258
FZUS63 KMQT 290144
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
944 PM 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 30.2 ridge is moving into the Northern Plains
tonight and will park over the Upper Great Lakes Wednesday through
Thursday. This high slowly moves towards the rest of the lower
Great Lakes region beginning late Thursday, reaching the Mid
Atlantic states by Friday night at 30.2 inches. Ridging over Lake
Superior weakens to 29.9 inches by Saturday night and remains in
place through Sunday. On Sunday night, a 29.6 low pressure lifting
up through the Northern Plains moves towards Thunder Bay.

LSZ162-290945-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
944 PM EDT Tue May 28 2024 /844 PM CDT Tue May 28 2024/

.REST OF TONIGHT...North winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering east in the
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...East winds 10 to 20 knots veering south after
midnight. A chance of showers after midnight. Waves calm to
2 feet.
.FRIDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots veering west. A chance
of showers. Waves calm to 2 feet.
.SUNDAY...East winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ263-290945-
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-
944 PM EDT Tue May 28 2024

.REST OF TONIGHT...North winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering east late.
Waves calm to 2 feet.
.WEDNESDAY NIGHT...East winds 5 to 15 knots becoming west less
than 10 knots after midnight, then backing southeast late. 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 veering south
after midnight. Waves building to 1 to 3 feet.
.FRIDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves building to 1 to 3 feet, then subsiding to calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots backing southeast. A
chance of showers. Waves calm to 2 feet.

$$

LSZ264-290945-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
944 PM EDT Tue May 28 2024

.REST OF TONIGHT...North winds 5 to 15 knots veering northeast
late. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots backing north in the
afternoon, then backing southwest late. Waves calm to 2 feet.
.WEDNESDAY NIGHT...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 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 veering southwest by mid
afternoon. A chance of showers. Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots backing south after
midnight. 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.
.SUNDAY...Southwest winds 5 to 15 knots backing southeast. A
chance of showers. Waves calm to 2 feet.

$$

LSZ265-290945-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
944 PM EDT Tue May 28 2024

.REST OF TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming southwest
less than 10 knots late. 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...South winds 10 to 20 knots. Waves calm to
2 feet.
.FRIDAY...South winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots becoming southwest 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots. A chance of showers. Waves calm to 2 feet.

$$

LSZ266-290945-
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-
944 PM EDT Tue May 28 2024

.REST OF TONIGHT...North winds 10 to 20 knots becoming northeast
5 to 15 knots late. Waves 1 to 3 feet subsiding to calm to
2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots backing northwest
late. Waves 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 10 to 20 knots veering south
after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots becoming southwest 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots. A chance of showers. Waves calm to 2 feet.

$$

LSZ267-290945-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
944 PM EDT Tue May 28 2024

.REST OF TONIGHT...North winds 10 to 20 knots veering northeast
late. Waves 1 to 3 feet 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 veering north by mid
afternoon. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. 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. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.SUNDAY...Southwest winds 10 to 20 knots backing southeast. Waves
calm to 2 feet.

$$
LSZ261-290945-
MAFOR 2903/
Superior West 12800 11810 11100 11200 12300 11200. Waves 1 foot
or less.

Superior North Central 12810 11110 11100 11800 11700 12600. Waves
2 feet or less.

Superior South Central 13810 13800 11700 11600. Waves 1 to 3
feet.

Superior East 12810 11110 11100 11800 13710. Waves 1 to 3 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