687
FZUS63 KMQT 271456
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
956 AM EST Tue Jan 27 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 29.7 inch low just east of Lake Superior this morning moves toward
the St. Lawrence Seaway by this afternoon as it weakens to 29.8
inches. Afterwards, a much weaker low grazes the northeast portion
of the lake at 30.0 inches tonight into Wednesday. Remnant troughing
gradually weakens over the lake Thursday through Friday before
strong high pressure around 31.0 inches descending from the Canadian
Prairies brings ridging of around 30.6 inches back over Lake
Superior on Saturday.


LSZ162-272100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
956 AM EST Tue Jan 27 2026 /856 AM CST Tue Jan 27 2026/

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE TONIGHT...

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

Note, wave height forecasts are for ice free areas.

$$

LSZ263-272100-
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-
956 AM EST Tue Jan 27 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
MORNING...

.REST OF TODAY...North winds 20 to 30 knots becoming northwest
15 to 25 knots. Heavy freezing spray. A chance of snow showers.
Waves 6 to 9 feet occasionally to 11 feet subsiding to 4 to
7 feet occasionally to 9 feet, then building to 5 to 8 feet
occasionally to 10 feet.
.TONIGHT...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots late. Heavy freezing spray. A chance of snow showers.
Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots veering north by late
morning, then backing northwest by mid afternoon. A chance of
snow showers. Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 10 to 20 knots. A chance of snow
showers. Waves building to 2 to 4 feet.
.THURSDAY...North winds 10 to 20 knots. A chance of snow showers.
Waves 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots. Waves building to
3 to 5 feet occasionally to 7 feet.
.FRIDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to 1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest. Waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-272100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
956 AM EST Tue Jan 27 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
MORNING...

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

Note, wave height forecasts are for ice free areas.

$$

LSZ265-272100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
956 AM EST Tue Jan 27 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 PM EST THIS
EVENING...

.REST OF TODAY...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots by
mid afternoon. A chance of snow showers. Waves 1 to 3 feet
subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. A chance of snow showers. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots. A chance of snow showers. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. A chance of snow showers. Waves
calm to 2 feet.
.THURSDAY...North winds 15 to 25 knots. A chance of snow showers.
Waves calm to 2 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots. A chance of snow
showers. Waves calm to 2 feet.
.FRIDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots. A chance of snow showers. Waves calm to 2 feet.
.SATURDAY...North winds 10 to 20 knots backing southwest. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-272100-
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-
956 AM EST Tue Jan 27 2026

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...
...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH WEDNESDAY
EVENING...

.REST OF TODAY...Northwest gales to 40 knots. Heavy freezing
spray. Snow showers late in the morning. A chance of snow showers
in the afternoon. Waves 7 to 10 feet occasionally to 13 feet
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. Heavy freezing spray. A chance of snow showers in
the evening. Snow showers likely after midnight. Waves subsiding
to 5 to 8 feet occasionally to 10 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots. Heavy freezing spray. Snow showers likely. Waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.WEDNESDAY NIGHT...North winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Heavy freezing spray. Snow showers
likely. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...North winds 15 to 25 knots. A chance of snow showers.
Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.THURSDAY NIGHT...North winds 20 to 30 knots. Heavy freezing
spray. A chance of snow showers. Waves building to 4 to 7 feet
occasionally to 9 feet.
.FRIDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots. Heavy freezing spray. A chance of snow showers. Waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 5 feet occasionally to 7 feet.
.SATURDAY...North winds 10 to 20 knots backing southwest. Waves
subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-272100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
956 AM EST Tue Jan 27 2026

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

.REST OF TODAY...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible veering north by late morning,
then becoming northwest 20 to 30 knots by mid afternoon. Heavy
freezing spray. Snow showers. Waves 6 to 9 feet occasionally to
11 feet building to 9 to 12 feet occasionally to 15 feet, then
subsiding to 7 to 10 feet occasionally to 13 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 10 to
20 knots. Heavy freezing spray. Snow showers. Waves subsiding to
5 to 8 feet occasionally to 10 feet.
.WEDNESDAY...Northeast winds 10 to 20 knots becoming north 15 to
25 knots. Heavy freezing spray in the morning. Snow showers.
Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. A chance of snow showers. Waves
subsiding to 2 to 4 feet.
.THURSDAY...Northeast winds 10 to 20 knots backing north in the
afternoon. A chance of snow showers. Waves subsiding to 1 to
3 feet, then building to 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots. A chance of snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.FRIDAY...North winds 15 to 25 knots. A chance of snow showers.
Waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 2 to 4 feet.
.SATURDAY...North winds 10 to 20 knots. Waves subsiding to calm
to 2 feet, then building to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-272100-
MAFOR 2716/
Superior West...HEAVY FREEZING SPRAY WARNING IN EFFECT...12732
11642 11742 11732 13720. A chance of snow showers overnight and
Wednesday morning. Waves 3 to 6 feet this afternoon. Waves 4 to 7
feet subsiding to 3 to 6 feet tonight. Waves 2 to 4 feet
Wednesday morning.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11742 11732 12742 12732 11737 11732. Waves 6 to 9 feet subsiding
to 4 to 7 feet this afternoon. Waves 5 to 8 feet subsiding to 3
to 6 feet tonight. Waves 3 to 6 feet Wednesday morning.

Superior South Central...GALE WARNING IN EFFECT...HEAVY FREEZING
SPRAY WARNING IN EFFECT...11752 13742 11740 13730. A chance of
snow showers this afternoon, this evening, and Wednesday morning.
Waves 8 to 11 feet subsiding to 6 to 9 feet this afternoon. Waves
5 to 8 feet subsiding to 3 to 6 feet tonight. Waves 3 to 6 feet
Wednesday morning. Wave heights are for ice free areas.

Superior East...GALE WARNING IN EFFECT...HEAVY FREEZING SPRAY
WARNING IN EFFECT...11847 13747 12737 12827. Waves 7 to 11 feet
this afternoon. Waves 6 to 10 feet tonight. Waves 5 to 8 feet
Wednesday morning.

$$

WFO MQT

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

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