Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

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Last Map Update: Fri, Sep 4, 2026 at 7:00:07 pm MDT

Watches, Warnings & Advisories

National Weather Service Grand Junction, CO

National Weather Service NWS Flagstaff, AZ

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National Weather Service NWS Tucson Arizona

Flash Flood Warning

Flood Advisory

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Hazardous Weather Outlook

Weekend Storms

Weekend Temperatures

Temp & Precip Outlook

Scattered to numerous afternoon storms will continue to favor development over the mountains, but will be slower to move off over surrounding lower elevations. Locally heavy rainfall will threaten flash flooding over low-lying and flood prone areas, including recent burn scars. Though most areas will pick up less than one half inch of rainfall, isolated areas could receive over an inch.