Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

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Last Map Update: Wed, Aug 26, 2026 at 7:00:18 pm PDT

Watches, Warnings & Advisories

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National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

National Weather Service NWS Flagstaff, AZ

Extreme Heat Warning

Red Flag Warning

Air Quality Alert

Thunderstorm Outlook Today

Thunderstorm Outlook Thursday

Thunderstorm Probabilities Thursday and Friday

Unseasonably Warm Today and Thursday

Cooling Trend Friday and Saturday

Isolated dry thunderstorms are expected in most of Northern and Central Nevada from 12 PM PDT this afternoon until 8 PM PDT this evening. "Dry thunderstorms" are thunderstorms that produce little or no rainfall at the surface. In combination with arid fuels (i.e. vegetation), dry thunderstorms can ignite wildfires with lightning, but will not produce much rain to put the wildfires out.

Isolated dry thunderstorms are expected in Northeastern Nevada from 12 PM PDT Thursday afternoon until 8 PM PDT Thursday evening. "Dry thunderstorms" are thunderstorms that produce little or no rainfall at the surface. In combination with arid fuels (i.e. vegetation), dry thunderstorms can ignite wildfires with lightning, but will not produce much rain to put the wildfires out.

Isolated dry thunderstorms are expected in Eastern Nevada. (pink, shaded areas) both Thursday afternoon and Friday afternoon. "Dry thunderstorms" are thunderstorms that produce little or no rainfall at the surface. In combination with arid fuels (i.e. vegetation), dry thunderstorms can ignite wildfires with lightning, but will not produce much rain to put the wildfires out.

High temperatures throughout Northern and Central Nevada both this afternoon and Thursday afternoon will be around five degrees above normal for this time of year.

High temperatures throughout Northern and Central Nevada Friday afternoon will be around five degrees cooler than Thursday afternoon. Maximum temperatures across Northern and Central Nevada Saturday afternoon will be a couple of degrees below normal for this time of year.