299
FZUS63 KMQT 282101
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 PM EST Wed Jan 28 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 weak 30.0 inch trough remains over eastern Lake Superior this
afternoon as high pressure builds to the south and west through the
rest of the work week. Remnant troughing gradually weakens over the
lake through Thursday before strong high pressure around 31.0 inches
descending from the Canadian Prairies brings ridging of around 30.6
inches back over the lake by Friday. Ridging remains over the lake
this weekend, weakening to 30.2 inches on Sunday as a 29.9 to
30.0 inch trough approaches from the northwest early next week.


LSZ162-290900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EST Wed Jan 28 2026 /300 PM CST Wed Jan 28 2026/

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. A slight
chance of snow showers. Waves 2 to 4 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to
20 knots by midnight. A chance of snow showers. Waves building to
3 to 5 feet occasionally to 7 feet, then subsiding to 1 to
3 feet.
.THURSDAY...North winds 10 to 20 knots. A chance of snow showers.
Waves subsiding to calm to 2 feet, then building to 1 to 3 feet.
.THURSDAY NIGHT...North winds 10 to 20 knots veering northeast by
midnight, then backing north late. Waves building to 2 to 4 feet.
.FRIDAY...North winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.FRIDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. A chance
of snow showers. Waves calm to 2 feet.
.MONDAY...Northwest winds 5 to 15 knots veering north. Waves calm
to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-290900-
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 Wed Jan 28 2026

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

.LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. A chance
of snow showers. Waves 2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. A chance of snow showers in the evening. Snow
showers likely after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.THURSDAY...North winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Snow showers likely in the morning. A
chance of snow showers in the afternoon. Waves subsiding to 1 to
3 feet, then building to 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots. A chance of snow
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.FRIDAY...North winds 15 to 25 knots. Waves subsiding to 2 to
4 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Waves subsiding to 1 to 3 feet.
.SATURDAY...North winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. Waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.MONDAY...Northwest winds 10 to 20 knots becoming north 5 to
15 knots. Waves subsiding to calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-290900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 PM EST Wed Jan 28 2026

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

.LATE THIS AFTERNOON...North winds 10 to 20 knots. Heavy freezing
spray. A chance of snow showers. Waves 3 to 6 feet occasionally
to 8 feet.
.TONIGHT...North winds 10 to 20 knots. Heavy freezing spray in
the evening. A chance of snow showers in the evening, then snow
showers likely after midnight. Waves subsiding to 3 to 5 feet
occasionally to 7 feet.
.THURSDAY...North winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Snow showers likely. Waves subsiding
to 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then increasing to 15 to 25 knots late. A
chance of snow showers. Heavy freezing spray after midnight.
Waves building to 3 to 5 feet occasionally to 7 feet.
.FRIDAY...North winds 15 to 25 knots. Heavy freezing spray. A
slight chance of snow showers in the afternoon. Waves building to
3 to 6 feet occasionally to 8 feet.
.FRIDAY NIGHT...North winds 15 to 25 knots. Heavy freezing spray
in the evening. Waves subsiding to 1 to 3 feet.
.SATURDAY...North winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves building
to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots veering west. 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.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-290900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 PM EST Wed Jan 28 2026

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. A chance
of snow showers. Waves 3 to 5 feet occasionally to 7 feet.
.TONIGHT...Northwest winds 15 to 25 knots. A chance of snow
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.THURSDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then veering north by mid afternoon.
Snow showers likely. Waves subsiding to 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots. A chance of snow
showers. Waves 2 to 4 feet.
.FRIDAY...North winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. A chance of snow showers. Waves building to
3 to 6 feet occasionally to 8 feet.
.FRIDAY NIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. Waves subsiding to 3 to 5 feet
occasionally to 7 feet.
.SATURDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots. Waves calm to 2 feet.
.MONDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-290900-
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 Wed Jan 28 2026

...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THURSDAY
MORNING...

.LATE THIS AFTERNOON...North winds 20 to 30 knots. Heavy freezing
spray. Snow showers. Waves 5 to 8 feet occasionally to 10 feet.
.TONIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. Heavy freezing spray. Snow showers. Waves
subsiding to 4 to 7 feet occasionally to 9 feet.
.THURSDAY...North winds 15 to 25 knots becoming northeast 10 to
20 knots by late morning, then backing north by mid afternoon.
Snow showers. Waves subsiding to 2 to 4 feet.
.THURSDAY NIGHT...North winds 15 to 25 knots veering northeast by
midnight, then backing north late. A chance of snow showers.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.FRIDAY...North winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. Heavy freezing spray. A chance of snow showers.
Waves building to 5 to 8 feet occasionally to 10 feet.
.FRIDAY NIGHT...North gales to 35 knots diminishing to 15 to
25 knots after midnight. A chance of snow showers in the evening.
Heavy freezing spray. Waves subsiding to 3 to 6 feet occasionally
to 8 feet.
.SATURDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots backing southwest
after midnight. Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots. A chance of snow showers. Waves building to 2 to
4 feet.
.MONDAY...Northwest winds 15 to 25 knots becoming north 10 to
20 knots. Waves subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-290900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 PM EST Wed Jan 28 2026

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

.LATE THIS AFTERNOON...North winds 15 to 25 knots. Heavy freezing
spray. Snow showers. Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then veering northeast late. Heavy freezing
spray in the evening. Snow showers likely. Waves subsiding to
2 to 4 feet.
.THURSDAY...Northeast winds 10 to 20 knots veering east by late
morning, then backing north by mid afternoon. Snow showers likely
in the morning, then a chance of snow showers in the afternoon.
Waves subsiding to 1 to 3 feet.
.THURSDAY NIGHT...Northeast winds 10 to 20 knots backing north
late. A chance of snow showers. Waves 1 to 3 feet.
.FRIDAY...North winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. A chance of snow showers. Waves building to
3 to 6 feet occasionally to 8 feet.
.FRIDAY NIGHT...North winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. Heavy freezing spray in the evening.
Waves subsiding to 2 to 4 feet.
.SATURDAY...North winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots backing southwest
after midnight. Waves calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots. A chance of snow showers. Waves building to 2 to
4 feet.
.MONDAY...West winds 10 to 20 knots veering north. Waves
subsiding to 1 to 3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-290300-
MAFOR 2822/
Superior West...HEAVY FREEZING SPRAY WARNING IN EFFECT...11720
13820 13810 11820. A chance of snow showers. Waves 3 to 5 feet
subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet Thursday.

Superior North Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
12832 11837 14827 11827. Waves 3 to 6 feet tonight. Waves 3 to 5
feet subsiding to 2 to 4 feet Thursday.

Superior South Central...HEAVY FREEZING SPRAY WARNING IN EFFECT...
14730 12727 12827. Waves 3 to 6 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet tonight. Waves 3 to 6 feet
Thursday. Wave heights are for ice free areas.

Superior East...HEAVY FREEZING SPRAY WARNING IN EFFECT...12837
11827 14127 11817. Waves 3 to 6 feet tonight. Waves 2 to 4 feet
Thursday.

$$

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