810
FZUS63 KMQT 150202
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1002 PM 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...A 30.3 inch high pressure over Maine settles south over
New England tonight. As the high then anchors offshore of the New
England Coast from Sunday to Wednesday, it will extend 30.0 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 then emerges over the western
Great Plains on Tuesday. This trough develops into a 29.3 inch low
pressure system over southern Saskatchewan on Wednesday, lifting
northeast toward northern Manitoba on Thursday.

LSZ162-151015-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1002 PM EDT Sat Sep 14 2024 /902 PM CDT Sat Sep 14 2024/

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

$$

LSZ263-151015-
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-
1002 PM EDT Sat Sep 14 2024

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

$$

LSZ264-151015-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1002 PM EDT Sat Sep 14 2024

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering south
after midnight. A chance of showers and a slight chance of
thunderstorms. Waves 1 to 3 feet subsiding to calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots. A slight chance of
thunderstorms through early afternoon. A slight chance of
showers. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. A chance of showers. A slight chance of thunderstorms
after midnight. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing south by mid
afternoon. A slight chance of showers and thunderstorms. Waves
calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots. Waves calm to 2
feet.
.WEDNESDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.

$$

LSZ265-151015-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1002 PM EDT Sat Sep 14 2024

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

$$

LSZ266-151015-
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-
1002 PM EDT Sat Sep 14 2024

.REST OF TONIGHT...South winds 10 to 20 knots. A slight chance of
showers and thunderstorms after midnight. Waves 1 to 3 feet
subsiding to calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots. A slight chance of showers
and thunderstorms. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots. A slight chance of
showers. A slight chance of thunderstorms after midnight. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.MONDAY...South winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. A slight chance of thunderstorms through early
afternoon. A slight chance of showers. Waves subsiding to calm to
2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots becoming southeast 10 to 20
knots by late afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ267-151015-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1002 PM EDT Sat Sep 14 2024

.REST OF TONIGHT...Southeast winds 10 to 20 knots veering south
late. Waves calm to 2 feet.
.SUNDAY...South winds 10 to 20 knots becoming southeast 5 to
15 knots in the afternoon, then veering south late. 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 after midnight.
Waves building to 1 to 3 feet.
.MONDAY...South winds 5 to 15 knots. Waves subsiding to calm to 2
feet.
.MONDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$
LSZ261-151015-
MAFOR 1503/
Superior West 13300 12400 12300 11410. Waves 1 foot or less.

Superior North Central 14410 12400 11310 11410. A chance of
showers and thunderstorms tonight through Sunday morning. Waves 1
to 3 feet.

Superior South Central 14410 11410 11310 11410 11420.
Waves 1 to 3 feet.

Superior East 14410 11400 11300 11310 11410. Waves 1 to 3 feet.

$$

Jablonski

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

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