044
FZUS63 KMQT 010801
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 AM EDT Mon Jun 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 high pressure of 30.4 inches approaches the area from Hudson Bay
today, becoming centered over the Great Lakes by tomorrow morning.
The high weakens to 30.3 inches for Tuesday night, then moves
southeast to the Ohio River Valley on Wednesday. Meanwhile, a 29.9
inch trough approaches from the northwest, moving over Lake Superior
on Thursday. This trough remains over the lake through Friday.



LSZ162-012000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 AM EDT Mon Jun 1 2026 /300 AM CDT Mon Jun 1 2026/

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Northeast winds 10 to 20 knots increasing to 15 to
25 knots late. Waves building to 2 to 4 feet.
.TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots backing northeast in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing southeast by
mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers and thunderstorms after
midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots veering west. A chance
of showers. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.FRIDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.

$$

LSZ263-012000-
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 EDT Mon Jun 1 2026

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves building to 2 to 4 feet.
.TONIGHT...Northeast winds 10 to 20 knots becoming east 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds less than 10 knots increasing to 5 to
15 knots in the afternoon. 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 increasing to 10 to
20 knots by mid afternoon. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.THURSDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves 1 to 3 feet.
.FRIDAY...West winds 5 to 15 knots backing east. Waves subsiding
to calm to 2 feet.

$$

LSZ264-012000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 AM EDT Mon Jun 1 2026

.EARLY THIS MORNING...East winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots diminishing to less than
10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...East winds less than 10 knots veering southeast 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.
.WEDNESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves building to 1 to 3 feet.
.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves 1 to 3 feet.
.FRIDAY...West winds 5 to 15 knots backing east. Waves subsiding
to calm to 2 feet.

$$

LSZ265-012000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 AM EDT Mon Jun 1 2026

.EARLY THIS MORNING...East winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...East winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon, then diminishing to 5 to 15 knots late. Waves
building to 1 to 3 feet.
.TONIGHT...East winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing north late. Waves subsiding
to calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots veering east in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing southeast by
mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots becoming southwest
15 to 25 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 15 to 25 knots becoming southwest 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots becoming east 5 to 15 knots.
Waves calm to 2 feet.

$$

LSZ266-012000-
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 EDT Mon Jun 1 2026

.EARLY THIS MORNING...East winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...East winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming north less than
10 knots late. Waves subsiding to calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots becoming east less than
10 knots 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 backing southeast by
mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots increasing to 15 to
25 knots after midnight. Waves building to 2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots. A chance of showers. Waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots becoming east 5 to 15 knots.
Waves subsiding to calm to 2 feet.

$$

LSZ267-012000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 AM EDT Mon Jun 1 2026

.EARLY THIS MORNING...East winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...East winds 5 to 15 knots backing north late. Waves calm
to 2 feet.
.TONIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...West winds less than 10 knots increasing to 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South 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 backing east by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. Waves building to
2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots. A chance of showers.
Waves subsiding to calm to 2 feet, then building to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots backing east. A chance of
showers. Waves subsiding to calm to 2 feet.

$$

LSZ261-011400-
MAFOR 0109/
Superior West 11100 11110 11120 12130 11120 11110 11210. Waves 1
to 3 feet building to 2 to 4 feet today. Waves 2 to 4 feet
tonight.

Superior North Central 14210 11210 13200. Waves 2 feet or less.

Superior South Central 11200 12210 11220 12210 12200. Waves 1 to
3 feet.

Superior East 13210 11110 11100 12810 11800. Waves 2 feet or
less.

$$

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