U.S. Severe Weather Map

ปรับปรุงล่าสุด: 09:35 AM GMT วัน พฤศจิกายน 05, 2009 — Edit My Time Zone

Click on a colored region of the map for details.

Weather Warning Legend:

- 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
A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes.

- 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
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
A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area.

- 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
A flood warning is issued when flooding is occuring or is about to occur.

- Flood Watch / Flood Statement
A flood watch is issued when flooding is possible in the watch area.

- 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
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
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
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
A Hurricane Watch means hurricane conditions are possible in the next 24 hours.

- Hurricane Warning
A Hurricane Warning means hurricane conditions are expected in the next 24 hours.

- Tropical Storm Watch
A Tropical Storm warning means tropical storm conditions are possible in the next 24 hours.

- Tropical Storm Warning
A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours.

	U.S. Warnings by County

Alaska

Coastal Flood Warning:

Cape Decision to Salisbury Sound Coastal Area, Dixon Entrance to Cape Decision Coastal Area

High Wind Warning:

Cape Decision to Salisbury Sound Coastal Area, Dixon Entrance to Cape Decision Coastal Area, Southern Inner Channels

Wind Advisory:

Inner Channels from Kupreanof Island to Etolin Island, Misty Fjords, Salisbury Sound to Cape Fairweather Coastal Area

Winter Weather Advisory:

Central Beaufort Sea Coast, Central Interior, Northern Arctic Coast, Upper Koyukuk Valley, Western Arctic Coast, Yukon Flats and Surrounding Uplands

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Arizona

Record Report:

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Arkansas

Flood Warning:

Independence, Jackson, Columbia, Calhoun, Lawrence, Union, Ashley, White, Woodruff, Ouachita, Arkansas, Bradley, Monroe, Perry, Cleveland, Drew, Randolph, Prairie, Lee, St. Francis

Frost Advisory:

Benton, Carroll, Crawford, Franklin, Madison, Washington

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California

Wind Advisory:

Central Siskiyou County, Lassen-Eastern Plumas-Eastern Sierra Counties, Modoc County, Surprise Valley California

Lake Wind Advisory:

Greater Lake Tahoe Area

Special Weather Statement:

Mendocino Coast, Redwood Coast

Record Report:

Central Siskiyou County, Modoc County, North Central and Southeast Siskiyou County, Northeast Siskiyou and Northwest Modoc Counties, South Central Siskiyou County, Western Siskiyou County

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Florida

Coastal Flood Statement:

Duval, Flagler, Nassau, St. Johns

Fire Weather Watch:

Fire Weather Warning, Fire Weather Watch:

Bay, Calhoun, Coastal Walton, Dixie, Franklin, Gadsden, Gulf, Holmes, Inland Walton, Jackson, Jefferson, Lafayette, Leon, Liberty, Madison, Taylor, Wakulla, Washington

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Georgia

Coastal Flood Statement:

Coastal Camden, Coastal Glynn

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Illinois

Flood Warning:

Brown, Cass, Peoria, Piatt, Mason, Pike, Scott, Randolph, Morgan, Bureau, Tazewell, La Salle, Woodford, Schuyler, Calhoun, Fulton, Marshall, Jersey, Alexander, Putnam, Madison, St. Clair, Menard, Jackson, Union, Pulaski

Freeze Warning:

Adams, Brown, Pike

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Iowa

Flood Warning:

Iowa, Johnson, Clinton, Scott, Louisa, Muscatine, Cedar

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Kansas

Frost Advisory:

Allen, Bourbon, Butler, Chase, Chautauqua, Cherokee, Cowley, Crawford, Elk, Greenwood, Labette, Marion, Montgomery, Neosho, Wilson, Woodson

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Kentucky

Flood Warning:

Ballard, Carlisle, Fulton, Hickman

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Louisiana

Flood Warning:

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Michigan

Flood Advisory:

Ionia

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Minnesota

Flood Warning:

Clay

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Mississippi

Flood Warning:

Attala, Holmes, Sunflower, Madison, Yazoo

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Missouri

Flood Warning:

Marion, Lincoln, Pike, St. Charles, St. Louis, Cape Girardeau, St. Louis City, Perry, Mississippi, Scott

Frost Advisory:

Barry, Barton, Benton, Camden, Cedar, Christian, Dade, Dallas, Dent, Douglas, Greene, Hickory, Howell, Jasper, Laclede, Lawrence, Maries, McDonald, Miller, Morgan, Newton, Oregon, Ozark, Phelps, Polk, Pulaski, Shannon, St. Clair, Stone, Taney, Texas, Vernon, Webster, Wright

Freeze Warning:

Audrain, Knox, Lewis, Marion, Monroe, Pike, Ralls, Shelby

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Montana

High Wind Watch:

Eastern Glacier, Northern Rocky Mountain Front, Southern Rocky Mountain Front

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Nevada

Lake Wind Advisory:

Greater Lake Tahoe Area, Western Nevada Basin and Range including Pyramid Lake

Wind Advisory:

Northern Washoe County

Record Report:

Extreme Eastern Elko County, Humboldt County, Northern Elko County, Northern Lander County and Northern Eureka County, Northern Nye County, Ruby Mountains/East Humboldt Range, Southern Lander County and Southern Eureka County, Southwest and South Central Elko County, White Pine County

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North Carolina

Coastal Flood Advisory:

Eastern Dare

Special Weather Statement:

Brunswick, Davidson, Forsyth, Guilford, New Hanover, Pender, Randolph

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North Dakota

Flood Warning:

Cass

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Oklahoma

Frost Advisory:

Adair, Alfalfa, Cherokee, Craig, Delaware, Dewey, Ellis, Garfield, Grant, Harper, Kay, Major, Mayes, Noble, Nowata, Osage, Ottawa, Payne, Roger Mills, Rogers, Washington, Woods, Woodward

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Oregon

High Wind Warning:

Curry County Coast, South Central Oregon Coast

High Wind Watch:

Central Oregon Coast, North Oregon Coast

Wind Advisory:

Central and Eastern Lake County

Special Weather Statement:

Cascades in Lane County, Central Coast Range of Western Oregon, Central Oregon Coast, Coast Range of Northwest Oregon, Curry County Coast, North Oregon Coast, Northern Oregon Cascades, South Central Oregon Coast

Record Report:

Central and Eastern Lake County, Central Douglas County, Curry County Coast, Eastern Curry County and Josephine County, Eastern Douglas County Foothills, Jackson County, Klamath Basin, Northern and Eastern Klamath County and Western Lake County, Siskiyou Mountains and Southern Oregon Cascades, South Central Oregon Cascades, South Central Oregon Coast

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South Dakota

Flood Warning:

Spink

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Tennessee

Freeze Watch:

Bedford, Benton, Cannon, Cheatham, Coffee, Davidson, DeKalb, Dickson, Giles, Hickman, Houston, Humphreys, Lawrence, Lewis, Macon, Marshall, Maury, Montgomery, Perry, Robertson, Rutherford, Smith, Stewart, Sumner, Trousdale, Warren, Wayne, Williamson, Wilson

Frost Advisory:

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Texas

Flood Warning:

Angelina, Polk, Cass, Marion, Henderson, Bowie, Upshur, Walker, Chambers, Anderson, Smith, Wood, Gregg, Navarro, Harrison, Panola, Rusk, Cherokee, Franklin, Morris, Red River, Titus, Freestone, Houston, Trinity, Leon, Orange, Tyler, San Jacinto, Liberty, Jasper, Nacogdoches, San Augustine, Shelby, Newton

Dense Fog Advisory:

Bee, Calhoun, Goliad, Refugio, Victoria

Public Information Statement:

Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells, Kleberg, La Salle, Live Oak, McMullen, Nueces, Refugio, San Patricio, Victoria, Webb

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Utah

Record Report:

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Washington

Areal Flood Watch:

Mason, Whatcom

Coastal Flood Advisory:

South Washington Coast

Special Weather Statement:

Central Coast, North Coast, Olympics, South Washington Cascades, South Washington Coast, West Slopes Central Cascades and Passes, West Slopes Northern Cascades and Passes, Willapa Hills

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Wyoming

Record Report:

Southwest Wyoming

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Be sure to check out our new

Interactive Tornado Map!

Current Warnings:

Alaska
Arizona
Arkansas
California
Florida
Georgia
Illinois
Iowa
Kansas
Kentucky
Louisiana
Michigan
Minnesota
Mississippi
Missouri
Montana
Nevada
North Carolina
North Dakota
Oklahoma
Oregon
South Dakota
Tennessee
Texas
Utah
Washington
Wyoming

Severe Weather Forecasts:

Severe Weather Maps and FAQs:

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