569
FZUS63 KMQT 280742
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
342 AM EDT Tue May 28 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 inch high pressure will build over the
Northern Plains today. This high parks over the Upper Great Lakes
Wednesday through Thursday. The high slowly move towards the rest
of the lower Great Lakes region late beginning Thursday night,
reaching the Mid Atlantic states by Friday night at 30.2 inches.
Ridging over Lake Superior weakens to 29.9 inches by Saturday.

LSZ162-281545-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
342 AM EDT Tue May 28 2024 /242 AM CDT Tue May 28 2024/

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of showers. Waves calm to 2 feet.
.TODAY...Northwest winds 10 to 20 knots backing west in the
afternoon, then becoming north 5 to 15 knots late. A chance of
showers. A slight chance of thunderstorms by mid afternoon. Waves
calm to 2 feet.
.TONIGHT...North winds 5 to 15 knots. A slight chance of showers
and thunderstorms through midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering east in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...East winds 5 to 15 knots backing northeast
after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves building to 1 to 3 feet.
.THURSDAY NIGHT...East winds 10 to 20 knots veering south after
midnight. A chance of showers. Waves subsiding to calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots backing south. A chance
of showers. Waves calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ263-281545-
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-
342 AM EDT Tue May 28 2024

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. A slight
chance of showers. Waves calm to 2 feet.
.TODAY...Northwest winds 5 to 15 knots backing west in the
afternoon, then veering north late. A slight chance of showers by
mid afternoon. Waves calm to 2 feet.
.TONIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering southwest
late. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming southeast
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves building to 1 to 3 feet.
.FRIDAY...Southwest winds 10 to 20 knots becoming south 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.

$$

LSZ264-281545-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
342 AM EDT Tue May 28 2024

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves 1 to
3 feet.
.TODAY...Northwest winds 5 to 15 knots veering north late. A
slight chance of showers by mid afternoon. Waves subsiding to
calm to 2 feet, then building to 1 to 3 feet.
.TONIGHT...North winds 5 to 15 knots veering northeast late.
Waves subsiding to calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots backing north in the
afternoon, then backing west late. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast by mid
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. Waves subsiding to calm to
2 feet.
.SATURDAY...South winds 5 to 15 knots veering southwest. A chance
of showers. Waves calm to 2 feet.

$$

LSZ265-281545-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
342 AM EDT Tue May 28 2024

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...Northwest winds 10 to 20 knots veering north late. Waves
subsiding to calm to 2 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots veering southwest. A
chance of showers. Waves calm to 2 feet.

$$

LSZ266-281545-
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-
342 AM EDT Tue May 28 2024

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 2 to
4 feet.
.TODAY...Northwest winds 15 to 25 knots veering north late. Waves
subsiding to 1 to 3 feet, then building to 2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots veering northeast late.
Waves subsiding to 1 to 3 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots backing northwest
late. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ267-281545-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
342 AM EDT Tue May 28 2024

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. Waves 2 to
4 feet.
.TODAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots late. Waves subsiding to 1 to 3 feet, then building to
2 to 4 feet.
.TONIGHT...North winds 10 to 20 knots veering northeast late.
Waves subsiding to calm to 2 feet.
.WEDNESDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves building to 1 to 3 feet.
.WEDNESDAY NIGHT...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. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ261-281545-
MAFOR 2809/
Superior West 12700 12600 11700 13800. A chance of showers this
afternoon. Waves 2 feet or less.

Superior North Central 11720 13710 11820 12810 11110. Waves 2 to
3 feet.

Superior South Central 14720 11820 13810. Waves 1 to 3 feet.

Superior East 11720 11710 12720 11820 12810 11110. Waves 2 to 4
feet.

$$

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