


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
016 FZUS53 KMQT 171501 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 1101 AM EDT Sun Aug 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- 1101 AM EDT Sun Aug 17 2025 .REST OF TODAY...Northeast wind 10 to 15 knots veering east late. Sunny. Waves 2 to 3 feet subsiding to 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots veering southeast 15 to 20 knots late. Clear through midnight then becoming partly cloudy. A slight chance of showers late. Waves building to 2 to 4 feet. .MONDAY...Southeast wind 10 to 15 knots. Mostly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...Southeast wind 10 to 15 knots. Cloudy. Showers likely and a chance of thunderstorms in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LMZ248-250-172000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1101 AM EDT Sun Aug 17 2025 .REST OF TODAY...Northeast wind 10 to 15 knots veering east late. Sunny. Waves 2 to 4 feet subsiding to 2 to 3 feet. .TONIGHT...Northeast wind 10 to 20 knots veering southeast 15 to 20 knots late. Mostly clear. Waves building to 3 to 5 feet occasionally to 7 feet. .MONDAY...Southeast wind 10 to 15 knots. Mostly cloudy. A slight chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...Southeast wind 10 to 15 knots. Showers likely and a chance of thunderstorms. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. $$ LSZ240-241-172000- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 1101 AM EDT Sun Aug 17 2025 /1001 AM CDT Sun Aug 17 2025/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...Northeast wind 15 to 25 knots. Mostly sunny. Waves 3 to 5 feet occasionally to 7 feet building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...East wind 15 to 20 knots veering southeast 10 to 15 knots by midnight. Partly cloudy through midnight then becoming cloudy. A chance of showers in the evening. A slight chance of thunderstorms through the night. Showers likely after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots. Showers and a chance of thunderstorms. Waves 1 to 2 feet. .MONDAY NIGHT...East wind less than 10 knots backing northeast 10 to 15 knots after midnight. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Waves building to 1 to 2 feet. $$ LSZ242-243-172000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots veering east late. Gusts up to 22 knots. Mostly sunny. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .TONIGHT...Southeast wind 10 to 15 knots. Mostly clear through midnight then becoming mostly cloudy. A slight chance of showers by midnight. Showers likely late. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 26 knots. Showers likely and a chance of thunderstorms. Waves calm to 1 foot. .MONDAY NIGHT...Southeast wind 10 to 15 knots backing east after midnight. Gusts up to 22 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Waves 1 to 2 feet. $$ LSZ245-172000- Manitou Island to Point Isabelle MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .REST OF TODAY...East wind 10 to 15 knots. Sunny. Waves 3 to 5 feet occasionally to 7 feet subsiding to 1 to 2 feet. .TONIGHT...East wind 10 to 15 knots veering southeast 15 to 20 knots late. Clear through midnight, then partly cloudy with a chance of showers late. Waves building to 2 to 4 feet. .MONDAY...Southeast wind 15 to 20 knots with gusts up to 28 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 2 to 4 feet. .MONDAY NIGHT...East wind 5 to 15 knots with gusts up to 25 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Waves subsiding to 2 to 3 feet. $$ LSZ244-172000- Eagle River to Manitou Island MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... .REST OF TODAY...East wind 10 to 15 knots. Sunny. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 3 feet. .TONIGHT...Southeast wind 10 to 15 knots becoming 10 to 20 knots late. Mostly clear through midnight then becoming mostly cloudy. A chance of showers late. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet. .MONDAY...Southeast wind 15 to 20 knots with gusts up to 31 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .MONDAY NIGHT...Southeast wind 10 to 15 knots backing east after midnight. Gusts up to 24 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Waves 2 to 4 feet. $$ LSZ246-172000- Point Isabelle to Lower Entrance of Portage Canal MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING... .REST OF TODAY...East wind 10 to 15 knots. Mostly sunny. Waves 2 to 4 feet. .TONIGHT...Southeast wind 10 to 15 knots. Mostly clear through midnight then becoming mostly cloudy. A chance of showers late. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 27 knots. Showers likely and a chance of thunderstorms. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. .MONDAY NIGHT...Southeast wind 10 to 15 knots backing east less than 10 knots after midnight. Gusts up to 25 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Waves 2 to 3 feet. $$ LSZ247-172000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING... .REST OF TODAY...East wind 10 to 20 knots. Mostly sunny. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .TONIGHT...East wind 10 to 15 knots veering southeast late. Mostly clear through midnight then becoming mostly cloudy. A slight chance of showers by midnight. A chance of showers late. Waves subsiding to 2 to 3 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 25 knots. Showers likely and a chance of thunderstorms. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...Southeast wind less than 10 knots backing east after midnight. Gusts up to 22 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Waves 1 to 2 feet. $$ LSZ248-172000- Huron Islands to Marquette MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING... .REST OF TODAY...Northeast wind 10 to 15 knots veering east late. Mostly sunny. Waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to 3 feet. .TONIGHT...East wind 10 to 15 knots veering southeast by midnight. Clear through midnight then becoming partly cloudy. A chance of showers late. Waves 2 to 3 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 25 knots. Cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT...Southeast wind less than 10 knots with gusts up to 22 knots. Cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LSZ249-172000- Marquette to Munising MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING... .REST OF TODAY...Northeast wind 10 to 15 knots. Sunny. Waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to 3 feet. .TONIGHT...East wind 10 to 15 knots veering southeast by midnight. Mostly clear. A slight chance of showers late. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots. Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...Southeast wind 5 to 15 knots. Cloudy. Showers likely and a chance of thunderstorms in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LSZ250-172000- Munising to Grand Marais MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots. Sunny. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 3 feet. .TONIGHT...East wind 10 to 15 knots veering southeast by midnight. Clear. A slight chance of showers late. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots. Mostly cloudy. A slight chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. .MONDAY NIGHT...Southeast wind 10 to 15 knots. Cloudy. Showers likely and a chance of thunderstorms in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 2 feet. $$ LSZ251-172000- Grand Marais to Whitefish Point MI- 1101 AM EDT Sun Aug 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON... .REST OF TODAY...Northeast wind 10 to 15 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet. .TONIGHT...Northeast wind 10 to 15 knots veering southeast 10 to 20 knots by midnight. Clear. Waves building to 2 to 3 feet. .MONDAY...Southeast wind 10 to 20 knots. Partly cloudy in the morning, then cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .MONDAY NIGHT...Southeast wind 10 to 20 knots. Cloudy. Showers likely and a chance of thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Waves subsiding to 1 to 2 feet. $$ WFO MQT