048
FZUS63 KMQT 022101
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 PM 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 low moving into northern Ontario this afternoon crosses
over the Ontario/Quebec line late tonight or Tuesday morning.
Meanwhile, a 30.4 inch high moves south from Lake Winnipeg this
evening, extending ridging of at least 30.2 inches over Lake
Superior beginning tonight. This high settles south over the Upper
Mississippi River Valley and Plains through Wednesday ahead of a
deepening 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. The
ridging intensifies to 30.4 inches by Saturday.


LSZ162-030900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EST Mon Feb 2 2026 /300 PM CST Mon Feb 2 2026/

.LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Waves calm
to 2 feet.
.TONIGHT...North winds 10 to 20 knots. 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...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots backing southwest
after midnight. A chance of snow showers after midnight. Waves
calm to 2 feet.
.THURSDAY...Southwest winds 15 to 25 knots. A chance of snow
showers. Waves calm to 2 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots veering northwest
after midnight. A chance of rain showers in the evening. A chance
of snow showers. Waves calm to 2 feet.
.FRIDAY...North winds 15 to 25 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots veering north. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-030900-
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 PM EST Mon Feb 2 2026

.LATE THIS AFTERNOON...Northwest winds 5 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.TUESDAY...North winds 5 to 15 knots becoming northwest less than
10 knots by mid afternoon. Isolated snow showers in the morning.
Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots backing west by
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. A chance of snow showers after
midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 15 to 25 knots. A chance of snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots becoming northwest
gales to 35 knots after midnight. Snow showers, possibly mixed
with rain in the evening, then a chance of snow showers after
midnight. Waves building to 4 to 7 feet occasionally to 9 feet.
.FRIDAY...North gales to 35 knots diminishing to 10 to 20 knots.
Waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots veering northwest. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-030900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 PM EST Mon Feb 2 2026

.LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Heavy
freezing spray. Isolated snow showers. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. Heavy freezing spray in the evening.
Isolated 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 5 to 15 knots backing northwest by mid
afternoon. Isolated snow showers. Waves subsiding to calm to
2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots backing west late.
Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming
southwest 10 to 20 knots after midnight. Waves subsiding to calm
to 2 feet.
.THURSDAY...Southwest winds 15 to 25 knots veering west in the
afternoon. A chance of snow showers. Freezing spray in the
afternoon. Waves building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots becoming north gales
to 40 knots after midnight. Snow showers likely in the evening.
Heavy freezing spray after midnight. Waves subsiding to 3 to
5 feet occasionally to 7 feet, then 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 9 to 12 feet occasionally
to 15 feet, then subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-030900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 PM EST Mon Feb 2 2026

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. Isolated
snow showers. Waves 3 to 5 feet occasionally to 7 feet.
.TONIGHT...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. Isolated snow showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 10 to 20 knots. Scattered snow
showers. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots backing west by
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...Northwest winds 10 to 20 knots backing
southwest after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. A chance of snow showers. Waves calm
to 2 feet.
.THURSDAY NIGHT...West winds 20 to 30 knots becoming northwest
gales to 40 knots after midnight. Snow showers likely. Waves
building to 5 to 8 feet occasionally to 10 feet.
.FRIDAY...North gales to 40 knots becoming northwest 20 to
30 knots. Heavy freezing spray. Waves building to 10 to 14 feet
occasionally to 18 feet, then subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming west 10 to
20 knots. Waves subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-030900-
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 PM EST Mon Feb 2 2026

.LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. Heavy
freezing spray. Scattered snow showers. Waves 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. Heavy freezing
spray. Scattered 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 diminishing to 10 to
20 knots by late morning, then increasing to 15 to 25 knots by
mid afternoon. Heavy freezing spray in the morning. Scattered
snow showers. Waves subsiding to 3 to 5 feet occasionally to
7 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Scattered snow
showers. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. Isolated snow showers in the morning.
Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots backing
southwest after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet.
.THURSDAY...South winds 15 to 25 knots becoming southwest 20 to
30 knots in the afternoon. A chance of snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT...West winds 20 to 30 knots becoming northwest
gales to 40 knots after midnight. Snow showers in the evening,
then a chance of snow showers after midnight. Freezing spray
after midnight. Waves building to 8 to 11 feet occasionally to
14 feet.
.FRIDAY...North gales to 40 knots. Heavy freezing spray. Waves
building to 11 to 15 feet occasionally to 19 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.SATURDAY...Northwest winds 15 to 25 knots backing west. Heavy
freezing spray. A chance of snow showers. Waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-030900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 PM EST Mon Feb 2 2026

.LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. Freezing
spray. Scattered snow showers. Waves 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. Numerous snow showers in the evening. Scattered snow
showers after midnight. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.TUESDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots. Isolated snow showers. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then veering east late. Scattered snow
showers. Waves subsiding to calm to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots becoming northwest 10 to
20 knots in the afternoon. Scattered snow showers. Waves building
to 2 to 4 feet.
.WEDNESDAY NIGHT...North winds 10 to 20 knots veering south after
midnight. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet.
.THURSDAY...South winds 15 to 25 knots becoming southwest 20 to
30 knots in the afternoon. A chance of snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT...Southwest winds 15 to 25 knots becoming
northwest gales to 35 knots after midnight. Snow showers in the
evening, then a chance of snow showers after midnight. Freezing
spray after midnight. Waves building to 7 to 10 feet occasionally
to 13 feet.
.FRIDAY...North gales to 40 knots. Heavy freezing spray. Waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.SATURDAY...Northwest winds 15 to 25 knots veering east. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-030300-
MAFOR 0222/
Superior West 11710 12820 13810 11800 11600. Waves 2 feet or
less. Wave heights are for ice free areas.

Superior North Central 11732 12832 11822 12820 11810 11710. Waves
3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to 6
feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet Tuesday.

Superior South Central 12732 12732 19737 12722 19727 11720 19727
11720. Waves 5 to 8 feet tonight. Waves 3 to 6 feet subsiding to
2 to 4 feet Tuesday. Wave heights are for ice free areas.

Superior East 11730 19737 11737 12832 19837 12820 19827 11810
11820. Waves 5 to 8 feet tonight. Waves 3 to 6 feet subsiding to
2 to 4 feet Tuesday.

$$

WFO MQT

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weather.gov/mqt/glftable

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weather.gov/greatlakes