772
FZUS63 KMQT 261358
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
958 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...A 29.7 inch low pressure trough extending from southern
Quebec to the Mid-Mississippi Valley will continue to move southeast
this afternoon. Meanwhile, a 30.1 inch high pressure over the
Canadian Prairies will weaken to 30.0 inches as it settles
southeast to Minnesota tonight. This high will then shift east
across the Great Lakes region during Thursday and Thursday night.
As the high builds to 30.1 inches while moving to southern New
England by late 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 across 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. The high will then build to 30.3 inches as it shifts east,
reaching the western Great Lakes Sunday evening.

LSZ162-262200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
958 AM EDT Wed Jun 26 2024 /858 AM CDT Wed Jun 26 2024/

.REST OF TODAY...Northeast winds 10 to 20 knots becoming east
5 to 15 knots in the afternoon, then veering south late. Waves
2 to 4 feet 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.

$$

LSZ263-262200-
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-
958 AM EDT Wed Jun 26 2024

.REST OF TODAY...Northeast winds 5 to 15 knots veering southwest
late. Isolated showers through late morning. Waves 2 to 4 feet
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.

$$

LSZ264-262200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
958 AM EDT Wed Jun 26 2024

.REST OF TODAY...Northeast winds 5 to 15 knots backing north in
the afternoon, then backing west late. Scattered showers through
late morning. 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 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.

$$

LSZ265-262200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
958 AM EDT Wed Jun 26 2024

.REST OF TODAY...Northeast winds 10 to 20 knots backing north in
the afternoon, then becoming northwest 5 to 15 knots late.
Scattered showers through late morning. Waves 1 to 3 feet
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.

$$

LSZ266-262200-
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-
958 AM EDT Wed Jun 26 2024

.REST OF TODAY...North winds 10 to 20 knots backing northwest
late. Scattered showers through late morning. Waves 1 to 3 feet
subsiding to calm to 2 feet, then building to 1 to 3 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.

$$

LSZ267-262200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
958 AM EDT Wed Jun 26 2024

.REST OF TODAY...North winds 10 to 20 knots becoming northwest
late. Scattered showers through late morning. Waves 1 to 3 feet
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.

$$
LSZ261-262200-
MAFOR 2615/
Superior West 11110 11300 12500 12600 11700 11600. Waves 1 to 3
feet this afternoon. Waves 1 foot or less tonight and Thursday
morning.

Superior North Central 11810 11700 14610 11610 11600. Waves 1 to
2 feet.

Superior South Central 12810 14710 12600. Waves 1 to 3 feet.

Superior East 11810 19816 11710 14720 11710 11700. Waves 1 to 4
feet.

$$

Rolfson

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

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