Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
303 FZUS53 KMQT 162102 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 502 PM EDT Sat Aug 16 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. LMZ221-170800- Green Bay North of line from Cedar River MI to Rock Island Passage- 502 PM EDT Sat Aug 16 2025 .LATE THIS AFTERNOON...Northwest wind less than 10 knots. Cloudy with a chance of showers and thunderstorms. Waves calm to 1 foot. .TONIGHT...North wind 10 to 15 knots. Cloudy with a slight chance of showers and thunderstorms through late evening, then partly cloudy by midnight. Waves building to 1 to 2 feet. .SUNDAY...Northeast wind 10 to 15 knots. Mostly sunny. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY NIGHT...Northeast wind 10 to 15 knots veering southeast after midnight. Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Waves building to 2 to 3 feet. .MONDAY...Southeast wind 10 to 15 knots. Showers likely and a chance of thunderstorms. Waves subsiding to 1 to 2 feet. $$ LMZ248-250-170800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 502 PM EDT Sat Aug 16 2025 .LATE THIS AFTERNOON...Northwest wind less than 10 knots. Cloudy with a chance of showers and thunderstorms. Waves calm to 1 foot. .TONIGHT...North wind 10 to 15 knots. Cloudy with a slight chance of showers and thunderstorms through late evening, then partly cloudy by midnight. Waves building to 2 to 3 feet. .SUNDAY...Northeast wind 10 to 15 knots veering east late. Mostly sunny. Waves building to 2 to 4 feet, then subsiding to 1 to 2 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast 15 to 20 knots after midnight. Mostly clear in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves building to 2 to 3 feet. .MONDAY...Southeast wind 10 to 20 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves subsiding to 1 to 2 feet. $$ LSZ240-170800- Saxon Harbor WI to Black River MI- 502 PM EDT Sat Aug 16 2025 /402 PM CDT Sat Aug 16 2025/ ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...Northeast wind 10 to 15 knots with gusts up to 22 knots. Cloudy with a slight chance of showers and thunderstorms. Waves 3 to 5 feet occasionally to 7 feet. .TONIGHT...Northeast wind 10 to 15 knots veering east late. Gusts up to 23 knots. Mostly cloudy through late evening then clearing. Waves subsiding to 2 to 4 feet. .SUNDAY...East wind 10 to 15 knots backing northeast 15 to 20 knots by late morning. Mostly sunny. A slight chance of showers by late morning. A slight chance of showers and thunderstorms late. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...South wind less than 10 knots veering northwest 10 to 15 knots in the afternoon. Mostly cloudy. Showers likely and a chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 1 to 2 feet. $$ LSZ241-170800- Black River to Ontonagon MI- 502 PM EDT Sat Aug 16 2025 /402 PM CDT Sat Aug 16 2025/ ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT /3 AM CDT/ SUNDAY THROUGH SUNDAY EVENING... .LATE THIS AFTERNOON...Northeast wind 15 to 20 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to 4 feet. .TONIGHT...Northeast wind 10 to 20 knots veering east 15 to 20 knots late. Partly cloudy through midnight then clearing. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast wind 15 to 20 knots. Mostly sunny. A slight chance of showers late. Waves subsiding to 3 to 5 feet occasionally to 7 feet, then building to 3 to 6 feet occasionally to 8 feet. .SUNDAY NIGHT...East wind 10 to 20 knots veering southeast 10 to 15 knots after midnight. Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and a chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots backing northeast in the afternoon. Mostly cloudy. Showers likely and a chance of thunderstorms in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Waves 1 to 2 feet. $$ LSZ242-243-170800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...Northeast wind 15 to 20 knots. Cloudy with a slight chance of showers and thunderstorms. Waves 2 to 4 feet. .TONIGHT...Northeast wind 10 to 20 knots veering east 15 to 20 knots late. Partly cloudy through late evening then clearing. Waves subsiding to 2 to 3 feet, then building to 4 to 7 feet occasionally to 9 feet. .SUNDAY...East wind 15 to 20 knots with gusts up to 28 knots. Mostly sunny. Waves subsiding to 2 to 4 feet. .SUNDAY NIGHT...East wind 10 to 15 knots with gusts up to 27 knots. Partly cloudy with a slight chance of showers and thunderstorms in the evening, then cloudy with showers likely and a chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 25 knots. Mostly cloudy. Showers likely and a chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. $$ LSZ245-170800- Manitou Island to Point Isabelle MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Cloudy with a slight chance of showers. Waves 1 to 2 feet. .TONIGHT...North wind 10 to 15 knots veering northeast 15 to 25 knots by midnight. Mostly clear. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...East wind 10 to 20 knots. Sunny. Waves subsiding to 2 to 3 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Gusts up to 25 knots. Partly cloudy in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .MONDAY...Southeast wind 10 to 20 knots with gusts up to 27 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. $$ LSZ244-170800- Eagle River to Manitou Island MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Mostly cloudy with a slight chance of showers. Waves 2 to 3 feet subsiding to 1 to 2 feet. .TONIGHT...North wind 10 to 20 knots veering northeast 15 to 25 knots by midnight. Mostly clear. Waves building to 4 to 7 feet occasionally to 9 feet. .SUNDAY...East wind 10 to 20 knots. Sunny. Waves subsiding to 2 to 3 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast 10 to 20 knots after midnight. Partly cloudy in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .MONDAY...Southeast wind 15 to 20 knots with gusts up to 29 knots. Showers likely and a slight chance of thunderstorms. Waves building to 3 to 5 feet occasionally to 7 feet. $$ LSZ246-170800- Point Isabelle to Lower Entrance of Portage Canal MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...Northeast wind 10 to 15 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...North wind less than 10 knots veering northeast 10 to 20 knots by midnight. Mostly cloudy through late evening then clearing. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...East wind 10 to 20 knots with gusts up to 28 knots. Mostly sunny. Waves subsiding to 2 to 4 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Gusts up to 25 knots. Partly cloudy in the evening, then mostly cloudy with showers likely and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 26 knots. Cloudy. Showers likely and a chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves building to 2 to 4 feet. $$ LSZ247-170800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...Northeast wind 10 to 15 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...Northeast wind less than 10 knots increasing to 10 to 20 knots by midnight, then becoming 15 to 20 knots late. Mostly cloudy through late evening then clearing. Waves building to 3 to 5 feet occasionally to 7 feet. .SUNDAY...East wind 10 to 20 knots with gusts up to 28 knots. Mostly sunny. Waves subsiding to 2 to 4 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast less than 10 knots after midnight. Gusts up to 24 knots. Partly cloudy in the evening, then mostly cloudy with showers likely and a chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 25 knots. Cloudy. Showers likely and a chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Waves building to 2 to 3 feet. $$ LSZ248-170800- Huron Islands to Marquette MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...North wind less than 10 knots increasing to 10 to 20 knots by midnight, then veering northeast 15 to 20 knots late. Mostly cloudy through late evening then clearing. A slight chance of showers through late evening. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet. .SUNDAY NIGHT...East wind less than 10 knots veering southeast 5 to 15 knots after midnight. Gusts up to 23 knots. Partly cloudy in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots with gusts up to 24 knots. Showers likely and a chance of thunderstorms. Waves building to 2 to 3 feet. $$ LSZ249-170800- Marquette to Munising MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...North wind 10 to 20 knots veering northeast 15 to 20 knots late. Cloudy with a slight chance of showers and thunderstorms through late evening, then mostly clear by midnight. Waves building to 4 to 7 feet occasionally to 9 feet. .SUNDAY...Northeast wind 10 to 20 knots. Sunny. Waves subsiding to 2 to 4 feet. .SUNDAY NIGHT...East wind less than 10 knots veering southeast 5 to 15 knots after midnight. Mostly clear in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 10 to 15 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves 1 to 2 feet. $$ LSZ250-170800- Munising to Grand Marais MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves 1 to 2 feet. .TONIGHT...North wind 10 to 15 knots increasing to 15 to 25 knots by midnight, then veering northeast 20 to 25 knots late. Mostly cloudy with a slight chance of showers through late evening, then mostly clear by midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast wind 10 to 20 knots. Sunny. Waves subsiding to 2 to 3 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast after midnight. Mostly clear in the evening, then mostly cloudy with a slight chance of showers after midnight. Waves subsiding to 1 to 2 feet. .MONDAY...Southeast wind 15 to 20 knots. Showers likely and a slight chance of thunderstorms in the morning, then showers likely and a chance of thunderstorms in the afternoon. Waves building to 2 to 3 feet. $$ LSZ251-170800- Grand Marais to Whitefish Point MI- 502 PM EDT Sat Aug 16 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SUNDAY THROUGH SUNDAY AFTERNOON... .LATE THIS AFTERNOON...Northwest wind less than 10 knots. Cloudy with a chance of showers and a slight chance of thunderstorms. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...North wind 10 to 15 knots veering northeast 15 to 20 knots late. Mostly cloudy with a slight chance of showers through late evening, then mostly clear by midnight. Waves building to 3 to 6 feet occasionally to 8 feet. .SUNDAY...Northeast wind 10 to 20 knots becoming 10 to 15 knots late. Sunny. Waves subsiding to 2 to 3 feet. .SUNDAY NIGHT...East wind 10 to 15 knots veering southeast 10 to 20 knots after midnight. Partly cloudy. A slight chance of showers after midnight. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .MONDAY...Southeast wind 15 to 20 knots. Mostly 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 2 to 3 feet. $$ WFO MQT