524
FZUS63 KMQT 040900
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Wed Nov 4 2026

For waters beyond 5 nautical miles of shore on Lake Superior.

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.

.SYNOPSIS...

A 29.5 inch low lifts along the Minnesota/Wisconsin state line this
morning before trekking northeast over Lake Superior through
tomorrow. High pressure ridging of 30.2 inches returns from the
northwest through Friday, weakening to 30.1 inches on Saturday as it
shifts southeast ahead of a clipper low pressure system.



LSZ162-042100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Wed Nov 4 2026 /300 AM CST Wed Nov 4 2026/

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST /9 AM CST/ THIS
MORNING...

.EARLY THIS MORNING...Northeast winds 20 to 30 knots. Patchy
dense fog. Showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...Northeast winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then becoming north 10 to 20 knots by
mid afternoon. Patchy dense fog. Showers. Waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots increasing to 30 knots with
a few gale force gusts to 35 knots possible. Patchy fog. Showers.
Waves building to 5 to 8 feet occasionally to 10 feet.
.THURSDAY...North winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots. A chance of
rain showers in the morning. Waves building to 7 to 11 feet
occasionally to 14 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northeast winds 5 to 15 knots. Waves subsiding to 1 to
3 feet.
.FRIDAY NIGHT...Southwest winds less than 10 knots becoming west
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots. Waves building to 1 to 3 feet.
.SUNDAY...West winds 15 to 25 knots diminishing to 5 to 15 knots.
Waves subsiding to calm to 2 feet.

$$

LSZ263-042100-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
400 AM EST Wed Nov 4 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.EARLY THIS MORNING...Northeast winds 15 to 25 knots. Patchy
dense fog. Showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...Northeast winds 15 to 25 knots becoming north 10 to
20 knots by mid afternoon. Areas of dense fog in the morning.
Patchy fog in the afternoon. Showers. Waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots increasing to gales to
40 knots. Patchy fog. Showers. Waves building to 5 to 8 feet
occasionally to 10 feet.
.THURSDAY...North gales to 40 knots. Rain showers in the morning,
then a slight chance of rain showers in the afternoon. Waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 9 to 12 feet occasionally to 15 feet.
.THURSDAY NIGHT...North winds 20 to 30 knots becoming northeast
15 to 25 knots after midnight. A slight chance of rain showers in
the evening. Waves subsiding to 4 to 7 feet occasionally to
9 feet.
.FRIDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. Waves subsiding to 1 to 3 feet.
.FRIDAY NIGHT...North winds less than 10 knots becoming west 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots. Waves building to 2 to 4 feet.
.SUNDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet.

$$

LSZ264-042100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Wed Nov 4 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.EARLY THIS MORNING...East winds 10 to 20 knots. Patchy dense
fog. Showers likely. Waves 1 to 3 feet.
.TODAY...East winds 10 to 20 knots veering southeast. Areas of
dense fog. Showers in the morning. A chance of showers in the
afternoon. Waves building to 2 to 4 feet.
.TONIGHT...East winds 15 to 25 knots becoming north 20 to
30 knots by midnight, then increasing to gales to 40 knots late.
Patchy fog. A chance of showers in the evening. Showers after
midnight. Waves building to 5 to 8 feet occasionally to 10 feet.
.THURSDAY...North gales to 45 knots. Rain showers in the morning,
then a chance of rain showers in the afternoon. Waves building to
10 to 14 feet occasionally to 18 feet, then subsiding to 9 to
12 feet occasionally to 15 feet.
.THURSDAY NIGHT...North gales to 35 knots becoming northeast
20 to 30 knots after midnight. A slight chance of rain showers in
the evening. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.FRIDAY...Northeast winds 15 to 25 knots becoming north 5 to
15 knots in the afternoon. Waves subsiding to calm to 2 feet.
.FRIDAY NIGHT...North winds less than 10 knots backing northwest
after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 15 to
25 knots. Waves building to 2 to 4 feet.
.SUNDAY...West winds 20 to 30 knots becoming northwest 15 to
25 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet.

$$

LSZ265-042100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Wed Nov 4 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.EARLY THIS MORNING...Southeast winds 10 to 20 knots. Patchy
dense fog. Showers likely. Waves calm to 2 feet.
.TODAY...Southeast winds 15 to 25 knots diminishing to 10 to
20 knots. Patchy dense fog. Showers likely in the morning. A
chance of showers in the afternoon. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.TONIGHT...South winds 10 to 20 knots becoming west 20 to
30 knots late. Patchy fog. A chance of showers in the evening.
Showers likely after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...North gales to 45 knots. Rain showers. Waves building
to 10 to 14 feet occasionally to 18 feet.
.THURSDAY NIGHT...North gales to 40 knots. A chance of rain
showers. A slight chance of snow showers after midnight. Waves
subsiding to 6 to 9 feet occasionally to 11 feet.
.FRIDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots increasing to 20 to
30 knots. Waves building to 1 to 3 feet.
.SUNDAY...West gales to 35 knots diminishing to 20 to 30 knots.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to calm to 2 feet.

$$

LSZ266-042100-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
400 AM EST Wed Nov 4 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE
THURSDAY NIGHT...

.EARLY THIS MORNING...Southeast winds 10 to 20 knots. Patchy
dense fog. Showers likely. Waves calm to 2 feet.
.TODAY...Southeast winds 15 to 25 knots. Patchy dense fog.
Showers likely in the morning. A slight chance of showers in the
afternoon. Waves building to 2 to 4 feet.
.TONIGHT...South winds 10 to 20 knots increasing to 20 to
30 knots late. Patchy fog. A chance of showers. Waves subsiding
to 1 to 3 feet, then building to 3 to 5 feet occasionally to
7 feet.
.THURSDAY...North gales to 45 knots. Rain showers. Waves building
to 10 to 14 feet occasionally to 18 feet.
.THURSDAY NIGHT...North gales to 40 knots diminishing to 20 to
30 knots after midnight. A chance of rain showers. A slight
chance of snow showers after midnight. Waves subsiding to 7 to
10 feet occasionally to 13 feet.
.FRIDAY...Northeast winds 20 to 30 knots becoming north 15 to
25 knots in the afternoon. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 20 to
30 knots. Waves building to 1 to 3 feet.
.SUNDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

$$

LSZ267-042100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Wed Nov 4 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING...
...GALE WARNING IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE
THURSDAY NIGHT...

.EARLY THIS MORNING...Southeast winds 10 to 20 knots. Patchy
dense fog. Showers likely. Waves calm to 2 feet.
.TODAY...Southeast winds 15 to 25 knots. Patchy dense fog. A
chance of showers. Waves building to 2 to 4 feet.
.TONIGHT...South winds 10 to 20 knots. Patchy fog in the evening.
A chance of showers. Waves subsiding to calm to 2 feet.
.THURSDAY...South winds 10 to 20 knots becoming north gales to
40 knots. Rain showers. Waves building to 7 to 10 feet
occasionally to 13 feet.
.THURSDAY NIGHT...North gales to 35 knots. A chance of rain
showers. A slight chance of snow showers after midnight. Waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet.
.FRIDAY...Northeast winds 20 to 30 knots becoming north 15 to
25 knots in the afternoon. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northeast winds 10 to 20 knots backing north
after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots becoming west 10 to
20 knots. Waves building to 1 to 3 feet.
.SUNDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

$$

LSZ261-041500-
MAFOR 0410/
Superior West...GALE WARNING IN EFFECT...12146 19144 11136 11120
11826 12836 11846. Waves 3 to 6 feet today. Waves 3 to 6 feet
building to 4 to 7 feet tonight.

Superior North Central...GALE WARNING IN EFFECT...11226 19224
11326 19324 11336 19334 11324 11310 11320 11136 11856. Waves 1 to
3 feet building to 3 to 5 feet today. Waves 2 to 4 feet building
to 3 to 6 feet tonight.

Superior South Central 12326 19324 11326 12320 12420 11516. Waves
1 to 3 feet building to 2 to 4 feet today. Waves 1 to 3 feet
tonight.

Superior East 11316 19314 11320 19324 11326 12320 11420 11410
11420. Waves 2 to 4 feet.

$$

WFO MQT

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

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weather.gov/greatlakes