FZUS53 KMQT 201501 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 1101 AM EDT Mon Apr 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- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON THROUGH LATE TONIGHT... .REST OF TODAY...South wind 15 to 25 knots. Partly cloudy. Waves calm to 1 foot building to 3 to 5 feet occasionally to 7 feet. .TONIGHT...South wind 15 to 25 knots veering southwest 10 to 20 knots late. Mostly cloudy through midnight then clearing. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to 2 to 3 feet. .TUESDAY...Southwest wind 5 to 15 knots backing east less than 10 knots in the afternoon. Sunny. Waves subsiding to 1 to 2 feet. .TUESDAY NIGHT...Northeast wind less than 10 knots. Clear. Waves 1 to 2 feet. $$ LMZ248-250-202000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON THROUGH TUESDAY AFTERNOON... .REST OF TODAY...Southwest wind 10 to 20 knots backing south 20 to 25 knots late. Partly cloudy. Waves calm to 1 foot building to 3 to 5 feet occasionally to 7 feet. .TONIGHT...South wind 20 to 25 knots veering southwest 15 to 25 knots late. Gusts up to 32 knots. Cloudy through midnight then becoming mostly clear. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 4 to 7 feet occasionally to 9 feet. .TUESDAY...Southwest wind 5 to 15 knots veering northwest less than 10 knots in the afternoon. Gusts up to 23 knots. Sunny. Waves subsiding to 2 to 3 feet. .TUESDAY NIGHT...North wind less than 10 knots. Clear. Waves subsiding to 1 to 2 feet. $$ LSZ240-202000- Saxon Harbor WI to Black River MI- 1101 AM EDT Mon Apr 20 2026 /1001 AM CDT Mon Apr 20 2026/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT /4 PM CDT/ THIS AFTERNOON TO 9 PM EDT /8 PM CDT/ THIS EVENING... .REST OF TODAY...Southwest wind 10 to 20 knots. Mostly cloudy. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...Southwest wind 10 to 15 knots becoming 5 to 15 knots late. Gusts up to 23 knots. Partly cloudy through late evening then clearing. Waves 1 to 2 feet. .TUESDAY...Northwest wind less than 10 knots in the morning becoming variable. Sunny. Waves calm to 1 foot. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ241-202000- Black River to Ontonagon MI- 1101 AM EDT Mon Apr 20 2026 /1001 AM CDT Mon Apr 20 2026/ .REST OF TODAY...Southwest wind less than 10 knots backing south 10 to 15 knots late. Gusts up to 23 knots in the afternoon. Mostly cloudy. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots veering west 10 to 15 knots late. Mostly cloudy through late evening then clearing. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .TUESDAY...West wind less than 10 knots. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ242-243-202000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH LATE TONIGHT... .REST OF TODAY...Southwest wind 5 to 15 knots backing south late. Mostly cloudy. Waves 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots veering west 10 to 15 knots late. Mostly cloudy through late evening then clearing. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .TUESDAY...West wind less than 10 knots. Sunny. Waves subsiding to 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots becoming southeast less than 10 knots after midnight. Clear. Waves calm to 1 foot. $$ LSZ244-245-202000- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH LATE TONIGHT... .REST OF TODAY...Southwest wind 10 to 15 knots backing southeast 15 to 20 knots late. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet. .TONIGHT...South wind 10 to 20 knots veering west late. Gusts up to 27 knots. Mostly cloudy through late evening then clearing. Waves subsiding to 2 to 3 feet. .TUESDAY...Northwest wind less than 10 knots. Sunny. Waves subsiding to 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ246-202000- Point Isabelle to Lower Entrance of Portage Canal MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT LATE TONIGHT... .REST OF TODAY...South wind less than 10 knots backing southeast 10 to 20 knots late. Mostly cloudy. Waves calm to 1 foot building to 2 to 3 feet. .TONIGHT...Southwest wind 10 to 15 knots veering west late. Gusts up to 24 knots. Mostly cloudy through late evening then clearing. Waves subsiding to 1 to 2 feet. .TUESDAY...Northwest wind less than 10 knots. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ247-202000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT LATE TONIGHT... .REST OF TODAY...South wind less than 10 knots increasing to 10 to 15 knots late. Gusts up to 22 knots. Mostly cloudy. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...Southwest wind 10 to 20 knots becoming 10 to 15 knots late. Mostly cloudy then becoming partly cloudy by midnight then becoming clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .TUESDAY...West wind less than 10 knots veering north in the afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ248-202000- Huron Islands to Marquette MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM EDT THIS EVENING THROUGH LATE TONIGHT... .REST OF TODAY...South wind 5 to 15 knots with gusts up to 22 knots. Partly cloudy. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...South wind 10 to 15 knots veering west late. Gusts up to 27 knots. Mostly cloudy then becoming partly cloudy by midnight then becoming clear. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .TUESDAY...Northwest wind 10 to 15 knots veering north less than 10 knots in the afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. $$ LSZ249-202000- Marquette to Munising MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH LATE TONIGHT... .REST OF TODAY...South wind less than 10 knots increasing to 10 to 20 knots late. Partly cloudy. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...South wind 15 to 20 knots veering southwest 10 to 20 knots late. Gusts up to 29 knots. Mostly cloudy through midnight then clearing. Waves building to 2 to 4 feet, then subsiding to 1 to 2 feet. .TUESDAY...Northwest wind 10 to 15 knots veering north less than 10 knots in the afternoon. Sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...Variable wind less than 10 knots. Clear. Waves 1 to 2 feet. $$ LSZ250-202000- Munising to Grand Marais MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH LATE TONIGHT... .REST OF TODAY...Southwest wind less than 10 knots backing south 10 to 20 knots late. Mostly sunny. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...South wind 15 to 25 knots veering southwest 15 to 20 knots late. Mostly cloudy through midnight then becoming mostly clear. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .TUESDAY...West wind 10 to 15 knots veering northwest less than 10 knots in the afternoon. Sunny. Waves subsiding to 1 to 2 feet. .TUESDAY NIGHT...Northwest wind less than 10 knots. Clear. Waves 1 to 2 feet. $$ LSZ251-202000- Grand Marais to Whitefish Point MI- 1101 AM EDT Mon Apr 20 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EDT THIS EVENING THROUGH TUESDAY MORNING... .REST OF TODAY...West wind less than 10 knots backing southeast 10 to 15 knots late. Gusts up to 23 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet. .TONIGHT...South wind 15 to 25 knots veering southwest 15 to 20 knots late. Cloudy through midnight then becoming partly cloudy. A slight chance of snow showers through late evening. Waves building to 2 to 4 feet, then subsiding to 2 to 3 feet. .TUESDAY...West wind 10 to 15 knots veering northwest less than 10 knots in the afternoon. Sunny. Waves subsiding to 1 to 2 feet. .TUESDAY NIGHT...Northwest wind less than 10 knots in the evening becoming variable. Clear. Waves 1 to 2 feet. $$ WFO MQT