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FZUS53 KMQT 210301
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
1101 PM EDT Wed Aug 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.

LMZ221-210800-
Green Bay North of line from Cedar River MI to Rock Island
Passage-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...North wind 5 to 15 knots. Mostly clear. Patchy
fog through the night. Waves 1 to 2 feet.
.THURSDAY...North wind less than 10 knots through mid morning
becoming variable. Mostly sunny. Patchy dense fog through mid
morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Variable wind less than 10 knots becoming
southwest less than 10 knots after midnight. Clear in the evening
then becoming partly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots increasing to 10 to
15 knots in the afternoon. Partly cloudy. A slight chance of
showers and thunderstorms in the afternoon. Waves building to
1 to 2 feet.

$$

LMZ248-250-210800-
Seul Choix Point to Point Detour MI-
5NM East of a line from Fairport MI to Rock Island Passage-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...North wind 5 to 15 knots. Partly cloudy.
Patchy fog through the night. Waves 1 to 2 feet.
.THURSDAY...North wind less than 10 knots through mid morning
becoming variable. Mostly sunny. Patchy fog through mid morning.
Waves calm to 1 foot.
.THURSDAY NIGHT...Southwest wind less than 10 knots. Clear in the
evening then becoming partly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind 5 to 15 knots becoming 10 to 15 knots in
the afternoon. Partly cloudy. A slight chance of showers in the
afternoon. Waves building to 1 to 2 feet.

$$

LSZ240-241-210800-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
1101 PM EDT Wed Aug 20 2025 /1001 PM CDT Wed Aug 20 2025/

.REST OF TONIGHT...Variable wind less than 10 knots becoming
south less than 10 knots late. Mostly clear. Patchy fog through
the night. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny.
Patchy fog through mid morning. Waves calm to 1 foot.
.THURSDAY NIGHT...South wind less than 10 knots veering southwest
after midnight. Partly cloudy in the evening, then mostly cloudy
with a slight chance of showers after midnight. Waves calm to
1 foot.
.FRIDAY...Southwest wind less than 10 knots with gusts up to
17 knots. Mostly cloudy with a chance of showers and a slight
chance of thunderstorms in the morning, then mostly sunny with a
chance of showers and thunderstorms in the afternoon. Waves calm
to 1 foot.

$$

LSZ242-243-210800-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Mostly
clear. Patchy fog through the night. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny.
Patchy fog through mid morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering
southwest 10 to 15 knots after midnight. Partly cloudy in the
evening then becoming mostly cloudy. Waves building to 1 to
2 feet.
.FRIDAY...Southwest wind 10 to 15 knots with gusts up to
23 knots. Mostly cloudy with a slight chance of showers and
thunderstorms in the morning, then mostly sunny with a chance of
showers and thunderstorms in the afternoon. Waves 1 to 2 feet.

$$

LSZ244-245-210800-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Partly
cloudy. Areas of dense fog. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming southeast
less than 10 knots late. Partly cloudy. Patchy dense fog through
mid morning. Waves calm to 1 foot.
.THURSDAY NIGHT...South wind less than 10 knots veering southwest
after midnight. Gusts up to 19 knots. Mostly cloudy. Waves
building to 1 to 2 feet.
.FRIDAY...Southwest wind 10 to 15 knots. Partly cloudy. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and a slight chance of thunderstorms in the afternoon.
Waves 1 to 2 feet.

$$

LSZ246-210800-
Point Isabelle to Lower Entrance of Portage Canal MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Partly
cloudy. Patchy fog through the night. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming east less
than 10 knots late. Partly cloudy. Patchy dense fog through mid
morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering
southwest after midnight. Mostly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots with gusts up to
21 knots. Partly cloudy. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. Waves calm to 1 foot.

$$

LSZ247-210800-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Mostly
clear. Patchy fog through the night. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming east less
than 10 knots by late morning. Mostly sunny. Patchy fog through
mid morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering
southwest after midnight. Partly cloudy in the evening then
becoming mostly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots with gusts up to
20 knots. Partly cloudy. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. Waves calm to 1 foot.

$$

LSZ248-210800-
Huron Islands to Marquette MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Partly
cloudy. Patchy fog by midnight, then areas of dense fog late.
Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming east less
than 10 knots by late morning. Mostly sunny. Areas of dense fog
through mid morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Variable wind less than 10 knots becoming
southwest less than 10 knots after midnight. Partly cloudy in the
evening then becoming mostly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots with gusts up to
18 knots. Partly cloudy. A slight chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. Waves calm to 1 foot.

$$

LSZ249-210800-
Marquette to Munising MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Partly
cloudy by midnight then becoming mostly cloudy. Areas of dense
fog. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots becoming east less
than 10 knots late. Partly cloudy through early afternoon then
clearing. Areas of dense fog through mid morning. Waves calm to
1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering
southwest after midnight. Partly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots. Partly cloudy. A
chance of showers and a slight chance of thunderstorms in the
afternoon. Waves calm to 1 foot.

$$

LSZ250-210800-
Munising to Grand Marais MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Variable wind less than 10 knots. Partly
cloudy by midnight then becoming mostly cloudy. Areas of dense
fog. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Mostly sunny. Areas
of dense fog through early afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering south
after midnight. Partly cloudy. Waves calm to 1 foot.
.FRIDAY...Southwest wind less than 10 knots. Partly cloudy. A
chance of showers and a slight chance of thunderstorms in the
afternoon. Waves calm to 1 foot.

$$

LSZ251-210800-
Grand Marais to Whitefish Point MI-
1101 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Northwest wind less than 10 knots. Partly
cloudy by midnight then becoming mostly cloudy. Areas of dense
fog. Waves calm to 1 foot.
.THURSDAY...Variable wind less than 10 knots. Partly cloudy.
Areas of dense fog through early afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Southeast wind less than 10 knots veering south
after midnight. Partly cloudy. 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.

$$

WFO MQT