Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1245 PM CDT Mon Aug 17 2026
TXZ091>095-100>107-115>123-129>134-180600-
/O.NEW.KFWD.XH.W.0002.260818T1700Z-260819T0100Z/
/O.EXT.KFWD.HT.Y.0025.000000T0000Z-260818T1700Z/
Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin-
Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas-
Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell-
Johnson-Ellis-
Including the cities of Weatherford, Emory, Bowie, Flower Mound,
Kaufman, Frisco, Greenville, Oak Trail Shores, Glen Rose, Fort Worth,
East Tawakoni, Breckenridge, Cisco, Sherman, Bridgeport, Allen,
Gainesville, Waxahachie, Forney, Granbury, Heath, Commerce,
Jacksboro, Terrell, Bonham, Cleburne, Ennis, Dallas, Olney, Burleson,
Eastland, Mineral Wells, Gorman, Carrollton, Cooper, Edgewood, Van,
Briar, Midlothian, Rockwall, Ranger, Nocona, Grand Saline, Wills
Point, Denton, Dublin, Sulphur Springs, Paris, McKinney, Lewisville,
Graham, Plano, Denison, Arlington, Point, Stephenville, Decatur, and
Canton
1245 PM CDT Mon Aug 17 2026
...HEAT ADVISORY NOW IN EFFECT UNTIL NOON CDT TUESDAY...
...EXTREME HEAT WARNING IN EFFECT FROM NOON TO 8 PM CDT TUESDAY...
* WHAT...For the Heat Advisory, heat index values up to 106. For the
Extreme Heat Warning, dangerously hot conditions with temperatures
values up to 108 expected.
* WHERE...Portions of North Texas.
* WHEN...For the Heat Advisory, until noon CDT Tuesday. For the
Extreme Heat Warning, from noon to 8 PM CDT Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1245 PM CDT Mon Aug 17 2026
TXZ135-146-148-180600-
/O.EXT.KFWD.HT.Y.0025.000000T0000Z-260819T0100Z/
Henderson-Navarro-Anderson-
Including the cities of Palestine, Athens, Gun Barrel City, and
Corsicana
1245 PM CDT Mon Aug 17 2026
...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT TUESDAY...
* WHAT...Heat index values up to 106.
* WHERE...Navarro, Anderson, and Henderson Counties.
* WHEN...Until 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.
Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, the occupational safety and health
administration recommends scheduling frequent rest breaks in shaded
or air conditioned environments. Anyone overcome by heat should be
moved to a cool and shaded location. Heat stroke is an emergency!
Call 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1245 PM CDT Mon Aug 17 2026
TXZ141>143-156>158-174-180600-
/O.NEW.KFWD.HT.Y.0027.260818T1700Z-260819T0100Z/
Comanche-Mills-Hamilton-Lampasas-Coryell-Bell-Milam-
Including the cities of Comanche, Lampasas, Hico, De Leon,
Gatesville, Fort Hood, Temple, Cameron, Rockdale, Goldthwaite,
Copperas Cove, Hamilton, and Killeen
1245 PM CDT Mon Aug 17 2026
...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT TUESDAY...
* WHAT...Heat index values up to 105 expected.
* WHERE...Bell, Comanche, Coryell, Hamilton, Lampasas, Mills, and
Milam Counties.
* WHEN...From noon to 8 PM CDT Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1245 PM CDT Mon Aug 17 2026
TXZ144-145-147-159>162-175-180600-
/O.EXT.KFWD.HT.Y.0026.000000T0000Z-260819T0100Z/
Bosque-Hill-Freestone-McLennan-Falls-Limestone-Leon-Robertson-
Including the cities of Meridian, Jewett, Franklin, Waco, Buffalo,
Clifton, Calvert, Hillsboro, Groesbeck, Centerville, Normangee,
Marlin, Teague, Oakwood, Mexia, Fairfield, Wortham, Valley Mills, and
Hearne
1245 PM CDT Mon Aug 17 2026
...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT TUESDAY...
* WHAT...Heat index values up to 107.
* WHERE...Bosque, Falls, Freestone, Hill, Limestone, McLennan, Leon,
and Robertson Counties.
* WHEN...Until 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.
Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, the occupational safety and health
administration recommends scheduling frequent rest breaks in shaded
or air conditioned environments. Anyone overcome by heat should be
moved to a cool and shaded location. Heat stroke is an emergency!
Call 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.
&&
$$
Hernandez
URGENT - WEATHER MESSAGE
National Weather Service Lubbock TX
1036 PM CDT Mon Aug 17 2026
TXZ024>026-031-032-037-038-042>044-190100-
/O.CON.KLUB.HT.Y.0019.260818T1800Z-260819T0100Z/
Briscoe-Hall-Childress-Motley-Cottle-Dickens-King-Garza-Kent-
Stonewall-
Including the cities of Guthrie, Lake Alan Henry, Dickens, Quitaque,
Matador, Silverton, Kirkland, Dumont, Old Glory, Turkey, Aspermont,
Memphis, Cee Vee, Paducah, Childress, Spur, Jayton, Roaring Springs,
and Post
1036 PM CDT Mon Aug 17 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 8 PM CDT TUESDAY...
* WHAT...Temperatures up to 109 expected.
* WHERE...Areas off the Caprock.
* WHEN...From 1 PM to 8 PM CDT Tuesday.
* 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.
&&
$$
30
URGENT - WEATHER MESSAGE
National Weather Service San Angelo TX
1009 PM CDT Mon Aug 17 2026
TXZ049-054-098-099-113-114-127-128-181200-
/O.NEW.KSJT.HT.Y.0013.260818T1800Z-260819T0000Z/
Fisher-Nolan-Haskell-Throckmorton-Jones-Shackelford-Taylor-Callahan-
Including the cities of Irby, Hamlin, Woodson, Eula, Clyde,
Throckmorton, Baird, Roby, Anson, Rotan, Stith, Dudley, Albany,
Truby, Sweetwater, Cross Plains, Haskell, Abilene, Stamford, Tuxedo,
and Funston
1009 PM CDT Mon Aug 17 2026
...HEAT ADVISORY IN EFFECT FROM 1 PM TO 7 PM CDT TUESDAY...
* WHAT...Heat index values up to 105 expected.
* WHERE...Callahan, Fisher, Haskell, Jones, Nolan, Shackelford,
Taylor, and Throckmorton Counties.
* WHEN...From 1 PM to 7 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Heat Advisory means that hot weather conditions are occurring or
expected. This will create a situation in which heat illnesses are
possible.
Never, ever, leave children or pets alone in enclosed vehicles, not
even for a few minutes. Car interiors can reach lethal temperatures
in a matter of minutes.
Stay indoors and seek air-conditioned buildings. Drink water more
than usual, and avoid dehydrating alcoholic, sugary, or caffeinated
drinks. Dress for the heat by wearing lightweight and light colored
clothing. Eat small meals and eat more often. Monitor those with a
higher vulnerability to heat, including small children. Check in on
family, friends, and neighbors, especially the elderly. If engaging
in outdoor activity, take longer and more frequent breaks and avoid
the hottest parts of the day.
&&
$$
JW
URGENT - WEATHER MESSAGE
National Weather Service Norman OK
825 PM CDT Mon Aug 17 2026
OKZ036>038-044-TXZ085-086-088>090-181530-
/O.EXP.KOUN.HT.Y.0037.000000T0000Z-260818T0100Z/
/O.CON.KOUN.HT.Y.0038.260818T1600Z-260819T0100Z/
Jackson-Tillman-Comanche-Cotton-Wilbarger-Wichita-Baylor-Archer-Clay-
Including the cities of Wichita Falls, Temple, Sheppard AFB, Archer
City, Lawton, Vernon, Henrietta, Holliday, Lakeside City, Altus,
Seymour, Scotland, Frederick, and Walters
825 PM CDT Mon Aug 17 2026
...HEAT ADVISORY HAS EXPIRED...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY...
* WHAT...Heat index values up to 108 expected.
* WHERE...In Oklahoma, Comanche, Cotton, Jackson, and Tillman
Counties. In Texas, Archer, Baylor, Clay, Wichita, and Wilbarger
Counties.
* WHEN...From 11 AM to 8 PM CDT Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Norman OK
825 PM CDT Mon Aug 17 2026
OKZ004>006-009>011-014>017-021>023-033>035-TXZ083-084-087-181530-
/O.CON.KOUN.HT.Y.0038.260818T1600Z-260819T0100Z/
Harper-Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey-
Custer-Blaine-Beckham-Washita-Caddo-Harmon-Greer-Kiowa-Hardeman-
Foard-Knox-
Including the cities of Cherokee, Hobart, Hammon, Burns Flat, Carmen,
Crowell, Laverne, Sayre, Buffalo, Snyder, Mangum, Taloga, Hinton,
Cordell, Quanah, Hollis, Elk City, Knox City, Watonga, Woodward,
Arnett, Granite, Fargo, Anadarko, Seiling, Alva, Okeene, Munday,
Helena, Geary, Weatherford, Cheyenne, Clinton, Leedey, Vici, Gage,
Shattuck, Sentinel, and Fairview
825 PM CDT Mon Aug 17 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY...
* WHAT...Heat index values up to 106 expected.
* WHERE...Portions of northwest, southwest, and western Oklahoma and
northern Texas.
* WHEN...From 11 AM to 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
1158 AM CDT Mon Aug 17 2026
ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-181200-
/O.EXT.KSHV.HT.Y.0010.000000T0000Z-260820T0100Z/
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-McCurtain-Red River-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-Sabine-
Including the cities of Shreveport, Jacksonville, Bogata,
Clarksville, Tyler, De Queen, Mineola, Lewisville, Texarkana, Hughes
Springs, Stonewall, Bossier City, Clarks, Ringgold, Broken Bow,
Martin, Springhill, Omaha, Pineland, Montgomery, Bradley, Mount
Vernon, Rusk, Bernice, Minden, Naples, Hope, Henderson, Gibsland,
Mineral Springs, Monroe, Quitman, Jefferson, Carthage, Jena, Midway,
Olla, Mansfield, Columbia, Hemphill, Arcadia, Winnfield, Hawkins,
Lufkin, El Dorado, Zwolle, Colfax, Marshall, San Augustine,
Farmerville, Queen City, Magnolia, Coushatta, Ruston, Winnsboro,
Logansport, Nashville, Big Sandy, Dierks, Atlanta, Homer,
Haynesville, Nacogdoches, Gilmer, Stamps, Natchitoches, Daingerfield,
Pittsburg, Longview, Jonesboro, Linden, Ashdown, Grayson, Mount
Pleasant, Center, Many, Dry Prong, Idabel, Pleasant Hill, Prescott,
and Lone Star
1158 AM CDT Mon Aug 17 2026
...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT WEDNESDAY...
* WHAT...Heat index values up to 109.
* WHERE...Portions of south central and southwest Arkansas, north
central and northwest Louisiana, southeast Oklahoma, and east and
northeast Texas.
* WHEN...Until 8 PM CDT Wednesday.
* 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.
&&
$$
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