Nearshore Marine Forecast
Issued by NWS Marquette, MI

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496
FZUS53 KMQT 042102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM EDT Sat Oct 4 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.

LMZ221-050800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to
28 knots. Sunny. Waves 2 to 3 feet building to 2 to 4 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 29 knots.
Clear. Waves subsiding to 2 to 3 feet.
.SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots.
Sunny. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...South wind 15 to 25 knots veering southwest 10 to
20 knots after midnight. Gusts up to 33 knots. Mostly clear with
a chance of showers in the evening, then mostly cloudy with a
chance of showers and a slight chance of thunderstorms after
midnight. Waves subsiding to 2 to 3 feet.
.MONDAY...Northwest wind less than 10 knots veering north in the
afternoon. Cloudy. A chance of showers in the morning, then a
slight chance of showers in the afternoon. Waves subsiding to
1 to 2 feet.

$$

LMZ248-250-050800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to
27 knots. Sunny. Waves 2 to 4 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots.
Clear. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY...South wind 15 to 25 knots with gale force gusts up to
34 knots. Sunny. Waves building to 5 to 8 feet occasionally to
10 feet.
.SUNDAY NIGHT...South wind 20 to 25 knots veering southwest 10 to
20 knots after midnight. Gusts up to 33 knots. Mostly clear with
a chance of showers in the evening, then mostly cloudy with a
chance of showers and a slight chance of thunderstorms after
midnight. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest wind 5 to 15 knots veering north less than
10 knots in the afternoon. Cloudy. A chance of showers in the
morning, then a slight chance of showers in the afternoon. Waves
subsiding to 2 to 3 feet.

$$

LSZ240-241-050800-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 PM EDT Sat Oct 4 2025 /402 PM CDT Sat Oct 4 2025/

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 15 to 20 knots with gusts up to
28 knots. Mostly sunny. Waves 2 to 3 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 32 knots.
Mostly clear. Waves building to 2 to 4 feet.
.SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots.
Sunny through early afternoon then becoming partly cloudy. A
slight chance of showers by late morning. A chance of showers
late. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...Southwest wind 20 to 25 knots veering west 15 to
20 knots after midnight. Partly cloudy. A slight chance of
showers in the evening. Waves 3 to 5 feet occasionally to 7 feet.
.MONDAY...Northwest wind 10 to 15 knots backing west less than
10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to
2 feet.

$$

LSZ242-243-050800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
26 knots. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots.
Mostly clear. Waves building to 2 to 3 feet, then subsiding to
1 to 2 feet.
.SUNDAY...South wind 15 to 25 knots with gale force gusts up to
37 knots. Sunny through early afternoon then becoming partly
cloudy. A chance of showers late. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SUNDAY NIGHT...Southwest wind 20 to 25 knots veering west after
midnight. Gale force gusts up to 36 knots. Mostly cloudy with a
chance of showers in the evening, then partly cloudy after
midnight. Waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet.
.MONDAY...Northwest wind 15 to 20 knots backing west 10 to
15 knots in the afternoon. Partly cloudy. Waves subsiding to 2 to
3 feet.

$$

LSZ245-050800-
Manitou Island to Point Isabelle MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
22 knots. Mostly sunny. Waves 2 to 3 feet.
.TONIGHT...South wind 10 to 20 knots. Partly cloudy. Waves
building to 2 to 4 feet, then subsiding to 2 to 3 feet.
.SUNDAY...South wind 15 to 20 knots with gusts up to 31 knots.
Sunny. A slight chance of showers late. Waves building to 3 to
5 feet occasionally to 7 feet.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west after
midnight. Gusts up to 31 knots. Partly cloudy. A chance of
showers in the evening. Waves subsiding to 2 to 3 feet, then
building to 2 to 4 feet.
.MONDAY...Northwest wind 5 to 15 knots with gusts up to 24 knots.
Partly cloudy. Waves subsiding to 1 to 2 feet.

$$

LSZ244-050800-
Eagle River to Manitou Island MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
23 knots. Mostly sunny. Waves 2 to 3 feet.
.TONIGHT...South wind 10 to 20 knots. Partly cloudy. Waves 2 to
3 feet.
.SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots.
Mostly sunny. A slight chance of showers late. Waves building to
2 to 4 feet.
.SUNDAY NIGHT...Southwest wind 15 to 25 knots veering west 20 to
25 knots after midnight. Gusts up to 33 knots. Partly cloudy. A
chance of showers in the evening. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet.
.MONDAY...Northwest wind 15 to 20 knots backing west 10 to
15 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to
2 feet.

$$

LSZ246-050800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
27 knots. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 20 knots with gusts up to
29 knots. Partly cloudy. Waves building to 2 to 3 feet, then
subsiding to 1 to 2 feet.
.SUNDAY...South wind 10 to 20 knots with gale force gusts up to
34 knots. Sunny. A slight chance of showers late. Waves building
to 2 to 4 feet.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to
20 knots after midnight. Gale force gusts up to 35 knots. Partly
cloudy with a chance of showers in the evening, then mostly
cloudy after midnight. Waves subsiding to 1 to 2 feet.
.MONDAY...Northwest wind 5 to 15 knots with gusts up to 24 knots.
Mostly cloudy. Waves 1 to 2 feet.

$$

LSZ247-050800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...Southwest wind 10 to 15 knots with gusts
up to 27 knots. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 20 knots with gusts up to
29 knots. Mostly clear. Waves building to 2 to 3 feet, then
subsiding to 1 to 2 feet.
.SUNDAY...South wind 15 to 20 knots with gale force gusts up to
34 knots. Sunny. A slight chance of showers late. Waves subsiding
to 1 to 2 feet, then building to 2 to 3 feet.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to
20 knots after midnight. Gale force gusts up to 35 knots. Partly
cloudy with a chance of showers and a slight chance of
thunderstorms in the evening, then mostly cloudy with a slight
chance of showers after midnight. Waves subsiding to 1 to 2 feet.
.MONDAY...Northwest wind 5 to 15 knots with gusts up to 23 knots.
Mostly cloudy. Waves 1 to 2 feet.

$$

LSZ248-050800-
Huron Islands to Marquette MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
23 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 31 knots.
Mostly clear. Waves building to 2 to 3 feet, then subsiding to
1 to 2 feet.
.SUNDAY...South wind 10 to 20 knots with gusts up to 32 knots.
Sunny. A slight chance of showers late. Waves subsiding to 1 to
2 feet, then building to 2 to 3 feet.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots veering west 10 to
15 knots after midnight. Gusts up to 31 knots. Partly cloudy with
a chance of showers and a slight chance of thunderstorms in the
evening, then mostly cloudy with a chance of showers after
midnight. Waves 2 to 3 feet.
.MONDAY...Northwest wind 5 to 15 knots with gusts up to 23 knots.
Mostly cloudy. Waves subsiding to 1 to 2 feet.

$$

LSZ249-050800-
Marquette to Munising MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
23 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots.
Mostly clear. Waves 1 to 2 feet.
.SUNDAY...South wind 15 to 25 knots with gusts up to 33 knots.
Sunny. A slight chance of showers late. Waves building to 2 to
4 feet.
.SUNDAY NIGHT...South wind 15 to 25 knots veering west 10 to
20 knots after midnight. Gusts up to 32 knots. Partly cloudy with
a chance of showers and a slight chance of thunderstorms in the
evening, then showers likely and a slight chance of thunderstorms
after midnight. Waves subsiding to 2 to 3 feet.
.MONDAY...Northwest wind 5 to 15 knots. Mostly cloudy. A slight
chance of showers in the morning. Waves subsiding to 1 to 2 feet.

$$

LSZ250-050800-
Munising to Grand Marais MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH LATE SUNDAY
NIGHT...

.LATE THIS AFTERNOON...South wind 15 to 20 knots. Sunny. Waves
1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots. Mostly clear. Waves
building to 2 to 3 feet, then subsiding to 1 to 2 feet.
.SUNDAY...South wind 15 to 25 knots with gale force gusts up to
35 knots. Sunny. Waves building to 3 to 5 feet occasionally to
7 feet.
.SUNDAY NIGHT...South wind 20 to 25 knots veering west 15 to
25 knots after midnight. Gale force gusts up to 34 knots. Showers
likely and a slight chance of thunderstorms. Waves subsiding to
2 to 4 feet.
.MONDAY...Northwest wind 15 to 20 knots diminishing to 5 to
15 knots in the afternoon. Mostly cloudy. A chance of showers in
the morning. Waves 2 to 4 feet.

$$

LSZ251-050800-
Grand Marais to Whitefish Point MI-
502 PM EDT Sat Oct 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 10 to 15 knots with gusts up to
24 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...South wind 10 to 15 knots with gusts up to 25 knots.
Mostly clear. Waves 1 to 2 feet.
.SUNDAY...South wind 15 to 25 knots with gale force gusts up to
34 knots. Sunny. Waves building to 3 to 5 feet occasionally to
7 feet.
.SUNDAY NIGHT...South wind 20 to 25 knots veering southwest 15 to
25 knots after midnight. Gusts up to 33 knots. Showers and a
slight chance of thunderstorms. Waves subsiding to 2 to 4 feet.
.MONDAY...Northwest wind 10 to 20 knots. Mostly cloudy. A chance
of showers in the morning, then a slight chance of showers in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

$$

WFO MQT