528
FZUS63 KMQT 022001
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 PM EDT Tue Jun 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...

High pressure of 30.4 inches centered over the central UP this
afternoon weakens to 30.3 inches over Lower Michigan tonight, then
continues to weaken to 30.2 inches over the Lower Great Lakes
through Wednesday night. Meanwhile, a 29.8 inch trough approaches
from the northwest, moving over Lake Superior on Thursday. Troughing
persists over the lake through Friday, possibly deepening to 29.7
inches. Weak ridging of 30.0 inches returns this weekend.



LSZ162-030800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Tue Jun 2 2026 /301 PM CDT Tue Jun 2 2026/

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...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
late. 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 veering southwest by mid
afternoon. A chance of showers and a slight chance of
thunderstorms. Waves calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots veering west
after midnight. A chance of rain showers. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing east by mid afternoon.
A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ263-030800-
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-
401 PM EDT Tue Jun 2 2026

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...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 in the afternoon, then backing south late. Waves
building to 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots. A chance of showers
and a slight chance of thunderstorms after midnight. Waves
subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers
and a slight chance of thunderstorms. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots veering northeast by mid
afternoon. A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots veering southeast. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ264-030800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EDT Tue Jun 2 2026

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...South winds 5 to 15 knots veering southwest late.
Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...South winds 5 to 15 knots veering southwest
late. A slight chance of showers after midnight. Waves subsiding
to calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots. A slight chance of
thunderstorms through early afternoon. A chance of showers. Waves
calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing east by mid afternoon.
A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds less than 10 knots increasing to
5 to 15 knots after midnight. A chance of rain showers. Waves
calm to 2 feet.
.SATURDAY...Northeast winds 5 to 15 knots backing north. Waves
calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.

$$

LSZ265-030800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EDT Tue Jun 2 2026

.LATE THIS AFTERNOON...Southeast winds 10 to 20 knots. Waves calm
to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then veering southwest late. Waves calm
to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing southeast in
the afternoon, then increasing to 10 to 20 knots late. Waves calm
to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight, then increasing to 10 to 20 knots late. A slight
chance of showers after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 10 to 20 knots. A chance of showers. A
slight chance of thunderstorms by mid afternoon. 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...Southeast winds 10 to 20 knots becoming east 5 to
15 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. A chance of
showers. Waves calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.

$$

LSZ266-030800-
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-
401 PM EDT Tue Jun 2 2026

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...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
late. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A slight chance of showers after midnight. Waves
building to 2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots. A chance of showers. A
slight chance of thunderstorms by mid afternoon. Waves subsiding
to 1 to 3 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots backing east by mid
afternoon. A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots veering southeast. Waves
calm to 2 feet.

$$

LSZ267-030800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EDT Tue Jun 2 2026

.LATE THIS AFTERNOON...West winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...West winds 5 to 15 knots backing south after midnight,
then veering southwest late. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing southeast
late. 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. Waves subsiding to calm
to 2 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots. A chance of
showers. Waves building to 1 to 3 feet, then subsiding to calm to
2 feet.
.FRIDAY...South winds 10 to 20 knots becoming east 5 to 15 knots
by mid afternoon. A chance of showers. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...North winds 5 to 15 knots becoming southeast 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ261-030200-
MAFOR 0221/
Superior West 11100 11200 11800 11600 13510 11400. Waves 1 foot
or less.

Superior North Central 11300 11310 11410 14510 11510. Waves 2
feet or less.

Superior South Central 12310 11410 11510 11520 11510 11410 11300.
Waves 2 feet or less.

Superior East 12500 11300 11410 12510 11500 11400. 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