308
FZUS63 KMQT 240300
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM EST Fri Jan 23 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 steadily increases to at least 30.6 inches over Lake
Superior through Saturday as a 31.1 inch high currently over the
northern Plains shifts east to the Upper Mississippi River Valley at
30.9 inches. Ridging over the lake weakens to 30.3 inches on Sunday
as a 29.6 inch low moves northeast along the Atlantic Coast. A 29.8
inch clipper low crosses the lake Monday night, followed by ridging
of around 30.1 inches during the middle part of next week.


LSZ162-240900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EST Fri Jan 23 2026 /900 PM CST Fri Jan 23 2026/

.REST OF TONIGHT...Northwest winds 10 to 20 knots. A chance of
snow showers. Waves 2 to 4 feet subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
by late morning, then backing southwest by mid afternoon. A
chance of snow showers. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots becoming west
5 to 15 knots by midnight, then veering northwest late. A slight
chance of snow showers. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.MONDAY...West winds 10 to 20 knots becoming southwest 15 to
25 knots 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. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 1 to 3 feet.
.TUESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots veering north. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-240900-
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 PM EST Fri Jan 23 2026

.REST OF TONIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots late. Heavy freezing spray late in the evening.
Snow showers likely late in the evening, then a chance of snow
showers after midnight. Waves 3 to 6 feet occasionally to 8 feet
subsiding to 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing southwest by
mid afternoon. A chance of snow showers. Waves 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots veering west
late. A slight chance of snow showers. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Waves building to
1 to 3 feet.
.MONDAY...West winds 15 to 25 knots increasing to 20 to 30 knots
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. 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. Waves subsiding to
2 to 4 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-240900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EST Fri Jan 23 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 1 AM EST
SATURDAY...

.REST OF TONIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. Heavy freezing spray late in the evening.
Snow showers likely late in the evening, then a chance of snow
showers after midnight. Waves 4 to 7 feet occasionally to 9 feet
subsiding to 2 to 4 feet.
.SATURDAY...Northwest winds 5 to 15 knots backing west by mid
afternoon. A chance of snow showers. Waves subsiding to calm to
2 feet, then building to 1 to 3 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots veering northwest
late. A chance of snow showers. Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Waves building to
2 to 4 feet.
.MONDAY...Northwest winds 15 to 25 knots backing west 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. 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 diminishing to 15 to
25 knots. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 25 knots. Waves building to 3 to
5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-240900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EST Fri Jan 23 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 1 AM EST
SATURDAY...

.REST OF TONIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots late. Heavy freezing spray late in the evening. A
chance of snow showers. Waves 4 to 7 feet occasionally to 9 feet
subsiding to 2 to 4 feet.
.SATURDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of snow showers. Waves subsiding to calm to
2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots veering west
late. Waves calm to 2 feet.
.SUNDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. A slight chance of snow showers. Waves
calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots increasing to
20 to 30 knots after midnight. A slight chance of snow showers in
the evening. Waves building to 2 to 4 feet.
.MONDAY...West winds 20 to 30 knots. Waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
.MONDAY NIGHT...Southwest winds 20 to 30 knots veering west after
midnight. Waves building to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Heavy freezing spray. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots veering north. A
chance of snow showers. Waves building to 3 to 6 feet
occasionally to 8 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-240900-
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 PM EST Fri Jan 23 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST
SATURDAY...

.REST OF TONIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots late. Heavy freezing spray. Snow showers likely.
Waves 7 to 10 feet occasionally to 13 feet subsiding to 4 to
7 feet occasionally to 9 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming west 10 to
20 knots. A chance of snow showers. Waves subsiding to 1 to
3 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots veering west
late. A slight chance of snow showers. Waves 1 to 3 feet.
.SUNDAY...West winds 10 to 20 knots veering northwest in the
afternoon. A 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 after midnight. 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. A chance of snow showers. Waves 3 to 6 feet
occasionally to 8 feet.
.MONDAY NIGHT...West winds 20 to 30 knots. Heavy freezing spray.
A chance of snow showers. Waves building to 4 to 7 feet
occasionally to 9 feet.
.TUESDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Heavy freezing spray. A chance of snow showers. Waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots veering north. 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.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-240900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EST Fri Jan 23 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 7 AM EST
SATURDAY...

.REST OF TONIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. Heavy freezing spray. Snow showers. Waves
7 to 10 feet occasionally to 13 feet subsiding to 4 to 7 feet
occasionally to 9 feet.
.SATURDAY...Northwest winds 10 to 20 knots backing west. Snow
showers likely. Waves subsiding to 2 to 4 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots backing south
late. A chance of snow showers in the evening. Waves subsiding to
1 to 3 feet, then building to 2 to 4 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west in the
afternoon. A slight chance of snow showers. Waves subsiding to
1 to 3 feet, then building to 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. A chance of snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...Northwest winds 15 to 25 knots backing west in the
afternoon. A chance of snow showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.MONDAY NIGHT...West winds 15 to 25 knots backing southwest after
midnight. Freezing spray. A chance of snow showers. Waves
building to 4 to 7 feet occasionally to 9 feet.
.TUESDAY...Northwest winds 20 to 30 knots becoming north 15 to
25 knots. Freezing spray. A chance of snow showers. Waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...North winds 10 to 20 knots becoming northeast 15 to
25 knots. A chance of snow showers. Waves subsiding to 3 to
5 feet occasionally to 7 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-240900-
MAFOR 2404/
Superior West 11720 11710 13610 13510. A chance of snow showers
overnight and Saturday. Waves 3 to 5 feet subsiding to 1 to 3
feet overnight. Waves 1 to 3 feet Saturday and Saturday evening.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
11737 13720 11710 12610 11510. Waves 4 to 7 feet subsiding to 3
to 6 feet overnight. Waves 2 to 4 feet subsiding to 1 to 2 feet
Saturday. Waves 1 to 3 feet Saturday evening.

Superior South Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
12732 14620 12510. A chance of snow showers overnight and
Saturday morning. Waves 5 to 8 feet subsiding to 3 to 6 feet
overnight. Waves 3 to 5 feet subsiding to 1 to 3 feet Saturday.
Waves 1 to 2 feet Saturday evening.

Superior East...HEAVY FREEZING SPRAY WARNING IN EFFECT...11737
14727 12617 11510. Waves 5 to 9 feet overnight. Waves 3 to 6 feet
Saturday. Waves 2 to 3 feet Saturday evening.

$$

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