Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 052102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM EDT Sat Jul 5 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.

LMZ221-060800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Sat Jul 5 2025

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

.LATE THIS AFTERNOON...South wind 15 to 20 knots. Mostly cloudy
with a chance of showers and thunderstorms. Waves 2 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest late.
Cloudy. Patchy fog through the night. Showers through late
evening. A chance of thunderstorms through midnight. A chance of
showers by midnight. Waves subsiding to 1 to 2 feet.
.SUNDAY...North wind 10 to 15 knots with gusts up to 22 knots.
Mostly cloudy through mid morning then clearing. Waves building
to 2 to 3 feet.
.SUNDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Waves
subsiding to 1 to 2 feet.
.MONDAY...North wind less than 10 knots in the morning becoming
variable. Sunny. Waves calm to 1 foot.

$$

LMZ248-250-060800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Sat Jul 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY...

.LATE THIS AFTERNOON...South wind 15 to 20 knots. Mostly cloudy
with a chance of showers and thunderstorms. Waves 2 to 4 feet.
.TONIGHT...Southwest wind 10 to 20 knots veering northwest 10 to
15 knots late. Cloudy. Patchy fog through the night. Showers in
the evening. A chance of thunderstorms through the night. A
chance of showers after midnight. Waves subsiding to 2 to 3 feet.
.SUNDAY...North wind 10 to 15 knots. Mostly cloudy through mid
morning then clearing. Patchy fog through mid morning. Waves
subsiding to 1 to 2 feet.
.SUNDAY NIGHT...North wind 5 to 15 knots. Mostly clear. Waves
1 to 2 feet.
.MONDAY...North wind less than 10 knots backing southwest in the
afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ240-241-060800-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 PM EDT Sat Jul 5 2025 /402 PM CDT Sat Jul 5 2025/

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 AM EDT /1 AM CDT/
SUNDAY...

.LATE THIS AFTERNOON...Northwest wind less than 10 knots. Showers
likely and a slight chance of thunderstorms. Patchy fog. Waves
1 to 2 feet.
.TONIGHT...Northwest wind less than 10 knots veering north 5 to
15 knots late. Cloudy. A chance of showers through late evening.
Patchy fog through late evening, then areas of dense fog by
midnight. Patchy fog late. Waves building to 1 to 2 feet.
.SUNDAY...Northeast wind 5 to 15 knots. Mostly sunny. Patchy fog
through mid morning. Waves building to 2 to 4 feet, then
subsiding to 1 to 2 feet.
.SUNDAY NIGHT...Northeast wind less than 10 knots in the evening
becoming variable. Mostly clear. Waves 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots becoming northeast
less than 10 knots in the afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ243-060800-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SUNDAY THROUGH
SUNDAY AFTERNOON...

.LATE THIS AFTERNOON...Northwest wind less than 10 knots. Showers
likely and a chance of thunderstorms. Patchy fog. Waves calm to
1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north 10 to
20 knots late. Cloudy. A chance of showers through late evening,
then a slight chance of showers by midnight. Patchy fog through
late evening, then areas of dense fog by midnight. Waves building
to 2 to 4 feet.
.SUNDAY...Northeast wind 10 to 20 knots backing north less than
10 knots late. Sunny. Waves subsiding to 1 to 2 feet.
.SUNDAY NIGHT...Variable wind less than 10 knots. Mostly clear.
Waves 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

LSZ242-060800-
Ontonagon to Upper Entrance of Portage Canal MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY...

.LATE THIS AFTERNOON...Northwest wind less than 10 knots. Cloudy
with a chance of showers and thunderstorms. Patchy fog. Waves
calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north 10 to
20 knots late. Cloudy. A chance of showers through late evening.
Patchy fog through late evening, then areas of dense fog by
midnight. Waves building to 2 to 3 feet.
.SUNDAY...Northeast wind 10 to 20 knots. Mostly sunny. Waves
building to 2 to 4 feet, then subsiding to 1 to 2 feet.
.SUNDAY NIGHT...North wind less than 10 knots in the evening
becoming variable. Mostly clear. Waves 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots becoming northeast
less than 10 knots in the afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ245-060800-
Manitou Island to Point Isabelle MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SUNDAY THROUGH
SUNDAY AFTERNOON...

.LATE THIS AFTERNOON...Northeast wind less than 10 knots. Showers
and a chance of thunderstorms. Patchy fog. Waves calm to 1 foot.
.TONIGHT...North wind 10 to 15 knots increasing to 15 to 20 knots
late. Cloudy. Showers likely and a slight chance of thunderstorms
through late evening, then a slight chance of showers by
midnight. Patchy fog through midnight. Waves building to 3 to
5 feet occasionally to 7 feet.
.SUNDAY...North wind 10 to 20 knots diminishing to 5 to 15 knots
late. Mostly sunny. Waves subsiding to 2 to 3 feet.
.SUNDAY NIGHT...North wind less than 10 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ244-060800-
Eagle River to Manitou Island MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SUNDAY THROUGH
SUNDAY AFTERNOON...

.LATE THIS AFTERNOON...West wind less than 10 knots. Showers and
a chance of thunderstorms. Patchy fog. Waves calm to 1 foot.
.TONIGHT...Northwest wind 10 to 15 knots veering north 10 to
20 knots late. Cloudy. A chance of showers through late evening,
then a slight chance of showers by midnight. Patchy fog through
late evening, then areas of dense fog by midnight. Waves building
to 3 to 5 feet occasionally to 7 feet.
.SUNDAY...North wind 10 to 20 knots backing northwest 5 to
15 knots late. Sunny. Waves subsiding to 2 to 3 feet.
.SUNDAY NIGHT...Northwest wind less than 10 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

LSZ246-060800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...

.LATE THIS AFTERNOON...West wind less than 10 knots with gusts up
to 17 knots. Showers and a chance of thunderstorms. Patchy fog.
Waves calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north 10 to
15 knots late. Gusts up to 22 knots. Cloudy. A chance of showers
through late evening, then a slight chance of showers by
midnight. Patchy fog through midnight. Waves building to 1 to
2 feet.
.SUNDAY...Northeast wind 5 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...Variable wind less than 10 knots. Mostly clear.
Waves calm to 1 foot.
.MONDAY...Variable wind less than 10 knots. Gusts up to 15 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ247-060800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...

.LATE THIS AFTERNOON...West wind less than 10 knots with gusts up
to 18 knots. Showers and a chance of thunderstorms. Patchy fog.
Waves calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north 5 to
15 knots late. Cloudy. Showers likely and a slight chance of
thunderstorms through late evening, then a slight chance of
showers by midnight. Patchy fog through midnight. Waves building
to 2 to 3 feet.
.SUNDAY...Northeast wind 5 to 15 knots. Mostly sunny. Waves
subsiding to 1 to 2 feet.
.SUNDAY NIGHT...Variable wind less than 10 knots. Clear. Waves
1 to 2 feet.
.MONDAY...Variable wind less than 10 knots becoming east less
than 10 knots in the afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ248-060800-
Huron Islands to Marquette MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.LATE THIS AFTERNOON...Southwest wind less than 10 knots with
gusts up to 17 knots. Showers and a chance of thunderstorms.
Patchy fog. Waves calm to 1 foot.
.TONIGHT...Northwest wind 10 to 15 knots. Cloudy. Patchy fog
through the night. Showers likely and a slight chance of
thunderstorms through late evening. A chance of showers by
midnight, then a slight chance of showers late. Waves building to
2 to 3 feet.
.SUNDAY...North wind 5 to 15 knots. Partly cloudy through early
afternoon then clearing. Patchy fog through mid morning. Waves
building to 2 to 4 feet.
.SUNDAY NIGHT...Northwest wind less than 10 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots. Gusts up to 13 knots.
Sunny. Waves calm to 1 foot.

$$

LSZ249-060800-
Marquette to Munising MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

.LATE THIS AFTERNOON...Southwest wind less than 10 knots with
gusts up to 17 knots. Showers and a chance of thunderstorms.
Patchy fog. Waves calm to 1 foot.
.TONIGHT...West wind 10 to 15 knots veering northwest 10 to
20 knots by midnight. Cloudy. Patchy fog through late evening.
Areas of dense fog by midnight. Showers and a chance of
thunderstorms through late evening, then a chance of showers by
midnight. A slight chance of showers late. Waves building to 2 to
4 feet.
.SUNDAY...North wind 10 to 20 knots. Mostly cloudy through mid
morning then clearing. Patchy fog through mid morning. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.SUNDAY NIGHT...Northwest wind less than 10 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.
.MONDAY...Variable wind less than 10 knots. Sunny. Waves calm to
1 foot.

$$

LSZ250-060800-
Munising to Grand Marais MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 10 to 15 knots. Showers and a
chance of thunderstorms. Patchy fog. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest late.
Gusts up to 22 knots. Cloudy. Patchy fog through late evening.
Areas of dense fog by midnight. Showers and a chance of
thunderstorms through late evening, then a chance of showers by
midnight. A slight chance of showers late. Waves building to 2 to
4 feet.
.SUNDAY...North wind 15 to 20 knots backing northwest 10 to
15 knots late. Mostly cloudy through mid morning then clearing.
Patchy fog through mid morning. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...Northwest wind less than 10 knots. Mostly clear.
Waves subsiding to 1 to 2 feet.
.MONDAY...North wind less than 10 knots. Mostly sunny. Waves 1 to
2 feet.

$$

LSZ251-060800-
Grand Marais to Whitefish Point MI-
502 PM EDT Sat Jul 5 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM EDT SUNDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

.LATE THIS AFTERNOON...South wind 10 to 15 knots. Showers likely
and a chance of thunderstorms. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest 10 to
20 knots late. Patchy fog through the night. A chance of
thunderstorms in the evening. Showers through the night. A slight
chance of thunderstorms after midnight. Waves building to 2 to
4 feet.
.SUNDAY...North wind 15 to 20 knots. Mostly cloudy through mid
morning then clearing. Patchy fog through mid morning. A slight
chance of showers through mid morning. A slight chance of showers
late. Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.SUNDAY NIGHT...Northwest wind 10 to 15 knots veering north less
than 10 knots after midnight. Mostly clear. Waves subsiding to
1 to 2 feet.
.MONDAY...Northeast wind less than 10 knots backing northwest in
the afternoon. Mostly sunny. Waves 1 to 2 feet.

$$

WFO MQT