710
FZUS63 KMQT 250753
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
353 AM EDT Wed Sep 25 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 29.7 inch low pressure centered over Lower Michigan
early this morning lifts into northern Ontario today. Meanwhile, a
30.0 inch high pressure builds over the Mid- Mississippi Valley
today before building to 30.1 inches over the western Great Lakes
by Thursday morning. High pressure ridging continues over the
Great Lakes at 30.0 inches Friday into Saturday despite the
remnants of a 29.6 inch tropical system over the Southeast and a
29.7 inch low over Hudson Bay. High pressure ridging builds over
the Upper Great Lakes to 30.1 inches Sunday as a 30.2 inch high
pressure moves into northern Ontario from the west.

LSZ162-251600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
353 AM EDT Wed Sep 25 2024 /253 AM CDT Wed Sep 25 2024/

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering north late. Waves
calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots backing east late. Waves
calm to 2 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots veering southwest
after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots veering north. Waves
calm to 2 feet.
.SUNDAY...Northeast winds 10 to 20 knots veering east. Waves calm
to 2 feet.

$$

LSZ263-251600-
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 EDT Wed Sep 25 2024

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to 2
feet.
.TODAY...West winds 5 to 15 knots backing southwest late. Waves
calm to 2 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering west after
midnight, then veering north late. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots becoming southwest less
than 10 knots after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots veering north. Waves calm to
2 feet.
.SUNDAY...Northeast winds 5 to 15 knots veering south. Waves calm
to 2 feet.

$$

LSZ264-251600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
353 AM EDT Wed Sep 25 2024

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...West winds 5 to 15 knots. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots veering northwest after
midnight, then becoming north less than 10 knots late. Waves calm
to 2 feet.
.THURSDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots becoming southwest less
than 10 knots after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots veering north. Waves calm to
2 feet.
.SUNDAY...Northeast winds 5 to 15 knots veering southeast. Waves
calm to 2 feet.

$$

LSZ265-251600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
353 AM EDT Wed Sep 25 2024

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...West winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southeast in the
afternoon, then backing east late. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots veering north. Waves
calm to 2 feet.
.SUNDAY...Northeast winds 10 to 20 knots becoming southeast 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ266-251600-
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 EDT Wed Sep 25 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing south in the
afternoon, then backing east late. Waves calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.FRIDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots backing north. Waves calm
to 2 feet.
.SUNDAY...Northeast winds 10 to 20 knots becoming southeast 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ267-251600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
353 AM EDT Wed Sep 25 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...Northwest winds 10 to 20 knots backing west late. Waves
building to 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing west in the
afternoon, then veering north late. Waves calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Southeast winds 5 to 15 knots veering south after
midnight. Waves calm to 2 feet.
.SATURDAY...South winds 5 to 15 knots becoming north 10 to
20 knots. Waves calm to 2 feet.
.SUNDAY...North winds 10 to 20 knots veering southeast. Waves
calm to 2 feet.

$$

LSZ261-251600-
MAFOR 2509/
Superior West 11600 12610 13510 11710 11810. Waves 2 feet or
less.

Superior North Central 11600 11700 14610 11600 11700. Waves 1 to
2 feet.

Superior South Central 11700 11710 11610 12710 13600. Waves 2
feet or less.

Superior East 11800 14710 11710 12700. Waves 2 feet or less.

$$

Jablonski

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

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