U.S. Severe Weather Map

Updated: 6:25 PM GMT on August 28, 2008 — 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 Statement
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

Alabama

Public Information Statement:

Autauga, Barbour, Bibb, Blount, Bullock, Calhoun, Chambers, Cherokee, Chilton, Clay, Cleburne, Colbert, Coosa, Cullman, Dallas, De Kalb, Elmore, Etowah, Fayette, Franklin, Greene, Hale, Jackson, Jefferson, Lamar, Lauderdale, Lawrence, Lee, Limestone, Lowndes, Macon, Madison, Marion, Marshall, Montgomery, Morgan, Perry, Pickens, Pike, Randolph, Russell, Shelby, St. Clair, Sumter, Talladega, Tallapoosa, Tuscaloosa, Walker, Winston

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Arizona

Excessive Heat Warning:

Lake Havasu and Fort Mohave, Lake Mead National Recreation Area, Northwest Deserts

Record Report:

Black Mesa Area, Chinle Valley, Chuska Mountains and Defiance Plateay, Coconino Plateau, Eastern Mogollon Rim, Grand Canyon Country, Kaibab Plateau, Little Colorado River Valley in Apache County, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County, Marble and Glen Canyons, Northeast Plateaus and Mesas Hwy 264 Northward, Northeast Plateaus and Mesas South of Hwy 264, Northern Gila County, Oak Creek and Sycamore Canyons, Western Mogollon Rim, White Mountains, Yavapai County Mountains, Yavapai County Valleys and Basins

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Arkansas

Flood Warning:

Jackson, Woodruff

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California

Heat Advisory:

East Bay Interior Valleys, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, San Francisco, San Francisco Bay Shoreline, Santa Clara Valley Including San Jose

Excessive Heat Warning:

Cadiz Basin, Death Valley National Park, Eastern Mojave Desert, Including the Mojave National Preserve, Morongo Basin, Owens Valley, San Bernardino County-Upper Colorado River Valley, Western Mojave Desert

Fire Weather Warning:

Burney Basin / Eastern Shasta County, Carquinez Strait and Delta, Central Sacramento Valley, Clear Lake/Southern Lake County, Motherlode, Mountains Southwestern Shasta County to Northern Lake County, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Shasta Lake Area / Northern Shasta County, West Slope Northern Sierra Nevada, Western Plumas County/Lassen Park, Western Siskiyou County

Special Weather Statement:

Burney Basin / Eastern Shasta County, Carquinez Strait and Delta, Central Sacramento Valley, Clear Lake/Southern Lake County, East-Central San Joaquin Valley, Indian Wells Valley, Kern County Mountains, Mariposa Madera and Fresno County Foothills, Mendocino Interior, Motherlode, Mountains Southwestern Shasta County to Northern Lake County, North Coast Interior, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Northern San Joaquin Valley, Shasta Lake Area / Northern Shasta County, Sierra Nevada from Yosemite to Kings Canyon, Southeastern Kern County Desert, Southeastern San Joaquin Valley, Southern Sacramento Valley, Southwestern San Joaquin Valley, Tulare County Foothills, Tulare County Mountains, Upper Trinity River, West Slope Northern Sierra Nevada, West-Central San Joaquin Valley, Western Plumas County/Lassen Park

Record Report:

San Francisco, unknown, unknown, unknown, unknown, unknown, unknown, unknown, unknown

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Colorado

Public Information Statement:

Cheyenne County, Kit Carson County, Yuma County

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District of Columbia

Public Information Statement:

District of Columbia

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Florida

Flood Warning:

Baker, Jefferson, Alachua, Nassau, Bradford, Glades, Seminole, Columbia, Madison, Taylor, Calhoun, Gilchrist, Franklin, Gulf, Liberty, Suwannee, Volusia, Lake, Union, Gadsden, Wakulla

Areal Flood Warning:

Lee

Areal Flood Advisory:

Flagler, Marion, Putnam, St. Johns

Public Information Statement:

Charlotte, Citrus, De Soto, Hardee, Hernando, Highlands, Hillsborough, Lee, Levy, Manatee, Pasco, Pinellas, Polk, Sarasota, Sumter

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Georgia

Flood Warning:

Camden, Charlton, Decatur, Miller, Seminole

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Iowa

Public Information Statement:

Adair, Adams, Allamakee, Appanoose, Audubon, Black Hawk, Boone, Bremer, Buena Vista, Butler, Calhoun, Carroll, Cass, Cerro Gordo, Cherokee, Chickasaw, Clarke, Clay, Clayton, Crawford, Dallas, Davis, Decatur, Dickinson, Emmet, Fayette, Floyd, Franklin, Fremont, Greene, Grundy, Guthrie, Hamilton, Hancock, Hardin, Harrison, Howard, Humboldt, Ida, Jasper, Keokuk, Kossuth, Louisa, Lucas, Lyon, Madison, Mahaska, Marion, Marshall, Mills, Mitchell, Monona, Monroe, Montgomery, O'Brien, Osceola, Page, Palo Alto, Plymouth, Pocahontas, Polk, Pottawattamie, Poweshiek, Ringgold, Sac, Shelby, Sioux, Story, Tama, Taylor, Union, Wapello, Warren, Washington, Wayne, Webster, Winnebago, Winneshiek, Woodbury, Worth, Wright

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Kansas

Public Information Statement:

Bourbon, Cherokee, Cheyenne, Crawford, Decatur, Gove, Graham, Greeley, Logan, Norton, Rawlins, Sheridan, Sherman, Thomas, Wallace, Wichita

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Kentucky

Record Report:

Bath, Bell, Breathitt, Clay, Elliott, Estill, Fleming, Floyd, Harlan, Jackson, Johnson, Knott, Knox, Laurel, Lee, Leslie, Letcher, Magoffin, Martin, McCreary, Menifee, Montgomery, Morgan, Owsley, Perry, Pike, Powell, Pulaski, Rockcastle, Rowan, Wayne, Whitley, Wolfe

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Louisiana

Public Information Statement:

Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron, Evangeline, Iberia, Jefferson Davis, Lafayette, Lower St. Martin, Rapides, St. Landry, St. Mary, Upper St. Martin, Vermilion, Vernon

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Maryland

Public Information Statement:

Anne Arundel, Calvert, Carroll, Charles, Frederick, Howard, Montgomery, Northern Baltimore, Prince Georges, Southern Baltimore, St. Marys, unknown, Washington

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Michigan

Lakeshore Flood Statement:

Alcona, Alpena, Arenac, Iosco

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Minnesota

Public Information Statement:

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Missouri

Public Information Statement:

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

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Montana

High Wind Warning:

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

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Nebraska

Public Information Statement:

Antelope, Boone, Burt, Butler, Cass, Cedar, Colfax, Cuming, Dakota, Dixon, Dodge, Douglas, Dundy, Gage, Hitchcock, Jefferson, Johnson, Knox, Lancaster, Madison, Nemaha, Otoe, Pawnee, Pierce, Platte, Red Willow, Richardson, Saline, Sarpy, Saunders, Seward, Stanton, Thurston, Washington, Wayne

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Nevada

Excessive Heat Warning:

Lake Mead National Recreation Area, Las Vegas Valley, Northeast Clark County, Southern Clark County, Western Clark and Southern Nye County

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New Jersey

Coastal Flood Statement:

Atlantic Coastal Cape May, Coastal Atlantic, Coastal Ocean, Eastern Monmouth

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New Mexico

Special Weather Statement:

Eddy County Plains, Guadalupe Mountains of Eddy County

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North Carolina

Flood Warning:

Chatham

Coastal Flood Statement:

Eastern Dare

Flood Watch / Flood Statement:

Edgecombe, Wilson

Special Weather Statement:

Martin, Pitt

Record Report:

Alleghany, Ashe, Bladen, Brunswick, Caswell, Columbus, Guilford, New Hanover, Pender, Robeson, Rockingham, Stokes, Surry, Watauga, Wilkes, Yadkin

Public Information Statement:

Alamance, Alleghany, Anson, Ashe, Caswell, Chatham, Cherokee, Clay, Cumberland, Davidson, Durham, Edgecombe, Forsyth, Franklin, Granville, Guilford, Halifax, Harnett, Hoke, Johnston, Lee, Montgomery, Moore, Nash, Orange, Person, Randolph, Richmond, Rockingham, Sampson, Scotland, Stanly, Stokes, Surry, Vance, Wake, Warren, Watauga, Wayne, Wilkes, Wilson, Yadkin

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North Dakota

Fire Weather Warning:

Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger, McKenzie, Slope, Stark

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Oregon

Fire Weather Warning:

Eastern Curry County and Josephine County, Jackson County

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South Carolina

Flood Watch:

Calhoun, Lexington, Richland

Record Report:

Darlington, Dillon, Florence, Georgetown, Horry, Marion, Marlboro, Williamsburg

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South Dakota

Public Information Statement:

Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix, Clay, Davison, Douglas, Gregory, Hanson, Hutchinson, Jerauld, Kingsbury, Lake, Lincoln, McCook, Miner, Minnehaha, Moody, Sanborn, Turner, Union, Yankton

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Tennessee

Public Information Statement:

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Texas

Flood Warning:

Presidio

Record Report:

McLennan

Public Information Statement:

Hardin, Jasper, Jefferson, Newton, Orange, Tyler

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Utah

Special Weather Statement:

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Virginia

Flood Warning:

Halifax

Areal Flood Warning:

Chesterfield

Record Report:

Alleghany, Amherst, Appomattox, Bath, Bedford, Bland, Botetourt, Buckingham, Campbell, Carroll, Charlotte, Craig, Floyd, Franklin, Giles, Grayson, Halifax, Henry, Montgomery, Patrick, Pittsylvania, Pulaski, Roanoke, Rockbridge, Smyth, Tazewell, Wythe

Public Information Statement:

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West Virginia

Record Report:

Greenbrier, Mercer, Monroe, Summers

Public Information Statement:

Berkeley, Greenbrier, Hampshire, Hardy, Jefferson, Mercer, Monroe, Morgan, Pendleton, Summers, unknown, unknown

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Wisconsin

Public Information Statement:

Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond Du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marquette, Menominee, Milwaukee, Monroe, Northern Marinette County, Northern Oconto County, Oneida, Outagamie, Ozaukee, Pepin, Pierce, Polk, Portage, Price, Racine, Richland, Rock, Rusk, Sauk, Sawyer, Shawano, Sheboygan, St. Croix, Taylor, Trempealeau, Vernon, Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, Winnebago, Wood

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Wyoming

Special Weather Statement:

Southwest Wyoming

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Current Warnings:

Alabama
Arizona
Arkansas
California
Colorado
District of Columbia
Florida
Georgia
Iowa
Kansas
Kentucky
Louisiana
Maryland
Michigan
Minnesota
Missouri
Montana
Nebraska
Nevada
New Jersey
New Mexico
North Carolina
North Dakota
Oregon
South Carolina
South Dakota
Tennessee
Texas
Utah
Virginia
West Virginia
Wisconsin
Wyoming

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