Heat Advisory
Status
Event Continued Active alertStart Time
Thu 08/20/2026 02:30 PM EDTEnd Time
Fri 08/21/2026 08:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Houston, TX ∙ Pasadena, TX ∙ College Station, TX ∙ League City, TX ∙ Sugar Land, TX ∙ Pearland, TX ∙ Baytown, TX ∙ Bryan, TX ∙ Missouri City, TX ∙ Conroe, TXFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 130 PM CDT Thu Aug 20 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT FRIDAY... * WHAT...Peak heat index values between 106-112F. * WHERE...Portions of south central and southeast Texas. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...This advisory will likely need to be extended into the weekend. 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.
Technical Header
TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-335>338- 436>439-210230- /O.CON.KHGX.HT.Y.0008.000000T0000Z-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 Dayton, Texas City, Pearland, Huntsville, Coldspring, Sealy, Liberty, The Woodlands, First Colony, Wharton, Bellville, Alvin, Navasota, Trinity, Groveton, Shepherd, Eagle Lake, Mission Bend, Angleton, Pasadena, Baytown, Corrigan, Mont Belvieu, Cleveland, Old River-Winfree, Crockett, Bryan, Dickinson, Conroe, Livingston, Edna, Devers, Pecan Grove, Stowell, Columbus, Hempstead, Missouri City, Waller, Friendswood, Houston, Weimar, Somerville, Madisonville, Clute, Ganado, Winnie, Sugar Land, Freeport, Surfside Beach, Caldwell, Prairie View, Anahuac, Brookshire, Bay City, League City, La Marque, El Campo, College Station, Rosenberg, Galveston, Lake Jackson, Brenham, and Palacios 130 PM CDT Thu Aug 20 2026
