August 21, 2026 - Hot conditions to continue with an Extreme Heat Warning in effect for portions of East Texas, Northwest Louisiana, and South Arkansas today. A Heat Advisory remains in effect elsewhere across the ArkLaTex.
A few storms capable of producing damaging wind gusts will be possible across portions of Northeast Texas and north Louisiana later today.
The Heat Wave shows no signs of giving way as flash drought conditions continue across the entire Four State Region. As a result, much of the region is under a Burn Ban at this time. The wildfire threat will continue.
Scattered showers and thunderstorms expected this afternoon and evening with highs continuing to range from near 100 to near 105 degrees with higher heat index values.
Extreme Heat Warning Until 9pm Today
Heat Advisory Until 8pm Saturday
The National Weather Service, Shreveport, LA issued a Extreme Heat Warning at 11:21am on Friday, August 21, 2026. The Heat Advisory in effect from 9pm this evening to 8pm Saturday and the Extreme Heat warning remains in effect until 9pm this evening.
For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 113. For the Heat Advisory, heat index values up to 112 expected for portions of south central and southwest Arkansas, north central and northwest Louisiana, and east and northeast Texas.
For the Extreme Heat Warning, until 9 PM CDT this evening. For the Heat Advisory, from 9 PM this evening to 8 PM CDT Saturday.
Impact:
Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
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 and 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.
- 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.
