National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

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Last Map Update: Wed, Jun 17, 2026 at 8:02:20 am PDT

Conditions today, Wednesday, June 17, remain warm, dry, and breezy across the Inland Northwest. Wind gusts 20-30 mph are expected alongside relative humidity values 15-25 percent. New and ongoing fires in dry grasses may quickly spread as winds increase this afternoon.
Very warm temperatures will result moderate HeatRisk Friday, June 19, especially across the Spokane area and Columbia Basin. Moderate HeatRisk is dangerous to those who are sensitive to heat, especially those without effective cooling and/or adequate hydration. Major HeatRisk affects anyone without cooling/hydration.

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