276
FZUS63 KMQT 010900
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Sun Nov 1 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 30.5 inch high pressure moving into the Eastern Seaboard later
today continues to extend a 30.2 inch ridge over Lake Superior the
rest of today into this evening. Thereafter, a 29.4 inch low lifts
from Colorado into the Northern Plains late tonight into Monday,
then head towards the Upper Mississippi Valley at 29.6 inches
Monday night and Tuesday. This low then slowly trudges eastward
Wednesday before arriving over the western Great Lakes Wednesday
night. The low weakens over the Great Lakes region to around 29.7
inches on Thursday as it slowly continues eastward.



LSZ162-012100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Sun Nov 1 2026 /300 AM CST Sun Nov 1 2026/

.EARLY THIS MORNING...South winds less than 10 knots. A slight
chance of showers. Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing south by mid
afternoon. A slight chance of showers. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering south by
midnight, then backing southeast late. Patchy fog. Waves calm to
2 feet.
.MONDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots. Patchy dense fog in the morning. A slight chance of
showers in the morning, then showers likely in the afternoon.
Waves calm to 2 feet.
.MONDAY NIGHT...East winds 10 to 20 knots veering southeast after
midnight. Showers. A slight chance of thunderstorms after
midnight. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.TUESDAY...South winds 10 to 20 knots backing north in the
afternoon. Showers. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. Showers likely in the evening, then a chance of
showers after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. Showers likely, then a chance of showers. Waves
building to 2 to 4 feet.
.THURSDAY...Northeast winds 15 to 25 knots diminishing to 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

$$

LSZ263-012100-
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 AM EST Sun Nov 1 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots. A slight chance of
showers. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. Patchy fog. Waves calm to
2 feet.
.MONDAY...Southeast winds 5 to 15 knots. A slight chance of
showers in the morning, then showers likely in the afternoon.
Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Showers. Waves building to 2 to 4 feet.
.TUESDAY...South winds 5 to 15 knots backing north in the
afternoon. Showers. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Showers likely in the evening, then a
chance of showers after midnight. Waves building to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. Rain showers likely, then a chance of rain showers.
Waves subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.THURSDAY...North winds 20 to 30 knots becoming northeast 15 to
25 knots. Waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 2 to 4 feet.

$$

LSZ264-012100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Sun Nov 1 2026

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. A slight
chance of showers. Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots. A slight chance of
showers. Waves calm to 2 feet.
.TONIGHT...Southwest winds less than 10 knots becoming south 5 to
15 knots by midnight. Patchy fog. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast by late
morning, then increasing to 10 to 20 knots by mid afternoon.
Showers likely in the afternoon. Waves building to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight. Showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. Showers. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. Showers in the evening, then a chance of showers
after midnight. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots becoming north 15 to
25 knots. Showers likely, then a chance of showers. Waves
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.
.THURSDAY...North winds 20 to 30 knots becoming northeast 15 to
25 knots. A chance of rain showers. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet.

$$

LSZ265-012100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Sun Nov 1 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...South winds 5 to 15 knots veering southwest by late
morning, then backing south by mid afternoon. A slight chance of
showers in the afternoon. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots. Showers likely in the afternoon. Waves building to 1 to
3 feet.
.MONDAY NIGHT...Southeast winds 15 to 25 knots becoming south
10 to 20 knots after midnight. Showers. Waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TUESDAY...South winds 10 to 20 knots. Showers. Waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots veering west
after midnight. Showers in the evening, then a chance of showers
after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...West winds 15 to 25 knots veering north. Showers
likely. Waves building to 2 to 4 feet.
.THURSDAY...North gales to 35 knots becoming northeast 20 to
30 knots. A chance of showers. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet.

$$

LSZ266-012100-
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 AM EST Sun Nov 1 2026

.EARLY THIS MORNING...South winds 10 to 20 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...South winds 10 to 20 knots becoming southwest 5 to
15 knots. A slight chance of showers. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots
late. A slight chance of showers in the evening. Waves calm to
2 feet.
.MONDAY...South winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. A chance of showers in the afternoon.
Waves building to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 15 to 25 knots becoming south
20 to 30 knots after midnight. Showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.TUESDAY...South winds 15 to 25 knots. Showers. Waves subsiding
to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots veering west
after midnight. Showers. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...West winds 15 to 25 knots veering north. Showers
likely. Waves subsiding to calm to 2 feet, then building to 2 to
4 feet.
.THURSDAY...North gales to 35 knots becoming northeast 20 to
30 knots. A chance of rain showers. Waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.

$$

LSZ267-012100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Sun Nov 1 2026

.EARLY THIS MORNING...South winds 10 to 20 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...South winds 10 to 20 knots diminishing to 5 to 15 knots
by late morning, then veering southwest by mid afternoon. Waves
calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. A slight chance of showers.
Patchy fog after midnight. Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots backing southeast. A slight
chance of showers in the afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 15 to 25 knots veering south
after midnight. Showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.TUESDAY...South winds 15 to 25 knots. Showers. Waves subsiding
to 2 to 4 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots veering southwest
after midnight. Showers. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots becoming north 10 to
20 knots. Showers likely. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.THURSDAY...Northeast winds 15 to 25 knots. A chance of showers.
Waves building to 3 to 6 feet occasionally to 8 feet.

$$

LSZ261-011500-
MAFOR 0110/
Superior West 11400 13500 11400 12300 11400. Waves 1 foot or
less.

Superior North Central 12500 12510 12500 12400. Waves 1 foot or
less.

Superior South Central 13410 12400 13410. Waves 1 foot or less.

Superior East 12410 11510 13500 11510 11410. Waves 1 to 2 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