259
FZUS63 KMQT 090200
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1000 PM 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 this
evening over Lake Superior before ridging near 30.0 inches shifts
over the area 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 29.5 inch low
pressure system north of International Falls Minnesota Tuesday
evening moves to near James Bay by Wednesday evening, dragging a
29.6 inch trough over Lake Superior Thursday into Friday.

LSZ162-091000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1000 PM EDT Sat Jun 8 2024 /900 PM CDT Sat Jun 8 2024/

.REST OF TONIGHT...West winds 10 to 20 knots. Sprinkles. Waves
1 to 3 feet.
.SUNDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north late.
Waves calm to 2 feet.
.MONDAY...East 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 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of rain showers through early
afternoon, then rain showers likely by mid afternoon. Waves calm
to 2 feet.
.TUESDAY NIGHT...West winds 10 to 20 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots veering west. A chance
of showers. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ263-091000-
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-
1000 PM EDT Sat Jun 8 2024

.REST OF TONIGHT...West winds 5 to 15 knots. A chance of showers.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY...Northwest winds 10 to 20 knots. Waves subsiding to calm
to 2 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots veering north late.
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 increasing to 10 to 20 knots
by mid afternoon. A chance of rain showers. Waves building to
1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots veering west after
midnight. A chance of showers through midnight. Waves 1 to
3 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers
and thunderstorms. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots becoming west 5 to
15 knots. A chance of showers. Waves building to 1 to 3 feet.

$$

LSZ264-091000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1000 PM EDT Sat Jun 8 2024

.REST OF TONIGHT...West winds 5 to 15 knots becoming northwest
10 to 20 knots late. A chance of showers. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 10 to 20 knots veering north in the
afternoon. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 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...Southwest winds 5 to 15 knots backing south after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. A chance of showers. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A chance of showers through midnight. Waves
building to 1 to 3 feet.
.WEDNESDAY...West winds 5 to 15 knots backing south. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots becoming west 5 to
15 knots. Waves building to 1 to 3 feet.

$$

LSZ265-091000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1000 PM EDT Sat Jun 8 2024

.REST OF TONIGHT...West winds 10 to 20 knots veering northwest
late. A chance of showers. Waves calm to 2 feet.
.SUNDAY...Northwest winds 15 to 25 knots. A slight chance of
showers. Waves building to 3 to 5 feet occasionally to 7 feet.
.SUNDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then veering north late. Waves
subsiding to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots becoming northwest 5 to
15 knots 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 10 to 20 knots. A chance of showers by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers through midnight. Waves calm
to 2 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming south 5 to
15 knots. A chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ266-091000-
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-
1000 PM EDT Sat Jun 8 2024

.REST OF TONIGHT...West winds 10 to 20 knots veering northwest
late. A chance of showers. Waves 1 to 3 feet subsiding to calm to
2 feet, then building to 2 to 4 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 diminishing to
10 to 20 knots after midnight, then veering north late. Waves
subsiding to 2 to 4 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 increasing to 10 to 20 knots
by mid afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots becoming southwest
10 to 20 knots after midnight. A chance of showers. Waves 1 to
3 feet.
.WEDNESDAY...West winds 10 to 20 knots becoming south 5 to
15 knots. A chance of showers. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots veering west. A chance
of showers. Waves building to 1 to 3 feet.

$$

LSZ267-091000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1000 PM EDT Sat Jun 8 2024

.REST OF TONIGHT...West winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 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...North winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight, then veering north late. 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...South winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves building to 1 to 3 feet.
.WEDNESDAY...West winds 10 to 20 knots backing south. A chance of
showers. Waves subsiding to calm to 2 feet.
.THURSDAY...Southwest winds 10 to 20 knots veering west. A chance
of showers. Waves calm to 2 feet.

$$
LSZ261-091000-
MAFOR 0903/
Superior West 11610 12620 13710 12600. Waves 2 to 4 feet
overnight subsiding to waves around 1 foot Sunday evening.

Superior North Central 11610 12720 12730 11830 12720. A chance of
showers overnight and Sunday morning. Waves 2 to 3 feet
overnight building to 2 to 5 feet Sunday and Sunday evening.

Superior South Central 12610 11720 14730 11720. A chance of
showers overnight and Sunday. Waves 1 to 2 feet overnight. Waves
2 to 5 feet and Sunday evening.

Superior East 12610 12720 12730 11830 11720. A chance of showers
overnight and Sunday morning. Waves 2 to 3 feet overnight building
to 3 to 6 feet Sunday and Sunday evening.

$$

BW

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

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