026
FZUS63 KMQT 292001
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
400 PM EDT Fri May 29 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...

30.0 inch high pressure is centered near southern Lake Michigan this
afternoon, with another high pressure over Hudson Bay. This second
high pressure reaches the Upper Great Lakes tomorrow at 30.3 inches
and remains over the area into Sunday. The high weakens to around
30.0 inches by late Sunday as another 30.3 inch high approaches the
area from Hudson Bay, which builds over the Great Lakes Monday into
Tuesday.


LSZ162-300800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
400 PM EDT Fri May 29 2026 /300 PM CDT Fri May 29 2026/

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 10 to 20 knots becoming northeast 20 to
30 knots after midnight, then increasing to 30 knots with a few
gale force gusts to 35 knots possible late. Waves building to
3 to 6 feet occasionally to 8 feet.
.SATURDAY...Northeast winds 20 to 30 knots. Waves building to
4 to 7 feet occasionally to 9 feet.
.SATURDAY NIGHT...Northeast winds 20 to 30 knots diminishing to
5 to 15 knots. Waves subsiding to calm to 2 feet.
.SUNDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots backing northeast
after midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 10 to 20 knots. Waves building to 1 to
3 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers
and thunderstorms. Waves calm to 2 feet.

$$

LSZ263-300800-
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 PM EDT Fri May 29 2026

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 10 to 20 knots increasing to 15 to 25 knots
after midnight. Waves building to 2 to 4 feet.
.SATURDAY...East winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then becoming northeast 20 to 30 knots
late. Waves building to 3 to 6 feet occasionally to 8 feet.
.SATURDAY NIGHT...East winds 15 to 25 knots diminishing to 5 to
15 knots after midnight, then veering south late. Waves subsiding
to calm to 2 feet.
.SUNDAY...Southwest winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southwest winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots. Waves building to 1 to
3 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering southwest. Waves calm
to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ264-300800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
400 PM EDT Fri May 29 2026

.LATE THIS AFTERNOON...South winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 5 to 15 knots increasing to 15 to 25 knots
after midnight. Waves building to 3 to 5 feet occasionally to
7 feet.
.SATURDAY...East winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.SATURDAY NIGHT...East winds 5 to 15 knots becoming south less
than 10 knots late. Waves subsiding to calm to 2 feet.
.SUNDAY...Southwest winds less than 10 knots. Waves calm to
2 feet.
.SUNDAY NIGHT...Southwest winds less than 10 knots backing east
after midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ265-300800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
400 PM EDT Fri May 29 2026

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...Southeast winds 5 to 15 knots becoming east 15 to
25 knots after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet.
.SATURDAY...East winds 15 to 25 knots. Waves subsiding to 2 to
4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then veering south late. Waves
subsiding to calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots backing northeast
after midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots veering southeast after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering southwest. Waves calm
to 2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering southwest. A
chance of showers. Waves building to 1 to 3 feet, then subsiding
to calm to 2 feet.

$$

LSZ266-300800-
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 PM EDT Fri May 29 2026

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...East winds 15 to 25 knots. Waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
.SATURDAY...East winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.SATURDAY NIGHT...East winds 5 to 15 knots veering south late.
Waves subsiding to calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots becoming west less than
10 knots by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots veering northeast
after midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots backing northeast by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. Waves building to 2 to 4 feet.

$$

LSZ267-300800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
400 PM EDT Fri May 29 2026

.LATE THIS AFTERNOON...North winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...Northeast winds 15 to 25 knots veering east after
midnight, then diminishing to 10 to 20 knots late. Waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SATURDAY...East winds 5 to 15 knots backing northeast in the
afternoon. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...Northeast winds 5 to 15 knots veering southeast
after midnight, then veering south late. Waves calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots veering northwest by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming north 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...North winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight. Waves calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.

$$

LSZ261-300200-
MAFOR 2921/
Superior West 11300 11210 11130 12140 11240 11130 11140. Waves 1
to 3 feet building to 3 to 5 feet tonight. Waves 3 to 6 feet
Saturday.

Superior North Central 11600 11210 13230 11320 12220. Waves 1 to
3 feet building to 3 to 5 feet tonight. Waves 3 to 5 feet
subsiding to 2 to 3 feet Saturday.

Superior South Central 11210 11300 13230 11220 12230. Waves
around 1 foot building to 3 to 5 feet tonight. Waves 3 to 5 feet
Saturday.

Superior East 11800 11130 11240 11230 11220 12210 11110. Waves 1
to 3 feet building to 2 to 4 feet tonight. Waves 1 to 3 feet
Saturday.

$$

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