051
FZUS63 KMQT 160901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 AM EST Sun Nov 16 2025

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...

Lake Superior this morning is between a 29.1 inch low over New
England and a 30.1 inch high pressure over the Dakotas. Throughout
today, the low will deepen to 28.9 inches over the Maritime
Provinces while 30.0 inch ridging remains over the Upper Mississippi
Valley. The low lifts northeast Tuesday as the high builds to 30.2
inches over the Great Lakes by Monday evening. The high remains
largely stationary, only shifting slightly to the east by Wednesday
evening. Thursday, a 29.6 inch low develops over the Central Plains
while the 30.2 inch high shifts over New England. Friday, this low
ejects towards the Great Lakes at around 29.6 inches.


LSZ162-162100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EST Sun Nov 16 2025 /301 AM CST Sun Nov 16 2025/

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 3 to
6 feet occasionally to 8 feet.
.TODAY...Northwest winds 15 to 25 knots. Waves subsiding to 2 to
4 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to calm to 2 feet.
.MONDAY...Northwest winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...East winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming northwest
10 to 20 knots. A chance of rain showers. Waves calm to 2 feet.

$$

LSZ263-162100-
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-
401 AM EST Sun Nov 16 2025

.EARLY THIS MORNING...Northwest winds 20 to 30 knots. Waves 4 to
8 feet occasionally to 10 feet.
.TODAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Waves subsiding to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots veering north by
midnight, then becoming northwest 10 to 20 knots late. Waves
subsiding to 2 to 4 feet.
.MONDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...North winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots diminishing to less than
10 knots in the afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds less than 10 knots becoming
southwest 5 to 15 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming northwest
10 to 20 knots. A chance of rain showers. Waves building to 1 to
3 feet.

$$

LSZ264-162100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EST Sun Nov 16 2025

.EARLY THIS MORNING...Northwest winds 20 to 30 knots. Waves 7 to
10 feet occasionally to 13 feet.
.TODAY...Northwest winds 20 to 30 knots. Waves subsiding to 5 to
8 feet occasionally to 10 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. Waves building to 6 to 9 feet occasionally
to 11 feet, then subsiding to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...North winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...North winds less than 10 knots backing northwest in
the afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southwest winds less than 10 knots increasing to
5 to 15 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming northwest
10 to 20 knots. A chance of rain showers. Waves building to 2 to
4 feet.

$$

LSZ265-162100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EST Sun Nov 16 2025

.EARLY THIS MORNING...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible. A slight chance of 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. A slight chance of snow showers in the
morning. Waves subsiding to 6 to 9 feet occasionally to 11 feet.
.TONIGHT...Northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 20 to 30 knots by
midnight. Waves subsiding to 4 to 7 feet occasionally to 9 feet.
.MONDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots veering northeast in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots becoming northwest
15 to 25 knots. A chance of rain showers. Waves calm to 2 feet.

$$

LSZ266-162100-
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-
401 AM EST Sun Nov 16 2025

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...Northwest gales to 40 knots. A slight
chance of snow showers, possibly mixed with rain. Waves 10 to
14 feet occasionally to 18 feet.
.TODAY...Northwest gales to 40 knots. A slight chance of snow
showers. Waves 10 to 14 feet occasionally to 18 feet.
.TONIGHT...Northwest gales to 40 knots diminishing to 20 to
30 knots late. A chance of snow showers. Waves subsiding to 6 to
9 feet occasionally to 11 feet.
.MONDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. A slight chance of snow showers. Waves subsiding to
3 to 5 feet occasionally to 7 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing northwest in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots becoming northwest
15 to 25 knots. A chance of rain showers. Waves building to 2 to
4 feet.

$$

LSZ267-162100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EST Sun Nov 16 2025

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.EARLY THIS MORNING...North gales to 40 knots. Snow showers.
Waves 10 to 14 feet occasionally to 18 feet.
.TODAY...North gales to 40 knots backing northwest. Snow showers
likely. Waves 10 to 14 feet occasionally to 18 feet.
.TONIGHT...Northwest gales to 40 knots becoming north gales to
35 knots by midnight, then diminishing to 20 to 30 knots late. A
chance of snow showers. Waves subsiding to 6 to 9 feet
occasionally to 11 feet.
.MONDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots. A slight chance of snow showers. Waves subsiding to
3 to 5 feet occasionally to 7 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. A slight chance of snow showers in the evening.
Waves subsiding to calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing northwest in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots backing southwest after
midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots. Rain showers likely. Waves building to 2 to 4 feet.

$$

LSZ261-161500-
MAFOR 1610/
Superior West 12740 14730 12720. Waves 3 to 6 feet subsiding to 2
to 4 feet today. Waves 3 to 5 feet subsiding to 1 to 3 feet
tonight.

Superior North Central 14740 11740 11840 11740 11730. Waves 6 to
10 feet subsiding to 5 to 8 feet today. Waves 5 to 9 feet
subsiding to 4 to 7 feet tonight.

Superior South Central...GALE WARNING IN EFFECT...14750 11750
13740. A chance of snow showers early this morning. Waves 9 to 12
feet today. Waves 7 to 11 feet subsiding to 6 to 9 feet tonight.

Superior East...GALE WARNING IN EFFECT...13757 13750 12840. Waves
10 to 13 feet today. Waves 9 to 13 feet subsiding to 7 to 11 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