The U.S. National Weather Service Austin-San Antonio has issued a heat advisory through 8 p.m. Thursday.
Temperatures of up to 104 degrees Fahrenheit are expected. Heat index values could reach 112 degrees.
Elevated fire weather conditions also are expected across the Rio Grande Plains, Edwards Plateau, Hill Country and portions of the I-35 corridor.
“Additional heat headlines are likely for portions of South Central Texas beyond Thursday,” NWS said in its latest alert. “There is an increased risk for heat-related illnesses for those spending extended time outdoors and not taking proper precautions…The combination of the hot and dry conditions, as well as moderate wind speeds, continues to promote drying of fuels.”
To prevent fires, Comal County Fire Marshal Kory Klabunde asks residents to exercise care with respect to all outdoor activities that could inadvertently cause wildfires.
Activities to avoid include:
- Use of welding or grinding equipment near grass and dry brush
- Parking vehicles in tall, dry grass and weeds that could be ignited
- Tossing cigarette buts on the ground
Comal County is under a burn ban.
The weather service warned that hot temperatures and high heat indices can cause heat illnesses to occur.
Residents are advised to drink plenty of fluids, stay in air-conditioned rooms, avoid the sun, and check up on relatives and neighbors.
Young children and pets should never be left unattended in vehicles under any circumstances.
The public is advised to take extra precautions when working or spending time outside. Strenuous activities should be rescheduled to early morning or evening.
Know the signs and symptoms of heat exhaustion and stroke. Wear lightweight and loose-fitting clothing when possible.
To reduce risk during work, the U.S. Occupational Safety and Health Administration (OSHA) 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 911.