219 FZUS53 KMQT 200904 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 504 AM EDT Wed May 20 2026 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. LMZ221-202000- Green Bay North of line from Cedar River MI to Rock Island Passage- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...North wind less than 10 knots. Mostly cloudy. Waves calm to 1 foot. .TODAY...North wind less than 10 knots veering northeast late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .THURSDAY...East wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .THURSDAY NIGHT...East wind less than 10 knots. Mostly clear in the evening then becoming mostly cloudy. Waves calm to 1 foot. $$ LMZ248-250-202000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...North wind less than 10 knots. Mostly cloudy. Waves 1 to 2 feet. .TODAY...North wind 10 to 15 knots becoming 5 to 15 knots late. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...Northeast wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .THURSDAY...East wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .THURSDAY NIGHT...East wind less than 10 knots. Mostly clear in the evening then becoming mostly cloudy. Waves building to 1 to 2 feet. $$ LSZ240-241-202000- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 504 AM EDT Wed May 20 2026 /404 AM CDT Wed May 20 2026/ .EARLY THIS MORNING...Northwest wind less than 10 knots. Partly cloudy. Waves 1 to 2 feet. .TODAY...Variable wind less than 10 knots. Partly cloudy through mid morning then clearing. Waves 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots becoming south less than 10 knots late. Clear. Waves calm to 1 foot. .THURSDAY...Southeast wind less than 10 knots backing northeast in the afternoon. Sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...East wind less than 10 knots veering southeast after midnight. Partly cloudy. Waves 1 to 2 feet. $$ LSZ242-243-202000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...Northwest wind less than 10 knots. Mostly clear. Waves 1 to 2 feet. .TODAY...Northwest wind less than 10 knots backing west by late morning. Sunny. Waves 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots becoming south less than 10 knots late. Clear. Waves calm to 1 foot. .THURSDAY...South wind less than 10 knots backing northeast in the afternoon. Sunny. Waves calm to 1 foot. .THURSDAY NIGHT...Southeast wind 10 to 15 knots diminishing to less than 10 knots after midnight. Mostly clear. Waves calm to 1 foot. $$ LSZ244-245-202000- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .TODAY...Northwest wind less than 10 knots through early afternoon becoming variable. Sunny. Waves subsiding to 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots becoming south less than 10 knots by midnight. Clear. Waves calm to 1 foot. .THURSDAY...South wind less than 10 knots backing southeast 10 to 15 knots in the afternoon. Mostly sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ246-202000- Point Isabelle to Lower Entrance of Portage Canal MI- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...Northwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...Variable wind less than 10 knots becoming north less than 10 knots by late morning, then veering southeast late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...East wind less than 10 knots through late evening becoming variable. Clear. Waves calm to 1 foot. .THURSDAY...Southeast wind less than 10 knots backing east 10 to 15 knots in the afternoon. Mostly sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...East wind 5 to 15 knots veering southeast less than 10 knots after midnight. Mostly clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. $$ LSZ247-202000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...Northwest wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .TODAY...Variable wind less than 10 knots becoming east less than 10 knots late. Mostly sunny. Waves calm to 1 foot. .TONIGHT...East wind less than 10 knots through late evening becoming variable. Clear. Waves calm to 1 foot. .THURSDAY...Southeast wind less than 10 knots backing east 10 to 15 knots in the afternoon. Sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 15 knots in the evening becoming variable. Partly cloudy. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. $$ LSZ248-202000- Huron Islands to Marquette MI- 504 AM EDT Wed May 20 2026 .EARLY THIS MORNING...Northwest wind 5 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .TODAY...Northwest wind less than 10 knots veering east late. Partly cloudy through mid morning then clearing. Waves subsiding to 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. .THURSDAY...Southeast wind 5 to 15 knots backing east 10 to 15 knots in the afternoon. Sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...Southeast wind 5 to 15 knots veering south less than 10 knots after midnight. Partly cloudy. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. $$ LSZ249-202000- Marquette to Munising MI- 504 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .EARLY THIS MORNING...Northwest wind 10 to 15 knots. Mostly cloudy. Waves 3 to 5 feet occasionally to 7 feet. .TODAY...Northwest wind 5 to 15 knots veering north less than 10 knots late. Mostly sunny. Waves subsiding to 1 to 2 feet. .TONIGHT...Variable wind less than 10 knots. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southeast wind less than 10 knots backing east 5 to 15 knots in the afternoon. Mostly sunny. Waves building to 1 to 2 feet. .THURSDAY NIGHT...Southeast wind less than 10 knots. Mostly clear. Waves 1 to 2 feet. $$ LSZ250-202000- Munising to Grand Marais MI- 504 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .EARLY THIS MORNING...Northwest wind 15 to 20 knots. Partly cloudy. Waves 3 to 6 feet occasionally to 8 feet. .TODAY...Northwest wind 5 to 15 knots. Partly cloudy through early afternoon then clearing. Waves subsiding to 1 to 2 feet. .TONIGHT...Northwest wind less than 10 knots through late evening becoming variable. Mostly clear. Waves 1 to 2 feet. .THURSDAY...Southeast wind less than 10 knots backing east in the afternoon. Sunny. Waves calm to 1 foot. .THURSDAY NIGHT...Southeast wind less than 10 knots. Mostly clear. Waves calm to 1 foot. $$ LSZ251-202000- Grand Marais to Whitefish Point MI- 504 AM EDT Wed May 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .EARLY THIS MORNING...Northwest wind 20 to 25 knots. Partly cloudy. Waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet occasionally to 8 feet. .TODAY...Northwest wind 10 to 20knots. Partly cloudy through early afternoon then clearing. Waves subsiding to 2 to 3 feet. .TONIGHT...Northwest wind less than 10 knots through late evening becoming variable. Clear. Waves subsiding to 1 to 2 feet. .THURSDAY...Southeast wind less than 10 knots backing northeast in the afternoon. Sunny. Waves calm to 1 foot. .THURSDAY NIGHT...Southeast wind less than 10 knots. Mostly clear. Waves calm to 1 foot. $$ WFO MQT