Nearshore Marine Forecast
Issued by NWS Marquette, MI

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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