Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Dallas/Fort Worth, TX

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460
WWUS74 KFWD 180554
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1254 AM CDT Tue Aug 18 2026

TXZ091>095-100>107-115>123-129>134-181800-
/O.CON.KFWD.XH.W.0002.260818T1700Z-260819T0100Z/
/O.CON.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 Canton, Cisco, Fort Worth, Carrollton,
Decatur, Kaufman, Van, Edgewood, Stephenville, Bowie, Wills Point,
Gainesville, Cooper, Paris, Gorman, Breckenridge, Briar, Arlington,
Commerce, Heath, Lewisville, Weatherford, Jacksboro, Burleson, Olney,
Ennis, Ranger, Dublin, Allen, Grand Saline, Flower Mound, McKinney,
Point, Midlothian, Graham, Mineral Wells, Glen Rose, Denison, Denton,
Dallas, Emory, Nocona, East Tawakoni, Bridgeport, Eastland, Oak Trail
Shores, Forney, Bonham, Granbury, Terrell, Rockwall, Waxahachie,
Cleburne, Greenville, Sherman, Sulphur Springs, Plano, and Frisco
1254 AM CDT Tue Aug 18 2026

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

* WHAT...For the Heat Advisory, heat index values up to 107. For the
  Extreme Heat Warning, temperatures up to 108.

* WHERE...Portions of North Texas.

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

* 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.

&&

$$

TXZ135-146-148-181800-
/O.CON.KFWD.HT.Y.0025.000000T0000Z-260819T0100Z/
Henderson-Navarro-Anderson-
Including the cities of Palestine, Athens, Corsicana, and Gun Barrel
City
1254 AM CDT Tue Aug 18 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Temperatures and heat index values up to 105.

* 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.

&&

$$

TXZ144-145-147-159>162-175-181800-
/O.CON.KFWD.HT.Y.0026.000000T0000Z-260819T0100Z/
Bosque-Hill-Freestone-McLennan-Falls-Limestone-Leon-Robertson-
Including the cities of Oakwood, Calvert, Clifton, Mexia, Hillsboro,
Wortham, Buffalo, Hearne, Valley Mills, Franklin, Jewett, Waco,
Marlin, Meridian, Groesbeck, Fairfield, Centerville, Teague, and
Normangee
1254 AM CDT Tue Aug 18 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Temperatures and heat index values up to 105.

* 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.

&&

$$

TXZ141>143-156>158-174-181800-
/O.CON.KFWD.HT.Y.0027.260818T1700Z-260819T0100Z/
Comanche-Mills-Hamilton-Lampasas-Coryell-Bell-Milam-
Including the cities of Temple, Comanche, Lampasas, Hamilton,
Gatesville, Cameron, Copperas Cove, Hico, De Leon, Rockdale, Killeen,
Goldthwaite, and Fort Hood
1254 AM CDT Tue Aug 18 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS
EVENING...

* WHAT...Temperatures up to 104.

* WHERE...Bell, Comanche, Coryell, Hamilton, Lampasas, Mills, and
  Milam Counties.

* WHEN...From noon today to 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