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000
FZUS63 KMQT 010853
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
353 AM EST Fri Dec 1 2023

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 30.0 inch ridge continues shifting east over the
lake today, extending across Lake Superior and Upper Michigan
through tonight. The ridging increases to 30.1 inches by
Saturday as the parent high over Quebec strengthens to 30.3 inches.
As the ridge drifts northeast Saturday night into Sunday and
weakens to 30.0 inches, a 29.8 inch low tracks northeast through
the Ohio Valley and then the Lower Great Lakes Sunday night at
29.6 inches. Weak troughing over the lake continues through
Monday night while this low continues northeast into New England.
Meanwhile, another low at 29.5 inches over Alberta dives into the
Northern Plains, weakening to 29.8 inches over the Upper Midwest
by Tuesday morning. On Tuesday a 30.3 inch high builds behind the
low over the Plains, pushing east through the day and extending
ridging over the lake again by Tuesday night.

LSZ162-011700-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
353 AM EST Fri Dec 1 2023 /253 AM CST Fri Dec 1 2023/

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...West winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering north late. Waves
calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 10 to 20 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. Waves calm to 2 feet.
.MONDAY...South winds 10 to 20 knots backing east. Waves calm to
2 feet.
.TUESDAY...North winds 10 to 20 knots. Waves calm to 2 feet.

$$

LSZ263-011700-
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-
353 AM EST Fri Dec 1 2023

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves 1 to
3 feet.
.TODAY...West winds 5 to 15 knots backing southwest by mid
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots. Waves subsiding to calm to
2 feet.
.SATURDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast. Waves calm
to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots backing north. Waves
calm to 2 feet.

$$

LSZ264-011700-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
353 AM EST Fri Dec 1 2023

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves 2 to
4 feet.
.TODAY...West winds 5 to 15 knots backing southwest by mid
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering northwest late.
Waves subsiding to calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing south. Waves
calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves building to 1 to 3 feet.
.SUNDAY...Southeast winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots backing northeast after
midnight. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast. Waves calm
to 2 feet.
.TUESDAY...Northeast winds 5 to 15 knots backing north. Waves
calm to 2 feet.

$$

LSZ265-011700-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
353 AM EST Fri Dec 1 2023

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.TODAY...Northwest winds 10 to 20 knots becoming southwest less
than 10 knots by late morning, then veering west by mid
afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering west late. Waves
calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing south by late
morning, then becoming southeast 10 to 20 knots by mid afternoon.
Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots backing north after
midnight. Waves calm to 2 feet.
.MONDAY...Northwest winds 10 to 20 knots backing south. Waves
calm to 2 feet.
.TUESDAY...Northeast winds 10 to 20 knots backing north. Waves
calm to 2 feet.

$$

LSZ266-011700-
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-
353 AM EST Fri Dec 1 2023

.EARLY THIS MORNING...Northwest winds 15 to 25 knots. Waves 2 to
4 feet.
.TODAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots by late morning, then backing southwest by mid
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.TONIGHT...Southwest winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.SATURDAY...East winds 5 to 15 knots veering southeast. Waves
calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. Waves building to 1 to 3 feet.
.SUNDAY NIGHT...East winds 10 to 20 knots backing north after
midnight. Waves subsiding to calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering southeast. Waves
calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots backing north. Waves calm to
2 feet.

$$

LSZ267-011700-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
353 AM EST Fri Dec 1 2023

.EARLY THIS MORNING...Northwest winds 10 to 20 knots. A slight
chance of snow showers. Waves 2 to 4 feet.
.TODAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...Southeast winds 10 to 20 knots. Waves calm to
2 feet.
.SUNDAY...East winds 10 to 20 knots. Waves building to 1 to
3 feet.
.SUNDAY NIGHT...East winds 10 to 20 knots backing northeast after
midnight. Waves subsiding to calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering southeast. Waves
calm to 2 feet.
.TUESDAY...East winds 10 to 20 knots backing north. Waves calm to
2 feet.

$$

LSZ261-011700-
MAFOR 0110/
Superior West 12600 11610 12510 11610 11600 11700. Waves 2 feet
or less.

Superior North Central 11720 11710 11610 11510 11520 11510 11610
11600. Waves 1 to 4 feet.

Superior South Central 11720 11710 11600 11500 11600 12400 11500.
Waves 1 to 4 feet today. Waves 1 foot or less tonight.

Superior East 11720 11710 11700 11600 11700 12300 11100. Waves 1
to 4 feet.

$$

TAP

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

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