661
FZUS63 KMQT 020201
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM 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 becomes centered over the Great Lakes
Tuesday morning, then weakens to 30.3 inches for Tuesday night
before moving southeast to Ohio 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 at 29.8
inches. Weak ridging of 30.0 inches returns on Saturday.



LSZ162-020800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EDT Mon Jun 1 2026 /900 PM CDT Mon Jun 1 2026/

.REST OF TONIGHT...Northeast winds 5 to 15 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight, then becoming southwest 5 to
15 knots late. 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. A chance of showers
and a slight chance of thunderstorms after midnight. Waves calm
to 2 feet.
.THURSDAY...South winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. Showers likely through early
afternoon. A chance of thunderstorms. A chance of showers by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. A chance of showers. Waves calm to
2 feet.
.FRIDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ263-020800-
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 EDT Mon Jun 1 2026

.REST OF TONIGHT...Northeast winds 5 to 15 knots veering east
after midnight. Waves 1 to 3 feet 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 10 to 20 knots. Waves building to
1 to 3 feet, then subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers and a slight chance of
thunderstorms after midnight. Waves building to 1 to 3 feet.
.THURSDAY...South winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. A chance of showers. Waves 1 to
3 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots veering west
after midnight. A chance of thunderstorms through midnight. A
chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...East winds 5 to 15 knots backing northeast. Waves calm
to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots veering east. Waves
calm to 2 feet.

$$

LSZ264-020800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EDT Mon Jun 1 2026

.REST OF TONIGHT...Northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...East winds less than 10 knots veering southeast in the
afternoon, then increasing to 5 to 15 knots late. Waves calm to
2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering southwest
late. 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. A slight chance of showers after midnight. Waves
building to 1 to 3 feet.
.THURSDAY...Southwest winds 5 to 15 knots backing south by mid
afternoon. Showers likely through early afternoon. A chance of
showers by mid afternoon. Waves 1 to 3 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots veering west after
midnight. A chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...North winds 5 to 15 knots veering east. Waves calm to
2 feet.
.SATURDAY...East winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-020800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EDT Mon Jun 1 2026

.REST OF TONIGHT...Northeast winds 5 to 15 knots becoming east
less than 10 knots after midnight, then veering south late. Waves
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...Southeast winds 5 to 15 knots veering south
after midnight, then becoming southwest 10 to 20 knots late.
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 becoming southwest
15 to 25 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves calm to 2 feet.
.FRIDAY...North winds 10 to 20 knots becoming east 5 to 15 knots.
Waves calm to 2 feet.
.SATURDAY...East winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ266-020800-
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 EDT Mon Jun 1 2026

.REST OF TONIGHT...Northeast winds 5 to 15 knots veering east
after midnight, then becoming north less than 10 knots late.
Waves calm to 2 feet.
.TUESDAY...North winds less than 10 knots veering east in the
afternoon, then increasing to 5 to 15 knots late. Waves calm to
2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering southwest
late. 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. A chance of showers.
Waves subsiding to calm to 2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.FRIDAY...North winds 5 to 15 knots veering northeast. Waves calm
to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots veering east. Waves
calm to 2 feet.

$$

LSZ267-020800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EDT Mon Jun 1 2026

.REST OF 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...Southeast winds less than 10 knots becoming
south 5 to 15 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 10 to 20 knots. Waves building to
2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots backing southeast by mid
afternoon. Waves subsiding to calm to 2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots veering northeast. Waves calm
to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots becoming east 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ261-020800-
MAFOR 0203/
Superior West 11110 12210 12200 13100. Waves 1 to 3 feet
overnight and Tuesday. Waves 1 foot or less Tuesday evening.

Superior North Central 11100 11200 15300. Waves 1 foot or less.

Superior South Central 12200 12400 12200 11210 11310. Waves 2
feet or less.

Superior East 11110 13100 13600 11300. Waves 1 foot 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