649 FZUS53 KGRR 172303 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 703 PM EDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-180800- Pentwater to Manistee MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...South winds 15 to 25 knots. Partly sunny. Waves 2 to 3 feet. .TONIGHT...South winds 15 to 25 knots. Rain showers and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West winds 15 to 25 knots. Partly sunny with a chance of rain showers. Waves 4 to 6 feet. .SATURDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to 6 feet. .SUNDAY...West winds 15 to 25 knots veering northwest early in the afternoon. Mostly sunny. Waves 3 to 5 feet. .SUNDAY NIGHT...North winds 10 to 15 knots veering northeast after midnight. Mostly clear. Waves 2 to 3 feet. .MONDAY...South winds around 10 knots veering southwest in the late morning and afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY...South winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .WEDNESDAY...Northeast winds 10 to 15 knots backing northwest early in the afternoon. Sunny. Waves 1 to 2 feet. $$ LMZ848-180800- Whitehall to Pentwater MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...South winds 15 to 25 knots. Mostly sunny. Waves 2 to 3 feet. .TONIGHT...South winds 20 to 25 knots. Rain showers and a chance of thunderstorms. Waves 4 to 6 feet. .SATURDAY...West winds 20 to 25 knots. Partly sunny with a chance of rain showers. Waves 4 to 6 feet. .SATURDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to 6 feet. .SUNDAY...Northwest winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .SUNDAY NIGHT...North winds 10 to 20 knots veering northeast after midnight. Mostly clear. Waves 2 to 3 feet. .MONDAY...East winds around 10 knots veering southwest in the late morning and afternoon. Sunny. Waves around 1 foot. .TUESDAY...South winds to 30 knots. Mostly sunny. Waves 6 to 8 feet. .WEDNESDAY...Northeast winds 10 to 15 knots backing northwest early in the afternoon. Sunny. Waves around 1 foot. $$ LMZ847-180800- Grand Haven to Whitehall MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...Southeast winds 15 to 20 knots. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...South winds 15 to 25 knots. Rain showers and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West winds 20 to 25 knots. Partly sunny with a chance of rain showers. Waves 5 to 7 feet. .SATURDAY NIGHT...West winds 20 to 25 knots. Partly cloudy. Waves 4 to 6 feet. .SUNDAY...West winds 15 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .SUNDAY NIGHT...North winds 10 to 20 knots veering northeast around 10 knots after midnight. Mostly clear. Waves 1 to 3 feet. .MONDAY...East winds around 10 knots veering south in the late morning and early afternoon, then veering southwest early in the afternoon. Sunny. Waves around 1 foot. .TUESDAY...South winds to 30 knots veering southwest 20 to 25 knots early in the afternoon. Mostly sunny. Waves 5 to 7 feet. .WEDNESDAY...East winds 10 to 15 knots veering southeast in the late morning and early afternoon, then veering southwest early in the afternoon. Sunny. Waves around 1 foot. $$ LMZ846-180800- Holland to Grand Haven MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...South winds 15 to 20 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South winds 15 to 25 knots becoming after midnight. Rain showers and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West winds 20 to 25 knots. Partly sunny with a chance of rain showers. Waves 5 to 7 feet. .SATURDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to 6 feet. .SUNDAY...West winds 20 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .SUNDAY NIGHT...Northwest winds 10 to 20 knots veering northeast around 10 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .MONDAY...East winds around 10 knots veering southeast in the late morning and early afternoon, then veering southwest early in the afternoon. Sunny. Waves around 1 foot. .TUESDAY...South winds to 30 knots veering southwest 20 to 25 knots early in the afternoon. Mostly sunny. Waves 5 to 7 feet. .WEDNESDAY...East winds 10 to 15 knots veering southwest early in the afternoon. Sunny. Waves 1 to 2 feet. $$ LMZ845-180800- South Haven to Holland MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...South winds 15 to 20 knots. Mostly sunny. Waves around 1 foot. .TONIGHT...South winds 15 to 25 knots veering southwest after midnight. Rain showers and a chance of thunderstorms. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. .SATURDAY...West winds 20 to 25 knots. Partly sunny with a chance of rain showers. Waves 5 to 7 feet. .SATURDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to 6 feet. .SUNDAY...West winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .SUNDAY NIGHT...Northwest winds 10 to 20 knots veering northeast around 10 knots after midnight. Mostly clear. Waves 1 to 3 feet. .MONDAY...Northeast winds around 10 knots veering southeast in the late morning and early afternoon, then veering west early in the afternoon. Sunny. Waves around 1 foot. .TUESDAY...South winds 20 to 25 knots veering southwest 15 to 20 knots early in the afternoon. Mostly sunny. Waves 3 to 5 feet. .WEDNESDAY...East winds 10 to 15 knots backing north early in the afternoon. Sunny. Waves 1 to 2 feet. $$ LMZ844-180800- St Joseph to South Haven MI- 703 PM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .THROUGH EARLY EVENING...South winds around 15 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South winds 15 to 25 knots veering southwest after midnight. A chance of showers and thunderstorms in the evening, then rain showers and a chance of thunderstorms after midnight. Waves 2 to 4 feet. .SATURDAY...West winds 20 to 25 knots. Partly sunny with a chance of rain showers. Waves 4 to 6 feet. .SATURDAY NIGHT...Northwest winds 20 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .SUNDAY...West winds 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet. .SUNDAY NIGHT...North winds 10 to 15 knots veering northeast after midnight. Mostly clear. Waves 1 to 3 feet. .MONDAY...Northeast winds 5 to 10 knots backing west early in the afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY...South winds 20 to 25 knots veering southwest 15 to 20 knots early in the afternoon. Mostly sunny. Waves 2 to 4 feet. .WEDNESDAY...East winds 10 to 15 knots backing north early in the afternoon. Sunny. Waves 1 to 2 feet. $$  421 FZUS53 KGRB 172345 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 645 PM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-180400- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 645 PM CDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...S wind 15 to 25 kts veering SW 10 to 15 kts, then veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ521-180400- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- 645 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... .TONIGHT...S wind 15 to 25 kts veering NW 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ541-180400- Rock Island Passage to Sturgeon Bay WI- 645 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...S wind 15 to 25 kts veering NW after midnight. Waves 5 to 8 ft. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...NW wind 15 to 25 kts backing W 10 to 15 kts in the late morning and afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-180400- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 645 PM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CDT SATURDAY... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .TONIGHT...S wind 15 to 25 kts veering W after midnight. Gusts to 35 kts. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Patchy dense fog. a chance of thunderstorms in the evening. Rain showers. .SATURDAY...W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy in the morning then clearing. .SATURDAY NIGHT...W wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear. A Small Craft Advisory may be needed. .SUNDAY...NW wind 10 to 15 kts veering N early in the afternoon. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Monday through Wednesday. Wave height forecast is for ice free areas.