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U.S. Severe Weather Map

Updated: 6:30 AM GMT on May 13, 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:
Public Information Statement:
Alaska
Areal Flood Warning:
Areal Flood Watch:
Wind Advisory:
Arizona
Wind Advisory:
Fire Weather Warning:
Fire Weather Watch:
Arkansas
Flood Warning:
Public Information Statement:
California
Wind Advisory:
Excessive Heat Watch:
Fire Weather Warning:
Fire Weather Watch:
Special Weather Statement:
Antelope Valley, Burney Basin / Eastern Shasta County, Carquinez Strait and Delta, Catalina Island, Central Sacramento Valley, Central Siskiyou County, Clear Lake/Southern Lake County, Coastal North Bay Including Point Reyes National Seashore, Cuyama Valley, East Bay Hills and the Diablo Range, East Bay Interior Valleys, East-Central San Joaquin Valley, Greater Lake Tahoe Area, Indian Wells Valley, Kern County Mountains, Lassen-Eastern Plumas-Eastern Sierra Counties, 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, Mendocino Interior, Modoc County, Mono, 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, North Central and Southeast Siskiyou County, North Coast Interior, Northeast Foothills/Sacramento Valley, Northeast Siskiyou and Northwest Modoc Counties, Northern Monterey Bay, Northern Sacramento Valley, Northern Salinas Valley/Hollister Valley and Carmel Valley, Northern San Joaquin Valley, San Francisco Peninsula Coast, 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 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, South Central Siskiyou County, Southeastern Kern County Desert, Southeastern San Joaquin Valley, Southern Monterey Bay and Big Sur Coast, Southern Sacramento Valley, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Southwestern San Joaquin Valley, Surprise Valley California, Tulare County Foothills, Upper Trinity River, 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, Western Siskiyou County
Public Information Statement:
Colorado
Winter Storm Warning:
Snow Advisory:
Heavy Snow Warning:
Record Report:
Delaware
Coastal Flood Warning:
Record Report:
District of Columbia
Record Report:
Public Information Statement:
Florida
Dense Smoke Advisory:
Fire Weather Warning:
Fire Weather Watch:
Record Report:
Georgia
Fire Weather Warning:
Public Information Statement:
Guam
Flood Watch / Flood Statement:
Hawaii
Flood Watch / Flood Statement:
Idaho
Freeze Warning:
Public Information Statement:
Illinois
Flood Warning:
Flood Advisory:
Indiana
Flood Warning:
Public Information Statement:
Iowa
Flood Warning:
Public Information Statement:
Kansas
Record Report:
Kentucky
Flood Warning:
Public Information Statement:
Louisiana
Flood Warning:
Public Information Statement:
Maine
Fire Weather Watch:
Maryland
Flood Warning:
Coastal Flood Warning:
Coastal Flood Advisory:
Coastal Flood Warning, High Surf Advisory:
Record Report:
Public Information Statement:
Massachusetts
Wind Advisory:
Fire Weather Watch:
Michigan
Dense Fog Advisory:
Public Information Statement:
Mississippi
Flood Warning:
Record Report:
Public Information Statement:
Missouri
Flood Warning:
Record Report:
Public Information Statement:
Montana
Special Weather Statement:
Nebraska
Record Report:
Nevada
Wind Advisory:
Special Weather Statement:
New Hampshire
Fire Weather Watch:
New Jersey
Coastal Flood Warning:
Coastal Flood Advisory:
Record Report:
New Mexico
Wind Advisory:
High Wind Watch:
Fire Weather Watch, Fire Weather Warning:
Fire Weather Watch:
Fire Weather Warning:
New York
Coastal Flood Advisory:
Flood Advisory:
North Carolina
Coastal Flood Warning:
Coastal Flood Warning, High Surf Advisory:
High Wind Warning:
Wind Advisory:
Public Information Statement:
Ohio
Flood Warning:
Public Information Statement:
Oklahoma
Public Information Statement:
Oregon
Special Weather Statement:
Record Report:
Pennsylvania
Coastal Flood Warning:
Flood Warning:
Record Report:
South Carolina
Lake Wind Advisory:
Public Information Statement:
South Dakota
Record Report:
Tennessee
Public Information Statement:
Texas
Wind Advisory:
High Wind Watch:
Fire Weather Warning:
Fire Weather Watch:
Special Weather Statement:
Public Information Statement:
Utah
Public Information Statement:
Virginia
Flood Warning:
Coastal Flood Warning:
Coastal Flood Advisory:
Coastal Flood Warning, High Surf Advisory:
Record Report:
Public Information Statement:
Washington
Record Report:
West Virginia
Flood Warning:
Record Report:
Public Information Statement:
Wisconsin
Flood Warning:
Wyoming
Snow Advisory:
Record Report:
Public Information Statement:
 
 

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