583
FZUS63 KMQT 101501
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 AM EST Tue Feb 10 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 29.7 inch low over north-central Ontario will pull a 29.8 inch
trough through Lake Superior through this afternoon. As the low
shifts to the Ontario/Quebec line Tuesday night, high pressure of
30.3 inches builds over the Northern Plains. This high gradually
settles over the Great Lakes by Thursday morning. Friday, the high
moves to the southern portion of the Great Lakes while a 29.8 inch
low moves across northern Ontario. This low pulls a 29.9 inch trough
near eastern Lake Superior Friday afternoon. Saturday, high pressure
resumes over the Great Lakes before a weak 29.9 inch trough moves
into the Upper Great Lakes Saturday night.


LSZ162-102100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 AM EST Tue Feb 10 2026 /900 AM CST Tue Feb 10 2026/

.REST OF TODAY...West winds 15 to 25 knots increasing to 20 to
30 knots. Waves calm to 2 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming west 10 to
20 knots late. Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots backing west by late
morning, then diminishing to 5 to 15 knots by mid afternoon.
Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds less than 10 knots veering
northeast after midnight. Waves calm to 2 feet.
.THURSDAY...East winds less than 10 knots veering south in the
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds less than 10 knots becoming
west 5 to 15 knots after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots veering west. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-102100-
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 Tue Feb 10 2026

.REST OF TODAY...West winds 15 to 25 knots increasing to 20 to
30 knots. Isolated snow showers. Waves 2 to 4 feet building to
3 to 6 feet occasionally to 8 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.
.TONIGHT...Northwest winds 15 to 25 knots. Isolated snow showers
in the evening. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. Waves subsiding to 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. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots veering west
after midnight. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots becoming southwest 5 to
15 knots. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-102100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 AM EST Tue Feb 10 2026

.REST OF TODAY...West winds 15 to 25 knots increasing to 20 to
30 knots by late morning, then veering northwest by mid
afternoon. Scattered snow showers. Waves 3 to 5 feet occasionally
to 7 feet building to 4 to 7 feet occasionally to 9 feet.
.TONIGHT...Northwest winds 20 to 30 knots. Freezing spray.
Isolated snow showers. Waves building to 6 to 9 feet occasionally
to 11 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots diminishing to 10 to
20 knots. Isolated snow showers in the morning. Waves subsiding
to 2 to 4 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 less than 10 knots backing southwest in
the afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots veering west
after midnight. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots diminishing to 5 to 15 knots.
Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots veering southwest. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-102100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 AM EST Tue Feb 10 2026

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...West winds 20 to 30 knots increasing to gales to
35 knots. Scattered snow showers. Waves calm to 2 feet.
.TONIGHT...Northwest gales to 35 knots. Isolated snow showers in
the evening. Waves calm to 2 feet.
.WEDNESDAY...Northwest gales to 35 knots diminishing to 15 to
25 knots. Isolated snow showers in the morning. Waves calm to
2 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing south in the
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-102100-
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 Tue Feb 10 2026

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...West winds 20 to 30 knots increasing to gales to
35 knots. Scattered snow showers. Freezing spray in the
afternoon. Waves 3 to 5 feet occasionally to 7 feet building to
8 to 11 feet occasionally to 14 feet.
.TONIGHT...Northwest gales to 40 knots. Freezing spray. Scattered
snow showers. Waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 7 to 10 feet occasionally to 13 feet.
.WEDNESDAY...Northwest gales to 35 knots diminishing to 20 to
30 knots. Freezing spray. Scattered snow showers. Waves subsiding
to 4 to 7 feet occasionally to 9 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots becoming north
5 to 15 knots after midnight. Freezing spray in the evening.
Scattered snow showers. Waves subsiding to 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Isolated snow showers in the morning. Waves subsiding
to calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. Waves building to 1 to
3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-102100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 AM EST Tue Feb 10 2026

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...West winds 10 to 20 knots increasing to gales to
35 knots. Scattered snow showers. Waves 1 to 3 feet building to
8 to 11 feet occasionally to 14 feet.
.TONIGHT...Northwest gales to 35 knots. Scattered snow showers.
Freezing spray after midnight. Waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 7 to 10 feet
occasionally to 13 feet.
.WEDNESDAY...North winds 20 to 30 knots backing northwest by late
morning, then diminishing to 15 to 25 knots by mid afternoon.
Freezing spray. Scattered snow showers. Waves subsiding to 3 to
6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. Isolated snow showers. Waves subsiding
to calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots backing west in the
afternoon. Isolated snow showers in the morning. Waves calm to
2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY...West winds 5 to 15 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-102100-
MAFOR 1016/
Superior West 12640 12730 13720 11710. Waves omitted due to the
lake being mostly ice covered.

Superior North Central 11641 19647 11740 19747 11740 12741 13740.
Waves 3 to 6 feet building to 4 to 7 feet this afternoon. Waves 5
to 8 feet tonight. Waves 4 to 7 feet subsiding to 3 to 6 feet
Wednesday morning.

Superior South Central...GALE WARNING IN EFFECT...11640 11651
19657 11651 11751 11750 12740 11740 19747. Waves 3 to 6 feet
building to 4 to 7 feet this afternoon. Waves 5 to 9 feet tonight
and Wednesday morning. Wave heights are for ice free areas.

Superior East...GALE WARNING IN EFFECT...12640 19647 12750 19757
11750 11741 11841 11841 19847. Waves 3 to 5 feet building to 7 to
10 feet this afternoon. Waves 8 to 12 feet tonight. Waves 6 to 10
feet Wednesday 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