344
FZUS63 KMQT 020300
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM 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 30.4 inch high pressure over the Eastern Seaboard continues to
extend a 30.1 inch ridge over Lake Superior tonight. Monday, a 29.4
inch low lifts from Colorado into the Northern Plains, then heads
towards the Upper Mississippi Valley at 29.6 inches Monday night and
Tuesday. Pressure falls over Lake Superior from 30.1 inches Monday
morning to a gradient of 29.9-29.6 inches (higher east) Tuesday
morning. The Colorado low then slowly trudges northeast from
southern Minnesota throughout Wednesday before arriving over Lake
Superior Wednesday night at 29.5 inches. Thursday into Friday, the
low departs swiftly northeast toward Newfoundland while remaining at
29.7 inches and ridging to 30.0 inches builds in over Lake Superior.



LSZ162-020900-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EST Sun Nov 1 2026 /900 PM CST Sun Nov 1 2026/

.REST OF TONIGHT...Southeast winds 5 to 15 knots backing east
late. Patchy fog. Waves calm to 2 feet.
.MONDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots. Patchy fog in the morning. A chance of showers in the
morning, then showers in the afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then veering southeast late. Showers in the
evening, then a chance of showers after midnight. Waves building
to 1 to 3 feet, then subsiding to calm to 2 feet.
.TUESDAY...South winds 10 to 20 knots backing northeast in the
afternoon. Showers. A slight chance of thunderstorms in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 10 to 20 knots. A slight chance
of thunderstorms in the evening. Showers. Waves building to 2 to
4 feet.
.WEDNESDAY...Northeast winds 15 to 25 knots. Showers. Waves
subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots after midnight. Showers. Waves 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 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northeast winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.

$$

LSZ263-020900-
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-
1000 PM EST Sun Nov 1 2026

.REST OF 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 in the afternoon. Waves calm
to 2 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots becoming south
5 to 15 knots late. Showers in the evening, then a chance of
showers after midnight. Waves building to 1 to 3 feet.
.TUESDAY...South winds 5 to 15 knots backing east in the
afternoon. Showers. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 10 to 20 knots. Showers. Waves
building to 2 to 4 feet.
.WEDNESDAY...Northeast winds 10 to 20 knots. Showers. Waves
subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots increasing to gales
to 35 knots after midnight. Rain showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.THURSDAY...North gales to 35 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 3 to 5 feet
occasionally to 7 feet.
.FRIDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ264-020900-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EST Sun Nov 1 2026

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

$$

LSZ265-020900-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EST Sun Nov 1 2026

.REST OF TONIGHT...South winds 5 to 15 knots. Patchy fog after
midnight. Waves calm to 2 feet.
.MONDAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots. Patchy fog in the morning. Showers in the afternoon.
Waves building to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 15 to 25 knots increasing to
20 to 30 knots by midnight, then becoming south 15 to 25 knots
late. Showers in the evening, then a chance of showers after
midnight. Waves building to 2 to 4 feet.
.TUESDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Showers and a slight chance of
thunderstorms. Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 15 to 25 knots backing east
after midnight. Showers. Waves building to 1 to 3 feet.
.WEDNESDAY...East winds 15 to 25 knots veering south in the
afternoon. Showers. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots increasing to 20 to
30 knots after midnight. Showers likely. Waves building to 2 to
4 feet.
.THURSDAY...North gales to 40 knots. Rain showers, then a chance
of rain showers. 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 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ266-020900-
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-
1000 PM EST Sun Nov 1 2026

.REST OF TONIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots late. Patchy fog. 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 increasing to
20 to 30 knots by midnight, then veering south late. Showers.
Waves building to 3 to 5 feet occasionally to 7 feet.
.TUESDAY...South winds 15 to 25 knots. Showers and a slight
chance of thunderstorms. Waves subsiding to 2 to 4 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots. Showers. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.WEDNESDAY...Southeast winds 15 to 25 knots veering south in the
afternoon. Showers. Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots increasing to 20 to
30 knots after midnight. Showers likely. Waves building to 3 to
5 feet occasionally to 7 feet.
.THURSDAY...North gales to 40 knots becoming northeast gales to
35 knots. Rain showers, then a chance of rain showers. Waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet.
.FRIDAY...Northeast winds 15 to 25 knots diminishing to 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ267-020900-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EST Sun Nov 1 2026

.REST OF TONIGHT...South winds 10 to 20 knots becoming southwest
5 to 15 knots by midnight, then backing south late. 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 10 to 20 knots increasing to
15 to 25 knots by midnight, then veering south late. Showers.
Waves building 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 10 to 20 knots increasing to 15 to
25 knots after midnight. Showers. Waves 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 increasing to 15 to
25 knots after midnight. A chance of showers. Waves subsiding to
calm to 2 feet, then building to 1 to 3 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 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northeast winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.

$$

LSZ261-020900-
MAFOR 0204/
Superior West 11303 12300 12310 11216 12226. Waves 2 feet or less
overnight and Monday. Waves 2 to 3 feet Monday evening.

Superior North Central 13400 11410 11320 11326 12336. Waves 1
foot or less overnight. Waves 1 to 3 feet Monday. Waves 1 to 3
feet building to 2 to 4 feet Monday evening.

Superior South Central 13410 12320 11330 11336 11346. Waves 1
foot or less overnight. Waves 2 feet or less building to 2 to 3
feet Monday. Waves 2 to 4 feet Monday evening.

Superior East 12510 13410 11310 12326. Waves 1 to 3 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