Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 100902
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 AM EDT Fri Oct 10 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.

LMZ221-102000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 AM EDT Fri Oct 10 2025

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

.EARLY THIS MORNING...Southwest wind 20 to 25 knots. Cloudy with
a chance of showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...Southwest wind 20 to 25 knots veering northwest 15 to
20 knots late. Cloudy through early afternoon then becoming
partly cloudy. Showers likely through mid morning, then a chance
of showers by late morning. A slight chance of showers late.
Waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet.
.TONIGHT...Northwest wind 15 to 20 knots veering north by
midnight. Mostly cloudy. A slight chance of showers through
midnight. Waves subsiding to 2 to 3 feet.
.SATURDAY...Northeast wind 10 to 15 knots veering east less than
10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to
2 feet.
.SATURDAY NIGHT...East wind 10 to 15 knots veering southeast
after midnight. Mostly clear. Waves calm to 1 foot.

$$

LMZ248-250-102000-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 AM EDT Fri Oct 10 2025

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

.EARLY THIS MORNING...Southwest wind 20 to 25 knots. Mostly
cloudy with a slight chance of showers. Waves 3 to 6 feet
occasionally to 8 feet.
.TODAY...Southwest wind 20 to 25 knots veering northwest 15 to
20 knots late. Showers likely through mid morning, then a chance
of showers by late morning. A slight chance of showers late.
Waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest wind 15 to 20 knots veering north by
midnight. Cloudy. A slight chance of showers through midnight.
Waves subsiding to 2 to 3 feet.
.SATURDAY...Northeast wind 10 to 15 knots veering east less than
10 knots in the afternoon. Partly cloudy. Waves subsiding to 1 to
2 feet.
.SATURDAY NIGHT...East wind 10 to 15 knots veering southeast
after midnight. Mostly clear. Waves calm to 1 foot.

$$

LSZ240-241-102000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 AM EDT Fri Oct 10 2025 /402 AM CDT Fri Oct 10 2025/

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

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 27 knots. Cloudy with a slight chance of showers. Waves 2 to
3 feet.
.TODAY...West wind 15 to 25 knots veering northwest by late
morning. Partly cloudy. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...Northwest wind 15 to 20 knots veering northeast 10 to
15 knots late. Mostly clear. Waves subsiding to 2 to 3 feet.
.SATURDAY...East wind less than 10 knots. Sunny. Waves subsiding
to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south
after midnight. Mostly clear. Waves 1 to 2 feet.

$$

LSZ242-243-102000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 32 knots. Cloudy with a chance of showers. Waves 2 to 4 feet.
.TODAY...West wind 20 to 25 knots veering northwest by late
morning. Gale force gusts up to 38 knots. Mostly cloudy. A chance
of showers through mid morning, then a slight chance of showers
by late morning. Waves building to 4 to 7 feet occasionally to
9 feet.
.TONIGHT...North wind 20 to 25 knots diminishing to 15 to
20 knots by midnight, then veering northeast 10 to 15 knots late.
Gusts up to 33 knots. Mostly cloudy through late evening then
becoming partly cloudy. Waves subsiding to 2 to 4 feet.
.SATURDAY...East wind less than 10 knots with gusts up to
18 knots. Mostly sunny. Waves subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south
after midnight. Gusts up to 22 knots. Mostly clear. Waves calm to
1 foot.

$$

LSZ245-102000-
Manitou Island to Point Isabelle MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 29 knots. Showers likely. Waves 2 to 4 feet.
.TODAY...Southwest wind 15 to 20 knots veering northwest 20 to
25 knots late. Gale force gusts up to 37 knots. Showers likely
through mid morning, then a chance of showers by late morning.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.TONIGHT...North wind 15 to 25 knots veering northeast 10 to
20 knots late. Gusts up to 33 knots. Mostly cloudy. Waves
subsiding to 2 to 4 feet.
.SATURDAY...East wind less than 10 knots veering southeast in the
afternoon. Partly cloudy. Waves subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 20 knots veering south
15 to 20 knots after midnight. Partly cloudy. Waves building to
2 to 4 feet.

$$

LSZ244-102000-
Eagle River to Manitou Island MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 29 knots. Showers likely. Waves 2 to 4 feet.
.TODAY...West wind 15 to 25 knots veering northwest 20 to
25 knots late. Gale force gusts up to 40 knots. Cloudy with a
chance of showers. Waves building to 6 to 9 feet occasionally to
11 feet.
.TONIGHT...North wind 15 to 25 knots veering northeast 10 to
20 knots late. Gusts up to 33 knots. Mostly cloudy. Waves
subsiding to 2 to 4 feet.
.SATURDAY...East wind less than 10 knots veering southeast in the
afternoon. Gusts up to 17 knots. Partly cloudy. Waves subsiding
to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south
15 to 20 knots after midnight. Partly cloudy. Waves building to
2 to 3 feet.

$$

LSZ246-102000-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 32 knots. Cloudy with a chance of showers. Waves 2 to 4 feet.
.TODAY...Southwest wind 15 to 20 knots veering northwest late.
Gale force gusts up to 36 knots. Cloudy with a chance of showers.
Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet.
.TONIGHT...North wind 10 to 20 knots with gusts up to 33 knots
becoming 10 to 15 knots with gusts up to 23 knots late. Mostly
cloudy. Waves subsiding to 1 to 2 feet.
.SATURDAY...East wind less than 10 knots. Gusts up to 19 knots.
Partly cloudy. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south
after midnight. Gusts up to 22 knots. Mostly clear. Waves
building to 2 to 3 feet.

$$

LSZ247-102000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 32 knots. Showers likely. Waves 2 to 3 feet.
.TODAY...Southwest wind 15 to 20 knots veering northwest late.
Gale force gusts up to 36 knots. Cloudy. A chance of showers
through mid morning, then a slight chance of showers by late
morning. A chance of showers late. Waves building to 2 to 4 feet.
.TONIGHT...North wind 15 to 20 knots diminishing to 10 to
15 knots late. Gusts up to 33 knots. Mostly cloudy. A slight
chance of showers through late evening. Waves subsiding to 2 to
3 feet.
.SATURDAY...East wind less than 10 knots with gusts up to
20 knots. Mostly cloudy in the morning then becoming mostly
sunny. Waves subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots veering south
less than 10 knots after midnight. Mostly clear. Waves 1 to
2 feet.

$$

LSZ248-102000-
Huron Islands to Marquette MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 30 knots. Showers likely. Waves 2 to 3 feet.
.TODAY...Southwest wind 15 to 20 knots veering northwest 20 to
25 knots late. Gale force gusts up to 36 knots. Cloudy with a
chance of showers. Waves building to 4 to 7 feet occasionally to
9 feet.
.TONIGHT...North wind 15 to 25 knots diminishing to 10 to
20 knots late. Gusts up to 33 knots. Cloudy. A slight chance of
showers through midnight. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.SATURDAY...Northeast wind less than 10 knots veering east in the
afternoon. Gusts up to 19 knots. Partly cloudy. Waves subsiding
to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

LSZ249-102000-
Marquette to Munising MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...Southwest wind 15 to 20 knots with gusts up
to 28 knots. Cloudy with a chance of showers. Waves 2 to 4 feet.
.TODAY...Southwest wind 15 to 25 knots veering northwest 20 to
25 knots late. Gale force gusts up to 36 knots. Showers through
mid morning, then a chance of showers by late morning. Waves
building to 6 to 9 feet occasionally to 11 feet.
.TONIGHT...Northwest wind 20 to 25 knots veering north 15 to
25 knots by midnight. Gusts up to 32 knots. Cloudy. A chance of
showers through late evening, then a slight chance of showers by
midnight. Waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.SATURDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

LSZ250-102000-
Munising to Grand Marais MI-
502 AM EDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IN EFFECT FROM 11 AM EDT THIS MORNING THROUGH
THIS EVENING...

.EARLY THIS MORNING...South wind 15 to 20 knots with gusts up to
28 knots. Cloudy with a chance of showers. Waves 2 to 3 feet
building to 2 to 4 feet.
.TODAY...South wind 20 to 25 knots veering northwest late. Gale
force gusts up to 36 knots. Showers. Waves building to 6 to
9 feet occasionally to 11 feet.
.TONIGHT...North wind 20 to 25 knots becoming 15 to 25 knots by
midnight. Cloudy. A chance of showers through late evening, then
a slight chance of showers by midnight. Waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.SATURDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

LSZ251-102000-
Grand Marais to Whitefish Point MI-
502 AM EDT Fri Oct 10 2025

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

.EARLY THIS MORNING...South wind 15 to 20 knots. Mostly cloudy
with a slight chance of showers. Waves 2 to 3 feet building to
2 to 4 feet.
.TODAY...South wind 15 to 20 knots veering west late. Gusts up to
32 knots. Showers. Waves building to 5 to 8 feet occasionally to
10 feet.
.TONIGHT...North wind 15 to 20 knots. Gusts up to 28 knots.
Mostly cloudy. A chance of showers through late evening, then a
slight chance of showers by midnight. Waves subsiding to 3 to
5 feet occasionally to 7 feet.
.SATURDAY...Northeast wind 5 to 15 knots. Mostly sunny. Waves
subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

WFO MQT