422
FZUS63 KMQT 242101
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 PM 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...

30.7 inch high pressure centered over the Lower Great Lakes
maintains 30.6 inch ridging over Lake Superior this evening. Ridging
over the lake weakens to 30.3 inches into Sunday, then further to
around 30.1 inches into Monday, 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.


LSZ162-250900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EST Sat Jan 24 2026 /300 PM CST Sat Jan 24 2026/

.LATE THIS AFTERNOON...Southwest winds 10 to 20 knots. Scattered
snow showers. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering northwest late.
A chance of snow showers. Waves 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 increasing to
15 to 25 knots by midnight, then backing west late. A slight
chance of snow showers after midnight. Waves 1 to 3 feet.
.MONDAY...West winds 15 to 25 knots becoming southwest 20 to
30 knots in the afternoon. A slight chance of snow showers 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 in the
evening. Waves subsiding to 2 to 4 feet.
.TUESDAY...Northwest winds 15 to 25 knots. Waves subsiding to
1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. 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.
.THURSDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-250900-
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 PM EST Sat Jan 24 2026

.LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. Scattered
snow showers. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then veering northwest late. A chance of
snow showers. Waves 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 becoming southwest 20 to
30 knots in the afternoon. A slight 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. Heavy freezing spray
in the morning. Waves subsiding to 3 to 5 feet occasionally to
7 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...North winds 10 to 20 knots. Waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...North winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-250900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 PM EST Sat Jan 24 2026

.LATE THIS AFTERNOON...West winds 10 to 20 knots. Scattered snow
showers. Waves 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.
.SUNDAY...Northwest winds 10 to 20 knots. A slight 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 after midnight. Waves building to 2 to 4 feet.
.MONDAY...West winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. A slight 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. Heavy freezing spray.
Waves 3 to 6 feet occasionally to 8 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Heavy freezing spray in the
evening. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...North winds 10 to 20 knots increasing to 15 to
25 knots. Heavy freezing spray. Waves building to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY...North winds 15 to 25 knots. Waves subsiding to 2 to
4 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-250900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 PM EST Sat Jan 24 2026

.LATE THIS AFTERNOON...Southwest winds 10 to 20 knots. Isolated
snow showers. Waves calm to 2 feet.
.TONIGHT...Southwest winds 10 to 20 knots veering west by
midnight. 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 slight 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 late. A slight chance of snow showers. Waves
building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...West winds 20 to 30 knots. A slight chance of snow
showers. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...Southwest winds 20 to 30 knots veering west after
midnight. A chance of snow showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.TUESDAY...Northwest gales to 35 knots. Heavy freezing spray.
Waves building to 4 to 7 feet occasionally to 9 feet.
.TUESDAY NIGHT...Northwest winds 20 to 30 knots. Heavy freezing
spray in the evening. Waves subsiding to 3 to 5 feet occasionally
to 7 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming north 20 to
30 knots. Heavy freezing spray. Waves subsiding to 2 to 4 feet,
then building to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots. Heavy freezing spray. Waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-250900-
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 PM EST Sat Jan 24 2026

.LATE THIS AFTERNOON...West winds 10 to 20 knots. Scattered snow
showers. Waves 2 to 4 feet 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 by midnight. Heavy freezing spray. 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. Heavy freezing spray. A chance of snow showers. Waves
3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...Southwest winds 20 to 30 knots veering west after
midnight. Freezing spray. A chance of snow showers. Waves 3 to
6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. Freezing spray. A chance of snow
showers. Waves building to 7 to 10 feet occasionally to 13 feet.
.TUESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Freezing spray. A chance of snow
showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...North winds 15 to 25 knots increasing to 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.
.THURSDAY...North winds 20 to 30 knots. Heavy freezing spray. A
chance of snow showers. Waves 4 to 7 feet occasionally to 9 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-250900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 PM EST Sat Jan 24 2026

.LATE THIS AFTERNOON...Southwest winds 15 to 25 knots. Numerous
snow showers. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 20 knots. A chance of snow
showers in the evening. Waves subsiding to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots backing south by late
morning, then veering west by mid afternoon. A slight chance of
snow showers in the morning. Snow showers likely in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Freezing spray. A
chance of snow showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.MONDAY...Northwest winds 15 to 25 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...Southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Heavy freezing spray. A chance of
snow showers. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.TUESDAY...Northwest winds 15 to 25 knots. Freezing spray. A
chance of snow showers. Waves building to 6 to 9 feet
occasionally to 11 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Freezing spray in the evening. A
chance of snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY...North winds 10 to 20 knots increasing to 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...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.

$$

LSZ261-250300-
MAFOR 2422/
Superior West 11520 19527 12520 11620 11720 12710 11720. Waves 1
to 3 feet.

Superior North Central 11620 19627 12520 11627 14720. Waves 1 to
3 feet building to 2 to 4 feet tonight. Waves 2 to 4 feet Sunday.

Superior South Central 12510 11520 13620 11720 11730. A chance of
snow showers Sunday. Waves 1 to 3 feet tonight. Waves 1 to 3 feet
building to 3 to 5 feet Sunday.

Superior East 11627 12520 11530 12520 11527 11737. Waves 2 to 4
feet tonight. Waves 2 to 4 feet building to 3 to 5 feet Sunday.

$$

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