673
FZUS63 KMQT 012001
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
401 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 approaches the area from Hudson Bay
this evening, becoming centered over the Great Lakes by tomorrow
morning. The high weakens to 30.3 inches for Tuesday night, then
moves southeast toward Ohio on Wednesday. Meanwhile, a 29.9 inch
trough approaches from the northwest, moving over Lake Superior on
Thursday; pressure falls over the lake during this time. This trough
remains over the lake through Friday at 29.8 inches.



LSZ162-020800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Mon Jun 1 2026 /301 PM CDT Mon Jun 1 2026/

.LATE THIS AFTERNOON...Northeast winds 10 to 20 knots. Waves 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...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
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-
401 PM EDT Mon Jun 1 2026

.LATE THIS AFTERNOON...Northeast winds 10 to 20 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TONIGHT...Northeast winds 5 to 15 knots veering east 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 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 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-
401 PM EDT Mon Jun 1 2026

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming east less than
10 knots after midnight, then veering southeast late. 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. Waves calm to 2 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 building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots veering west after
midnight. A chance of showers. Waves 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-
401 PM EDT Mon Jun 1 2026

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet building to 1 to 3 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming east less than
10 knots after midnight, then backing north late. 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...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-
401 PM EDT Mon Jun 1 2026

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 15 knots veering east after
midnight, then becoming north less than 10 knots late. Waves
subsiding to 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-
401 PM EDT Mon Jun 1 2026

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. 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...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.

$$

LSZ261-020200-
MAFOR 0121/
Superior West 12120 11110 12210 12200 11100. Waves 2 to 4 feet
tonight. Waves 1 to 2 feet Tuesday.

Superior North Central 11210 12100 11200 11100 13300. Waves 2
feet or less.

Superior South Central 11220 11110 12200 12400 12200. Waves 1 to
3 feet tonight. Waves 1 foot or less Tuesday.

Superior East 11110 12810 11800 12100 12600. 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