


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
616 FZUS53 KMQT 231501 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 1101 AM EDT Sat Aug 23 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. LMZ221-232000- Green Bay North of line from Cedar River MI to Rock Island Passage- 1101 AM EDT Sat Aug 23 2025 .REST OF TODAY...Northwest wind 15 to 20 knots. Mostly sunny. A chance of sprinkles late. Waves 2 to 4 feet subsiding to 2 to 3 feet. .TONIGHT...West wind 10 to 15 knots. Mostly clear. Waves subsiding to 1 to 2 feet. .SUNDAY...Northwest wind 5 to 15 knots. Partly cloudy with a chance of showers. A chance of waterspouts. Waves 1 to 2 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots. Mostly cloudy in the evening then becoming partly cloudy. A slight chance of showers. A chance of waterspouts. Waves 1 to 2 feet. $$ LMZ248-250-232000- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 1101 AM EDT Sat Aug 23 2025 .REST OF TODAY...Northwest wind 15 to 20 knots. Partly cloudy with a chance of showers. Waves 2 to 4 feet subsiding to 2 to 3 feet. .TONIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves subsiding to 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots. Partly cloudy. A chance of showers in the morning, then showers likely in the afternoon. A chance of waterspouts through the day. Waves 1 to 2 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots. Mostly cloudy with a chance of showers in the evening, then partly cloudy with a slight chance of showers after midnight. A chance of waterspouts through the night. Waves 1 to 2 feet. $$ LSZ240-232000- Saxon Harbor WI to Black River MI- 1101 AM EDT Sat Aug 23 2025 /1001 AM CDT Sat Aug 23 2025/ ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING... .REST OF TODAY...West wind 15 to 25 knots. Partly cloudy. A chance of sprinkles through the day. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet. .TONIGHT...Northwest wind 15 to 20 knots. Mostly cloudy with a chance of showers. Waves subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 15 to 20 knots. Mostly cloudy with a chance of showers. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. $$ LSZ241-232000- Black River to Ontonagon MI- 1101 AM EDT Sat Aug 23 2025 /1001 AM CDT Sat Aug 23 2025/ ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...West wind 15 to 25 knots. Partly cloudy. A chance of sprinkles by late morning, then a chance of showers late. Waves 3 to 6 feet occasionally to 8 feet. .TONIGHT...West wind 15 to 20 knots. Mostly cloudy. A slight chance of showers through midnight, then a chance of showers late. Waves subsiding to 3 to 5 feet occasionally to 7 feet. .SUNDAY...Northwest wind 15 to 20 knots. Cloudy with a chance of showers. Waves 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves subsiding to 2 to 4 feet. $$ LSZ242-243-232000- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON... .REST OF TODAY...West wind 20 to 25 knots. Partly cloudy. A chance of sprinkles through the day. Waves 3 to 6 feet occasionally to 8 feet building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...West wind 15 to 20 knots with gusts up to 31 knots. Partly cloudy through late evening then becoming mostly cloudy. A chance of showers through late evening, then a chance of sprinkles by midnight. A slight chance of showers late. Waves subsiding to 3 to 5 feet occasionally to 7 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northwest wind 15 to 20 knots with gusts up to 28 knots. Cloudy with a chance of showers. Waves subsiding to 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ245-232000- Manitou Island to Point Isabelle MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...Northwest wind 20 to 25 knots. Mostly sunny. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots with gusts up to 27 knots. Mostly clear through midnight then becoming mostly cloudy. A chance of sprinkles late. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts up to 27 knots. Mostly cloudy with a chance of showers. Waves building to 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to 26 knots. Mostly cloudy. Waves 2 to 4 feet. $$ LSZ244-232000- Eagle River to Manitou Island MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...West wind up to 30 knots. Mostly sunny. A chance of sprinkles late. Waves 3 to 6 feet occasionally to 8 feet building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...West wind 15 to 20 knots with gusts up to 28 knots. Partly cloudy through midnight then becoming mostly cloudy. A chance of sprinkles through late evening. A chance of sprinkles late. Waves subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 15 to 20 knots with gusts up to 28 knots. Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots with gusts up to 27 knots. Mostly cloudy. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet. $$ LSZ246-232000- Point Isabelle to Lower Entrance of Portage Canal MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...Northwest wind 15 to 25 knots. Partly cloudy. A chance of sprinkles. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...West wind 10 to 15 knots with gusts up to 30 knots. Partly cloudy with a chance of sprinkles through midnight, then mostly cloudy with a slight chance of showers late. Waves subsiding to 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts up to 27 knots. Mostly cloudy with a chance of showers. Waves calm to 1 foot. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to 26 knots. Mostly cloudy. A slight chance of showers in the evening. Waves calm to 1 foot. $$ LSZ247-232000- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...Northwest wind 15 to 25 knots. Partly cloudy. A chance of showers by late morning, then a chance of sprinkles late. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 20 knots with gusts up to 29 knots. Mostly clear with a chance of sprinkles through late evening, then mostly cloudy with a chance of showers by midnight. Waves subsiding to 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts up to 27 knots. Mostly cloudy with a chance of showers. Waves 1 to 2 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to 26 knots. Mostly cloudy. A slight chance of showers in the evening. Waves 1 to 2 feet. $$ LSZ248-232000- Huron Islands to Marquette MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...Northwest wind 20 to 25 knots. Partly cloudy. Waves 3 to 6 feet occasionally to 8 feet subsiding to 3 to 5 feet occasionally to 7 feet. .TONIGHT...West wind 10 to 20 knots with gusts up to 28 knots. Mostly clear through midnight then becoming mostly cloudy. A chance of showers through midnight, then a slight chance of showers late. Waves subsiding to 1 to 2 feet. .SUNDAY...Northwest wind 10 to 15 knots with gusts up to 26 knots. Mostly cloudy with a chance of showers. Waves 1 to 2 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to 26 knots. Mostly cloudy with a slight chance of showers. Waves building to 2 to 3 feet. $$ LSZ249-232000- Marquette to Munising MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .REST OF TODAY...Northwest wind 15 to 25 knots. Mostly sunny. Waves 4 to 7 feet occasionally to 9 feet. .TONIGHT...West wind 10 to 15 knots with gusts up to 24 knots. Mostly clear through midnight then becoming mostly cloudy. A chance of sprinkles by midnight. A chance of showers late. Waves subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. A chance of showers in the morning, then showers likely in the afternoon. Waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Cloudy with a slight chance of showers. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ250-232000- Munising to Grand Marais MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...Northwest wind 20 to 25 knots. Mostly sunny. A chance of showers by late morning. Waves 4 to 7 feet occasionally to 9 feet. .TONIGHT...West wind 15 to 20 knots. Mostly clear through midnight then becoming mostly cloudy. A chance of sprinkles through late evening, then a slight chance of showers by midnight. A chance of showers late. Waves subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. Showers likely. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Cloudy with a slight chance of showers. Waves building to 3 to 6 feet occasionally to 8 feet. $$ LSZ251-232000- Grand Marais to Whitefish Point MI- 1101 AM EDT Sat Aug 23 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING... .REST OF TODAY...West wind 15 to 25 knots. Partly cloudy. A slight chance of showers by late morning. Waves 3 to 5 feet occasionally to 7 feet building to 4 to 7 feet occasionally to 9 feet. .TONIGHT...West wind 10 to 15 knots. Partly cloudy with a chance of sprinkles through midnight, then mostly cloudy with a chance of showers late. Waves subsiding to 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. Mostly cloudy with a chance of showers. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Cloudy with a slight chance of showers. Waves building to 3 to 6 feet occasionally to 8 feet. $$ WFO MQT