267
FZUS63 KMQT 141338
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
938 AM EDT Fri Jun 14 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...Ridging of 30.1 inches builds over Lake Superior by
this afternoon. This high pressure continues building to 30.2
inches as it moves over the central Great Lakes Saturday,
continuing to shift east toward New England on Sunday. Deepening
low pressure near 29.4 inches emerges out of the High Plains
Saturday night, moving northeast towards Hudson Bay Sunday into
Monday as it deepens to 29.0 inches. This low extends a 29.6 inch
trough over Lake Superior Sunday night before weak ridging of 29.9
inches moves over Lake Superior from the Northern Plains Monday.
A low pressure around 29.5 inches looks to move off the Colorado
Rockies into the Northern Plains early next week.

LSZ162-142145-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
938 AM EDT Fri Jun 14 2024 /838 AM CDT Fri Jun 14 2024/

.REST OF TODAY...Northeast winds 5 to 15 knots veering east in
the afternoon, then backing northeast late. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots backing northeast after
midnight, then veering east late. Waves calm to 2 feet.
.SATURDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. A slight chance of showers by mid afternoon.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots. A chance of
showers through midnight, then showers and a slight chance of
thunderstorms after midnight. Waves building to 1 to 3 feet.
.SUNDAY...East winds 10 to 20 knots. A chance of showers. Waves
subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. A chance of showers and thunderstorms.
Waves calm to 2 feet.
.MONDAY...West winds 5 to 15 knots becoming northeast 10 to
20 knots. A chance of showers. A chance of thunderstorms. Showers
likely. Waves calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots becoming southwest 15 to
25 knots. A chance of showers and thunderstorms. Waves building
to 1 to 3 feet.

$$

LSZ263-142145-
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 Fri Jun 14 2024

.REST OF TODAY...Northeast winds less than 10 knots increasing to
5 to 15 knots in the afternoon, then veering southeast late.
Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots veering south late. Waves
calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots backing southeast late.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. A chance of showers through
midnight, then showers and a slight chance of thunderstorms after
midnight. Waves building to 2 to 4 feet.
.SUNDAY...Southeast winds 10 to 20 knots veering south by mid
afternoon. A chance of showers. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves subsiding to calm to 2 feet.
.MONDAY...West winds 5 to 15 knots backing east. A chance of
showers. Waves calm to 2 feet.
.TUESDAY...Southeast winds 10 to 20 knots veering south. A chance
of showers and thunderstorms. Waves building to 1 to 3 feet.

$$

LSZ264-142145-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
938 AM EDT Fri Jun 14 2024

.REST OF TODAY...Northeast winds less than 10 knots increasing to
5 to 15 knots in the afternoon, then veering southeast late.
Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots late. Waves building to 1 to 3 feet.
.SATURDAY NIGHT...South winds 10 to 20 knots backing southeast
after midnight. A chance of showers. Waves building to 2 to
4 feet.
.SUNDAY...Southeast winds 10 to 20 knots. A chance of showers.
Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves subsiding to calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing southeast. A
chance of showers. Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves building to 1 to 3 feet.

$$

LSZ265-142145-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
938 AM EDT Fri Jun 14 2024

.REST OF TODAY...North winds 5 to 15 knots veering northeast in
the afternoon, then veering southeast late. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering south after
midnight. Waves calm to 2 feet.
.SATURDAY...South winds 10 to 20 knots backing southeast in the
afternoon, then increasing to 15 to 25 knots late. Waves calm to
2 feet.
.SATURDAY NIGHT...South winds 15 to 25 knots backing southeast
after midnight. A slight chance of showers through midnight, then
showers likely after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 15 to 25 knots. Showers likely through
early afternoon. A chance of thunderstorms. A chance of showers
by mid afternoon. Waves building to 2 to 4 feet, then subsiding
to 1 to 3 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.TUESDAY...Southeast winds 10 to 20 knots veering south. A chance
of showers. Waves calm to 2 feet.

$$

LSZ266-142145-
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 Fri Jun 14 2024

.REST OF TODAY...North winds 5 to 15 knots backing west late.
Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then backing southeast late. Waves
building to 1 to 3 feet.
.SATURDAY NIGHT...South winds 15 to 25 knots. A chance of
showers. Waves building to 2 to 4 feet.
.SUNDAY...Southeast winds 15 to 25 knots veering south by mid
afternoon. Showers likely through early afternoon. A chance of
showers by mid afternoon. Waves building to 3 to 6 feet
occasionally to 8 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. A chance of showers and
thunderstorms. Waves subsiding to calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.TUESDAY...South winds 15 to 25 knots. A chance of showers. Waves
building to 2 to 4 feet.

$$

LSZ267-142145-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
938 AM EDT Fri Jun 14 2024

.REST OF TODAY...North winds 5 to 15 knots backing northwest in
the afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing southeast after
midnight, then veering south late. Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots in the afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. A chance of showers after
midnight. Waves building to 1 to 3 feet.
.SUNDAY...Southeast winds 15 to 25 knots. Showers. Waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet.
.SUNDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of showers and thunderstorms.
Waves subsiding to calm to 2 feet.
.MONDAY...South winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.TUESDAY...South winds 10 to 20 knots increasing to 15 to
25 knots. A chance of showers. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.

$$
LSZ261-142145-
MAFOR 1415/
Superior West 11100 12300 11200 12100 12300. Waves 1 foot or
less.

Superior North Central 11100 12300 11400 14410. Waves 1 to 2
feet.

Superior South Central 11800 11200 11300 11310 14410. Waves 1 to
2 feet.

Superior East 11800 11700 12600 11800 11300 11410 11400. Waves 2
feet or less.

$$

GS

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

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