Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

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Last Map Update: Wed, Jul 29, 2026 at 3:24:48 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

Extreme Heat Warning

Heat Advisory

Extreme Heat Watch

Air Quality Alert

Smoke from the Secret Pass wildfire will impact Northeastern Nevada today, resulting in unhealthy air quality for sensitive groups. People with heart or lung disease, older adults, children, and teens, should reduce exposure by choosing less strenuous activities or shortening the amount of time you are active outdoors. An Air Quality Alert is in effect until 10 AM PDT Wednesday morning.