024
FZUS63 KMQT 020901
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EST Mon Nov 2 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 29.4 inch low lifts from Colorado into the Northern Plains today,
then heads over western Lake Superior into northern Ontario at 29.6
inches tonight into Tuesday. A second Colorado over the Central
PLains at 29.6 inches tonight then lifts into the Upper Mississippi
Valley Tuesday into Tuesday evening. This second Colorado low then
slowly trudges northeast into Wisconsin and the U.P. on Wednesday as
it deepens to 29.5 inches. The low then splits, with a remnant low
over the Great Lakes region gradually weakening from 29.6 inches on
Thursday to 29.8 inches by Friday as it moves southeast from the
Upper Great Lakes to the Lower Great Lakes.



LSZ162-022100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EST Mon Nov 2 2026 /300 AM CST Mon Nov 2 2026/

.EARLY THIS MORNING...Southeast winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...East winds 5 to 15 knots increasing to 10 to 20 knots.
Patchy dense fog in the morning. A chance of showers in the
morning, then showers in the afternoon. Waves building to 1 to
3 feet.
.TONIGHT...East winds 10 to 20 knots diminishing to 5 to 15 knots
by midnight, then veering south late. Showers in the evening,
then a chance of showers after midnight. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.TUESDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. Showers. A slight chance of
thunderstorms in the afternoon. Waves subsiding to calm to
2 feet.
.TUESDAY NIGHT...East winds 10 to 20 knots. A slight chance of
thunderstorms in the evening. Showers. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...Northeast winds 10 to 20 knots backing north in the
afternoon. Showers. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots becoming north
15 to 25 knots after midnight. Showers. Waves building to 1 to
3 feet.
.THURSDAY...North winds 20 to 30 knots veering northeast. A
chance of rain showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northeast winds 5 to 15 knots veering east. Waves
subsiding to calm to 2 feet.

$$

LSZ263-022100-
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 Mon Nov 2 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...Southeast winds 5 to 15 knots. A slight chance of
showers in the morning, then showers in the afternoon. Waves
building to 1 to 3 feet.
.TONIGHT...Southeast winds 10 to 20 knots becoming south 5 to
15 knots late. Showers in the evening, then a slight chance of
showers after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
.TUESDAY...South winds 5 to 15 knots backing east by mid
afternoon. A chance of showers in the morning, then showers in
the afternoon. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...East winds 5 to 15 knots. Showers. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots veering southwest in
the afternoon. Showers. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming north 20 to
30 knots after midnight. Rain showers. Waves building to 2 to
4 feet.
.THURSDAY...North gales to 40 knots becoming northeast 20 to
30 knots. A chance of rain showers. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet.
.FRIDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ264-022100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EST Mon Nov 2 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. Patchy dense
fog. Waves calm to 2 feet.
.TODAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots. Showers in the afternoon. Waves building to 2 to
4 feet.
.TONIGHT...Southeast winds 15 to 25 knots becoming south 10 to
20 knots late. Showers in the evening, then a slight chance of
showers after midnight. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. A slight chance of showers in the morning, then
showers in the afternoon. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots. Showers. Waves
subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots veering south in the
afternoon. Showers. Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming north
20 to 30 knots after midnight. Showers. Waves subsiding to 1 to
3 feet, then building to 2 to 4 feet.
.THURSDAY...North gales to 40 knots becoming northeast gales to
35 knots. Rain showers likely. Waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ265-022100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EST Mon Nov 2 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots. Showers in the afternoon. Waves building to 2 to
4 feet.
.TONIGHT...Southeast winds 15 to 25 knots becoming south 10 to
20 knots late. Showers in the evening, then a chance of showers
after midnight. 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 backing southeast by mid
afternoon. Showers and a slight chance of thunderstorms. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots. Showers. Waves
subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south in the
afternoon. Showers. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. Showers likely. Waves subsiding to
calm to 2 feet.
.THURSDAY...North gales to 35 knots. Rain showers, then a chance
of rain showers. Waves building to 6 to 9 feet occasionally to
11 feet, then subsiding to 4 to 7 feet occasionally to 9 feet.
.FRIDAY...North winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ266-022100-
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 Mon Nov 2 2026

.EARLY THIS MORNING...South winds 10 to 20 knots. Waves calm to
2 feet.
.TODAY...South winds 10 to 20 knots backing southeast by late
morning, then increasing to 15 to 25 knots by mid afternoon. A
chance of showers in the afternoon. Waves building to 2 to
4 feet.
.TONIGHT...Southeast winds 15 to 25 knots increasing to 20 to
30 knots by midnight, then veering south late. Showers in the
evening, then a chance of showers after midnight. Waves building
to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to
6 feet occasionally to 8 feet.
.TUESDAY...South winds 15 to 25 knots. A chance of showers in the
morning. A slight chance of thunderstorms. Showers in the
afternoon. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots. Showers. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.WEDNESDAY...South winds 15 to 25 knots. Showers. Waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. Showers likely. Waves subsiding to
1 to 3 feet.
.THURSDAY...North gales to 35 knots. Rain showers, then a chance
of rain showers. Waves building to 5 to 9 feet occasionally to
11 feet.
.FRIDAY...Northeast winds 15 to 25 knots becoming north 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ267-022100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EST Mon Nov 2 2026

.EARLY THIS MORNING...South winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots. A slight chance of showers in the afternoon. Waves calm
to 2 feet.
.TONIGHT...Southeast winds 10 to 20 knots increasing to 15 to
25 knots by midnight, then veering south late. Showers. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.TUESDAY...South winds 15 to 25 knots. Showers. A slight chance
of thunderstorms in the afternoon. Waves subsiding to 1 to
3 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Showers. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south in the
afternoon. Showers. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 15 to 25 knots becoming northeast 20 to
30 knots. A chance of rain showers. Waves building to 5 to 8 feet
occasionally to 10 feet.
.FRIDAY...Northeast winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ261-021500-
MAFOR 0210/
Superior West 13310 11316 12326 11320 11410. Waves 2 feet or less
building to 2 to 3 feet today. Waves 2 to 4 feet subsiding to 1
to 3 feet tonight.

Superior North Central 11400 11310 11320 11326 12336 11346 11330.
Waves 1 to 3 feet today. Waves 3 to 6 feet building to 4 to 7
feet tonight.

Superior South Central 11410 12320 11326 11336 12346 11430. Waves
1 to 3 feet today. Waves 3 to 6 feet tonight.

Superior East 11400 12410 11310 11320 11326 12336. Waves 1 to 3
feet today. Waves 2 to 4 feet building to 3 to 5 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