⚠️ Heat Advisory – Williamson; Hays; Travis; Bastrop; Lee; Bexar; Comal; Guadalupe; Caldwell; Fayette; Atascosa; Wilson; Karnes; Gonzales; De Witt; Lavaca – Sunday, September 13, 2026

Heat Advisory issued September 13 at 12:19PM CDT until September 14 at 7:00PM CDT by NWS Austin/San Antonio TX

Details

* WHAT…For the first Heat Advisory, heat index values up to 111.
For the second Heat Advisory, heat index values up to 111 expected.

* WHERE…The I-35 corridor and Coastal Plains.

* WHEN…For the first Heat Advisory, until 7 PM CDT this evening.
For the second Heat Advisory, from noon to 7 PM CDT Monday.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.

Instructions

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.