061
FZUS63 KMQT 080901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 AM EST Sat Nov 8 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...

Ridging will build over the lake this weekend and 30.6 inch high
pressure develops over the Great Plains, with the ridge over the
lake strengthening from 29.8 inches on Saturday to 30.2 inches
through Sunday night. The ridge quickly breaks down early next week
as a 29.4 inch trough sweeps across the lake Tuesday into Wednesday
morning. By Wednesday night the lake will be between 30.1 inch
ridging over the Plains and a deep 28.8 inch low over the Hudson Bay.


LSZ162-082100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EST Sat Nov 8 2025 /301 AM CST Sat Nov 8 2025/

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves calm to
2 feet.
.TODAY...North winds 10 to 20 knots. Waves calm to 2 feet.
.TONIGHT...North winds 15 to 25 knots backing northwest late.
Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 20 to 30 knots veering north. A chance
of snow showers. Waves building to 3 to 5 feet occasionally to
7 feet.
.SUNDAY NIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. A slight chance of snow showers. Waves
subsiding to 2 to 4 feet.
.MONDAY...North winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 10 to 20 knots backing southwest after
midnight. Waves building to 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west 20 to
30 knots. Waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet.
.WEDNESDAY...Northwest gales to 35 knots. Waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ263-082100-
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-
401 AM EST Sat Nov 8 2025

.EARLY THIS MORNING...North winds 5 to 15 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TODAY...Northwest winds 5 to 15 knots becoming north 10 to
20 knots by mid afternoon. A slight chance of snow showers in the
afternoon. Waves calm to 2 feet.
.TONIGHT...North winds 15 to 25 knots becoming northwest 10 to
20 knots late. A slight chance of snow showers. Waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet.
.SUNDAY...Northwest winds 15 to 25 knots veering north. Snow
showers likely in the morning, then a chance of snow showers in
the afternoon. Waves building to 3 to 6 feet occasionally to
8 feet.
.SUNDAY NIGHT...North winds 20 to 30 knots. A chance of snow
showers. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.MONDAY...North winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...West winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.TUESDAY...Southwest winds 20 to 30 knots becoming northwest
gales to 35 knots. A chance of snow showers. Waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY...Northwest gales to 40 knots. A chance of rain
showers. Waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet.

$$

LSZ264-082100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EST Sat Nov 8 2025

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.TODAY...Northwest winds 5 to 15 knots becoming north 10 to
20 knots by mid afternoon. A slight chance of snow showers in the
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots backing northwest late. A
slight chance of snow showers. Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 15 to 25 knots veering north. A chance
of snow showers in the morning, then snow showers likely in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots after midnight. A chance of snow showers. Waves building
to 3 to 6 feet occasionally to 8 feet.
.MONDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. A chance of snow showers. Waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots backing southwest
after midnight. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
.TUESDAY...Southwest winds 20 to 30 knots becoming northwest
gales to 35 knots. A chance of snow showers. A chance of rain
showers. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...Northwest gales to 40 knots. A chance of rain
showers. Waves building to 5 to 9 feet occasionally to 11 feet.

$$

LSZ265-082100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EST Sat Nov 8 2025

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of snow showers. Waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet.
.TODAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A slight chance of snow showers. Waves
subsiding to 1 to 3 feet.
.TONIGHT...North winds 15 to 25 knots backing northwest late.
Snow showers likely in the evening, then a chance of snow showers
after midnight. Waves building to 3 to 5 feet occasionally to
7 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming north 20 to
30 knots. Snow showers. Waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...North winds 20 to 30 knots. Snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...North winds 20 to 30 knots. Snow showers. Waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. A chance of snow showers. Waves
subsiding to calm to 2 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west gales to
35 knots. A chance of snow showers, possibly mixed with rain,
then rain showers likely. Waves building to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY...Northwest gales to 40 knots. Rain showers likely,
then snow showers likely. Waves building to 5 to 8 feet
occasionally to 10 feet.

$$

LSZ266-082100-
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-
401 AM EST Sat Nov 8 2025

.EARLY THIS MORNING...North winds 10 to 20 knots. A chance of
snow showers. Waves 3 to 6 feet occasionally to 8 feet.
.TODAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of snow showers. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots. Snow showers likely in the
evening, then a chance of snow showers after midnight. Waves
building to 3 to 6 feet occasionally to 8 feet.
.SUNDAY...North winds 15 to 25 knots veering northeast by late
morning, then becoming north 20 to 30 knots by mid afternoon.
Snow showers. Waves 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...North winds 20 to 30 knots. Snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...North winds 20 to 30 knots. Snow showers. Waves
building to 4 to 8 feet occasionally to 10 feet.
.MONDAY NIGHT...North winds 15 to 25 knots becoming west 10 to
20 knots after midnight. Snow showers in the evening, then a
chance of snow showers after midnight. Waves subsiding to 1 to
3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west gales to
35 knots. A chance of rain showers. A chance of snow showers.
Rain showers. Waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY...Northwest gales to 40 knots. Rain showers. Snow
showers likely. Waves building to 9 to 12 feet occasionally to
15 feet.

$$

LSZ267-082100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EST Sat Nov 8 2025

.EARLY THIS MORNING...North winds 10 to 20 knots. A slight chance
of snow showers. Waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet.
.TODAY...North winds 10 to 20 knots backing northwest. A chance
of snow showers. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
.TONIGHT...North winds 15 to 25 knots. Snow showers likely in the
evening, then a chance of snow showers after midnight. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.SUNDAY...Northeast winds 10 to 20 knots increasing to 15 to
25 knots by late morning, then backing north by mid afternoon.
Snow showers likely. Waves building to 3 to 5 feet occasionally
to 7 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots. Snow showers likely
in the evening, then a chance of snow showers after midnight.
Waves subsiding to 2 to 4 feet.
.MONDAY...North winds 15 to 25 knots. Snow showers likely. Waves
building to 3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...North winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. Snow showers in the evening, then
a chance of snow showers after midnight. Waves subsiding to 1 to
3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west 20 to
30 knots. Rain showers, possibly mixed with snow. Waves building
to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...Northwest gales to 35 knots. Rain showers. Snow
showers. Waves building to 9 to 12 feet occasionally to 15 feet.

$$

LSZ261-081500-
MAFOR 0810/
Superior West 12810 12710 11820 12830 11720. Waves 1 to 2 feet
today. Waves 2 to 4 feet tonight.

Superior North Central 12710 12720 12830 11820 11720. A chance of
snow showers this evening. Waves 2 to 4 feet.

Superior South Central 11710 14720 13837. Waves 3 to 5 feet
subsiding to 2 to 4 feet today. Waves 2 to 4 feet building to 3
to 5 feet tonight.

Superior East 11810 11800 11817 11720 11727 11837 11830 11820.
Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 2 to 4
feet building to 3 to 5 feet tonight.

$$

WFO MQT

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weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes