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: Tue, Jun 16, 2026 at 5:54:26 pm CDT

Heat Advisory in effect from 11 AM MDT / noon CDT through 9 PM MDT / 10 PM CDT Wednesday. Hazardous heat is expected for all of the forecast area. Take proper precautions to minimize impacts from hazardous heat. Drink plenty of water, stay in an air-conditioned room, stay out of the sun, and limit time spent outdoors.
Major Heat Risk is forecast for much of the area Wednesday.
High temperatures of 100ºF and above and hazardous heat are forecast for late morning through evening on Wednesday.

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