Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 121501
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Nearshore Marine Forecast
National Weather Service Marquette MI
1101 AM EDT Sun Oct 12 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.

LMZ221-122000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

.REST OF TODAY...South wind 10 to 15 knots. Partly cloudy. Waves
2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...South wind 10 to 20 knots. Partly cloudy through
midnight, then mostly cloudy with a chance of showers late. Waves
building to 2 to 3 feet.
.MONDAY...South wind 10 to 15 knots veering southwest less than
10 knots in the afternoon. Cloudy in the morning then becoming
partly cloudy. A chance of showers. Waves subsiding to 1 to
2 feet.
.MONDAY NIGHT...Northwest wind 5 to 15 knots. Mostly clear. Waves
calm to 1 foot.

$$

LMZ248-250-122000-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

.REST OF TODAY...Southeast wind 10 to 15 knots. Partly cloudy.
Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...Southeast wind 10 to 20 knots veering south 15 to
20 knots late. Partly cloudy through midnight then becoming
mostly cloudy. A chance of showers late. Waves building to 2 to
4 feet.
.MONDAY...South wind 10 to 20 knots veering southwest 5 to
15 knots in the afternoon. Mostly cloudy with a chance of
showers. Waves subsiding to 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 15 knots. Partly cloudy.
Waves 1 to 2 feet.

$$

LSZ240-241-122000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
1101 AM EDT Sun Oct 12 2025 /1001 AM CDT Sun Oct 12 2025/

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Southeast wind 15 to 20 knots with gusts up to
29 knots. Mostly cloudy. A slight chance of showers late. Waves
1 to 2 feet building to 2 to 3 feet.
.TONIGHT...South wind 15 to 25 knots veering southwest 15 to
20 knots late. Gusts up to 32 knots. A chance of showers through
late evening, then showers likely by midnight. A chance of
showers late. Waves building to 2 to 4 feet, then subsiding to
2 to 3 feet.
.MONDAY...West wind 10 to 20 knots. Sunny. Waves building to 2 to
4 feet, then subsiding to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Mostly clear.
Waves 2 to 3 feet.

$$

LSZ242-243-122000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Southeast wind 15 to 20 knots with gusts up to
27 knots. Mostly cloudy. Waves 1 to 2 feet.
.TONIGHT...South wind 15 to 25 knots becoming 20 to 25 knots
late. Gusts up to 32 knots. Cloudy. A slight chance of showers
through late evening, then showers by midnight. Waves building to
2 to 4 feet.
.MONDAY...Southwest wind 15 to 20 knots veering west in the
afternoon. Gusts up to 31 knots. Mostly sunny. A slight chance of
showers in the morning. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.MONDAY NIGHT...Northwest wind 15 to 20 knots. Mostly clear.
Waves subsiding to 2 to 4 feet.

$$

LSZ244-245-122000-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 5 PM EDT THIS AFTERNOON THROUGH
MONDAY MORNING...

.REST OF TODAY...Southeast wind 20 to 25 knots with gale force
gusts up to 34 knots. Mostly cloudy. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...South wind 20 to 25 knots diminishing to 15 to
20 knots late. Gale force gusts up to 36 knots. Cloudy. A chance
of showers by midnight. Showers likely late. Waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.MONDAY...Southwest wind 15 to 20 knots veering west in the
afternoon. Gusts up to 31 knots. Partly cloudy with a chance of
showers in the morning, then sunny in the afternoon. Waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet.
.MONDAY NIGHT...West wind 15 to 20 knots veering northwest after
midnight. Gusts up to 27 knots. Mostly clear. Waves subsiding to
3 to 5 feet occasionally to 7 feet.

$$

LSZ246-122000-
Point Isabelle to Lower Entrance of Portage Canal MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Southeast wind 10 to 20 knots with gusts up to
30 knots. Mostly cloudy. Waves 2 to 4 feet building to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south 10 to
15 knots late. Gusts up to 32 knots. Cloudy. A slight chance of
showers through late evening, then showers likely by midnight.
Waves subsiding to 2 to 3 feet.
.MONDAY...Southwest wind 10 to 15 knots veering west in the
afternoon. Gusts up to 26 knots. Partly cloudy with a chance of
showers in the morning, then sunny in the afternoon. Waves
subsiding to 1 to 2 feet.
.MONDAY NIGHT...West wind 10 to 15 knots veering northwest after
midnight. Gusts up to 25 knots. Mostly clear. Waves 1 to 2 feet.

$$

LSZ247-122000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...South wind 10 to 15 knots with gusts up to
26 knots. Mostly cloudy. Waves 1 to 2 feet building to 2 to
3 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south 10 to
20 knots by midnight. Gusts up to 31 knots. Cloudy. A slight
chance of showers through late evening, then showers likely by
midnight. Waves subsiding to 1 to 2 feet.
.MONDAY...Southwest wind 10 to 15 knots veering west in the
afternoon. Gusts up to 25 knots. Partly cloudy with a chance of
showers in the morning, then sunny in the afternoon. Waves 1 to
2 feet.
.MONDAY NIGHT...West wind 10 to 15 knots veering northwest after
midnight. Gusts up to 24 knots. Mostly clear. Waves 1 to 2 feet.

$$

LSZ248-122000-
Huron Islands to Marquette MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Southeast wind 15 to 20 knots with gusts up to
29 knots. Partly cloudy. Waves 2 to 3 feet building to 2 to
4 feet.
.TONIGHT...South wind 15 to 20 knots becoming 10 to 20 knots
late. Gusts up to 31 knots. Mostly cloudy. A chance of showers by
midnight. Showers likely late. Waves subsiding to 1 to 2 feet.
.MONDAY...Southwest wind 10 to 15 knots veering west in the
afternoon. Gusts up to 25 knots. Mostly cloudy with showers
likely in the morning, then sunny with a slight chance of showers
in the afternoon. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
24 knots. Mostly clear. Waves building to 2 to 3 feet.

$$

LSZ249-122000-
Marquette to Munising MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...South wind 15 to 20 knots. Partly cloudy. Waves
1 to 2 feet building to 2 to 3 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 27 knots.
Partly cloudy through late evening, then a slight chance of
showers by midnight. Cloudy with a chance of showers late. Waves
subsiding to 1 to 2 feet, then building to 2 to 3 feet.
.MONDAY...South wind 5 to 15 knots veering west less than
10 knots in the afternoon. Gusts up to 22 knots. Cloudy with
showers likely in the morning, then mostly sunny with a chance of
showers in the afternoon. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly clear.
Waves building to 3 to 5 feet occasionally to 7 feet.

$$

LSZ250-122000-
Munising to Grand Marais MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...South wind 15 to 20 knots. Partly cloudy. Waves
1 to 2 feet building to 2 to 3 feet, then subsiding to 1 to
2 feet.
.TONIGHT...South wind 15 to 20 knots with gusts up to 28 knots.
Partly cloudy through late evening, then mostly cloudy with a
slight chance of showers by midnight. Waves building to 2 to
3 feet.
.MONDAY...South wind 10 to 20 knots veering west less than
10 knots in the afternoon. Showers. Waves subsiding to 1 to
2 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly clear. A
slight chance of showers in the evening. Waves building to 3 to
6 feet occasionally to 8 feet.

$$

LSZ251-122000-
Grand Marais to Whitefish Point MI-
1101 AM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Southeast wind 15 to 20 knots. Partly cloudy.
Waves 2 to 3 feet.
.TONIGHT...Southeast wind 15 to 20 knots. Partly cloudy through
midnight, then mostly cloudy with a chance of showers late. Waves
building to 2 to 4 feet, then subsiding to 2 to 3 feet.
.MONDAY...South wind 10 to 20 knots veering southwest 10 to
15 knots in the afternoon. Showers likely. Waves subsiding to
1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. A
slight chance of showers in the evening. Waves building to 3 to
6 feet occasionally to 8 feet.

$$

WFO MQT