Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 160903
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 AM EDT Wed Jul 16 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.

LMZ221-162000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY AFTERNOON...

...Small craft should exercise caution from this afternoon
through this evening...

.EARLY THIS MORNING...Northwest wind less than 10 knots. Mostly
cloudy with a slight chance of showers and thunderstorms. Waves
calm to 1 foot.
.TODAY...North wind 10 to 20 knots. Mostly cloudy. A slight
chance of showers and thunderstorms through mid morning. A slight
chance of showers and thunderstorms late. Waves building to 2 to
4 feet.
.TONIGHT...North wind 15 to 25 knots. Cloudy. A chance of showers
and thunderstorms through midnight, then a chance of showers and
a slight chance of thunderstorms late. Waves building to 3 to
5 feet occasionally to 7 feet.
.THURSDAY...North wind 15 to 25 knots diminishing to 10 to
15 knots in the afternoon. Partly cloudy in the morning then
clearing. Waves subsiding to 1 to 2 feet.
.THURSDAY NIGHT...North wind less than 10 knots in the evening
becoming variable. Clear. Waves 1 to 2 feet.

$$

LMZ248-250-162000-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY AFTERNOON...

.EARLY THIS MORNING...Northwest wind less than 10 knots. Mostly
cloudy. Waves 1 to 2 feet.
.TODAY...North wind 10 to 20 knots. Mostly cloudy. A slight
chance of showers through mid morning. A slight chance of showers
and thunderstorms late. Waves building to 2 to 3 feet.
.TONIGHT...North wind 15 to 25 knots. Cloudy with a chance of
showers and thunderstorms. Waves building to 3 to 5 feet
occasionally to 7 feet.
.THURSDAY...North wind 15 to 25 knots diminishing to 10 to
15 knots in the afternoon. Partly cloudy with a slight chance of
showers in the morning, then sunny in the afternoon. Waves
subsiding to 1 to 2 feet.
.THURSDAY NIGHT...North wind less than 10 knots. Clear. Waves
1 to 2 feet.

$$

LSZ240-241-162000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 AM EDT Wed Jul 16 2025 /402 AM CDT Wed Jul 16 2025/

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

.EARLY THIS MORNING...Northeast wind 15 to 20 knots. Cloudy with
a chance of showers and a slight chance of thunderstorms. Waves
2 to 3 feet building to 2 to 4 feet.
.TODAY...Northeast wind 15 to 20 knots. A chance of showers
through mid morning, then showers likely by late morning. A
chance of showers late. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.TONIGHT...Northeast wind 10 to 15 knots backing northwest less
than 10 knots late. Cloudy with a chance of showers. Waves
subsiding to 1 to 2 feet.
.THURSDAY...West wind less than 10 knots. Sunny. Waves calm to
1 foot.
.THURSDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ243-162000-
Upper Entrance of Portage Canal to Eagle River MI-
502 AM EDT Wed Jul 16 2025

.EARLY THIS MORNING...Northeast wind 10 to 15 knots. Cloudy with
a chance of showers. Waves 2 to 3 feet.
.TODAY...Northeast wind 5 to 15 knots. Cloudy. A chance of
showers through mid morning, then showers likely by late morning.
A chance of showers late. Waves building to 2 to 4 feet, then
subsiding to 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots backing north by
midnight. Cloudy with a chance of showers. Waves 1 to 2 feet.
.THURSDAY...Northwest wind less than 10 knots backing west in the
afternoon. Sunny. Waves calm to 1 foot.
.THURSDAY NIGHT...Southwest wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ242-162000-
Ontonagon to Upper Entrance of Portage Canal MI-
502 AM EDT Wed Jul 16 2025

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

.EARLY THIS MORNING...Northeast wind 10 to 15 knots. Cloudy with
a chance of showers. Waves 2 to 3 feet building to 2 to 4 feet.
.TODAY...Northeast wind 10 to 20 knots. A chance of showers
through mid morning, then showers likely by late morning. A
chance of showers late. Waves subsiding to 2 to 3 feet.
.TONIGHT...Northeast wind less than 10 knots backing north late.
Cloudy with a chance of showers. Waves subsiding to 1 to 2 feet.
.THURSDAY...Northwest wind less than 10 knots backing west in the
afternoon. Sunny. Waves calm to 1 foot.
.THURSDAY NIGHT...Southwest wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ245-162000-
Manitou Island to Point Isabelle MI-
502 AM EDT Wed Jul 16 2025

.EARLY THIS MORNING...North wind 15 to 20 knots. Cloudy with a
chance of showers. Waves 2 to 3 feet building to 2 to 4 feet.
.TODAY...Northeast wind 10 to 20 knots. Cloudy. A slight chance
of showers through mid morning, then showers likely by late
morning. A chance of showers late. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 3 feet.
.TONIGHT...Northeast wind less than 10 knots backing north 10 to
15 knots by midnight. Cloudy with a chance of showers. Waves
subsiding to 1 to 2 feet.
.THURSDAY...North wind less than 10 knots backing west in the
afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ244-162000-
Eagle River to Manitou Island MI-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.EARLY THIS MORNING...North wind 15 to 20 knots. Cloudy with a
chance of showers. Waves 2 to 3 feet building to 2 to 4 feet.
.TODAY...Northeast wind 10 to 20 knots. Cloudy with a chance of
showers. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots backing north 5 to
15 knots by midnight. Cloudy. A slight chance of showers through
late evening, then a chance of showers by midnight. Waves 1 to
2 feet.
.THURSDAY...Northwest wind less than 10 knots backing west in the
afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ246-162000-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 AM EDT Wed Jul 16 2025

.EARLY THIS MORNING...North wind 10 to 15 knots. Cloudy with a
chance of showers. Waves 1 to 2 feet.
.TODAY...Northeast wind 5 to 15 knots. Cloudy. A chance of
showers through mid morning, then showers likely by late morning.
A chance of showers late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots backing north by
midnight. Cloudy. A chance of showers through midnight, then
showers likely late. Waves 1 to 2 feet.
.THURSDAY...North wind less than 10 knots in the morning becoming
variable. Sunny. Waves calm to 1 foot.
.THURSDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ247-162000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 AM EDT Wed Jul 16 2025

.EARLY THIS MORNING...Northeast wind 10 to 15 knots. Cloudy with
a chance of showers. Waves 1 to 2 feet.
.TODAY...Northeast wind 10 to 15 knots. Cloudy. A chance of
showers through early afternoon, then showers likely late. Waves
building to 2 to 4 feet, then subsiding to 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots backing north by
midnight. Cloudy with a chance of showers. Waves 1 to 2 feet.
.THURSDAY...North wind less than 10 knots in the morning becoming
variable. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ248-162000-
Huron Islands to Marquette MI-
502 AM EDT Wed Jul 16 2025

.EARLY THIS MORNING...North wind 10 to 15 knots. Cloudy with a
chance of showers and a slight chance of thunderstorms. Waves
1 to 2 feet building to 2 to 3 feet.
.TODAY...North wind 10 to 15 knots. Cloudy with a chance of
showers and a slight chance of thunderstorms. Waves building to
2 to 4 feet.
.TONIGHT...North wind 10 to 20 knots. Cloudy with a chance of
showers. Waves subsiding to 2 to 3 feet, then building to 2 to
4 feet.
.THURSDAY...Northwest wind 5 to 15 knots. Sunny. Waves subsiding
to 1 to 2 feet.
.THURSDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
calm to 1 foot.

$$

LSZ249-162000-
Marquette to Munising MI-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

.EARLY THIS MORNING...Northwest wind 10 to 15 knots. Cloudy with
a chance of showers and a slight chance of thunderstorms. Waves
calm to 1 foot building to 1 to 2 feet.
.TODAY...North wind 10 to 15 knots. Cloudy. A slight chance of
showers and thunderstorms through early afternoon, then a chance
of showers and a slight chance of thunderstorms late. Waves
building to 2 to 4 feet.
.TONIGHT...North wind 10 to 20 knots. Cloudy. A slight chance of
thunderstorms through late evening. A chance of showers through
midnight, then showers likely late. Waves building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...North wind 10 to 20 knots backing northwest 5 to
15 knots in the afternoon. Sunny. Waves subsiding to 1 to 2 feet.
.THURSDAY NIGHT...West wind less than 10 knots in the evening
becoming variable. Clear. Waves 1 to 2 feet.

$$

LSZ250-162000-
Munising to Grand Marais MI-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

.EARLY THIS MORNING...Northwest wind less than 10 knots. Cloudy
with a slight chance of showers. Waves calm to 1 foot.
.TODAY...North wind 10 to 15 knots. Cloudy. A slight chance of
showers and thunderstorms through early afternoon, then a chance
of showers and a slight chance of thunderstorms late. Waves
building to 2 to 4 feet.
.TONIGHT...Northeast wind 15 to 20 knots. 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...North wind 15 to 20 knots backing northwest 10 to
15 knots in the afternoon. Sunny. A slight chance of showers in
the morning. Waves subsiding to 1 to 2 feet.
.THURSDAY NIGHT...West wind less than 10 knots in the evening
becoming variable. Clear. Waves 1 to 2 feet.

$$

LSZ251-162000-
Grand Marais to Whitefish Point MI-
502 AM EDT Wed Jul 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

.EARLY THIS MORNING...Northwest wind less than 10 knots. Cloudy
with a slight chance of showers. Waves calm to 1 foot.
.TODAY...Northwest wind less than 10 knots veering north 10 to
15 knots by late morning. Cloudy. A slight chance of
thunderstorms through mid morning. A slight chance of showers
through the day. A slight chance of thunderstorms late. Waves
building to 2 to 4 feet.
.TONIGHT...Northeast wind 15 to 25 knots. Cloudy. A chance of
showers and a slight chance of thunderstorms through midnight,
then showers likely late. Waves building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...North wind 15 to 25 knots backing northwest 10 to
15 knots in the afternoon. Partly cloudy with a slight chance of
showers in the morning, then sunny in the afternoon. Waves
subsiding to 2 to 3 feet.
.THURSDAY NIGHT...West wind 5 to 15 knots backing southwest less
than 10 knots after midnight. Clear. Waves subsiding to 1 to
2 feet.

$$

WFO MQT