National Weather Service United States Department of Commerce

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 5:54:22 pm MDT

The latest ensemble models suggest a trough will move in late this weekend into early next week to bring accumulating rain, especially north of the Missouri River. There is uncertainty in the system tracking north or weakening as it moves in, which may reduce rainfall totals.
A Red Flag Warning is in effect for areas around the lower Yellowstone River until 9pm. Elevated fire condition are expected with relative humidity as low as 15% and gusty southeast winds along with hot weather and dry fuels.

 

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