Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
908 FZUS53 KMQT 170902 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 501 AM EDT Fri Oct 17 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. LMZ221-172000- Green Bay North of line from Cedar River MI to Rock Island Passage- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .EARLY THIS MORNING...South wind 15 to 20 knots. Cloudy with a chance of showers. Waves 2 to 3 feet. .TODAY...South wind 15 to 25 knots with gusts up to 32 knots. Mostly cloudy. A slight chance of showers through mid morning. A slight chance of showers late. Waves building to 3 to 6 feet occasionally to 8 feet. .TONIGHT...South wind 15 to 25 knots veering southwest 10 to 15 knots late. Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Waves subsiding to 2 to 3 feet. .SATURDAY...Southwest wind 10 to 15 knots backing south less than 10 knots in the afternoon. Partly cloudy. A slight chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet. .SATURDAY NIGHT...West wind less than 10 knots veering north 10 to 15 knots after midnight. Cloudy. A chance of showers in the evening, then showers likely and a slight chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LMZ248-250-172000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING... .EARLY THIS MORNING...South wind 15 to 20 knots. Cloudy with a chance of showers. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet. .TODAY...South wind 20 to 25 knots with gale force gusts up to 34 knots. Cloudy. A slight chance of showers through mid morning. Waves building to 6 to 9 feet occasionally to 11 feet. .TONIGHT...Southwest wind 15 to 25 knots with gale force gusts up to 34 knots. Showers likely and a slight chance of thunderstorms. Waves subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Southwest wind 5 to 15 knots. Partly cloudy. A chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Waves subsiding to 2 to 3 feet. .SATURDAY NIGHT...South wind less than 10 knots veering north 10 to 15 knots after midnight. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers likely and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. $$ LSZ240-172000- Saxon Harbor WI to Black River MI- 501 AM EDT Fri Oct 17 2025 /401 AM CDT Fri Oct 17 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 calm to 1 foot building to 1 to 2 feet. .TODAY...South wind 10 to 20 knots veering southwest 10 to 15 knots late. Partly cloudy. A slight chance of showers through mid morning, then a chance of showers by late morning. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots. Mostly clear. A slight chance of showers through late evening. Waves 1 to 2 feet. .SATURDAY...Southwest wind less than 10 knots veering northwest in the afternoon. Mostly sunny in the morning then becoming mostly cloudy. Waves calm to 1 foot. .SATURDAY NIGHT...Northwest wind 10 to 15 knots. Cloudy with a chance of showers. Waves building to 2 to 3 feet. $$ LSZ241-172000- Black River to Ontonagon MI- 501 AM EDT Fri Oct 17 2025 /401 AM CDT Fri Oct 17 2025/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 10 to 15 knots with gusts up to 23 knots. Mostly cloudy with a slight chance of showers. Waves 1 to 2 feet. .TODAY...South wind 10 to 15 knots veering southwest late. Gusts up to 24 knots. Partly cloudy. A slight chance of showers through early afternoon, then a chance of showers late. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots. Mostly clear. A slight chance of showers through late evening. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SATURDAY...Southwest wind 10 to 15 knots veering west in the afternoon. Partly cloudy. Waves 1 to 2 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Cloudy with a chance of showers. Waves building to 2 to 4 feet. $$ LSZ242-243-172000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 10 to 15 knots. Cloudy with a slight chance of showers. Waves calm to 1 foot. .TODAY...South wind 10 to 15 knots veering southwest late. Gusts up to 24 knots. Partly cloudy. A slight chance of showers through early afternoon, then a chance of showers late. Waves building to 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots. Mostly clear. A slight chance of showers through late evening. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .SATURDAY...Southwest wind 10 to 15 knots veering west in the afternoon. Gusts up to 24 knots. Mostly sunny. Waves 2 to 3 feet. .SATURDAY NIGHT...Northwest wind 10 to 15 knots increasing to 15 to 20 knots after midnight. Gusts up to 27 knots. Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Waves subsiding to 1 to 2 feet, then building to 3 to 5 feet occasionally to 7 feet. $$ LSZ244-245-172000- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 501 AM EDT Fri Oct 17 2025 .EARLY THIS MORNING...South wind 10 to 15 knots. Cloudy with a chance of showers. Waves 2 to 3 feet. .TODAY...South wind 10 to 15 knots with gusts up to 22 knots. Mostly cloudy. A chance of showers through mid morning, then a slight chance of showers by late morning. A chance of showers late. Waves building to 2 to 4 feet. .TONIGHT...Southwest wind 15 to 20 knots diminishing to 10 to 15 knots by midnight. Partly cloudy. A chance of showers and a slight chance of thunderstorms through late evening, then a slight chance of showers by midnight. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. .SATURDAY...West wind 10 to 15 knots. Gusts up to 23 knots. Mostly sunny. Waves 2 to 3 feet. .SATURDAY NIGHT...Northwest wind 10 to 15 knots increasing to 15 to 20 knots after midnight. Gusts up to 28 knots. Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet. $$ LSZ246-172000- Point Isabelle to Lower Entrance of Portage Canal MI- 501 AM EDT Fri Oct 17 2025 .EARLY THIS MORNING...South wind less than 10 knots with gusts up to 18 knots. Cloudy with a chance of showers. Waves 1 to 2 feet. .TODAY...South wind 5 to 15 knots with gusts up to 24 knots. Mostly cloudy. A slight chance of showers through early afternoon, then a chance of showers late. Waves building to 2 to 3 feet. .TONIGHT...Southwest wind 10 to 15 knots becoming 5 to 15 knots by midnight. Gusts up to 22 knots. Partly cloudy. A chance of showers through late evening, then a slight chance of showers by midnight. Waves subsiding to 1 to 2 feet. .SATURDAY...West wind less than 10 knots. Gusts up to 21 knots. Mostly sunny. Waves calm to 1 foot. .SATURDAY NIGHT...Northwest wind less than 10 knots increasing to 10 to 15 knots after midnight. Gusts up to 26 knots. Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Waves calm to 1 foot. $$ LSZ247-172000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind less than 10 knots with gusts up to 20 knots. Cloudy with a chance of showers. Waves calm to 1 foot. .TODAY...South wind 10 to 15 knots with gusts up to 24 knots. Partly cloudy. A slight chance of showers through early afternoon, then a chance of showers late. Waves calm to 1 foot. .TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 23 knots. Partly cloudy. A chance of showers and a slight chance of thunderstorms through late evening, then a slight chance of showers by midnight. Waves building to 1 to 2 feet. .SATURDAY...Southwest wind less than 10 knots veering northwest in the afternoon. Gusts up to 20 knots. Mostly sunny. Waves calm to 1 foot. .SATURDAY NIGHT...Northwest wind 5 to 15 knots with gusts up to 26 knots. Cloudy with a chance of showers. Waves building to 1 to 2 feet. $$ LSZ248-172000- Huron Islands to Marquette MI- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .EARLY THIS MORNING...South wind 10 to 15 knots with gusts up to 24 knots. Cloudy with a chance of showers. Waves 1 to 2 feet. .TODAY...South wind 10 to 15 knots with gusts up to 25 knots. Mostly cloudy. A slight chance of showers through early afternoon, then a chance of showers late. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots veering southwest 5 to 15 knots by midnight. Gusts up to 22 knots. Partly cloudy. A chance of showers and a slight chance of thunderstorms through late evening, then a slight chance of showers and thunderstorms by midnight. Waves 1 to 2 feet. .SATURDAY...West wind less than 10 knots veering northwest in the afternoon. Gusts up to 18 knots. Sunny in the morning then becoming partly cloudy. Waves calm to 1 foot. .SATURDAY NIGHT...Northwest wind 5 to 15 knots with gusts up to 26 knots. Cloudy with a chance of showers. Waves building to 2 to 3 feet. $$ LSZ249-172000- Marquette to Munising MI- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 10 to 15 knots with gusts up to 25 knots. Showers likely. Waves 1 to 2 feet. .TODAY...South wind 15 to 20 knots with gusts up to 27 knots. Mostly cloudy. A chance of showers through mid morning. A chance of showers late. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .TONIGHT...South wind 10 to 20 knots veering southwest less than 10 knots late. Mostly cloudy through late evening then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers through the night. A slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .SATURDAY...Southwest wind less than 10 knots veering north in the afternoon. Mostly sunny with a slight chance of showers. Waves calm to 1 foot. .SATURDAY NIGHT...North wind less than 10 knots increasing to 10 to 20 knots after midnight. Cloudy. A chance of showers in the evening, then showers likely after midnight. Waves building to 2 to 4 feet. $$ LSZ250-172000- Munising to Grand Marais MI- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 10 to 15 knots with gusts up to 24 knots. Showers likely. Waves 1 to 2 feet. .TODAY...South wind 15 to 20 knots with gusts up to 28 knots. Mostly cloudy. A chance of showers through mid morning. A chance of showers late. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots veering southwest 10 to 15 knots late. Gusts up to 28 knots. Mostly cloudy with showers likely and a slight chance of thunderstorms through midnight, then partly cloudy with a chance of showers and a slight chance of thunderstorms late. Waves subsiding to 1 to 2 feet. .SATURDAY...Southwest wind less than 10 knots veering north in the afternoon. Mostly sunny with a slight chance of showers. Waves calm to 1 foot. .SATURDAY NIGHT...Northeast wind less than 10 knots backing north 10 to 20 knots after midnight. Cloudy. A chance of showers in the evening, then showers likely and a slight chance of thunderstorms after midnight. Waves building to 2 to 4 feet. $$ LSZ251-172000- Grand Marais to Whitefish Point MI- 501 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .EARLY THIS MORNING...South wind 15 to 20 knots. Showers. Waves 2 to 3 feet. .TODAY...South wind 15 to 20 knots with gusts up to 27 knots. Cloudy. Showers likely through mid morning, then a slight chance of showers by late morning. Waves building to 2 to 4 feet. .TONIGHT...South wind 15 to 20 knots diminishing to 10 to 15 knots late. Gusts up to 27 knots. Showers likely and a slight chance of thunderstorms through midnight, then a chance of showers and a slight chance of thunderstorms late. Waves subsiding to 1 to 2 feet. .SATURDAY...Southwest wind 10 to 15 knots diminishing to less than 10 knots in the afternoon. Partly cloudy with a chance of showers. Waves 1 to 2 feet. .SATURDAY NIGHT...East wind less than 10 knots backing north 10 to 20 knots after midnight. Showers likely in the evening, then showers likely and a slight chance of thunderstorms after midnight. Waves building to 2 to 3 feet. $$ WFO MQT