867
FZUS63 KMQT 082101
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 PM 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...

A 29.9 inch ridge over Lake Superior this afternoon strengthens to
30.3 inches through Sunday night as 30.6 inch high pressure builds
over the Great Plains. The ridge weakens to 29.9 inches through
Monday ahead of a 29.4 inch trough sweeps across the lake late
Tuesday into Wednesday. By Wednesday night the lake will be between
30.1 inch ridging over the Plains and a deep 28.7 inch low over the
Hudson Bay.


LSZ162-090900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EST Sat Nov 8 2025 /301 PM CST Sat Nov 8 2025/

.LATE THIS AFTERNOON...North winds 15 to 25 knots. Waves calm to
2 feet.
.TONIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then becoming northwest 15 to 25 knots
late. Scattered snow showers. Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming north 20 to
30 knots. Scattered snow showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots. Isolated snow
showers. Waves subsiding to 2 to 4 feet.
.MONDAY...Northwest winds 15 to 25 knots diminishing to 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 in the afternoon. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TUESDAY NIGHT...West winds 20 to 30 knots veering northwest
after midnight. Waves building to 3 to 6 feet occasionally to
8 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots becoming west 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.
.THURSDAY...West winds 20 to 30 knots becoming northwest 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ263-090900-
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 PM EST Sat Nov 8 2025

.LATE THIS AFTERNOON...North winds 10 to 20 knots. Isolated snow
showers. Waves calm to 2 feet.
.TONIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots by midnight, then becoming northwest 10 to 20 knots
late. Scattered 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. Scattered
snow showers. Waves building to 3 to 6 feet occasionally to
8 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots late. Scattered snow showers. Waves building to 4 to
7 feet occasionally to 9 feet.
.MONDAY...North winds 20 to 30 knots becoming northwest 10 to
20 knots in the afternoon. Isolated snow showers in the morning.
Waves subsiding to 1 to 3 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 veering west in the
afternoon. Waves building to 4 to 7 feet occasionally to 9 feet.
.TUESDAY NIGHT...West winds 20 to 30 knots veering northwest
after midnight. Waves subsiding to 3 to 6 feet occasionally to
8 feet, then building to 6 to 9 feet occasionally to 11 feet.
.WEDNESDAY...Northwest gales to 40 knots. Waves building to 8 to
12 feet occasionally to 15 feet.
.THURSDAY...West gales to 35 knots becoming northwest 20 to
30 knots. Waves subsiding to 1 to 3 feet.

$$

LSZ264-090900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EST Sat Nov 8 2025

.LATE THIS AFTERNOON...North winds 10 to 20 knots. Isolated snow
showers. Waves 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots backing northwest late.
Isolated snow showers. Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots veering north. Scattered
snow showers. Waves subsiding to 1 to 3 feet, then building to
2 to 4 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots becoming northwest
20 to 30 knots late. Scattered snow showers. Waves building to
4 to 7 feet occasionally to 9 feet.
.MONDAY...North winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. Scattered snow showers. Waves building
to 6 to 9 feet occasionally to 11 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. A chance of rain
showers, possibly mixed with snow. Waves building to 4 to 7 feet
occasionally to 9 feet.
.TUESDAY NIGHT...West winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. A chance of rain showers. Waves
building to 6 to 9 feet occasionally to 11 feet.
.WEDNESDAY...Northwest gales to 40 knots. Waves building to 8 to
12 feet occasionally to 15 feet.
.THURSDAY...West gales to 40 knots becoming northwest 20 to
30 knots. Waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 2 to 4 feet.

$$

LSZ265-090900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EST Sat Nov 8 2025

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. Scattered
snow showers. Waves 1 to 3 feet.
.TONIGHT...North winds 15 to 25 knots. Numerous snow showers.
Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY...Northwest winds 15 to 25 knots veering northeast by mid
afternoon. Snow showers in the morning, then scattered snow
showers in the afternoon. Waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots becoming northwest
20 to 30 knots late. Snow showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.MONDAY...North gales to 35 knots becoming northwest 20 to
30 knots in the afternoon. Snow showers in the morning, then
scattered snow showers in the afternoon. Waves building to 5 to
8 feet occasionally to 10 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 increasing to 20 to
30 knots in the afternoon. A chance of snow showers. A chance of
rain showers in the afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...West winds 20 to 30 knots veering northwest
after midnight. Rain showers likely. Waves building to 5 to
8 feet occasionally to 10 feet.
.WEDNESDAY...Northwest gales to 40 knots. Rain showers likely,
then a chance of rain showers, possibly mixed with snow. Waves
building to 7 to 11 feet occasionally to 14 feet.
.THURSDAY...West gales to 40 knots becoming northwest gales to
35 knots. Waves subsiding to calm to 2 feet.

$$

LSZ266-090900-
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 PM EST Sat Nov 8 2025

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. Scattered
snow showers. Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then diminishing to 15 to 25 knots late.
Numerous snow showers. Waves building to 3 to 6 feet occasionally
to 8 feet.
.SUNDAY...North winds 15 to 25 knots veering northeast. Scattered
snow showers. Waves subsiding to 2 to 4 feet, then building to
3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots late. Scattered snow showers in the evening, then
numerous snow showers after midnight. Waves building to 4 to
7 feet occasionally to 9 feet.
.MONDAY...North winds 20 to 30 knots. Snow showers. Waves
building to 5 to 9 feet occasionally to 11 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. Snow showers likely in the
evening. A chance of snow showers after midnight. Waves subsiding
to 2 to 4 feet.
.TUESDAY...Southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. A chance of snow showers in the
morning, then snow showers likely, possibly mixed with rain
showers in the afternoon. Waves subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet.
.TUESDAY NIGHT...West winds 20 to 30 knots veering northwest
after midnight. Rain showers. Waves building to 7 to 10 feet
occasionally to 13 feet.
.WEDNESDAY...Northwest gales to 40 knots. Rain showers. Waves
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 10 to 14 feet occasionally to 18 feet.
.THURSDAY...Northwest gales to 40 knots. A chance of rain and
snow showers. Waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.

$$

LSZ267-090900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EST Sat Nov 8 2025

.LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Numerous
snow showers. Waves 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots by midnight. Snow showers. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.SUNDAY...Northeast winds 15 to 25 knots. Isolated snow showers.
Waves 2 to 4 feet.
.SUNDAY NIGHT...Northeast winds 15 to 25 knots backing north by
midnight. Scattered snow showers. Waves 2 to 4 feet.
.MONDAY...North winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. Snow showers. Waves building to 4 to 7 feet
occasionally to 9 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 2 to
4 feet.
.TUESDAY...Southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. A chance of snow showers in the
morning, then rain showers, possibly mixed with snow in the
afternoon. Waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet.
.TUESDAY NIGHT...Southwest winds 20 to 30 knots veering northwest
after midnight. Rain showers. Waves building to 6 to 9 feet
occasionally to 11 feet.
.WEDNESDAY...Northwest gales to 35 knots. Rain showers. Snow
showers. Waves building to 12 to 17 feet occasionally to 21 feet,
then subsiding to 10 to 14 feet occasionally to 18 feet.
.THURSDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Rain showers, possibly mixed with snow, then a chance
of rain and snow showers. Waves building to 11 to 15 feet
occasionally to 19 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ261-090300-
MAFOR 0822/
Superior West 13830 11720 12730 19737 11830 19837 11840. Waves 1
to 3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet
building to 3 to 5 feet Sunday.

Superior North Central 12830 11820 19827 12720 19727 11820 19827
11827 11120 19127. Waves 2 to 4 feet.

Superior South Central 11720 19727 11827 12837 12827 11127 11130
19137. Waves 2 to 4 feet building to 3 to 5 feet tonight. Waves 3
to 5 feet subsiding to 2 to 4 feet Sunday.

Superior East 11727 11837 11830 19837 12820 19827 12120 19127
11130 19137. Waves 1 to 3 feet building to 3 to 5 feet tonight.
Waves 2 to 4 feet Sunday.

$$

WFO MQT

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weather.gov/mqt/glftable

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weather.gov/greatlakes