562
FZUS63 KMQT 220301
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM EST Wed Jan 21 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 moves east through Ontario and into Quebec this
morning. 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
afternoon as the high pressure slides south and east, away from the
area.


LSZ162-220900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EST Wed Jan 21 2026 /900 PM CST Wed Jan 21 2026/

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

.REST OF TONIGHT...Northwest winds 20 to 30 knots. A slight
chance of snow showers. Heavy freezing spray after midnight.
Waves 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Northwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible. A slight chance
of snow showers. Heavy freezing spray and patchy dense fog in the
afternoon. Waves subsiding to 3 to 5 feet occasionally to 7 feet,
then building to 5 to 8 feet occasionally to 10 feet.
.THURSDAY NIGHT...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
late. Patchy fog in the evening. Heavy freezing spray. A chance
of snow showers. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.FRIDAY...Northwest winds 15 to 25 knots. A chance of snow
showers. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. A chance of snow showers. Waves
subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. 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.

$$

LSZ263-220900-
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-
1000 PM EST Wed Jan 21 2026

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

.REST OF TONIGHT...Northwest winds 20 to 30 knots. Heavy freezing
spray. A chance of snow showers. Waves 4 to 8 feet occasionally
to 10 feet.
.THURSDAY...Northwest winds 20 to 30 knots. Heavy freezing spray.
Patchy dense fog in the afternoon. A chance of snow showers.
Waves building to 5 to 9 feet occasionally to 11 feet.
.THURSDAY NIGHT...Northwest winds 20 to 30 knots. Areas of dense
fog in the evening. Heavy freezing spray. Snow showers likely in
the evening. A chance of snow showers after midnight. Waves
building to 6 to 10 feet occasionally to 13 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Heavy freezing spray. A chance of snow
showers. 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. A chance of snow showers. Waves
subsiding to 1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots. A chance of snow showers.
Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing southwest
after midnight. A chance of snow showers in the evening. 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.

$$

LSZ264-220900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EST Wed Jan 21 2026

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

.REST OF TONIGHT...Northwest winds 15 to 25 knots increasing to
20 to 30 knots late. Heavy freezing spray. A chance of snow
showers. Waves 4 to 8 feet occasionally to 10 feet.
.THURSDAY...Northwest winds 20 to 30 knots. Heavy freezing spray.
A chance of snow showers. Waves building to 6 to 9 feet
occasionally to 11 feet.
.THURSDAY NIGHT...Northwest winds 20 to 30 knots. Areas of dense
fog in the evening. Heavy freezing spray. Snow showers likely.
Waves building to 7 to 10 feet occasionally to 13 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Heavy freezing spray. Snow showers
likely in the morning. A chance of 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. A chance of snow showers. Waves subsiding to 2 to
4 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. A chance of snow showers. Waves subsiding to calm to
2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. A chance of snow
showers in the evening. 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. 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.

$$

LSZ265-220900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EST Wed Jan 21 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE FRIDAY
NIGHT...
...GALE WARNING IN EFFECT FROM 7 AM EST THURSDAY THROUGH FRIDAY
AFTERNOON...

.REST OF TONIGHT...Northwest gales to 35 knots. Heavy freezing
spray. A chance of snow showers late in the evening. Snow showers
likely after midnight. Waves 3 to 6 feet occasionally to 8 feet
building to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...Northwest gales to 40 knots. Heavy freezing spray.
Snow showers likely. Waves building to 5 to 8 feet occasionally
to 10 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.THURSDAY NIGHT...Northwest gales to 40 knots. Patchy fog in the
evening. Heavy freezing spray. Snow showers likely. Waves
building to 7 to 10 feet occasionally to 13 feet.
.FRIDAY...Northwest gales to 35 knots. Heavy freezing spray. Snow
showers likely. 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. Snow showers likely in the evening, then a chance of
snow showers after midnight. Waves subsiding to 2 to 4 feet.
.SATURDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. A chance of snow showers. Waves
subsiding to calm to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. Waves calm to
2 feet.
.SUNDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots. Waves building to 2 to 4 feet.
.MONDAY...West winds 20 to 30 knots. Waves building to 3 to
5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-220900-
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-
1000 PM EST Wed Jan 21 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
MORNING...
...GALE WARNING IN EFFECT FROM 7 AM EST THURSDAY THROUGH FRIDAY
AFTERNOON...

.REST OF TONIGHT...Northwest gales to 35 knots. Heavy freezing
spray. Snow showers likely. Waves 5 to 8 feet occasionally to
10 feet building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 6 to 9 feet occasionally to 11 feet.
.THURSDAY...Northwest gales to 40 knots. Heavy freezing spray.
Snow showers. Waves building to 7 to 11 feet occasionally to
14 feet.
.THURSDAY NIGHT...Northwest gales to 40 knots. Patchy fog in the
evening. Heavy freezing spray. Snow showers. Waves building to
10 to 14 feet occasionally to 18 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. Heavy freezing
spray. Snow showers likely. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. A chance of snow showers. Waves
subsiding to 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots backing southwest
after midnight. 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...Northwest winds 20 to 30 knots backing west. Freezing
spray. A chance of snow showers. Waves building to 4 to 8 feet
occasionally to 10 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-220900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EST Wed Jan 21 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH SATURDAY
MORNING...
...GALE WARNING IN EFFECT FROM 7 AM EST THURSDAY THROUGH FRIDAY
AFTERNOON...

.REST OF TONIGHT...West winds 20 to 30 knots becoming northwest
gales to 35 knots by midnight. Freezing spray. Snow showers
likely. Waves 4 to 7 feet occasionally to 9 feet building to 7 to
10 feet occasionally to 13 feet.
.THURSDAY...West gales to 35 knots veering northwest by mid
afternoon. Heavy freezing spray. Snow showers. Waves building to
7 to 11 feet occasionally to 14 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
20 to 30 knots by midnight, then veering north late. Heavy
freezing spray. Snow showers. Waves building 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 15 to 25 knots diminishing to
10 to 20 knots after midnight. Heavy freezing spray. Snow showers
likely. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west in the
afternoon. A chance of snow showers. Waves subsiding to 2 to
4 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
snow showers. Waves subsiding to 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...Northwest winds 15 to 25 knots becoming west 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.

$$

LSZ261-220900-
MAFOR 2204/
Superior West...HEAVY FREEZING SPRAY WARNING IN EFFECT...16742. A
chance of snow showers Thursday afternoon and Thursday evening.
Waves 3 to 6 feet building to 4 to 7 feet overnight. Waves 4 to 7
feet building to 5 to 8 feet Thursday. Waves 5 to 8 feet Thursday
evening.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
15742 11747 11747 19744. Waves 5 to 8 feet overnight and
Thursday. Waves 6 to 9 feet Thursday evening.

Superior South Central...GALE WARNING IN EFFECT...HEAVY FREEZING
SPRAY WARNING IN EFFECT...11742 11747 12757 11747 13757. Waves 5
to 9 feet overnight and Thursday. Waves 7 to 10 feet Thursday
evening.

Superior East...GALE WARNING IN EFFECT...HEAVY FREEZING SPRAY
WARNING IN EFFECT...14747 14757. Waves 6 to 9 feet overnight.
Waves 6 to 10 feet building to 7 to 11 feet Thursday. Waves 8 to
11 feet Thursday evening.

$$

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