168
FZUS63 KMQT 120301
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1001 PM EST Tue Nov 11 2025

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 29.4 inch trough over Lake Superior this evening departs into
eastern Ontario Wednesday morning as a 29.3 inch low moves over
Hudson Bay. By Wednesday night, the lake will be between 30.1 inch
ridging over the Midwest and a deep 28.4 inch low over Labrador.
Ridging builds to 30.0 inches over the lake Thursday night ahead of
a 29.4 inch trough moving out of the northern Rockies. This trough
looks to move across Lake Superior at around 29.4 inches on Saturday.


LSZ162-120900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1001 PM EST Tue Nov 11 2025 /901 PM CST Tue Nov 11 2025/

.REST OF TONIGHT...West winds 20 to 30 knots becoming northwest
to 30 knots with a few gale force gusts to 35 knots possible by
midnight. Waves 3 to 6 feet occasionally to 8 feet building to
4 to 7 feet occasionally to 9 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots backing west. Waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight, then backing west late. Waves
subsiding to 2 to 4 feet.
.THURSDAY...West winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.THURSDAY NIGHT...West winds 5 to 15 knots backing east after
midnight. Waves subsiding to calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots backing east in the
afternoon. Waves building to 1 to 3 feet.
.FRIDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Waves building to 2 to 4 feet.
.SATURDAY...South winds 10 to 20 knots becoming northwest 15 to
25 knots. A chance of rain showers. Waves subsiding to 1 to
3 feet.
.SUNDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.

$$

LSZ263-120900-
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-
1001 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...West winds 20 to 30 knots veering northwest by
midnight, then increasing to gales to 35 knots late. Isolated
rain showers. Waves 4 to 7 feet occasionally to 9 feet building
to 6 to 9 feet occasionally to 11 feet.
.WEDNESDAY...Northwest gales to 35 knots. Waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight, then backing west late. Waves
subsiding to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...West winds 20 to 30 knots. Waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY NIGHT...Northwest winds 10 to 20 knots becoming east
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.FRIDAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon. Waves building to 2 to 4 feet.
.FRIDAY NIGHT...Southeast winds 15 to 25 knots veering south
after midnight. Waves building to 3 to 6 feet occasionally to
8 feet.
.SATURDAY...South winds 15 to 25 knots becoming northwest 20 to
30 knots. A chance of rain showers. Waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet.
.SUNDAY...Northwest winds 20 to 30 knots. Waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 2 to 4 feet.

$$

LSZ264-120900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1001 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TONIGHT...West winds 20 to 30 knots veering northwest by
midnight, then increasing to gales to 35 knots late. Scattered
rain showers. Waves 4 to 7 feet occasionally to 9 feet building
to 6 to 9 feet occasionally to 11 feet.
.WEDNESDAY...Northwest gales to 35 knots. Isolated rain showers
in the morning. Waves building to 6 to 10 feet occasionally to
13 feet.
.WEDNESDAY NIGHT...Northwest gales to 35 knots diminishing to
20 to 30 knots by midnight. Waves subsiding to 4 to 7 feet
occasionally to 9 feet.
.THURSDAY...West winds 20 to 30 knots. Waves building to 4 to
8 feet occasionally to 10 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming north
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.
.FRIDAY NIGHT...Southeast winds 20 to 30 knots veering south
after midnight. Waves building to 6 to 9 feet occasionally to
11 feet.
.SATURDAY...South gales to 35 knots becoming northwest 20 to
30 knots. Rain showers likely, then a chance of rain showers.
Waves subsiding to 4 to 8 feet occasionally to 10 feet.
.SUNDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. A chance of snow showers. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ265-120900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1001 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TONIGHT...West gales to 35 knots becoming northwest
gales to 40 knots by midnight. Scattered rain showers. Waves 3 to
6 feet occasionally to 8 feet building to 5 to 8 feet
occasionally to 10 feet.
.WEDNESDAY...Northwest gales to 40 knots. Scattered rain showers.
Waves building to 6 to 9 feet occasionally to 11 feet.
.WEDNESDAY NIGHT...Northwest gales to 40 knots. Waves subsiding
to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...West winds 20 to 30 knots. Waves subsiding to 3 to
5 feet occasionally to 7 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. Waves building to 1 to 3 feet.
.FRIDAY NIGHT...Southeast winds 20 to 30 knots veering south
after midnight. Waves building to 3 to 6 feet occasionally to
8 feet.
.SATURDAY...South winds 20 to 30 knots becoming northwest gales
to 35 knots. Rain showers likely. Waves subsiding to 2 to 4 feet,
then building to 3 to 6 feet occasionally to 8 feet.
.SUNDAY...Northwest gales to 35 knots. A chance of rain and snow
showers. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet.

$$

LSZ266-120900-
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-
1001 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TONIGHT...West winds 20 to 30 knots veering northwest by
midnight, then increasing to gales to 35 knots late. Numerous
rain showers late in the evening, then scattered rain showers
after midnight. Waves 4 to 7 feet occasionally to 9 feet building
to 7 to 10 feet occasionally to 13 feet.
.WEDNESDAY...Northwest gales to 40 knots. Scattered rain showers.
Waves building to 9 to 12 feet occasionally to 15 feet.
.WEDNESDAY NIGHT...Northwest gales to 40 knots. Scattered rain
showers, possibly mixed with snow. Waves subsiding to 7 to
10 feet occasionally to 13 feet.
.THURSDAY...West winds 20 to 30 knots. Waves subsiding to 5 to
8 feet occasionally to 10 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming north
5 to 15 knots after midnight. Waves subsiding to 1 to 3 feet.
.FRIDAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon. Waves subsiding to calm to 2 feet,
then building to 2 to 4 feet.
.FRIDAY NIGHT...Southeast winds 20 to 30 knots veering south
after midnight. Waves building to 6 to 9 feet occasionally to
11 feet.
.SATURDAY...South gales to 35 knots becoming northwest 20 to
30 knots. Rain showers. Waves subsiding to 5 to 8 feet
occasionally to 10 feet, then building to 6 to 9 feet
occasionally to 11 feet.
.SUNDAY...Northwest gales to 35 knots. A chance of rain and snow
showers. Waves building to 9 to 12 feet occasionally to 15 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet.

$$

LSZ267-120900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1001 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH LATE WEDNESDAY NIGHT...

.REST OF TONIGHT...West winds 15 to 25 knots becoming northwest
20 to 30 knots by midnight, then increasing to gales to 35 knots
late. Isolated snow showers late in the evening. Rain showers.
Waves 3 to 5 feet occasionally to 7 feet building to 7 to 10 feet
occasionally to 13 feet.
.WEDNESDAY...Northwest gales to 40 knots. Numerous rain showers
in the morning, then scattered rain showers in the afternoon.
Waves building to 9 to 12 feet occasionally to 15 feet.
.WEDNESDAY NIGHT...Northwest gales to 40 knots. Scattered rain
showers. Isolated snow showers after midnight. Waves subsiding to
7 to 10 feet occasionally to 13 feet.
.THURSDAY...Northwest gales to 35 knots backing west in the
afternoon. Isolated rain showers. Waves subsiding to 6 to 9 feet
occasionally to 11 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Isolated rain showers in the
evening. Waves subsiding to 2 to 4 feet.
.FRIDAY...East winds 10 to 20 knots veering southeast in the
afternoon. Waves subsiding to calm to 2 feet.
.FRIDAY NIGHT...Southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. Waves building to 3 to 6 feet
occasionally to 8 feet.
.SATURDAY...Southeast gales to 35 knots veering northwest. Rain
showers. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.SUNDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Rain showers. Snow showers likely. Waves building to
9 to 12 feet occasionally to 15 feet, then subsiding to 5 to
8 feet occasionally to 10 feet.

$$

LSZ261-120900-
MAFOR 1204/
Superior West...GALE WARNING IN EFFECT...14740 11740 11640 12740.
Waves 3 to 6 feet building to 5 to 8 feet overnight. Waves 5 to 8
feet Wednesday. Waves 3 to 6 feet Wednesday evening.

Superior North Central...GALE WARNING IN EFFECT...12740 15750.
Waves 5 to 8 feet overnight. Waves 6 to 10 feet Wednesday and
Wednesday evening.

Superior South Central...GALE WARNING IN EFFECT...11740 19746
11756 14750 19756 12750. Waves 5 to 9 feet overnight. Waves 7 to
11 feet Wednesday and Wednesday evening.

Superior East...GALE WARNING IN EFFECT...11746 11740 19746 12746
14750 19756. Waves 5 to 8 feet building to 7 to 10 feet
overnight. Waves 7 to 11 feet building to 9 to 12 feet Wednesday.
Waves 9 to 12 feet Wednesday evening.

$$

WFO MQT

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weather.gov/mqt/glftable

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weather.gov/greatlakes