


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
646 FZUS53 KMQT 100902 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 AM EDT Fri Oct 10 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. LMZ221-102000- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .EARLY THIS MORNING...Southwest wind 20 to 25 knots. Cloudy with a chance of showers. Waves 3 to 5 feet occasionally to 7 feet. .TODAY...Southwest wind 20 to 25 knots veering northwest 15 to 20 knots late. Cloudy through early afternoon then becoming partly cloudy. Showers likely through mid morning, then a chance of showers by late morning. A slight chance of showers late. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. .TONIGHT...Northwest wind 15 to 20 knots veering north by midnight. Mostly cloudy. A slight chance of showers through midnight. Waves subsiding to 2 to 3 feet. .SATURDAY...Northeast wind 10 to 15 knots veering east less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Mostly clear. Waves calm to 1 foot. $$ LMZ248-250-102000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .EARLY THIS MORNING...Southwest wind 20 to 25 knots. Mostly cloudy with a slight chance of showers. Waves 3 to 6 feet occasionally to 8 feet. .TODAY...Southwest wind 20 to 25 knots veering northwest 15 to 20 knots late. Showers likely through mid morning, then a chance of showers by late morning. A slight chance of showers late. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .TONIGHT...Northwest wind 15 to 20 knots veering north by midnight. Cloudy. A slight chance of showers through midnight. Waves subsiding to 2 to 3 feet. .SATURDAY...Northeast wind 10 to 15 knots veering east less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Mostly clear. Waves calm to 1 foot. $$ LSZ240-241-102000- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 502 AM EDT Fri Oct 10 2025 /402 AM CDT Fri Oct 10 2025/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 27 knots. Cloudy with a slight chance of showers. Waves 2 to 3 feet. .TODAY...West wind 15 to 25 knots veering northwest by late morning. Partly cloudy. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .TONIGHT...Northwest wind 15 to 20 knots veering northeast 10 to 15 knots late. Mostly clear. Waves subsiding to 2 to 3 feet. .SATURDAY...East wind less than 10 knots. Sunny. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ242-243-102000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 32 knots. Cloudy with a chance of showers. Waves 2 to 4 feet. .TODAY...West wind 20 to 25 knots veering northwest by late morning. Gale force gusts up to 38 knots. Mostly cloudy. A chance of showers through mid morning, then a slight chance of showers by late morning. Waves building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...North wind 20 to 25 knots diminishing to 15 to 20 knots by midnight, then veering northeast 10 to 15 knots late. Gusts up to 33 knots. Mostly cloudy through late evening then becoming partly cloudy. Waves subsiding to 2 to 4 feet. .SATURDAY...East wind less than 10 knots with gusts up to 18 knots. Mostly sunny. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south after midnight. Gusts up to 22 knots. Mostly clear. Waves calm to 1 foot. $$ LSZ245-102000- Manitou Island to Point Isabelle MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 29 knots. Showers likely. Waves 2 to 4 feet. .TODAY...Southwest wind 15 to 20 knots veering northwest 20 to 25 knots late. Gale force gusts up to 37 knots. Showers likely through mid morning, then a chance of showers by late morning. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .TONIGHT...North wind 15 to 25 knots veering northeast 10 to 20 knots late. Gusts up to 33 knots. Mostly cloudy. Waves subsiding to 2 to 4 feet. .SATURDAY...East wind less than 10 knots veering southeast in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 20 knots veering south 15 to 20 knots after midnight. Partly cloudy. Waves building to 2 to 4 feet. $$ LSZ244-102000- Eagle River to Manitou Island MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 29 knots. Showers likely. Waves 2 to 4 feet. .TODAY...West wind 15 to 25 knots veering northwest 20 to 25 knots late. Gale force gusts up to 40 knots. Cloudy with a chance of showers. Waves building to 6 to 9 feet occasionally to 11 feet. .TONIGHT...North wind 15 to 25 knots veering northeast 10 to 20 knots late. Gusts up to 33 knots. Mostly cloudy. Waves subsiding to 2 to 4 feet. .SATURDAY...East wind less than 10 knots veering southeast in the afternoon. Gusts up to 17 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south 15 to 20 knots after midnight. Partly cloudy. Waves building to 2 to 3 feet. $$ LSZ246-102000- Point Isabelle to Lower Entrance of Portage Canal MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 32 knots. Cloudy with a chance of showers. Waves 2 to 4 feet. .TODAY...Southwest wind 15 to 20 knots veering northwest late. Gale force gusts up to 36 knots. Cloudy with a chance of showers. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .TONIGHT...North wind 10 to 20 knots with gusts up to 33 knots becoming 10 to 15 knots with gusts up to 23 knots late. Mostly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY...East wind less than 10 knots. Gusts up to 19 knots. Partly cloudy. Waves 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south after midnight. Gusts up to 22 knots. Mostly clear. Waves building to 2 to 3 feet. $$ LSZ247-102000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 32 knots. Showers likely. Waves 2 to 3 feet. .TODAY...Southwest wind 15 to 20 knots veering northwest late. Gale force gusts up to 36 knots. Cloudy. A chance of showers through mid morning, then a slight chance of showers by late morning. A chance of showers late. Waves building to 2 to 4 feet. .TONIGHT...North wind 15 to 20 knots diminishing to 10 to 15 knots late. Gusts up to 33 knots. Mostly cloudy. A slight chance of showers through late evening. Waves subsiding to 2 to 3 feet. .SATURDAY...East wind less than 10 knots with gusts up to 20 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south less than 10 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ248-102000- Huron Islands to Marquette MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 30 knots. Showers likely. Waves 2 to 3 feet. .TODAY...Southwest wind 15 to 20 knots veering northwest 20 to 25 knots late. Gale force gusts up to 36 knots. Cloudy with a chance of showers. Waves building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...North wind 15 to 25 knots diminishing to 10 to 20 knots late. Gusts up to 33 knots. Cloudy. A slight chance of showers through midnight. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Northeast wind less than 10 knots veering east in the afternoon. Gusts up to 19 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 10 to 15 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ249-102000- Marquette to Munising MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up to 28 knots. Cloudy with a chance of showers. Waves 2 to 4 feet. .TODAY...Southwest wind 15 to 25 knots veering northwest 20 to 25 knots late. Gale force gusts up to 36 knots. Showers through mid morning, then a chance of showers by late morning. Waves building to 6 to 9 feet occasionally to 11 feet. .TONIGHT...Northwest wind 20 to 25 knots veering north 15 to 25 knots by midnight. Gusts up to 32 knots. Cloudy. A chance of showers through late evening, then a slight chance of showers by midnight. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ250-102000- Munising to Grand Marais MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... ...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 15 to 20 knots with gusts up to 28 knots. Cloudy with a chance of showers. Waves 2 to 3 feet building to 2 to 4 feet. .TODAY...South wind 20 to 25 knots veering northwest late. Gale force gusts up to 36 knots. Showers. Waves building to 6 to 9 feet occasionally to 11 feet. .TONIGHT...North wind 20 to 25 knots becoming 15 to 25 knots by midnight. Cloudy. A chance of showers through late evening, then a slight chance of showers by midnight. Waves building to 7 to 10 feet occasionally to 13 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ251-102000- Grand Marais to Whitefish Point MI- 502 AM EDT Fri Oct 10 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 15 to 20 knots. Mostly cloudy with a slight chance of showers. Waves 2 to 3 feet building to 2 to 4 feet. .TODAY...South wind 15 to 20 knots veering west late. Gusts up to 32 knots. Showers. Waves building to 5 to 8 feet occasionally to 10 feet. .TONIGHT...North wind 15 to 20 knots. Gusts up to 28 knots. Mostly cloudy. A chance of showers through late evening, then a slight chance of showers by midnight. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...Northeast wind 5 to 15 knots. Mostly sunny. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear. Waves 1 to 2 feet. $$ WFO MQT