Saginaw Bay produced wind gusts around 50 mph. CSV -201106 21 2200 201106 21 2210 54163 324838 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 421 OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY DTX 21-JUN-11 22:00:00 EST-5 21-JUN-11 22:10:00 0 0 0 0 0.00K 0.00K C-MAN Station 43 MG \N \N \N 0 N GRAVELLY SHOALS LIGHT 0 N GRAVELLY SHOALS LIGHT 44.02 -83.54 44.02 -83.54 A thunderstorm moving through Saginaw Bay produced wind gusts around 50 mph. CSV -201106 17 2127 201106 17 2127 54884 329716 KANSAS 20 2011 June Hail C 171 SCOTT DDC 17-JUN-11 21:27:00 CST-6 17-JUN-11 21:27:00 0 0 0 0 Public 2 \N \N \N 1 W SCOTT CITY 1 W SCOTT CITY 38.48 -100.91 38.48 -100.91 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2140 201106 17 2140 54884 329717 KANSAS 20 2011 June Hail C 55 FINNEY DDC 17-JUN-11 21:40:00 CST-6 17-JUN-11 21:40:00 0 0 0 0 Public 1 \N \N \N 6 SSE TENNIS 6 SSE TENNIS 38.09 -100.86 38.09 -100.86 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2148 201106 17 2148 54884 329718 KANSAS 20 2011 June Hail C 55 FINNEY DDC 17-JUN-11 21:48:00 CST-6 17-JUN-11 21:48:00 0 0 0 0 Public 1.75 \N \N \N 4 ENE TENNIS 4 ENE TENNIS 38.19 -100.85 38.19 -100.85 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2200 201106 17 2200 54884 329719 KANSAS 20 2011 June Hail C 55 FINNEY DDC 17-JUN-11 22:00:00 CST-6 17-JUN-11 22:00:00 0 0 0 0 Law Enforcement 0.75 \N \N \N 2 E HOLCOMB 2 E HOLCOMB 37.98 -100.95 37.98 -100.95 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2240 201106 17 2240 54884 329720 KANSAS 20 2011 June Hail C 69 GRAY DDC 17-JUN-11 22:40:00 CST-6 17-JUN-11 22:40:00 0 0 0 0 Emergency Manager 1.5 \N \N \N 1 N CIMARRON 1 N CIMARRON 37.81 -100.35 37.81 -100.35 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. CSV -201106 17 2048 201106 17 2048 54884 329721 KANSAS 20 2011 June Thunderstorm Wind C 93 KEARNY DDC 17-JUN-11 20:48:00 CST-6 17-JUN-11 20:48:00 0 0 0 0 Public 65 EG \N \N \N 22 NW LAKIN WHITE ARPT 22 NW LAKIN WHITE ARPT 38.21 -101.52 38.21 -101.52 Thunderstorms that developed along a weak cold front in eastern Colorado drifted into the area during the late evening hours. Several three inch diameter tree limbs were blown down by the high wind. CSV -201106 9 1610 201106 9 1615 53953 323222 MAINE 23 2011 June Thunderstorm Wind C 11 KENNEBEC GYX 09-JUN-11 16:10:00 EST-5 09-JUN-11 16:15:00 0 0 0 0 0.00K 0.00K Emergency Manager 50 EG \N \N \N 0 N GARDINER 0 N GARDINER 44.23 -69.77 44.23 -69.77 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed trees in Gardiner. CSV -201106 29 1530 201106 29 1533 54428 326905 MAINE 23 2011 June Thunderstorm Wind C 7 FRANKLIN GYX 29-JUN-11 15:30:00 EST-5 29-JUN-11 15:33:00 0 0 0 0 0.00K 0.00K Law Enforcement 50 EG \N \N \N 0 N FARMINGTON 0 N FARMINGTON 44.67 -70.15 44.67 -70.15 An isolated thunderstorm produced some wind damage in Franklin County. A severe thunderstorm downed trees and wires in Farmington. CSV -201106 22 1700 201106 22 1700 54292 325896 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 421 OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY DTX 22-JUN-11 17:00:00 EST-5 22-JUN-11 17:00:00 0 0 0 0 0.00K 0.00K C-MAN Station 49 MG \N \N \N 0 N GRAVELLY SHOALS LIGHT 0 N GRAVELLY SHOALS LIGHT 44.02 -83.54 44.02 -83.54 A few strong to severe thunderstorms moved through Saginaw Bay and the nearshore waters of southern Lake Huron. CSV -201106 22 1630 201106 22 1630 54292 325897 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 422 INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI DTX 22-JUN-11 16:30:00 EST-5 22-JUN-11 16:30:00 0 0 0 0 0.00K 0.00K C-MAN Station 42 MG \N \N \N 0 N SAGINAW BAY LIGHT 0 N SAGINAW BAY LIGHT 43.81 -83.72 43.81 -83.72 A few strong to severe thunderstorms moved through Saginaw Bay and the nearshore waters of southern Lake Huron. CSV -201106 22 1624 201106 22 1624 54292 325899 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 464 PORT SANILAC TO PORT HURON MI 5NM OFFSHORE TO US/CANADIAN BORDER DTX 22-JUN-11 16:24:00 EST-5 22-JUN-11 16:24:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 0 N LAKEPORT 0 N LAKEPORT 43.12 -82.48 43.12 -82.48 A few strong to severe thunderstorms moved through Saginaw Bay and the nearshore waters of southern Lake Huron. A severe thunderstorm which took down trees in Lakeport tracked into Lake Huron. CSV -201106 22 1625 201106 22 1625 54292 325900 LAKE HURON 90 2011 June Marine Thunderstorm Wind Z 464 PORT SANILAC TO PORT HURON MI 5NM OFFSHORE TO US/CANADIAN BORDER DTX 22-JUN-11 16:25:00 EST-5 22-JUN-11 16:25:00 0 0 0 0 0.00K 0.00K Law Enforcement 52 EG \N \N \N 5 NNW PORT HURON 5 NNW PORT HURON 43.0439 -82.4466 43.0439 -82.4466 A few strong to severe thunderstorms moved through Saginaw Bay and the nearshore waters of southern Lake Huron. A severe thunderstorm over Fort Gratiot tracked into Lake Huron. CSV -201106 22 1625 201106 22 1625 54292 325901 LAKE HURON 90 2011 June Marine Hail Z 464 PORT SANILAC TO PORT HURON MI 5NM OFFSHORE TO US/CANADIAN BORDER DTX 22-JUN-11 16:25:00 EST-5 22-JUN-11 16:25:00 0 0 0 0 0.00K 0.00K Public 1.75 \N \N \N 3 S LAKEPORT 3 S LAKEPORT 43.08 -82.49 43.08 -82.49 A few strong to severe thunderstorms moved through Saginaw Bay and the nearshore waters of southern Lake Huron. A severe thunderstorm which produced golf ball size hail near Fort Gratiot moved into Lake Huron. CSV -201108 22 1625 201108 22 1625 55253 331817 GEORGIA 13 2011 August Thunderstorm Wind C 275 THOMAS TAE 22-AUG-11 16:25:00 EST-5 22-AUG-11 16:25:00 0 0 0 0 5.00K 0.00K Emergency Manager 55 EG \N \N \N 2 NNW METCALF 2 NNW METCALF 30.7244 -83.9902 30.7244 -83.9902 An isolated severe thunderstorm developed in southwest Georgia with northwest flow aloft and an unstable air mass. Numerous trees were blown down near the intersection of Metcalf Road and Horne Cemetery Road. The monetary damage figure provided is a rough estimate. CSV -201105 1 0 201105 31 2359 52262 311833 NEW MEXICO 35 2011 May Drought Z 526 SOUTH CENTRAL MOUNTAINS ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201105 1 0 201105 31 2359 52262 311834 NEW MEXICO 35 2011 May Drought Z 527 RATON RIDGE/JOHNSON MESA ABQ 01-MAY-11 00:00:00 MST-7 31-MAY-11 23:59:00 0 0 0 0 0.00K 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Severe (D2) drought continued across north central New Mexico, however, drought conditions worsened, in some cases rapidly, across the south and east. Extreme (D3) drought conditions continued across the southwest mountains, and portions of west central New Mexico. Extreme (D3) drought developed across portions of northeast and east central New Mexico early in the month, but rapidly increased to exceptional (D4) drought conditions later in the month in some areas. Exceptional drought also developed much of central, south central, and southeast areas. Most of these areas had received less than 20 percent of normal precipitation for the calendar year. The NOAA National Climatic Data Center reported that the first five months of 2011 had been the driest start to any year on record for New Mexico. Statewide precipitation was only 35 percent of normal. As these drought conditions continued to worsen, human caused wildfires continued to pop up across portions of the state. Monetary damages will be estimated at the end of the event. CSV -201106 9 1530 201106 9 1534 53953 323223 MAINE 23 2011 June Thunderstorm Wind C 11 KENNEBEC GYX 09-JUN-11 15:30:00 EST-5 09-JUN-11 15:34:00 0 0 0 0 0.00K 0.00K Fire Department/Rescue 50 EG \N \N \N 0 N BELGRADE 0 N BELGRADE 44.45 -69.83 44.45 -69.83 Broad shortwave crossing southern Canada pushed an associated cold front into southern Canada during the early afternoon. A pre-frontal trough moved into eastern New York during the early afternoon with individual cells and line segments forming into one large squall line with bowing segments. The squall line pushed into central and southern new hampshire by mid afternoon and reached the coast by early evening. Good heating ahead of this line with dew points in the upper 60s to lower 70s resulted in capes of 1500 to 3000 j/kg across much of the region. Although shear was limited, stronger cells moving around 35 kts transported strong mid level winds to the surface resulting in numerous reports of wind damage. Stronger cells also produced quarter to golf ball size hail. One long lived cell in Kennebec County produced hail at least 3 inches in diameter. A severe thunderstorm downed trees on Route 135 west of Belgrade. CSV -201106 29 1400 201106 29 1415 54535 327501 IDAHO 16 2011 June Thunderstorm Wind C 19 BONNEVILLE PIH 29-JUN-11 14:00:00 MST-7 29-JUN-11 14:15:00 0 0 0 0 0.00K 0.00K Broadcast Media 56 EG \N \N \N 0 N IONA 0 N IONA 43.53 -111.93 43.53 -111.93 Trees were downed in Pocatello and Iona on June 29th from microburst winds. Large oak tree downed in Iona. CSV -201106 1 100 201106 30 2300 54587 327703 IDAHO 16 2011 June Flood C 65 MADISON PIH 01-JUN-11 01:00:00 MST-7 30-JUN-11 23:00:00 0 0 0 0 2.00K 0.00K Emergency Manager \N Heavy Rain / Snow Melt \N \N \N 7 W REXBURG 7 N REXBURG 43.82 -111.9204 43.9213 -111.78 The Henry's Fork near Rexburg was above flood stage from June 1st through June 30th with the exception of the period from June 4th through the morning of June 7th. Major flood stage was reached and crested at 11.85 feet on June 9th. Extensive flooding of agricultural and low lands occurred. Beaver Dick Park flooded, river access recreation areas flooded as did portions of county roads. Water covered a road in the Warm Slough Access to a depth of over one foot. Water flooded the crawl space to one home. The Henry's Fork near Rexburg was above flood stage from June 1st through June 30th with the exception of the period from June 4th through the morning of June 7th. Major flood stage was reached and crested at 11.85 feet on June 9th. Extensive flooding of agricultural and low lands occurred. Beaver Dick Park flooded, river access recreation areas flooded as did portions of county roads. Water covered a road in the Warm Slough Access to a depth of over one foot. Water flooded the crawl space to one home. CSV -201106 27 1200 201106 28 1800 54255 329180 ARIZONA 4 2011 June Heat Z 502 TOHONO O ODHAM NATION TWC 27-JUN-11 12:00:00 MST-7 28-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N Strong high pressure and very dry air mass resulted in abnormally hot daytime temperatures across all of southern Arizona. Well above normal daytime temperatures settled over southern Arizona on June 27 and 28. On June 27th, a record 112 degrees was recorded at the Tucson ASOS. Several valley locations below four thousand feet reached heat criteria levels. Heat criteria was also reached in the higher elevations. The Chiricahua National Monument (5133 ft) recorded a high temperature of 102 degrees. CSV -201106 27 1200 201106 28 1800 54255 329181 ARIZONA 4 2011 June Heat Z 503 UPPER SANTA CRUZ RIVER AND ALTAR VALLEYS TWC 27-JUN-11 12:00:00 MST-7 28-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N Strong high pressure and very dry air mass resulted in abnormally hot daytime temperatures across all of southern Arizona. Well above normal daytime temperatures settled over southern Arizona on June 27 and 28. On June 27th, a record 112 degrees was recorded at the Tucson ASOS. Several valley locations below four thousand feet reached heat criteria levels. Heat criteria was also reached in the higher elevations. The Chiricahua National Monument (5133 ft) recorded a high temperature of 102 degrees. CSV -201106 27 1200 201106 28 1800 54255 329182 ARIZONA 4 2011 June Heat Z 504 TUCSON METRO AREA TWC 27-JUN-11 12:00:00 MST-7 28-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K Mesonet \N \N \N \N \N \N \N \N \N \N Strong high pressure and very dry air mass resulted in abnormally hot daytime temperatures across all of southern Arizona. Well above normal daytime temperatures settled over southern Arizona on June 27 and 28. On June 27th, a record 112 degrees was recorded at the Tucson ASOS. Several valley locations below four thousand feet reached heat criteria levels. Heat criteria was also reached in the higher elevations. The Chiricahua National Monument (5133 ft) recorded a high temperature of 102 degrees. CSV -201108 8 1405 201108 8 1405 55251 331798 ALABAMA 1 2011 August Thunderstorm Wind C 67 HENRY TAE 08-AUG-11 14:05:00 CST-6 08-AUG-11 14:05:00 0 0 0 0 4.00K 0.00K Emergency Manager 50 EG \N \N \N 2 SSW DOUBLE BRIDGES 2 SSE OTHO 31.6724 -85.1609 31.6527 -85.1053 A weak upper level trough combined with a moist and unstable air mass to produce isolated severe thunderstorms across southeast Alabama. Several trees and a power line were blown down from one mile west of county road 93 to near the Hardridge Creek area about three miles north of county road 97. The monetary damage figure provided is a rough estimate. CSV -201106 20 1759 201106 20 1759 53576 320924 KANSAS 20 2011 June Thunderstorm Wind C 15 BUTLER ICT 20-JUN-11 17:59:00 CST-6 20-JUN-11 17:59:00 0 0 0 0 0.00K 0.00K Emergency Manager 52 EG \N \N \N 1 E ROSE HILL 1 E ROSE HILL 37.57 -97.11 37.57 -97.11 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 1800 201106 20 1800 53576 320925 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 18:00:00 CST-6 20-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 3 E ROSE HILL 3 E ROSE HILL 37.57 -97.08 37.57 -97.08 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1801 201106 20 1801 53576 320926 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 18:01:00 CST-6 20-JUN-11 18:01:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.88 \N \N \N 1 E DOUGLASS 1 E DOUGLASS 37.52 -97.01 37.52 -97.01 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1803 201106 20 1803 53576 320927 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 18:03:00 CST-6 20-JUN-11 18:03:00 0 0 0 0 0.00K 0.00K Amateur Radio 1 \N \N \N 1 E DOUGLASS 1 E DOUGLASS 37.52 -97.01 37.52 -97.01 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1803 201106 20 1803 53576 320928 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 18:03:00 CST-6 20-JUN-11 18:03:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 2 WNW AUGUSTA 2 WNW AUGUSTA 37.69 -97.01 37.69 -97.01 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1805 201106 20 1805 53576 320929 KANSAS 20 2011 June Hail C 15 BUTLER ICT 20-JUN-11 18:05:00 CST-6 20-JUN-11 18:05:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.88 \N \N \N 4 NW DOUGLASS 4 NW DOUGLASS 37.56 -97.06 37.56 -97.06 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201105 10 2113 201105 10 2117 50729 299298 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 21:13:00 EST-5 10-MAY-11 21:17:00 0 0 0 0 Broadcast Media 1 \N \N \N 3 N THRIFTON 3 N THRIFTON 39.3699 -83.367 39.3699 -83.367 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 2225 201105 10 2229 50729 299299 OHIO 39 2011 May Hail C 141 ROSS ILN 10-MAY-11 22:25:00 EST-5 10-MAY-11 22:29:00 0 0 0 0 Trained Spotter 1.75 \N \N \N 5 NW BAINBRIDGE 5 NW BAINBRIDGE 39.2812 -83.3361 39.2812 -83.3361 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1812 201105 10 1816 50728 299304 KENTUCKY 21 2011 May Hail C 161 MASON ILN 10-MAY-11 18:12:00 EST-5 10-MAY-11 18:16:00 0 0 0 0 Trained Spotter 1 \N \N \N 0 N MAYSVILLE 0 N MAYSVILLE 38.65 -83.75 38.65 -83.75 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 1827 201105 10 1831 50728 299306 KENTUCKY 21 2011 May Hail C 135 LEWIS ILN 10-MAY-11 18:27:00 EST-5 10-MAY-11 18:31:00 0 0 0 0 Public 0.88 \N \N \N 0 N EPWORTH 0 N EPWORTH 38.52 -83.58 38.52 -83.58 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201105 10 2307 201105 10 2311 50729 299314 OHIO 39 2011 May Hail C 1 ADAMS ILN 10-MAY-11 23:07:00 EST-5 10-MAY-11 23:11:00 0 0 0 0 Public 1 \N \N \N 0 N PEEBLES 0 N PEEBLES 38.95 -83.4 38.95 -83.4 A very unstable airmass was in place south of a warm front in the area. This unstable airmass led to the development of widespread severe weather. CSV -201108 9 1542 201108 9 1542 55251 331800 ALABAMA 1 2011 August Thunderstorm Wind C 45 DALE TAE 09-AUG-11 15:42:00 CST-6 09-AUG-11 15:42:00 0 0 0 0 1.50K 0.00K Emergency Manager 50 EG \N \N \N 1 NE HIGHWAY 231 PEA RIVER BRIDGE 1 NE HIGHWAY 231 PEA RIVER BRIDGE 31.6 -85.77 31.6 -85.77 A weak upper level trough combined with a moist and unstable air mass to produce isolated severe thunderstorms across southeast Alabama. A couple of trees were blown down near the Coffee-Dale county line. The monetary damage figure provided is a rough estimate. CSV -201108 9 1640 201108 9 1640 55251 331802 ALABAMA 1 2011 August Thunderstorm Wind C 69 HOUSTON TAE 09-AUG-11 16:40:00 CST-6 09-AUG-11 16:40:00 0 0 0 0 5.00K 0.00K Emergency Manager 50 EG \N \N \N 0 N DOTHAN 0 N DOTHAN 31.22 -85.39 31.22 -85.39 A weak upper level trough combined with a moist and unstable air mass to produce isolated severe thunderstorms across southeast Alabama. A tree was blown down onto a house in downtown Dothan. The monetary damage figure provided is a rough estimate. CSV -201108 9 1601 201108 9 1601 55251 331807 ALABAMA 1 2011 August Thunderstorm Wind C 45 DALE TAE 09-AUG-11 16:01:00 CST-6 09-AUG-11 16:01:00 0 0 0 0 Trained Spotter 52 EG \N \N \N 3 NW OZARK 3 NW OZARK 31.4707 -85.676 31.4707 -85.676 A weak upper level trough combined with a moist and unstable air mass to produce isolated severe thunderstorms across southeast Alabama. A spotter estimated a wind gust of 60 mph. CSV -201106 11 1715 201106 11 1715 54834 329422 KANSAS 20 2011 June Thunderstorm Wind C 67 GRANT DDC 11-JUN-11 17:15:00 CST-6 11-JUN-11 17:15:00 0 0 0 0 Emergency Manager 70 EG \N \N \N 7 NW ULYSSES ARPT 7 NW ULYSSES ARPT 37.68 -101.45 37.68 -101.45 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. Windows were blown out of the house by the high wind. CSV -201104 26 1745 201104 26 1750 50307 300798 MISSISSIPPI 28 2011 April Thunderstorm Wind C 143 TUNICA MEG 26-APR-11 17:45:00 CST-6 26-APR-11 17:50:00 0 0 0 0 50.00K 0.00K Broadcast Media 50 EG \N \N \N 1 WSW DUBBS 0 N DUBBS 34.5646 -90.3801 34.57 -90.37 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Straight line winds overturned multiple irrigation pivots near Dubbs. CSV -201104 27 1359 201104 27 1402 50307 303242 MISSISSIPPI 28 2011 April Tornado C 115 PONTOTOC MEG 27-APR-11 13:59:00 CST-6 27-APR-11 14:02:00 0 0 0 0 100.00K 0.00K NWS Storm Survey \N EF0 1.02 75 \N 0 W ENDVILLE 1 ENE ENDVILLE 34.3202 -88.8848 34.3259 -88.8683 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. A weak tornado touched down near Endville Road, just southeast of Endville, and moved northeast. A couple of homes sustained minor damage. Numerous trees were knocked down. The tornado lifted near Martin Road. CSV -201104 27 1345 201104 27 1355 50307 303244 MISSISSIPPI 28 2011 April Thunderstorm Wind C 13 CALHOUN MEG 27-APR-11 13:45:00 CST-6 27-APR-11 13:55:00 0 0 0 0 0.00K Public 50 EG \N \N \N 0 N CALHOUN CITY 1 NE CALHOUN CITY 33.85 -89.32 33.8608 -89.3044 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Straight line winds knocked large tree limbs down in Calhoun City. CSV -201106 26 2241 201106 26 2241 54109 324381 MISSOURI 29 2011 June Thunderstorm Wind C 61 DAVIESS EAX 26-JUN-11 22:41:00 CST-6 26-JUN-11 22:41:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 1 SE GALLATIN 1 SE GALLATIN 39.91 -93.96 39.91 -93.96 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Numerous trees reported down in Gallatin, with power out. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2252 201106 26 2252 54109 324385 MISSOURI 29 2011 June Thunderstorm Wind C 25 CALDWELL EAX 26-JUN-11 22:52:00 CST-6 26-JUN-11 22:52:00 0 0 0 0 0.00K 0.00K Public 52 EG \N \N \N 1 N BRAYMER 1 N BRAYMER 39.59 -93.8 39.59 -93.8 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 26 2255 201106 26 2255 54109 324388 MISSOURI 29 2011 June Thunderstorm Wind C 1 ADAIR EAX 26-JUN-11 22:55:00 CST-6 26-JUN-11 22:55:00 0 0 0 0 0.00K 0.00K Trained Spotter 61 EG \N \N \N 3 WSW DANFORTH 3 WSW DANFORTH 40.23 -92.78 40.23 -92.78 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gusts were estimated up to 70 mph. CSV -201106 26 2308 201106 26 2308 54109 324400 MISSOURI 29 2011 June Thunderstorm Wind C 211 SULLIVAN EAX 26-JUN-11 23:08:00 CST-6 26-JUN-11 23:08:00 0 0 0 0 0.00K 0.00K Trained Spotter 62 MG \N \N \N 0 N MILAN 0 N MILAN 40.2 -93.12 40.2 -93.12 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gust was measured at 71 mph. CSV -201106 26 2254 201106 26 2254 54109 324403 MISSOURI 29 2011 June Thunderstorm Wind C 211 SULLIVAN EAX 26-JUN-11 22:54:00 CST-6 26-JUN-11 22:54:00 0 0 0 0 0.00K 0.00K Trained Spotter 62 MG \N \N \N 0 N MILAN 0 N MILAN 40.2 -93.12 40.2 -93.12 A warm front, combined with an upper level disturbance, caused a squall line to move east across the area, during the evening hours of June 26, 2011. Damaging winds and large hail were reported. Thunderstorm wind gust was measured at 71 mph. CSV -201104 26 1750 201104 26 1800 50307 300803 MISSISSIPPI 28 2011 April Hail C 27 COAHOMA MEG 26-APR-11 17:50:00 CST-6 26-APR-11 18:00:00 0 0 0 0 0.00K Emergency Manager 2.75 \N \N \N 1 SE FARRELL 2 N CLARKSDALE 34.2622 -90.6722 34.229 -90.58 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Golf ball to baseball size hail fell between Farrell to just north of Clarksdale. CSV -201104 26 2300 201104 27 300 50307 301139 MISSISSIPPI 28 2011 April Flash Flood C 143 TUNICA MEG 26-APR-11 23:00:00 CST-6 27-APR-11 03:00:00 0 0 0 0 0.00K 0.00K Emergency Manager \N Heavy Rain \N \N \N 1 SE COMMERCE 2 S MHOON 34.8096 -90.3698 34.6988 -90.4285 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Heavy rain produced widespread flash flooding around Tunica County. Numerous roads were closed as a result including School Street, Josephine Road, Dulaney Road, and Robin Cove. CSV -201104 1 0 201104 30 2359 51216 303695 ARKANSAS 5 2011 April Drought Z 58 PHILLIPS MEG 01-APR-11 00:00:00 CST-6 30-APR-11 23:59:00 0 0 0 0 0.00K Other Federal Agency \N \N \N \N \N \N \N \N \N \N Above normal rainfall by the end of April ended the drought across Phillips County. The severe (D2) drought conditions ended across the area. CSV -201104 27 745 201104 27 1400 50307 303705 MISSISSIPPI 28 2011 April Flash Flood C 3 ALCORN MEG 27-APR-11 07:45:00 CST-6 27-APR-11 14:00:00 0 0 0 0 0.00K 0.00K Trained Spotter \N Heavy Rain \N \N \N 2 ENE CORINTH TURNER ARPT 1 E WENASOGA 34.9091 -88.5635 34.9811 -88.558 A stationary front remained draped across Southern Missouri into Western Kentucky from April 24th, 2011 into April 25th, 2011. A very warm and unstable atmosphere was in place across the Mid-South ahead of the front. A low pressure system developed along the front and interacted with the unstable environment which helped produce several rounds of severe storms into the evening of April 26th, 2011. As a result of the severe storms, the front sank south during the early morning hours of April 27th, 2011 as a secondary low pressure system developed along the front. As a result, another round of severe storms fired during the afternoon hours ahead of the low pressure center. Additional severe storms fired along the trailing cold front. Tornadoes, large hail, damaging winds, flash flooding occurred as a result of the severe storms. Heavy rain produced flash flooding in Corinth. Numerous streets were closed as a result. CSV -201106 20 1937 201106 20 1937 53576 320967 KANSAS 20 2011 June Hail C 49 ELK ICT 20-JUN-11 19:37:00 CST-6 20-JUN-11 19:37:00 0 0 0 0 0.00K 0.00K Emergency Manager 0.75 \N \N \N 0 N GRENOLA 0 N GRENOLA 37.35 -96.45 37.35 -96.45 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 1959 201106 20 1959 53576 320968 KANSAS 20 2011 June Hail C 19 CHAUTAUQUA ICT 20-JUN-11 19:59:00 CST-6 20-JUN-11 19:59:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 1 N CEDAR VALE 1 N CEDAR VALE 37.11 -96.5 37.11 -96.5 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 2003 201106 20 2003 53576 320969 KANSAS 20 2011 June Hail C 19 CHAUTAUQUA ICT 20-JUN-11 20:03:00 CST-6 20-JUN-11 20:03:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 N CEDAR VALE 1 N CEDAR VALE 37.11 -96.5 37.11 -96.5 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 2014 201106 20 2014 53576 320970 KANSAS 20 2011 June Hail C 19 CHAUTAUQUA ICT 20-JUN-11 20:14:00 CST-6 20-JUN-11 20:14:00 0 0 0 0 0.00K 0.00K Law Enforcement 1 \N \N \N 1 N CEDAR VALE 1 N CEDAR VALE 37.11 -96.5 37.11 -96.5 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 20 2015 201106 20 2015 53576 320971 KANSAS 20 2011 June Thunderstorm Wind C 207 WOODSON ICT 20-JUN-11 20:15:00 CST-6 20-JUN-11 20:15:00 0 0 0 0 0.00K 0.00K Trained Spotter 52 EG \N \N \N 2 NE TORONTO 2 NE TORONTO 37.82 -95.92 37.82 -95.92 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Estimated gust reported by a trained spotter. CSV -201106 20 2034 201106 20 2034 53576 320972 KANSAS 20 2011 June Thunderstorm Wind C 19 CHAUTAUQUA ICT 20-JUN-11 20:34:00 CST-6 20-JUN-11 20:34:00 0 0 0 0 0.00K 0.00K Law Enforcement 61 EG \N \N \N 0 N CHAUTAUQUA 0 N CHAUTAUQUA 37.02 -96.18 37.02 -96.18 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. Nickel sized hail was also reported. CSV -201106 20 2034 201106 20 2034 53576 320973 KANSAS 20 2011 June Hail C 207 WOODSON ICT 20-JUN-11 20:34:00 CST-6 20-JUN-11 20:34:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 1 SW YATES CENTER 1 SW YATES CENTER 37.87 -95.74 37.87 -95.74 A Squall Line developed along the Interstate 135 corridor around 3 pm on the 20th and moved east through the evening into Southeast Kansas. The storms were pretty potent as they produced widespread hail and damaging winds across the eastern one half of the state. CSV -201106 6 1245 201106 6 1245 52098 310558 LOUISIANA 22 2011 June Thunderstorm Wind C 103 ST. TAMMANY LIX 06-JUN-11 12:45:00 CST-6 06-JUN-11 12:45:00 0 0 0 0 5.00K 0.00K NWS Employee 55 EG \N \N \N 1 NE NORTH SLIDELL 1 NE NORTH SLIDELL 30.3113 -89.7694 30.3113 -89.7694 An upper low centered near the Louisiana coast combined with hot and unstable air allowed the development of scattered severe thunderstorms during the heat of the afternoon. Damage was observed to a sign and other minor property damage at a gas station on Brownswitch Road near U.S. Highway 11. CSV -201106 11 1705 201106 11 1705 54834 329421 KANSAS 20 2011 June Thunderstorm Wind C 67 GRANT DDC 11-JUN-11 17:05:00 CST-6 11-JUN-11 17:05:00 0 0 0 0 Emergency Manager 65 EG \N \N \N 7 SSE STANO STATION 7 SSE STANO STATION 37.47 -101.45 37.47 -101.45 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. A power pole was blown down by the high wind. CSV -201106 11 1720 201106 11 1720 54834 329423 KANSAS 20 2011 June Thunderstorm Wind C 93 KEARNY DDC 11-JUN-11 17:20:00 CST-6 11-JUN-11 17:20:00 0 0 0 0 Emergency Manager 52 EG \N \N \N 15 SSW LAKIN 15 SSW LAKIN 37.76 -101.37 37.76 -101.37 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. A semi truck was blown over at a location 2 miles north of the Grant and Kearny county line on K25. CSV -201106 11 1530 201106 11 1530 54834 329424 KANSAS 20 2011 June Thunderstorm Wind C 33 COMANCHE DDC 11-JUN-11 15:30:00 CST-6 11-JUN-11 15:30:00 0 0 0 0 Public 61 EG \N \N \N 9 WSW BUTTERMILK 9 WSW BUTTERMILK 37.06 -99.49 37.06 -99.49 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. Winds were estimated to be 70 MPH. CSV -201106 11 1705 201106 11 1705 54834 329426 KANSAS 20 2011 June Thunderstorm Wind C 67 GRANT DDC 11-JUN-11 17:05:00 CST-6 11-JUN-11 17:05:00 0 0 0 0 Public 74 EG \N \N \N 2 NNW STANO STATION 2 NNW STANO STATION 37.6 -101.51 37.6 -101.51 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. Hail the size of quarters also fell with the high wind. CSV -201106 11 1715 201106 11 1715 54834 329428 KANSAS 20 2011 June Thunderstorm Wind C 67 GRANT DDC 11-JUN-11 17:15:00 CST-6 11-JUN-11 17:15:00 0 0 0 0 AWOS 52 MG \N \N \N 1 E ULYSSES 1 E ULYSSES 37.58 -101.36 37.58 -101.36 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. CSV -201106 11 1820 201106 11 1820 54834 329429 KANSAS 20 2011 June Thunderstorm Wind C 101 LANE DDC 11-JUN-11 18:20:00 CST-6 11-JUN-11 18:20:00 0 0 0 0 Public 61 EG \N \N \N 1 E SHIELDS 1 E SHIELDS 38.62 -100.43 38.62 -100.43 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. Winds were estimated to be 60 to 80 MPH. CSV -201106 11 1819 201106 11 1819 54834 329431 KANSAS 20 2011 June Thunderstorm Wind C 55 FINNEY DDC 11-JUN-11 18:19:00 CST-6 11-JUN-11 18:19:00 0 0 0 0 Storm Chaser 56 MG \N \N \N 1 NE (GCK)GARDEN CITY ARPT 1 NE (GCK)GARDEN CITY ARPT 37.94 -100.72 37.94 -100.72 An upper level short wave trough and a warm front draped across the region helped generate widespread thunderstorms, many of which became severe. The strong winds were along an outflow boundary associated with a well defined shelf cloud. CSV -201105 21 2013 201105 21 2013 52007 309909 MISSOURI 29 2011 May Hail C 79 GRUNDY EAX 21-MAY-11 20:13:00 CST-6 21-MAY-11 20:13:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 0 N TRENTON ARPT 0 N TRENTON ARPT 40.08 -93.6 40.08 -93.6 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 2014 201105 21 2014 52007 309910 MISSOURI 29 2011 May Hail C 21 BUCHANAN EAX 21-MAY-11 20:14:00 CST-6 21-MAY-11 20:14:00 0 0 0 0 0.00K 0.00K Trained Spotter 1 \N \N \N 3 S FAUCETT FARRIS ARPT 3 S FAUCETT FARRIS ARPT 39.54 -94.79 39.54 -94.79 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 2101 201105 21 2101 52007 309911 MISSOURI 29 2011 May Hail C 79 GRUNDY EAX 21-MAY-11 21:01:00 CST-6 21-MAY-11 21:01:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.88 \N \N \N 3 SSW DUNLAP 3 SSW DUNLAP 40.08 -93.51 40.08 -93.51 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 2055 201105 21 2055 52007 309913 MISSOURI 29 2011 May Hail C 79 GRUNDY EAX 21-MAY-11 20:55:00 CST-6 21-MAY-11 20:55:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.88 \N \N \N 3 SSW DUNLAP 3 SSW DUNLAP 40.08 -93.51 40.08 -93.51 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 2101 201105 21 2101 52007 309914 MISSOURI 29 2011 May Hail C 79 GRUNDY EAX 21-MAY-11 21:01:00 CST-6 21-MAY-11 21:01:00 0 0 0 0 0.00K 0.00K COOP Observer 0.88 \N \N \N 1 W GALT 1 W GALT 40.13 -93.39 40.13 -93.39 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201105 21 2203 201105 21 2203 52007 309915 MISSOURI 29 2011 May Hail C 165 PLATTE EAX 21-MAY-11 22:03:00 CST-6 21-MAY-11 22:03:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.75 \N \N \N 1 N PLATTE WOODS 1 N PLATTE WOODS 39.24 -94.67 39.24 -94.67 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. CSV -201106 8 1936 201106 8 1936 54125 324466 KANSAS 20 2011 June Hail C 95 KINGMAN ICT 08-JUN-11 19:36:00 CST-6 08-JUN-11 19:36:00 0 0 0 0 Trained Spotter 1 \N \N \N 1 S CUNNINGHAM 1 S CUNNINGHAM 37.64 -98.43 37.64 -98.43 A cluster of strong to severe thunderstorms affected south-central Kansas during the mid-evening hours on the 8th, producing hail up to ping-pong ball size in Reno county. As the storms collapsed during the late evening hours on the 8th through the early morning hours on the 9th, very strong winds up to 70 mph were recorded across the Wichita area due to evaporative cooling effects from the collapsing storms. As a side note, environmental conditions were just right to produce a relatively rare heat burst across the Wichita area. Temperatures quickly rose from 85 to around 102 degrees. CSV -201106 8 1947 201106 8 1947 54125 324467 KANSAS 20 2011 June Hail C 155 RENO ICT 08-JUN-11 19:47:00 CST-6 08-JUN-11 19:47:00 0 0 0 0 Trained Spotter 1.5 \N \N \N 7 S LANGDON 7 S LANGDON 37.75 -98.3 37.75 -98.3 A cluster of strong to severe thunderstorms affected south-central Kansas during the mid-evening hours on the 8th, producing hail up to ping-pong ball size in Reno county. As the storms collapsed during the late evening hours on the 8th through the early morning hours on the 9th, very strong winds up to 70 mph were recorded across the Wichita area due to evaporative cooling effects from the collapsing storms. As a side note, environmental conditions were just right to produce a relatively rare heat burst across the Wichita area. Temperatures quickly rose from 85 to around 102 degrees. CSV -201106 4 1525 201106 4 1525 54128 324475 KANSAS 20 2011 June Hail C 115 MARION ICT 04-JUN-11 15:25:00 CST-6 04-JUN-11 15:25:00 0 0 0 0 0.00K 0.00K Trained Spotter 0.88 \N \N \N 0 N HILLSBORO 0 N HILLSBORO 38.35 -97.2 38.35 -97.2 A few strong to severe thunderstorms affected east-central Kansas during the late afternoon hours on the 4th, producing marginally severe hail across Marion county. CSV -201106 11 1425 201106 11 1425 54057 323881 VIRGINIA 51 2011 June Hail C 67 FRANKLIN RNK 11-JUN-11 14:25:00 EST-5 11-JUN-11 14:25:00 0 0 0 0 5.00K 0.00K Public 1.5 \N \N \N 3 N GLADE HILL 3 ENE REDWOOD 37.02 -79.77 37.03 -79.77 Early morning convection developed along an outflow boundary in advance of an approaching cold front. By the afternoon, strong to severe storms occurred as increasing temperatures helped to destabilize the atmosphere even further. A mixture of damaging winds and large hail occurred. Hail ranging from quarter to ping pong ball size occurred along Webster Road. Damage values are estimated. CSV -201106 11 1435 201106 11 1435 54057 323882 VIRGINIA 51 2011 June Thunderstorm Wind C 67 FRANKLIN RNK 11-JUN-11 14:35:00 EST-5 11-JUN-11 14:35:00 0 0 0 0 5.40K 0.00K Trained Spotter 55 EG \N \N \N 3 SSW BURNT CHIMNEY 3 SSW BURNT CHIMNEY 37.06 -79.84 37.06 -79.84 Early morning convection developed along an outflow boundary in advance of an approaching cold front. By the afternoon, strong to severe storms occurred as increasing temperatures helped to destabilize the atmosphere even further. A mixture of damaging winds and large hail occurred. Thunderstorm wind blew five to six trees down. Damage values are estimated. CSV -201106 11 1515 201106 11 1515 54057 323883 VIRGINIA 51 2011 June Hail C 143 PITTSYLVANIA RNK 11-JUN-11 15:15:00 EST-5 11-JUN-11 15:15:00 0 0 0 0 Public 1 \N \N \N 1 SW AJAX 1 SW AJAX 36.96 -79.58 36.96 -79.58 Early morning convection developed along an outflow boundary in advance of an approaching cold front. By the afternoon, strong to severe storms occurred as increasing temperatures helped to destabilize the atmosphere even further. A mixture of damaging winds and large hail occurred. CSV -201106 24 1840 201106 24 1855 54421 327860 GEORGIA 13 2011 June Hail C 77 COWETA FFC 24-JUN-11 18:40:00 EST-5 24-JUN-11 18:55:00 0 0 0 0 0.00K 0.00K Amateur Radio 0.75 \N \N \N 0 N THOMAS XRDS 4 SE THOMAS XRDS 33.4 -84.68 33.3591 -84.631 A persistent and strong subtropical ridge centered across the Southern Plains continued to provide Georgia with an unstable northwest flow aloft. A series of upper-level disturbances were embedded within the flow, each generating rounds of thunderstorms across the Tennessee Valley which progressively moved southeast into Georgia. This pattern remained in place through much of June and into early July, for that matter. A quasi-stationary front extended westward from the Carolinas and Tennessee westward into Oklahoma. Numerous convective outflow boundaries were noted throughout the Tennessee Valley and the Carolinas. A complex of thunderstorms moved into north Georgia during the mid-afternoon and steadily propagated southward into central Georgia during the evening before diminishing. Many reports of damaging wind and some hail were reported during this event. An amateur radio operator relayed a report of intermittent penny-sized hail from the Thomas Crossroads area. CSV -201106 27 1010 201106 27 1015 54631 328054 GEORGIA 13 2011 June Thunderstorm Wind C 263 TALBOT FFC 27-JUN-11 10:10:00 EST-5 27-JUN-11 10:15:00 0 0 0 0 10.00K 0.00K Utility Company 50 EG \N \N \N 1 NW WOODLAND 0 NW PLEASANT HILL 32.7902 -84.5622 32.8 -84.5 A strong subtropical ridge remained across the Southern Plains and was beginning to expand slightly eastward into the Mid-South. However, a weak upper trough lingered across central Georgia. Numerous outflow boundaries remained across the area from overnight thunderstorms. With a moist, unstable, hot atmosphere remaining in place, scattered thunderstorms were once again the rule. However, most of the activity on this day was confined to west central, southwest, and the western parts of Middle Georgia. Upson Electric Management Cooperative reported that a number of trees and at least a dozen power lines were down in the northeast part of the county where a thunderstorm microburst had apparently occurred. Power lines and trees were down on Harvey Ingram Road, Mountain Valley Road, and Georgia Highway 36 northeast of Woodland. CSV -201106 27 1439 201106 27 1450 54631 328057 GEORGIA 13 2011 June Hail C 285 TROUP FFC 27-JUN-11 14:39:00 EST-5 27-JUN-11 14:50:00 0 0 0 0 0.00K 0.00K Public 0.75 \N \N \N 2 E BIG SPG 3 SE BIG SPG 33 -84.8707 32.9667 -84.8604 A strong subtropical ridge remained across the Southern Plains and was beginning to expand slightly eastward into the Mid-South. However, a weak upper trough lingered across central Georgia. Numerous outflow boundaries remained across the area from overnight thunderstorms. With a moist, unstable, hot atmosphere remaining in place, scattered thunderstorms were once again the rule. However, most of the activity on this day was confined to west central, southwest, and the western parts of Middle Georgia. The public observed penny-sized hail hail in the far eastern part of the county near Big Springs and the Meriwether county line along Interstate-185 north of Exit Number 42. CSV -201106 6 1332 201106 6 1334 54592 327846 ALABAMA 1 2011 June Hail C 3 BALDWIN MOB 06-JUN-11 13:32:00 CST-6 06-JUN-11 13:34:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 0 N SUMMERDALE 0 N SUMMERDALE 30.48 -87.7 30.48 -87.7 Thunderstorms developed during the afternoon hours and produced large hail across portions of southwest Alabama. CSV -201106 9 0 201106 9 4 54125 324473 KANSAS 20 2011 June High Wind Z 83 SEDGWICK ICT 09-JUN-11 00:00:00 CST-6 09-JUN-11 00:04:00 0 0 0 0 ASOS 54 MG \N \N \N \N \N \N \N \N \N A cluster of strong to severe thunderstorms affected south-central Kansas during the mid-evening hours on the 8th, producing hail up to ping-pong ball size in Reno county. As the storms collapsed during the late evening hours on the 8th through the early morning hours on the 9th, very strong winds up to 70 mph were recorded across the Wichita area due to evaporative cooling effects from the collapsing storms. As a side note, environmental conditions were just right to produce a relatively rare heat burst across the Wichita area. Temperatures quickly rose from 85 to around 102 degrees. Collapsing thunderstorms during the late evening hours on the 8th through the early morning hours on the 9th produced very strong winds near 60 mph across southeast Wichita and also the Derby area, due to evaporative cooling effects from the collapsing storms. A wind gust to 62 mph was measured at McConnell Airforce Base. CSV -201106 10 1733 201106 10 1733 54270 325607 KANSAS 20 2011 June Hail C 207 WOODSON ICT 10-JUN-11 17:33:00 CST-6 10-JUN-11 17:33:00 0 0 0 0 Amateur Radio 0.75 \N \N \N 0 N TORONTO 0 N TORONTO 37.8 -95.95 37.8 -95.95 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. CSV -201106 10 1812 201106 10 1812 54270 325608 KANSAS 20 2011 June Hail C 207 WOODSON ICT 10-JUN-11 18:12:00 CST-6 10-JUN-11 18:12:00 0 0 0 0 Trained Spotter 1 \N \N \N 8 S YATES CENTER 8 S YATES CENTER 37.76 -95.74 37.76 -95.74 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. CSV -201106 10 1814 201106 10 1814 54270 325609 KANSAS 20 2011 June Hail C 207 WOODSON ICT 10-JUN-11 18:14:00 CST-6 10-JUN-11 18:14:00 0 0 0 0 Public 1.75 \N \N \N 11 SE YATES CENTER 11 SE YATES CENTER 37.75 -95.62 37.75 -95.62 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. CSV -201106 10 1832 201106 10 1832 54270 325610 KANSAS 20 2011 June Hail C 1 ALLEN ICT 10-JUN-11 18:32:00 CST-6 10-JUN-11 18:32:00 0 0 0 0 Public 1 \N \N \N 1 SW PETROLIA 1 SW PETROLIA 37.74 -95.48 37.74 -95.48 Scattered strong to severe thunderstorms affected southeast Kansas during the evening hours on the 10th, along and ahead of a cold front approaching from the northwest. Some of the more notable reports include golfball size hail southeast of Yates Center in Woodson County, and estimated 70 to 80 mph winds north of Galesburg in Neosho County. CSV -201106 21 2000 201106 21 2002 54636 328072 ALABAMA 1 2011 June Thunderstorm Wind C 35 CONECUH MOB 21-JUN-11 20:00:00 CST-6 21-JUN-11 20:02:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N EVERGREEN 0 N EVERGREEN 31.43 -86.97 31.43 -86.97 Thunderstorms produced high winds that caused damage in southwest Alabama. Winds estimated at 60 mph downed numerous trees around the county causing power outages. CSV -201106 24 1955 201106 24 1957 54636 328074 ALABAMA 1 2011 June Thunderstorm Wind C 13 BUTLER MOB 24-JUN-11 19:55:00 CST-6 24-JUN-11 19:57:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N GREENVILLE 0 N GREENVILLE 31.83 -86.63 31.83 -86.63 Thunderstorms produced high winds that caused damage in southwest Alabama. Winds estimated at 60 mph downed numerous trees around the county causing power outages. CSV -201106 28 1454 201106 28 1456 54640 328075 ALABAMA 1 2011 June Thunderstorm Wind C 41 CRENSHAW MOB 28-JUN-11 14:54:00 CST-6 28-JUN-11 14:56:00 0 0 0 0 5.00K 0.00K Emergency Manager 52 EG \N \N \N 0 N HIGHLAND HOME 0 N HIGHLAND HOME 31.95 -86.32 31.95 -86.32 Thunderstorms produced high winds and large hail in southwest Alabama. Winds estimated at 60 mph downed trees and power lines causing power outages. CSV -201106 28 1546 201106 28 1548 54640 328076 ALABAMA 1 2011 June Hail C 39 COVINGTON MOB 28-JUN-11 15:46:00 CST-6 28-JUN-11 15:48:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 2 N OPP 2 N OPP 31.309 -86.25 31.309 -86.25 Thunderstorms produced high winds and large hail in southwest Alabama. CSV -201106 28 1454 201106 28 1456 54640 328077 ALABAMA 1 2011 June Hail C 39 COVINGTON MOB 28-JUN-11 14:54:00 CST-6 28-JUN-11 14:56:00 0 0 0 0 0.00K 0.00K Emergency Manager 1.75 \N \N \N 2 N OPP 2 N OPP 31.309 -86.25 31.309 -86.25 Thunderstorms produced high winds and large hail in southwest Alabama. CSV -201106 28 1730 201106 28 1732 54642 328082 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 630 MOBILE BAY MOB 28-JUN-11 17:30:00 CST-6 28-JUN-11 17:32:00 0 0 0 0 0.00K 0.00K Mesonet 41 MG \N \N \N 6 W POINT CLEAR 6 W POINT CLEAR 30.48 -88.0308 30.48 -88.0308 Strong thunderstorms developed over the marine area and produced high winds. CSV -201106 28 1640 201106 28 1642 54642 328084 GULF OF MEXICO 85 2011 June Marine Thunderstorm Wind Z 630 MOBILE BAY MOB 28-JUN-11 16:40:00 CST-6 28-JUN-11 16:42:00 0 0 0 0 0.00K 0.00K Mesonet 39 MG \N \N \N 0 N BATTLESHIP PARK 0 N BATTLESHIP PARK 30.68 -88.01 30.68 -88.01 Strong thunderstorms developed over the marine area and produced high winds. CSV -201105 21 1830 201105 21 1833 52007 309939 MISSOURI 29 2011 May Tornado C 3 ANDREW EAX 21-MAY-11 18:30:00 CST-6 21-MAY-11 18:33:00 0 0 0 0 7.00K 0.00K Storm Chaser \N EF0 1.22 60 \N 4 ESE FILLMORE 4 ESE FILLMORE 40.0019 -94.9178 40.0183 -94.9092 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. At 1830CST, an EF0 tornado touched down nearly 4 miles southeast of Fillmore. The tornado moved around a mile northeast, before lifting at 1833CST, about 4 miles east of Fillmore. Minor damage was reported to three homes. Tree damage was also reported. CSV -201105 21 2007 201105 21 2007 52007 309944 MISSOURI 29 2011 May Thunderstorm Wind C 79 GRUNDY EAX 21-MAY-11 20:07:00 CST-6 21-MAY-11 20:07:00 0 0 0 0 0.00K 0.00K Amateur Radio 52 EG \N \N \N 1 S COBURN 1 S COBURN 39.97 -93.73 39.97 -93.73 An upper level disturbance over northern Kansas, lifted into Nebraska, during the afternoon and evening hours of May 21, 2011. This disturbance, combined with moisture convergence and diurnal heating, allowed thunderstorms to develop. The thunderstorms moved northeast into northwestern Missouri. There were numerous reports of hail and one report of a tornado. Thunderstorm wind gusts were estimated up to 60 mph. CSV -201106 10 1723 201106 10 1724 53210 318230 ILLINOIS 17 2011 June Hail C 171 SCOTT ILX 10-JUN-11 17:23:00 CST-6 10-JUN-11 17:24:00 0 0 0 0 0.00K 0.00K COOP Observer 1.25 \N \N \N 0 E WINCHESTER 0 E WINCHESTER 39.63 -90.47 39.63 -90.47 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201106 10 1742 201106 10 1743 53210 318231 ILLINOIS 17 2011 June Hail C 137 MORGAN ILX 10-JUN-11 17:42:00 CST-6 10-JUN-11 17:43:00 0 0 0 0 0.00K 0.00K Emergency Manager 1 \N \N \N 1 WNW LYNNVILLE 1 WNW LYNNVILLE 39.69 -90.37 39.69 -90.37 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201106 10 1759 201106 10 1800 53210 318232 ILLINOIS 17 2011 June Hail C 169 SCHUYLER ILX 10-JUN-11 17:59:00 CST-6 10-JUN-11 18:00:00 0 0 0 0 0.00K 0.00K Law Enforcement 1.75 \N \N \N 4 W BROOKLYN 4 W BROOKLYN 40.23 -90.8458 40.23 -90.8458 An area of low pressure tracking from northern Missouri into the southern Great Lakes triggered scattered thunderstorms across central Illinois during the afternoon and evening of June 10th into the early morning hours of the 11th. A few of the storms produced large hail up to the size of golf balls, as well as gusty winds of 50 to 60 mph. In addition, a brief tornado touch down occurred in rural Schuyler County near Littleton. CSV -201106 8 1547 201106 8 1547 52105 310592 LOUISIANA 22 2011 June Lightning C 33 EAST BATON ROUGE LIX 08-JUN-11 15:47:00 CST-6 08-JUN-11 15:47:00 0 0 0 0 5.00K 0.00K Broadcast Media \N \N \N \N 4 SE KLEINPETER 4 SE KLEINPETER 30.3147 -90.9648 30.3147 -90.9648 A weak upper trough combined with a highly unstable airmass to produce isolated severe thunderstorms. A house on Charleston Road was struck by lightning. CSV -\. - - --- --- PostgreSQL database dump complete --- - diff --git a/module2/final_exam/exam-playbook-solution-example/main.yml b/module2/final_exam/exam-playbook-solution-example/main.yml deleted file mode 100644 index 1c31e97..0000000 --- a/module2/final_exam/exam-playbook-solution-example/main.yml +++ /dev/null @@ -1,11 +0,0 @@ ---- -- hosts: nodepgs - become: yes - tasks: - - import_tasks: tasks/setup_grub.yml - vars: - grub_timeout: 1 - - import_tasks: tasks/install_selinux.yml - - import_tasks: tasks/setup_raid1_for_postgres.yml - - import_tasks: tasks/install_postgres.yml - - import_tasks: tasks/setup_weather_db.yml \ No newline at end of file diff --git a/module2/final_exam/exam-playbook-solution-example/tasks/install_postgres.yml b/module2/final_exam/exam-playbook-solution-example/tasks/install_postgres.yml deleted file mode 100644 index 3f279ca..0000000 --- a/module2/final_exam/exam-playbook-solution-example/tasks/install_postgres.yml +++ /dev/null @@ -1,27 +0,0 @@ -- name: Install gnupg - apt: - pkg: gnupg - -- name: Install key - apt_key: - url: https://www.postgresql.org/media/keys/ACCC4CF8.asc - state: present - -- name: Add postgresql repository into sources list as pgdg file - ansible.builtin.apt_repository: - repo: "deb http://apt.postgresql.org/pub/repos/apt {{ ansible_distribution_release }}-pgdg main" - state: present - filename: pgdg - -- name: Install postgre - apt: - pkg: postgresql-15* - register: postgre_installation - -- name: Delete old configuration - shell: rm -rf /var/lib/postgresql/* - when: postgre_installation.changed - -- name: Init PostgreSQL - shell: pg_createcluster 15 main --start - when: postgre_installation.changed \ No newline at end of file diff --git a/module2/final_exam/exam-playbook-solution-example/tasks/install_selinux.yml b/module2/final_exam/exam-playbook-solution-example/tasks/install_selinux.yml deleted file mode 100644 index ecc4be7..0000000 --- a/module2/final_exam/exam-playbook-solution-example/tasks/install_selinux.yml +++ /dev/null @@ -1,20 +0,0 @@ -- name: 'Install SELinux' - apt: - pkg: - - selinux-basics - - selinux-policy-default - - auditd - state: present - -- name: 'Activate SELinux' - shell: selinux-activate - when: ansible_selinux.status == "disabled" - -- name: 'Reboot after SElLinux install' - reboot: - when: ansible_selinux.status == "disabled" - -- name: 'Check SELinux in permissive mode' - ansible.posix.selinux: - policy: default - state: permissive \ No newline at end of file diff --git a/module2/final_exam/exam-playbook-solution-example/tasks/setup_grub.yml b/module2/final_exam/exam-playbook-solution-example/tasks/setup_grub.yml deleted file mode 100644 index 7e056b2..0000000 --- a/module2/final_exam/exam-playbook-solution-example/tasks/setup_grub.yml +++ /dev/null @@ -1,11 +0,0 @@ -- name: "Get grub timeout value" - shell: cat /etc/default/grub | grep GRUB_TIMEOUT | sed 's/GRUB_TIMEOUT=//g' - register: current_grub_timeout - -- name: 'Configure grub timeout if not already' - shell: sed 's/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT={{ timeout }}/g' -i /etc/default/grub - when: current_grub_timeout.stdout != "{{ grub_timeout }}" - -- name: 'Update grub' - shell: update-grub - when: current_grub_timeout.stdout != "{{ grub_timeout }}" \ No newline at end of file diff --git a/module2/final_exam/exam-playbook-solution-example/tasks/setup_raid1_for_postgres.yml b/module2/final_exam/exam-playbook-solution-example/tasks/setup_raid1_for_postgres.yml deleted file mode 100644 index 63f23c8..0000000 --- a/module2/final_exam/exam-playbook-solution-example/tasks/setup_raid1_for_postgres.yml +++ /dev/null @@ -1,59 +0,0 @@ -- name: 'Install mdadm' - apt: - pkg: mdadm - -- name: 'Check raid 1 has mount point at /var/lib/postgresql' - command: /bin/mountpoint -q /var/lib/postgresql/ - register: raid1_mounted - failed_when: False - -- name: 'Configure md raid 1' - shell: mdadm --create /dev/md0 --raid-devices=2 --level=1 /dev/disk/by-id/scsi-0QEMU_QEMU_HARDDISK_drive-scsi[1,2] --run - register: "array_created" - when: ansible_facts['devices']['md0'] is undefined and - raid1_mounted.rc == 1 - -- name: 'Get configuration strings for configured raids' - command: "mdadm --detail --scan" - register: array_details - changed_when: false - -- name: 'Persist configuration in /etc/mdadm/mdadm.conf ' - lineinfile: - dest: "/etc/mdadm/mdadm.conf" - regexp: "^{{ item }}" - line: "{{ item }}" - state: "present" - with_items: '{{ array_details.stdout_lines }}' - when: array_created.changed - register: updated_mdadm_conf - -- name: 'Updating Initramfs' - command: update-initramfs -u - when: updated_mdadm_conf is defined and - updated_mdadm_conf.changed - -- name: 'Format raid1, ext4 filesystem' - community.general.filesystem: - fstype: ext4 - dev: /dev/md0 - -- name: 'Update facts about node.' - setup: - -- name: 'Create postrgresql folder' - file: - path: /var/lib/postgresql - state: directory - -- name: 'Setup permanent mountpoint /var/lib/postgresql for raid1' - ansible.posix.mount: - path: /var/lib/postgresql - src: UUID={{ ansible_facts['devices']['md0']['links']['uuids'][0] }} - fstype: ext4 - state: present - register: permanent_raid1_mount - -- name: reboot - reboot: - when: permanent_raid1_mount.changed \ No newline at end of file diff --git a/module2/final_exam/exam-playbook-solution-example/tasks/setup_weather_db.yml b/module2/final_exam/exam-playbook-solution-example/tasks/setup_weather_db.yml deleted file mode 100644 index b3e24f9..0000000 --- a/module2/final_exam/exam-playbook-solution-example/tasks/setup_weather_db.yml +++ /dev/null @@ -1,7 +0,0 @@ -- name: Copy weather.sql - copy: - src: ./files/weather.sql - dest: /tmp/weather.sql - -- name: import wether db to pg - shell: sudo -u postgres psql -f /tmp/weather.sql \ No newline at end of file diff --git a/module2/final_exam/portfolio.md b/module2/final_exam/portfolio.md index 15effcb..d3fb331 100644 --- a/module2/final_exam/portfolio.md +++ b/module2/final_exam/portfolio.md @@ -1,13 +1,13 @@ # Портфолио ## 1. proxmox -Web интерфейс созданного в задании Proxmox доступен по адресу https://proxmox.studX.startmyoffice.space. +Web интерфейс созданного в задании Proxmox доступен по адресу https://studX.myoffice.ru/proxmox/. ## 2. nginx_ha -Cайт доступен по адресу https://nginx-ha.studX.startmyoffice.space. При остановке активной машины должен обслуживаться резервным сервером. +Cайты доступены по адресу https://studX.myoffice.ru/ha/1/ и https://studX.myoffice.ru/ha/2/. При остановке активной машины должен обслуживаться резервным сервером. ## 3. docker -Cайт с картой еды в Сан-Франциско доступен по адресу https://foodtrucks.studX.startmyoffice.space. +Cайт с демонстрацией развёрнутого в docker приложения доступен по адресу https://studX.myoffice.ru/docker/. ## 4. postfix + dovecot Из почтового клиента можно отправить почту с почтового ящика stud@studX.myoffice.ru и прочитать входящие сообщения. \ No newline at end of file