078
FZUS63 KMQT 061354
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
954 AM EDT Thu Jun 6 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...Troughing of 29.4 inches this morning moves through
Lake Superior today before leaving late this afternoon to the
northeast. The troughing over Lake Superior weakens to 29.6
inches by Friday as the parent low, currently 29.3 inches just
southwest of Hudson Bay, moves over southern James Bay. Weak
troughing at 29.7 inches remains in place over Lake Superior
Saturday before ridging near 30.0 inches pushes into the lake late
Sunday as a high pressure shifts into the Canadian Prairies. The
ridge builds to 30.1 inches over Lake Superior Monday morning as
the high moves overhead and deteriorates with time.

LSZ162-062200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
954 AM EDT Thu Jun 6 2024 /854 AM CDT Thu Jun 6 2024/

.REST OF TODAY...West winds 15 to 25 knots. A chance of showers.
Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...West winds 15 to 25 knots. A slight chance of rain
showers through midnight. Waves subsiding to 2 to 4 feet.
.FRIDAY...West winds 15 to 25 knots. Waves subsiding to 1 to
3 feet.
.FRIDAY NIGHT...West winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.SATURDAY...West winds 15 to 25 knots. A chance of showers. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. A chance of showers. Waves subsiding to calm to
2 feet.
.SUNDAY...Northwest winds 10 to 20 knots becoming north 5 to
15 knots. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$

LSZ263-062200-
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-
954 AM EDT Thu Jun 6 2024

.REST OF TODAY...West winds 15 to 25 knots. A chance of showers.
Waves 3 to 6 feet occasionally to 8 feet, then subsiding to 3 to
5 feet occasionally to 7 feet.
.TONIGHT...West winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A slight chance of rain showers. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.FRIDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots
late. A slight chance of showers through early afternoon. Waves
subsiding to 2 to 4 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.SATURDAY...West winds 10 to 20 knots. A chance of showers. Waves
building to 2 to 4 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots veering northwest
after midnight. A chance of showers. Waves subsiding to 1 to
3 feet.
.SUNDAY...Northwest winds 10 to 20 knots becoming north 5 to
15 knots. Waves subsiding to calm to 2 feet.
.MONDAY...Northeast winds 5 to 15 knots veering southwest. Waves
calm to 2 feet.

$$

LSZ264-062200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
954 AM EDT Thu Jun 6 2024

.REST OF TODAY...Southwest winds 15 to 25 knots veering west
late. A chance of showers. Waves 3 to 6 feet occasionally to
8 feet.
.TONIGHT...West winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A slight chance of rain showers. Waves
subsiding to 3 to 5 feet occasionally to 7 feet.
.FRIDAY...West winds 15 to 25 knots diminishing to 10 to 20 knots
late. A slight chance of showers. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots. Waves subsiding to calm
to 2 feet.
.SATURDAY...West winds 10 to 20 knots. Waves building to 2 to
4 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots veering northwest
after midnight. A chance of showers. Waves subsiding to 1 to
3 feet.
.SUNDAY...Northwest winds 10 to 20 knots veering north. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.MONDAY...North winds 5 to 15 knots backing southwest. Waves
subsiding to calm to 2 feet.

$$

LSZ265-062200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
954 AM EDT Thu Jun 6 2024

.REST OF TODAY...West winds 10 to 20 knots increasing to 15 to
25 knots late. A chance of showers. Waves 1 to 3 feet building to
2 to 4 feet.
.TONIGHT...West winds 20 to 30 knots. A slight chance of showers.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.FRIDAY...West winds 20 to 30 knots diminishing to 15 to 25 knots
late. A slight chance of showers through early afternoon. Waves
subsiding to 1 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 20 knots. Waves subsiding to
calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. 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 becoming north 10 to
20 knots. Waves building to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots becoming southwest 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$

LSZ266-062200-
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-
954 AM EDT Thu Jun 6 2024

.REST OF TODAY...Southwest winds 10 to 20 knots veering west in
the afternoon. A chance of showers. Waves 2 to 4 feet building to
3 to 5 feet occasionally to 7 feet.
.TONIGHT...West winds 15 to 25 knots increasing to 20 to 30 knots
after midnight. A chance of showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.FRIDAY...West winds 20 to 30 knots diminishing to 15 to 25 knots
late. A slight chance of showers. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY NIGHT...West winds 10 to 20 knots. A slight chance of
showers through midnight. Waves subsiding to 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots. Waves 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. A chance of showers. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming north 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots becoming west 5 to 15 knots.
Waves subsiding to calm to 2 feet.

$$

LSZ267-062200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
954 AM EDT Thu Jun 6 2024

.REST OF TODAY...Southwest winds 10 to 20 knots veering west
late. A slight chance of thunderstorms by late morning. A chance
of showers. Waves calm to 2 feet building to 1 to 3 feet.
.TONIGHT...West winds 10 to 20 knots increasing to 15 to 25 knots
after midnight. A chance of showers. Waves building to 3 to
6 feet occasionally to 8 feet.
.FRIDAY...West winds 20 to 30 knots. A chance of showers. Waves
building to 4 to 8 feet occasionally to 10 feet.
.FRIDAY NIGHT...West winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A slight chance of showers through
midnight. Waves subsiding to 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots. Waves 1 to 3 feet.
.SATURDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. A chance of showers. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming north 10 to
20 knots. Waves building to 2 to 4 feet.
.MONDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.

$$
LSZ261-062200-
MAFOR 0615/
Superior West 13630 14620 11620. A chance of showers this
afternoon. Waves 2 to 5 feet.

Superior North Central 11530 13630 12620 12630. A chance of
showers this afternoon. Waves 3 to 6 feet.

Superior South Central 12620 15630. A chance of showers this
afternoon. Waves 2 to 5 feet.

Superior East 11510 11610 12620 14630. A chance of showers. Waves
1 to 3 feet this afternoon. Waves 2 to 4 feet building to 3 to 6
feet tonight. Waves 5 to 7 feet Friday morning.

$$

GS

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

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