538
FZUS63 KMQT 301501
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 AM EST Fri Jan 30 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 of 30.9 inches sags south today, reaching the Central
Plains at 30.8 inches by Saturday morning. Throughout Saturday, a
29.9 inch low will move from Saskatchewan to southern Manitoba,
weakening to a 30.0 inch remnant trough by the time it reaches Lake
Superior Sunday evening. As the trough further weakens to 30.1
inches over Georgian Bay Monday, a 30.3 inch high will move over
northwest Ontario. This high builds to 30.4 inches Tuesday as it
settles over the Great Lakes basin through Wednesday.


LSZ162-302100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 AM EST Fri Jan 30 2026 /900 AM CST Fri Jan 30 2026/

.REST OF TODAY...North winds 10 to 20 knots. A slight chance of
snow showers. Waves 2 to 4 feet subsiding to calm to 2 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Waves building
to 2 to 4 feet.
.SUNDAY...Southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. A chance of snow showers in the
morning, then snow showers likely in the afternoon. Waves
subsiding to calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering east. Waves calm to
2 feet.
.TUESDAY...East winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-302100-
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-
1000 AM EST Fri Jan 30 2026

.REST OF TODAY...North winds 10 to 20 knots. A chance of snow
showers. Waves 3 to 5 feet occasionally to 7 feet subsiding to
2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. A slight chance of snow showers in the evening.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 1 to 3 feet.
.SATURDAY...North winds 5 to 15 knots backing west by late
morning, then backing southwest by mid afternoon. Waves subsiding
to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Waves building
to 2 to 4 feet.
.SUNDAY...Southwest winds 15 to 25 knots. A chance of snow
showers in the morning, then snow showers likely in the
afternoon. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. A chance of snow showers. Waves building to 2 to
4 feet.
.MONDAY...North winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-302100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 AM EST Fri Jan 30 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...North winds 15 to 25 knots. Heavy freezing spray
and patchy fog. A chance of snow showers. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 5 to
15 knots. Heavy freezing spray in the evening. A slight chance of
snow showers in the evening. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet.
.SATURDAY...North winds 5 to 15 knots backing west by late
morning, then backing southwest by mid afternoon. Waves subsiding
to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves building to 2 to 4 feet.
.SUNDAY...South winds 10 to 20 knots veering southwest in the
afternoon. A chance of snow showers. Waves subsiding to 1 to
3 feet.
.SUNDAY NIGHT...West winds 10 to 20 knots veering north after
midnight. Snow showers likely in the evening, then a chance of
snow showers after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet.
.MONDAY...North winds 15 to 25 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-302100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 AM EST Fri Jan 30 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...North winds 15 to 25 knots backing northwest. A
chance of snow showers. Waves 3 to 5 feet occasionally to 7 feet
building to 4 to 7 feet occasionally to 9 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots late. A chance of snow showers. Waves subsiding to 3 to
5 feet occasionally to 7 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. A chance of snow showers. Waves calm to 2 feet.
.SUNDAY NIGHT...West winds 10 to 20 knots veering northwest after
midnight. Snow showers likely in the evening, then a chance of
snow showers after midnight. Waves building to 1 to 3 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming north 5 to
15 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-302100-
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-
1000 AM EST Fri Jan 30 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...North winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible by mid
afternoon. Patchy fog late in the morning. Heavy freezing spray.
Snow showers likely. Waves 3 to 6 feet occasionally to 8 feet
building to 6 to 9 feet occasionally to 11 feet.
.TONIGHT...North winds to 30 knots with a few gale force gusts to
35 knots possible diminishing to 15 to 25 knots. Heavy freezing
spray. A chance of snow showers. Waves subsiding to 3 to 6 feet
occasionally to 8 feet.
.SATURDAY...North winds 10 to 20 knots backing northwest by late
morning, then diminishing to 5 to 15 knots by mid afternoon. A
slight chance of snow showers in the morning. Waves subsiding to
calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.SUNDAY...South winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. A chance of snow showers in the afternoon.
Waves building to 2 to 4 feet.
.SUNDAY NIGHT...Southwest winds 15 to 25 knots veering west after
midnight. Snow showers likely in the evening, then a chance of
snow showers after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming north 10 to
20 knots. Freezing spray. A chance of snow showers. Waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet.
.TUESDAY...Northeast winds 10 to 20 knots veering south. Waves
subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-302100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 AM EST Fri Jan 30 2026

.REST OF TODAY...North winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. A chance of snow showers late in the
morning, then snow showers likely in the afternoon. Heavy
freezing spray in the afternoon. Waves 2 to 4 feet building to
4 to 7 feet occasionally to 9 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots late. Heavy freezing spray in the evening. A chance of
snow showers in the evening. Waves subsiding to 2 to 4 feet.
.SATURDAY...North winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots. A slight chance of snow
showers in the afternoon. Waves building to 2 to 4 feet.
.SUNDAY NIGHT...Southwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. A chance of snow showers in the
evening, then snow showers likely after midnight. Waves 2 to
4 feet.
.MONDAY...Northwest winds 10 to 20 knots veering north. A chance
of snow showers. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 1 to 3 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering southeast. Waves
subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-302100-
MAFOR 3016/
Superior West 14820 11820 11810 11800 11600. Waves 2 to 4 feet
subsiding to 1 to 3 feet this afternoon. Waves 1 to 3 feet
tonight. Waves 1 foot or less Saturday morning.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
14832 11830 11820 11810 11800. A chance of snow showers this
afternoon and evening. Waves 4 to 6 feet this afternoon. Waves 4
to 7 feet subsiding to 3 to 6 feet tonight. Waves 2 to 4 feet
subsiding to 1 to 3 feet Saturday morning.

Superior South Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11730 12742 11842 11832 11830 11820 11710. A chance of snow
showers this afternoon and tonight. Waves 3 to 6 feet building to
5 to 8 feet this afternoon. Waves 5 to 8 feet tonight. Waves 3 to
5 feet subsiding to 2 to 4 feet Saturday morning. Wave heights
are for ice free areas.

Superior East...HEAVY FREEZING SPRAY WARNING IN EFFECT...12837
11847 12830 12820 11810. Waves 3 to 6 feet building to 4 to 7
feet this afternoon. Waves 4 to 7 feet subsiding to 3 to 6 feet
tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Saturday
morning.

$$

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