URGENT - WEATHER MESSAGE
National Weather Service Corpus Christi TX
221 AM CDT Thu Aug 20 2026
TXZ230>234-241>247-342>344-346-347-201530-
/O.NEW.KCRP.HT.Y.0011.260820T1700Z-260821T0000Z/
McMullen-Live Oak-Bee-Goliad-Victoria-Jim Wells-Inland Kleberg-
Inland Nueces-Inland San Patricio-Coastal Aransas-Inland Refugio-
Inland Calhoun-Coastal Kleberg-Coastal Nueces-Coastal San
Patricio-Coastal Refugio-Coastal Calhoun-
Including the cities of Orange Grove, Refugio, Bishop, Calliham,
Skidmore, Aransas Pass, Port O Connor, Three Rivers, Odem, Corpus
Christi, Fulton, Robstown, Victoria, Pettus, Rockport, Sinton,
Premont, Loma Alta, Riviera, Beeville, Pawnee, Taft, Bayside,
Austwell, Woodsboro, Seadrift, Portland, George West, Mathis, Tuloso,
Ingleside, Flour Bluff, Loyola Beach, Long Mott, Port Lavaca,
Bloomington, Goliad, Cross, Holiday Beach, Tilden, Ricardo, Alice,
and Kingsville
221 AM CDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...
* WHAT...Heat index values up to 112 expected.
* WHERE...Bee, Coastal Aransas, Coastal Calhoun, Coastal Kleberg,
Coastal Nueces, Coastal Refugio, Coastal San Patricio, Goliad,
Inland Calhoun, Inland Kleberg, Inland Nueces, Inland Refugio,
Inland San Patricio, Jim Wells, Live Oak, McMullen, and Victoria
Counties.
* WHEN...From noon today to 7 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
TE
URGENT - WEATHER MESSAGE
National Weather Service Charleston SC
250 AM EDT Thu Aug 20 2026
GAZ217>219-239>241-SCZ045-148>152-201500-
/O.CON.KCHS.HT.Y.0027.260820T1500Z-260821T0000Z/
Coastal Bryan-Inland Chatham-Coastal Chatham-Coastal Liberty-
Inland McIntosh-Coastal McIntosh-Inland Berkeley-Beaufort-Coastal
Colleton-Charleston-Coastal Jasper-Tidal Berkeley-
Including the cities of Daniel Island, Moncks Corner, Savannah, North
Charleston, Mount Pleasant, Edisto Beach, Wilmington Island, Garden
City, Goose Creek, Hilton Head Island, Beaufort, Jasper, Charleston,
Fort Mcallister, Townsend, Tybee Island, Levy, Oak Level, Pooler,
Darien, and Chelsea
250 AM EDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...Heat index values up to 110 expected.
* WHERE...Portions of southeast Georgia and southeast South Carolina.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tallahassee FL
236 AM EDT Thu Aug 20 2026
ALZ068-069-FLZ007>019-027>029-034-108-112-114-115-118-127-128-134-
326-426-GAZ155>161-201445-
/O.CAN.KTAE.HT.Y.0022.260820T1500Z-260821T0000Z/
/O.NEW.KTAE.HT.Y.0023.260820T1500Z-260821T0000Z/
Geneva-Houston-North Walton-Central Walton-Holmes-Washington-
Jackson-Inland Bay-Calhoun-Inland Gulf-Inland Franklin-Gadsden-
Leon-Inland Jefferson-Madison-Inland Wakulla-Inland Taylor-
Lafayette-Inland Dixie-South Walton-Coastal Bay-Coastal Gulf-
Coastal Franklin-Coastal Jefferson-Coastal Wakulla-Coastal Taylor-
Coastal Dixie-Northern Liberty-Southern Liberty-Seminole-Decatur-
Grady-Thomas-Brooks-Lowndes-Lanier-
Including the cities of Mayo, Blountstown, Panacea, Geneva, Morgan
Place, Lynn Haven, Blue Springs, Odena, Buckhorn, Vicksburg, Sumatra,
Youngstown, Chattahoochee, Quincy Airport, Cedar Island, Santa Rosa
Beach, Empress, Hanover, Nixon, Old Town, Eucheeanna, Pleasant Ridge,
Cottonwood, Tallahassee, Oak Grove, De Funiak Springs, Hopewell,
Jena, Madison, West Bainbridge, Hines, Abe Springs, Portland, Dothan,
Seminole State Park, Hartford, Scotts Ferry, Saint Marks, Horseshoe
Beach, Clarksville, Quincy, Callaway, Dills, Capel, Freeport,
Thomasville, Howard Creek, Athena, Fadette, Fenholloway, Midway,
Nankin, Wilma, Suwannee, Honeyville, Holmes County Airport, Killearn
Lakes, Argyle, Overstreet, Simsville, Medart, Twin Pole, Steinham
Store, Barker Store, Beachton, Pine Park, Chaires,
Econfina, Cooks Hammock, Brooks Co A/P, Chipley, Pinetta, New
Hope, Chaires Crossroads, Turquoise Beach, Quitman, Howell Place,
Creels, Elpino, Lovett, Orange Hill, Five Points, Dillon, Graceville,
Sneads, Frink, Drifton, Buckville, Bucell Junction,
Port St. Joe, Central City, Tilton, Jarrott, Decatur Co A/P,
Bonifay, Vilas, Browntown, Marianna, Richter Crossroads, Adams Beach,
Beacon Hill, White City, Lakeland, Santa Clara, Donalsonville, Alma,
Fish Creek, Cabbage Grove, Ganer, Wewahitchka, Crystal Lake,
Wetumpka, Dixie, Fairchild, Center Ridge, Capitola, Killearn Estates,
Casa Blanco, Wakulla Springs, Dekle Beach, Sandestin, Hardin Heights,
Valdosta Regional Airport, Southport, Glendale, Lewis, Festus,
Leonia, Cobb Crossroads, Dalkeith, Metcalf, Davis Park, Poplar Head,
Apalachicola Airport, Cluster Springs, Lynn, Point Washington,
Moncrief, De Funiak Spring Airport, Bainbridge, Teeterville,
Marysville, Cross City Airport, Malone, Maclay State Gardens, Perry,
Riverturn, Bethel, Grooverville, Hacoda, Monticello, Hilliardville,
Alpine Heights, Bay City, Ashford, Pasco, Grady Co
A/P, Sopchoppy, Cross City, Logan Field Municipal A/P, Chipley
Municipal Airport, Jonesboro, Fort Gadsden, Bunker, Carbur,
Valdosta, Beverly, Ausmac, Day, Cairo, Donaldsonville A/P,
Sweetwater, Hays Place, Capps, Little Hope, High Bluff,
Apalachicola, Geneva Municipal A/P, Panama City, Buck Siding,
Hanson, Yellow Jacket, Courthouse, Cherry Lake, Boyd, Magnolia Beach,
Port Leon, Littman, Saint Joe Beach, Durham, Shired Island,
Bradfordville, Bennett, and Kern
236 AM EDT Thu Aug 20 2026 /136 AM CDT Thu Aug 20 2026/
...HEAT ADVISORY IN EFFECT FROM 11 AM EDT /10 AM CDT/ THIS MORNING TO
8 PM EDT /7 PM CDT/ THIS EVENING...
* WHAT...Heat index values up to 112 expected.
* WHERE...Portions of southeast Alabama, Big Bend and Panhandle
Florida, and south central and southwest Georgia.
* WHEN...From 11 AM EDT /10 AM CDT/ this morning to 8 PM EDT /7 PM
CDT/ this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tallahassee FL
236 AM EDT Thu Aug 20 2026
ALZ065>067-201445-
/O.NEW.KTAE.HT.Y.0023.260820T1500Z-260821T0000Z/
Coffee-Dale-Henry-
Including the cities of Blackwell Field A/P, Asbury, Beamon,
Enterprise, Ewell, Fort Rucker, Blackwood, Dill, Enterprise
Municipal A/P, Headland, Daleville, Ozark, Abbeville, Browns
Crossroads, Keyton, Battens Crossroads, Abbeville Municipal A/P,
Screamer, Mabson, Headland Municipal A/P, and Lawrenceville
136 AM CDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS
EVENING...
* WHAT...Heat index values up to 110 expected.
* WHERE...Coffee, Dale, and Henry Counties.
* WHEN...From 10 AM this morning to 7 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
231 AM EDT Thu Aug 20 2026
FLZ021-023-024-030-031-035-038-120-124-125-132-136>138-140-220-225-
232-233-236-237-240-322-325-333-340-422-425-433-522-533-633-GAZ153-
154-162-163-165-166-264-350-364-202300-
/O.CON.KJAX.HT.Y.0025.260820T1500Z-260820T2300Z/
Suwannee-Baker-Inland Nassau-Union-Bradford-Gilchrist-Inland
Flagler-Eastern Hamilton-Coastal Nassau-Coastal Duval-Eastern
Clay-Eastern Alachua-Eastern Putnam-Coastal Flagler-Eastern
Marion-Western Hamilton-Trout River-Western Clay-Northeast
Coastal St. Johns-Western Alachua-Western Putnam-Central Marion-
Northern Columbia-South Central Duval-Southeast Coastal St. Johns-
Western Marion-Southeastern Columbia-Western Duval-Northern
Inland St. Johns-Southwestern Columbia-Southern Inland St. Johns-
Western St. Johns-Inland Glynn-Coastal Glynn-Echols-Clinch-Inland
Camden-Coastal Camden-Northeastern Charlton-Southern Ware-Western
Charlton-
Including the cities of Dover Bluff, Sea Island, Anastasia, Green
Cove Springs, Burbank, Needmore, Orange Park, Anthony, Dungeness,
Dock Junction, White Springs, Kingsland, Jekyll Island, Saint
Augustine, New River, High Springs, Live Oak, Andalusia, Jasper,
Tarboro, St. George, Country Club Estate, Ocala Airport, Kings
Ferry, Saint Augustine Shore, Oleno State Park, Middleburg, Belmont,
Amelia City, Stephen Foster State Park, Fruit Cove, Newberry,
Gainesville Airport, Lakeside, Espanola, Carraway, Saint Augustine
Beach, Durbin, Jennings, Lulu, Watertown, Butler Beach, Winokur,
Ponte Vedra Beach, Lynne, Lake City, Ortega, Blue Springs,
Switzerland, Saint Augustine South, Jacksonville, Homerville, Starke,
Bakersville, Macclenny, West Lake, Colesburg, Fernandina Beach,
Winfield, Waverly, Trenton, Picolata, Yulee, Bunnell, Thalmann,
McAlpin, Ratliff, Palm Valley, Doctors Inlet, Suwannee Valley,
Woodbine, Houston, Hilliard, Gainesville, Bostwick, San Marco,
Archer, Folkston, Tallyrand, Statenville, Newburn, Homeland, Race
Pond, Normandy, Palm Coast, Suwannee
River Station, Columbia, Glynn Haven, St. Simons, Lake Butler,
Ocala, Suwannee Springs, Bellair, Olustee, Moss Bluff, Arlington,
Oceanway, Newnans Lake, Weirsdale, Dupont Center, Bryceville,
Palatka, and Riverside
231 AM EDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM
EDT THIS EVENING...
* WHAT...Heat index values up to 112 expected.
* WHERE...Portions of northeast and northern Florida and southeast
Georgia.
* WHEN...From 11 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
For more information, visit us at www.weather.gov/jax
NELSON
URGENT - WEATHER MESSAGE
National Weather Service Wilmington NC
229 AM EDT Thu Aug 20 2026
SCZ017-023-032-039-210000-
/O.EXB.KILM.HT.Y.0031.260820T1500Z-260821T0000Z/
Marlboro-Darlington-Florence-Williamsburg-
Including the cities of McColl, Florence, Bennettsville, North
Hartsville, Kingstree, Hartsville, and Darlington
229 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 106 expected.
* WHERE...Darlington, Florence, Marlboro, and Williamsburg Counties.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
129 AM CDT Thu Aug 20 2026
TXZ171>173-191>194-205>209-220>225-210000-
/O.CON.KEWX.HT.Y.0007.260820T1900Z-260824T0000Z/
Llano-Burnet-Williamson-Hays-Travis-Bastrop-Lee-Bexar-Comal-
Guadalupe-Caldwell-Fayette-Atascosa-Wilson-Karnes-Gonzales-DeWitt-
Lavaca-
Including the cities of Gonzales, Llano, Lockhart, Austin, Burnet,
Hallettsville, San Marcos, Pleasanton, Karnes City, New Braunfels,
Cuero, Floresville, Georgetown, La Grange, Bastrop, Giddings, Seguin,
and San Antonio
129 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM
CDT SUNDAY...
* WHAT...Temperatures up to 104 and heat index values up to 112
expected.
* WHERE...The northern Hill Country, I-35 Corridor, and Coastal
Plains.
* WHEN...From 2 PM this afternoon to 7 PM CDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
27
URGENT - WEATHER MESSAGE
National Weather Service Wilmington NC
229 AM EDT Thu Aug 20 2026
NCZ087-096-099-105>110-SCZ024-033-054>056-058-059-210000-
/O.EXT.KILM.HT.Y.0031.260820T1500Z-260821T0000Z/
Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New
Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick-
Dillon-Marion-Coastal Horry-Inland Georgetown-Coastal Georgetown-
Central Horry-Northern Horry-
Including the cities of Chadbourn, Aynor, Lumberton, Garden City,
Loris, Myrtle Beach, Conway, Leland, Mullins, Sunset Beach, Tabor
City, Long Beach, Bladenboro, Southport, Socastee, Whiteville, Little
River, Lake Waccamaw, Red Hill, Ogden, Surf City, Carolina Beach,
Burgaw, Boiling Spring Lakes, Shallotte, Marion, Seagate, Georgetown,
Murrells Inlet, Dillon, Elizabethtown, Andrews, Wilmington, Oak
Island, Myrtle Grove, North Myrtle Beach, and Masonboro
229 AM EDT Thu Aug 20 2026
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING...
* WHAT...Heat index values up to 109 expected.
* WHERE...Portions of southeast North Carolina and northeast South
Carolina.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
ABW
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
124 AM CDT Thu Aug 20 2026
TXZ135-146-148-201800-
/O.CON.KFWD.HT.Y.0025.000000T0000Z-260821T0100Z/
Henderson-Navarro-Anderson-
Including the cities of Gun Barrel City, Corsicana, Athens, and
Palestine
124 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
* WHAT...Heat index values up to 109.
* WHERE...Navarro, Anderson, and Henderson Counties.
* WHEN...Until 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.
Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, the occupational safety and health
administration recommends scheduling frequent rest breaks in shaded
or air conditioned environments. Anyone overcome by heat should be
moved to a cool and shaded location. Heat stroke is an emergency!
Call 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
124 AM CDT Thu Aug 20 2026
TXZ129-130-141>143-156>158-174-201800-
/O.CON.KFWD.HT.Y.0027.000000T0000Z-260821T0100Z/
Eastland-Erath-Comanche-Mills-Hamilton-Lampasas-Coryell-Bell-Milam-
Including the cities of Goldthwaite, Hamilton, Lampasas, Cisco, De
Leon, Rockdale, Dublin, Gorman, Comanche, Fort Hood, Killeen, Hico,
Cameron, Temple, Stephenville, Ranger, Gatesville, Eastland, and
Copperas Cove
124 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
* WHAT...Temperatures up to 103 and heat index values up to 107.
* WHERE...Bell, Comanche, Coryell, Eastland, Erath, Hamilton,
Lampasas, Mills, and Milam Counties.
* WHEN...Until 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.
Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, the occupational safety and health
administration recommends scheduling frequent rest breaks in shaded
or air conditioned environments. Anyone overcome by heat should be
moved to a cool and shaded location. Heat stroke is an emergency!
Call 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
124 AM CDT Thu Aug 20 2026
TXZ144-145-147-159>162-175-201800-
/O.CON.KFWD.HT.Y.0026.000000T0000Z-260821T0100Z/
Bosque-Hill-Freestone-McLennan-Falls-Limestone-Leon-Robertson-
Including the cities of Normangee, Hillsboro, Meridian, Marlin,
Teague, Clifton, Jewett, Oakwood, Groesbeck, Hearne, Franklin,
Buffalo, Centerville, Fairfield, Waco, Wortham, Valley Mills,
Calvert, and Mexia
124 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
* WHAT...Heat index values up to 109.
* WHERE...Bosque, Falls, Freestone, Hill, Limestone, McLennan, Leon,
and Robertson Counties.
* WHEN...Until 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.
Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, the occupational safety and health
administration recommends scheduling frequent rest breaks in shaded
or air conditioned environments. Anyone overcome by heat should be
moved to a cool and shaded location. Heat stroke is an emergency!
Call 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.
&&
$$
Stalley
URGENT - WEATHER MESSAGE
National Weather Service Norman OK
123 AM CDT Thu Aug 20 2026
OKZ023-027>039-044-045-TXZ083>090-210100-
/O.CON.KOUN.HT.Y.0040.260820T1800Z-260821T0100Z/
Caddo-Grady-McClain-Cleveland-Pottawatomie-Seminole-Hughes-Harmon-
Greer-Kiowa-Jackson-Tillman-Comanche-Stephens-Cotton-Jefferson-
Hardeman-Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
Including the cities of Hinton, Temple, Norman, Mangum, Lakeside
City, Holdenville, Henrietta, Holliday, Altus, Knox City, Archer
City, Ryan, Blanchard, Scotland, Crowell, Shawnee, Quanah, Hollis,
Wichita Falls, Frederick, Seymour, Lawton, Moore, Purcell, Wewoka,
Walters, Anadarko, Sheppard AFB, Granite, Wetumka, Chickasha, Snyder,
Ringling, Tuttle, Duncan, Waurika, Seminole, Newcastle, Hobart,
Munday, and Vernon
123 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING...
* WHAT...Heat index values up to 107 expected.
* WHERE...Portions of central, east central, southeast, southern, and
southwest Oklahoma and northern Texas.
* WHEN...From 1 PM this afternoon to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
JP
URGENT - WEATHER MESSAGE
National Weather Service Norman OK
123 AM CDT Thu Aug 20 2026
OKZ018-019-024>026-210100-
/O.EXA.KOUN.HT.Y.0040.260820T1800Z-260821T0100Z/
Kingfisher-Logan-Canadian-Oklahoma-Lincoln-
Including the cities of Wellston, Kingfisher, Concho, Prague,
Mustang, Stroud, Meeker, Hennessey, Davenport, Yukon, Okarche,
Guthrie, El Reno, Chandler, and Oklahoma City
123 AM CDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS
EVENING...
* WHAT...Heat index values up to 104 expected.
* WHERE...Canadian, Kingfisher, Lincoln, Logan, and Oklahoma
Counties.
* WHEN...From 1 PM this afternoon to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Newport/Morehead City NC
146 AM EDT Thu Aug 20 2026
NCZ090>092-094-193>196-198-199-210000-
/O.CON.KMHX.HT.Y.0028.260820T1500Z-260821T0000Z/
Duplin-Lenoir-Jones-Pamlico-Northern Craven-Southern Craven-West
Carteret-East Carteret-Inland Onslow-Coastal Onslow-
Including the cities of Half Moon, Vandemere, Pollocksville, Trenton,
New Bern, Richlands, River Bend, Harkers Island, Jacksonville,
Arapahoe, La Grange, Cove City, Morehead City, Kenansville, Cedar
Island, Pink Hill, Swansboro, Sneads Ferry, Emerald Isle, Dover,
Faison, Ernul, Maysville, Fairfield Harbor, Warsaw, Wallace,
Vanceboro, North Topsail Beach, Beaufort, Sea Level, Beulaville,
Havelock, Newport, Atlantic Beach, Bayboro, Kinston, Stella, and
Oriental
146 AM EDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...Heat index values up to 108 expected.
* WHERE...Coastal Onslow, Duplin, East Carteret, Inland Onslow,
Jones, Lenoir, Northern Craven, Pamlico, Southern Craven, and West
Carteret Counties.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
Martin
URGENT - WEATHER MESSAGE
National Weather Service Newport/Morehead City NC
146 AM EDT Thu Aug 20 2026
NCZ044-079-080-210000-
/O.EXA.KMHX.HT.Y.0028.260820T1500Z-260821T0000Z/
Pitt-Greene-Beaufort-
Including the cities of Grimesland, Bethel, Farmville, Belhaven,
Grifton, Aurora, Bath, Washington, Chocowinity, Greenville, Snow
Hill, Walstonburg, and Hookerton
146 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 106 expected.
* WHERE...Beaufort, Greene, and Pitt Counties.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Juan PR
134 AM AST Thu Aug 20 2026
PRZ001>005-007-008-010>013-VIZ001-002-201745-
/O.NEW.TJSJ.HT.Y.0039.260820T1400Z-260820T2100Z/
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North
Central-Ponce and Vicinity-Northwest-Mayaguez and Vicinity-
Southwest-Culebra-Vieques-St.Thomas...St. John...and Adjacent
Islands-St Croix-
Including the cities of Florida, Canovanas, Hormigueros, Arroyo,
Grove Place, Charlotte Amalie, Naguabo, Moca, Toa Alta, Barceloneta,
Ponce, Loiza, Cidra, Quebradillas, Aguada, Dorado, Catano, Juana
Diaz, Salinas, Aguas Buenas, Culebra, Charlotte Amalie East,
Patillas, Isabela, Cruz Bay, Camuy, Hatillo,
Maunabo, Ceiba, San Lorenzo, Carolina, Cayey, Las Piedras, Anna`s
Retreat, Rincon, Aguadilla, Vieques, Gurabo, Fajardo, Manati,
Guayanilla, Christiansted, Frederiksted Southeast, Cabo Rojo, Juncos,
Charlotte Amalie West, Penuelas, Caguas, San German, Santa Isabel,
Toa Baja, Comerio, Yauco, Anasco, Frederiksted, Trujillo Alto,
Humacao, San Juan, Yabucoa, Guanica, Vega Baja, Mayaguez, Luquillo,
Bayamon, Guaynabo, Rio Grande, Vega Alta, Arecibo, Lajas, and Guayama
134 AM AST Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 PM AST THIS
AFTERNOON...
* WHAT...This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration. expected.
* WHERE...Portions of Puerto Rico and Virgin Islands.
* WHEN...From 10 AM this morning to 5 PM AST this afternoon.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
LIS
URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
1225 AM CDT Thu Aug 20 2026
ARZ073-LAZ001>006-010>014-017>022-TXZ124>126-136>138-149>153-165>167-
202000-
/O.CON.KSHV.HT.Y.0010.000000T0000Z-260821T0100Z/
Union-Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-Red
River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-
Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine-Sabine-
Including the cities of Tyler, Mineola, Monroe, Pleasant Hill,
Winnfield, Zwolle, Big Sandy, Hemphill, Jena, Winnsboro, Columbia,
Marshall, Nacogdoches, Jonesboro, Gibsland, Gilmer, Longview, Colfax,
Rusk, Jefferson, Jacksonville, Ringgold, Minden, Shreveport, Clarks,
Quitman, Center, Bossier City, Arcadia, Farmerville, Carthage,
Pineland, Bernice, Coushatta, Olla, Stonewall, Mansfield, Homer,
Haynesville, Grayson, Henderson, Logansport, El Dorado, Ruston,
Midway, Many, Lufkin, Natchitoches, Hawkins, Martin, San Augustine,
Dry Prong, Montgomery, and Springhill
1225 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
* WHAT...Heat index values up to 110 degrees.
* WHERE...Portions of south central Arkansas, north central and
northwest Louisiana, and east and northeast Texas.
* WHEN...Until 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
15
URGENT - WEATHER MESSAGE
National Weather Service Amarillo TX
1224 AM CDT Thu Aug 20 2026
TXZ020-317-201900-
/O.NEW.KAMA.HT.Y.0040.260820T1700Z-260821T0200Z/
Collingsworth-Palo Duro Canyon-
Including the cities of Lutie, Wellington, Samnorwood, Palo Duro
Canyon State Park, and Dozier
1224 AM CDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM CDT THIS
EVENING...
* WHAT...Temperatures as high as 106 degrees.
* WHERE...Collingsworth County and Palo Duro Canyon.
* WHEN...From noon today to 9 PM CDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
DGW
URGENT - WEATHER MESSAGE
National Weather Service Little Rock AR
1220 AM CDT Thu Aug 20 2026
ARZ031>034-039-042>047-052>057-062>069-121-122-130-138-230-238-
202130-
/O.CON.KLZK.HT.Y.0023.260820T1600Z-260821T0100Z/
Conway-Faulkner-White-Woodruff-Perry-Garland-Saline-Pulaski-Lonoke-
Prairie-Monroe-Pike-Clark-Hot Spring-Grant-Jefferson-Arkansas-Dallas-
Cleveland-Lincoln-Desha-Ouachita-Calhoun-Bradley-Drew-
Southern Johnson County-Southern Pope County-
Western and Northern Logan County-Northwest Yell County-
Southern and Eastern Logan County-Yell Excluding Northwest-
Including the cities of Atkins, Hartman, Knoxville, Star City, Ola,
Waveland, Murfreesboro, London, Morrilton, Rison, Gould, Sugar Grove,
Hazen, Thornton, Stuttgart, Searcy, Hampton, Augusta, Kingsland,
Dardanelle, De Witt, Little Rock, Camden, Monticello, Russellville,
Subiaco, Cabot, Booneville, Perryville, Des Arc, Havana, Caulksville,
Mount Magazine, Brinkley, McCrory, Beebe, Conway, Malvern, Hector,
North Little Rock, Benton, De Valls Bluff, Lonoke, Clarendon, Pine
Bluff, Blue Mountain, Glenwood, McGehee, Fordyce, Arkadelphia, Hot
Springs, Sheridan, Paris, Plainview, Coal Hill, Danville, Warren,
Cotton Plant, Bryant, Dumas, and Clarksville
1220 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
CDT THIS EVENING...
* WHAT...Heat index values up to 109 expected.
* WHERE...Portions of central, eastern, southeast, southwest, and
western Arkansas.
* WHEN...From 11 AM this morning to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Little Rock AR
1220 AM CDT Thu Aug 20 2026
ARZ137-140-141-237-240-241-340-341-202130-
/O.EXA.KLZK.HT.Y.0023.260820T1600Z-260821T0100Z/
Northern Scott County-Polk County Lower Elevations-Central and
Eastern Montgomery County-Central and Southern Scott County-
Northern Polk County Higher Elevations-Northern Montgomery County
Higher Elevations-Southeast Polk County Higher Elevations-
Southwest Montgomery County Higher Elevations-
Including the cities of Grannis, Mansfield, Nunley, Story, Norman,
Big Fork, Hartley, Boles, Mount Ida, Y City, Acorn, Albert, Waldron,
Mena, Mountain Fork, Rich Mountain, and Hatfield
1220 AM CDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS
EVENING...
* WHAT...Heat index values up to 109 expected.
* WHERE...Central and Eastern Montgomery, Central and Southern Scott,
Northern Montgomery County Higher Elevations, Northern Polk County
Higher Elevations, Northern Scott, Polk County Lower Elevations,
Southeast Polk County Higher Elevations, and Southwest Montgomery
County Higher Elevations Counties.
* WHEN...From 11 AM this morning to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Angelo TX
1215 AM CDT Thu Aug 20 2026
TXZ049-054-098-099-113-114-127-128-210000-
/O.CON.KSJT.HT.Y.0015.260820T1800Z-260821T0000Z/
Fisher-Nolan-Haskell-Throckmorton-Jones-Shackelford-Taylor-Callahan-
Including the cities of Throckmorton, Funston, Irby, Truby, Haskell,
Woodson, Hamlin, Anson, Stamford, Tuxedo, Stith, Baird, Abilene,
Eula, Sweetwater, Cross Plains, Clyde, Dudley, Roby, Rotan, and
Albany
1215 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING...
* WHAT...Afternoon high temperatures climbing into the 104 to 108
degree range this afternoon.
* WHERE...Callahan, Fisher, Haskell, Jones, Nolan, Shackelford,
Taylor, and Throckmorton Counties.
* WHEN...From 1 PM this afternoon to 7 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Heat Advisory means that hot weather conditions are occurring or
expected. This will create a situation in which heat illnesses are
possible.
Never, ever, leave children or pets alone in enclosed vehicles, not
even for a few minutes. Car interiors can reach lethal temperatures
in a matter of minutes.
Stay indoors and seek air-conditioned buildings. Drink water more
than usual, and avoid dehydrating alcoholic, sugary, or caffeinated
drinks. Dress for the heat by wearing lightweight and light colored
clothing. Eat small meals and eat more often. Monitor those with a
higher vulnerability to heat, including small children. Check in on
family, friends, and neighbors, especially the elderly. If engaging
in outdoor activity, take longer and more frequent breaks and avoid
the hottest parts of the day.
&&
$$
AW
URGENT - WEATHER MESSAGE
National Weather Service Miami FL
108 AM EDT Thu Aug 20 2026
FLZ063-066>075-168-172>174-202200-
/O.NEW.KMFL.HT.Y.0036.260820T1500Z-260820T2200Z/
Glades-Hendry-Inland Palm Beach County-Metro Palm Beach County-
Coastal Collier County-Inland Collier County-Inland Broward
County-Metro Broward County-Inland Miami-Dade County-Metropolitan
Miami Dade-Mainland Monroe-Coastal Palm Beach County-Coastal
Broward County-Coastal Miami Dade County-Far South Miami-Dade
County-
Including the cities of Sandalfoot Cove, Kendall, West Palm
Beach, Bunker Hill, Riviera Beach, Ortona, Jupiter, Kendale
Lakes, Sawgrass Mills Mal, Lakeport, Clewiston, Boynton Beach,
Hendry Correctional, Delray Beach, Felda, East Naples, Miccosukee
Indian Reservation, Immokalee, Coral Springs, Lake Worth, Royal
Palm Beach, Sunniland, Pembroke Pines, Orange Tree, Marco Island,
Miles City, Muse, Fort Lauderdale, Redland, Carol City, Hialeah,
The Acreage, Brighton Seminole, Florida Gardens, North Naples,
Hollywood, Shark Valley Obs Tower, Buckhead Ridge, Caloosa,
Golden Gate, Pa-Hay Okee Overlook, Boca Raton, Pompano Beach,
Moore Haven, Naples, Miami, Lion Country Safari Park, Belle
Glade, Royal Palm Hammock, Palm Beach Gardens, North Blocks
Golde, Mahogany Hammock, Palmdale, Greenacres City, Sunrise,
Marco Island Airport, Miramar, Northwest Cape Sable, Deerfield
Beach, Fortymile Bend, Royal Palm Ranger, Bonita Shores, Davie,
Florida City, and Wellington
108 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 110 expected.
* WHERE...Portions of southeast, southern, and southwest Florida.
* WHEN...From 11 AM this morning to 6 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
WR
URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
1205 AM CDT Thu Aug 20 2026
LAZ027>033-044-045-055-073-074-141>143-152>154-241>243-252>254-
TXZ180-201-259>262-515-516-615-616-201700-
/O.CON.KLCH.HT.Y.0017.260820T1700Z-260821T0100Z/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Lafayette-Upper St. Martin-Lower St. Martin-West Cameron-East
Cameron-Northern Calcasieu-Northern Jefferson Davis-Northern
Acadia-Upper Vermilion-Upper Iberia-Upper St. Mary-Southern
Calcasieu-Southern Jefferson Davis-Southern Acadia-Lower
Vermilion-Lower Iberia-Lower St. Mary-Tyler-Hardin-Northern
Jasper-Northern Newton-Southern Jasper-Southern Newton-Upper
Jefferson-Northern Orange-Lower Jefferson-Southern Orange-
Including the cities of Welsh, Wiergate, Kirbyville, Simmesport,
Woodville, Effie, Oakdale, Opelousas, Hillister, Vidor, Abbeville,
Iota, Hathaway, New Iberia, Jamestown, Lake Charles,
Ivanhoe, Mt. Union, Lumberton, Hackberry, Mauriceville,
Burkeville, De Ridder, Bayou Vista, Iowa, Gueydan, Jeanerette, Sabine
Pass, Nederland, Alexandria, Eunice, Sulphur, China, Spurger, Lake
Arthur, Reddell, Oretta, Warren, Roganville, Rayne, Beaver, Breaux
Bridge, Orange, Buna, Topsy, Pickering, Magnolia Springs, Sea Rim
State Park, Grand Chenier, Hayes, Berwick,
Cameron, Maurice, Moss Bluff, Fort Polk, St. Martinville,
Klondike, Intracoastal City, Bunkie, Ville Platte, Kinder, Lawtell,
Stephensville, Vinton, Avery Island, Bridge City, Branch, Jasper,
Deweyville, Morse, Creole, Mansura, Westlake, Church Point, Morgan
City, Silsbee, Fields, Meaux, Call, Lafayette, Pineville, Crowley,
Bundick Lake, Franklin, Carlyss, Kaplan, Fred, Cypremort Point,
Newton, Slagle, Jennings, De Quincy, Beaumont, Rutherford Beach,
Johnson Bayou, Patterson, Holly Springs, Cade, Centerville,
Bleakwood, Marksville,
Leesville, Forked Island, Gist, Farrsville, St. Landry, Fenton,
Mamou, Grand Lake, Port Arthur, Burns Point, Town Bluff, Evadale,
Cottonport, Bell City, and Elton
1205 AM CDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING...
* WHAT...Heat index values up to 108 expected.
* WHERE...Portions of central, south central, southwest, and west
central Louisiana and southeast Texas.
* WHEN...From noon today to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
1239 AM EDT Thu Aug 20 2026
NCZ077-078-088-089-201800-
/O.CON.KRAH.HT.Y.0027.260820T1500Z-260821T0000Z/
Harnett-Wayne-Cumberland-Sampson-
Including the cities of Spring Lake, Lillington, Angier, Dunn, Erwin,
Buies Creek, Goldsboro, Clinton, Roseboro, Hope Mills, and
Fayetteville
1239 AM EDT Thu Aug 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...Heat index values up to 106 expected.
* WHERE...Cumberland, Harnett, Sampson, and Wayne Counties.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
PWB
URGENT - WEATHER MESSAGE
National Weather Service Raleigh NC
1239 AM EDT Thu Aug 20 2026
NCZ024>028-040>043-075-076-084>086-201800-
/O.EXA.KRAH.HT.Y.0027.260820T1500Z-260821T0000Z/
Orange-Durham-Franklin-Nash-Edgecombe-Chatham-Wake-Johnston-Wilson-
Moore-Lee-Richmond-Scotland-Hoke-
Including the cities of Sanford, Laurinburg, Ellerbe, Rocky Mount,
Carthage, Knightdale, Carrboro, Nashville, Selma, Siler City, Wake
Forest, Wilson, Louisburg, Smithfield, Franklinton, Aberdeen,
Pittsboro, Camp Mackall, Spring Hope, Raeford, Pinehurst,
Princeville, Cary, Rockingham, Apex, Southern Pines, Wagram, Tarboro,
Chapel Hill, Clayton, Raleigh, Durham, Hillsborough, and Rougemont
1239 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 106 expected.
* WHERE...Much of the Sandhills, eastern Piedmont, and Coastal Plain
of central North Carolina.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Melbourne FL
1238 AM EDT Thu Aug 20 2026
FLZ041-044>046-053-058-141-144-154-159-164-247-254-259-264-347-447-
547-647-747-202300-
/O.NEW.KMLB.HT.Y.0022.260820T1400Z-260820T2300Z/
Inland Volusia-Northern Lake-Orange-Seminole-Osceola-Okeechobee-
Coastal Volusia-Southern Lake-Coastal Indian River-Coastal Saint
Lucie-Coastal Martin-Inland Northern Brevard-Inland Indian River-
Inland Saint Lucie-Inland Martin-Mainland Northern Brevard-
Northern Brevard Barrier Islands-Inland Southern Brevard-Mainland
Southern Brevard-Southern Brevard Barrier Islands-
Including the cities of Vero Beach, Palm Bay west of I 95, Saint
Cloud, Mims, Maitland, Deltona, Celebration, Melbourne, Clermont,
Basinger, Tradition, Rockledge, Stuart, Port Saint Lucie, Merritt
Island Wildlife Refuge, Sebastian, Winter Park, Viera West, Melbourne
Beach, Winter Springs, Casselberry, Daytona Beach, Fort Drum,
Titusville, Indiantown, Tavares, Port Saint John, Okeechobee,
Sanford, Fort Pierce, Altamonte Springs, Deland, Canaveral Groves,
Satellite Beach, Ormond Beach, Leesburg, Mascotte, Fellsmere,
Playalinda Beach, Groveland, Apopka, Orlando, Kissimmee, Cocoa, Union
Park, Oviedo, Jensen Beach, Eustis, Mount Dora, Cocoa Beach, New
Smyrna Beach, Saint Lucie West, Debary, and Hobe Sound
1238 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
* WHAT...Heat index values 108 to 112 expected.
* WHERE...A portion of east central Florida.
* WHEN...From 10 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational Safety
and Health Administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
Wishard
URGENT - WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1134 PM CDT Wed Aug 19 2026
TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-335>338-
436>439-201645-
/O.CON.KHGX.HT.Y.0008.260820T1700Z-260822T0000Z/
Houston-Trinity-Madison-Walker-San Jacinto-Polk-Burleson-Brazos-
Washington-Grimes-Montgomery-Northern Liberty-Colorado-Austin-
Waller-Inland Harris-Chambers-Wharton-Fort Bend-Inland Jackson-
Inland Matagorda-Inland Brazoria-Inland Galveston-Southern
Liberty-Coastal Harris-Coastal Jackson-Coastal Matagorda-Coastal
Brazoria-Coastal Galveston-Matagorda Islands-Brazoria Islands-
Galveston Island-Bolivar Peninsula-
Including the cities of Prairie View, Alvin, Groveton, Brookshire,
Waller, Conroe, Houston, Somerville, Pasadena, Eagle Lake,
Madisonville, Dayton, Bryan, First Colony, Anahuac, Missouri City,
Ganado, Lake Jackson, Wharton, Corrigan, Crockett, Friendswood, Mont
Belvieu, El Campo, Edna, Cleveland, Old
River-Winfree, La Marque, Trinity, Livingston, Navasota,
Caldwell, Bellville, Brenham, Mission Bend, Texas City, Galveston,
College Station, Bay City, Pearland, Clute, League City, Coldspring,
Shepherd, Columbus, Huntsville, Palacios, Hempstead, Sugar Land,
Angleton, Winnie, Baytown, The Woodlands, Weimar, Dickinson, Stowell,
Pecan Grove, Rosenberg, Surfside Beach, Devers, Freeport, Liberty,
and Sealy
1134 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON THURSDAY TO 7 PM CDT
FRIDAY...
* WHAT...Heat index values up to 110 expected.
* WHERE...Portions of south central and southeast Texas.
* WHEN...From noon Thursday to 7 PM CDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tampa Bay Ruskin FL
1209 AM EDT Thu Aug 20 2026
FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-239-
242-248-249-251-255-260-262-265-202300-
/O.NEW.KTBW.HT.Y.0020.260820T1500Z-260820T2300Z/
Sumter-Pinellas-Polk-Hardee-Highlands-DeSoto-Coastal Levy-Coastal
Citrus-Coastal Hernando-Coastal Pasco-Coastal Hillsborough-
Coastal Manatee-Coastal Sarasota-Coastal Charlotte-Coastal Lee-
Inland Levy-Inland Citrus-Inland Hernando-Inland Pasco-Inland
Hillsborough-Inland Manatee-Inland Sarasota-Inland Charlotte-
Inland Lee-
Including the cities of Hernando Beach, Inverness, Crystal River,
Port Charlotte, Avon Park, Yankeetown, Bushnell, Port Richey, The
Villages, Tampa, Bronson, Zephyrhills, Anna Maria Island, Zolfo
Springs, Williston, Lakeland, Punta Gorda, Brooksville, Parrish,
Wauchula, Bayport, Dade City, Wildwood, Captiva, North Port, Sebring,
Bradenton, Lehigh Acres, Sarasota, Myakka City, Lakewood Ranch,
Homosassa, Bowling Green, Arcadia, Winter Haven, Chiefland, Fort
Myers, Cedar Key, Westchase, Sanibel, Plant City,
Apollo Beach, St. Petersburg, Largo, Hudson, Sun City Center,
Englewood, Spring Hill, Lake Panasoffkee, Placid Lakes, Venice,
Brandon, Clearwater, Babcock Ranch, and Cape Coral
1209 AM EDT Thu Aug 20 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 109 expected.
* WHERE...Portions of southwest and west central Florida.
* WHEN...From 11 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1043 PM CDT Wed Aug 19 2026
ARZ129-219-220-229-OKZ065-070-071-073>075-176-272-276-202200-
/O.CON.KTSA.HT.Y.0040.260820T1800Z-260821T0100Z/
North and Central Sebastian-Southern Crawford-Central and
Southern Franklin-Southern Sebastian-Okfuskee-Muskogee-McIntosh-
Pittsburg-Haskell-Latimer-Northern Le Flore-Central and Southern
Sequoyah-Central Le Flore-
Including the cities of Cecil, Ozark, Lonelm, Wilburton, Charleston,
Watalula, Sallisaw, Spiro, Pocola, Cravens, Stigler, Liberty,
McAlester, Panama, Van Buren, Poteau, Checotah, Hartford, Mansfield,
Patterson, Jethro, Huntington, Muskogee, Okemah, Arkoma, and Fort
Smith
1043 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 110 expected.
* WHERE...Portions of northwest and west central Arkansas and east
central and southeast Oklahoma.
* WHEN...From 1 PM to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses are possible especially impacting
those not acclimated to the conditions or those performing
strenuous activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1043 PM CDT Wed Aug 19 2026
OKZ066-376-202200-
/O.EXA.KTSA.HT.Y.0040.260820T1800Z-260821T0100Z/
Okmulgee-Southern Le Flore-
Including the cities of Okmulgee and Talihina
1043 PM CDT Wed Aug 19 2026
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 107 expected.
* WHERE...Okmulgee and Southern Le Flore Counties.
* WHEN...From 1 PM to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses are possible especially impacting
those not acclimated to the conditions or those performing
strenuous activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
839 PM PDT Wed Aug 19 2026
CAZ048-201315-
/O.CON.KSGX.HT.Y.0009.000000T0000Z-260821T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Fontana, San Bernardino, Moreno Valley,
Rancho Cucamonga, Ontario, Riverside, and Corona
839 PM PDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY...
* WHAT...Temperatures up to 105 expected.
* WHERE...San Bernardino and Riverside County Valleys-The Inland
Empire.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
12
URGENT - WEATHER MESSAGE
National Weather Service Lubbock TX
1031 PM CDT Wed Aug 19 2026
TXZ024>026-030>032-036>038-042>044-201145-
/O.NEW.KLUB.HT.Y.0021.260820T1800Z-260821T0100Z/
Briscoe-Hall-Childress-Floyd-Motley-Cottle-Crosby-Dickens-King-Garza-
Kent-Stonewall-
Including the cities of Post, Lockney, Memphis, Silverton, Matador,
Floydada, Quitaque, Aspermont, Dickens, Spur, Turkey, Kirkland,
Paducah, Jayton, Childress, Roaring Springs, Guthrie, Ralls, Cee Vee,
Crosbyton, Lake Alan Henry, Old Glory, and Dumont
1031 PM CDT Wed Aug 19 2026
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 8 PM CDT THURSDAY...
* WHAT...Temperatures up to 109 expected.
* WHERE...The far southeastern Texas Panhandle and the Rolling
Plains.
* WHEN...From 1 PM to 8 PM CDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
CWA
URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
1006 PM CDT Wed Aug 19 2026
ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-201115-
/O.CON.KMOB.HT.Y.0017.260820T1600Z-260821T0100Z/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George-
Including the cities of New Augusta, Fairhope, Silas, Orange Beach,
Richton, Opp, Thomasville, Perdido Bay, Grove Hill, Crestview,
Beaumont, Dauphin Island, Walnut Hill, Niceville, Camden, Fort Walton
Beach, Leakesville, McLain, Gulf Breeze, Eglin AFB, Beulah, Jay,
Spanish Fort, Mobile, Milton, Theodore, Flomaton, Prichard,
Monroeville, Andalusia, Stockton, Bay Minette, Pensacola, Brewton,
Gulf Shores, Wright, Saraland, Valparaiso, Fort Morgan, Grand Bay,
Foley, Homewood, Greenville, Pensacola Beach, Lisman, Pine Hill,
Seminole, Destin, Waynesboro, Lucedale, Brantley, Chatom, Daphne,
Butler, Wiggins, Fort Pickens, Navarre, Millry, Molino, Luverne,
Evergreen, Bayou La Batre, Century, Citronelle, Bagdad, Ensley,
Atmore, and Jackson
1006 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 112 expected.
* WHERE...Portions of south central and southwest Alabama, northwest
Florida, and southeast Mississippi.
* WHEN...From 11 AM to 8 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
JGC
URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
952 PM CDT Wed Aug 19 2026
LAZ034>037-039-046>048-056>058-064-070-071-076>087-089>100-
MSZ068>071-077-083>088-201800-
/O.CON.KLIX.HT.Y.0022.260820T1600Z-260821T0100Z/
Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Iberville-West Baton Rouge-East Baton Rouge-Assumption-St. James-
St. John The Baptist-Upper St. Bernard-Lower St. Bernard-Northern
Tangipahoa-Southeast St. Tammany-Western Orleans-Eastern Orleans-
Northern St. Tammany-Southwestern St. Tammany-Central Tangipahoa-
Lower Tangipahoa-Northern Livingston-Southern Livingston-Western
Ascension-Eastern Ascension-Upper Jefferson-Upper Plaquemines-
Central Plaquemines-Lower Plaquemines-Central Jefferson-Coastal
Jefferson-Upper Lafourche-Lower Lafourche-Upper Terrebonne-Lower
Terrebonne-Upper St. Charles-Central St. Charles-Lower St.
Charles-Wilkinson-Amite-Pike-Walthall-Pearl River-Northern
Hancock-Northern Harrison-Northern Jackson-Southern Hancock-
Southern Harrison-Southern Jackson-
Including the cities of Long Beach, Lafitte, Meraux, Braithwaite,
Alliance, Saucier, Jean Lafitte, Lockport, Woodville, Pearlington,
Dulac, Springfield, New Orleans, Plaquemine, Darlington, Belle
Chasse, Boutte, Fort Adams, Easleyville, Tickfaw, Grand Isle,
Kentwood, Buras, Bonnet Carre Spillway, Dolorosa, Laplace, Dexter,
Tylertown, Enon, Bayou Sorrel, Diamondhead, Luling, Sorrento,
Montpelier, Galliano, Addis, Wilmer, Pointe A La Hache, Mandeville,
French Settlement, Prairieville, Shell Beach, Gulfport, Centreville,
Chauvin, Greensburg, Whitehall, Larose, Golden Meadow, Moss Point,
Marrero, Gillsburg, Franklinton, Folsom, Wade, New Roads, Killian,
White Castle, Pass Christian, Raceland, Destrehan,
Necaise, Harahan, McComb, Port Allen, Norco, Bay St. Louis,
Convent, Poplarville, Slidell, Wakefield, Gramercy, Hahnville,
Walker, Yscloskey, Sellers, Port Sulphur, Thibodaux, Westwego, Bayou
Cane, Amite, McNeil, Donaldsonville, Cut Off, Spillman, Baton Rouge,
Liberty, Roseland, Bush, Jackson, Gretna, Covington, Picayune, Kiln,
Biloxi, Pascagoula, Bogalusa, Hammond, Ponchatoula, Smithdale,
Crossroads, Barataria, Montegut,
Vancleave, St. Martin, Gloster, Lutcher, Kenner, Madisonville,
Reserve, Livonia, Metairie, Lettsworth, Cocodrie, Salem, Escatawpa,
Houma, Montz, East New Orleans, Robert, Gautier, Labadieville,
Brusly, Livingston, Waveland, Akers, Independence, Leeville, Pierre
Part, Gonzales, Felps, Clinton, Violet, Denham
Springs, Chalmette, Paincourtville, Geismar, St. Francisville,
Acy, Lyman, Ocean Springs, and Delacroix
952 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 111 degrees expected.
* WHERE...All of southeast Louisiana and southern Mississippi.
* WHEN...From 11 AM to 8 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
Frye
URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
918 PM CDT Wed Aug 19 2026
ALZ045-046-049-050-201500-
/O.CON.KBMX.HT.Y.0010.000000T0000Z-260821T0200Z/
Macon-Bullock-Pike-Barbour-
Including the cities of Troy, Tuskegee, Eufaula, and Union Springs
918 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THURSDAY...
* WHAT...Heat index values up to 108.
* WHERE...Barbour, Bullock, Macon, and Pike Counties.
* WHEN...Until 9 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stoke. Wear light weight and loose fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
16
URGENT - WEATHER MESSAGE
National Weather Service Birmingham AL
918 PM CDT Wed Aug 19 2026
ALZ011>013-015-022>025-030>036-039>044-201500-
/O.CON.KBMX.HT.Y.0009.000000T0000Z-260821T0200Z/
Marion-Lamar-Fayette-Walker-Pickens-Tuscaloosa-Jefferson-Shelby-
Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Marengo-Dallas-Autauga-
Lowndes-Elmore-Montgomery-
Including the cities of Sulligent, Hayneville, Montgomery, Fayette,
Hoover, Pelham, Demopolis, Carrollton, Tuscaloosa, Wetumpka, Linden,
Vernon, Alabaster, Selma, Eutaw, Marion, Prattville, Livingston,
Centreville, Tallassee, Clanton, Jasper, Greensboro, Birmingham,
Columbiana, Rockford, Hamilton, Fort Deposit, and Moundville
918 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THURSDAY...
* WHAT...Heat index values up to 108.
* WHERE...Autauga, Bibb, Chilton, Coosa, Dallas, Elmore, Fayette,
Greene, Hale, Jefferson, Lamar, Lowndes, Marengo, Marion,
Montgomery, Perry, Pickens, Shelby, Sumter, Tuscaloosa, and Walker
Counties.
* WHEN...Until 9 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stoke. Wear light weight and loose fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Memphis TN
815 PM CDT Wed Aug 19 2026
ARZ048-049-058-MSZ007-008-010>017-020>024-201600-
/O.CON.KMEG.HT.Y.0023.260820T1600Z-260821T0100Z/
St. Francis-Lee AR-Phillips-Tunica-Tate-Coahoma-Quitman-Panola-
Lafayette-Union-Pontotoc-Lee MS-Itawamba-Tallahatchie-Yalobusha-
Calhoun-Chickasaw-Monroe-
Including the cities of Charleston, Coffeeville, Fulton, Tunica,
Aberdeen, Clarksdale, Bruce, Forrest City, Oxford, Tupelo,
Helena-West Helena, Pontotoc, Calhoun City, Batesville, Marianna,
Marks, Houston, Amory, Okolona, Senatobia, New Albany, and Water
Valley
815 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 109 degrees expected.
* WHERE...Portions of East Arkansas and North Mississippi.
* WHEN...From 11 AM to 8 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
CJC
URGENT - WEATHER MESSAGE
National Weather Service Jackson MS
650 PM CDT Wed Aug 19 2026
ARZ075-LAZ008-009-016-024>026-MSZ018-019-025-034>036-040>043-047>049-
053-054-059>061-201000-
/O.CON.KJAN.XH.W.0008.000000T0000Z-260820T0200Z/
/O.CON.KJAN.HT.Y.0022.260820T1600Z-260821T0100Z/
Chicot-West Carroll-East Carroll-Madison LA-Catahoula-Tensas-
Concordia-Bolivar-Sunflower-Leflore-Washington-Humphreys-Holmes-
Issaquena-Sharkey-Yazoo-Madison MS-Warren-Hinds-Rankin-Claiborne-
Copiah-Jefferson-Adams-Franklin MS-
Including the cities of Rolling Fork, Greenville, Eudora, Meadville,
Waterproof, Tallulah, Canton, Ferriday, Madison, Crystal Springs,
Fayette, Pearl, Lexington, Roxie, Vidalia, Isola, Epps, Greenwood,
Bude, Ruleville, Dermott, Ridgeland, Richland, Mayersville, Jackson,
Brandon, Port Gibson, Natchez, Wesson, West Ferriday, Oak Grove,
Hazlehurst, Jonesville, Lake
Village, Vicksburg, Durant, St. Joseph, Cleveland, Indianola,
Belzoni, Anguilla, Goodman, Harrisonburg, Pickens, Tchula, Yazoo
City, Lake Providence, and Newellton
650 PM CDT Wed Aug 19 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY...
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 115 degrees. For the Heat Advisory,
heat index values up to 110 degrees expected.
* WHERE...Portions of west central and southwest Mississippi,
southeast Arkansas, and northeast Louisiana.
* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat Advisory, from 11 AM to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Monitor the latest forecasts and warnings for updates.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Jackson MS
650 PM CDT Wed Aug 19 2026
ARZ074-LAZ007-015-023-MSZ026>033-037>039-044>046-050>052-055>058-
062>066-072>074-201000-
/O.CON.KJAN.HT.Y.0020.000000T0000Z-260820T0200Z/
/O.CON.KJAN.HT.Y.0022.260820T1600Z-260821T0100Z/
Ashley-Morehouse-Richland-Franklin LA-Grenada-Carroll-Montgomery-
Webster-Clay-Lowndes-Choctaw-Oktibbeha-Attala-Winston-Noxubee-Leake-
Neshoba-Kemper-Scott-Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-
Lincoln-Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-
Forrest-
Including the cities of Brookhaven, Lumberton, Purvis, Eupora,
Hamburg, Philadelphia, Laurel, Mathiston, Crossett, West Hattiesburg,
Conehatta, West Crossett, Taylorsville, Hattiesburg, Kosciusko,
Stonewall, Rayville, Grenada, Forest, Heidelberg, Weir, Decatur,
Bassfield, Meridian, De Kalb, Winnsboro, Vaiden, Scooba, Brooksville,
Quitman, Delhi, Starkville, Prentiss, New Hebron, Louisville, Magee,
Bay Springs, Shubuta, Union, Macon, Bastrop, Morton, Collins,
Columbia, West Point, Raleigh, Ackerman, Mendenhall, Pearl River,
Newton, Winona, Mount Olive, Carrollton, Columbus, Monticello, North
Carrollton, North Crossett, and Carthage
650 PM CDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT THURSDAY...
* WHAT...Heat index values up to 110 degrees expected.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and
much of eastern Mississippi.
* WHEN...For the first Heat Advisory, until 9 PM CDT this evening.
For the second Heat Advisory, from 11 AM to 8 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat related
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Monitor the latest forecasts and warnings for updates.
&&
$$
DC
URGENT - WEATHER MESSAGE
National Weather Service Boise ID
219 PM MDT Wed Aug 19 2026
IDZ012-014-016-033-ORZ064-202100-
/O.CON.KBOI.HT.Y.0007.260820T1800Z-260822T0300Z/
Lower Treasure Valley-Upper Treasure Valley-Western Magic Valley-
Upper Weiser River-Oregon Lower Treasure Valley-
Including the cities of Indian Valley, Boise, Council, Goodrich,
Fruitvale, Ontario, Caldwell, Mesa, Nampa, Nyssa, Cambridge, Twin
Falls, and Glendale
219 PM MDT Wed Aug 19 2026 /119 PM PDT Wed Aug 19 2026/
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON MDT /11 AM PDT/ THURSDAY
TO 9 PM MDT /8 PM PDT/ FRIDAY...
* WHAT...High temperatures 98 to 104 degrees expected.
* WHERE...Portions of south central and southwest Idaho and southeast
Oregon.
* WHEN...From noon MDT /11 AM PDT/ Thursday to 9 PM MDT /8 PM PDT/
Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
LC
URGENT - WEATHER MESSAGE
National Weather Service Elko NV
102 PM PDT Wed Aug 19 2026
NVZ033-200815-
/O.NEW.KLKN.HT.Y.0008.260820T1800Z-260821T0400Z/
Southeastern Elko-
Including the cities of West Wendover
102 PM PDT Wed Aug 19 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 9 PM PDT THURSDAY...
* WHAT...Max temperatures ranging from 98 to 103.
* WHERE...Southeastern Elko County.
* WHEN...From 11 AM to 9 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially for
individual working outdoors, the elderly, young children, and folks
visiting from cooler regions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, take frequent breaks when working outdoors,
seek air-conditioned places to cool off, limit exposure to the sun,
and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
151 PM MDT Wed Aug 19 2026
UTZ101>106-201100-
/O.NEW.KSLC.HT.Y.0008.260820T1800Z-260822T1300Z/
Great Salt Lake Desert and Mountains-Tooele and Rush Valleys-
Eastern Box Elder County-Northern Wasatch Front-Salt Lake Valley-
Utah Valley-
Including the following locations - Wendover, Grantsville,
Dugway, Park Valley, Bountiful, Lehi, Provo, Tooele, Salt Lake City,
Brigham City, Vernon, West Jordan, Payson, Sandy, Snowville, and
Ogden
151 PM MDT Wed Aug 19 2026
...HEAT ADVISORY IN EFFECT FROM NOON THURSDAY TO 7 AM MDT SATURDAY...
* WHAT...High temperatures to around 100 degrees expected alongside
overnight low temperatures in the low- to mid-70s.
* WHERE...The Wasatch Front, Great Salt Lake Desert and Mountains,
and Tooele and Rush Valleys.
* WHEN...From noon Thursday to 7 AM MDT Saturday.
* IMPACTS...Hot temperatures may cause heat illness. Warm overnight
temperatures will limit the amount of relief from the hot daytime
temperatures, bringing a period of prolonged heat exposure,
especially for vulnerable populations.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Salt Lake City UT
151 PM MDT Wed Aug 19 2026
UTZ115-116-201100-
/O.NEW.KSLC.HT.Y.0008.260820T1800Z-260821T1300Z/
Western Millard and Juab Counties-Eastern Juab/Millard Counties-
Including the following locations - Nephi, Fillmore, Delta,
Scipio, and Little Sahara
151 PM MDT Wed Aug 19 2026
...HEAT ADVISORY IN EFFECT FROM NOON THURSDAY TO 7 AM MDT FRIDAY...
* WHAT...High temperatures to around 100 degrees expected alongside
overnight low temperatures in the upper-60s to low-70s.
* WHERE...Eastern Juab/Millard Counties and Western Millard and Juab
Counties.
* WHEN...From noon Thursday to 7 AM MDT Friday.
* IMPACTS...Hot temperatures may cause heat illness. Warm overnight
temperatures will limit the amount of relief from the hot daytime
temperatures, bringing a period of prolonged heat exposure,
especially for vulnerable populations.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
Webber
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
109 PM MDT Wed Aug 19 2026
IDZ051-054>057-075-202115-
/O.CON.KPIH.HT.Y.0006.260820T1800Z-260821T0400Z/
/O.CON.KPIH.HT.Y.0007.260821T1800Z-260822T0400Z/
Shoshone/Lava Beds-Lower Snake River Plain-Eastern Magic Valley-
Southern Hills/Albion Mountains-Raft River Region-Wood River
Foothills-
Including the cities of Holbrook, Pocatello, Hailey, American Falls,
Rupert, Fort Hall, Burley, Almo, Richfield, Rockland, Shoshone,
Shelley, Picabo, Albion, Malta, Oakley, Bellevue, Carey, Blackfoot,
and Heyburn
109 PM MDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 10 PM MDT THURSDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 10 PM MDT FRIDAY...
* WHAT...Widespread temperatures ranging 93 to 98 degrees.
* WHERE...Wood River Foothills, Eastern Magic Valley, Shoshone/Lava
Beds, Lower Snake River Plain, Raft River Region, and Southern
Hills/Albion Mountains.
* WHEN...For the first Heat Advisory, from noon to 10 PM MDT
Thursday. For the second Heat Advisory, from noon to 10 PM MDT
Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
$$
URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
109 PM MDT Wed Aug 19 2026
IDZ052-053-058-059-202115-
/O.CON.KPIH.HT.Y.0007.260821T1800Z-260822T0400Z/
Arco/Mud Lake Desert-Upper Snake River Plain-Marsh and Arbon
Highlands-Franklin/Eastern Oneida Region-
Including the cities of INL, Preston, Thatcher, Idaho Falls, Craters
of the Moon NM, Malad, Lava Hot Springs, Mud Lake, Inkom,
Downey, Rexburg, McCammon, and St. Anthony
109 PM MDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 10 PM MDT FRIDAY...
* WHAT...Widespread temperatures ranging 93 to 98 degrees.
* WHERE...Arco/Mud Lake Desert, Franklin/Eastern Oneida Region, Marsh
and Arbon Highlands, and Upper Snake River Plain.
* WHEN...From noon to 10 PM MDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
$$
Visit weather.gov/pocatello for more information.
Cropp
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
248 AM PDT Wed Aug 19 2026
CAZ038-088-343>345-351-353-371>373-375-376-379-380-548-202300-
/O.CON.KLOX.HT.Y.0013.000000T0000Z-260821T0300Z/
Cuyama Valley-Santa Clarita Valley-Southern Salinas Valley-San
Luis Obispo County Interior Valleys-San Luis Obispo County
Mountains-Santa Ynez Mountains Western Range-Santa Barbara County
Interior Mountains-Calabasas and Agoura Hills-Western San
Fernando Valley-Eastern San Fernando Valley-Santa Susana
Mountains-Southern Ventura County Mountains-Western San Gabriel
Mountains and Highway 14 Corridor-Eastern San Gabriel Mountains-
Los Angeles County San Gabriel Valley-
Including the cities of Universal City, Mill Creek, Santa Clarita,
San Miguel, Paso Robles, Caliente Range, Newhall, Big Pine Mountain,
La Canada Flintridge, Warm Springs, Atascadero, Templeton, Woodland
Hills, Wrightwood, Mount Wilson, East Los Angeles, El Monte, The
Angeles Crest Highway, San Rafael Mountain, Chatsworth, Valencia,
Sunland, Malibu Lake, Lake Castaic, Pomona, Oat Mountain, Rose
Valley, La Panza Range, Lake Nacimiento, Pasadena, Westlake Village,
Van Nuys, Figueroa Mountain, Matilija, Glendale, San Marcos Pass,
Northridge, Topatopa Mountains, San Gabriel, Acton, Burbank, Carrizo
Plain, New Cuyama, Santa Margarita Lake, Creston, Shandon, and Mount
Baldy
248 AM PDT Wed Aug 19 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY...
* WHAT...High temperatures of 92 to 105 expected, with most areas
seeing peak heat on Wednesday and Thursday. Low temperatures are
expected to range from the upper 60s to lower 70s at lower
elevations to the mid 70s to lower 80s in the foothills and
mountains.
* WHERE...A portion of southwest California.
* WHEN...Until 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses. Warmer than
normal low temperatures will add to the heat discomfort.
* ADDITIONAL DETAILS...The heat advisory may need to be extended into
Friday for portions of the forecast area, but there remains
considerable uncertainty at this time.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
ASR |
