985
FZUS63 KMQT 032102
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 PM EST Mon Nov 3 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 30.0 inch ridge will builds over the lake tonight into Tuesday as
a 29.0 inch low moves from Hudson Bay into northern Quebec. A 29.7
inch low then moves over Lake Michigan Tuesday night, followed by a
30.2 inch high pressure moving from the Northern Plains towards the
Mid-Atlantic Wednesday night into Thursday. Afterwards, a 29.4 inch
low then moves through the Great Lakes region Thursday night and
Friday.


LSZ162-040900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EST Mon Nov 3 2025 /301 PM CST Mon Nov 3 2025/

...GALE WARNING IN EFFECT UNTIL 5 PM EST /4 PM CST/ THIS
AFTERNOON...

.LATE THIS AFTERNOON...West winds 20 to 30 knots. Waves 4 to
8 feet occasionally to 10 feet.
.TONIGHT...West winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. Waves subsiding to 1 to 3 feet.
.TUESDAY...West winds 10 to 20 knots becoming southwest 5 to
15 knots by late morning, then backing east by mid afternoon.
Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...East winds 5 to 15 knots backing northeast by
midnight, then becoming north 10 to 20 knots late. A chance of
rain showers. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots backing west in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon. Waves building to 1 to 3 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots veering northwest
after midnight. A chance of rain showers. Waves 1 to 3 feet.
.FRIDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of rain showers. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots becoming north 15 to
25 knots. A chance of rain and snow showers. Waves building to
2 to 4 feet.

$$

LSZ263-040900-
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-
401 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.LATE THIS AFTERNOON...West gales to 40 knots. Waves 9 to 12 feet
occasionally to 15 feet subsiding to 8 to 11 feet occasionally to
14 feet.
.TONIGHT...West gales to 35 knots diminishing to 20 to 30 knots
late. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...West winds 15 to 25 knots backing southwest by late
morning, then diminishing to 10 to 20 knots by mid afternoon.
Waves subsiding to 1 to 3 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots backing east by
midnight, then becoming north 10 to 20 knots late. A chance of
rain showers. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots. A slight chance of
rain showers in the morning. Waves building to 3 to 6 feet
occasionally to 8 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming south 15 to
25 knots in the afternoon. Waves building to 1 to 3 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots veering west after
midnight. Rain showers likely in the evening, then a chance of
rain showers after midnight. Waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.FRIDAY...North gales to 35 knots diminishing to 20 to 30 knots.
A chance of rain showers. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots becoming north 20 to
30 knots. A chance of snow showers, possibly mixed with rain.
Waves building to 3 to 5 feet occasionally to 7 feet.

$$

LSZ264-040900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.LATE THIS AFTERNOON...West gales to 40 knots. Waves 9 to 12 feet
occasionally to 15 feet subsiding to 8 to 11 feet occasionally to
14 feet.
.TONIGHT...West gales to 35 knots diminishing to 20 to 30 knots
late. Waves subsiding to 4 to 7 feet occasionally to 9 feet.
.TUESDAY...West winds 15 to 25 knots becoming southwest 10 to
20 knots by mid afternoon. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest
10 to 20 knots late. A chance of rain showers. Waves subsiding to
calm to 2 feet, then building to 1 to 3 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots. A slight chance of
rain showers. Waves building to 4 to 7 feet occasionally to
9 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to 1 to 3 feet.
.THURSDAY...West winds 5 to 15 knots becoming south 15 to
25 knots in the afternoon. Waves subsiding to calm to 2 feet,
then building to 2 to 4 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots veering west after
midnight. Rain showers likely in the evening, then a chance of
rain showers after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.FRIDAY...North gales to 35 knots diminishing to 20 to 30 knots.
A chance of rain showers. Waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 15 knots becoming north 20 to
30 knots. A chance of snow showers. Waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet.

$$

LSZ265-040900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.LATE THIS AFTERNOON...West gales to 40 knots. Waves 6 to 9 feet
occasionally to 11 feet.
.TONIGHT...West gales to 40 knots diminishing to 20 to 30 knots
late. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY...West winds 15 to 25 knots becoming southwest 10 to
20 knots by mid afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots becoming southeast
5 to 15 knots by midnight, then backing east late. A chance of
showers in the evening, then showers likely after midnight. Waves
calm to 2 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots increasing to gales
to 40 knots in the afternoon. A chance of showers. Waves building
to 4 to 7 feet occasionally to 9 feet.
.WEDNESDAY NIGHT...Northwest gales to 35 knots diminishing to
10 to 20 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots becoming south 20 to
30 knots in the afternoon. Waves building to 1 to 3 feet.
.THURSDAY NIGHT...South winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. Rain showers. Waves building to
2 to 4 feet, then subsiding to 1 to 3 feet.
.FRIDAY...North gales to 35 knots diminishing to 20 to 30 knots.
A chance of rain showers. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 2 to 4 feet.
.SATURDAY...West winds 10 to 20 knots becoming north 20 to
30 knots. A chance of snow showers. A chance of rain showers.
Snow showers likely. Waves subsiding to calm to 2 feet, then
building to 2 to 4 feet.

$$

LSZ266-040900-
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-
401 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.LATE THIS AFTERNOON...West gales to 40 knots. Waves 11 to
15 feet occasionally to 19 feet subsiding to 10 to 14 feet
occasionally to 18 feet.
.TONIGHT...West gales to 40 knots diminishing to 20 to 30 knots
late. Waves subsiding to 6 to 9 feet occasionally to 11 feet.
.TUESDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots becoming south
5 to 15 knots by midnight, then backing east late. A chance of
showers in the evening, then showers after midnight. Waves
subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots increasing to gales
to 35 knots in the afternoon. Showers likely in the morning, then
a chance of showers in the afternoon. Waves building to 8 to
11 feet occasionally to 14 feet.
.WEDNESDAY NIGHT...Northwest gales to 35 knots diminishing to
10 to 20 knots after midnight. A chance of rain showers in the
evening. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...West winds 10 to 20 knots becoming south 20 to
30 knots in the afternoon. A chance of rain showers in the
afternoon. Waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet.
.THURSDAY NIGHT...South winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. Rain showers. Waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...North gales to 35 knots. Snow showers likely. A chance
of rain showers. A chance of snow showers. Waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.SATURDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. A chance of snow showers. Snow showers likely. Waves
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.

$$

LSZ267-040900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.LATE THIS AFTERNOON...West gales to 45 knots. Waves 12 to
17 feet occasionally to 21 feet.
.TONIGHT...West gales to 40 knots. Waves subsiding to 7 to
10 feet occasionally to 13 feet.
.TUESDAY...West winds 20 to 30 knots diminishing to 10 to
20 knots. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots backing southeast
late. A slight chance of showers in the evening, then showers
after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots increasing to gales
to 35 knots in the afternoon. Showers in the morning, then a
chance of showers in the afternoon. Waves building to 8 to
11 feet occasionally to 14 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. A chance of rain showers in the
evening. Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.THURSDAY...West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon. A chance of rain showers in the
afternoon. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.THURSDAY NIGHT...South winds 20 to 30 knots. Rain showers. Waves
building to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...North winds 20 to 30 knots diminishing to 15 to
25 knots. Rain showers. A chance of snow showers. A chance of
rain showers. Waves building to 6 to 9 feet occasionally to
11 feet, then subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 10 to 20 knots veering north. A
chance of snow showers, then snow showers likely. Waves subsiding
to calm to 2 feet, then building to 2 to 4 feet.

$$

LSZ261-040300-
MAFOR 0322/
Superior West...GALE WARNING IN EFFECT...14640 11630 11620 11520
11410. Waves 5 to 9 feet subsiding to 3 to 6 feet tonight. Waves
2 to 4 feet subsiding to 1 to 3 feet Tuesday.

Superior North Central...GALE WARNING IN EFFECT...13650 12640
13630. Waves 7 to 11 feet subsiding to 5 to 9 feet tonight. Waves
4 to 7 feet subsiding to 3 to 6 feet Tuesday.

Superior South Central...GALE WARNING IN EFFECT...13650 12640
12630 11620. Waves 7 to 11 feet subsiding to 4 to 7 feet tonight.
Waves 3 to 6 feet subsiding to 1 to 2 feet Tuesday.

Superior East...GALE WARNING IN EFFECT...13650 12640 12630 11620.
Waves 11 to 16 feet subsiding to 9 to 13 feet tonight. Waves 6 to
10 feet subsiding to 4 to 7 feet Tuesday.

$$

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