Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 171501
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
1101 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-
1101 AM EDT Thu Jul 17 2025

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

.REST OF TODAY...North wind 10 to 20 knots. Sunny. Waves 2 to
4 feet subsiding to 1 to 2 feet.
.TONIGHT...Northeast wind less than 10 knots through late evening
becoming variable. 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-
1101 AM EDT Thu Jul 17 2025

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

.REST OF TODAY...North wind 10 to 20 knots. Sunny. Waves 2 to
4 feet subsiding to 1 to 2 feet.
.TONIGHT...North wind less than 10 knots through late evening
becoming variable. 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 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-
1101 AM EDT Thu Jul 17 2025 /1001 AM CDT Thu Jul 17 2025/

.REST OF TODAY...West wind less than 10 knots. Sunny. Waves calm
to 1 foot.
.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-
1101 AM EDT Thu Jul 17 2025

.REST OF TODAY...West wind less than 10 knots. Sunny. Waves calm
to 1 foot.
.TONIGHT...Southwest wind less than 10 knots backing south late.
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-
1101 AM EDT Thu Jul 17 2025

.REST OF TODAY...West wind 10 to 15 knots. Sunny. Waves 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-
1101 AM EDT Thu Jul 17 2025

.REST OF TODAY...West wind less than 10 knots. Sunny. Waves calm
to 1 foot.
.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-
1101 AM EDT Thu Jul 17 2025

.REST OF TODAY...Variable wind less than 10 knots. Sunny. Waves
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-
1101 AM EDT Thu Jul 17 2025

.REST OF TODAY...Northwest wind less than 10 knots. Sunny. Waves
2 to 3 feet 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 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-
1101 AM EDT Thu Jul 17 2025

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

.REST OF TODAY...Northwest wind 5 to 15 knots. Sunny. Waves 2 to
4 feet subsiding to 1 to 2 feet.
.TONIGHT...Southwest wind less than 10 knots. 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-
1101 AM EDT Thu Jul 17 2025

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

.REST OF TODAY...Northwest wind 10 to 15 knots diminishing to
less than 10 knots late. Sunny. Waves 2 to 4 feet 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-
1101 AM EDT Thu Jul 17 2025

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

.REST OF TODAY...Northwest wind 10 to 15 knots. Mostly sunny.
Waves 2 to 4 feet subsiding to 1 to 2 feet.
.TONIGHT...West wind less than 10 knots backing southwest by
midnight. 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