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U.S. Severe Weather Map

Updated: 3:45 AM GMT on May 12, 2008Edit My Time Zone
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Click on a colored region of the map for details.

Weather Warning Legend:
 
Tornado Warning - Tornado Warning
A tornado warning is issued when a funnel cloud has been spotted or a rotating thunderstorm has been indicated by doppler radar.
Tornado Watch - Tornado Watch
A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes.
Severe Thunderstorm Warning - Severe Thunderstorm Warning
A severe thunderstorm warning is issued when a storm with any of these severe weather criteria is approaching the warning area:
  • Hail 3/4 of an inch or greater
  • Winds greater than 58 mph
  • Recent history of tree, telephone pole, or other structural damage
Severe Thunderstorm Watch - Severe Thunderstorm Watch
A severe thunderstorm watch is issued when there is a possibility that thunderstorms in and near the watch box area may produce the following severe weather conditions:
  • Hail 3/4 of an inch or greater
  • Winds greater than 58 mph
Winter Weather Statement - Winter Weather Statement
A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area.
High Wind Advisory - High Wind Advisory
A high wind advisory is issued when sustained winds of 31 mph or greater are expected to occur for at least 1 hour. This advisory can also be issued if winds of 46 mph or greater are expected for any length of time.
Flood Warning - Flood Warning
A flood warning is issued when flooding is occuring or is about to occur.
Flood Watch / Flood Statement - Flood Watch / Flood Statement
A flood watch is issued when flooding is possible in the watch area.
Hurricane Local Statement - Hurricane Local Statement
This statement is issued when it is necessary to inform the public of hurricane or tropical storm watches and warnings. These statements contain detailed information of when and what adverse conditions to expect as a result of the tropical system affecting the statement area.
Heat Advisory - Heat Advisory
A heat advisory is issued when the heat index is expected to exceed 105° F (100° F in New York City) or if nighttime lows are expected to be greater than 80° F for two or more nights.
Dense Fog Advisory - Dense Fog Advisory
A dense fog advisory is issued when fog that reduces visibility to 1/4 mile or less is possible in the advisory area.
Fire Weather Advisory - Fire Weather Advisory
A fire weather advisory is issued when dry conditions in the advisory area result in a situation where forest or brush fires are possible.
Hurricane Watch - Hurricane Watch
A Hurricane Watch means hurricane conditions are possible in the next 24 hours.
Hurricane Warning - Hurricane Warning
A Hurricane Warning means hurricane conditions are expected in the next 24 hours.
Tropical Storm Watch - Tropical Storm Watch
A Tropical Storm warning means tropical storm conditions are possible in the next 24 hours.
Tropical Storm Warning - Tropical Storm Warning
A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours.
 
U.S. Warnings by County
 
 
Alabama
Record Report:
Alaska
Wind Advisory:
Public Information Statement:
Arizona
Wind Advisory:
Fire Weather Watch:
Record Report:
Arkansas
Flood Warning:
Record Report:
Public Information Statement:
California
Lake Wind Advisory:
Fire Weather Watch:
Special Weather Statement:
Antelope Valley, Burney Basin / Eastern Shasta County, Carquinez Strait and Delta, Catalina Island, Central Sacramento Valley, Clear Lake/Southern Lake County, Cuyama Valley, East Bay Hills and the Diablo Range, East Bay Interior Valleys, East-Central San Joaquin Valley, Indian Wells Valley, Kern County Mountains, Los Angeles County Coast including Downtown Los Angeles, Los Angeles County Mountains excluding the Santa Monica Range, Los Angeles County Valleys, Mariposa Madera and Fresno County Foothills, Motherlode, Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Monument, Mountains Southwestern Shasta County to Northern Lake County, North Bay Interior Valleys, North Bay Mountains, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Northern Salinas Valley/Hollister Valley and Carmel Valley, Northern San Joaquin Valley, San Francisco Bay Shoreline, San Luis Obispo County Central Coast, San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Barbara County Central Coast, Santa Barbara County Mountains, Santa Barbara County South Coast, Santa Clara Valley Including San Jose, Santa Clarita Valley, Santa Cruz Mountains, Santa Lucia Mountains and Los Padres National Forest, Santa Monica Mountains Recreational Area, Santa Ynez Valley, Shasta Lake Area / Northern Shasta County, Southeastern Kern County Desert, Southeastern San Joaquin Valley, Southern Sacramento Valley, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Southwestern San Joaquin Valley, Tulare County Foothills, Ventura County Coast, Ventura County Coastal Valleys, Ventura County Interior Valleys, Ventura County Mountains, West Slope Northern Sierra Nevada, West-Central San Joaquin Valley, Western Plumas County/Lassen Park
Colorado
Winter Storm Watch:
Fire Weather Warning:
Record Report:
Public Information Statement:
Connecticut
Coastal Flood Advisory:
Delaware
Coastal Flood Warning:
Areal Flood Watch:
Wind Advisory:
Public Information Statement:
District of Columbia
Areal Flood Warning:
Areal Flood Watch:
Florida
Lake Wind Advisory:
Fire Weather Warning:
Fire Weather Warning, Fire Weather Watch:
Fire Weather Watch, Fire Weather Warning:
Record Report:
Georgia
Wind Advisory:
Lake Wind Advisory:
Fire Weather Warning:
Record Report:
Public Information Statement:
Guam
Flood Watch / Flood Statement:
Hawaii
Flood Watch / Flood Statement:
Idaho
Lake Wind Advisory:
Record Report:
Illinois
Flood Warning:
Public Information Statement:
Indiana
Flood Warning:
Wind Advisory:
Public Information Statement:
Iowa
Flood Warning:
Public Information Statement:
Kansas
Fire Weather Warning:
Public Information Statement:
Kentucky
Wind Advisory:
Public Information Statement:
Louisiana
Flood Warning:
Maryland
Areal Flood Warning:
Flood Warning, Areal Flood Warning:
Flood Warning:
Areal Flood Watch:
Areal Flood Watch, Coastal Flood Advisory:
Coastal Flood Watch:
Coastal Flood Advisory:
Wind Advisory:
High Wind Warning:
Special Weather Statement:
Public Information Statement:
Minnesota
Record Report:
Mississippi
Flood Warning:
Record Report:
Missouri
Flood Warning:
Public Information Statement:
Montana
Heavy Snow Warning:
Special Weather Statement:
Nebraska
Fire Weather Warning:
Record Report:
Nevada
Lake Wind Advisory:
Wind Advisory:
New Jersey
Coastal Flood Warning:
Coastal Flood Advisory:
Wind Advisory:
Public Information Statement:
New Mexico
Wind Advisory:
High Wind Watch:
Fire Weather Warning:
Fire Weather Warning, Fire Weather Watch:
Fire Weather Watch:
New York
Coastal Flood Advisory:
Wind Advisory:
North Carolina
High Wind Warning:
Wind Advisory:
Lake Wind Advisory:
Special Weather Statement:
Record Report:
North Dakota
Record Report:
Oklahoma
Flood Warning:
Fire Weather Watch:
Public Information Statement:
Oregon
Record Report:
Pennsylvania
Coastal Flood Warning:
Areal Flood Watch:
Public Information Statement:
South Carolina
Lake Wind Advisory:
Wind Advisory:
Special Weather Statement:
Record Report:
South Dakota
Record Report:
Tennessee
Wind Advisory:
Texas
Wind Advisory:
High Wind Watch:
Fire Weather Warning:
Fire Weather Watch:
Record Report:
Utah
Severe Thunderstorm Warning:
Snow Advisory:
Fire Weather Warning:
Special Weather Statement:
Virginia
Areal Flood Warning:
Areal Flood Warning:
Flood Warning:
Areal Flood Advisory:
Areal Flood Watch:
High Wind Warning:
Wind Advisory:
Special Weather Statement:
West Virginia
Flood Warning:
Areal Flood Watch:
High Wind Warning:
Wind Advisory:
Wisconsin
Flood Warning:
Wyoming
Snow Advisory:
Record Report:
 
 

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