975
FZUS63 KMQT 161338
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
938 AM EDT Sun Jun 16 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...High pressure of 30.1 inches over the lower Great
Lakes will continue on toward New England today. Meanwhile, a low
pressure of 29.2 degrees west of Lake Winnipeg will spin
northeast towards northern Manitoba through tonight as it deepens
to 29.0 inches. This low pulls a 29.6 inch trough through Lake
Superior tonight. Weak ridging of 29.9 inches follows for Monday
while a 29.3 inch low pressure moves off the Colorado Rockies into
the Northern Plains. The low will track across northern Minnesota
at 29.5 inches Tuesday, reaching James Bay Wednesday morning as
it pulls a 29.8 inch trough through Lake Superior. As the low
lifts northeast, high pressure to 30.3 inches builds over Lake
Superior for Thursday and Friday.

LSZ162-162145-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
938 AM EDT Sun Jun 16 2024 /838 AM CDT Sun Jun 16 2024/

.REST OF TODAY...Northeast winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon, then veering east late. Patchy
fog by late morning. A chance of showers and a slight chance of
thunderstorms. Waves 1 to 3 feet subsiding to calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots veering west after midnight.
Patchy fog. A chance of showers and thunderstorms. Waves calm to
2 feet.
.MONDAY...West winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. Showers likely and a chance of
thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 10 to 20 knots. Showers likely and a
chance of thunderstorms. Waves calm to 2 feet.
.TUESDAY...East winds 15 to 25 knots veering south by mid
afternoon. A chance of showers and thunderstorms. Waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. Showers likely through midnight. A
chance of thunderstorms. A chance of showers after midnight.
Waves subsiding to calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming north 5 to
15 knots. Waves calm to 2 feet.
.THURSDAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves calm to 2 feet.

$$

LSZ263-162145-
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-
938 AM EDT Sun Jun 16 2024

.REST OF TODAY...Southeast winds 10 to 20 knots veering south in
the afternoon, then diminishing to 5 to 15 knots late. Patchy
fog. A chance of showers and a slight chance of thunderstorms.
Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet.
.TONIGHT...South winds 5 to 15 knots veering west late. Patchy
fog. A chance of showers and thunderstorms. Waves subsiding to
calm to 2 feet.
.MONDAY...West winds 5 to 15 knots backing southwest in the
afternoon, then backing northeast late. A chance of showers
through early afternoon. A chance of thunderstorms. Showers
likely by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Showers likely and a
chance of thunderstorms. 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 and thunderstorms.
Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves building
to 2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...West winds 5 to 15 knots veering north. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...Northeast winds 5 to 15 knots veering east. A chance
of showers. Waves calm to 2 feet.

$$

LSZ264-162145-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
938 AM EDT Sun Jun 16 2024

.REST OF TODAY...Southeast winds 20 to 30 knots becoming south
10 to 20 knots late. Patchy fog. Showers likely by late morning.
A slight chance of thunderstorms. A slight chance of showers by
mid afternoon. Waves 5 to 9 feet occasionally to 11 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...South winds 5 to 15 knots veering west late. Patchy
fog. A chance of showers and a slight chance of thunderstorms.
Waves subsiding to calm to 2 feet.
.MONDAY...West winds 5 to 15 knots backing south late. A chance
of showers and thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots veering southeast after
midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves calm to
2 feet.
.TUESDAY...South winds 10 to 20 knots. A chance of showers. Waves
building to 2 to 4 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers and thunderstorms. Waves 2 to
4 feet.
.WEDNESDAY...West winds 5 to 15 knots veering north. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots veering east. Waves calm to
2 feet.

$$

LSZ265-162145-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
938 AM EDT Sun Jun 16 2024

.REST OF TODAY...Southeast winds 20 to 30 knots diminishing to
15 to 25 knots in the afternoon, then becoming south 10 to
20 knots late. Showers by late morning. A slight chance of
thunderstorms. A chance of showers by mid afternoon. Waves 3 to
6 feet occasionally to 8 feet subsiding to 2 to 4 feet.
.TONIGHT...South winds 10 to 20 knots veering southwest after
midnight, then becoming west 5 to 15 knots late. Patchy fog. A
chance of showers and thunderstorms. Waves subsiding to calm to
2 feet.
.MONDAY...West winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon, then veering east late. A chance of
showers and thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 10 to 20 knots veering south after
midnight. A chance of showers and thunderstorms. Waves calm to
2 feet.
.TUESDAY...South winds 15 to 25 knots. 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 and
thunderstorms. Waves subsiding to calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots veering east. A chance of
showers. Waves calm to 2 feet.

$$

LSZ266-162145-
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-
938 AM EDT Sun Jun 16 2024

.REST OF TODAY...Southeast winds 20 to 30 knots veering south in
the afternoon, then diminishing to 15 to 25 knots late. Showers
by late morning. A chance of thunderstorms. A chance of showers
by mid afternoon. Waves 5 to 9 feet occasionally to 11 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...South winds 10 to 20 knots becoming southwest 5 to
15 knots late. Patchy fog. A chance of showers and thunderstorms.
Waves subsiding to 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots becoming north 10 to 20 knots
in the afternoon, then veering east late. A chance of showers and
thunderstorms. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...East winds 10 to 20 knots veering south after
midnight. A chance of showers and thunderstorms. Waves building
to 1 to 3 feet.
.TUESDAY...South winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots. A chance of showers
and thunderstorms. Waves subsiding to 2 to 4 feet.
.WEDNESDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves subsiding to calm to 2 feet.
.THURSDAY...North winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ267-162145-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
938 AM EDT Sun Jun 16 2024

.REST OF TODAY...Southeast winds 20 to 30 knots veering south
late. Showers likely. A slight chance of thunderstorms by mid
afternoon. Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...South winds 10 to 20 knots. A chance of showers and
thunderstorms. Patchy fog after midnight. Waves subsiding to calm
to 2 feet.
.MONDAY...Southwest winds 10 to 20 knots veering west in the
afternoon, then backing east late. A chance of showers and
thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A chance of showers and thunderstorms. Waves
building to 1 to 3 feet.
.TUESDAY...South winds 15 to 25 knots. Waves building to 2 to
4 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots. A chance of showers
and thunderstorms. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet.
.WEDNESDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots. Showers likely. A chance of thunderstorms. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots veering north. A chance
of showers. Waves calm to 2 feet.

$$
LSZ261-162145-
MAFOR 1615/
Superior West 12310 11200 11300 11500 13600. A chance of showers
this afternoon. A chance of showers and thunderstorms this
evening, then a chance of showers overnight. A chance of showers
Monday morning. Waves 1 to 3 feet.

Superior North Central 11346 11330 11420 12410 11510 11610 11600.
Waves 5 to 9 feet this afternoon. Waves 3 to 6 feet subsiding to
1 to 3 feet tonight. Waves 1 to 3 feet Monday morning.

Superior South Central 11346 11430 11420 12410 11510 12600. A
chance of thunderstorms tonight. Waves 3 to 6 feet this
afternoon. Waves 3 to 5 feet subsiding to 1 to 3 feet tonight.
Waves 1 foot or less Monday morning.

Superior East 11346 11446 11430 12420 11414 11514 11500. A chance
of thunderstorms this afternoon and tonight. Waves 4 to 7 feet
this afternoon. Waves 3 to 6 feet subsiding to 2 to 4 feet
tonight. Waves 1 to 3 feet Monday morning.

$$

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