624
FZUS63 KMQT 291958
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
358 PM EDT Wed May 29 2024

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 30.3 ridge of high pressure will remain anchored over
the Upper Great Lakes through Thursday. This high will slowly shift
toward the Lower Great Lakes region beginning late Thursday,
reaching the Mid Atlantic states on Friday night at 30.2 inches.
Ridging over Lake Superior weakens to 29.9 inches Saturday night and
remains in place through Sunday. Sunday night, a 29.6 low pressure
will lift northeast from the Northern Plains into Ontario. An
associated through will reach western Lake Superior on early Monday
morning and then linger over the Upper Great Lakes at 29.7 inches
through Monday.

LSZ162-300400-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
358 PM EDT Wed May 29 2024 /258 PM CDT Wed May 29 2024/

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves calm to 2 feet.
.THURSDAY NIGHT...Northeast winds 10 to 20 knots veering south
after midnight. A slight chance of showers and thunderstorms
after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 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.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots becoming south
5 to 15 knots after midnight. A chance of showers. Waves calm to
2 feet.
.SATURDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...East winds 5 to 15 knots increasing to 10 to 20 knots.
A chance of thunderstorms. Showers likely. Waves calm to 2 feet.
.MONDAY...Southwest winds 10 to 20 knots veering west. A chance
of thunderstorms. A chance of showers. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.

$$

LSZ263-300400-
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-
358 PM EDT Wed May 29 2024

.LATE THIS AFTERNOON...South winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 5 to 15 knots becoming southeast less than
10 knots after midnight, then veering south late. Waves calm to
2 feet.
.THURSDAY...Southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...Southwest winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A chance of showers. A slight chance
of thunderstorms by mid afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots. A chance of showers.
Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...East winds 5 to 15 knots veering south. A chance of
showers and thunderstorms. Waves calm to 2 feet.
.MONDAY...Southwest winds 10 to 20 knots becoming west 5 to
15 knots. Showers likely. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.

$$

LSZ264-300400-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
358 PM EDT Wed May 29 2024

.LATE THIS AFTERNOON...Southwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...West winds 5 to 15 knots diminishing to less than
10 knots after midnight, then backing southwest late. Waves calm
to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast in the
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...South winds 5 to 15 knots veering southwest by mid
afternoon. A chance of showers. Waves 1 to 3 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots. A chance of showers.
Waves subsiding to calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots veering southwest by mid
afternoon. A chance of showers. Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southeast winds 5 to 15 knots veering south. A chance
of showers. Waves building to 1 to 3 feet.
.MONDAY...South winds 10 to 20 knots diminishing to 5 to
15 knots. Showers likely. Waves subsiding to calm to 2 feet.

$$

LSZ265-300400-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
358 PM EDT Wed May 29 2024

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing southwest late. Waves
calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. A slight chance of showers.
Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots. Showers likely. A chance of
showers. Waves calm to 2 feet.

$$

LSZ266-300400-
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-
358 PM EDT Wed May 29 2024

.LATE THIS AFTERNOON...Northwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing southwest late.
Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...South winds 10 to 20 knots. A slight chance of showers.
Waves subsiding to calm to 2 feet.
.FRIDAY 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.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves building to 1 to 3 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. Waves subsiding to calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.MONDAY...South winds 15 to 25 knots diminishing to 10 to
20 knots. Showers likely. A chance of showers. Waves building to
1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ267-300400-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
358 PM EDT Wed May 29 2024

.LATE THIS AFTERNOON...Northwest winds 10 to 20 knots. Waves 1 to
3 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots veering east late.
Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight, then increasing to 10 to 20 knots late. Waves
calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. A chance of showers
after midnight. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots becoming south 10 to 20 knots.
Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots. A chance of showers. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ261-300400-
MAFOR 2921/
Superior West 11300 11200 11100 14200 11210. Waves 1 foot or
less.

Superior North Central 11500 13600 11500 11400 12310. Waves 2
feet or less.

Superior South Central 11700 12600 12500 11300 12310. Waves 2
feet or less.

Superior East 13710 11800 12700 11600 11400. Waves 2 feet or
less.

$$

JSS

Experimental modernized open lake forecast is available online at
weather.gov/mqt/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes