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 >

Hazardous Weather Conditions

Small Craft Advisory in effect from June 17, 01:00 PM CDT until June 18, 03:00 PM CDT

Last Update: 419 AM EDT Wed Jun 17 2026

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For More Weather Information:

Grand Rapids, MI Local Forecast Office

4NM W Muskegon MI

Marine Zone Forecast

Rest Of Tonight

West winds around 15 knots. Partly cloudy. Waves 2 to 4 feet.

Wednesday

West winds 10 to 20 knots backing south in the late morning and early afternoon, then backing southeast 20 to 25 knots early in the afternoon. Rain showers and a chance of thunderstorms. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and early afternoon, then building to 2 to 4 feet early in the afternoon.

Wednesday Night

Southeast winds to 30 knots veering west after midnight. Rain showers and a chance of thunderstorms. Waves 3 to 6 feet.

Thursday

Northwest winds to 30 knots backing west 15 to 20 knots early in the afternoon. Partly sunny with a slight chance of rain showers. Waves 5 to 7 feet.

Thursday Night

West winds 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet.

Juneteenth

Northwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet.

Saturday

West winds 10 to 15 knots. Sunny. Waves 1 to 2 feet.

Sunday

East winds 10 to 20 knots. Mostly cloudy with a chance of rain showers. Waves around 1 foot.