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U.S. Severe Weather Map

Updated: 4:25 AM GMT on July 24, 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
 
 
Alaska
Record Report:
Arizona
Public Information Statement:
California
Special Weather Statement:
Record Report:
Colorado
Public Information Statement:
Connecticut
Severe Thunderstorm Watch:
Severe Thunderstorm Watch:
Areal Flood Warning:
Flash Flood Warning:
Areal Flood Advisory, Areal Flood Watch:
Areal Flood Advisory, Flash Flood Watch:
Flash Flood Watch:
Areal Flood Watch:
Record Report:
Public Information Statement:
Delaware
Flash Flood Watch:
District of Columbia
Flash Flood Warning:
Public Information Statement:
Idaho
Record Report:
Public Information Statement:
Illinois
Flood Warning:
Record Report:
Iowa
Severe Thunderstorm Watch:
Flood Warning:
Public Information Statement:
Louisiana
Flood Warning:
Coastal Flood Advisory:
Maryland
Flash Flood Warning:
Flash Flood Watch:
Public Information Statement:
Massachusetts
Severe Thunderstorm Watch:
Severe Thunderstorm Watch:
Severe Thunderstorm Warning:
Areal Flood Warning:
Areal Flood Advisory, Areal Flood Watch:
High Surf Advisory:
Areal Flood Advisory:
Record Report:
Public Information Statement:
Michigan
Public Information Statement:
Minnesota
Public Information Statement:
Missouri
Record Report:
Montana
Severe Thunderstorm Warning:
Record Report:
Nebraska
Severe Thunderstorm Watch:
Record Report:
Public Information Statement:
New Hampshire
Areal Flood Advisory, Areal Flood Watch:
Areal Flood Watch:
Areal Flood Advisory:
New Jersey
Severe Thunderstorm Watch:
Severe Thunderstorm Watch:
Flash Flood Warning:
Areal Flood Advisory, Flash Flood Watch:
Flash Flood Watch:
Record Report:
New Mexico
Record Report:
New York
Severe Thunderstorm Watch:
Severe Thunderstorm Watch:
Flash Flood Warning:
Areal Flood Warning:
Flood Warning:
Areal Flood Watch:
Areal Flood Advisory, Flash Flood Watch:
Areal Flood Watch, Areal Flood Advisory:
Areal Flood Advisory, Areal Flood Watch:
Flash Flood Watch:
Areal Flood Advisory:
Record Report:
Public Information Statement:
North Carolina
Flash Flood Warning:
Areal Flood Warning:
Flood Watch / Flood Statement:
Areal Flood Advisory:
Special Weather Statement:
Record Report:
North Dakota
Public Information Statement:
Ohio
Public Information Statement:
Oklahoma
Heat Advisory:
Oregon
Record Report:
Public Information Statement:
Pennsylvania
Flash Flood Warning:
Areal Flood Advisory, Flash Flood Watch:
Areal Flood Watch:
Areal Flood Watch, Areal Flood Advisory:
Areal Flood Advisory:
Record Report:
Public Information Statement:
Rhode Island
Severe Thunderstorm Watch:
Severe Thunderstorm Watch:
High Surf Advisory:
South Dakota
Severe Thunderstorm Watch:
Areal Flood Advisory:
Public Information Statement:
Texas
Tornado Watch:
Inland Tropical Wind Warning:
Tropical Storm Warning:
Coastal Flood Advisory:
Areal Flood Watch:
Areal Flood Advisory, Areal Flood Watch:
Heat Advisory:
Record Report:
Public Information Statement:
Vermont
Areal Flood Warning:
Areal Flood Watch:
Record Report:
Public Information Statement:
Virginia
Flash Flood Warning:
Flash Flood Watch:
Record Report:
Public Information Statement:
West Virginia
Record Report:
Public Information Statement:
Wisconsin
Flood Warning:
Public Information Statement:
Wyoming
Public Information Statement:
Severe Thunderstorm Watch:
 
 

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