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U.S. Severe Weather Map
Updated: 6:35 AM GMT on August 28, 2008 — Edit My Time Zone
Click on a colored region of the map for details.
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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. |
Alabama
Flood Warning:
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Arizona
Excessive Heat Watch:
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
Public Information Statement:
Black Mesa Area, Chinle Valley, Chuska Mountains and Defiance Plateay, Cochise County, 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, Northern Greenlee, Northwest and North Central Pinal County, Northwest Maricopa County, Oak Creek and Sycamore Canyons, Santa Cruz County, Southeast Pinal County, Southern Gila/Tonto NF Foothills, Southwest Deserts, Southwest Maricopa County, Tohono Oodham Nation, Tucson Metro/Marana/Green Valley, Upper Gila River Valley, West Central Deserts, Western Mogollon Rim, Western Pima County, White Mountains, Yavapai County Mountains, Yavapai County Valleys and Basins, Yuma/Martinez Lake and Vicinity
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Arkansas
Flood Warning:
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California
Heat Advisory:
East Bay Interior Valleys, San Francisco, San Francisco Bay Shoreline, Santa Clara Valley Including San Jose
Excessive Heat Watch:
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:
East-Central San Joaquin Valley, Indian Wells Valley, Kern County Mountains, Mariposa Madera and Fresno County Foothills, Mendocino Interior, North Coast Interior, Sierra Nevada from Yosemite to Kings Canyon, Southeastern Kern County Desert, Southeastern San Joaquin Valley, Southwestern San Joaquin Valley, Tulare County Foothills, Tulare County Mountains, Upper Trinity River, West-Central San Joaquin Valley
Record Report:
Public Information Statement:
Imperial County, Joshua Tree National Park, Lower Colorado River Valley CA, Riverside County/Eastern Deserts
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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, Leon, Wakulla
Areal Flood Warning:
Areal Flood Advisory:
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Georgia
Flood Warning:
Public Information Statement:
Baldwin, Banks, Barrow, Bartow, Bibb, Butts, Carroll, Catoosa, Chattooga, Cherokee, Clarke, Clayton, Cobb, Coweta, Crawford, Dade, Dawson, DeKalb, Douglas, Emanuel, Fannin, Fayette, Floyd, Forsyth, Gilmer, Glascock, Gordon, Greene, Gwinnett, Hall, Hancock, Haralson, Harris, Heard, Henry, Jackson, Jasper, Jefferson, Johnson, Jones, Lamar, Lumpkin, Madison, Meriwether, Monroe, Morgan, Murray, Newton, North Fulton, Oconee, Oglethorpe, Paulding, Pickens, Pike, Polk, Putnam, Rockdale, South Fulton, Spalding, Talbot, Taliaferro, Taylor, Towns, Troup, Twiggs, Union, Upson, Walker, Walton, Warren, Washington, White, Whitfield, Wilkes, Wilkinson
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Idaho
Record Report:
Boise Mountains, Camas Prairie, Lower Treasure Valley, Owyhee Mountains, Southern Twin Falls County, Southwest Highlands, Upper Treasure Valley, West Central Mountains, Western Magic Valley
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Iowa
Severe Thunderstorm Warning:
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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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Michigan
Public Information Statement:
Alger, Baraga, Delta, Dickinson, Gogebic, Iron, Keweenaw, Luce, Marquette, Menominee, Northern Houghton, Ontonagon, Southern Schoolcraft
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Minnesota
Public Information Statement:
Anoka, Benton, Blue Earth, Brown, Carver, Chippewa, Chisago, Dakota, Douglas, Faribault, Freeborn, Goodhue, Hennepin, Isanti, Kanabec, Kandiyohi, Lac qui Parle, Le Sueur, Martin, McLeod, Meeker, Mille Lacs, Morrison, Nicollet, Pope, Ramsey, Redwood, Renville, Rice, Scott, Sherburne, Sibley, Stearns, Steele, Stevens, Swift, Todd, Waseca, Washington, Watonwan, Wright, Yellow Medicine
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Nebraska
Severe Thunderstorm Warning:
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Nevada
Excessive Heat Watch:
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 Mexico
Special Weather Statement:
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North Carolina
Flood Warning:
Flash Flood Warning:
Flash Flood Watch:
Areal Flood Advisory:
Special Weather Statement:
Record Report:
Alleghany, Ashe, Bladen, Brunswick, Buncombe, Caswell, Columbus, Mecklenburg, New Hanover, Pender, Robeson, Rockingham, Stokes, Surry, Watauga, Wilkes, Yadkin
Public Information Statement:
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Oregon
Fire Weather Warning:
Record Report:
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Puerto Rico
Areal Flood Warning:
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South Carolina
Flood Watch:
Record Report:
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Tennessee
Record Report:
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Virginia
Flash Flood Warning:
Flash Flood Watch:
Amherst, Appomattox, Bedford, Botetourt, Campbell, Carroll, Charlotte, Floyd, Franklin, Grayson, Halifax, Henry, Patrick, Pittsylvania, Roanoke, Rockbridge
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:
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
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West Virginia
Record Report:
Public Information Statement:
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Wisconsin
Public Information Statement:
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