Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 030301
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
1101 PM EDT Tue Sep 2 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.

LMZ221-030800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1101 PM EDT Tue Sep 2 2025

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

.REST OF TONIGHT...Southwest wind 15 to 20 knots. Cloudy. A
chance of showers and thunderstorms by midnight, then showers
likely and a chance of thunderstorms late. Waves 2 to 4 feet.
.WEDNESDAY...West wind 15 to 20 knots veering northwest by late
morning. Gusts up to 27 knots. Mostly cloudy. Showers likely and
a chance of thunderstorms through mid morning, then a chance of
showers by late morning. A slight chance of showers late. Waves
subsiding to 2 to 3 feet, then building to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 15 to 20 knots backing west
after midnight. Mostly clear. A slight chance of rain showers in
the evening. Waves subsiding to 2 to 3 feet, then building to
2 to 4 feet.
.THURSDAY...West wind 15 to 20 knots diminishing to 10 to
15 knots in the afternoon. Gusts up to 27 knots. Partly cloudy.
Waves subsiding to 1 to 2 feet.

$$

LMZ248-250-030800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1101 PM EDT Tue Sep 2 2025

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

.REST OF TONIGHT...Southwest wind 15 to 20 knots. Mostly cloudy.
A chance of showers and a slight chance of thunderstorms by
midnight, then showers and a chance of thunderstorms late. Waves
2 to 4 feet building to 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY...West wind 15 to 20 knots veering northwest by late
morning. Mostly cloudy. Showers likely and a chance of
thunderstorms through mid morning, then a chance of showers and a
slight chance of thunderstorms by late morning. A slight chance
of showers late. Waves subsiding to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 15 to 20 knots. Mostly clear. A
slight chance of rain showers in the evening. Waves 2 to 4 feet.
.THURSDAY...West wind 15 to 20 knots becoming 10 to 20 knots in
the afternoon. Partly cloudy with a slight chance of rain
showers. Waves subsiding to 1 to 2 feet.

$$

LSZ240-030800-
Saxon Harbor WI to Black River MI-
1101 PM EDT Tue Sep 2 2025 /1001 PM CDT Tue Sep 2 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT /4 AM CDT/
WEDNESDAY THROUGH THURSDAY MORNING...

.REST OF TONIGHT...West wind 15 to 20 knots veering northwest
20 to 25 knots late. Cloudy. Showers likely and a slight chance
of thunderstorms by midnight, then a chance of showers and a
slight chance of thunderstorms late. Waves 2 to 3 feet building
to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...Northwest wind 20 to 25 knots. Cloudy. A chance of
showers through early afternoon. A slight chance of thunderstorms
by late morning. Showers likely late. A slight chance of
waterspouts by late morning. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Cloudy. A
chance of rain showers and a slight chance of thunderstorms in
the evening, then a chance of rain showers after midnight. A
slight chance of waterspouts through the night. Waves subsiding
to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...West wind 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Mostly cloudy. A slight chance of
waterspouts in the morning. A slight chance of rain showers in
the morning, then a chance of rain showers in the afternoon.
Waves subsiding to 1 to 2 feet.

$$

LSZ241-030800-
Black River to Ontonagon MI-
1101 PM EDT Tue Sep 2 2025 /1001 PM CDT Tue Sep 2 2025/

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT /3 AM CDT/
WEDNESDAY THROUGH THURSDAY MORNING...

.REST OF TONIGHT...West wind 15 to 20 knots veering northwest
20 to 25 knots late. Showers likely and a slight chance of
thunderstorms by midnight, then a chance of showers and a slight
chance of thunderstorms late. Waves 2 to 4 feet building to 4 to
7 feet occasionally to 9 feet.
.WEDNESDAY...Northwest wind 20 to 25 knots. A chance of showers
through mid morning, then showers likely by late morning. A
slight chance of waterspouts by late morning. Waves 4 to 7 feet
occasionally to 9 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Cloudy with
showers likely and a slight chance of thunderstorms. A slight
chance of waterspouts. Waves building to 5 to 8 feet occasionally
to 10 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...West wind 20 to 25 knots diminishing to 10 to
20 knots in the afternoon. Mostly cloudy. A slight chance of
waterspouts in the morning. A chance of showers in the morning,
then a slight chance of showers in the afternoon. Waves subsiding
to 2 to 4 feet.

$$

LSZ242-243-030800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...Southwest wind 15 to 25 knots veering
northwest 20 to 25 knots late. Showers likely and a chance of
thunderstorms by midnight, then a chance of showers and
thunderstorms late. Waves 2 to 3 feet building to 4 to 7 feet
occasionally to 9 feet.
.WEDNESDAY...Northwest wind 20 to 25 knots. Showers likely. A
slight chance of waterspouts by late morning. Waves building to
5 to 8 feet occasionally to 10 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Showers likely
and a slight chance of thunderstorms. A slight chance of
waterspouts. Waves subsiding to 4 to 7 feet occasionally to
9 feet.
.THURSDAY...West wind 20 to 25 knots becoming 15 to 25 knots in
the afternoon. Mostly cloudy. A slight chance of waterspouts in
the morning. Showers likely in the morning, then a slight chance
of showers in the afternoon. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ244-245-030800-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...Southwest wind 15 to 20 knots veering west
15 to 25 knots late. Showers likely and a chance of thunderstorms
by midnight, then a chance of showers and thunderstorms late.
Waves 1 to 2 feet building to 5 to 8 feet occasionally to
10 feet.
.WEDNESDAY...Northwest wind up to 30 knots. A slight chance of
thunderstorms through mid morning. Showers likely through the
day. A slight chance of thunderstorms late. A slight chance of
waterspouts late. Waves building to 7 to 10 feet occasionally to
13 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Showers likely
and a slight chance of thunderstorms. A slight chance of
waterspouts. Waves subsiding to 5 to 8 feet occasionally to
10 feet.
.THURSDAY...West wind 20 to 25 knots becoming 15 to 25 knots in
the afternoon. Mostly cloudy. A slight chance of waterspouts in
the morning. Showers likely in the morning, then a chance of
showers in the afternoon. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ246-030800-
Point Isabelle to Lower Entrance of Portage Canal MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...Southwest wind 10 to 15 knots veering west
15 to 20 knots late. Showers likely and a chance of
thunderstorms. Waves 1 to 2 feet building to 2 to 3 feet, then
subsiding to 1 to 2 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots with gusts up to
28 knots. Showers likely. A slight chance of waterspouts by late
morning. Waves building to 2 to 3 feet.
.WEDNESDAY NIGHT...Northwest wind 15 to 20 knots with gusts up to
28 knots. Cloudy. A chance of rain showers and a slight chance of
thunderstorms in the evening, then rain showers likely and a
slight chance of thunderstorms after midnight. A slight chance of
waterspouts through the night. Waves subsiding to 1 to 2 feet,
then building to 2 to 3 feet.
.THURSDAY...West wind 15 to 20 knots becoming 10 to 20 knots in
the afternoon. Gusts up to 27 knots. Mostly cloudy. A slight
chance of waterspouts in the morning. Rain showers likely in the
morning, then a slight chance of rain showers in the afternoon.
Waves subsiding to 1 to 2 feet.

$$

LSZ247-030800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...Southwest wind 10 to 20 knots veering west
15 to 20 knots late. Showers likely and a chance of
thunderstorms. Waves 1 to 2 feet building to 2 to 3 feet.
.WEDNESDAY...Northwest wind 15 to 25 knots. Showers likely and a
slight chance of thunderstorms through early afternoon, then a
chance of showers late. A slight chance of waterspouts by late
morning. Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots becoming 15 to
25 knots after midnight. Cloudy. A chance of rain showers and a
slight chance of thunderstorms in the evening, then rain showers
likely and a slight chance of thunderstorms after midnight. A
slight chance of waterspouts through the night. Waves 2 to
4 feet.
.THURSDAY...West wind 10 to 20 knots with gusts up to 27 knots.
Mostly cloudy. A slight chance of waterspouts in the morning. A
chance of rain showers in the morning, then a slight chance of
rain showers in the afternoon. Waves subsiding to 2 to 3 feet,
then building to 2 to 4 feet.

$$

LSZ248-030800-
Huron Islands to Marquette MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...Southwest wind 10 to 15 knots veering west
10 to 20 knots late. Showers likely and a chance of
thunderstorms. Waves 1 to 2 feet building to 2 to 4 feet.
.WEDNESDAY...Northwest wind 20 to 25 knots. A slight chance of
thunderstorms through mid morning. Showers likely through early
afternoon, then a chance of showers late. A slight chance of
waterspouts late. Waves building to 5 to 8 feet occasionally to
10 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Rain showers
likely and a slight chance of thunderstorms. A slight chance of
waterspouts. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.THURSDAY...West wind 15 to 25 knots. A slight chance of
waterspouts in the morning. Mostly cloudy with a chance of rain
showers. Waves subsiding to 2 to 3 feet.

$$

LSZ249-030800-
Marquette to Munising MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...South wind 10 to 15 knots veering southwest
late. Cloudy. A chance of showers and thunderstorms by midnight,
then showers likely and a chance of thunderstorms late. Waves
1 to 2 feet.
.WEDNESDAY...West wind 15 to 25 knots veering northwest 20 to
25 knots by late morning. Cloudy. A chance of showers and a
slight chance of thunderstorms through mid morning, then a chance
of showers by late morning. A slight chance of waterspouts late.
Waves building to 7 to 10 feet occasionally to 13 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots backing west
after midnight. Mostly cloudy. A chance of rain showers and a
slight chance of thunderstorms in the evening, then a chance of
rain showers after midnight. A slight chance of waterspouts
through the night. Waves subsiding to 5 to 8 feet occasionally to
10 feet.
.THURSDAY...West wind 10 to 20 knots. A slight chance of
waterspouts in the morning. Mostly cloudy with a chance of rain
showers. Waves subsiding to 2 to 4 feet.

$$

LSZ250-030800-
Munising to Grand Marais MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT WEDNESDAY THROUGH
THURSDAY MORNING...

.REST OF TONIGHT...South wind 15 to 20 knots. Cloudy. A chance of
showers and thunderstorms by midnight, then showers likely and a
chance of thunderstorms late. Waves 1 to 2 feet.
.WEDNESDAY...West wind 15 to 25 knots veering northwest 20 to
25 knots by late morning. Showers and a chance of thunderstorms
through mid morning, then a chance of showers by late morning.
Waves building to 7 to 10 feet occasionally to 13 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots backing west
after midnight. Showers likely and a slight chance of
thunderstorms. A slight chance of waterspouts. Waves subsiding to
6 to 9 feet occasionally to 11 feet.
.THURSDAY...West wind 20 to 25 knots diminishing to 10 to
20 knots in the afternoon. A slight chance of waterspouts in the
morning. Mostly cloudy with a chance of showers. Waves subsiding
to 3 to 6 feet occasionally to 8 feet.

$$

LSZ251-030800-
Grand Marais to Whitefish Point MI-
1101 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT WEDNESDAY
THROUGH THURSDAY MORNING...

.REST OF TONIGHT...South wind 15 to 20 knots. Partly cloudy with
a chance of showers and a slight chance of thunderstorms by
midnight, then cloudy with showers and a slight chance of
thunderstorms late. Waves 1 to 2 feet building to 2 to 3 feet.
.WEDNESDAY...Southwest wind 15 to 25 knots veering west 20 to
25 knots by late morning. Cloudy. Showers and a chance of
thunderstorms through mid morning, then a slight chance of
thunderstorms by late morning. A chance of showers by late
morning. A slight chance of waterspouts by late morning. Waves
building to 7 to 10 feet occasionally to 13 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots backing west
after midnight. Mostly cloudy. A chance of showers and a slight
chance of thunderstorms in the evening, then showers likely after
midnight. A slight chance of waterspouts through the night. Waves
subsiding to 6 to 9 feet occasionally to 11 feet.
.THURSDAY...West wind 15 to 20 knots with gusts up to 28 knots.
Mostly cloudy. A slight chance of waterspouts in the morning.
Showers likely in the morning, then a chance of showers and a
slight chance of thunderstorms in the afternoon. Waves subsiding
to 3 to 6 feet occasionally to 8 feet.

$$

WFO MQT