Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
711 PM CDT Sun Aug 23 2026
TXZ171>173-192-193-250000-
/O.CON.KEWX.XH.W.0003.000000T0000Z-260825T0000Z/
/O.CON.KEWX.HT.Y.0008.260825T0000Z-260827T0000Z/
Llano-Burnet-Williamson-Travis-Bastrop-
Including the cities of Burnet, Austin, Llano, Georgetown, and
Bastrop
711 PM CDT Sun Aug 23 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 7 PM MONDAY TO 7 PM CDT
WEDNESDAY...
* WHAT...Dangerously hot conditions with temperatures up to 107 and
heat index values up to 110 are expected Monday afternoon.
Temperatures up to 105 are expected Tuesday and Wednesday.
* WHERE...Bastrop, Burnet, Llano, Travis, and Williamson Counties.
* WHEN...For the Extreme Heat Warning, until 7 PM CDT Monday. For the
Heat Advisory, from 7 PM Monday to 7 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.
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.
&&
$$
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
711 PM CDT Sun Aug 23 2026
TXZ191-205>207-220>222-224-250000-
/O.CON.KEWX.HT.Y.0007.000000T0000Z-260827T0000Z/
Hays-Bexar-Comal-Guadalupe-Atascosa-Wilson-Karnes-De Witt-
Including the cities of Cuero, Seguin, San Antonio, Floresville,
Karnes City, Pleasanton, San Marcos, and New Braunfels
711 PM CDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY...
* WHAT...Temperatures up to 105 and heat index values up to 110
expected.
* WHERE...Atascosa, Bexar, Comal, De Witt, Guadalupe, Hays, Karnes,
and Wilson Counties.
* WHEN...Until 7 PM CDT Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
Tran
URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
711 PM CDT Sun Aug 23 2026
TXZ171>173-192-193-250000-
/O.CON.KEWX.XH.W.0003.000000T0000Z-260825T0000Z/
/O.CON.KEWX.HT.Y.0008.260825T0000Z-260827T0000Z/
Llano-Burnet-Williamson-Travis-Bastrop-
Including the cities of Burnet, Austin, Llano, Georgetown, and
Bastrop
711 PM CDT Sun Aug 23 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM 7 PM MONDAY TO 7 PM CDT
WEDNESDAY...
* WHAT...Dangerously hot conditions with temperatures up to 107 and
heat index values up to 110 are expected Monday afternoon.
Temperatures up to 105 are expected Tuesday and Wednesday.
* WHERE...Bastrop, Burnet, Llano, Travis, and Williamson Counties.
* WHEN...For the Extreme Heat Warning, until 7 PM CDT Monday. For the
Heat Advisory, from 7 PM Monday to 7 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.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Austin/San Antonio TX
711 PM CDT Sun Aug 23 2026
TXZ194-208-209-223-225-250000-
/O.EXP.KEWX.XH.W.0003.000000T0000Z-260824T0000Z/
/O.CON.KEWX.HT.Y.0008.000000T0000Z-260827T0000Z/
Lee-Caldwell-Fayette-Gonzales-Lavaca-
Including the cities of Hallettsville, La Grange, Giddings, Gonzales,
and Lockhart
711 PM CDT Sun Aug 23 2026
...EXTREME HEAT WARNING HAS EXPIRED...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY...
* WHAT...Temperatures up to 105 are expected Monday through
Wednesday.
* WHERE...Caldwell, Fayette, Gonzales, Lavaca, and Lee Counties.
* WHEN...Until 7 PM CDT Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Houston/Galveston TX
258 PM CDT Sun Aug 23 2026
TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-335>338-
436>439-240400-
/O.CON.KHGX.HT.Y.0008.000000T0000Z-260825T0000Z/
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 Lake Jackson, Brookshire, Huntsville, Bay
City, Wharton, Surfside Beach, Columbus, Waller, Hempstead, Pecan
Grove, League City, Edna, Somerville, Baytown, Alvin, Mission Bend,
Cleveland, Texas City, Liberty, Bryan, Pearland, Livingston,
Dickinson, Ganado, The Woodlands, Groveton, Corrigan, Mont Belvieu,
Clute, Navasota, Eagle Lake, Devers, Bellville, Winnie, Conroe,
Anahuac, Missouri City, Freeport, Houston, First Colony, El Campo,
Sugar Land, Rosenberg, Shepherd, Sealy, Caldwell, Galveston, Prairie
View, Crockett, Trinity, Dayton, La Marque, Brenham, Palacios,
Madisonville, Weimar, Old
River-Winfree, Friendswood, Pasadena, Coldspring, Angleton,
Stowell, and College Station
258 PM CDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...
* WHAT...Peak heat index values between 106 and 110
* WHERE...Portions of south central and southeast Texas.
* WHEN...Until 7 PM CDT Monday.
* 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.
&&
$$
