Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 312102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM EDT Sun Aug 31 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.

LMZ221-010800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...South wind less than 10 knots. Sunny.
Waves calm to 1 foot.
.TONIGHT...South wind less than 10 knots veering southwest late.
Clear. Waves calm to 1 foot.
.MONDAY...Variable wind less than 10 knots becoming south less
than 10 knots by late morning. Sunny. Waves calm to 1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots backing south in the
afternoon. Sunny. Waves calm to 1 foot.

$$

LMZ248-250-010800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...Southwest wind less than 10 knots. Sunny.
Waves calm to 1 foot.
.TONIGHT...South wind less than 10 knots. Clear. Waves calm to
1 foot.
.MONDAY...South wind less than 10 knots. Sunny. Waves calm to
1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots backing south in the
afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ240-241-010800-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 PM EDT Sun Aug 31 2025 /402 PM CDT Sun Aug 31 2025/

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Sunny.
Waves calm to 1 foot.
.TONIGHT...South wind less than 10 knots veering southwest by
midnight. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots through mid morning
becoming variable. Mostly sunny. Waves calm to 1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots becoming
southwest less than 10 knots after midnight. Mostly clear. Waves
calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots. Sunny in the
morning, then partly cloudy with a slight chance of showers and
thunderstorms in the afternoon. Waves calm to 1 foot.

$$

LSZ242-243-010800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Sunny.
Waves calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering southwest
late. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots. Sunny. Waves calm to
1 foot.
.MONDAY NIGHT...South wind less than 10 knots veering southwest
after midnight. Clear. Waves calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots with gusts up to
18 knots. Mostly sunny. Waves calm to 1 foot.

$$

LSZ244-245-010800-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...Southeast wind less than 10 knots. Sunny.
Waves calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering southwest
late. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots backing south late.
Mostly sunny. Waves calm to 1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots becoming
southwest less than 10 knots after midnight. Mostly clear. Waves
calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots backing south in the
afternoon. Mostly sunny. Waves calm to 1 foot.

$$

LSZ246-010800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny. Waves
calm to 1 foot.
.TONIGHT...East wind less than 10 knots through late evening
becoming variable, then becoming southwest less than 10 knots
late. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots backing south late.
Mostly sunny. Isolated showers and thunderstorms late. Waves calm
to 1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots. Gusts up to
12 knots. Mostly clear. Waves calm to 1 foot.
.TUESDAY...Variable wind less than 10 knots. Gusts up to
16 knots. Mostly sunny. Waves calm to 1 foot.

$$

LSZ247-010800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny with
isolated showers. Waves calm to 1 foot.
.TONIGHT...East wind less than 10 knots veering southwest by
midnight. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots backing southeast
late. Sunny through early afternoon then becoming partly cloudy.
Isolated showers and thunderstorms by late morning. Waves calm to
1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots. Gusts up to
12 knots. Mostly clear. Waves calm to 1 foot.
.TUESDAY...Variable wind less than 10 knots. Gusts up to
15 knots. Mostly sunny. Waves calm to 1 foot.

$$

LSZ248-010800-
Huron Islands to Marquette MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny. Waves
calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering southwest
late. Clear. Waves calm to 1 foot.
.MONDAY...Southwest wind less than 10 knots backing southeast by
late morning. Mostly sunny. Isolated showers and thunderstorms by
late morning. Waves calm to 1 foot.
.MONDAY NIGHT...Variable wind less than 10 knots. Gusts up to
12 knots. Clear. Waves calm to 1 foot.
.TUESDAY...Variable wind less than 10 knots. Gusts up to
13 knots. Sunny. Waves calm to 1 foot.

$$

LSZ249-010800-
Marquette to Munising MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny. Waves
calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering south by
midnight. Clear. Waves calm to 1 foot.
.MONDAY...South wind less than 10 knots backing southeast late.
Sunny. Isolated showers and thunderstorms by late morning. Waves
calm to 1 foot.
.MONDAY NIGHT...South wind less than 10 knots veering southwest
after midnight. Clear. Waves calm to 1 foot.
.TUESDAY...Southwest wind less than 10 knots backing south in the
afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ250-010800-
Munising to Grand Marais MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny. Waves
calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering south by
midnight. Clear. Waves calm to 1 foot.
.MONDAY...South wind less than 10 knots veering southwest by late
morning, then backing east late. Sunny. Waves calm to 1 foot.
.MONDAY NIGHT...South wind less than 10 knots. Clear. Waves calm
to 1 foot.
.TUESDAY...South wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ251-010800-
Grand Marais to Whitefish Point MI-
502 PM EDT Sun Aug 31 2025

.LATE THIS AFTERNOON...East wind less than 10 knots. Sunny. Waves
calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots veering south by
midnight. Clear. Waves calm to 1 foot.
.MONDAY...South wind less than 10 knots backing east late. Sunny.
Waves calm to 1 foot.
.MONDAY NIGHT...South wind less than 10 knots. Clear. Waves calm
to 1 foot.
.TUESDAY...South wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

WFO MQT