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U.S. Severe Weather Map

Opdateret: 01:40 AM GMT on maj 15, 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 Advisory - Winter Weather Advisory
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
Public Information Statement:
Alaska
Areal Flood Watch:
Wind Advisory:
Arizona
Lake Wind Advisory:
Fire Weather Warning:
Record Report:
Arkansas
Flood Warning:
Flash Flood Watch:
Flood Advisory:
Record Report:
Public Information Statement:
California
Lake Wind Advisory:
Wind Advisory:
High Wind Advisory:
Excessive Heat Warning, Heat Advisory:
Excessive Heat Warning, Excessive Heat Watch:
Heat Advisory:
Heat Advisory, Excessive Heat Watch:
Fire Weather Warning:
Special Weather Statement:
Antelope Valley, Apple and Lucerne Valleys, Catalina Island, Central Siskiyou County, Coachella Valley, Cuyama Valley, 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 Coast, Mendocino Interior, Modoc County, Mono, North Central and Southeast Siskiyou County, North Coast Interior, Northeast Siskiyou and Northwest Modoc Counties, Orange County Coastal Areas, Redwood Coast, Riverside County Mountains, San Bernardino and Riverside County Valleys -The Inland Empire, San Bernardino County Mountains, San Diego County Coastal Areas, San Diego County Deserts, San Diego County Mountains, San Diego County Valleys, San Luis Obispo County Central Coast, San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Ana Mountains and Foothills, Santa Barbara County Central Coast, Santa Barbara County Mountains, Santa Barbara County South Coast, Santa Clarita Valley, Santa Monica Mountains Recreational Area, Santa Ynez Valley, Sierra Nevada from Yosemite to Kings Canyon, South Central Siskiyou County, Southeastern Kern County Desert, Southeastern San Joaquin Valley, Southwestern San Joaquin Valley, Surprise Valley California, Tulare County Foothills, Tulare County Mountains, Upper Trinity River, Ventura County Coast, Ventura County Coastal Valleys, Ventura County Interior Valleys, Ventura County Mountains, West-Central San Joaquin Valley, Western Siskiyou County
Record Report:
Public Information Statement:
Colorado
Snow Advisory:
Record Report:
Public Information Statement:
Alamosa Vicinity/Central San Luis Valley Below 8500 Ft, Animas River Basin, Central Chaffee County Below 9000 Ft, Central Colorado River Basin, Central Gunnison and Uncompahgre River Basin, Central Yampa River Basin, Debeque to Silt Corridor, Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft, Eastern San Juan Mountains Above 10000 Ft, Eastern Sawatch Mountains Above 11000 Ft, Elkhead and Park Mountains, Flattops, Four Corners/Upper Dolores River, Gore and Elk Mountains/Central Mountain Valleys, Grand and Battlement Mesas, Grand Valley, La Garita Mountains Above 10000 Ft, Leadville Vicinity/Lake County Below 11000 Ft, Lower Yampa River Basin, Northern Sangre De Cristo Mountains Above 11000 Feet, Northern Sangre De Cristo Mountains Between 8500 And 11000 Ft, Northwestern Fremont County above 8500 Ft, Northwestern San Juan Mountains, Paradox Valley/Little Dolores River, Roan and Tavaputs Plateaus, Saguache County East of Continental Divide Below 10000 Ft, Saguache County West of Continental Divide Below 10000 Ft, San Juan River Basin, Southern San Luis Valley, Southern Sangre De Cristo Mountains Above 11000 Ft, Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft, Southwest San Juan Mountains, Teller County/Rampart Range above 7500 Ft/Pikes Peak Between 7500 And 11000 Ft, Uncompahgre Plateau/Dallas Divide, Upper Gunnison River Valley, Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft, Upper Yampa River Basin, West Elk and Sawatch Mountains, Western Chaffee County Between 9000 and 11000 Ft, Western Mosquito Range/East Chaffee County Above 9000 Ft, Western Mosquito Range/East Lake County Above 11000 Ft, Western/Central Fremont County Below 8500 Ft, Wet Mountain Valley Below 8500 Feet, Wet Mountains Above 10000 Ft, Wet Mountains Between 6300 and 10000 Ft
District of Columbia
Coastal Flood Warning:
Florida
Dense Smoke Advisory:
Fire Weather Advisory:
Record Report:
Georgia
Record Report:
Public Information Statement:
Idaho
Wind Advisory:
Lake Wind Advisory:
Record Report:
Public Information Statement:
Illinois
Flood Warning:
Hydrologic Statement:
Indiana
Flood Warning:
Iowa
Flood Warning:
Hydrologic Statement:
Public Information Statement:
Kansas
Public Information Statement:
Kentucky
Flood Warning:
Louisiana
Tornado Watch:
Tornado Watch:
Flash Flood Warning:
Flood Warning:
Flash Flood Warning:
Flood Warning, Flash Flood Warning:
Flash Flood Watch:
Special Weather Statement:
Record Report:
Maryland
Coastal Flood Warning:
Coastal Flood Advisory:
Michigan
Frost Advisory:
Mississippi
Tornado Warning:
Tornado Watch:
Tornado Watch:
Severe Thunderstorm Warning:
Flood Warning:
Flash Flood Watch:
Missouri
Flood Warning:
Flood Warning:
Public Information Statement:
Montana
Lake Wind Advisory:
Special Weather Statement:
Public Information Statement:
Nevada
Lake Wind Advisory:
Wind Advisory:
Special Weather Statement:
Public Information Statement:
New Mexico
Tornado Watch:
Flood Watch / Flood Statement:
New York
Public Information Statement:
North Carolina
High Surf Advisory:
Record Report:
Public Information Statement:
Oklahoma
Flash Flood Watch:
Record Report:
Oregon
Special Weather Statement:
Record Report:
Public Information Statement:
Pennsylvania
Public Information Statement:
South Carolina
Public Information Statement:
Tennessee
Flash Flood Watch:
Texas
Tornado Warning:
Tornado Warning:
Tornado Watch:
Tornado Watch:
Severe Thunderstorm Warning:
Severe Thunderstorm Warning:
Flood Warning:
Flood Warning:
Flash Flood Watch:
Special Weather Statement:
Record Report:
Utah
Record Report:
Public Information Statement:
Virginia
Coastal Flood Warning:
Coastal Flood Advisory:
Record Report:
Washington
Special Weather Statement:
Record Report:
Wisconsin
Public Information Statement:
Wyoming
Record Report:
Public Information Statement:
 
 

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