weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Extreme Heat Warning


URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
100 PM CDT Tue Jul 21 2026

TXZ091-100>102-115>117-130>135-143>148-157>162-174-175-220600-
/O.EXB.KFWD.XH.W.0001.260722T0100Z-260723T0100Z/
/O.CON.KFWD.HT.Y.0004.000000T0000Z-260722T0100Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Erath-Hood-
Somervell-Johnson-Ellis-Henderson-Hamilton-Bosque-Hill-Navarro-
Freestone-Anderson-Coryell-Bell-McLennan-Falls-Limestone-Leon-Milam-
Robertson-
Including the cities of Gatesville, Marlin, Nocona, Briar, Hamilton,
Oakwood, Hico, Granbury, Burleson, Meridian, Hillsboro, Killeen,
Temple, Mexia, Cameron, Waco, Wortham, Jewett, Olney, Weatherford,
Corsicana, Graham, Copperas Cove, Gun Barrel City, Centerville,
Stephenville, Valley Mills, Palestine, Ennis, Breckenridge, Fort
Hood, Fairfield, Bridgeport, Dublin, Midlothian, Calvert, Normangee,
Oak Trail Shores, Hearne, Glen Rose, Athens, Mineral Wells,
Jacksboro, Groesbeck, Rockdale, Teague, Buffalo, Clifton, Bowie,
Decatur, Franklin, Waxahachie, and Cleburne
100 PM CDT Tue Jul 21 2026

...EXTREME HEAT WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM CDT
WEDNESDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...For the Heat Advisory, heat index values up to 108. For the
  Extreme Heat Warning, dangerously hot conditions with heat index
  values up to 112 expected.

* WHERE...Portions of north central, northeast, and south central
  Texas.

* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the
  Extreme Heat Warning, from 8 PM this evening to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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.

Extreme heat is dangerous, especially for those without reliable
shelter. Limit time outdoors during the hottest time of the day,
typically from 2 to 7 PM, rest in the shade when possible, and drink
plenty of water. Locate nearby cooling centers through local
resources or dial 2-1-1 in Texas.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
100 PM CDT Tue Jul 21 2026

TXZ092-093-103>105-107-118>123-220600-
/O.EXT.KFWD.XH.W.0001.000000T0000Z-260723T0100Z/
Cooke-Grayson-Denton-Collin-Hunt-Hopkins-Tarrant-Dallas-Rockwall-
Kaufman-Van Zandt-Rains-
Including the cities of Point, Edgewood, Kaufman, Frisco, Canton,
Greenville, Wills Point, Denton, Heath, Sherman, Fort Worth, Terrell,
Allen, Lewisville, Forney, Carrollton, Denison, Plano, Commerce,
Flower Mound, McKinney, Grand Saline, Gainesville, Arlington, Sulphur
Springs, East Tawakoni, Rockwall, Dallas, Emory, and Van
100 PM CDT Tue Jul 21 2026

...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM CDT WEDNESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 111
  expected.

* WHERE...Portions of north central and northeast Texas.

* WHEN...Until 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

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.

Extreme heat is dangerous, especially for those without reliable
shelter. Limit time outdoors during the hottest time of the day,
typically from 2 to 7 PM, rest in the shade when possible, and drink
plenty of water. Locate nearby cooling centers through local
resources or dial 2-1-1 in Texas.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
100 PM CDT Tue Jul 21 2026

TXZ094-095-106-220600-
/O.EXB.KFWD.HT.Y.0004.260722T0100Z-260723T0100Z/
/O.CON.KFWD.XH.W.0001.000000T0000Z-260722T0100Z/
Fannin-Lamar-Delta-
Including the cities of Cooper, Paris, and Bonham
100 PM CDT Tue Jul 21 2026

...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM CDT
WEDNESDAY...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 112. For the Heat Advisory, heat index
  values up to 109 expected.

* WHERE...Fannin, Delta, and Lamar Counties.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
  For the Heat Advisory, from 8 PM this evening to 8 PM CDT
  Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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.

Extreme heat is dangerous, especially for those without reliable
shelter. Limit time outdoors during the hottest time of the day,
typically from 2 to 7 PM, rest in the shade when possible, and drink
plenty of water. Locate nearby cooling centers through local
resources or dial 2-1-1 in Texas.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
719 PM CDT Tue Jul 21 2026

LAZ027>033-044-045-055-073-074-141>143-152>154-241>243-252>254-
TXZ180-201-259>262-515-516-615-616-221700-
/O.EXP.KLCH.HT.Y.0005.000000T0000Z-260722T0000Z/
/O.CON.KLCH.XH.W.0001.260722T1500Z-260723T0100Z/
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 De Quincy, Beaver, Nederland,
Intracoastal City, China, Mamou, Leesville, Welsh, Maurice,
Eunice, Carlyss, Burkeville, Sulphur, Abbeville, Hayes, Branch,
Marksville, Beaumont, Jennings, Sabine Pass, De Ridder, Oakdale,
Holly Springs, Bell City, Morgan City, Bridge City, Vidor,
Cypremort Point, Stephensville, Hathaway, Klondike, Ville Platte,
Fields, Slagle, Farrsville, Pickering, Franklin, St. Martinville,
Westlake, Orange, Burns Point, Bayou Vista, Mt. Union, Vinton,
Centerville, Jamestown, Morse, Town Bluff, Magnolia Springs,
Creole, Wiergate, Spurger, Berwick, Church Point, Hillister,
Rayne, Mauriceville, Evadale, Elton, Newton, Grand Lake, Kaplan,
Port Arthur, Topsy, Hackberry, Fenton, Lake Charles, St. Landry,
Avery Island, Moss Bluff, Lumberton, Bunkie, Crowley, Rutherford
Beach, Lafayette, Kinder, Roganville, Iowa, Mansura, Fort Polk,
Cottonport, Cade, Bleakwood, Johnson Bayou, Lawtell, Gist,
Ivanhoe, Oretta, Jasper, Alexandria, Kirbyville, Patterson, Grand
Chenier, Fred, Woodville, Simmesport, Iota, Lake Arthur, Silsbee,
Buna, Jeanerette, Warren, Breaux Bridge, Reddell, Pineville,
Opelousas, Effie, Meaux, Cameron, New Iberia, Bundick Lake,
Forked Island, Call, Deweyville, Gueydan, and Sea Rim State Park
719 PM CDT Tue Jul 21 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM CDT
WEDNESDAY...
...HEAT ADVISORY HAS EXPIRED...

* WHAT...Dangerously hot conditions with heat index values up to 116
  expected.

* WHERE...Portions of central, south central, southwest, and west
  central Louisiana and southeast Texas.

* WHEN...From 10 AM to 8 PM CDT Wednesday.

* 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.

Monitor the latest forecasts and warnings for updates.

&&

$$

Rua

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
123 PM CDT Tue Jul 21 2026

ARZ229-OKZ049-053-059-064-065-073-075-154-276-376-220100-
/O.CON.KTSA.XH.W.0003.000000T0000Z-260722T0100Z/
Southern Sebastian-Pushmataha-Choctaw-Pawnee-Creek-Okfuskee-
Pittsburg-Latimer-Western Osage-Central Le Flore-Southern Le
Flore-
Including the cities of Hugo, Wilburton, Mansfield, Okemah, Hartford,
Shidler, Huntington, Clayton, Pawnee, Sapulpa, Poteau, Antlers,
Talihina, Patterson, Liberty, Fairfax, and McAlester
123 PM CDT Tue Jul 21 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...Dangerously hot conditions with heat index values from 110
  to 120 expected.

* WHERE...Portions of west central Arkansas and east central,
  northeast, and southeast Oklahoma.

* WHEN...Until 8 PM CDT this evening.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Houston/Galveston TX
1250 PM CDT Tue Jul 21 2026

TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-335>338-
436>439-221100-
/O.NEW.KHGX.XH.W.0002.260722T1600Z-260723T0100Z/
/O.CON.KHGX.HT.Y.0004.000000T0000Z-260722T0100Z/
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 Shepherd, Trinity, Old River-Winfree,
Wharton, Baytown, Brookshire, Pasadena, Houston, Clute, Crockett,
The Woodlands, Caldwell, Palacios, First Colony, Weimar, Brenham,
Prairie View, El Campo, La Marque, Cleveland, Bellville, Sugar
Land, Navasota, Winnie, Bay City, Ganado, Dickinson, Groveton,
Hempstead, Bryan, Friendswood, Lake Jackson, Stowell, Freeport,
Angleton, Galveston, Liberty, League City, Conroe, Surfside
Beach, Huntsville, Corrigan, Columbus, Eagle Lake, Sealy, Dayton,
Missouri City, Texas City, Madisonville, Anahuac, Livingston,
Pearland, Somerville, Mission Bend, College Station, Mont
Belvieu, Waller, Devers, Edna, Coldspring, Alvin, Pecan Grove,
and Rosenberg
1250 PM CDT Tue Jul 21 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY...

* WHAT...For the Heat Advisory, heat index values up to 109. For the
  Extreme Heat Warning, dangerously hot conditions with high
  temperatures between 100 to 104 and heat index values up to 115
  expected.

* WHERE...Portions of south central and southeast Texas.

* WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the
  Extreme Heat Warning, from 11 AM to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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. 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. 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.

Extreme heat is dangerous, especially for those without reliable
shelter. Limit time outdoors during the hottest time of the day,
typically from 1 to 7 PM, rest in the shade when possible, and drink
plenty of water. Locate nearby cooling centers through local
resources or dial 2-1-1 in Texas.

Stay cool, stay hydrated, stay informed.

&&

$$

JM

URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
1220 PM CDT Tue Jul 21 2026

ARZ050-051-059>061-070>073-LAZ004>006-013-014-019>022-OKZ077-TXZ096-
097-220500-
/O.EXT.KSHV.XH.W.0001.000000T0000Z-260722T0500Z/
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Claiborne-Lincoln-Union-Jackson-Ouachita-Winn-Grant-
Caldwell-La Salle-McCurtain-Red River-Bowie-
Including the cities of Jena, Bogata, Mineral Springs, Lewisville,
Farmerville, Montgomery, Clarksville, Hope, Haynesville, Dierks,
Monroe, Winnfield, Grayson, El Dorado, Midway, Olla, Magnolia,
Jonesboro, Dry Prong, Homer, Bernice, Ashdown, Broken Bow, Texarkana,
Nashville, Idabel, Clarks, De Queen, Bradley, Ruston, Colfax,
Columbia, Stamps, and Prescott
1220 PM CDT Tue Jul 21 2026

...EXTREME HEAT WARNING NOW IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

* WHAT...Dangerously hot conditions with heat index values up to 113.

* WHERE...Portions of south central and southwest Arkansas, north
  central and northwest Louisiana, southeast Oklahoma, and northeast
  Texas.

* WHEN...Until midnight CDT tonight.

* 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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Norman OK
1220 PM CDT Tue Jul 21 2026

OKZ043-048-052-220900-
/O.NEW.KOUN.HT.Y.0017.260722T1700Z-260723T0100Z/
/O.CON.KOUN.XH.W.0001.000000T0000Z-260722T0100Z/
Coal-Atoka-Bryan-
Including the cities of Durant, Atoka, and Coalgate
1220 PM CDT Tue Jul 21 2026

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT WEDNESDAY...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 113. For the Heat Advisory, heat index
  values up to 109 expected.

* WHERE...Atoka, Bryan, and Coal Counties.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
  For the Heat Advisory, from noon to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Norman OK
1220 PM CDT Tue Jul 21 2026

OKZ046-047-050-051-220900-
/O.NEW.KOUN.HT.Y.0017.260722T1700Z-260723T0100Z/
/O.CON.KOUN.XH.W.0001.000000T0000Z-260722T0100Z/
Carter-Johnston-Love-Marshall-
Including the cities of Madill, Kingston, Ardmore, Marietta,
Tishomingo, and Thackerville
1220 PM CDT Tue Jul 21 2026

...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT WEDNESDAY...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 110. For the Heat Advisory, heat index
  values up to 106 expected.

* WHERE...Johnston, Marshall, Carter, and Love Counties.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
  For the Heat Advisory, from noon to 8 PM CDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE