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U.S. Severe Weather Map
Updated: 10:05 PM GMT on November 20, 2009 — Edit My Time Zone
Click on a colored region of the map for details.
Full U.S. |
Northeast |
Southeast |
Midwest |
Southern Plains |
Northwest |
Southwest |
Alaska |
Hawaii |
Puerto Rico
Weather Warning Legend:
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- Tornado Warning A tornado warning is issued when a funnel cloud has been spotted or a rotating thunderstorm has been indicated by doppler radar. |
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- Tornado Watch A tornado watch is issued when thunderstorms in and near the watch box area may produce tornadoes. |
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- Severe Thunderstorm Warning A severe thunderstorm warning is issued when a storm with any of these severe weather criteria is approaching the warning area:
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- 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:
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- Winter Weather Statement A winter weather advisory is issued when significant accumulations of snow, sleet, or freezing rain may affect the advisory area. |
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- 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. |
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- Flood Warning A flood warning is issued when flooding is occuring or is about to occur. |
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- Flood Watch / Flood Statement A flood watch is issued when flooding is possible in the watch area. |
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- 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. |
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- 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. |
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- 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. |
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- 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. |
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- Hurricane Watch A Hurricane Watch means hurricane conditions are possible in the next 24 hours. |
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- Hurricane Warning A Hurricane Warning means hurricane conditions are expected in the next 24 hours. |
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- Tropical Storm Watch A Tropical Storm warning means tropical storm conditions are possible in the next 24 hours. |
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- Tropical Storm Warning A Tropical Storm warning means tropical storm conditions are expected in the next 24 hours. |
Alaska
Special Weather Statement:
Record Report:
Alaska Peninsula, Anchorage, Baldwin Peninsula and Selawik Valley, Bristol Bay, Central Aleutians, Central Beaufort Sea Coast, Central Interior, Chukchi Sea Coast, Copper River Basin, Deltana and Tanana Flats, Denali, Eastern Alaska Range, Eastern Aleutians, Eastern Beaufort Sea Coast, Eastern Norton Sound and Nulato Hills, Kodiak Island, Kuskokwim Delta, Lower Kobuk and Noatak Valleys, Lower Koyukuk and Middle Yukon Valleys, Lower Kuskokwim Valley, Lower Yukon Valley, Matanuska Valley, Middle Tanana Valley, Northeast Prince William Sound, Northeastern Brooks Range, Northern and Interior Seward Peninsula, Northern Arctic Coast, Northwestern Brooks Range, Pribilof Islands, Southeast Prince William Sound, Southeastern Brooks Range, Southern Seward Peninsula Coast, St Lawrence Island and Bering Strait Coast, Susitna Valley, Upper Kobuk and Noatak Valleys, Upper Koyukuk Valley, Upper Kuskokwim Valley, Upper Tanana Valley and the Fortymile Country, Western Aleutians, Western Arctic Coast, Western Kenai Peninsula, Western Prince William Sound, Yukon Delta, Yukon Flats and Surrounding Uplands
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Arizona
Public Information Statement:
Black Mesa Area, Chinle Valley, Chuska Mountains and Defiance Plateau, Coconino Plateau, Eastern Mogollon Rim, Grand Canyon Country, Greater Phoenix Area, Kaibab Plateau, Little Colorado River Valley in Apache County, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County, Lower Colorado River Valley AZ, Marble and Glen Canyons, Northeast Plateaus and Mesas Hwy 264 Northward, Northeast Plateaus and Mesas South of Hwy 264, Northern Gila County, Northwest and North Central Pinal County, Northwest Maricopa County, Oak Creek and Sycamore Canyons, Southern Gila/Tonto NF Foothills, Southwest Deserts, Southwest Maricopa County, West Central Deserts, Western Mogollon Rim, White Mountains, Yavapai County Mountains, Yavapai County Valleys and Basins, Yuma/Martinez Lake and Vicinity
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Arkansas
Flood Warning:
Public Information Statement:
Arkansas, Baxter, Boone, Bradley, Calhoun, Clark, Cleburne, Cleveland, Conway, Dallas, Desha, Drew, Faulkner, Fulton, Garland, Grant, Hot Spring, Independence, Izard, Jackson, Jefferson, Johnson, Lincoln, Logan, Lonoke, Marion, Monroe, Montgomery, Newton, Ouachita, Perry, Pike, Polk, Pope, Prairie, Pulaski, Saline, Scott, Searcy, Sharp, Stone, Van Buren, White, Woodruff, Yell
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California
High Wind Warning:
Wind Advisory:
Carquinez Strait and Delta, Central Sacramento Valley, Clear Lake/Southern Lake County, Northern Sacramento Valley, Northern San Joaquin Valley, Owens Valley, Southern Sacramento Valley, White Mountains of Inyo County
Winter Storm Warning:
Burney Basin / Eastern Shasta County, Greater Lake Tahoe Area, Lassen-Eastern Plumas-Eastern Sierra Counties, Mountains Southwestern Shasta County to Northern Lake County, North Central and Southeast Siskiyou County, Shasta Lake Area / Northern Shasta County, Sierra Nevada from Yosemite to Kings Canyon, South Central Siskiyou County, West Slope Northern Sierra Nevada, Western Plumas County/Lassen Park
Winter Weather Advisory:
Central Siskiyou County, Modoc County, Northeast Siskiyou and Northwest Modoc Counties, Upper Trinity River, Western Siskiyou County
Special Weather Statement:
Public Information Statement:
Apple and Lucerne Valleys, Coachella Valley, Imperial County, Joshua Tree National Park, Lower Colorado River Valley CA, Mendocino Coast, Mendocino Interior, North Coast Interior, Orange County Coastal Areas, Redwood Coast, Riverside County Mountains, Riverside County/Eastern Deserts, 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, Santa Ana Mountains and Foothills, Upper Trinity River
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Colorado
Public Information Statement:
Boulder and Jefferson Counties Below 6000 Feet/West Broomfield County, Central and East Adams and Arapahoe Counties, Central and South Weld County, Central and Southeast Park County, Elbert/Central and East Douglas Counties Above 6000 Feet, Grand and Summit Counties Below 9000 Feet, Jackson County Below 9000 Feet, Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet, Larimer and Boulder Counties Between 6000 and 9000 Feet, Larimer County Below 6000 Feet/Northwest Weld County, Logan County, Morgan County, North and Northeast Elbert County Below 6000 Feet/North Lincoln County, North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County, Northeast Weld County, Phillips County, Sedgwick County, South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet, South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet, Southeast Elbert County Below 6000 Feet/South Lincoln County, Washington County, West Jackson and West Grand Counties Above 9000 Feet
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Florida
Flood Warning:
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Georgia
Flood Warning:
Dodge, Wheeler, Telfair, Treutlen, Wilcox, Screven, Effingham, Appling, Toombs, Jeff Davis, Montgomery
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Idaho
Wind Advisory:
Winter Weather Advisory:
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Illinois
Flood Warning:
Jackson, Union, Brown, Cass, Mason, Schuyler, Pike, Scott, Morgan, Piatt, Madison, Randolph, Alexander, Fulton, Clay, Richland, Jersey, Menard
Areal Flood Warning:
Flood Advisory:
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
Flood Advisory:
Public Information Statement:
: Top of Page :
Iowa
Public Information Statement:
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Kansas
Dense Fog Advisory:
Allen, Butler, Chautauqua, Cowley, Elk, Greenwood, Harper, Harvey, Kingman, Labette, Montgomery, Neosho, Reno, Sedgwick, Sumner, Wilson, Woodson
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Louisiana
Flood Warning:
Caldwell, Ouachita, Union, Webster, Franklin, East Baton Rouge, St. Mary, Calcasieu, Beauregard, Pointe Coupee, West Feliciana
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Maine
Wind Advisory:
Public Information Statement:
Androscoggin, Central Penobscot, Central Piscataquis, Central Somerset, Central Washington, Coastal Cumberland, Coastal Hancock, Coastal Waldo, Coastal Washington, Coastal York, Interior Cumberland, Interior Hancock, Interior Waldo, Interior York, Kennebec, Knox, Lincoln, Northeast Aroostook, Northern Franklin, Northern Oxford, Northern Penobscot, Northern Piscataquis, Northern Somerset, Northern Washington, Northwest Aroostook, Sagadahoc, Southeast Aroostook, Southern Franklin, Southern Oxford, Southern Penobscot, Southern Piscataquis, Southern Somerset
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Minnesota
Public Information Statement:
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Mississippi
Lake Wind Advisory:
: Top of Page :
Missouri
Flood Warning:
Perry, Scott, St. Charles, Chariton, Gasconade, Linn, Livingston, Carroll, Cape Girardeau, Montgomery, Jefferson, St. Louis
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Montana
Lake Wind Advisory:
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Nebraska
Public Information Statement:
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Nevada
Wind Advisory:
Esmeralda and Central Nye County, Northern Nye County, Southern Lander County and Southern Eureka County, Western Clark and Southern Nye County, White Pine County
High Wind Warning:
Dust Storm Warning:
Winter Storm Warning:
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New Hampshire
Public Information Statement:
Belknap, Coastal Rockingham, Interior Rockingham, Merrimack, Northern Carroll, Northern Coos, Northern Grafton, Southern Carroll, Southern Coos, Southern Grafton, Strafford, Sullivan
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New York
Record Report:
Allegany, Cattaraugus, Chautauqua, Genesee, Jefferson, Lewis, Livingston, Monroe, Niagara, Northern Cayuga, Northern Erie, Ontario, Orleans, Oswego, Southern Erie, Wayne, Wyoming
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North Carolina
Flood Warning:
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North Dakota
Public Information Statement:
Adams, Billings, Bottineau, Bowman, Burke, Burleigh, Dickey, Divide, Dunn, Emmons, Foster, Golden Valley, Grant, Hettinger, Kidder, La Moure, Logan, McHenry, McIntosh, McKenzie, McLean, Mercer, Morton, Mountrail, Oliver, Pierce, Renville, Rolette, Sheridan, Sioux, Slope, Stark, Stutsman, Ward, Wells, Williams
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Oregon
High Wind Warning:
Winter Weather Advisory:
Cascades in Lane County, Eastern Douglas County Foothills, Klamath Basin, Northern and Eastern Klamath County and Western Lake County, Northern Oregon Cascades, Siskiyou Mountains and Southern Oregon Cascades, South Central Oregon Cascades
Public Information Statement:
Cascade Foothills in Lane County, Cascades in Lane County, Central Coast Range of Western Oregon, Central Oregon, Central Oregon Coast, Central Willamette Valley, Coast Range of Northwest Oregon, East Columbia River Gorge, Foothills of the Blue Mountains, Grande Ronde Valley, Greater Portland Metro Area, John Day Basin, Lower Columbia, Lower Columbia Basin, North Central Oregon, North Oregon Coast, Northern Blue Mountains of Oregon, Northern Oregon Cascade Foothills, Northern Oregon Cascades, Northern Wheeler and Southern Gilliam Counties, Ochoco-John Day Highlands, South Willamette Valley, Southern Blue Mountains of Oregon, Upper Hood River Valley, Wallowa County, Western Columbia River Gorge
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Pennsylvania
Public Information Statement:
Adams, Bedford, Blair, Cambria, Cameron, Clearfield, Columbia, Cumberland, Dauphin, Elk, Franklin, Fulton, Huntingdon, Juniata, Lancaster, Lebanon, McKean, Mifflin, Montour, Northern Centre, Northern Clinton, Northern Lycoming, Northumberland, Perry, Potter, Schuylkill, Snyder, Somerset, Southern Centre, Southern Clinton, Southern Lycoming, Sullivan, Tioga, Union, Warren, York
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Puerto Rico
Areal Flood Warning:
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South Carolina
Flood Warning:
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South Dakota
Flood Warning:
Wind Advisory:
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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Texas
Flood Warning:
Bee, Bowie, Angelina, Cass, Polk, Morris, Tyler, Liberty, Hunt, Rockwall, Victoria, Houston, Trinity, Orange, Smith, Wood, Nueces, Newton, San Patricio
Coastal Flood Warning:
Flood Warning:
Coastal Flood Warning:
Flash Flood Warning:
Flood Warning, Flash Flood Warning:
Areal Flood Warning:
Flash Flood Warning:
Areal Flood Advisory:
Flash Flood Watch:
Areal Flood Advisory, Flash Flood Watch:
Special Weather Statement:
Record Report:
Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells, Kleberg, La Salle, Live Oak, McMullen, Nueces, Refugio, San Patricio, Victoria, Webb
Public Information Statement:
Bailey, Briscoe, Castro, Childress, Cochran, Cottle, Crosby, Dickens, Floyd, Garza, Hale, Hall, Hockley, Kent, King, Lamb, Lubbock, Lynn, Motley, Parmer, Stonewall, Swisher, Terry, Yoakum
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Utah
Wind Advisory:
Great Salt Lake Desert and Mountains, Salt Lake and Tooele Valleys, Southwest Utah, West Central Utah
: Top of Page :
Virginia
Flood Warning:
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Washington
Flood Warning, Areal Flood Warning:
Flood Warning:
Areal Flood Warning:
Areal Flood Watch:
Winter Weather Advisory:
South Washington Cascades, West Slopes Central Cascades and Passes, West Slopes Northern Cascades and Passes
Public Information Statement:
East Columbia River Gorge, East Slopes of the Central Cascades, East Slopes of the Southern Cascades, Foothills of the Blue Mountains, Greater Vancouver Area, Kittitas Valley, Lower Columbia and I - 5 Corridor in Cowlitz County, Lower Columbia Basin, Northwest Blue Mountains, South Washington Cascade Foothills, South Washington Cascades, South Washington Coast, Western Columbia River Gorge, Willapa Hills, Yakima Valley
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