380
FZUS63 KMQT 020901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Mon Feb 2 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 29.9 inch trough crossing the lake early this morning moves over
the Ontario/Quebec line tonight. Meanwhile, a 30.4 inch high moves
south from Lake Winnipeg today, extending ridging of at least 30.2
inches over the lake beginning late tonight. This high settles south
over the Upper Mississippi River Valley and Plains through Wednesday
ahead of a 29.4 inch low moving into Hudson Bay by Thursday morning.
This low pulls a 29.6 inch trough through Lake Superior Thursday
night followed by ridging of at least 30.3 inches by Friday night.


LSZ162-022100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Mon Feb 2 2026 /300 AM CST Mon Feb 2 2026/

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...Northwest winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 15 to 25 knots veering north. A
chance of snow showers, possibly mixed with rain. Waves building
to 1 to 3 feet, then subsiding to calm to 2 feet.
.FRIDAY...North winds 15 to 25 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-022100-
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 Mon Feb 2 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of snow showers. Waves 1 to 3 feet building to 2 to
4 feet.
.TODAY...Northwest winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.TONIGHT...North winds 10 to 20 knots. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.TUESDAY...North winds 5 to 15 knots backing northwest by mid
afternoon. A slight chance of snow showers in the morning. Waves
subsiding to calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.THURSDAY...Southwest winds 20 to 30 knots veering north. A
chance of snow showers, possibly mixed with rain. Waves building
to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-022100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Mon Feb 2 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of snow showers. Waves 2 to 4 feet.
.TODAY...North winds 15 to 25 knots backing northwest. A slight
chance of snow showers in the morning. Heavy freezing spray.
Waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots late. Heavy freezing spray in the evening. A slight
chance of snow showers. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.TUESDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots by late morning, then backing northwest by mid
afternoon. A chance of snow showers. Waves subsiding to calm to
2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming
southwest 10 to 20 knots after midnight. Waves building to 1 to
3 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming north gales
to 35 knots. A chance of snow showers. Heavy freezing spray.
Waves building to 7 to 10 feet occasionally to 13 feet.
.FRIDAY...North gales to 40 knots diminishing to 20 to 30 knots.
Heavy freezing spray. Waves building to 8 to 11 feet occasionally
to 14 feet, then subsiding to 2 to 4 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-022100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Mon Feb 2 2026

.EARLY THIS MORNING...West winds 15 to 25 knots. A chance of snow
showers. Waves calm to 2 feet.
.TODAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots. A slight chance of snow showers. Waves building to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...Northwest winds 15 to 25 knots. A chance of snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. A chance of snow showers. Waves
subsiding to 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots backing west
after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 10 to 20 knots backing southwest
after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming northwest
gales to 35 knots. A chance of snow showers. Waves building to
7 to 10 feet occasionally to 13 feet.
.FRIDAY...North gales to 40 knots becoming northwest 20 to
30 knots. Heavy freezing spray. Waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-022100-
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 Mon Feb 2 2026

.EARLY THIS MORNING...West winds 15 to 25 knots. A chance of snow
showers. Waves 2 to 4 feet.
.TODAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots. Freezing spray. A chance of snow showers. Waves
building to 5 to 8 feet occasionally to 10 feet.
.TONIGHT...Northwest winds to 30 knots with a few gale force
gusts to 35 knots possible becoming north 20 to 30 knots by
midnight. Heavy freezing spray. A chance of snow showers. Waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet.
.TUESDAY...North winds 15 to 25 knots backing northwest by mid
afternoon. Heavy freezing spray in the morning. A chance of snow
showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Waves subsiding
to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. Waves subsiding to calm to 2 feet,
then building to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots becoming
southwest 10 to 20 knots after midnight. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming north gales
to 40 knots. A chance of snow showers. Heavy freezing spray.
Waves building to 8 to 11 feet occasionally to 14 feet.
.FRIDAY...North gales to 40 knots. Heavy freezing spray. Waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-022100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Mon Feb 2 2026

.EARLY THIS MORNING...Southwest winds 15 to 25 knots. Snow
showers. Waves 2 to 4 feet.
.TODAY...Southwest winds 15 to 25 knots veering northwest by late
morning, then increasing to 20 to 30 knots by mid afternoon. Snow
showers likely in the morning, then a chance of snow showers in
the afternoon. Freezing spray in the afternoon. Waves building to
5 to 8 feet occasionally to 10 feet.
.TONIGHT...Northwest winds 20 to 30 knots veering north by
midnight, then diminishing to 15 to 25 knots late. Freezing
spray. A chance of snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.TUESDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of snow showers. Waves subsiding to 2 to
4 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots backing
southwest after midnight. Waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 25 knots becoming north gales
to 35 knots. A chance of snow showers, then snow showers likely.
Heavy freezing spray. Waves building to 7 to 10 feet occasionally
to 13 feet.
.FRIDAY...North gales to 35 knots diminishing to 20 to 30 knots.
Heavy freezing spray. Waves building to 9 to 12 feet occasionally
to 15 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-021500-
MAFOR 0210/
Superior West 13720 12710 12820 11810. Waves 1 to 3 feet today.
Waves 2 feet or less tonight. Wave heights are for ice free
areas.

Superior North Central 11740 11842 11742 11732 11742 11842 11832
11830. A chance of snow showers early this morning. Waves 3 to 6
feet building to 4 to 7 feet, then subsiding to 3 to 6 feet
today. Waves 3 to 6 feet tonight.

Superior South Central 11620 12730 11740 12742 12732. A chance of
snow showers this morning and tonight. Waves 1 to 3 feet building
to 4 to 7 feet today. Waves 5 to 8 feet tonight. Wave heights are
for ice free areas.

Superior East 11527 11637 11731 13740 12832. Waves 3 to 6 feet
building to 5 to 7 feet today. Waves 5 to 8 feet tonight.

$$

WFO MQT

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weather.gov/mqt/glftable

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weather.gov/greatlakes