Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

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Last Map Update: Mon, Aug 31, 2026 at 7:46:35 am 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

Red Flag Warning

Flood Watch

Fire Weather Watch

Thunderstorm Outlook Today

Thunderstorm Outlook Tuesday

Saturday's Excessive Rainfall Outlook

7-Day Temperature Forecast

Isolated to scattered showers and thunderstorms are expected across much of northern and central Nevada from 11 AM PDT this morning until 9 PM PDT this evening. A few of these thunderstorms could be strong. These thunderstorms may produce wind gusts up to 55 mph, along with small hail and dangerous cloud to ground lightning.

Isolated showers and thunderstorms are expected across portions of northeast Nevada from 12 PM PDT Tuesday afternoon until 8 PM PDT Tuesday evening. A few of these thunderstorms could be strong. These thunderstorms may produce wind gusts up to 45 mph, small hail, and dangerous cloud to ground lightning.

Elevated fire weather conditions will develop across northern Nevada from 12 PM PDT Tuesday afternoon until 8 PM PDT Tuesday evening. With very dry vegetation across the area, these breezy winds and low relative humidity values can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

Temperatures for the next seven days will be at or just below normal for many locations across northern and central Nevada. Highs will be in the 70s and 80s with lows in the 40s.