


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
402 FZUS53 KMQT 170902 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 AM EDT Wed Sep 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- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Patchy fog. Waves calm to 1 foot. .TODAY...Southwest wind less than 10 knots backing south late. Mostly sunny. Isolated showers and thunderstorms by late morning. Scattered showers and thunderstorms late. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Partly cloudy. Scattered showers and isolated thunderstorms through late evening. Waves calm to 1 foot. .THURSDAY...North wind less than 10 knots. Mostly cloudy in the morning then clearing. Waves calm to 1 foot. .THURSDAY NIGHT...North wind 10 to 15 knots veering northeast less than 10 knots after midnight. Mostly clear. Waves calm to 1 foot. $$ LMZ248-250-172000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...South wind less than 10 knots. Mostly clear. Patchy fog. Waves calm to 1 foot. .TODAY...Southwest wind less than 10 knots. Partly cloudy. Isolated showers and thunderstorms late. Waves calm to 1 foot. .TONIGHT...Northwest wind less than 10 knots veering north by midnight. Partly cloudy. Isolated showers and thunderstorms through late evening. Waves calm to 1 foot. .THURSDAY...North wind less than 10 knots. Mostly cloudy in the morning then becoming mostly sunny. Waves calm to 1 foot. .THURSDAY NIGHT...North wind less than 10 knots veering northeast after midnight. Mostly clear. Waves calm to 1 foot. $$ LSZ240-241-172000- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 502 AM EDT Wed Sep 17 2025 /402 AM CDT Wed Sep 17 2025/ .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...West wind less than 10 knots through mid morning becoming variable. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Northeast wind 5 to 15 knots. Mostly clear through midnight then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...Northeast wind 10 to 15 knots. Partly cloudy. Waves building to 2 to 3 feet. .THURSDAY NIGHT...East wind 5 to 15 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves subsiding to 1 to 2 feet. $$ LSZ242-243-172000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...West wind less than 10 knots through early afternoon becoming variable. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots becoming 5 to 15 knots by midnight. Partly cloudy through midnight then becoming mostly cloudy. Waves building to 2 to 3 feet. .THURSDAY...Northeast wind 10 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .THURSDAY NIGHT...East wind less than 10 knots with gusts up to 17 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ244-245-172000- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Waves 1 to 2 feet. .TODAY...West wind less than 10 knots veering northwest by late morning. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Northwest wind less than 10 knots veering northeast 10 to 15 knots late. Partly cloudy. Waves building to 2 to 3 feet. .THURSDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .THURSDAY NIGHT...Northeast wind less than 10 knots veering east after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ246-172000- Point Isabelle to Lower Entrance of Portage Canal MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...West wind less than 10 knots veering north late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots veering northeast late. Partly cloudy through midnight then becoming mostly cloudy. Waves calm to 1 foot. .THURSDAY...Northeast wind less than 10 knots with gusts up to 19 knots. Partly cloudy. Waves calm to 1 foot. .THURSDAY NIGHT...Variable wind less than 10 knots becoming east less than 10 knots after midnight. Mostly clear. Waves calm to 1 foot. $$ LSZ247-172000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...Southwest wind less than 10 knots veering north late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots. Partly cloudy through midnight then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...Northeast wind less than 10 knots with gusts up to 20 knots. Partly cloudy. Waves 1 to 2 feet. .THURSDAY NIGHT...East wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. $$ LSZ248-172000- Huron Islands to Marquette MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...Southwest wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .TODAY...Southwest wind less than 10 knots veering north late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Partly cloudy through midnight then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...Northeast wind less than 10 knots with gusts up to 19 knots. Partly cloudy. Waves 1 to 2 feet. .THURSDAY NIGHT...Variable wind less than 10 knots becoming east less than 10 knots after midnight. Mostly clear. Waves 1 to 2 feet. $$ LSZ249-172000- Marquette to Munising MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...South wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .TODAY...Southwest wind less than 10 knots veering northwest by late morning, then veering north late. Partly cloudy with isolated showers and thunderstorms. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Partly cloudy through midnight then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...North wind less than 10 knots. Partly cloudy. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind less than 10 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ250-172000- Munising to Grand Marais MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...South wind 10 to 15 knots. Mostly clear. Waves calm to 1 foot. .TODAY...Southwest wind 10 to 15 knots veering northwest less than 10 knots late. Partly cloudy. Isolated showers and thunderstorms through early afternoon. Waves calm to 1 foot. .TONIGHT...Northwest wind less than 10 knots veering north late. Partly cloudy through midnight then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...North wind 10 to 15 knots. Partly cloudy. Waves 1 to 2 feet. .THURSDAY NIGHT...North wind 10 to 15 knots veering northeast after midnight. Clear. Waves 1 to 2 feet. $$ LSZ251-172000- Grand Marais to Whitefish Point MI- 502 AM EDT Wed Sep 17 2025 .EARLY THIS MORNING...South wind 10 to 15 knots. Mostly clear. Waves calm to 1 foot. .TODAY...South wind less than 10 knots veering northwest late. Partly cloudy with isolated showers and thunderstorms. Waves calm to 1 foot. .TONIGHT...Northwest wind less than 10 knots veering north late. Partly cloudy through late evening then becoming mostly cloudy. Waves building to 1 to 2 feet. .THURSDAY...North wind 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .THURSDAY NIGHT...Northeast wind 10 to 15 knots veering east after midnight. Clear. Waves 1 to 2 feet. $$ WFO MQT