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 >
| NWS Forecast for: Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake (LMZ876) Issued by: National Weather Service Grand Rapids, MI Last Update: 310 AM CDT Wed Jun 17 2026 |  |
Today: Southwest winds 10 to 15 kt becoming south 10 to 20 kt late this morning, then becoming southeast to 30 kt this afternoon. Chance of showers this morning, then showers with a chance of thunderstorms this afternoon. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. Tonight: Southeast winds to 30 kt veering to west. Chance of showers and thunderstorms in the evening, then slight chance of showers overnight. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. Thursday: West winds to 30 kt diminishing to 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. Thursday Night: West winds 10 to 20 kt. Waves 2 to 4 ft. Friday: Northwest winds 10 to 20 kt. Waves 2 to 4 ft. Friday Night: West winds 10 to 15 kt. Waves 1 to 2 ft. Saturday: West winds 10 to 20 kt becoming southwest. Waves 1 to 2 ft. Sunday: East winds 10 to 15 kt becoming northeast 15 to 25 kt. Chance of showers. Waves 1 to 2 ft building to 2 to 4 ft. | |
| Zone Forecast: Lake Michigan from South Haven to Holland MI 5NM offshore to Mid lake (LMZ876) | |
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