Nearshore Marine Forecast
Issued by NWS Marquette, MI

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069
FZUS53 KMQT 241501
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
1101 AM EDT Sun Aug 24 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.

LMZ221-242000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1101 AM EDT Sun Aug 24 2025

...Small craft should exercise caution from this afternoon
through late tonight...

.REST OF TODAY...Northwest wind 10 to 20 knots. Mostly cloudy
with scattered showers. A chance of waterspouts. Waves 1 to
2 feet building to 2 to 4 feet.
.TONIGHT...Northwest wind 10 to 20 knots. A slight chance of
waterspouts through midnight. Mostly cloudy with isolated showers
through late evening, then mostly cloudy with scattered sprinkles
by midnight. Partly cloudy late. Waves subsiding to 2 to 3 feet.
.MONDAY...Northwest wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots diminishing to less
than 10 knots after midnight. Clear. Waves 1 to 2 feet.

$$

LMZ250-242000-
5NM East of a line from Fairport MI to Rock Island Passage-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 PM EDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Partly cloudy
with scattered showers. A chance of waterspouts. Waves 1 to
2 feet building to 2 to 3 feet, then subsiding to 1 to 2 feet.
.TONIGHT...Northwest wind 15 to 25 knots. Mostly cloudy with
scattered showers through midnight, then partly cloudy with
scattered sprinkles late. A chance of waterspouts through late
evening. A slight chance of waterspouts by midnight. Waves
subsiding to 2 to 3 feet.
.MONDAY...Northwest wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 15 knots. Clear. Waves 1 to
2 feet.

$$

LMZ248-242000-
Seul Choix Point to Point Detour MI-
1101 AM EDT Sun Aug 24 2025

.REST OF TODAY...Northwest wind 10 to 20 knots. Mostly cloudy
with scattered showers. A chance of waterspouts. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 10 to 20 knots. Mostly cloudy with
scattered showers through midnight, then partly cloudy with
scattered sprinkles late. A chance of waterspouts through late
evening. A slight chance of waterspouts by midnight. Waves 1 to
2 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts up to
22 knots. Partly cloudy. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 15 knots. Mostly clear. Waves
1 to 2 feet.

$$

LSZ240-242000-
Saxon Harbor WI to Black River MI-
1101 AM EDT Sun Aug 24 2025 /1001 AM CDT Sun Aug 24 2025/

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING...

.REST OF TODAY...Northwest wind 15 to 25 knots. Cloudy. Scattered
showers by late morning, then isolated showers late. A chance of
waterspouts through the day. Waves 3 to 6 feet occasionally to
8 feet subsiding to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...Northwest wind 15 to 20 knots. Mostly cloudy through
late evening then becoming partly cloudy. Scattered sprinkles
through late evening. A slight chance of waterspouts by midnight.
Waves subsiding to 2 to 4 feet.
.MONDAY...Northwest wind 10 to 15 knots becoming 5 to 15 knots in
the afternoon. Sunny. Waves subsiding to 1 to 2 feet.
.MONDAY NIGHT...Northwest wind less than 10 knots. Mostly clear.
Waves calm to 1 foot.

$$

LSZ241-242000-
Black River to Ontonagon MI-
1101 AM EDT Sun Aug 24 2025 /1001 AM CDT Sun Aug 24 2025/

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

.REST OF TODAY...Northwest wind 15 to 25 knots. Cloudy with
scattered showers. A chance of waterspouts. Waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet.
.TONIGHT...Northwest wind 15 to 20 knots. Mostly cloudy through
late evening then becoming partly cloudy. Scattered showers
through late evening, then scattered sprinkles by midnight. A
slight chance of waterspouts through midnight. Waves subsiding to
3 to 5 feet occasionally to 7 feet.
.MONDAY...Northwest wind 10 to 15 knots. Mostly sunny. Waves
subsiding to 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

LSZ242-243-242000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
1101 AM EDT Sun Aug 24 2025

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

.REST OF TODAY...Northwest wind 15 to 20 knots with gusts up to
28 knots. Cloudy with scattered showers. A chance of waterspouts.
Waves 3 to 6 feet occasionally to 8 feet 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. Mostly cloudy.
Scattered showers through late evening, then scattered sprinkles
by midnight. A slight chance of waterspouts through midnight.
Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.MONDAY...Northwest wind 15 to 20 knots diminishing to 10 to
15 knots in the afternoon. Mostly sunny. Waves subsiding to 1 to
2 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Mostly clear.
Waves 1 to 2 feet.

$$

LSZ245-242000-
Manitou Island to Point Isabelle MI-
1101 AM EDT Sun Aug 24 2025

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

.REST OF TODAY...Northwest wind 15 to 25 knots. Cloudy with
scattered showers. A chance of waterspouts by late morning. A
slight chance of waterspouts late. Waves 3 to 5 feet occasionally
to 7 feet building to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest wind 15 to 25 knots. Mostly cloudy. A slight
chance of waterspouts through midnight. Scattered sprinkles
through midnight. Waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts up to
24 knots. Partly cloudy in the morning then clearing. Waves
subsiding to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind less than 10 knots with gusts up
to 18 knots. Mostly clear. Waves subsiding to 1 to 2 feet.

$$

LSZ244-242000-
Eagle River to Manitou Island MI-
1101 AM EDT Sun Aug 24 2025

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

.REST OF TODAY...Northwest wind 20 to 25 knots. Cloudy with
scattered showers. A slight chance of waterspouts. Waves 3 to
6 feet occasionally to 8 feet building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...Northwest wind 20 to 25 knots. Mostly cloudy. A slight
chance of waterspouts through late evening. Scattered sprinkles
through midnight. Waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest wind 10 to 20 knots. Partly cloudy in the
morning then clearing. Waves subsiding to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind 5 to 15 knots. Mostly clear. Waves
subsiding to 1 to 2 feet.

$$

LSZ246-242000-
Point Isabelle to Lower Entrance of Portage Canal MI-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots with gusts up to
27 knots. Cloudy with scattered showers. A chance of waterspouts.
Waves 1 to 2 feet.
.TONIGHT...Northwest wind 10 to 20 knots. Mostly cloudy through
midnight then becoming partly cloudy. A slight chance of
waterspouts through midnight. Scattered sprinkles through
midnight. Waves 1 to 2 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts up to
25 knots. Partly cloudy in the morning then clearing. Waves calm
to 1 foot.
.MONDAY NIGHT...Northwest wind less than 10 knots with gusts up
to 19 knots. Mostly clear. Waves calm to 1 foot.

$$

LSZ247-242000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots with gusts up to
28 knots. Cloudy with scattered showers. A chance of waterspouts.
Waves 2 to 3 feet building to 2 to 4 feet.
.TONIGHT...Northwest wind 10 to 20 knots. Mostly cloudy through
midnight then becoming partly cloudy. Scattered showers through
late evening, then scattered sprinkles by midnight. A slight
chance of waterspouts through midnight. Waves subsiding to 1 to
2 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts up to
25 knots. Mostly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...West wind less than 10 knots with gusts up to
19 knots. Clear. Waves calm to 1 foot.

$$

LSZ248-242000-
Huron Islands to Marquette MI-
1101 AM EDT Sun Aug 24 2025

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

.REST OF TODAY...Northwest wind 15 to 25 knots. Cloudy. Scattered
showers by late morning, then numerous showers late. A chance of
waterspouts through the day. Waves 3 to 5 feet occasionally to
7 feet building to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest wind 15 to 25 knots. Mostly cloudy.
Scattered showers through midnight, then scattered sprinkles
late. A chance of waterspouts through late evening. A slight
chance of waterspouts by midnight. Waves 3 to 6 feet occasionally
to 8 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts up to
24 knots. Mostly sunny. Scattered sprinkles in the morning. Waves
subsiding to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind less than 10 knots with gusts up
to 19 knots. Mostly clear. Waves subsiding to 1 to 2 feet.

$$

LSZ249-242000-
Marquette to Munising MI-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

.REST OF TODAY...Northwest wind 15 to 25 knots. Mostly cloudy.
Scattered showers by late morning, then numerous showers late. A
chance of waterspouts through the day. Waves 3 to 6 feet
occasionally to 8 feet building to 5 to 8 feet occasionally to
10 feet.
.TONIGHT...Northwest wind 15 to 25 knots. Mostly cloudy with
scattered showers. A chance of waterspouts through late evening.
A slight chance of waterspouts by midnight. Waves subsiding to
4 to 7 feet occasionally to 9 feet.
.MONDAY...Northwest wind 15 to 20 knots. Partly cloudy. Scattered
sprinkles in the morning. Waves subsiding to 3 to 5 feet
occasionally to 7 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.

$$

LSZ250-242000-
Munising to Grand Marais MI-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

.REST OF TODAY...Northwest wind 15 to 25 knots. Mostly cloudy.
Scattered showers by late morning, then numerous showers late. A
chance of waterspouts through the day. Waves 3 to 6 feet
occasionally to 8 feet building to 5 to 8 feet occasionally to
10 feet.
.TONIGHT...Northwest wind 15 to 25 knots. Mostly cloudy with
scattered showers. A chance of waterspouts through late evening.
A slight chance of waterspouts by midnight. Waves building to
6 to 9 feet occasionally to 11 feet, then subsiding to 5 to
8 feet occasionally to 10 feet.
.MONDAY...Northwest wind 15 to 20 knots. Partly cloudy. Waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly clear.
Waves subsiding to 2 to 3 feet.

$$

LSZ251-242000-
Grand Marais to Whitefish Point MI-
1101 AM EDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

.REST OF TODAY...Northwest wind 15 to 20 knots. Mostly cloudy
with scattered showers. A chance of waterspouts. Waves 3 to
6 feet occasionally to 8 feet building to 5 to 8 feet
occasionally to 10 feet.
.TONIGHT...Northwest wind 20 to 25 knots. Cloudy with scattered
showers. A chance of waterspouts through late evening. A slight
chance of waterspouts by midnight. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.MONDAY...Northwest wind 15 to 25 knots. Partly cloudy. Scattered
sprinkles in the morning. Waves subsiding to 4 to 7 feet
occasionally to 9 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly clear.
Waves subsiding to 2 to 3 feet.

$$

WFO MQT