Weather Alerts For Rio Medina, TX

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING # DETAILS -------------------- WHAT Dangerously hot conditions with heat index values of 113-118 expected. WHERE A portion of south central Texas. WHEN From noon today to 8 PM CDT this evening. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ISSUED AT Thursday, June 18, 2026 at 2:29 AM CDT ISSUED BY National Weather Service Austin/San Antonio TX HEADER URGENT - WEATHER MESSAGE # 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. Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. # AREAS AFFECTED -------------------- Guadalupe, Karnes, Atascosa, Bastrop, Bexar, Caldwell, Comal, De Witt, Dimmit, Fayette, Frio, Gonzales, Hays, Lavaca, Lee, Maverick, Medina, Travis, Uvalde, Williamson, Wilson, Zavala Including the cities of Crystal City, Hallettsville, Carrizo Springs, Lockhart, Seguin, Cuero, Karnes City, Bastrop, San Antonio, Giddings, Uvalde, New Braunfels, Floresville, Hondo, Pleasanton, Austin, Gonzales, San Marcos, Georgetown, Pearsall, Eagle Pass, and La Grange