329
FZUS63 KMQT 081346
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
946 AM EDT Sat Jun 8 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...Weak troughing at 29.7 inches remains in place over
Lake Superior before ridging near 30.0 inches shifts over Lake
Superior late Sunday as high pressure moves into the Canadian
Prairies. The ridge builds to 30.1 inches over Lake Superior
Monday morning as the high moves overhead and gradually weakens to
30.0 inches Tuesday afternoon. A 29.6 inch low pressure system
north of International Falls Minnesota Tuesday evening moves to
near James Bay by Wednesday evening.

LSZ162-082200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
946 AM EDT Sat Jun 8 2024 /846 AM CDT Sat Jun 8 2024/

.REST OF TODAY...West winds 10 to 20 knots backing southwest in
the afternoon, then veering west late. A slight chance of
showers. A slight chance of thunderstorms by mid afternoon. Waves
calm to 2 feet building to 1 to 3 feet, then subsiding to calm to
2 feet.
.TONIGHT...West winds 10 to 20 knots. A slight chance of showers
and thunderstorms through midnight. Waves building to 1 to
3 feet.
.SUNDAY...West winds 10 to 20 knots veering northwest in the
afternoon. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots veering south by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots becoming west 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ263-082200-
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-
946 AM EDT Sat Jun 8 2024

.REST OF TODAY...West winds 5 to 15 knots becoming southwest
10 to 20 knots in the afternoon, then veering west late. A chance
of showers. A slight chance of thunderstorms by mid afternoon.
Waves 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots. A slight chance of
thunderstorms through midnight. A slight chance of showers. Waves
building to 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. A slight chance of showers through early afternoon. Waves
subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north after
midnight. Waves calm to 2 feet.
.MONDAY...North winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots veering southwest. A chance
of showers. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. A chance of showers. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.

$$

LSZ264-082200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
946 AM EDT Sat Jun 8 2024

.REST OF TODAY...West winds 5 to 15 knots becoming southwest
10 to 20 knots in the afternoon, then veering west late. A slight
chance of showers and thunderstorms by mid afternoon. Waves calm
to 2 feet building to 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots becoming northwest 10 to
20 knots late. A slight chance of thunderstorms through midnight.
A chance of showers. Waves building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots veering north in the
afternoon. Waves 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds 5 to 15 knots veering north after
midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...North winds 5 to 15 knots backing west by mid
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots veering southwest. A chance
of showers. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-082200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
946 AM EDT Sat Jun 8 2024

.REST OF TODAY...West winds 10 to 20 knots. A slight chance of
showers by late morning. Waves calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots. A slight chance of
thunderstorms through midnight. A slight chance of showers. Waves
building to 1 to 3 feet.
.SUNDAY...Northwest winds 15 to 25 knots. A slight chance of
showers. Waves building to 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Waves subsiding
to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots becoming southwest 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ266-082200-
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-
946 AM EDT Sat Jun 8 2024

.REST OF TODAY...West winds 10 to 20 knots. A slight chance of
showers. Waves calm to 2 feet building to 1 to 3 feet.
.TONIGHT...West winds 10 to 20 knots. A chance of showers. Waves
subsiding to calm to 2 feet, then building to 2 to 4 feet.
.SUNDAY...Northwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then diminishing to 15 to 25 knots
late. A slight chance of showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to 1 to 3 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing south after
midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. Waves calm
to 2 feet.

$$

LSZ267-082200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
946 AM EDT Sat Jun 8 2024

.REST OF TODAY...Southwest winds 10 to 20 knots veering west in
the afternoon. A slight chance of showers. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots increasing to 10 to 20 knots
after midnight. A chance of showers. Waves building to 1 to
3 feet.
.SUNDAY...Northwest winds 15 to 25 knots. A slight chance of
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Waves subsiding to 2 to 4 feet.
.MONDAY...Northwest winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing southwest
after midnight. Waves subsiding to calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. Waves calm
to 2 feet.

$$
LSZ261-082200-
MAFOR 0815/
Superior West 12520 11620 12610 12620 11610. Waves 1 to 3 feet
this afternoon and tonight. Waves 2 to 4 feet Sunday morning.

Superior North Central 11620 11520 11620 13610 12720. A chance of
showers this evening. Waves 1 to 3 feet this afternoon and
tonight. Waves 2 to 4 feet Sunday morning.

Superior South Central 15610 11620 11720. A chance of showers
late this morning. Waves 1 to 3 feet this afternoon and tonight.
Waves 2 to 4 feet Sunday morning.

Superior East 15610 11620 11720. A chance of showers tonight and
Sunday morning. Waves 1 to 3 feet this afternoon and tonight.
Waves 2 to 4 feet building to 3 to 5 feet Sunday morning.

$$

07

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

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