437
FZUS63 KMQT 290900
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Thu Jan 29 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 30.2 inch remnant trough over the eastern lake this morning
continues to weaken as a 30.5 inch high over the Dakotas and
Minnesota phases with a strengthening 30.8 inch high pressure over
northern Manitoba today. This eventually weakens the remnant
troughing to 30.5 inches by Friday morning before ridging of 30.6
inches moves over the lake on Saturday as the high builds into the
Plains. By Sunday morning, this high pushes into the Lower
Mississippi Valley, weakening to 30.5 inches as an upstream low
pressure of 29.9 inches moves into northern Minnesota. The low moves
over Lake Superior Sunday night through Monday morning at near 30.0
inches before being replaced by a 30.5 inch high Tuesday morning.


LSZ162-292100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Thu Jan 29 2026 /300 AM CST Thu Jan 29 2026/

.EARLY THIS MORNING...North winds 10 to 20 knots. Isolated snow
showers. Waves 1 to 3 feet.
.TODAY...North winds 10 to 20 knots. Scattered snow showers.
Waves subsiding to calm to 2 feet, then building to 1 to 3 feet.
.TONIGHT...North winds 10 to 20 knots becoming northeast 15 to
25 knots by midnight, then backing north late. Scattered snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.FRIDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.FRIDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Waves building
to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering northwest. Snow
showers likely. Waves subsiding to calm to 2 feet.
.MONDAY...North winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-292100-
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 Thu Jan 29 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING
THROUGH FRIDAY MORNING...

.EARLY THIS MORNING...North winds 5 to 15 knots. Numerous snow
showers. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.TODAY...North winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Scattered snow showers. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots late. Heavy freezing spray. Scattered snow showers.
Waves building to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...North winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. A chance of snow showers. Waves subsiding to
2 to 4 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A slight chance of snow showers. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing southwest in
the afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. A chance
of snow showers. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.MONDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-292100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Thu Jan 29 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM THIS EVENING
THROUGH FRIDAY EVENING...

.EARLY THIS MORNING...North winds 5 to 15 knots. Scattered snow
showers. Waves 3 to 5 feet occasionally to 7 feet subsiding to
2 to 4 feet.
.TODAY...North winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Numerous snow showers. Waves building to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. Heavy freezing spray. Numerous snow showers
in the evening. Scattered snow showers after midnight. Waves
building to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...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. A chance of snow showers.
Waves building to 4 to 7 feet occasionally to 9 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Heavy freezing spray in the evening. A
slight chance of snow showers. Waves subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. A chance
of snow showers. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.MONDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-292100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Thu Jan 29 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT
THROUGH FRIDAY EVENING...

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Scattered
snow showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...Northwest winds 15 to 25 knots veering north by mid
afternoon. Scattered snow showers. Waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...North winds 15 to 25 knots. Scattered snow showers in
the evening, then numerous snow showers after midnight. Waves
building to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...North winds 15 to 25 knots becoming northwest 20 to
30 knots by late morning, then veering north by mid afternoon. A
chance of snow showers. Waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 4 to 7 feet occasionally
to 9 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of snow showers. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots veering west. A chance of
snow showers. Waves calm to 2 feet.
.MONDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. Waves building to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-292100-
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 Thu Jan 29 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH FRIDAY
EVENING...

.EARLY THIS MORNING...North winds 15 to 25 knots. Heavy freezing
spray. Numerous snow showers. Waves 3 to 6 feet occasionally to
8 feet.
.TODAY...North winds 10 to 20 knots. Numerous snow showers. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...North winds 10 to 20 knots. Heavy freezing spray.
Numerous snow showers. Waves building to 3 to 6 feet occasionally
to 8 feet.
.FRIDAY...North winds 15 to 25 knots increasing to 20 to
30 knots. Heavy freezing spray. Snow showers likely. Waves
building to 7 to 10 feet occasionally to 13 feet.
.FRIDAY NIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. Heavy freezing spray. A slight chance of
snow showers. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.SATURDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Waves building
to 1 to 3 feet.
.SUNDAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots. A chance of snow showers. Waves building to 2 to
4 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming north 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-292100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Thu Jan 29 2026

.EARLY THIS MORNING...Southeast winds 10 to 20 knots. Numerous
snow showers. Waves 3 to 5 feet occasionally to 7 feet subsiding
to 2 to 4 feet.
.TODAY...Southeast winds 5 to 15 knots backing east by mid
afternoon. Numerous snow showers. Waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots. Numerous snow showers in
the evening, then scattered snow showers after midnight. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.FRIDAY...North winds 10 to 20 knots increasing to 15 to
25 knots. A chance of snow showers in the morning, then snow
showers likely in the afternoon. Waves building to 4 to 8 feet
occasionally to 10 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots. Heavy freezing spray
in the evening. A slight chance of snow showers in the evening.
Waves subsiding to 2 to 4 feet.
.SATURDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots backing southwest
after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots veering southwest. A chance
of snow showers. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.MONDAY...Northwest winds 10 to 20 knots veering north. A chance
of snow showers. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-291500-
MAFOR 2910/
Superior West...HEAVY FREEZING SPRAY WARNING IN EFFECT...13810
19817 12820 19827 11830 19837 11132 19137 11830 19837. Waves 1 to
3 feet today. Waves 3 to 6 feet tonight.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11720 19727 14827 11837 11827 11822 19827. Waves 3 to 5 feet
subsiding to 2 to 4 feet today. Waves 3 to 6 feet tonight.

Superior South Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
13720 19727 11727 12820 19827 11827 11820 19827. Waves 3 to 6
feet. Wave heights are for ice free areas.

Superior East...HEAVY FREEZING SPRAY WARNING IN EFFECT...11117
11127 11227 11127 13827 11820 19827. Waves 2 to 4 feet today.
Waves 3 to 5 feet tonight.

$$

WFO MQT

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weather.gov/mqt/glftable

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weather.gov/greatlakes