Heat Advisory
Status
Event Continued Active alertStart Time
Thu 08/20/2026 01:00 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 1134 PM CDT Wed Aug 19 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON THURSDAY TO 7 PM CDT FRIDAY... * WHAT...Heat index values up to 110 expected. * WHERE...Portions of south central and southeast Texas. * WHEN...From noon Thursday to 7 PM CDT Friday. * 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.
Technical Header
TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-335>338- 436>439-201645- /O.CON.KHGX.HT.Y.0008.260820T1700Z-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 Prairie View, Alvin, Groveton, Brookshire, Waller, Conroe, Houston, Somerville, Pasadena, Eagle Lake, Madisonville, Dayton, Bryan, First Colony, Anahuac, Missouri City, Ganado, Lake Jackson, Wharton, Corrigan, Crockett, Friendswood, Mont Belvieu, El Campo, Edna, Cleveland, Old River-Winfree, La Marque, Trinity, Livingston, Navasota, Caldwell, Bellville, Brenham, Mission Bend, Texas City, Galveston, College Station, Bay City, Pearland, Clute, League City, Coldspring, Shepherd, Columbus, Huntsville, Palacios, Hempstead, Sugar Land, Angleton, Winnie, Baytown, The Woodlands, Weimar, Dickinson, Stowell, Pecan Grove, Rosenberg, Surfside Beach, Devers, Freeport, Liberty, and Sealy 1134 PM CDT Wed Aug 19 2026
