Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Last Update: 314 PM CDT Tue Apr 14 2026

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Grand Rapids, MI Local Forecast Office

21NM W Saugatuck MI

Marine Zone Forecast

Tonight

South winds 15 to 25 kt becoming southwest. Patchy fog this evening, then areas of dense fog overnight. Thunderstorms likely with a chance of showers this evening, then showers likely with a chance of thunderstorms overnight. Waves 2 to 4 ft.

Wednesday

Southwest winds 10 to 20 kt becoming south. Areas of dense fog in the morning, then patchy dense fog in the afternoon. Rain showers likely with a chance of thunderstorms in the morning, then chance of rain showers and thunderstorms in the afternoon. Waves 1 to 3 ft.

Wednesday Night

South winds 10 to 20 kt diminishing to 10 to 15 kt. Patchy fog in the evening. Rain showers with a chance of thunderstorms. Waves 1 to 3 ft.

Thursday

Southwest winds 15 to 25 kt becoming west 10 to 15 kt in the afternoon. Rain showers likely in the morning, then rain showers likely with a chance of thunderstorms in the afternoon. Waves 1 to 3 ft.

Thursday Night

Northwest winds 5 to 10 kt becoming north. Waves 1 to 3 ft.

Friday

Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft building to 1 to 3 ft.

Friday Night

Southeast winds 15 to 25 kt becoming south. Showers with a chance of thunderstorms. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

Saturday

South winds 15 to 25 kt becoming southwest. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft.

Sunday

West winds to 30 kt becoming northwest. Waves 8 to 12 ft occasionally to 16 ft.