582 FZUS53 KMQT 230902 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 AM EDT Sun Aug 23 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LMZ221-232000- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...Northwest wind 15 to 20 knots. Clear. Waves 2 to 3 feet. .TODAY...North wind 15 to 20 knots. Partly cloudy. Waves building to 2 to 4 feet. .TONIGHT...Northwest wind 10 to 20 knots. Clear. Waves subsiding to 2 to 3 feet. .MONDAY...Northwest wind 10 to 15 knots veering north in the afternoon. Sunny. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...North wind 5 to 15 knots in the evening becoming variable. Partly cloudy. Waves calm to 1 foot. $$ LMZ248-250-232000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...Northwest wind 15 to 20 knots. Mostly clear. Waves 2 to 3 feet. .TODAY...Northwest wind 15 to 20 knots with gusts up to 29 knots. Partly cloudy. Isolated showers through mid morning. Waves building to 2 to 4 feet. .TONIGHT...Northwest wind 15 to 20 knots. Clear. Waves subsiding to 2 to 3 feet. .MONDAY...Northwest wind 10 to 20 knots. Sunny. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...North wind 5 to 15 knots in the evening becoming variable. Mostly clear. Waves 1 to 2 feet. $$ LSZ240-241-232000- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 502 AM EDT Sun Aug 23 2026 /402 AM CDT Sun Aug 23 2026/ .EARLY THIS MORNING...North wind 10 to 15 knots. Clear. Waves 2 to 3 feet. .TODAY...North wind 5 to 15 knots backing northwest less than 10 knots late. Sunny. Waves subsiding to 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots becoming west less than 10 knots late. Clear. Waves calm to 1 foot. .MONDAY...Northwest wind less than 10 knots in the morning becoming variable. Mostly sunny. Waves calm to 1 foot. .MONDAY NIGHT...Variable wind less than 10 knots becoming south less than 10 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves calm to 1 foot. $$ LSZ243-232000- Upper Entrance of Portage Canal to Eagle River MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .EARLY THIS MORNING...North wind 15 to 20 knots. Clear. Waves 2 to 4 feet. .TODAY...North wind 10 to 20 knots backing northwest 10 to 15 knots late. Mostly sunny. Waves subsiding to 1 to 2 feet. .TONIGHT...West wind 10 to 15 knots veering northwest late. Clear. Waves 1 to 2 feet. .MONDAY...North wind 5 to 15 knots backing west less than 10 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .MONDAY NIGHT...Southwest wind less than 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves calm to 1 foot. $$ LSZ242-232000- Ontonagon to Upper Entrance of Portage Canal MI- 502 AM EDT Sun Aug 23 2026 .EARLY THIS MORNING...North wind 15 to 20 knots. Clear. Waves 2 to 3 feet. .TODAY...North wind 10 to 20 knots backing northwest less than 10 knots late. Sunny. Waves building to 2 to 4 feet, then subsiding to 1 to 2 feet. .TONIGHT...West wind less than 10 knots veering northwest 10 to 15 knots late. Clear. Waves 1 to 2 feet. .MONDAY...North wind 5 to 15 knots backing northwest less than 10 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .MONDAY NIGHT...Variable wind less than 10 knots becoming south less than 10 knots after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves calm to 1 foot. $$ LSZ244-245-232000- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .EARLY THIS MORNING...North wind 15 to 20 knots. Mostly clear. Waves 2 to 4 feet. .TODAY...North wind 15 to 20 knots backing northwest 10 to 15 knots late. Gusts up to 27 knots. Mostly sunny. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 3 feet. .TONIGHT...Northwest wind 10 to 20 knots veering north 10 to 15 knots late. Clear. Waves 2 to 3 feet. .MONDAY...North wind 10 to 15 knots backing northwest in the afternoon. Sunny. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...West wind less than 10 knots in the evening becoming variable. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet. $$ LSZ246-232000- Point Isabelle to Lower Entrance of Portage Canal MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .EARLY THIS MORNING...North wind 10 to 15 knots with gusts up to 23 knots. Clear. Waves 1 to 2 feet. .TODAY...North wind 10 to 15 knots with gusts up to 26 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northwest wind 5 to 15 knots. Clear. Waves calm to 1 foot. .MONDAY...Northwest wind less than 10 knots. Sunny. Waves calm to 1 foot. .MONDAY NIGHT...Variable wind less than 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves calm to 1 foot. $$ LSZ247-232000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON... .EARLY THIS MORNING...North wind 15 to 20 knots. Mostly clear. Waves 2 to 3 feet. .TODAY...North wind 10 to 20 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots. Clear. Waves 1 to 2 feet. .MONDAY...Northwest wind 5 to 15 knots. Sunny. Waves 1 to 2 feet. .MONDAY NIGHT...Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. $$ LSZ248-232000- Huron Islands to Marquette MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .EARLY THIS MORNING...North wind 15 to 20 knots. Partly cloudy with isolated showers. Waves 3 to 5 feet occasionally to 7 feet. .TODAY...North wind 15 to 25 knots with gusts up to 32 knots. Partly cloudy with isolated showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. .TONIGHT...Northwest wind 15 to 20 knots. Clear. Waves subsiding to 2 to 4 feet. .MONDAY...Northwest wind 15 to 20 knots diminishing to 5 to 15 knots in the afternoon. Sunny. Waves subsiding to 2 to 3 feet. .MONDAY NIGHT...West wind less than 10 knots in the evening becoming variable. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ249-232000- Marquette to Munising MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .EARLY THIS MORNING...North wind 20 to 25 knots. Mostly cloudy with isolated showers. Waves 3 to 5 feet occasionally to 7 feet building to 3 to 6 feet occasionally to 8 feet. .TODAY...North wind 20 to 25 knots with gusts up to 33 knots. Mostly cloudy with isolated showers. Waves building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...Northwest wind 20 to 25 knots. Clear. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then building to 4 to 7 feet occasionally to 9 feet. .MONDAY...Northwest wind 10 to 20 knots. Sunny. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest wind 5 to 15 knots backing west less than 10 knots after midnight. Partly cloudy. Waves subsiding to 1to 2 feet. $$ LSZ250-232000- Munising to Grand Marais MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .EARLY THIS MORNING...North wind 20 to 25 knots. Partly cloudy with isolated showers. Waves 3 to 5 feet occasionally to 7 feet building to 3 to 6 feet occasionally to 8 feet. .TODAY...Northwest wind 20 to 25 knots with gale force gusts up to 34 knots. Mostly cloudy with isolated showers. Waves building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...Northwest wind 20 to 25 knots veering north late. Clear. Waves subsiding to 3 to 6 feet occasionally to 8 feet, then building to 4 to 7 feet occasionally to 9 feet. .MONDAY...North wind 20 to 25 knots backing northwest 10 to 20 knots in the afternoon. Sunny. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest wind 5 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ251-232000- Grand Marais to Whitefish Point MI- 502 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING... .EARLY THIS MORNING...North wind 20 to 25 knots. Partly cloudy with isolated showers. Waves 3 to 5 feet occasionally to 7 feet building to 3 to 6 feet occasionally to 8 feet. .TODAY...Northwest wind 20 to 25 knots with gusts up to 32 knots. Mostly cloudy with isolated showers. Waves building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...Northwest wind 20 to 25 knots veering north late. Partly cloudy. A slight chance of showers by midnight. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...Northwest wind 20 to 25 knots diminishing to 15 to 20 knots in the afternoon. Mostly sunny. Waves subsiding to 2 to 4 feet. .MONDAY NIGHT...Northwest wind 5 to 15 knots. Mostly clear. Waves subsiding to 1 to 2 feet. $$ WFO MQT  191 FZUS53 KGRB 230933 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 433 AM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ522-231600- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 433 AM CDT Sun Aug 23 2026 .EARLY THIS MORNING...NW wind 10 to 15 kts. Waves 1 to 3 ft. Clear. .TODAY...N wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny in the morning then becoming partly cloudy. .TONIGHT...N wind 10 to 15 kts backing NW 5 to 10 kts after midnight. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 5 to 10 kts. Waves 2 ft or less. Sunny in the morning then becoming partly cloudy. .MONDAY NIGHT...SE wind around 5 kts veering SW after midnight. Waves 2 ft or less. Partly cloudy. $$ LMZ521-231600- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- 433 AM CDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .EARLY THIS MORNING...NW wind 10 to 20 kts. Waves 2 to 4 ft. Clear. .TODAY...NW wind 15 to 25 kts veering N 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. Mostly sunny in the morning then becoming partly cloudy. .TONIGHT...NW wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly sunny. .MONDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ542-543-231600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 433 AM CDT Sun Aug 23 2026 .EARLY THIS MORNING...NW wind 10 to 15 kts. Waves 2 ft or less. Clear. .TODAY...NW wind 10 to 20 kts. Waves 1 to 3 ft. Sunny in the morning then becoming partly cloudy. .TONIGHT...N wind 10 to 15 kts backing NW after midnight. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...S wind 5 to 10 kts veering SW after midnight. Waves 2 ft or less. Partly cloudy. $$ LMZ541-231600- Rock Island Passage to Sturgeon Bay WI- 433 AM CDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... .EARLY THIS MORNING...NW wind 15 to 25 kts. Waves 1 to 3 ft. Clear. .TODAY...N wind 15 to 25 kts. Waves 2 to 4 ft. A chance of sprinkles in the afternoon. .TONIGHT...NW wind 10 to 15 kts. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...NE wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday.  386 FZUS53 KGRR 230938 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 538 AM EDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-232000- Pentwater to Manistee MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 20 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the afternoon. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing south after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...South winds 5 to 10 knots veering southwest 10 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .WEDNESDAY...South winds to 30 knots. Partly sunny with a chance of showers and thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ848-232000- Whitehall to Pentwater MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 20 to 25 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing southwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ847-232000- Grand Haven to Whitehall MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots decreasing to 5 to 10 knots in the late evening and early morning, then backing west after midnight. Partly cloudy. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. $$ LMZ846-232000- Holland to Grand Haven MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds to 30 knots. Mostly sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west around 5 knots. Partly cloudy. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .WEDNESDAY...Southwest winds 20 to 25 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. $$ LMZ845-232000- South Haven to Holland MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 15 to 25 knots. Mostly sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 10 to 20 knots. Partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or less. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. $$ LMZ844-232000- St Joseph to South Haven MI- 538 AM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Northwest winds 10 to 20 knots increasing to 20 to 25 knots in the late morning and afternoon. Sunny. A slight chance of rain showers in the morning. A slight chance of waterspouts in the morning. Waves 5 to 7 feet. .TONIGHT...North winds 10 to 20 knots veering northeast 5 to 10 knots after midnight. Partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. .MONDAY...North winds 5 to 15 knots backing northwest in the late morning and afternoon. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 10 knots veering west early in the afternoon. Sunny. Waves 1 foot or less. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny. Waves 1 to 3 feet. .THURSDAY...Northwest winds 10 to 15 knots. Sunny. Waves 2 to 4 feet. $$