594
FZUS53 KMQT 192102
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 PM EDT Tue Aug 19 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.

LMZ221-200800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Northeast wind less than 10 knots. Mostly
cloudy with a slight chance of showers. Waves calm to 1 foot.
.TONIGHT...Northeast wind 5 to 15 knots backing north less than
10 knots late. Mostly cloudy. Patchy fog by midnight. A slight
chance of showers late. Waves building to 1 to 2 feet.
.WEDNESDAY...North wind less than 10 knots. Partly cloudy. Waves
calm to 1 foot.
.WEDNESDAY NIGHT...North wind less than 10 knots. Mostly clear.
Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Sunny. Waves calm
to 1 foot.

$$

LMZ248-250-200800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Northeast wind 10 to 15 knots. Mostly
cloudy with a slight chance of showers. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 to 15 knots becoming less than
10 knots late. Mostly cloudy. Patchy fog by midnight. Waves 1 to
2 feet.
.WEDNESDAY...North wind less than 10 knots. Mostly cloudy through
mid morning then becoming mostly sunny. Waves calm to 1 foot.
.WEDNESDAY NIGHT...North wind less than 10 knots. Clear. Waves
calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Sunny. Waves calm
to 1 foot.

$$

LSZ240-200800-
Saxon Harbor WI to Black River MI-
502 PM EDT Tue Aug 19 2025 /402 PM CDT Tue Aug 19 2025/

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots. Partly cloudy.
Patchy fog by midnight. Waves calm to 1 foot.
.WEDNESDAY...Variable wind less than 10 knots. Mostly cloudy
through mid morning then clearing. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

LSZ241-200800-
Black River to Ontonagon MI-
502 PM EDT Tue Aug 19 2025 /402 PM CDT Tue Aug 19 2025/

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING...

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Partly
cloudy. Patchy fog. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots. Mostly cloudy.
Patchy fog through the night. Waves calm to 1 foot.
.WEDNESDAY...Variable wind less than 10 knots. Mostly cloudy
through mid morning then clearing. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Sunny. Waves calm
to 1 foot.

$$

LSZ242-243-200800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 PM EDT Tue Aug 19 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Northeast wind less than 10 knots. Mostly cloudy.
Patchy fog by midnight. Waves calm to 1 foot.
.WEDNESDAY...North wind less than 10 knots. Partly cloudy through
early afternoon then clearing. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

LSZ245-200800-
Manitou Island to Point Isabelle MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Northeast wind less than 10 knots backing north late.
Mostly cloudy. Patchy fog through the night. Waves calm to
1 foot.
.WEDNESDAY...North wind less than 10 knots. Partly cloudy through
early afternoon then clearing. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Gusts up to
14 knots. Mostly sunny. Waves calm to 1 foot.

$$

LSZ244-200800-
Eagle River to Manitou Island MI-
502 PM EDT Tue Aug 19 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Patchy fog. Waves calm to 1 foot.
.TONIGHT...Northeast wind less than 10 knots backing north late.
Mostly cloudy. Areas of dense fog. Waves calm to 1 foot.
.WEDNESDAY...North wind less than 10 knots through early
afternoon becoming variable. Mostly cloudy through mid morning
then becoming mostly sunny. Patchy fog through mid morning. Waves
calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming southeast
less than 10 knots in the afternoon. Mostly sunny. Waves calm to
1 foot.

$$

LSZ246-200800-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots becoming north less
than 10 knots late. Mostly cloudy. Patchy fog through the night.
Waves calm to 1 foot.
.WEDNESDAY...Variable wind less than 10 knots. Gusts up to
14 knots. Partly cloudy. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming southeast
less than 10 knots in the afternoon. Mostly sunny. Waves calm to
1 foot.

$$

LSZ247-200800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy with a slight chance of showers. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots. Mostly cloudy.
Patchy fog through the night. Waves calm to 1 foot.
.WEDNESDAY...Variable wind less than 10 knots. Gusts up to
14 knots. Partly cloudy through early afternoon then clearing.
Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming east less
than 10 knots in the afternoon. Sunny. Waves calm to 1 foot.

$$

LSZ248-200800-
Huron Islands to Marquette MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots becoming north less
than 10 knots by midnight. Cloudy. Patchy fog through the night.
Waves calm to 1 foot.
.WEDNESDAY...North wind less than 10 knots. Mostly cloudy through
early afternoon then clearing. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Gusts up to
15 knots. Sunny. Waves calm to 1 foot.

$$

LSZ249-200800-
Marquette to Munising MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots becoming north less
than 10 knots by midnight. Cloudy. Patchy fog by midnight. Areas
of dense fog late. Waves calm to 1 foot.
.WEDNESDAY...North wind less than 10 knots. Partly cloudy. Waves
calm to 1 foot.
.WEDNESDAY NIGHT...Variable wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

LSZ250-200800-
Munising to Grand Marais MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Variable wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
.TONIGHT...Variable wind less than 10 knots becoming north less
than 10 knots late. Cloudy. Areas of fog by midnight. Waves calm
to 1 foot.
.WEDNESDAY...North wind less than 10 knots. Partly cloudy. Waves
calm to 1 foot.
.WEDNESDAY NIGHT...North wind less than 10 knots. Partly cloudy.
Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Sunny. Waves calm
to 1 foot.

$$

LSZ251-200800-
Grand Marais to Whitefish Point MI-
502 PM EDT Tue Aug 19 2025

.LATE THIS AFTERNOON...Southeast wind less than 10 knots. Cloudy.
Waves calm to 1 foot.
.TONIGHT...Southeast wind less than 10 knots backing north late.
Mostly cloudy. Patchy fog by midnight. Waves calm to 1 foot.
.WEDNESDAY...North wind less than 10 knots backing northwest by
late morning. Partly cloudy. Waves calm to 1 foot.
.WEDNESDAY NIGHT...Northwest wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny. Waves
calm to 1 foot.

$$

WFO MQT