870
FZUS63 KMQT 240901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Sat Jan 24 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...

High pressure ridging of 30.6 to 30.7 inches is expected over Lake
Superior today as a 30.9 inch high holds over the Great Lakes.
Ridging over the lake weakens to 30.3 inches on Sunday as a 29.6
inch low moves northeast along the Atlantic Coast. A 29.8 inch
clipper low crosses the lake Monday night into Tuesday. Another
clipper low, much weaker at 30.1 inches, grazes the northeast
portion of the lake on Wednesday. A strong high pressure descending
from the Canadian Prairie around 30.7 inches late next week brings
ridging back to Lake Superior, likely persisting into next weekend.


LSZ162-242100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Sat Jan 24 2026 /300 AM CST Sat Jan 24 2026/

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Scattered
snow showers. Waves calm to 2 feet.
.TODAY...West winds 10 to 20 knots backing southwest by mid
afternoon. Scattered snow showers. Waves building to 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering northwest late.
A chance of snow showers. Waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots. A slight chance of snow showers. Waves subsiding to
calm to 2 feet, then building to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots backing west after
midnight. Waves 1 to 3 feet.
.MONDAY...West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.
.MONDAY NIGHT...West winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. A chance of snow showers. Waves
subsiding to 2 to 4 feet.
.TUESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots veering north. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-242100-
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 Sat Jan 24 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Numerous
snow showers. Waves 2 to 4 feet.
.TODAY...Northwest winds 10 to 20 knots backing southwest.
Numerous snow showers in the morning. Scattered snow showers in
the afternoon. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering northwest late.
A chance of snow showers. Waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.SUNDAY...North winds 5 to 15 knots becoming northwest 10 to
20 knots. A chance of snow showers. Waves subsiding to 1 to
3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. A slight chance
of snow showers. Waves building to 2 to 4 feet.
.MONDAY...West winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. A chance of snow showers. Heavy freezing spray
in the afternoon. Waves building to 3 to 6 feet occasionally to
8 feet.
.MONDAY NIGHT...West winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. Heavy freezing spray. A chance of
snow showers. Waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 15 to 25 knots. Waves subsiding to
2 to 4 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. Waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-242100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Sat Jan 24 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Scattered
snow showers. Waves 2 to 4 feet.
.TODAY...Northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. Scattered snow showers. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering northwest late.
A chance of snow showers. Waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots. A chance of snow
showers. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. A slight chance
of snow showers. Waves building to 2 to 4 feet.
.MONDAY...West winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. A chance of snow showers. Heavy freezing spray
in the afternoon. Waves building to 3 to 6 feet occasionally to
8 feet.
.MONDAY NIGHT...West winds 20 to 30 knots becoming northwest
15 to 25 knots after midnight. Freezing spray. A chance of snow
showers. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Heavy freezing spray. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 25 knots. Waves building to 3 to
6 feet occasionally to 8 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-242100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Sat Jan 24 2026

.EARLY THIS MORNING...West winds 15 to 25 knots. Scattered snow
showers. Waves 2 to 4 feet.
.TODAY...West winds 15 to 25 knots diminishing to 10 to 20 knots.
Scattered snow showers. Waves subsiding to calm to 2 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering west by
midnight, then increasing to 15 to 25 knots late. A slight chance
of snow showers in the evening. Waves building to 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 2 to
4 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. A slight chance of snow showers.
Waves building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...West winds 20 to 30 knots. Waves subsiding to 2 to
4 feet.
.MONDAY NIGHT...West winds 20 to 30 knots. A chance of snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.TUESDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Heavy freezing spray. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots veering north. A
chance of snow showers. Heavy freezing spray. Waves subsiding to
2 to 4 feet, then building to 4 to 7 feet occasionally to 9 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-242100-
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 Sat Jan 24 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST THIS
MORNING...

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Heavy
freezing spray. Numerous snow showers. Waves 4 to 7 feet
occasionally to 9 feet.
.TODAY...Northwest winds 15 to 25 knots becoming west 10 to
20 knots. Numerous snow showers in the morning, then scattered
snow showers in the afternoon. Waves subsiding to 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering west late. A
chance of snow showers. Waves building to 2 to 4 feet.
.SUNDAY...West winds 10 to 20 knots veering northwest by late
morning, then increasing to 15 to 25 knots by mid afternoon. A
chance of snow showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. A chance of snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest winds 20 to 30 knots backing west in the
afternoon. Freezing spray. A chance of snow showers. Waves
building to 4 to 7 feet occasionally to 9 feet.
.MONDAY NIGHT...West winds 20 to 30 knots. Freezing spray. A
chance of snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet.
.TUESDAY...Northwest winds 20 to 30 knots. Heavy freezing spray.
A chance of snow showers. Waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming north 20 to
30 knots. A chance of snow showers. Heavy freezing spray. Waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
4 to 7 feet occasionally to 9 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-242100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Sat Jan 24 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST THIS
MORNING...

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Numerous
snow showers. Waves 4 to 7 feet occasionally to 9 feet.
.TODAY...Northwest winds 10 to 20 knots backing west by late
morning, then increasing to 15 to 25 knots by mid afternoon.
Numerous snow showers. Waves subsiding to 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots. A chance of snow
showers in the evening. Waves 2 to 4 feet.
.SUNDAY...South winds 10 to 20 knots veering southwest by late
morning, then veering northwest by mid afternoon. A chance of
snow showers. Waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. A chance of snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest winds 10 to 20 knots becoming west 15 to
25 knots in the afternoon. Freezing spray. A chance of snow
showers. Waves building to 4 to 7 feet occasionally to 9 feet.
.MONDAY NIGHT...West winds 15 to 25 knots. Heavy freezing spray.
A chance of snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.TUESDAY...Northwest winds 20 to 30 knots becoming north 15 to
25 knots. Freezing spray. A chance of snow showers. Waves
building to 6 to 9 feet occasionally to 11 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...North winds 10 to 20 knots becoming northeast 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.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-241500-
MAFOR 2410/
Superior West 11610 19617 11630 19637 13520 19527 12520 11620.
Waves 1 to 3 feet building to 2 to 4 feet today. Waves 2 to 4
feet tonight.

Superior North Central 11720 19727 11720 11710 19717 11610 19617
11620 19627 12520 11627. Waves 2 to 4 feet subsiding to 1 to 3
feet today. Waves 2 to 4 feet tonight.

Superior South Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
13620 19627 11620 12510 11520 11620. Waves 3 to 5 feet subsiding
to 1 to 3 feet today. Waves 1 to 3 feet tonight.

Superior East...HEAVY FREEZING SPRAY WARNING IN EFFECT...13727
11617 11627 11520 12530. Waves 4 to 7 feet subsiding to 3 to 5
feet today. Waves 2 to 4 feet tonight.

$$

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