987
FZUS63 KMQT 141425
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1025 AM EDT Sat Sep 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...High pressure of 30.3 inches over eastern Quebec will
settle over New England this afternoon and tonight. As the high
then anchors offshore of the New England Coast from Sunday to
Wednesday, it will extend 30.1 inch ridging back into the Great
Lakes region. Meanwhile, a 29.9 inch low pressure trough across
south central Canada and the Dakotas on Sunday will drift into
northern Ontario on Monday before dissipating. A 29.4 inch trough
will then emerge over the western Great Plains on Tuesday. Low
pressure of 29.4 inches will develop along the trough and then
lift into Saskatchewan on Wednesday.

LSZ162-142230-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1025 AM EDT Sat Sep 14 2024 /925 AM CDT Sat Sep 14 2024/

.REST OF TODAY...Southeast winds 5 to 15 knots backing east in
the afternoon. A slight chance of showers and thunderstorms by
mid afternoon. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots veering south late. A slight
chance of showers and thunderstorms. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots backing east late. Waves calm
to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.WEDNESDAY...East winds 10 to 20 knots becoming southeast 5 to
15 knots. A chance of showers. Waves calm to 2 feet.

$$

LSZ263-142230-
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-
1025 AM EDT Sat Sep 14 2024

.REST OF TODAY...South winds 5 to 15 knots backing east late. A
slight chance of showers and thunderstorms by mid afternoon.
Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots veering south after
midnight. A chance of showers and a slight chance of
thunderstorms. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots backing east late. A slight
chance of showers and thunderstorms through early afternoon.
Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ264-142230-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1025 AM EDT Sat Sep 14 2024

.REST OF TODAY...South winds 5 to 15 knots backing southeast
late. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots. A chance of showers and a
slight chance of thunderstorms. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots. A slight chance of showers
and thunderstorms through early afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.

$$

LSZ265-142230-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1025 AM EDT Sat Sep 14 2024

.REST OF TODAY...Southeast winds 10 to 20 knots. Waves calm to
2 feet building to 1 to 3 feet.
.TONIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. A chance of showers and a slight chance
of thunderstorms after midnight. Waves subsiding to calm to
2 feet.
.SUNDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots in the afternoon. A slight chance of showers. A slight
chance of thunderstorms by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ266-142230-
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-
1025 AM EDT Sat Sep 14 2024

.REST OF TODAY...South winds 10 to 20 knots backing southeast
late. Waves calm to 2 feet.
.TONIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots late. A chance of showers and a slight chance of
thunderstorms after midnight. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then backing southeast late. A chance of
showers and a slight chance of thunderstorms. Waves calm to
2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. A slight chance of showers and
thunderstorms after midnight. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ267-142230-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1025 AM EDT Sat Sep 14 2024

.REST OF TODAY...Southeast winds 10 to 20 knots. Waves calm to
2 feet.
.TONIGHT...Southeast winds 10 to 15 knots veering south after
midnight. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 15 knots backing southeast in the
afternoon. A slight chance of showers through early afternoon.
Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 15 knots. A slight chance of
showers and thunderstorms after midnight. Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Waves calm to 2 feet.
.TUESDAY...Southeast winds 10 to 15 knots veering south. Waves
calm to 2 feet.
.WEDNESDAY...Southeast winds 10 to 15 knots. Waves calm to 2
feet.

$$
LSZ261-142230-
MAFOR 1415/
Superior West 11300 13200 12300 12400. Waves 1 foot or less.

Superior North Central 11410 13310 13410 11400. A chance of
showers overnight and Sunday morning. Waves 2 feet or less this
afternoon. Waves 1 to 3 feet tonight and Sunday morning.

Superior South Central 12310 12320 14410. A chance of showers
Sunday morning. Waves 1 to 3 feet this afternoon and tonight.
Waves 2 feet or less Sunday morning.

Superior East 14310 14410. Waves 1 to 2 feet.

$$

Voss

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

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