911
FZUS63 KMQT 071959
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
359 PM EDT Fri Jun 7 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...The troughing remains over Lake Superior tonight at
29.6 inches as the broad parent low spins over James Bay at 29.3
inches. Weak troughing at 29.7 inches remains in place over Lake
Superior Saturday 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.The ridge weakens to 29.9 inches on
Wednesday as a trough at 29.6 inches moves into the northern
Plains.

LSZ162-080400-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
359 PM EDT Fri Jun 7 2024 /259 PM CDT Fri Jun 7 2024/

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots. A chance of showers after
midnight. Waves calm to 2 feet.
.SATURDAY...Southwest winds 10 to 20 knots veering west late. A
chance of showers. A slight chance of thunderstorms by mid
afternoon. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. A slight chance of
showers and thunderstorms through midnight. Waves building to
1 to 3 feet.
.SUNDAY...Northwest winds 10 to 20 knots. A slight chance of
showers by mid afternoon. Waves subsiding to calm to 2 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.MONDAY...North winds 10 to 20 knots veering south by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots backing northeast after
midnight. 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
and thunderstorms. Waves calm to 2 feet.

$$

LSZ263-080400-
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-
359 PM EDT Fri Jun 7 2024

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Waves 2 to
4 feet subsiding to 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots. A chance of showers after
midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest in the
afternoon, then veering west late. A chance of showers. A slight
chance of thunderstorms by mid afternoon. Waves building to 1 to
3 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. A slight chance of
showers. Waves subsiding to calm to 2 feet, then building to 2 to
4 feet.
.SUNDAY...West winds 10 to 20 knots veering northwest by mid
afternoon. Waves subsiding to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to 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. Waves
calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers
and thunderstorms. Waves calm to 2 feet.

$$

LSZ264-080400-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
359 PM EDT Fri Jun 7 2024

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Waves 2 to
4 feet.
.TONIGHT...West winds 5 to 15 knots. Waves subsiding to calm to
2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest in the
afternoon, then veering west late. A slight chance of showers. A
slight chance of thunderstorms by mid afternoon. Waves building
to 1 to 3 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots. A slight chance of
thunderstorms through midnight. A chance of showers. Waves
subsiding to calm to 2 feet, then building to 1 to 3 feet.
.SUNDAY...Northwest winds 10 to 20 knots. Waves building to 2 to
4 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots becoming north
5 to 15 knots 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 southwest after
midnight. Waves calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots backing south. A
chance of showers. Waves calm to 2 feet.

$$

LSZ265-080400-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
359 PM EDT Fri Jun 7 2024

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Waves 1 to
3 feet subsiding to calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. A slight chance of
showers after midnight. Waves calm to 2 feet.
.SUNDAY...Northwest winds 15 to 25 knots. A slight chance of
showers. Waves building to 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 20 knots. Waves subsiding
to calm to 2 feet.
.MONDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots backing southwest after
midnight. Waves 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...Southwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ266-080400-
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-
359 PM EDT Fri Jun 7 2024

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Waves 3 to
6 feet occasionally to 8 feet.
.TONIGHT...West winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight. Waves subsiding to calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. A chance of showers. Waves building to 1 to
3 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. A chance of showers.
Waves subsiding to calm to 2 feet, then building to 1 to 3 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 becoming north
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots backing west 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...Southwest winds 10 to 20 knots backing south. A
chance of showers. Waves calm to 2 feet.

$$

LSZ267-080400-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
359 PM EDT Fri Jun 7 2024

.LATE THIS AFTERNOON...West winds 15 to 25 knots. Sprinkles.
Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...West winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.SATURDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots. 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 becoming north
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...Northwest winds 10 to 20 knots. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots becoming west 5 to
15 knots 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...Southwest winds 10 to 20 knots backing south. A
chance of showers. Waves calm to 2 feet.

$$

LSZ261-080400-
MAFOR 0721/
Superior West 11620 12610 11600 12610 11510 11520. A chance of
showers overnight and Saturday morning. Waves 1 to 3 feet.

Superior North Central 11630 12610 11600 12610 12620. Waves 2 to
4 feet subsiding to 1 to 3 feet tonight and Saturday.

Superior South Central 11620 11610 13600 13610. A chance of
showers Saturday afternoon. Waves 1 to 3 feet subsiding to 2 foot
or less tonight and Saturday.

Superior East 11630 11620 13610 11600 12610. A chance of showers
Saturday afternoon. Waves 3 to 6 feet subsiding to 1 to 4 feet
tonight and Saturday.

$$

JSS

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

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