233
FZUS63 KMQT 030901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 AM EST Sat Jan 3 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...

Deep 29.0 inch low is stalled near Newfoundland and Labrador, with a
30.1 inch ridge extending over the Upper Midwest. This pattern
remains fairly stable through today. Riding builds to 30.2 inches
over the Great Lakes late tonight into Sunday and moves east Sunday
night through Monday as a 29.8 low tracks into the Upper Great
Lakes. A second low around 29.7 inches is expected to impact the
Upper Great Lakes Tuesday into Tuesday night. Weak ridging around
29.9 inches recovers over the Upper Great Lakes Wednesday into
Thursday.


LSZ162-032100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EST Sat Jan 3 2026 /301 AM CST Sat Jan 3 2026/

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A chance of
snow showers. Waves calm to 2 feet.
.TODAY...Northwest winds 10 to 20 knots backing west by late
morning, then veering northwest by mid afternoon. A chance of
snow showers. Waves building to 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. Waves subsiding to calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots backing south by late
morning, then backing southeast by mid afternoon. A chance of
snow showers in the afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. Snow showers in the evening, then a
chance of snow showers after midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.TUESDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ263-032100-
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 Sat Jan 3 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A chance of
snow showers. Waves 2 to 4 feet.
.TODAY...Northwest winds 10 to 20 knots. A chance of snow
showers. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves subsiding to calm to 2 feet.
.SUNDAY...Northwest winds 5 to 15 knots backing southwest by late
morning, then backing southeast by mid afternoon. A slight chance
of snow showers in the afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots veering south after
midnight. Snow showers in the evening, then a chance of snow
showers after midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.TUESDAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ264-032100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EST Sat Jan 3 2026

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of snow showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of snow showers. Waves 3 to
5 feet occasionally to 7 feet.
.TONIGHT...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. A slight chance of snow showers. Waves
subsiding to 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 15 knots backing southeast by mid
afternoon. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Snow showers likely in the evening, then a chance
of snow showers after midnight. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.MONDAY...South winds 5 to 15 knots veering southwest in the
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.TUESDAY...Southwest winds 5 to 15 knots veering west. Waves calm
to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ265-032100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EST Sat Jan 3 2026

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 3 to
5 feet occasionally to 7 feet.
.TODAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. A chance of snow showers. Waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots by midnight. A slight chance of snow showers. Waves
subsiding to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots backing west by late
morning, then backing south by mid afternoon. Waves subsiding to
calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots. Snow showers. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.MONDAY...Southwest winds 10 to 20 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.TUESDAY...Southwest winds 5 to 15 knots becoming west 10 to
20 knots. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots backing southwest. Waves
calm to 2 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ266-032100-
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 Sat Jan 3 2026

.EARLY THIS MORNING...Northwest winds 20 to 30 knots. Freezing
spray. A slight chance of snow showers. Waves 4 to 8 feet
occasionally to 10 feet.
.TODAY...Northwest winds 20 to 30 knots. Freezing spray. A chance
of snow showers in the morning. Snow showers likely in the
afternoon. Waves subsiding to 3 to 6 feet occasionally to 8 feet,
then building to 4 to 7 feet occasionally to 9 feet.
.TONIGHT...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. 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.
.SUNDAY...Northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. A slight chance of snow showers in the
morning. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots increasing to 15 to
25 knots after midnight. Snow showers. Waves subsiding to calm to
2 feet, then building to 2 to 4 feet.
.MONDAY...South winds 10 to 20 knots veering southwest in the
afternoon. A chance of snow showers in the morning. Waves
subsiding to calm to 2 feet.
.MONDAY NIGHT...Southwest winds 10 to 20 knots. Waves calm to
2 feet.
.TUESDAY...Southwest winds 10 to 20 knots veering west. A chance
of rain showers. Waves building to 1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. Waves 1 to
3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ267-032100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EST Sat Jan 3 2026

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Freezing
spray. A chance of snow showers. Waves 4 to 8 feet occasionally
to 10 feet.
.TODAY...Northwest winds 15 to 25 knots. Freezing spray. Snow
showers likely in the morning. A chance of snow showers in the
afternoon. Waves subsiding to 3 to 6 feet occasionally to 8 feet,
then building to 4 to 7 feet occasionally to 9 feet.
.TONIGHT...Northwest winds 20 to 30 knots becoming north 15 to
25 knots by midnight. 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.
.SUNDAY...Northwest winds 10 to 20 knots backing west by mid
afternoon. A slight chance of snow showers in the morning. Waves
subsiding to 1 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots becoming southeast
15 to 25 knots after midnight. A chance of snow showers in the
evening, then snow showers after midnight. Waves subsiding to
calm to 2 feet, then building to 2 to 4 feet.
.MONDAY...Southeast winds 15 to 25 knots becoming south 10 to
20 knots in the afternoon. A chance of snow showers in the
morning. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY...South winds 10 to 20 knots veering west. A chance of
rain and snow showers. Waves building to 1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. Waves 1 to
3 feet.

Note, wave height forecasts are for ice free areas.

$$

LSZ261-031500-
MAFOR 0310/
Superior West 11710 12727 13720 12710. Waves 1 to 3 feet today.
Waves 2 to 4 feet subsiding to 1 to 3 feet tonight.

Superior North Central 12730 11737 14730 11720. Waves 3 to 5
feet.

Superior South Central 16730. A chance of snow showers today.
Waves 3 to 6 feet.

Superior East 12730 12737 11740 12730 11720. Waves 4 to 7 feet.

$$

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