117
FZUS63 KMQT 082101
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 PM EST Sun Feb 8 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 30.5 inch high over the Great Lakes will continue to shift
eastward through Monday afternoon as a 29.7 inch low moves through
the Canadian Prairies. This low will move through Ontario on Monday
night into Tuesday, dragging a 29.7 inch through Lake Superior. The
low will deepen to 29.5 inches by Tuesday night as it moves into
southern Quebec, then weaken thereafter. Tuesday night as high
pressure of 30.3 inches fills in over Manitoba and western Ontario.
This high moves over the lake Thursday morning at 30.4 inches.


LSZ162-090900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EST Sun Feb 8 2026 /300 PM CST Sun Feb 8 2026/

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots
by midnight. A chance of snow showers. Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then diminishing to 10 to 20 knots by
mid afternoon. A slight chance of snow showers in the morning,
then a chance of rain showers, possibly mixed with sleet and
freezing rain in the afternoon. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 10 to 20 knots increasing to 15 to
25 knots late. A chance of snow showers, possibly mixed with rain
in the evening. Waves calm to 2 feet.
.TUESDAY...West winds 15 to 25 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming north less
than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds less than 10 knots becoming southwest
5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-090900-
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 Sun Feb 8 2026

.LATE THIS AFTERNOON...South winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...South winds 10 to 20 knots. A chance of snow showers
after midnight. Waves building to 2 to 4 feet.
.MONDAY...South winds 15 to 25 knots becoming southwest 10 to
20 knots. A chance of snow showers. A chance of rain showers,
possibly mixed with freezing rain and sleet in the afternoon.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 10 to 20 knots veering west by
midnight, then increasing to 15 to 25 knots late. Rain showers
likely in the evening. A chance of snow showers. Waves subsiding
to calm to 2 feet, then building to 2 to 4 feet.
.TUESDAY...West winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots. Waves subsiding
to calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds less than 10 knots becoming southwest
5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-090900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 PM EST Sun Feb 8 2026

.LATE THIS AFTERNOON...South winds 10 to 20 knots. Waves 2 to
4 feet.
.TONIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots late. A chance of snow showers after midnight. Waves
building to 3 to 6 feet occasionally to 8 feet.
.MONDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then veering southwest by mid
afternoon. A chance of snow showers. A chance of rain showers in
the afternoon. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...Southwest winds 10 to 20 knots veering west by
midnight, then increasing to 15 to 25 knots late. A chance of
snow showers. Waves building to 3 to 5 feet occasionally to
7 feet.
.TUESDAY...West winds 20 to 30 knots veering northwest in the
afternoon. Waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet.
.TUESDAY NIGHT...Northwest winds 20 to 30 knots. Freezing spray
in the evening. Waves subsiding to 3 to 5 feet occasionally to
7 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds less than 10 knots increasing to 5 to
15 knots. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-090900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 PM EST Sun Feb 8 2026

...GALE WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE TUESDAY
NIGHT...

.LATE THIS AFTERNOON...South winds 15 to 25 knots. Waves 1 to
3 feet.
.TONIGHT...South winds 15 to 25 knots. A slight chance of snow
showers after midnight. Waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.MONDAY...South winds 15 to 25 knots. A slight chance of snow
showers. A chance of rain showers and freezing rain in the
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...South winds 15 to 25 knots veering west late.
Sleet with rain showers and freezing rain likely in the evening.
Snow showers likely. Waves calm to 2 feet.
.TUESDAY...West winds 20 to 30 knots increasing to gales to
40 knots in the afternoon. A slight chance of snow showers in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Northwest gales to 35 knots. Waves 2 to 4 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-090900-
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 Sun Feb 8 2026

...GALE WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE TUESDAY
NIGHT...

.LATE THIS AFTERNOON...South winds 15 to 25 knots. Waves 3 to
5 feet occasionally to 7 feet.
.TONIGHT...South winds 20 to 30 knots. Freezing spray. A chance
of snow showers after midnight. Waves building to 5 to 8 feet
occasionally to 10 feet.
.MONDAY...South winds 20 to 30 knots. Freezing spray in the
morning. A chance of snow showers. A chance of freezing rain in
the afternoon. Waves subsiding to 4 to 7 feet occasionally to
9 feet.
.MONDAY NIGHT...South winds 15 to 25 knots veering west late.
Freezing rain and sleet in the evening. Snow showers. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY...West gales to 35 knots veering northwest in the
afternoon. A chance of snow showers. Waves building to 8 to
11 feet occasionally to 14 feet.
.TUESDAY NIGHT...Northwest gales to 35 knots. Freezing spray.
Waves subsiding to 5 to 8 feet occasionally to 10 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. Freezing spray. Waves subsiding to
3 to 5 feet occasionally to 7 feet.
.WEDNESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots. Waves building to 1 to
3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-090900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 PM EST Sun Feb 8 2026

...GALE WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE TUESDAY
NIGHT...

.LATE THIS AFTERNOON...South winds 15 to 25 knots. Waves 1 to
3 feet.
.TONIGHT...South winds 15 to 25 knots. A slight chance of snow
showers after midnight. Waves building to 3 to 6 feet
occasionally to 8 feet.
.MONDAY...South winds 20 to 30 knots. A chance of snow showers in
the morning, then snow showers likely in the afternoon. Waves
3 to 6 feet occasionally to 8 feet.
.MONDAY NIGHT...South winds 20 to 30 knots diminishing to 15 to
25 knots by midnight, then veering southwest late. Snow showers.
Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.TUESDAY...West winds 20 to 30 knots increasing to gales to
35 knots in the afternoon. A chance of snow showers. Waves
building to 8 to 11 feet occasionally to 14 feet.
.TUESDAY NIGHT...Northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. Freezing spray after midnight. Waves
subsiding to 5 to 8 feet occasionally to 10 feet.
.WEDNESDAY...North winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. Freezing spray in the morning. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-090300-
MAFOR 0822/
Superior West 11300 12410 12420 13520. A chance of rain showers
Monday afternoon. Waves 1 foot or less tonight. Waves 1 to 3 feet
Monday. Wave heights are for ice free areas.

Superior North Central 11420 15430 11420. A chance of snow
showers overnight and Monday. Waves 1 to 3 feet building to 3 to
6 feet tonight. Waves 3 to 5 feet Monday.

Superior South Central 12430 11440 12430 12440 11430. A chance of
light freezing rain Monday afternoon. Waves 2 to 4 feet building
to 3 to 5 feet tonight. Waves 3 to 5 feet Monday. Wave heights
are for ice free areas.

Superior East 12430 15440. A chance of snow showers Monday. Waves
2 to 4 feet building to 4 to 7 feet tonight. Waves 5 to 8 feet
Monday.

$$

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