803
FZUS63 KMQT 260744
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
344 AM EDT Wed Jun 26 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...This morning, Lake Superior is between a 29.3 inch low
over Quebec and a 30.1 inch high over Saskatchewan. As the low
lifts away from the Great Lakes, the high will weaken to 30.0
inches over Minnesota tonight. This high will then shift east
across the Great Lakes region on Thursday. As the high builds to
30.1 inches while moving to New England by Friday morning, a 29.4
inch low pressure will track east to the eastern Dakotas. This
low will then weaken 29.6 inches as it tracks over or just north
of Lake Superior during Friday night and Saturday morning. As the
low heads toward southern Quebec on Saturday, 30.2 inch high
pressure will build over the Northern Plains, reaching the Upper
Great Lakes by Sunday night.

LSZ162-261545-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
344 AM EDT Wed Jun 26 2024 /244 AM CDT Wed Jun 26 2024/

.EARLY THIS MORNING...Northeast winds 10 to 20 knots. A chance of
showers and a slight chance of thunderstorms. Waves 1 to 3 feet.
.TODAY...Northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon, then veering southwest late. A slight
chance of showers and thunderstorms through early afternoon.
Waves building to 2 to 4 feet, then subsiding to calm to 2 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing south in the
afternoon, then becoming southeast 10 to 20 knots late. Waves
calm to 2 feet.
.THURSDAY NIGHT...East winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.
.FRIDAY...Southeast winds 15 to 25 knots. Showers. Waves building
to 1 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 20 knots veering west after
midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves 1 to
3 feet.
.SATURDAY...West winds 15 to 25 knots becoming northwest 10 to
20 knots. A chance of showers. Waves subsiding to calm to 2 feet,
then building to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 20 knots becoming south 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ263-261545-
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-
344 AM EDT Wed Jun 26 2024

.EARLY THIS MORNING...Northeast winds 10 to 20 knots. A chance of
showers and a slight chance of thunderstorms. Waves 1 to 3 feet.
.TODAY...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then veering southwest late. A chance
of showers and a slight chance of thunderstorms through early
afternoon. Waves building to 2 to 4 feet, then subsiding to calm
to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon, then backing south late. Waves calm to
2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots. A slight chance
of showers after midnight. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots. Showers. Waves building
to 1 to 3 feet.
.FRIDAY NIGHT...South winds 10 to 20 knots veering west after
midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves 1 to
3 feet.
.SATURDAY...West winds 15 to 25 knots becoming northwest 10 to
20 knots. A chance of showers. Waves building to 2 to 4 feet,
then subsiding to calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ264-261545-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
344 AM EDT Wed Jun 26 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. A chance of
showers and a slight chance of thunderstorms. Waves 1 to 3 feet.
.TODAY...North winds 5 to 15 knots backing west late. A chance of
showers and a slight chance of thunderstorms through early
afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing south late. Waves
calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots. A slight chance of
showers after midnight. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots. A chance of showers
through early afternoon, then showers by mid afternoon. Waves
building to 2 to 4 feet.
.FRIDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Showers likely through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves 2 to
4 feet.
.SATURDAY...West winds 15 to 25 knots becoming northwest 10 to
20 knots. A chance of showers. Waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet.
.SUNDAY...West winds 5 to 15 knots backing southwest. Waves
subsiding to calm to 2 feet.

$$

LSZ265-261545-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
344 AM EDT Wed Jun 26 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. A slight chance
of showers and thunderstorms. Waves calm to 2 feet building to
1 to 3 feet.
.TODAY...North winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then backing northwest late. A chance of
showers and a slight chance of thunderstorms through early
afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots increasing to 10 to 20 knots
after midnight, then diminishing to 5 to 15 knots late. Waves
calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing east in the
afternoon, then becoming southeast 10 to 20 knots late. Waves
calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...Southeast winds 15 to 25 knots. A chance of showers
through early afternoon, then showers likely by mid afternoon.
Waves building to 1 to 3 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Showers likely through midnight. A
chance of thunderstorms. A chance of showers after midnight.
Waves subsiding to calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Northwest winds 10 to 20 knots becoming southwest 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ266-261545-
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-
344 AM EDT Wed Jun 26 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. A slight chance
of showers and thunderstorms. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.TODAY...North winds 10 to 20 knots backing northwest late. A
slight chance of showers and thunderstorms through early
afternoon. Waves subsiding to calm to 2 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. Waves building to 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing southwest late.
Waves subsiding to calm to 2 feet.
.THURSDAY NIGHT...South winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. A chance of showers through early
afternoon, then showers likely by mid afternoon. Waves building
to 2 to 4 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Showers through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves
subsiding to 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots. A chance of thunderstorms. A chance of showers. Waves
building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots becoming west 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ267-261545-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
344 AM EDT Wed Jun 26 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.TODAY...North winds 10 to 20 knots backing northwest late. A
slight chance of showers and thunderstorms through early
afternoon. Waves subsiding to calm to 2 feet, then building to
1 to 3 feet.
.TONIGHT...Northwest winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
Waves building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Waves subsiding to calm to 2 feet.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of showers. Waves building to
1 to 3 feet.
.FRIDAY NIGHT...Southeast winds 15 to 25 knots veering south
after midnight. Showers and a chance of thunderstorms. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots becoming northwest 15 to
25 knots. A chance of thunderstorms. A chance of showers. Waves
building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ261-261545-
MAFOR 2609/
Superior West 12120 11110 11400 13500 11600. A chance of showers
this morning. Waves 1 to 4 feet today. Waves 1 foot or less
tonight.

Superior North Central 12810 11800 11700 14610. A chance of
showers this morning. Waves 1 to 3 feet.

Superior South Central 14810 11710 11610 12710. A chance of
showers this morning. Waves 1 to 3 feet.

Superior East 13810 11710 14720. Waves 1 to 4 feet.

$$

GS

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weather.gov/mqt/glftable

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