Heat Advisory
Status
Event Continued Active alertStart Time
Thu 06/18/2026 12:00 PM EDTEnd Time
Fri 06/19/2026 11:00 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 1209 AM CDT Thu Jun 18 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 10 PM CDT FRIDAY... * WHAT...Heat index values of 107 to 112 degrees Fahrenheit (41 to 44 degrees Celsius) expected. * WHERE...Portions of south central and southeast Texas. * WHEN...From 11 AM this morning to 10 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>439-181315- /O.CON.KHGX.HT.Y.0001.260618T1600Z-260620T0300Z/ 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, Waller, Sugar Land, Clute, Wharton, Mont Belvieu, College Station, First Colony, La Marque, Coldspring, Stowell, Cleveland, Surfside Beach, Galveston, Angleton, Caldwell, Madisonville, Somerville, Eagle Lake, Sealy, Houston, Ganado, Old River-Winfree, Livingston, Missouri City, Dickinson, Hempstead, Brookshire, Brenham, Alvin, Winnie, Freeport, Devers, Corrigan, Prairie View, Bryan, Bellville, Lake Jackson, Texas City, Friendswood, Columbus, El Campo, Rosenberg, Shepherd, Pearland, Anahuac, Mission Bend, Weimar, Crockett, Pecan Grove, Huntsville, Baytown, Palacios, The Woodlands, Edna, League City, Pasadena, Groveton, Conroe, Liberty, Bay City, Trinity, and Navasota 1209 AM CDT Thu Jun 18 2026
