290
FZUS53 KMQT 272102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM EDT Wed Aug 27 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.

LMZ221-280800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Wed Aug 27 2025

.LATE THIS AFTERNOON...Southwest wind 10 to 15 knots. Cloudy with
a chance of showers and a slight chance of thunderstorms. Waves
1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots veering north 10 to 20 knots
late. Cloudy. Showers likely and a chance of thunderstorms
through late evening, then a chance of showers and a slight
chance of thunderstorms by midnight. A slight chance of showers
late. Waves building to 2 to 3 feet.
.THURSDAY...North wind 15 to 20 knots. Mostly cloudy through mid
morning then clearing. Waves building to 2 to 4 feet, then
subsiding to 2 to 3 feet.
.THURSDAY NIGHT...North wind 10 to 20 knots. Mostly clear. Waves
subsiding to 1 to 2 feet.
.FRIDAY...Northeast wind less than 10 knots in the morning
becoming variable. Mostly sunny. Waves calm to 1 foot.

$$

LMZ248-250-280800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Wed Aug 27 2025

.LATE THIS AFTERNOON...Southwest wind 10 to 15 knots. Cloudy with
a chance of showers and a slight chance of thunderstorms. Waves
2 to 3 feet.
.TONIGHT...West wind 10 to 15 knots veering north 10 to 20 knots
late. Cloudy. Showers likely and a chance of thunderstorms
through late evening, then a chance of showers and a slight
chance of thunderstorms by midnight. Waves subsiding to 1 to
2 feet, then building to 2 to 3 feet.
.THURSDAY...North wind 15 to 20 knots. Mostly cloudy through mid
morning then becoming mostly sunny. Waves building to 2 to
4 feet, then subsiding to 2 to 3 feet.
.THURSDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Waves
subsiding to 1 to 2 feet.
.FRIDAY...North wind less than 10 knots backing west in the
afternoon. Mostly sunny. Waves calm to 1 foot.

$$

LSZ240-280800-
Saxon Harbor WI to Black River MI-
502 PM EDT Wed Aug 27 2025 /402 PM CDT Wed Aug 27 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT /1 AM CDT/
THURSDAY THROUGH THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots. Cloudy with a
chance of showers and a slight chance of thunderstorms. Waves
1 to 2 feet.
.TONIGHT...West wind 5 to 15 knots veering northwest 10 to
20 knots by midnight, then veering northeast 15 to 20 knots late.
Cloudy. A chance of showers and a slight chance of thunderstorms
through late evening, then a chance of showers by midnight. Waves
building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...East wind less than 10 knots in the evening
becoming variable. Clear. Waves subsiding to 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ241-280800-
Black River to Ontonagon MI-
502 PM EDT Wed Aug 27 2025 /402 PM CDT Wed Aug 27 2025/

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT /5 PM CDT/ THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT /1 AM CDT/
THURSDAY THROUGH THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots. Showers likely
and a slight chance of thunderstorms. Waves 2 to 3 feet.
.TONIGHT...West wind 10 to 15 knots veering north 15 to 25 knots
by midnight, then veering northeast 15 to 20 knots late. Mostly
cloudy. A chance of showers and a slight chance of thunderstorms
through midnight. Waves subsiding to 1 to 2 feet, then building
to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...East wind 5 to 15 knots veering south less than
10 knots after midnight. Clear. Waves subsiding to 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ243-280800-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Wed Aug 27 2025

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

.LATE THIS AFTERNOON...West wind 15 to 20 knots with gusts up to
30 knots. Showers likely and a slight chance of thunderstorms.
Waves 5 to 8 feet occasionally to 10 feet subsiding to 4 to
7 feet occasionally to 9 feet.
.TONIGHT...Northwest wind 15 to 20 knots veering northeast by
midnight. Cloudy through midnight then becoming partly cloudy. A
chance of showers and a slight chance of thunderstorms through
late evening, then a slight chance of showers by midnight. Waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...East wind less than 10 knots in the evening
becoming variable. Mostly clear. Waves subsiding to 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 12 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ242-280800-
Ontonagon to Upper Entrance of Portage Canal MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 15 to 20 knots with gusts up to
30 knots. Showers likely and a chance of thunderstorms. Waves
4 to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...West wind 10 to 15 knots veering north 15 to 20 knots
by midnight, then veering northeast late. Cloudy through midnight
then becoming partly cloudy. A chance of showers and a slight
chance of thunderstorms through midnight. Waves subsiding to 2 to
3 feet, then building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...East wind less than 10 knots in the evening
becoming variable. Mostly clear. Waves subsiding to 1 to 2 feet.
.FRIDAY...Southwest wind less than 10 knots in the morning
becoming variable. Sunny. Waves calm to 1 foot.

$$

LSZ245-280800-
Manitou Island to Point Isabelle MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 15 to 20 knots with gusts up to
27 knots. Cloudy with a chance of showers and a slight chance of
thunderstorms. Waves 2 to 4 feet.
.TONIGHT...Northwest wind 10 to 15 knots veering northeast 15 to
25 knots by midnight. Cloudy through midnight then becoming
partly cloudy. A chance of showers through late evening, then a
slight chance of showers by midnight. Waves subsiding to 2 to
3 feet, then building to 5 to 8 feet occasionally to 10 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots in the
evening becoming variable. Mostly clear. Waves subsiding to 1 to
2 feet.
.FRIDAY...Variable wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ244-280800-
Eagle River to Manitou Island MI-
502 PM EDT Wed Aug 27 2025

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

.LATE THIS AFTERNOON...West wind 20 to 25 knots. Cloudy with a
chance of showers and a slight chance of thunderstorms. Waves
5 to 8 feet occasionally to 10 feet subsiding to 4 to 7 feet
occasionally to 9 feet.
.TONIGHT...Northwest wind 15 to 20 knots veering northeast 15 to
25 knots by midnight. Mostly cloudy through midnight then
becoming partly 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, then building to 4 to 7 feet
occasionally to 9 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots in the
evening becoming variable. Mostly clear. Waves subsiding to 1 to
2 feet.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 12 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ246-280800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots with gusts up to
28 knots. Cloudy with a chance of showers and a slight chance of
thunderstorms. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots veering northeast 15 to
20 knots late. Cloudy through midnight then becoming partly
cloudy. A chance of showers and a slight chance of thunderstorms
through late evening, then a chance of showers by midnight. Waves
building to 2 to 4 feet.
.THURSDAY...Northeast wind 10 to 15 knots with gusts up to
24 knots. Partly cloudy. Waves subsiding to 2 to 3 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots in the
evening becoming variable. Partly cloudy. Waves subsiding to 1 to
2 feet.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 12 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ247-280800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots with gusts up to
29 knots. Showers likely and a slight chance of thunderstorms.
Waves 2 to 3 feet.
.TONIGHT...West wind 10 to 15 knots veering north 15 to 25 knots
by midnight, then veering northeast 15 to 20 knots late. Cloudy.
A chance of showers and a slight chance of thunderstorms through
late evening, then a chance of showers by midnight. Waves
subsiding to 1 to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...Northeast wind 10 to 20 knots. Partly cloudy. Waves
subsiding to 2 to 4 feet.
.THURSDAY NIGHT...East wind less than 10 knots in the evening
becoming variable. Partly cloudy. Waves subsiding to 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 13 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ248-280800-
Huron Islands to Marquette MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 15 to 20 knots with gusts up to
28 knots. Showers likely and a slight chance of thunderstorms.
Waves 2 to 3 feet.
.TONIGHT...West wind 10 to 20 knots veering north 15 to 25 knots
by midnight, then veering northeast 20 to 25 knots late. Cloudy.
A chance of showers and a slight chance of thunderstorms through
late evening, then a chance of showers by midnight. Waves
subsiding to 1 to 2 feet, then building to 5 to 8 feet
occasionally to 10 feet.
.THURSDAY...North wind 15 to 25 knots. Partly cloudy. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots in the
evening becoming variable. Partly cloudy. Waves subsiding to 1 to
2 feet.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 12 knots.
Sunny. Waves 1 to 2 feet.

$$

LSZ249-280800-
Marquette to Munising MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots. Showers likely
and a slight chance of thunderstorms. Waves 1 to 2 feet building
to 2 to 3 feet.
.TONIGHT...West wind 10 to 15 knots veering north 15 to 20 knots
late. Cloudy. Showers likely and a slight chance of thunderstorms
through late evening, then a chance of showers by midnight. A
slight chance of showers late. Waves building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...North wind 15 to 20 knots. Mostly cloudy. Waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet.
.THURSDAY NIGHT...North wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Sunny. Waves 1 to
2 feet.

$$

LSZ250-280800-
Munising to Grand Marais MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 10 to 15 knots. Showers likely
and a slight chance of thunderstorms. Waves 2 to 3 feet building
to 2 to 4 feet.
.TONIGHT...West wind 10 to 15 knots veering north 15 to 20 knots
by midnight, then veering northeast 20 to 25 knots late. Cloudy.
Showers likely and a slight chance of thunderstorms through late
evening, then a chance of showers by midnight. Waves building to
4 to 7 feet occasionally to 9 feet.
.THURSDAY...North wind 15 to 20 knots. Mostly cloudy. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY NIGHT...North wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.FRIDAY...North wind less than 10 knots. Sunny. Waves 1 to
2 feet.

$$

LSZ251-280800-
Grand Marais to Whitefish Point MI-
502 PM EDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT THURSDAY THROUGH
THURSDAY EVENING...

.LATE THIS AFTERNOON...West wind 15 to 20 knots. Showers likely
and a slight chance of thunderstorms. Waves 2 to 3 feet building
to 2 to 4 feet.
.TONIGHT...West wind 15 to 20 knots veering north 20 to 25 knots
late. Cloudy. A chance of showers through midnight. Waves
building to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...North wind 15 to 25 knots. Mostly cloudy. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY NIGHT...North wind 10 to 20 knots veering northeast
less than 10 knots after midnight. Mostly clear. Waves subsiding
to 1 to 2 feet.
.FRIDAY...North wind less than 10 knots backing northwest in the
afternoon. Sunny. Waves 1 to 2 feet.

$$

WFO MQT