643
FZUS53 KMQT 122102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM 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.

LMZ221-130800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH MONDAY MORNING...

.LATE THIS AFTERNOON...South wind 10 to 15 knots. Partly cloudy.
Waves 1 to 2 feet.
.TONIGHT...South wind 10 to 20 knots. Mostly cloudy then becoming
partly cloudy by midnight then becoming mostly cloudy. A slight
chance of showers late. Waves building to 2 to 3 feet.
.MONDAY...South wind 10 to 15 knots veering southwest 5 to
15 knots by late morning. Gusts up to 22 knots. Cloudy through
early afternoon then becoming mostly sunny. A chance of showers
through early afternoon, then a slight chance of showers late.
Waves subsiding to 1 to 2 feet.
.MONDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Waves
1 to 2 feet.
.TUESDAY...North wind 10 to 15 knots. Partly cloudy. Waves 1 to
2 feet.

$$

LMZ248-250-130800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Sun Oct 12 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT
THROUGH MONDAY MORNING...

.LATE THIS AFTERNOON...Southeast wind 10 to 15 knots. Mostly
sunny. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...South wind 10 to 20 knots. Partly cloudy. A slight
chance of showers late. Waves building to 2 to 4 feet.
.MONDAY...South wind 15 to 20 knots veering southwest 10 to
15 knots by late morning, then diminishing to less than 10 knots
late. Mostly cloudy with a chance of showers. Waves subsiding to
1 to 2 feet.
.MONDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Waves
1 to 2 feet.
.TUESDAY...North wind 10 to 15 knots. Partly cloudy. Waves 1 to
2 feet.

$$

LSZ240-241-130800-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 PM EDT Sun Oct 12 2025 /402 PM CDT Sun Oct 12 2025/

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

.LATE THIS AFTERNOON...Southeast wind 15 to 20 knots with gusts
up to 29 knots. Mostly cloudy with a slight chance of showers.
Waves 1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots veering southwest late.
Gusts up to 32 knots. A chance of showers through late evening,
then showers by midnight. A chance of showers late. Waves
building to 2 to 3 feet.
.MONDAY...West wind 15 to 20 knots. Sunny. Waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Mostly clear.
Waves subsiding to 2 to 3 feet.
.TUESDAY...Northwest wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.

$$

LSZ242-243-130800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...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 15 to 20 knots
late. Cloudy. A slight chance of showers through late evening,
then a chance of showers by midnight. Waves building to 2 to
4 feet.
.MONDAY...West wind 15 to 20 knots with gusts up to 32 knots.
Partly cloudy through mid morning then clearing. A slight chance
of showers through mid morning. Waves 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 29 knots. Mostly clear. Waves subsiding to
2 to 4 feet.
.TUESDAY...Northwest wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.

$$

LSZ244-245-130800-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
502 PM EDT Sun Oct 12 2025

...GALE WARNING IN EFFECT THROUGH MONDAY MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.LATE THIS AFTERNOON...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 becoming 15 to 25 knots
late. Gale force gusts up to 35 knots. Cloudy. A slight chance of
showers by midnight. Showers late. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.MONDAY...Southwest wind 15 to 20 knots veering west 15 to
25 knots by late morning. Gusts up to 32 knots. Mostly cloudy
with a chance of showers through mid morning, then sunny by late
morning. 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 29 knots. Mostly clear. Waves subsiding to
3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest wind 10 to 20 knots with gusts up to
28 knots. Partly cloudy. Waves subsiding to 2 to 3 feet.

$$

LSZ246-130800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...Southeast wind 10 to 20 knots with gusts
up to 30 knots. Mostly cloudy. Waves 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 31 knots. Cloudy. A slight chance of
showers through late evening. A chance of showers by midnight,
then showers late. Waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet.
.MONDAY...Southwest wind 10 to 15 knots veering west by late
morning. Gusts up to 26 knots. Mostly cloudy with a chance of
showers through mid morning, then sunny by late morning. 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.
.TUESDAY...Northwest wind 5 to 15 knots with gusts up to
25 knots. Partly cloudy. Waves calm to 1 foot.

$$

LSZ247-130800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...Southeast 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 10 to 15 knots veering south late.
Gusts up to 32 knots. Cloudy. A slight chance of showers through
late evening, then a chance of showers by midnight. Showers late.
Waves building to 2 to 4 feet, then subsiding to 1 to 2 feet.
.MONDAY...Southwest wind 10 to 15 knots veering west 10 to
20 knots by late morning. Mostly cloudy with a chance of showers
through mid morning, then sunny by late morning. Waves building
to 2 to 3 feet.
.MONDAY NIGHT...West wind 10 to 15 knots veering northwest after
midnight. Gusts up to 25 knots. Mostly clear. Waves subsiding to
1 to 2 feet.
.TUESDAY...Northwest wind 5 to 15 knots with gusts up to
23 knots. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ248-130800-
Huron Islands to Marquette MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...Southeast wind 15 to 20 knots with gusts
up to 29 knots. Mostly cloudy. Waves 2 to 4 feet.
.TONIGHT...South wind 15 to 20 knots. Gusts up to 32 knots.
Cloudy. A slight chance of showers by midnight. Showers likely
late. Waves subsiding to 2 to 3 feet.
.MONDAY...Southwest wind 10 to 15 knots veering northwest 10 to
20 knots late. Mostly cloudy through mid morning then clearing.
Showers likely through mid morning, then a slight chance of
showers by late morning. Waves subsiding to 1 to 2 feet, then
building to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
25 knots. Mostly clear. Waves 2 to 3 feet.
.TUESDAY...Northwest wind 10 to 15 knots with gusts up to
23 knots. Partly cloudy. Waves 2 to 3 feet.

$$

LSZ249-130800-
Marquette to Munising MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...South wind 15 to 20 knots. Partly cloudy.
Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...South wind 10 to 20 knots with gusts up to 30 knots.
Mostly cloudy. A chance of showers late. Waves building to 2 to
3 feet, then subsiding to 1 to 2 feet.
.MONDAY...South wind 10 to 15 knots veering southwest less than
10 knots by late morning, then veering north late. Gusts up to
24 knots. Mostly cloudy through early afternoon then clearing.
Showers likely through mid morning, then a chance of showers by
late morning. 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.
.TUESDAY...Northwest wind 10 to 20 knots. Mostly cloudy. Waves
3 to 5 feet occasionally to 7 feet.

$$

LSZ250-130800-
Munising to Grand Marais MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...South wind 15 to 20 knots. Mostly sunny.
Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...South wind 15 to 20 knots. Gusts up to 27 knots.
Partly cloudy through midnight, then mostly cloudy with a chance
of showers late. Waves building to 2 to 3 feet, then subsiding to
1 to 2 feet.
.MONDAY...South wind 10 to 20 knots veering southwest 10 to
15 knots by late morning, then veering northwest less than
10 knots late. Cloudy through early afternoon then becoming
partly cloudy. Showers through early afternoon, then a slight
chance of showers late. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly clear.
Waves building to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest wind 15 to 20 knots. Mostly cloudy. Waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet.

$$

LSZ251-130800-
Grand Marais to Whitefish Point MI-
502 PM EDT Sun Oct 12 2025

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

.LATE THIS AFTERNOON...Southeast wind 15 to 20 knots. Mostly
sunny. Waves 2 to 3 feet building to 2 to 4 feet.
.TONIGHT...Southeast wind 15 to 20 knots veering south late.
Gusts up to 28 knots. Mostly cloudy. A slight chance of showers
late. Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.MONDAY...South wind 10 to 20 knots veering west less than
10 knots late. A chance of showers through mid morning, then
showers likely by late morning. A chance of showers late. 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 4 to
7 feet occasionally to 9 feet.
.TUESDAY...Northwest wind 15 to 25 knots. Mostly cloudy. Waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
4 to 7 feet occasionally to 9 feet.

$$

WFO MQT