599
FZUS63 KMQT 050755
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
355 AM EDT Fri Jul 5 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 29.8 inch low pressure over southwest Wisconsin
will deepen to 29.7 inches as it tracks east, reaching Lower
Michigan this afternoon and then southern Ontario on Saturday. In
its wake, a weak high pressure ridge of 29.9 inches will shift
east, reaching the western Great Lakes during Saturday. As the
ridge builds to 30.1 inches while shifting toward the Lower Great
Lakes on Sunday, a 29.9 inch low pressure trough will move east to
Minnesota. This trough will dissipate as it moves over Lake
Superior on Monday. On Tuesday, weak high pressure of 29.9 inches
will set up over Lake Superior.

LSZ162-051600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
355 AM EDT Fri Jul 5 2024 /255 AM CDT Fri Jul 5 2024/

.EARLY THIS MORNING...Northeast winds 10 to 20 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...Northeast winds 5 to 15 knots backing north late.
Isolated showers. A slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing southwest late. Waves
calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots backing south late. A
slight chance of showers and thunderstorms by mid afternoon.
Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots backing east after
midnight. A slight chance of showers and thunderstorms. Waves
calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots. A chance of showers and
thunderstorms. Waves calm to 2 feet.
.SUNDAY NIGHT...Northeast winds 5 to 15 knots. Waves calm to
2 feet.
.MONDAY...Southwest winds 5 to 15 knots veering northwest. Waves
calm to 2 feet.
.TUESDAY...Southwest winds 5 to 15 knots veering west. Waves calm
to 2 feet.

$$

LSZ263-051600-
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-
355 AM EDT Fri Jul 5 2024

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...Northeast winds 5 to 15 knots backing north late.
Isolated showers through early afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots diminishing to less than
10 knots after midnight, then increasing to 5 to 15 knots late.
Waves calm to 2 feet.
.SATURDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots backing east by mid
afternoon. A chance of showers. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots becoming northeast less
than 10 knots after midnight. Waves calm to 2 feet.
.MONDAY...West winds 5 to 15 knots diminishing to less than
10 knots. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ264-051600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
355 AM EDT Fri Jul 5 2024

.EARLY THIS MORNING...North winds less than 10 knots. Waves calm
to 2 feet.
.TODAY...Northeast winds 5 to 15 knots backing north late. Waves
calm to 2 feet.
.TONIGHT...West winds less than 10 knots increasing to 5 to
15 knots late. Waves calm to 2 feet.
.SATURDAY...West winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming south less
than 10 knots after midnight. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots becoming south less than
10 knots. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots backing west. Waves calm
to 2 feet.

$$

LSZ265-051600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
355 AM EDT Fri Jul 5 2024

.EARLY THIS MORNING...Northeast winds 5 to 15 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...North winds 5 to 15 knots. Scattered showers. Waves calm
to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing west late. Waves
calm to 2 feet.
.SATURDAY...West winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing east late. Waves calm to
2 feet.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. A chance of showers. Waves calm to
2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots veering south after
midnight. Waves calm to 2 feet.
.MONDAY...East winds 5 to 15 knots veering southeast. Waves calm
to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing west. Waves calm to
2 feet.

$$

LSZ266-051600-
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-
355 AM EDT Fri Jul 5 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...North winds 5 to 15 knots. Scattered showers. Waves calm
to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots veering north after
midnight, then backing northwest late. A slight chance of showers
through midnight. Waves calm to 2 feet.
.SATURDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. Waves calm to
2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast. Waves calm
to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ267-051600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
355 AM EDT Fri Jul 5 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...North winds 5 to 15 knots backing northwest in the
afternoon, then becoming north 10 to 20 knots late. Scattered
showers. A slight chance of thunderstorms late afternoon. Waves
calm to 2 feet.
.TONIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then increasing to 10 to 20 knots late.
A slight chance of showers through midnight. Waves calm to
2 feet.
.SATURDAY...Northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. Waves calm to 2 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots backing southeast
after midnight. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. A chance of showers.
Waves calm to 2 feet.

$$

LSZ261-051600-
MAFOR 0509/
Superior West 12110 12100 12700 12600. Waves 1 foot or less.

Superior North Central 11800 12100 11800 12700 12600. Waves 1
foot or less.

Superior South Central 11800 13800 19806 11800 13700. Waves 1
foot or less.

Superior East 11800 11100 11800 11700 19706 14800. Waves 1 foot
or less.

$$

Rolfson

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

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