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U.S. Severe Weather Map

Updated: 1:25 PM GMT on July 04, 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
Public Information Statement:
Arizona
Public Information Statement:
Arkansas
Flood Warning:
Areal Flood Advisory:
Record Report:
California
Special Weather Statement:
Record Report:
Public Information Statement:
Colorado
Flood Warning:
Public Information Statement:
Georgia
Record Report:
Idaho
Lake Wind Advisory:
Fire Weather Warning:
Record Report:
Illinois
Flood Warning:
Areal Flood Advisory:
Record Report:
Indiana
Areal Flood Advisory:
Iowa
Flood Warning:
Kansas
Public Information Statement:
Kentucky
Flash Flood Watch:
Louisiana
Flood Warning:
Record Report:
Michigan
Flood Warning:
Missouri
Flood Warning:
Areal Flood Warning:
Areal Flood Warning:
Flash Flood Watch:
Montana
Flood Warning:
Lake Wind Advisory:
Nebraska
Public Information Statement:
Nevada
Wind Advisory:
Fire Weather Warning:
North Carolina
Special Weather Statement:
Record Report:
North Dakota
Flood Warning:
Ohio
Flood Warning:
Flash Flood Watch:
Oklahoma
Record Report:
Oregon
Record Report:
South Carolina
Record Report:
Tennessee
Record Report:
Texas
Record Report:
Utah
Fire Weather Warning:
Record Report:
Washington
Record Report:
West Virginia
Flash Flood Watch:
Wisconsin
Flood Warning:
Wyoming
Record Report:
 
 

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