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 10:54:46 am PDT

Watches, Warnings & Advisories

National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

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National Weather Service NWS Flagstaff, AZ

National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Lake Wind Advisory

Air Quality Alert

Heat With a Chance of Monsoon

Monsoon shower and thunderstorm chances return this afternoon and evening, with the best chances over northwestern Arizona. Primary concerns with storms today will be strong gusty winds and dry lightning.

Areas of Severe Thunderstorms and Heat

NWS Forecast Office Las Vegas, NV