166
FZUS63 KMQT 091333
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
933 AM EDT Sun Jun 9 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...Weak troughing at 29.8 inches will be replaced by ridging
near 30.0 inches as it moves into Lake Superior by this evening. The
ridge builds to 30.1 inches over Lake Superior Monday morning as
the high moves overhead and gradually weakens to 30.0 inches
Tuesday afternoon. A 29.4 inch low pressure system over western
Ontario Tuesday evening moves to near James Bay by Wednesday
evening, dragging a 29.6 inch trough over Lake Superior Thursday.
30.0 inch ridging moves into Lake Superior on Friday.


LSZ162-092145-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
933 AM EDT Sun Jun 9 2024 /833 AM CDT Sun Jun 9 2024/

.REST OF TODAY...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots late. A slight chance of showers by late morning.
Waves 1 to 3 feet subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering north after midnight.
Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering south in the
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to
2 feet.
.TUESDAY...South winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of showers through early
afternoon, then showers likely by mid afternoon. Waves building
to 1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. A chance of showers through midnight. Waves
subsiding to calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers
and thunderstorms. Waves building to 1 to 3 feet, then subsiding
to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet, then subsiding to calm to 2 feet.

$$

LSZ263-092145-
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-
933 AM EDT Sun Jun 9 2024

.REST OF TODAY...North winds 10 to 20 knots backing northwest in
the afternoon. A slight chance of showers. Waves 1 to 3 feet
subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering north after midnight.
Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots backing west in the
afternoon, then backing southwest late. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. A chance of showers. Waves building to 1 to
3 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots veering west after
midnight. A chance of showers. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers and thunderstorms. Waves subsiding
to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ264-092145-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
933 AM EDT Sun Jun 9 2024

.REST OF TODAY...North winds 15 to 25 knots becoming northwest
10 to 20 knots late. A slight chance of showers by late morning.
Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.TONIGHT...Northwest winds 10 to 20 knots veering north after
midnight, then diminishing to 5 to 15 knots late. Waves subsiding
to 1 to 3 feet.
.MONDAY...North winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots. A chance of showers by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots becoming west 5 to
15 knots after midnight. A chance of showers. Waves building to
1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming south 5 to
15 knots. A chance of showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ265-092145-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
933 AM EDT Sun Jun 9 2024

.REST OF TODAY...Northwest winds 15 to 25 knots. A slight chance
of showers. Waves 1 to 3 feet building to 2 to 4 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to
20 knots after midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then backing northwest late. Waves subsiding to
calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots veering west after
midnight. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming southwest 5 to
15 knots. A chance of showers and thunderstorms. Waves calm to
2 feet.
.THURSDAY...West winds 10 to 20 knots. Waves calm to 2 feet.

$$

LSZ266-092145-
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-
933 AM EDT Sun Jun 9 2024

.REST OF TODAY...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots in the afternoon. A slight chance of showers.
Waves 2 to 4 feet building to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to
20 knots after midnight. Waves subsiding to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing south after
midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. A chance of showers. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming south 5 to
15 knots. A chance of showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots veering northwest. A chance
of showers. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ267-092145-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
933 AM EDT Sun Jun 9 2024

.REST OF TODAY...Northwest winds 15 to 25 knots veering north
late. A chance of showers. Waves 2 to 4 feet building to 3 to
6 feet occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming north 10 to
20 knots after midnight. Waves subsiding to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon. Waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing west after
midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of showers. Waves building to
2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots veering northwest. A chance
of showers. Waves calm to 2 feet.

$$
LSZ261-092145-
MAFOR 0915/
Superior West 12710 12600 11700 13800. Waves 1 to 3 feet this
afternoon. Waves 2 feet or less tonight and Monday morning.

Superior North Central 12730 12720 11820 13810. Waves 3 to 5 feet
this afternoon. Waves 2 to 4 feet tonight and Monday morning.

Superior South Central 13730 12720 11820 12810. Waves 2 to 4 feet
building to 3 to 5 feet this afternoon. Waves 3 to 5 feet
subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Monday
morning.

Superior East 12730 11830 12720 11820 12810. Waves 2 to 4 feet
building to 3 to 6 feet this afternoon. Waves 3 to 5 feet
tonight. Waves 2 to 4 feet Monday morning.

$$

07

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

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