Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
731 FZUS53 KMQT 092102 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 PM EDT Thu Oct 9 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. LMZ221-100800- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 25 knots. Partly cloudy through midnight, then mostly cloudy with a chance of showers late. Waves building to 3 to 5 feet occasionally to 7 feet. .FRIDAY...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. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. .FRIDAY NIGHT...Northwest wind 15 to 20 knots veering north after midnight. Mostly cloudy. A chance of showers in the evening. 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. $$ LMZ248-250-100800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...Southwest wind 15 to 25 knots. Partly cloudy through midnight, then mostly cloudy with a chance of showers late. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY...Southwest wind 20 to 25 knots veering northwest 15 to 20 knots late. Showers likely through early afternoon, then a chance of showers late. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...Northwest wind 15 to 20 knots veering north after midnight. Mostly cloudy. A chance of showers in the evening. Waves subsiding to 2 to 3 feet. .SATURDAY...Northeast wind 10 to 15 knots veering east less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ240-241-100800- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 502 PM EDT Thu Oct 9 2025 /402 PM CDT Thu Oct 9 2025/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT /9 PM CDT/ THIS EVENING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves calm to 1 foot. .TONIGHT...South wind 10 to 20 knots veering southwest 15 to 20 knots late. Gusts up to 31 knots. Mostly cloudy. A slight chance of showers through late evening, then a chance of showers by midnight. Waves building to 2 to 4 feet. .FRIDAY...West wind 15 to 25 knots veering northwest by late morning. Mostly cloudy then becoming mostly sunny by late morning then becoming 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 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...North wind 10 to 20 knots veering northeast 10 to 15 knots after midnight. Partly cloudy. A slight chance of showers in the evening. Waves subsiding to 2 to 4 feet. .SATURDAY...East wind less than 10 knots. Mostly sunny. Waves subsiding to 1 to 2 feet. $$ LSZ242-243-100800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves calm to 1 foot. .TONIGHT...South wind 10 to 20 knots veering southwest 15 to 20 knots late. Gusts up to 32 knots. Mostly clear through late evening then becoming cloudy. Showers likely by midnight. Waves building to 2 to 4 feet. .FRIDAY...West wind 20 to 25 knots veering northwest late. Gale force gusts up to 39 knots. Mostly cloudy with a chance of showers. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...North wind 20 to 25 knots with gale force gusts up to 35 knots veering northeast 10 to 20 knots after midnight. Mostly cloudy. A slight chance of showers in the evening. Waves subsiding to 2 to 4 feet. .SATURDAY...East wind less than 10 knots with gusts up to 17 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ245-100800- Manitou Island to Point Isabelle MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 2 to 3 feet. .TONIGHT...South wind 15 to 20 knots veering southwest late. Gusts up to 29 knots. Mostly clear through late evening, then mostly cloudy with a chance of showers by midnight. Cloudy with showers late. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .FRIDAY...Southwest wind 15 to 20 knots veering northwest 15 to 25 knots late. Gale force gusts up to 36 knots. Showers and a slight chance of thunderstorms through early afternoon, then showers likely late. Waves subsiding to 2 to 4 feet, then building to 3 to 6 feet occasionally to 8 feet. .FRIDAY NIGHT...North wind 15 to 25 knots with gale force gusts up to 34 knots. Mostly cloudy. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .SATURDAY...Northeast wind less than 10 knots veering east in the afternoon. Gusts up to 17 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ244-100800- Eagle River to Manitou Island MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...South wind 10 to 20 knots veering southwest 15 to 20 knots late. Gusts up to 29 knots. Mostly clear through late evening, then mostly cloudy with a chance of showers by midnight. Cloudy with showers late. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .FRIDAY...Southwest wind 15 to 25 knots veering northwest 20 to 25 knots late. Gale force gusts up to 39 knots. Showers likely and a slight chance of thunderstorms through early afternoon, then a chance of showers late. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY NIGHT...North wind 20 to 25 knots veering northeast 15 to 20 knots after midnight. Gale force gusts up to 34 knots. Mostly cloudy. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 2 to 4 feet. .SATURDAY...Northeast wind 5 to 15 knots veering east less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ246-100800- Point Isabelle to Lower Entrance of Portage Canal MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots veering southwest 15 to 20 knots by midnight. Gusts up to 32 knots. Mostly clear through late evening, then mostly cloudy with a chance of showers by midnight. Cloudy with showers likely late. Waves building to 2 to 4 feet. .FRIDAY...Southwest wind 15 to 20 knots veering northwest late. Gale force gusts up to 36 knots. Showers likely through mid morning. A slight chance of thunderstorms through early afternoon. A chance of showers by late morning. Waves subsiding to 1 to 2 feet. .FRIDAY NIGHT...North wind 15 to 20 knots diminishing to 10 to 15 knots after midnight. Gale force gusts up to 34 knots. Mostly cloudy. A slight chance of showers in the evening. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SATURDAY...Northeast wind less than 10 knots veering east in the afternoon. Gusts up to 18 knots. Partly cloudy. Waves 1 to 2 feet. $$ LSZ247-100800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind less than 10 knots with gusts up to 21 knots. Sunny. Waves calm to 1 foot. .TONIGHT...South wind 10 to 20 knots veering southwest 15 to 20 knots late. Gusts up to 32 knots. Mostly clear through late evening, then mostly cloudy with a chance of showers by midnight. Cloudy with showers likely late. Waves building to 2 to 3 feet. .FRIDAY...Southwest wind 15 to 20 knots veering northwest late. Gale force gusts up to 37 knots. Showers likely and a slight chance of thunderstorms through mid morning, then a chance of showers by late morning. Showers likely late. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .FRIDAY NIGHT...North wind 15 to 20 knots becoming 10 to 20 knots after midnight. Gale force gusts up to 34 knots. Mostly cloudy. A chance of showers in the evening. Waves subsiding to 2 to 3 feet. .SATURDAY...Northeast wind less than 10 knots veering east in the afternoon. Gusts up to 18 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ248-100800- Huron Islands to Marquette MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 10 to 20 knots veering southwest 15 to 20 knots by midnight. Gusts up to 33 knots. Mostly clear through late evening, then mostly cloudy with a slight chance of showers by midnight. Cloudy with showers likely late. Waves building to 2 to 3 feet. .FRIDAY...Southwest wind 15 to 20 knots veering northwest 20 to 25 knots late. Gale force gusts up to 37 knots. Showers and a slight chance of thunderstorms. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .FRIDAY NIGHT...North wind 20 to 25 knots diminishing to 15 to 20 knots after midnight. Gale force gusts up to 34 knots. Cloudy. A chance of showers in the evening. Waves building to 4 to 7 feet occasionally to 9 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 17 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ249-100800- Marquette to Munising MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 10 to 15 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 31 knots. Mostly clear through midnight, then cloudy with showers likely late. Waves building to 2 to 4 feet. .FRIDAY...Southwest wind 15 to 25 knots veering northwest 20 to 25 knots late. Gale force gusts up to 35 knots. Showers and a slight chance of thunderstorms. Waves subsiding to 2 to 3 feet, then building to 4 to 7 feet occasionally to 9 feet. .FRIDAY NIGHT...North wind 20 to 25 knots becoming 15 to 25 knots after midnight. Cloudy. Showers likely in the evening, then a slight chance of showers after midnight. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. .SATURDAY...Northeast wind 5 to 15 knots becoming less than 10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ250-100800- Munising to Grand Marais MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY MORNING... ...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 30 knots. Clear then becoming partly cloudy by midnight then becoming mostly cloudy. A chance of showers late. Waves building to 2 to 4 feet. .FRIDAY...South wind 20 to 25 knots veering northwest late. Gale force gusts up to 35 knots. Showers and a slight chance of thunderstorms. Waves building to 4 to 7 feet occasionally to 9 feet. .FRIDAY NIGHT...North wind 20 to 25 knots veering northeast 15 to 20 knots after midnight. Cloudy. Showers likely in the evening, then a slight chance of showers after midnight. Waves 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. $$ LSZ251-100800- Grand Marais to Whitefish Point MI- 502 PM EDT Thu Oct 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH FRIDAY EVENING... .LATE THIS AFTERNOON...South wind 15 to 20 knots. Sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 20 knots with gusts up to 27 knots. Mostly clear through midnight then becoming mostly cloudy. A slight chance of showers late. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .FRIDAY...South wind 15 to 20 knots veering west late. Gusts up to 31 knots. Showers through early afternoon, then showers likely and a slight chance of thunderstorms late. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .FRIDAY NIGHT...North wind 15 to 20 knots veering northeast after midnight. Mostly cloudy. A chance of showers in the evening. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SATURDAY...Northeast wind 10 to 15 knots veering east less than 10 knots in the afternoon. Mostly sunny. Waves subsiding to 1 to 2 feet. $$ WFO MQT