Nearshore Marine Forecast
Issued by NWS Marquette, MI

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FZUS53 KMQT 170902
NSHMQT

Nearshore Marine Forecast
National Weather Service Marquette MI
502 AM EDT Wed Sep 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-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Patchy fog. Waves calm to 1 foot.
.TODAY...Southwest wind less than 10 knots backing south late.
Mostly sunny. Isolated showers and thunderstorms by late morning.
Scattered showers and thunderstorms late. Waves calm to 1 foot.
.TONIGHT...North wind less than 10 knots. Partly cloudy.
Scattered showers and isolated thunderstorms through late
evening. Waves calm to 1 foot.
.THURSDAY...North wind less than 10 knots. Mostly cloudy in the
morning then clearing. Waves calm to 1 foot.
.THURSDAY NIGHT...North wind 10 to 15 knots veering northeast
less than 10 knots after midnight. Mostly clear. 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-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...South wind less than 10 knots. Mostly
clear. Patchy fog. Waves calm to 1 foot.
.TODAY...Southwest wind less than 10 knots. Partly cloudy.
Isolated showers and thunderstorms late. Waves calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north by
midnight. Partly cloudy. Isolated showers and thunderstorms
through late evening. Waves calm to 1 foot.
.THURSDAY...North wind less than 10 knots. Mostly cloudy in the
morning then becoming mostly sunny. Waves calm to 1 foot.
.THURSDAY NIGHT...North wind less than 10 knots veering northeast
after midnight. Mostly clear. Waves calm to 1 foot.

$$

LSZ240-241-172000-
Saxon Harbor WI to Black River MI-
Black River to Ontonagon MI-
502 AM EDT Wed Sep 17 2025 /402 AM CDT Wed Sep 17 2025/

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.TODAY...West wind less than 10 knots through mid morning
becoming variable. Mostly sunny. Waves calm to 1 foot.
.TONIGHT...Northeast wind 5 to 15 knots. Mostly clear through
midnight then becoming mostly cloudy. Waves building to 1 to
2 feet.
.THURSDAY...Northeast wind 10 to 15 knots. Partly cloudy. Waves
building to 2 to 3 feet.
.THURSDAY NIGHT...East wind 5 to 15 knots. Partly cloudy in the
evening then becoming mostly cloudy. Waves subsiding to 1 to
2 feet.

$$

LSZ242-243-172000-
Ontonagon to Upper Entrance of Portage Canal MI-
Upper Entrance of Portage Canal to Eagle River MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.TODAY...West wind less than 10 knots through early afternoon
becoming variable. Mostly sunny. Waves calm to 1 foot.
.TONIGHT...Northeast wind less than 10 knots becoming 5 to
15 knots by midnight. Partly cloudy through midnight then
becoming mostly cloudy. Waves building to 2 to 3 feet.
.THURSDAY...Northeast wind 10 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.THURSDAY NIGHT...East wind less than 10 knots with gusts up to
17 knots. Mostly clear. Waves 1 to 2 feet.

$$

LSZ244-245-172000-
Eagle River to Manitou Island MI-
Manitou Island to Point Isabelle MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Waves 1 to 2 feet.
.TODAY...West wind less than 10 knots veering northwest by late
morning. Mostly sunny. Waves calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering northeast
10 to 15 knots late. Partly cloudy. Waves building to 2 to
3 feet.
.THURSDAY...Northeast wind 5 to 15 knots. Partly cloudy. Waves
subsiding to 1 to 2 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots veering east
after midnight. Mostly clear. Waves 1 to 2 feet.

$$

LSZ246-172000-
Point Isabelle to Lower Entrance of Portage Canal MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.TODAY...West wind less than 10 knots veering north late. Mostly
sunny. Waves calm to 1 foot.
.TONIGHT...North wind less than 10 knots veering northeast late.
Partly cloudy through midnight then becoming mostly cloudy. Waves
calm to 1 foot.
.THURSDAY...Northeast wind less than 10 knots with gusts up to
19 knots. Partly cloudy. Waves calm to 1 foot.
.THURSDAY NIGHT...Variable wind less than 10 knots becoming east
less than 10 knots after midnight. Mostly clear. Waves calm to
1 foot.

$$

LSZ247-172000-
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Mostly
clear. Waves calm to 1 foot.
.TODAY...Southwest wind less than 10 knots veering north late.
Mostly sunny. Waves calm to 1 foot.
.TONIGHT...Northeast wind less than 10 knots. Partly cloudy
through midnight then becoming mostly cloudy. Waves building to
1 to 2 feet.
.THURSDAY...Northeast wind less than 10 knots with gusts up to
20 knots. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind less than 10 knots. Partly cloudy.
Waves calm to 1 foot.

$$

LSZ248-172000-
Huron Islands to Marquette MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...Southwest wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.TODAY...Southwest wind less than 10 knots veering north late.
Mostly sunny. Waves calm to 1 foot.
.TONIGHT...North wind less than 10 knots. Partly cloudy through
midnight then becoming mostly cloudy. Waves building to 1 to
2 feet.
.THURSDAY...Northeast wind less than 10 knots with gusts up to
19 knots. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY NIGHT...Variable wind less than 10 knots becoming east
less than 10 knots after midnight. Mostly clear. Waves 1 to
2 feet.

$$

LSZ249-172000-
Marquette to Munising MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...South wind less than 10 knots. Partly
cloudy. Waves calm to 1 foot.
.TODAY...Southwest wind less than 10 knots veering northwest by
late morning, then veering north late. Partly cloudy with
isolated showers and thunderstorms. Waves calm to 1 foot.
.TONIGHT...North wind less than 10 knots. Partly cloudy through
midnight then becoming mostly cloudy. Waves building to 1 to
2 feet.
.THURSDAY...North wind less than 10 knots. Partly cloudy. Waves
1 to 2 feet.
.THURSDAY NIGHT...Northeast wind less than 10 knots. Mostly
clear. Waves 1 to 2 feet.

$$

LSZ250-172000-
Munising to Grand Marais MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...South wind 10 to 15 knots. Mostly clear.
Waves calm to 1 foot.
.TODAY...Southwest wind 10 to 15 knots veering northwest less
than 10 knots late. Partly cloudy. Isolated showers and
thunderstorms through early afternoon. Waves calm to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north late.
Partly cloudy through midnight then becoming mostly cloudy. Waves
building to 1 to 2 feet.
.THURSDAY...North wind 10 to 15 knots. Partly cloudy. Waves 1 to
2 feet.
.THURSDAY NIGHT...North wind 10 to 15 knots veering northeast
after midnight. Clear. Waves 1 to 2 feet.

$$

LSZ251-172000-
Grand Marais to Whitefish Point MI-
502 AM EDT Wed Sep 17 2025

.EARLY THIS MORNING...South wind 10 to 15 knots. Mostly clear.
Waves calm to 1 foot.
.TODAY...South wind less than 10 knots veering northwest late.
Partly cloudy with isolated showers and thunderstorms. Waves calm
to 1 foot.
.TONIGHT...Northwest wind less than 10 knots veering north late.
Partly cloudy through late evening then becoming mostly cloudy.
Waves building to 1 to 2 feet.
.THURSDAY...North wind 10 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.THURSDAY NIGHT...Northeast wind 10 to 15 knots veering east
after midnight. Clear. Waves 1 to 2 feet.

$$

WFO MQT