U.S. Severe Weather Map

Updated: 7:05 AM GMT on November 21, 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 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

Alaska

Special Weather Statement:

Middle Tanana Valley

Record Report:

Alaska Peninsula, Anchorage, Bristol Bay, Central Aleutians, Copper River Basin, Eastern Aleutians, Kodiak Island, Kuskokwim Delta, Lower Kuskokwim Valley, Matanuska Valley, Northeast Prince William Sound, Pribilof Islands, Southeast Prince William Sound, Susitna Valley, Western Aleutians, Western Kenai Peninsula, Western Prince William Sound

Public Information Statement:

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Arkansas

Flood Warning:

White, Woodruff, Arkansas, Monroe, Jackson, Independence, Union, Ashley, Lawrence, Bradley, Calhoun

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California

Winter Weather Advisory:

Central Siskiyou County, Modoc County, Northeast Siskiyou and Northwest Modoc Counties, Western Siskiyou County

Winter Storm Warning:

North Central and Southeast Siskiyou County, South Central Siskiyou County

Public Information Statement:

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, Northern San Joaquin Valley, Shasta Lake Area / Northern Shasta County, Southern Sacramento Valley, West Slope Northern Sierra Nevada, Western Plumas County/Lassen Park

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Florida

Flood Warning:

Calhoun, Franklin, Gulf, Liberty

Dense Fog Advisory:

Glades, Hendry, Inland Broward County, Inland Collier County, Inland Miami-Dade County, Inland Palm Beach County

Public Information Statement:

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

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Georgia

Flood Warning:

Dodge, Wheeler, Telfair, Treutlen, Wilcox, Screven, Effingham, Appling, Toombs, Jeff Davis, Montgomery

Special Weather Statement:

Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley, Butts, Carroll, Catoosa, Chattahoochee, Chattooga, Cherokee, Clarke, Clayton, Cobb, Coweta, Crawford, Crisp, Dade, Dawson, DeKalb, Dodge, Dooly, Douglas, Emanuel, Fannin, Fayette, Floyd, Forsyth, Gilmer, Glascock, Gordon, Greene, Gwinnett, Hall, Hancock, Haralson, Harris, Heard, Henry, Houston, Jackson, Jasper, Jefferson, Johnson, Jones, Lamar, Laurens, Lumpkin, Macon, Madison, Marion, Meriwether, Monroe, Montgomery, Morgan, Murray, Muscogee, Newton, North Fulton, Oconee, Oglethorpe, Paulding, Peach, Pickens, Pike, Polk, Pulaski, Putnam, Rockdale, Schley, South Fulton, Spalding, Stewart, Sumter, Talbot, Taliaferro, Taylor, Telfair, Toombs, Towns, Treutlen, Troup, Twiggs, Union, Upson, Walker, Walton, Warren, Washington, Webster, Wheeler, White, Whitfield, Wilcox, Wilkes, Wilkinson

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Idaho

Wind Advisory:

Caribou Highlands, Lower Snake River Plain, South Central Highlands

Winter Weather Advisory:

Northern Clearwater Mountains, Southern Clearwater Mountains

Winter Storm Watch:

Central Panhandle Mountains, Northern Panhandle

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Illinois

Flood Warning:

Jackson, Union, Brown, Cass, Mason, Schuyler, Pike, Scott, Morgan, Piatt, Madison, Randolph, Alexander, Calhoun, Fulton, Clay, Richland, Jersey, Menard

Areal Flood Warning:

Logan

Dense Fog Advisory:

Bureau, Carroll, Ford, Fulton, Hancock, Henderson, Henry, Jo Daviess, Knox, La Salle, Lee, Livingston, Marshall, Mason, McDonough, McLean, Mercer, Ogle, Peoria, Putnam, Rock Island, Schuyler, Stark, Stephenson, Tazewell, Warren, Whiteside, Woodford

Public Information Statement:

Boone, Cook, DeKalb, DuPage, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, La Salle, Lake, Lee, Livingston, McHenry, Ogle, Will, Winnebago

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Indiana

Public Information Statement:

Benton, Dearborn, Fayette, Franklin, Jasper, Lake, Newton, Ohio, Porter, Ripley, Switzerland, Union, Wayne

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Iowa

Dense Fog Advisory:

Adair, Adams, Allamakee, Appanoose, Benton, Black Hawk, Boone, Bremer, Buchanan, Butler, Cedar, Cerro Gordo, Chickasaw, Clarke, Clayton, Clinton, Dallas, Davis, Decatur, Delaware, Des Moines, Dubuque, Fayette, Floyd, Franklin, Fremont, Grundy, Hamilton, Hancock, Hardin, Henry, Howard, Iowa, Jackson, Jasper, Jefferson, Johnson, Jones, Keokuk, Lee, Linn, Louisa, Lucas, Madison, Mahaska, Marion, Marshall, Mitchell, Monroe, Montgomery, Muscatine, Page, Polk, Poweshiek, Ringgold, Scott, Story, Tama, Taylor, Union, Van Buren, Wapello, Warren, Washington, Wayne, Winnebago, Winneshiek, Worth, Wright

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Kansas

Dense Fog Advisory:

Allen, Atchison, Barton, Butler, Chase, Chautauqua, Cowley, Doniphan, Elk, Ellsworth, Greenwood, Harper, Harvey, Kingman, Labette, Marion, McPherson, Montgomery, Neosho, Reno, Rice, Saline, Sedgwick, Sumner, Wilson, Woodson

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Kentucky

Public Information Statement:

Boone, Bracken, Campbell, Carroll, Gallatin, Grant, Kenton, Lewis, Mason, Owen, Pendleton, Robertson

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Louisiana

Flood Warning:

Caldwell, Ouachita, Union, Bossier, Webster, Franklin, East Baton Rouge, St. Mary, Calcasieu, Beauregard, Pointe Coupee, West Feliciana

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Maine

Public Information Statement:

Central Penobscot, Central Piscataquis, Central Washington, Coastal Hancock, Coastal Washington, Interior Hancock, Northeast Aroostook, Northern Penobscot, Northern Piscataquis, Northern Somerset, Northern Washington, Northwest Aroostook, Southeast Aroostook, Southern Penobscot, Southern Piscataquis

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Minnesota

Dense Fog Advisory:

Dodge, Fillmore, Goodhue, Houston, Mower, Olmsted, Wabasha, Winona

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Mississippi

Lake Wind Advisory:

Lauderdale, Madison, Rankin

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Missouri

Flood Warning:

Perry, Scott, St. Charles, Chariton, Linn, Livingston, Carroll, Cape Girardeau, Jefferson, St. Louis

Dense Fog Advisory:

Adair, Andrew, Atchison, Buchanan, Caldwell, Clark, Clinton, Daviess, De Kalb, Gentry, Grundy, Harrison, Holt, Linn, Livingston, Mercer, Nodaway, Putnam, Schuyler, Scotland, Sullivan, Worth

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Montana

Lake Wind Advisory:

Central and Southern Valley, Garfield, McCone

Record Report:

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Nebraska

Dense Fog Advisory:

Johnson, Nemaha, Otoe, Pawnee, Richardson

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Nevada

Wind Advisory:

Esmeralda and Central Nye County, Las Vegas Valley, Spring Mountains-Red Rock Canyon, Western Clark and Southern Nye County

Public Information Statement:

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

Flood Warning:

Martin

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Ohio

Public Information Statement:

Adams, Auglaize, Brown, Butler, Champaign, Clark, Clermont, Clinton, Darke, Delaware, Fairfield, Fayette, Franklin, Greene, Hamilton, Hardin, Highland, Hocking, Licking, Logan, Madison, Mercer, Miami, Montgomery, Pickaway, Pike, Preble, Ross, Scioto, Shelby, Union, Warren

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Oklahoma

Public Information Statement:

Beaver, Cimarron, Texas

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Oregon

High Wind Watch:

Central Oregon Coast, North Oregon Coast

Winter Weather Advisory:

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

Winter Storm Watch, Winter Weather Advisory:

Cascades in Lane County, Northern Oregon Cascades

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South Carolina

Flood Warning:

Allendale, Hampton, Jasper

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South Dakota

Flood Warning:

Spink

Wind Advisory:

Northern Foot Hills, Sturgis/Piedmont Foot Hills

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Texas

Flood Warning:

Karnes, Bowie, Angelina, Cass, Polk, Morris, Tyler, Liberty, Hunt, Rockwall, Calhoun, Victoria, Houston, Trinity, Orange, Smith, Wood, DeWitt, Newton, Refugio

Flood Warning:

Guadalupe

Coastal Flood Warning:

Chambers

Coastal Flood Warning:

Brazoria, Galveston

Areal Flood Warning:

Collin

Coastal Flood Advisory:

Aransas, Calhoun, Kleberg, Nueces, Refugio, San Patricio

Flood Watch / Flood Statement:

Caldwell, Gonzales, DeWitt

Record Report:

Anderson, Aransas, Atascosa, Bandera, Bastrop, Bee, Bell, Bexar, Blanco, Bosque, Burnet, Caldwell, Calhoun, Collin, Comal, Comanche, Cooke, Coryell, Dallas, Delta, Denton, DeWitt, Dimmit, Duval, Eastland, Edwards, Ellis, Erath, Falls, Fannin, Fayette, Freestone, Frio, Gillespie, Goliad, Gonzales, Grayson, Guadalupe, Hamilton, Hays, Henderson, Hill, Hood, Hopkins, Hunt, Jack, Jim Wells, Johnson, Karnes, Kaufman, Kendall, Kerr, Kinney, Kleberg, La Salle, Lamar, Lampasas, Lavaca, Lee, Leon, Limestone, Live Oak, Llano, Maverick, McLennan, McMullen, Medina, Milam, Mills, Montague, Navarro, Nueces, Palo Pinto, Parker, Rains, Real, Refugio, Robertson, Rockwall, San Patricio, Somervell, Stephens, Tarrant, Travis, Uvalde, Val Verde, Van Zandt, Victoria, Webb, Williamson, Wilson, Wise, Young, Zavala

Public Information Statement:

Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley, Gray, Hansford, Hartley, Hemphill, Hutchinson, Lipscomb, Moore, Ochiltree, Oldham, Potter, Randall, Roberts, Sherman, Wheeler

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Utah

Wind Advisory:

Great Salt Lake Desert and Mountains, Salt Lake and Tooele Valleys

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Washington

Flood Warning:

Mason

Areal Flood Watch:

Grays Harbor

Winter Storm Watch, Winter Weather Advisory:

South Washington Cascades, West Slopes Central Cascades and Passes, West Slopes Northern Cascades and Passes

Winter Storm Watch:

East Slopes Northern Cascades, Northeast Mountains, Okanogan Highlands, Okanogan Valley, Olympics, Waterville Plateau

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Wisconsin

Dense Fog Advisory:

Adams, Barron, Buffalo, Chippewa, Clark, Crawford, Dunn, Eau Claire, Grant, Green, Iowa, Jackson, Juneau, La Crosse, Lafayette, Monroe, Pepin, Pierce, Polk, Price, Richland, Rusk, Sauk, St. Croix, Taylor, Trempealeau, Vernon

Special Weather Statement:

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Wyoming

Special Weather Statement:

Jackson Hole, Salt River and Wyoming Ranges, Star Valley, Teton and Gros Ventre Mountains, Yellowstone National Park

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Current Warnings:

Alaska
Arkansas
California
Florida
Georgia
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
North Carolina
Ohio
Oklahoma
Oregon
South Carolina
South Dakota
Texas
Utah
Washington
Wisconsin
Wyoming

Severe Weather Forecasts:

Severe Weather Maps and FAQs:

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