785
FZUS53 KMQT 170903
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
503 AM EDT Thu Jul 17 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.

LMZ221-172000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
503 AM EDT Thu Jul 17 2025

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

.EARLY THIS MORNING...North wind 20 to 25 knots. Cloudy with a
slight chance of showers. Waves 3 to 5 feet occasionally to
7 feet.
.TODAY...North wind 15 to 25 knots diminishing to 10 to 15 knots
late. Mostly cloudy through mid morning then clearing. Waves
subsiding to 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots veering southwest by
midnight, then becoming variable late. Clear. Waves calm to
1 foot.
.FRIDAY...South wind less than 10 knots. Sunny in the morning
then becoming partly cloudy. Waves calm to 1 foot.
.FRIDAY NIGHT...South wind less than 10 knots. Mostly cloudy. A
chance of showers in the evening, then showers likely and a
slight chance of thunderstorms after midnight. Waves calm to
1 foot.

$$

LMZ248-250-172000-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
503 AM EDT Thu Jul 17 2025

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

.EARLY THIS MORNING...North wind 20 to 25 knots. Cloudy with a
slight chance of showers. Waves 3 to 5 feet occasionally to
7 feet.
.TODAY...North wind 10 to 20 knots with gusts up to 28 knots.
Mostly cloudy through mid morning then clearing. Waves subsiding
to 1 to 2 feet.
.TONIGHT...North wind less than 10 knots through late evening
becoming variable. Clear. Waves 1 to 2 feet.
.FRIDAY...South wind less than 10 knots. Sunny in the morning
then becoming partly cloudy. Waves calm to 1 foot.
.FRIDAY NIGHT...South wind less than 10 knots. Mostly cloudy. A
chance of showers in the evening, then a chance of showers and a
slight chance of thunderstorms after midnight. Waves calm to
1 foot.

$$

LSZ240-241-172000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
503 AM EDT Thu Jul 17 2025 /403 AM CDT Thu Jul 17 2025/

.EARLY THIS MORNING...West wind less than 10 knots. Partly
cloudy. Waves 1 to 2 feet.
.TODAY...West wind less than 10 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...South wind less than 10 knots. Clear. Waves calm to
1 foot.
.FRIDAY...Variable wind less than 10 knots. Mostly cloudy. A
slight chance of showers in the morning, then a chance of showers
in the afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Cloudy. Showers
likely and a slight chance of thunderstorms in the evening, then
a chance of showers and a slight chance of thunderstorms after
midnight. Waves calm to 1 foot.

$$

LSZ242-243-172000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
503 AM EDT Thu Jul 17 2025

.EARLY THIS MORNING...Northwest wind less than 10 knots. Partly
cloudy. Waves 1 to 2 feet.
.TODAY...West wind less than 10 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind less than 10 knots. Clear. Waves calm
to 1 foot.
.FRIDAY...Southwest wind less than 10 knots. Partly cloudy. A
slight chance of showers in the afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy.
A chance of showers in the evening, then a chance of showers and
a slight chance of thunderstorms after midnight. Waves calm to
1 foot.

$$

LSZ244-245-172000-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
503 AM EDT Thu Jul 17 2025

.EARLY THIS MORNING...Northwest wind 10 to 15 knots. Mostly
cloudy. Waves 2 to 3 feet.
.TODAY...Northwest wind 5 to 15 knots backing west 10 to 15 knots
late. Sunny. Waves subsiding to 1 to 2 feet.
.TONIGHT...West wind 5 to 15 knots backing southwest less than
10 knots late. Clear. Waves 1 to 2 feet.
.FRIDAY...Southwest wind less than 10 knots. Partly cloudy. A
slight chance of showers in the afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy
with a chance of showers. Waves calm to 1 foot.

$$

LSZ246-172000-
Point Isabelle to Lower Entrance of Portage Canal MI-
503 AM EDT Thu Jul 17 2025

.EARLY THIS MORNING...North wind less than 10 knots. Mostly
cloudy. Waves 1 to 2 feet.
.TODAY...Northwest wind less than 10 knots backing west by late
morning. Sunny. Waves 1 to 2 feet.
.TONIGHT...West wind less than 10 knots backing southwest by
midnight. Clear. Waves calm to 1 foot.
.FRIDAY...Variable wind less than 10 knots. Partly cloudy in the
morning, then cloudy with a slight chance of showers in the
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy
with a chance of showers. Waves calm to 1 foot.

$$

LSZ247-172000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
503 AM EDT Thu Jul 17 2025

.EARLY THIS MORNING...North wind less than 10 knots. Mostly
cloudy. Waves 2 to 3 feet.
.TODAY...Northwest wind less than 10 knots. Sunny. Waves
subsiding to 1 to 2 feet.
.TONIGHT...Variable wind less than 10 knots becoming southwest
less than 10 knots by midnight. Clear. Waves calm to 1 foot.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 15 knots.
Partly cloudy. A slight chance of showers in the afternoon. Waves
calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy
with a chance of showers. Waves calm to 1 foot.

$$

LSZ248-172000-
Huron Islands to Marquette MI-
503 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.EARLY THIS MORNING...North wind 15 to 20 knots. Mostly cloudy
with a slight chance of showers. Waves 3 to 5 feet occasionally
to 7 feet.
.TODAY...Northwest wind 5 to 15 knots. Sunny. Waves subsiding to
1 to 2 feet.
.TONIGHT...West wind less than 10 knots backing southwest by
midnight. Clear. Waves calm to 1 foot.
.FRIDAY...Variable wind less than 10 knots. Gusts up to 14 knots.
Mostly sunny in the morning, then mostly cloudy with a slight
chance of showers in the afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Variable wind less than 10 knots. Mostly cloudy
with a chance of showers. Waves calm to 1 foot.

$$

LSZ249-172000-
Marquette to Munising MI-
503 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.EARLY THIS MORNING...North wind 15 to 20 knots. Cloudy with a
chance of showers. Waves 3 to 6 feet occasionally to 8 feet.
.TODAY...North wind 10 to 20 knots backing northwest less than
10 knots late. Partly cloudy through mid morning then clearing.
Waves subsiding to 1 to 2 feet.
.TONIGHT...Variable wind less than 10 knots becoming southwest
less than 10 knots by midnight. Clear. Waves 1 to 2 feet.
.FRIDAY...Variable wind less than 10 knots. Sunny in the morning,
then mostly cloudy with a slight chance of showers in the
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...South wind less than 10 knots. Mostly cloudy with
a chance of showers. Waves calm to 1 foot.

$$

LSZ250-172000-
Munising to Grand Marais MI-
503 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.EARLY THIS MORNING...North wind 20 to 25 knots. Cloudy with a
chance of showers. Waves 3 to 6 feet occasionally to 8 feet.
.TODAY...North wind 15 to 20 knots diminishing to 10 to 15 knots
by late morning, then backing northwest less than 10 knots late.
Mostly sunny. Waves subsiding to 1 to 2 feet.
.TONIGHT...Southwest wind less than 10 knots. Clear. Waves 1 to
2 feet.
.FRIDAY...Southwest wind less than 10 knots. Sunny in the morning
then becoming mostly cloudy. Waves calm to 1 foot.
.FRIDAY NIGHT...South wind less than 10 knots. Mostly cloudy with
a chance of showers. Waves calm to 1 foot.

$$

LSZ251-172000-
Grand Marais to Whitefish Point MI-
503 AM EDT Thu Jul 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

.EARLY THIS MORNING...North wind 20 to 25 knots. Cloudy with a
chance of showers. Waves 3 to 6 feet occasionally to 8 feet.
.TODAY...North wind 15 to 20 knots backing northwest 10 to
15 knots late. Mostly cloudy through mid morning then clearing.
Waves subsiding to 1 to 2 feet.
.TONIGHT...West wind 5 to 15 knots backing southwest less than
10 knots late. Clear. Waves 1 to 2 feet.
.FRIDAY...Southwest wind less than 10 knots backing southeast in
the afternoon. Sunny in the morning then becoming mostly cloudy.
Waves calm to 1 foot.
.FRIDAY NIGHT...South wind less than 10 knots. Mostly cloudy. A
slight chance of showers in the evening, then a chance of showers
after midnight. Waves calm to 1 foot.

$$

WFO MQT