


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
496 FZUS53 KMQT 042102 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 PM EDT Sat Oct 4 2025 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. LMZ221-050800- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to 28 knots. Sunny. Waves 2 to 3 feet building to 2 to 4 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 29 knots. Clear. Waves subsiding to 2 to 3 feet. .SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots. Sunny. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...South wind 15 to 25 knots veering southwest 10 to 20 knots after midnight. Gusts up to 33 knots. Mostly clear with a chance of showers in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 2 to 3 feet. .MONDAY...Northwest wind less than 10 knots veering north in the afternoon. Cloudy. A chance of showers in the morning, then a slight chance of showers in the afternoon. Waves subsiding to 1 to 2 feet. $$ LMZ248-250-050800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to 27 knots. Sunny. Waves 2 to 4 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots. Clear. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...South wind 15 to 25 knots with gale force gusts up to 34 knots. Sunny. Waves building to 5 to 8 feet occasionally to 10 feet. .SUNDAY NIGHT...South wind 20 to 25 knots veering southwest 10 to 20 knots after midnight. Gusts up to 33 knots. Mostly clear with a chance of showers in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .MONDAY...Northwest wind 5 to 15 knots veering north less than 10 knots in the afternoon. Cloudy. A chance of showers in the morning, then a slight chance of showers in the afternoon. Waves subsiding to 2 to 3 feet. $$ LSZ240-241-050800- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 502 PM EDT Sat Oct 4 2025 /402 PM CDT Sat Oct 4 2025/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to 28 knots. Mostly sunny. Waves 2 to 3 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 32 knots. Mostly clear. Waves building to 2 to 4 feet. .SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots. Sunny through early afternoon then becoming partly cloudy. A slight chance of showers by late morning. A chance of showers late. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Southwest wind 20 to 25 knots veering west 15 to 20 knots after midnight. Partly cloudy. A slight chance of showers in the evening. Waves 3 to 5 feet occasionally to 7 feet. .MONDAY...Northwest wind 10 to 15 knots backing west less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ242-243-050800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 26 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots. Mostly clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...South wind 15 to 25 knots with gale force gusts up to 37 knots. Sunny through early afternoon then becoming partly cloudy. A chance of showers late. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Southwest wind 20 to 25 knots veering west after midnight. Gale force gusts up to 36 knots. Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...Northwest wind 15 to 20 knots backing west 10 to 15 knots in the afternoon. Partly cloudy. Waves subsiding to 2 to 3 feet. $$ LSZ245-050800- Manitou Island to Point Isabelle MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 22 knots. Mostly sunny. Waves 2 to 3 feet. .TONIGHT...South wind 10 to 20 knots. Partly cloudy. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .SUNDAY...South wind 15 to 20 knots with gusts up to 31 knots. Sunny. A slight chance of showers late. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west after midnight. Gusts up to 31 knots. Partly cloudy. A chance of showers in the evening. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. .MONDAY...Northwest wind 5 to 15 knots with gusts up to 24 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ244-050800- Eagle River to Manitou Island MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 23 knots. Mostly sunny. Waves 2 to 3 feet. .TONIGHT...South wind 10 to 20 knots. Partly cloudy. Waves 2 to 3 feet. .SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots. Mostly sunny. A slight chance of showers late. Waves building to 2 to 4 feet. .SUNDAY NIGHT...Southwest wind 15 to 25 knots veering west 20 to 25 knots after midnight. Gusts up to 33 knots. Partly cloudy. A chance of showers in the evening. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .MONDAY...Northwest wind 15 to 20 knots backing west 10 to 15 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ246-050800- Point Isabelle to Lower Entrance of Portage Canal MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 27 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots with gusts up to 29 knots. Partly cloudy. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...South wind 10 to 20 knots with gale force gusts up to 34 knots. Sunny. A slight chance of showers late. Waves building to 2 to 4 feet. .SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to 20 knots after midnight. Gale force gusts up to 35 knots. Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Northwest wind 5 to 15 knots with gusts up to 24 knots. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ247-050800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...Southwest wind 10 to 15 knots with gusts up to 27 knots. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots with gusts up to 29 knots. Mostly clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...South wind 15 to 20 knots with gale force gusts up to 34 knots. Sunny. A slight chance of showers late. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to 20 knots after midnight. Gale force gusts up to 35 knots. Partly cloudy with a chance of showers and a slight chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Northwest wind 5 to 15 knots with gusts up to 23 knots. Mostly cloudy. Waves 1 to 2 feet. $$ LSZ248-050800- Huron Islands to Marquette MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 23 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 31 knots. Mostly clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...South wind 10 to 20 knots with gusts up to 32 knots. Sunny. A slight chance of showers late. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to 15 knots after midnight. Gusts up to 31 knots. Partly cloudy with a chance of showers and a slight chance of thunderstorms in the evening, then mostly cloudy with a chance of showers after midnight. Waves 2 to 3 feet. .MONDAY...Northwest wind 5 to 15 knots with gusts up to 23 knots. Mostly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ249-050800- Marquette to Munising MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 23 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots. Mostly clear. Waves 1 to 2 feet. .SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots. Sunny. A slight chance of showers late. Waves building to 2 to 4 feet. .SUNDAY NIGHT...South wind 15 to 25 knots veering west 10 to 20 knots after midnight. Gusts up to 32 knots. Partly cloudy with a chance of showers and a slight chance of thunderstorms in the evening, then showers likely and a slight chance of thunderstorms after midnight. Waves subsiding to 2 to 3 feet. .MONDAY...Northwest wind 5 to 15 knots. Mostly cloudy. A slight chance of showers in the morning. Waves subsiding to 1 to 2 feet. $$ LSZ250-050800- Munising to Grand Marais MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON... ...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY NIGHT... .LATE THIS AFTERNOON...South wind 15 to 20 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots. Mostly clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...South wind 15 to 25 knots with gale force gusts up to 35 knots. Sunny. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...South wind 20 to 25 knots veering west 15 to 25 knots after midnight. Gale force gusts up to 34 knots. Showers likely and a slight chance of thunderstorms. Waves subsiding to 2 to 4 feet. .MONDAY...Northwest wind 15 to 20 knots diminishing to 5 to 15 knots in the afternoon. Mostly cloudy. A chance of showers in the morning. Waves 2 to 4 feet. $$ LSZ251-050800- Grand Marais to Whitefish Point MI- 502 PM EDT Sat Oct 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to 24 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots with gusts up to 25 knots. Mostly clear. Waves 1 to 2 feet. .SUNDAY...South wind 15 to 25 knots with gale force gusts up to 34 knots. Sunny. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...South wind 20 to 25 knots veering southwest 15 to 25 knots after midnight. Gusts up to 33 knots. Showers and a slight chance of thunderstorms. Waves subsiding to 2 to 4 feet. .MONDAY...Northwest wind 10 to 20 knots. Mostly cloudy. A chance of showers in the morning, then a slight chance of showers in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. $$ WFO MQT