National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Aug 20, 2026 at 8:08:35 am CDT

Dangerously hot conditions will persist in parts of the area today, with slight relief in areas north of I-40. An Extreme Heat Warning is in effect for far southeast OK from 1PM to 8 PM, and a Heat Advisory is in effect for east central OK and west central AR.
High heat stress conditions will persist and will continue to impact outdoor activities. Some minor heat relief is forecast on today and Friday. Dangerous heat returns this weekend into next week.
Hot temperatures continue, with isolated to scattered thunderstorm potential tonight into Thursday morning. Slightly cooler for some on Thursday and into Friday, but back to the hot weather by this upcoming weekend.
KSRX Radar (Fort Smith, AR).
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