872
FZUS63 KMQT 261552 AAB
GLFLS

Open Lake Forecast for Lake Superior...UPDATED
National Weather Service Marquette MI
1052 AM EST Wed Nov 26 2025

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 29.3 inch low over the central U.P. this morning continues towards
the Straits of Mackinac this evening. The low shifts east into
Ontario tonight and then into Quebec at 29.4 inches on Thanksgiving.
Meanwhile, a 30.6 inch high over the Canadian Prairies weakens
slightly to 30.5 inches as it moves into the Mississippi River
Valley through Friday, with 30.3 inch high pressure persisting over
Lake Superior Friday through Saturday. A 29.7 inch low over the
Southern Plains Saturday morning will track into Lower Michigan by
Sunday morning, resulting in 30.0 inch troughing over Lake
Superior. A 30.4 inch high then rebuilds over the Great Lakes on
Monday.


LSZ162-270000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1052 AM EST Wed Nov 26 2025 /952 AM CST Wed Nov 26 2025/

...GALE WARNING IN EFFECT THROUGH THURSDAY MORNING...

.REST OF TODAY...North gales to 45 knots. A chance of snow. Waves
12 to 17 feet occasionally to 21 feet subsiding to 10 to 14 feet
occasionally to 18 feet.
.TONIGHT...Northwest gales to 40 knots. Isolated snow showers.
Waves subsiding to 6 to 9 feet occasionally to 11 feet.
.THURSDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Isolated snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.THURSDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. Isolated snow showers in the
evening. Waves subsiding to 2 to 4 feet.
.FRIDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. Waves subsiding to calm to 2 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.SATURDAY...Northeast winds 5 to 15 knots becoming north 10 to
20 knots. A chance of snow showers. Waves building to 1 to
3 feet.
.SUNDAY...Northwest winds 15 to 25 knots backing west. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.

$$

LSZ263-270000-
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-
1052 AM EST Wed Nov 26 2025

...STORM WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT THROUGH THURSDAY MORNING...

.REST OF TODAY...North storm force winds to 55 knots diminishing
to gales to 45 knots by mid afternoon. Snow. Waves 17 to 22 feet
occasionally to 28 feet subsiding to 15 to 20 feet occasionally
to 25 feet.
.TONIGHT...North gales to 45 knots becoming northwest gales to
40 knots late. Scattered snow showers. Waves subsiding to 9 to
12 feet occasionally to 15 feet.
.THURSDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots by mid afternoon. Scattered snow showers. Waves
subsiding to 6 to 9 feet occasionally to 11 feet.
.THURSDAY NIGHT...Northwest winds 20 to 30 knots. Scattered snow
showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. A slight chance of snow showers in the
morning. Waves subsiding to calm to 2 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.SATURDAY...East winds 5 to 15 knots becoming north 15 to
25 knots. A chance of snow showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SUNDAY...Northwest winds 20 to 30 knots. A chance of snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet.

$$

LSZ264-270000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1052 AM EST Wed Nov 26 2025

...STORM WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...
...GALE WARNING IN EFFECT THROUGH THURSDAY EVENING...

.REST OF TODAY...North storm force winds to 55 knots diminishing
to gales to 45 knots by mid afternoon. Snow. Waves 17 to 22 feet
occasionally to 28 feet subsiding to 15 to 20 feet occasionally
to 25 feet.
.TONIGHT...North gales to 45 knots. Snow showers in the evening,
then scattered snow showers after midnight. Waves subsiding to
12 to 17 feet occasionally to 21 feet.
.THURSDAY...North gales to 40 knots becoming northwest gales to
35 knots by mid afternoon. Scattered snow showers. Waves
subsiding to 9 to 12 feet occasionally to 15 feet.
.THURSDAY NIGHT...Northwest gales to 35 knots diminishing to
20 to 30 knots after midnight. Scattered snow showers. Waves
subsiding to 5 to 8 feet occasionally to 10 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 10 to
20 knots in the afternoon. A slight 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. Waves subsiding to calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots becoming northeast
15 to 25 knots. A chance of snow showers. Waves building to 3 to
5 feet occasionally to 7 feet.
.SUNDAY...Northwest winds 20 to 30 knots. 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.

$$

LSZ265-270000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1052 AM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...STORM WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
THIS EVENING...

.REST OF TODAY...Northeast gales to 45 knots becoming north storm
force winds to 50 knots. Rain late in the morning. Snow. A slight
chance of rain in the afternoon. Waves 15 to 20 feet occasionally
to 25 feet.
.TONIGHT...North storm force winds to 55 knots becoming northwest
storm force winds to 50 knots late. Isolated thunderstorms in the
evening. Snow showers. Waves building to 17 to 22 feet
occasionally to 28 feet, then subsiding to 15 to 20 feet
occasionally to 25 feet.
.THURSDAY...Northwest gales to 45 knots. Snow showers. Waves
subsiding to 10 to 14 feet occasionally to 18 feet.
.THURSDAY NIGHT...Northwest gales to 40 knots. Snow showers in
the evening, then scattered snow showers after midnight. Waves
subsiding to 6 to 9 feet occasionally to 11 feet.
.FRIDAY...Northwest winds 20 to 30 knots. A chance of snow
showers. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots becoming west 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 becoming east 15 to
25 knots. A chance of snow showers, then snow showers. Waves
building to 2 to 4 feet.
.SUNDAY...Northwest winds 20 to 30 knots backing west. Snow
showers likely, then a chance of snow showers. Waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 2 to
4 feet.

$$

LSZ266-270000-
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-
1052 AM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
...STORM WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
THIS EVENING...

.REST OF TODAY...Northeast gales to 45 knots becoming north storm
force winds to 50 knots by mid afternoon. Snow, possibly mixed
with rain. Waves 15 to 20 feet occasionally to 25 feet building
to 17 to 22 feet occasionally to 28 feet.
.TONIGHT...North storm force winds to 55 knots. Snow showers and
isolated thunderstorms. Waves 17 to 22 feet occasionally to
28 feet.
.THURSDAY...North storm force winds to 50 knots diminishing to
gales to 45 knots by late morning, then backing northwest by mid
afternoon. Snow showers. Waves subsiding to 15 to 20 feet
occasionally to 25 feet.
.THURSDAY NIGHT...Northwest gales to 40 knots. Snow showers.
Waves subsiding to 9 to 12 feet occasionally to 15 feet.
.FRIDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. Snow showers in the morning, then a
chance of snow showers in the afternoon. Waves subsiding to 4 to
7 feet occasionally to 9 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots. Snow showers
likely in the evening. A chance of snow showers after midnight.
Waves subsiding to 1 to 3 feet.
.SATURDAY...West winds 5 to 15 knots becoming east 15 to
25 knots. A chance of snow showers, then snow showers. Waves
subsiding to calm to 2 feet, then building to 2 to 4 feet.
.SUNDAY...Northwest gales to 35 knots. Snow showers likely. Waves
building to 5 to 9 feet occasionally to 11 feet.

$$

LSZ267-270000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1052 AM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT FROM 4 PM EST THIS AFTERNOON THROUGH
LATE THURSDAY NIGHT...

.REST OF TODAY...East gales to 35 knots becoming north gales to
40 knots by mid afternoon. Rain. Snow in the afternoon. Waves
9 to 12 feet occasionally to 15 feet building to 10 to 14 feet
occasionally to 18 feet.
.TONIGHT...North gales to 45 knots increasing to gales to
45 knots with a few storm force gusts to 50 knots possible late.
Snow showers. Waves building to 15 to 20 feet occasionally to
25 feet.
.THURSDAY...North gales to 45 knots. Snow showers. Waves
subsiding to 12 to 17 feet occasionally to 21 feet.
.THURSDAY NIGHT...North gales to 40 knots. Snow showers. Waves
subsiding to 8 to 11 feet occasionally to 14 feet.
.FRIDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. Snow showers. Waves subsiding to 4 to
7 feet occasionally to 9 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots. Snow showers in
the evening, then a chance of snow showers after midnight. Waves
subsiding to 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots backing southeast. Snow
showers. Waves subsiding to calm to 2 feet.
.SUNDAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots. Snow showers. Waves building to 5 to 9 feet
occasionally to 11 feet.

$$
LSZ261-270000-
MAFOR 2616 AMD/
Superior West...STORM WARNING IN EFFECT...11867 11860 12750 19757
13750 11740. Waves 14 to 18 feet subsiding to 12 to 16 feet this
afternoon. Waves 10 to 14 feet subsiding to 7 to 11 feet tonight.
Waves 6 to 9 feet Thursday morning.

Superior North Central...STORM WARNING IN EFFECT...11177 11867
12877 12867 11860 19867 11750 19757. Waves 16 to 21 feet
subsiding to 15 to 20 feet this afternoon. Waves 14 to 19 feet
subsiding to 13 to 17 feet tonight. Waves 12 to 16 feet Thursday
morning.

Superior South Central...STORM WARNING IN EFFECT...11877 11867
13877 13767. Waves 15 to 20 feet this afternoon. Waves 16 to 21
feet subsiding to 15 to 20 feet tonight. Waves 15 to 19 feet
Thursday morning.

Superior East...STORM WARNING IN EFFECT...12157 11857 14867
11867. Waves 10 to 15 feet this afternoon. Waves 10 to 14 feet
building to 14 to 18 feet tonight. Waves 14 to 18 feet Thursday
morning.

$$

CB

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weather.gov/mqt/glftable

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weather.gov/greatlakes