Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

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Last Map Update: Thu, Aug 27, 2026 at 6:36:16 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

Dust Advisory

Special Weather Statement

Air Quality Alert

Thunderstorm Outlook Today

Thunderstorm Outlook Friday

Thunderstorm Probabilities Friday and Saturday

Excessive Rainfall Outlook

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 to scattered thunderstorms are expected across much of Northern and Central Nevada from 12 PM PDT Friday afternoon until 9 PM PDT Friday evening. A few of these thunderstorms could be strong with wind gusts to 50 mph along with brief moderate to heavy rain. Additional impacts include cloud to ground lightning and small hail.

A much more moist air mass will be pushing into northern and central Nevada Friday and Saturday. As a result, the best chances for thunderstorms will be centered across central and eastern Nevada on both days. These storms could bring strong wind gusts to 50 mph along with brief moderate to heavy rain and dangerous cloud to ground lightning.

Isolated to scattered showers and thunderstorms will develop across northern and central Nevada from 12 PM PDT Friday afternoon until 9 PM PDT Friday evening. Small hail and wind gusts near 50 miles per hour are a couple of hazards associated with strong thunderstorms. In addition to dangerous cloud to ground lightning strikes, any thunderstorm can produce intense rainfall rates, leading to localized flooding and debris flows.