A Severe Extreme Heat Warning is in effect for several counties in Texas, according to the National Weather Service (NWS). The warning covers Young, Jack, Wise, Denton, Collin, Stephens, Palo Pinto, Parker, Tarrant, Dallas, Rockwall, Kaufman, Erath, Hood, Somervell, Johnson, and Ellis counties. It remains active until 8:00 PM CDT on 22 August 2026.
The warning indicates dangerously hot conditions with heat index values up to 108. Such extreme heat may increase the risk of heat-related illnesses significantly.
To stay safe during this extreme heat event, the NWS advises taking extra precautions when outside. Stay hydrated, wear lightweight and loose-fitting clothing, and limit strenuous activities to the early morning or evening. Check on relatives and neighbors, and never leave young children or pets in an enclosed vehicle. If you or someone else shows signs of heat stroke, call 911 immediately. For more information, follow the guidance provided by local authorities and emergency services.
