750
FZUS63 KMQT 221544
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1044 AM EST Thu Jan 22 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 29.6 inch low near the Ontario/Quebec border this morning will
lift northeast into northern Quebec by this evening. In the wake of
the low, a 31.0 inch high pressure will be over Saskatchewan,
shifting over the Dakotas Friday and overspreading the Upper Midwest
at around 30.7 inches Saturday. Remnant ridging of at least 30.3
inches remains over Lake Superior through Sunday. A 29.8 inch trough
will approach the lake on Monday evening, eventually moving through
Monday night as the high pressure slides south and east away from
the area.


LSZ162-222345-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1044 AM EST Thu Jan 22 2026 /944 AM CST Thu Jan 22 2026/

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

.REST OF TODAY...Northwest winds 15 to 25 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by mid
afternoon. Scattered snow showers. Heavy freezing spray in the
afternoon. Waves 3 to 5 feet occasionally to 7 feet building to
7 to 10 feet occasionally to 13 feet.
.TONIGHT...Northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots by
midnight. Heavy freezing spray. Scattered snow showers. Waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.FRIDAY...Northwest winds 15 to 25 knots. Scattered snow showers.
Waves subsiding to 1 to 3 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Scattered snow showers. Waves
subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. Scattered snow showers. Waves calm to
2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. A chance of snow
showers. Waves calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
.MONDAY...West winds 15 to 25 knots. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-222345-
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-
1044 AM EST Thu Jan 22 2026

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

.REST OF TODAY...Northwest winds 15 to 25 knots increasing to
20 to 30 knots by mid afternoon. Heavy freezing spray. Scattered
snow showers late in the morning. Numerous snow showers in the
afternoon. Waves 4 to 8 feet occasionally to 10 feet, then
building to 9 to 12 feet occasionally to 15 feet.
.TONIGHT...Northwest winds 20 to 30 knots. Heavy freezing spray.
Numerous snow showers. Waves subsiding to 6 to 9 feet
occasionally to 11 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Heavy freezing spray. Numerous snow showers in the
morning. Scattered snow showers in the afternoon. Waves subsiding
to 3 to 5 feet occasionally to 7 feet.
.FRIDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Scattered snow showers. Waves
subsiding to 1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots. Scattered snow showers.
Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots veering west
after midnight. A chance of snow showers. Waves calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves building to 1 to 3 feet.
.MONDAY...West winds 20 to 30 knots. Heavy freezing spray. Waves
building to 3 to 6 feet occasionally to 8 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-222345-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1044 AM EST Thu Jan 22 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE FRIDAY
NIGHT...

.REST OF TODAY...Northwest winds 20 to 30 knots. Heavy freezing
spray. Scattered snow showers. Waves 6 to 9 feet occasionally to
11 feet building to 8 to 11 feet occasionally to 14 feet.
.TONIGHT...Northwest winds 20 to 30 knots. Heavy freezing spray.
Numerous snow showers. Waves subsiding to 7 to 10 feet
occasionally to 13 feet, then building to 8 to 11 feet
occasionally to 14 feet.
.FRIDAY...Northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots. Heavy
freezing spray. Numerous snow showers in the morning. Scattered
snow showers in the afternoon. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Heavy freezing spray in the
evening. Scattered snow showers. Waves subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Scattered snow showers. Waves subsiding to calm to
2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. A chance of snow
showers. Waves calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots. Waves building to 2 to 4 feet.
.MONDAY...West winds 20 to 30 knots veering northwest. 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.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-222345-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1044 AM EST Thu Jan 22 2026

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE FRIDAY
NIGHT...

.REST OF TODAY...Northwest gales to 35 knots. Heavy freezing
spray. Numerous snow showers. Waves 5 to 8 feet occasionally to
10 feet subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 5 to 8 feet occasionally to 10 feet.
.TONIGHT...Northwest gales to 35 knots. Heavy freezing spray.
Numerous snow showers. Waves building to 6 to 10 feet
occasionally to 13 feet.
.FRIDAY...Northwest gales to 40 knots. Heavy freezing spray.
Numerous snow showers. Waves subsiding to 4 to 7 feet
occasionally to 9 feet.
.FRIDAY NIGHT...Northwest winds 20 to 30 knots becoming west
15 to 25 knots after midnight. Heavy freezing spray in the
evening. Scattered snow showers. Waves subsiding to 1 to 3 feet.
.SATURDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Scattered snow showers. Waves
subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. Waves calm to 2 feet.
.SUNDAY...West winds 10 to 20 knots increasing to 15 to 25 knots.
Waves building to 2 to 4 feet.
.MONDAY...West winds 20 to 30 knots. Waves building to 3 to
6 feet occasionally to 8 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-222345-
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-
1044 AM EST Thu Jan 22 2026

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
MORNING...

.REST OF TODAY...Northwest gales to 35 knots. Heavy freezing
spray. Numerous snow showers. Waves 8 to 11 feet occasionally to
14 feet.
.TONIGHT...Northwest gales to 35 knots. Heavy freezing spray.
Snow showers. Waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet.
.FRIDAY...Northwest gales to 40 knots. Heavy freezing spray. Snow
showers. Waves subsiding to 7 to 10 feet occasionally to 13 feet.
.FRIDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Heavy freezing spray. Numerous
snow showers in the evening. Scattered snow showers after
midnight. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.SATURDAY...West winds 10 to 20 knots. Scattered snow showers.
Waves subsiding to 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
snow showers. Waves 1 to 3 feet.
.SUNDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots. A chance of snow showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.MONDAY...West winds 20 to 30 knots. Heavy freezing spray. A
chance of snow showers. Waves building to 5 to 8 feet
occasionally to 10 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-222345-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1044 AM EST Thu Jan 22 2026

...GALE WARNING IN EFFECT THROUGH FRIDAY AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
MORNING...

.REST OF TODAY...West winds 20 to 30 knots becoming northwest
gales to 35 knots by mid afternoon. Heavy freezing spray. Snow
showers. Waves 8 to 11 feet occasionally to 14 feet building to
9 to 12 feet occasionally to 15 feet, then subsiding to 8 to
11 feet occasionally to 14 feet.
.TONIGHT...Northwest gales to 35 knots becoming north 20 to
30 knots late. Heavy freezing spray. Snow showers. Waves building
to 10 to 14 feet occasionally to 18 feet, then subsiding to 9 to
12 feet occasionally to 15 feet.
.FRIDAY...Northwest winds 20 to 30 knots. Heavy freezing spray.
Snow showers. Waves subsiding to 7 to 10 feet occasionally to
13 feet.
.FRIDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. Heavy freezing spray. Numerous
snow showers. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west in the
afternoon. Numerous snow showers in the morning, then scattered
snow showers in the afternoon. Waves subsiding to 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
snow showers. Waves 1 to 3 feet.
.SUNDAY...South winds 10 to 20 knots veering northwest. A chance
of snow showers. Waves building to 3 to 5 feet occasionally to
7 feet.
.MONDAY...West 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.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-222345-
MAFOR 2216/
Superior West...HEAVY FREEZING SPRAY WARNING IN EFFECT...11732
19737 14742 19747 11732 19737 11742 19747 11732 19737. Waves 3 to
5 feet building to 7 to 10 feet this afternoon. Waves 7 to 11
feet subsiding to 5 to 9 feet tonight. Waves 4 to 7 feet
subsiding to 3 to 6 feet Friday morning.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
12742 19747 14747 12757. Waves 6 to 9 feet this afternoon. Waves
7 to 11 feet tonight. Waves 6 to 10 feet Friday morning.

Superior South Central...GALE WARNING IN EFFECT...HEAVY FREEZING
SPRAY WARNING IN EFFECT...14747 11747 13757. Waves 6 to 9 feet
this afternoon. Waves 7 to 11 feet building to 9 to 12 feet
tonight. Waves 9 to 12 feet Friday morning.

Superior East...GALE WARNING IN EFFECT...HEAVY FREEZING SPRAY
WARNING IN EFFECT...11647 14747 11847 12747. Waves 8 to 11 feet
this afternoon. Waves 9 to 13 feet tonight. Waves 8 to 12 feet
Friday morning.

$$

CB

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

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