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FZUS53 KMQT 201140
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
740 AM EDT Sun Apr 20 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.

LMZ221-202000-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
740 AM EDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY EVENING...

.EARLY THIS MORNING...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.TODAY...Southeast wind less than 10 knots backing east 10 to
15 knots late. Partly cloudy. Waves building to 1 to 2 feet.
.TONIGHT...East wind 10 to 15 knots increasing to 15 to 25 knots
by midnight. A chance of rain through late evening, then rain by
midnight. Waves building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...East wind 15 to 25 knots backing northwest 10 to
20 knots in the afternoon. Rain in the morning, then a chance of
rain in the afternoon. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy. A
slight chance of rain showers and snow showers in the evening.
Waves subsiding to 1 to 2 feet.

$$

LMZ248-250-202000-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
740 AM EDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY EVENING...

.EARLY THIS MORNING...East wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...Southeast wind less than 10 knots backing east 10 to
15 knots late. Partly cloudy. Waves building to 1 to 2 feet.
.TONIGHT...East wind 15 to 25 knots. Gusts up to 33 knots after
midnight. A slight chance of rain through late evening, then rain
by midnight. Waves building to 5 to 8 feet occasionally to
10 feet.
.MONDAY...East wind 15 to 25 knots with gale force gusts up to
34 knots veering southwest 15 to 20 knots in the afternoon. Rain
and a slight chance of thunderstorms in the morning, then rain in
the afternoon. Waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy with
a chance of snow showers possibly mixed with rain showers. Waves
subsiding to 2 to 3 feet.

$$

LSZ240-241-202000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
740 AM EDT Sun Apr 20 2025 /640 AM CDT Sun Apr 20 2025/

.EARLY THIS MORNING...South wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...South wind less than 10 knots backing east 10 to
15 knots late. Mostly sunny through early afternoon then becoming
mostly cloudy. Waves building to 1 to 2 feet.
.TONIGHT...East wind 10 to 15 knots with gusts up to 26 knots
backing northeast 15 to 20 knots late. Cloudy. A chance of rain
through late evening, then rain by midnight. Waves building to
3 to 5 feet occasionally to 7 feet.
.MONDAY...Northeast wind 20 to 25 knots backing north 15 to
20 knots in the afternoon. Rain and snow. Waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots backing west less
than 10 knots after midnight. Mostly clear. A slight chance of
rain showers in the evening. Waves subsiding to 1 to 2 feet.

$$

LSZ242-243-202000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...South wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...South wind less than 10 knots backing east 10 to
15 knots late. Mostly sunny. Waves building to 1 to 2 feet.
.TONIGHT...Southeast wind 10 to 15 knots backing east 10 to
20 knots late. Cloudy. A slight chance of rain through late
evening, then a chance of rain by midnight. Rain possibly mixed
with snow late. Waves building to 2 to 3 feet.
.MONDAY...Northeast wind 20 to 25 knots backing north in the
afternoon. Rain and snow. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy with
a chance of rain showers possibly mixed with snow showers in the
evening, then mostly clear after midnight. Waves subsiding to
2 to 3 feet.

$$

LSZ244-245-202000-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...South wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...South wind less than 10 knots backing southeast 10 to
15 knots by late morning, then becoming 10 to 20 knots late.
Mostly sunny. Waves building to 2 to 3 feet.
.TONIGHT...Southeast wind 10 to 20 knots backing east 15 to
25 knots late. Cloudy. A chance of rain by midnight. Rain
possibly mixed with snow late. Waves building to 2 to 4 feet,
then subsiding to 2 to 3 feet.
.MONDAY...Northeast wind 20 to 25 knots backing north in the
afternoon. Rain and snow. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.MONDAY NIGHT...Northwest wind 15 to 25 knots. Cloudy with rain
showers and snow showers likely in the evening, then partly
cloudy after midnight. Waves subsiding to 3 to 5 feet
occasionally to 7 feet.

$$

LSZ246-202000-
Point Isabelle to Lower Entrance of Portage Canal MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...Variable wind less than 10 knots. Clear.
Waves calm to 1 foot.
.TODAY...Variable wind less than 10 knots becoming east 5 to
15 knots by late morning. Mostly sunny. Waves building to 2 to
3 feet.
.TONIGHT...East wind 10 to 15 knots becoming 10 to 20 knots late.
A slight chance of rain through late evening, then a chance of
rain by midnight. Rain possibly mixed with snow late. Waves
building to 2 to 4 feet, then subsiding to 2 to 3 feet.
.MONDAY...Northeast wind 15 to 25 knots backing north 15 to
20 knots in the afternoon. Rain and snow. Waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.MONDAY NIGHT...Northwest wind 10 to 15 knots with gusts up to
24 knots. Mostly cloudy with a chance of rain showers and snow
showers in the evening, then mostly clear after midnight. Waves
subsiding to 1 to 2 feet.

$$

LSZ247-202000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...Variable wind less than 10 knots. Clear.
Waves calm to 1 foot.
.TODAY...Variable wind less than 10 knots becoming east 10 to
20 knots by late morning. Partly cloudy. Waves building to 2 to
3 feet.
.TONIGHT...East wind 10 to 20 knots becoming 15 to 20 knots late.
A slight chance of rain through late evening, then rain by
midnight. A slight chance of snow late. Waves building to 2 to
4 feet, then subsiding to 2 to 3 feet.
.MONDAY...Northeast wind 15 to 25 knots backing north 15 to
20 knots in the afternoon. Rain and snow possibly mixed with
sleet in the morning, then rain and snow in the afternoon. Waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...Northwest wind 10 to 20 knots. Cloudy with a
chance of rain showers and snow showers in the evening, then
partly cloudy with a slight chance of rain showers after
midnight. Waves subsiding to 1 to 2 feet.

$$

LSZ248-202000-
Huron Islands to Marquette MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...South wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...South wind less than 10 knots backing southeast 10 to
15 knots by late morning. Partly cloudy. Waves building to 2 to
3 feet.
.TONIGHT...Southeast wind 10 to 15 knots backing east 15 to
20 knots late. A slight chance of rain through late evening, then
rain by midnight. A slight chance of snow and sleet late. Waves
building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...East wind 15 to 25 knots backing north 15 to 20 knots
in the afternoon. Rain possibly mixed with snow. Waves building
to 6 to 9 feet occasionally to 11 feet, then subsiding to 4 to
7 feet occasionally to 9 feet.
.MONDAY NIGHT...Northwest wind 15 to 25 knots. Cloudy with a
chance of rain showers and snow showers in the evening, then
partly cloudy with a slight chance of rain showers after
midnight. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

$$

LSZ249-202000-
Marquette to Munising MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...South wind less than 10 knots. Clear. Waves
calm to 1 foot.
.TODAY...South wind less than 10 knots backing east 5 to 15 knots
by late morning. Mostly sunny. Waves building to 1 to 2 feet.
.TONIGHT...Southeast wind 5 to 15 knots backing east 15 to
20 knots late. A chance of rain through late evening, then rain
by midnight. A slight chance of sleet late. Waves building to
2 to 4 feet.
.MONDAY...East wind 15 to 20 knots backing north in the
afternoon. Rain in the morning, then rain possibly mixed with
snow in the afternoon. Waves building to 3 to 5 feet occasionally
to 7 feet.
.MONDAY NIGHT...Northwest wind 15 to 25 knots. Mostly cloudy. A
chance of rain showers and snow showers in the evening, then a
slight chance of rain showers and snow showers after midnight.
Waves building to 5 to 8 feet occasionally to 10 feet.

$$

LSZ250-202000-
Munising to Grand Marais MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...Variable wind less than 10 knots. Clear.
Waves calm to 1 foot.
.TODAY...South wind less than 10 knots backing east 5 to 15 knots
by late morning. Mostly sunny. Waves building to 1 to 2 feet.
.TONIGHT...Southeast wind 10 to 15 knots backing east 15 to
25 knots late. A slight chance of rain through late evening, then
rain by midnight. Waves building to 2 to 4 feet.
.MONDAY...East wind 15 to 25 knots backing northeast 15 to
20 knots in the afternoon. Rain. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.MONDAY NIGHT...Northwest wind 20 to 25 knots. Cloudy with a
chance of rain showers and snow showers. Waves building to 5 to
8 feet occasionally to 10 feet.

$$

LSZ251-202000-
Grand Marais to Whitefish Point MI-
740 AM EDT Sun Apr 20 2025

.EARLY THIS MORNING...Variable wind less than 10 knots. Clear.
Waves 1 to 2 feet.
.TODAY...Variable wind less than 10 knots becoming east 5 to
15 knots by late morning. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Southeast wind 10 to 15 knots backing east 15 to
25 knots late. A slight chance of rain through late evening, then
a chance of rain by midnight. Rain late. Waves building to 3 to
5 feet occasionally to 7 feet.
.MONDAY...East wind 15 to 25 knots. Rain. Waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 3 feet.
.MONDAY NIGHT...Northwest wind 20 to 25 knots. Cloudy. Rain
showers likely possibly mixed with snow showers in the evening,
then a chance of rain showers and snow showers after midnight.
Waves building to 5 to 8 feet occasionally to 10 feet.

$$

WFO MQT