


Nearshore Marine Forecast
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
668 FZUS53 KMQT 302103 NSHMQT Nearshore Marine Forecast National Weather Service Marquette MI 503 PM EDT Wed Jul 30 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. LMZ221-310800- Green Bay North of line from Cedar River MI to Rock Island Passage- 503 PM EDT Wed Jul 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .LATE THIS AFTERNOON...Northeast wind 10 to 15 knots. Mostly cloudy. Areas of smoke. Waves calm to 1 foot building to 1 to 2 feet. .TONIGHT...North wind 10 to 20 knots. Mostly clear. Areas of smoke. Waves building to 2 to 3 feet. .THURSDAY...Northeast wind 10 to 15 knots becoming 5 to 15 knots by late morning. Mostly sunny. Areas of smoke. Waves subsiding to 1 to 2 feet. .THURSDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...North wind less than 10 knots backing south in the afternoon. Sunny. Waves calm to 1 foot. $$ LMZ248-250-310800- Seul Choix Point to Point Detour MI- 5NM East of a line from Fairport MI to Rock Island Passage- 503 PM EDT Wed Jul 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .LATE THIS AFTERNOON...North wind 10 to 15 knots. Mostly cloudy. Areas of smoke. Waves calm to 1 foot. .TONIGHT...North wind 10 to 20 knots. Mostly clear. Areas of smoke. Waves building to 2 to 3 feet. .THURSDAY...Northeast wind 10 to 15 knots diminishing to less than 10 knots late. Mostly sunny. Areas of smoke through the day. Haze late. Waves subsiding to 1 to 2 feet. .THURSDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Haze and areas of smoke. Waves calm to 1 foot. .FRIDAY...North wind less than 10 knots backing southwest in the afternoon. Sunny. Waves calm to 1 foot. $$ LSZ240-241-310800- Saxon Harbor WI to Black River MI- Black River to Ontonagon MI- 503 PM EDT Wed Jul 30 2025 /403 PM CDT Wed Jul 30 2025/ .LATE THIS AFTERNOON...East wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...East wind less than 10 knots through late evening becoming variable. Mostly clear. Areas of smoke. Waves calm to 1 foot. .THURSDAY...Variable wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .THURSDAY NIGHT...Variable wind less than 10 knots becoming southwest less than 10 knots after midnight. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...West wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ LSZ242-243-310800- Ontonagon to Upper Entrance of Portage Canal MI- Upper Entrance of Portage Canal to Eagle River MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...Northeast wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots. Mostly clear. Areas of smoke through the night. Haze late. Waves calm to 1 foot. .THURSDAY...Variable wind less than 10 knots becoming north less than 10 knots by late morning. Mostly sunny. Haze through early afternoon. Areas of smoke through the day. Waves calm to 1 foot. .THURSDAY NIGHT...Southwest wind less than 10 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...Southwest wind 10 to 15 knots. Sunny. Waves building to 1 to 2 feet. $$ LSZ244-245-310800- Eagle River to Manitou Island MI- Manitou Island to Point Isabelle MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...North wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots. Mostly clear. Areas of smoke through the night. Haze late. Waves calm to 1 foot. .THURSDAY...Variable wind less than 10 knots. Mostly sunny. Haze and areas of smoke. Waves calm to 1 foot. .THURSDAY NIGHT...Southwest wind less than 10 knots. Mostly clear. Haze in the evening. Areas of smoke through the night. Waves calm to 1 foot. .FRIDAY...West wind 10 to 15 knots. Sunny. Waves building to 1 to 2 feet. $$ LSZ246-310800- Point Isabelle to Lower Entrance of Portage Canal MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...Northeast wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots backing north by midnight. Mostly clear. Areas of smoke. Waves calm to 1 foot. .THURSDAY...Variable wind less than 10 knots becoming east less than 10 knots by late morning. Mostly sunny. Haze through early afternoon. Areas of smoke through the day. Waves calm to 1 foot. .THURSDAY NIGHT...Southwest wind less than 10 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...West wind less than 10 knots with gusts up to 18 knots. Sunny. Waves calm to 1 foot. $$ LSZ247-310800- Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...East wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...Northeast wind less than 10 knots through late evening becoming variable. Mostly clear. Areas of smoke. Waves calm to 1 foot. .THURSDAY...Variable wind less than 10 knots becoming northeast less than 10 knots by late morning. Mostly sunny. Areas of smoke through the day. Haze by late morning. Waves calm to 1 foot. .THURSDAY NIGHT...Variable wind less than 10 knots becoming southwest less than 10 knots after midnight. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...West wind less than 10 knots. Gusts up to 17 knots. Sunny. Waves calm to 1 foot. $$ LSZ248-310800- Huron Islands to Marquette MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...Northeast wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots backing northwest late. Mostly clear. Areas of smoke. Waves calm to 1 foot. .THURSDAY...Northwest wind less than 10 knots veering northeast by late morning. Mostly sunny. Areas of smoke through the day. Haze late. Waves calm to 1 foot. .THURSDAY NIGHT...Variable wind less than 10 knots. Gusts up to 12 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...West wind less than 10 knots veering northwest in the afternoon. Sunny. Waves calm to 1 foot. $$ LSZ249-310800- Marquette to Munising MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...North wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...North wind 5 to 15 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .THURSDAY...North wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .THURSDAY NIGHT...Variable wind less than 10 knots. Mostly clear. Areas of smoke. Waves calm to 1 foot. .FRIDAY...Variable wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ LSZ250-310800- Munising to Grand Marais MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...Northwest wind less than 10 knots. Mostly sunny. Areas of smoke. Waves calm to 1 foot. .TONIGHT...North wind less than 10 knots veering northeast late. Mostly clear. Areas of smoke. Waves building to 1 to 2 feet. .THURSDAY...Northeast wind less than 10 knots backing north by late morning. Mostly sunny. Areas of smoke through the day. Haze by late morning. Waves calm to 1 foot. .THURSDAY NIGHT...Northwest wind less than 10 knots in the evening becoming variable. Mostly clear. Haze and areas of smoke. Waves calm to 1 foot. .FRIDAY...West wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ LSZ251-310800- Grand Marais to Whitefish Point MI- 503 PM EDT Wed Jul 30 2025 .LATE THIS AFTERNOON...Northwest wind 10 to 15 knots. Mostly sunny. Areas of smoke. Waves 1 to 2 feet. .TONIGHT...Northwest wind 10 to 15 knots veering northeast less than 10 knots late. Mostly clear. Areas of smoke. Waves 1 to 2 feet. .THURSDAY...Northeast wind less than 10 knots backing northwest late. Mostly sunny. Haze and areas of smoke. Waves building to 1 to 2 feet. .THURSDAY NIGHT...Northwest wind less than 10 knots. Mostly clear. Haze and areas of smoke. Waves 1 to 2 feet. .FRIDAY...West wind less than 10 knots. Sunny. Waves calm to 1 foot. $$ WFO MQT