Update: Heat advisory affecting North Texas until Wednesday evening

Published Aug 20, 2025

On Wednesday at 1:21 p.m. the NWS Fort Worth TX released an updated heat advisory in effect until 7 p.m. The advisory is for Denton, Collin, Tarrant, Dallas, Johnson, Grayson, Fannin, Lamar, Hunt, Delta, Hopkins, Rockwall, Kaufman, Van Zandt, Rains, Ellis, Henderson, Bosque, Hill, Navarro, Freestone, Anderson, Bell, McLennan, Falls, Limestone, Leon, Milam and Robertson counties.

The NWS adds to anticipate, “Heat index values up to 112 degrees.”

“Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities,” explains the NWS.

This advisory is in effect until 7 p.m.

During heat waves, consider the following tips from the NWS

• Stay hydrated: Drink plenty of fluids.

• Seek shelter: Stay indoors in an air-conditioned room to keep cool.

• Stay out of the sun, and check up on relatives and neighbors.

• Ensure child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.

• Take extra precautions outdoors: If you work or spend time outside, be sure to take additional safety measures.

• Optimal Timing: When possible, reschedule strenuous activities to early morning or evening.

• Recognize early indicators: Learn to identify the warning signs of heat exhaustion and heat stroke.

• Dress for comfort: Wear lightweight and loose-fitting clothing to stay cool.

For a safer outdoor work environment, follow the Occupational Safety and Health Administration (OSHA)’s guidance by scheduling regular rest breaks in shaded or air-conditioned places. If anyone shows signs of heat illness, promptly move them to a cool, shaded area. In an emergency, call 911.

Source: The National Weather Service