428
FZUS63 KMQT 030801
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 AM EDT Wed Jun 3 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 Lower Michigan this
morning shifts southeast today through Thursday, weakening to 30.2
inches by tonight as it moves over the Ohio River Valley. Meanwhile,
a 29.8 inch trough approaches from the northwest, moving over Lake
Superior on Thursday. Troughing persists over the lake through
Friday, deepening to 29.7 inches. Weak ridging of 30.0 inches
returns this weekend.



LSZ162-032000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EDT Wed Jun 3 2026 /301 AM CDT Wed Jun 3 2026/

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering south after
midnight. A slight chance of showers and thunderstorms after
midnight. Waves calm to 2 feet.
.THURSDAY...South 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 veering west
after midnight. A slight chance of thunderstorms through
midnight. A chance of rain showers. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to
2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Northeast winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.

$$

LSZ263-032000-
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 AM EDT Wed Jun 3 2026

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...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.
.TONIGHT...South winds 5 to 15 knots. A slight chance of showers
after midnight. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
.THURSDAY...South winds 5 to 15 knots. A chance of showers. Waves
subsiding to calm to 2 feet.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots. A slight chance
of thunderstorms through midnight. A chance of rain showers.
Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to
2 feet.
.SATURDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...East winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.

$$

LSZ264-032000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EDT Wed Jun 3 2026

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing south late. Waves
building to 1 to 3 feet.
.TONIGHT...South winds 5 to 15 knots veering southwest late.
Waves subsiding to calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast late. A
chance of showers. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A slight chance of thunderstorms through
midnight. A chance of rain showers. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...North winds less than 10 knots becoming northeast
5 to 15 knots after midnight. Waves calm to 2 feet.
.SATURDAY...North winds 5 to 15 knots becoming northeast less
than 10 knots. Waves calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots becoming southeast 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ265-032000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EDT Wed Jun 3 2026

.EARLY THIS MORNING...Southwest winds 10 to 20 knots. Waves calm
to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing south in the
afternoon, then becoming southeast 10 to 20 knots late. Waves
calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering southwest after
midnight, then becoming south 10 to 20 knots late. Waves calm to
2 feet.
.THURSDAY...South winds 10 to 20 knots backing southeast late. 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...Southwest 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 backing north after
midnight. A chance of rain 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 becoming southeast 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ266-032000-
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 AM EDT Wed Jun 3 2026

.EARLY THIS MORNING...Southwest winds 10 to 20 knots. Waves calm
to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.TONIGHT...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 1 to 3 feet.
.THURSDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A slight chance of thunderstorms through
midnight. A chance of showers. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.FRIDAY...Southwest winds 5 to 15 knots veering west by mid
afternoon. A chance of showers. Waves subsiding to calm to
2 feet.
.FRIDAY NIGHT...North 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...East winds 5 to 15 knots becoming southeast 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ267-032000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EDT Wed Jun 3 2026

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...Southwest winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots
after midnight, then veering southwest late. Waves building to
2 to 4 feet.
.THURSDAY...South winds 10 to 20 knots. A slight chance of
showers by mid afternoon. Waves subsiding to calm to 2 feet, then
building to 1 to 3 feet.
.THURSDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of showers and a slight chance
of thunderstorms. Waves subsiding to calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY NIGHT...North winds 5 to 15 knots. A chance of rain
showers. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots veering north. Waves
calm to 2 feet.
.SUNDAY...North winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.

$$

LSZ261-031400-
MAFOR 0309/
Superior West 13510 11400 11300 11310 12420. Waves 2 feet or
less.

Superior North Central 14510 13410 11510. Waves 2 feet or less.

Superior South Central 11520 11510 11410 11300 11310 11320 11430
11520. Waves 2 feet or less today. Waves 1 to 2 feet building to
1 to 3 feet tonight.

Superior East 12510 11500 11400 11300 11410 11420 11520. Waves 2
feet or less today. Waves 2 feet or less building to 2 to 4 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