National Weather Service Marine Forecast FZUS63 KMQT
FZUS63 KMQT 110858
GLFLS
Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
358 AM EST Wed Feb 11 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
30.3 inch high pressure builds over the Northern Plains into 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. Weak ridging of 30.1 inches moves over Lake Superior on Sunday.
LSZ162-112100
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM
358 AM EST Wed Feb 11 2026 /258 AM CST Wed Feb 11 2026/
EARLY THIS MORNING
Northwest winds 10 to 20 knots. Isolated
snow showers. Waves calm to 2 feet.
TODAY
Northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. Waves calm to 2 feet.
TONIGHT
West winds 5 to 15 knots veering northwest by
midnight. Waves calm to 2 feet.
THURSDAY
South winds less than 10 knots becoming southwest
5 to 15 knots by late morning, then backing south by mid
afternoon. Waves calm to 2 feet.
THURSDAY NIGHT
Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves calm to 2 feet.
FRIDAY
West winds 10 to 20 knots. Waves calm to 2 feet.
FRIDAY NIGHT
West winds 5 to 15 knots backing southwest after
midnight. Waves calm to 2 feet.
SATURDAY
South winds 5 to 15 knots veering west. Waves calm to
2 feet.
SUNDAY
West winds 5 to 15 knots. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
LSZ263-112100
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
358 AM EST Wed Feb 11 2026
EARLY THIS MORNING
Northwest winds 10 to 20 knots. Isolated
snow showers. Waves 2 to 4 feet.
TODAY
Northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. Waves subsiding to calm to 2 feet.
TONIGHT
Northwest winds 5 to 15 knots diminishing to less than
10 knots late. Waves calm to 2 feet.
THURSDAY
Southwest winds less than 10 knots increasing to 5 to
15 knots. Waves calm to 2 feet.
THURSDAY NIGHT
Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves calm to 2 feet.
FRIDAY
West winds 10 to 20 knots. Waves calm to 2 feet.
FRIDAY NIGHT
West winds 5 to 15 knots backing southwest after
midnight. Waves calm to 2 feet.
SATURDAY
South winds 5 to 15 knots veering southwest. Waves
calm to 2 feet.
SUNDAY
West winds 5 to 15 knots. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
LSZ264-112100
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border
358 AM EST Wed Feb 11 2026
EARLY THIS MORNING
Northwest winds 15 to 25 knots. Freezing
spray. Isolated snow showers. Waves 4 to 7 feet occasionally to
9 feet.
TODAY
Northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. Freezing spray in the morning.
Isolated snow showers in the morning. Waves subsiding to 2 to
4 feet.
TONIGHT
North winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then backing northwest late. Waves
subsiding to calm to 2 feet.
THURSDAY
West winds less than 10 knots increasing to 5 to
15 knots by late morning, then backing southwest by mid
afternoon. Waves calm to 2 feet.
THURSDAY NIGHT
Southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
FRIDAY
West winds 15 to 25 knots. Waves 1 to 3 feet.
FRIDAY NIGHT
Northwest winds 5 to 15 knots backing west after
midnight. Waves subsiding to calm to 2 feet.
SATURDAY
South winds 5 to 15 knots. Waves calm to 2 feet.
SUNDAY
West winds 5 to 15 knots. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
LSZ265-112100
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore
358 AM EST Wed Feb 11 2026
GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING
EARLY THIS MORNING
Northwest winds 20 to 30 knots. Isolated
snow showers. Waves calm to 2 feet.
TODAY
Northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. Isolated snow showers. Waves calm to
2 feet.
TONIGHT
Northwest winds 10 to 20 knots backing west late.
Isolated snow showers in the evening. Waves calm to 2 feet.
THURSDAY
West winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
THURSDAY NIGHT
South winds 10 to 20 knots veering west after
midnight. Waves calm to 2 feet.
FRIDAY
West winds 15 to 25 knots. Waves calm to 2 feet.
FRIDAY NIGHT
West winds 10 to 20 knots. Waves calm to 2 feet.
SATURDAY
South winds 10 to 20 knots. Waves calm to 2 feet.
SUNDAY
West winds 10 to 20 knots. Waves calm to 2 feet.
Note, wave height forecasts are for ice free areas.
LSZ266-112100
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
358 AM EST Wed Feb 11 2026
GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING
EARLY THIS MORNING
Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible. Freezing spray. Scattered snow
showers. Waves 7 to 10 feet occasionally to 13 feet.
TODAY
Northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots. Freezing
spray. Scattered snow showers. Waves subsiding to 4 to 7 feet
occasionally to 9 feet.
TONIGHT
Northwest winds 15 to 25 knots becoming north 10 to
20 knots by midnight. Freezing spray in the evening. Scattered
snow showers. Waves subsiding to 1 to 3 feet.
THURSDAY
Northwest winds 5 to 15 knots backing southwest by
mid afternoon. Waves subsiding to calm to 2 feet.
THURSDAY NIGHT
Southwest winds 5 to 15 knots increasing to
15 to 25 knots after midnight. Waves building to 1 to 3 feet.
FRIDAY
West winds 15 to 25 knots veering northwest in the
afternoon. Waves building to 2 to 4 feet.
FRIDAY NIGHT
Northwest winds 10 to 20 knots backing west after
midnight. Waves subsiding to calm to 2 feet.
SATURDAY
South winds 10 to 20 knots. Waves building to 1 to
3 feet.
SUNDAY
West winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
Note, wave height forecasts are for ice free areas.
LSZ267-112100
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border
358 AM EST Wed Feb 11 2026
GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING
EARLY THIS MORNING
Northwest winds 20 to 30 knots. Freezing
spray. Scattered snow showers. Waves 6 to 10 feet occasionally to
13 feet.
TODAY
North winds 20 to 30 knots becoming northwest 15 to
25 knots by mid afternoon. Freezing spray. Scattered snow
showers. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
TONIGHT
North winds 15 to 25 knots diminishing to 5 to
15 knots. Isolated snow showers in the evening. Waves subsiding
to calm to 2 feet.
THURSDAY
North winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
THURSDAY NIGHT
Southwest winds 5 to 15 knots increasing to
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
FRIDAY
West winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
FRIDAY NIGHT
Northwest winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
SATURDAY
South winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
SUNDAY
South winds 10 to 20 knots veering west. Waves calm to
2 feet.
Note, wave height forecasts are for ice free areas.
LSZ261-111500
MAFOR 1110/
Superior West 12720 11710 12610 13700. Waves omitted due to the
lake being mostly ice covered.
Superior North Central 12740 12730 11720 11820 11810 11800. Waves 4 to 7 feet subsiding to 3 to 6 feet today. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight.
Superior South Central 11740 11740 19747 12740 12730 11720 11710. Waves 5 to 9 feet subsiding to 4 to 7 feet today. Waves 3 to 6 feet subsiding to 1 to 3 feet tonight. Wave heights are for ice free areas.
Superior East 11741 19747 11841 11830 11731 11831 11830 11820 11810. Waves 6 to 10 feet subsiding to 5 to 8 feet today. Waves 4 to 7 feet subsiding to 1 to 3 feet tonight.
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
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