747 FZUS53 KMQT 092103 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 503 PM EDT Thu Jul 9 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. LMZ221-100800- Green Bay North of line from Cedar River MI to Rock Island Passage- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable wind less than 10 knots. Sunny. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .FRIDAY...North wind less than 10 knots through mid morning becoming variable, then becoming south less than 10 knots late. Mostly sunny. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots. Mostly clear. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots veering south in the afternoon. Sunny. Waves calm to 1 foot. $$ LMZ248-250-100800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Southwest wind less than 10 knots. Sunny. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Clear. Waves calm to 1 foot. .FRIDAY...North wind less than 10 knots through mid morning becoming variable. Sunny. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots. Clear. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots veering south in the afternoon. Sunny. Waves calm to 1 foot. $$ LSZ240-241-100800- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 503 PM EDT Thu Jul 9 2026 /403 PM CDT Thu Jul 9 2026/ .LATE THIS AFTERNOON...Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy through late evening then becoming mostly cloudy. Patchy fog by midnight. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots. Partly cloudy. A slight chance of showers and thunderstorms after midnight. Waves calm to 1 foot. .SATURDAY...Variable wind less than 10 knots. Mostly sunny. Waves calm to 1 foot. $$ LSZ242-243-100800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy through late evening then becoming mostly cloudy. Patchy fog by midnight. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots becoming northeast less than 10 knots late. Mostly sunny. Patchy dense fog through mid morning. Waves calm to 1 foot. .FRIDAY NIGHT...Southeast wind less than 10 knots veering south after midnight. Partly cloudy. A slight chance of showers and thunderstorms after midnight. Waves calm to 1 foot. .SATURDAY...Southwest wind less than 10 knots in the morning becoming variable. Mostly sunny. Waves calm to 1 foot. $$ LSZ244-245-100800- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy through late evening then becoming mostly cloudy. Patchy fog late. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots becoming southeast less than 10 knots by late morning. Partly cloudy. Patchy dense fog through mid morning. Waves calm to 1 foot. .FRIDAY NIGHT...Southeast wind less than 10 knots. Partly cloudy in the evening, then mostly cloudy with aslight chance of showers and thunderstorms after midnight. Waves calm to 1 foot. .SATURDAY...South wind less than 10 knots backing southeast in the afternoon. Mostly sunny. Waves calm to 1 foot. $$ LSZ246-100800- Point Isabelle to Lower Entrance of Portage Canal MI- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...East wind less than 10 knots. Mostly sunny. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy through midnight then becoming mostly cloudy. Patchy fog by midnight. Waves calm to 1 foot. .FRIDAY...East wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .FRIDAY NIGHT...East wind less than 10 knots veering southeast after midnight. Partly cloudy. A slight chance of showers and thunderstorms after midnight. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots backing east in the afternoon. Mostly sunny. Waves calm to 1 foot. $$ LSZ247-100800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Northeast wind less than 10 knots. Sunny. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy. Patchy fog by midnight. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots becoming east less than 10 knots by late morning. Partly cloudy through early afternoon then clearing. Waves calm to 1 foot. .FRIDAY NIGHT...East wind less than 10 knots in the evening becoming variable. Partly cloudy. A slight chance of showers and thunderstorms after midnight. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots backing east in the afternoon. Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Waves calm to 1 foot. $$ LSZ248-100800- Huron Islands to Marquette MI- 503 PM EDT Thu Jul 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... .LATE THIS AFTERNOON...Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Partly cloudy through late evening then becoming mostly cloudy. Areas of dense fog late. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots becoming east less than 10 knots by late morning. Mostly sunny. Waves calm to 1 foot. .FRIDAY NIGHT...Southeast wind less than 10 knots veering south after midnight. Mostly clear. A slight chance of showers after midnight. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots backing east in the afternoon. Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Waves calm to 1 foot. $$ LSZ249-100800- Marquette to Munising MI- 503 PM EDT Thu Jul 9 2026 .LATE THIS AFTERNOON...Variable wind less than 10 knots. Partly cloudy. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Mostly cloudy. Areas of dense fog by midnight. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots. Mostly sunny. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots becoming south less than 10 knots after midnight. Mostly clear. Waves calm to 1 foot. .SATURDAY...Southeast wind less than 10 knots backing east in the afternoon. Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Waves calm to 1 foot. $$ LSZ250-100800- Munising to Grand Marais MI- 503 PM EDT Thu Jul 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... .LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly cloudy. Waves calm to 1 foot. .TONIGHT...Variable wind less than 10 knots. Cloudy. Areas of dense fog. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots. Partly cloudy. Areas of dense fog through mid morning. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots. Partlycloudy. Waves calm to 1 foot. .SATURDAY...Variable wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ LSZ251-100800- Grand Marais to Whitefish Point MI- 503 PM EDT Thu Jul 9 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT FRIDAY... .LATE THIS AFTERNOON...Northwest wind less than 10 knots. Mostly cloudy. Waves calm to 1 foot. .TONIGHT...Northwest wind less than 10 knots. Cloudy. Areas of dense fog through the night. Waves calm to 1 foot. .FRIDAY...Northwest wind less than 10 knots. Partly cloudy. Patchy dense fog through mid morning. Waves calm to 1 foot. .FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves calm to 1 foot. .SATURDAY...Variable wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ WFO MQT