173
FZUS63 KMQT 060749
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
349 AM EDT Sat Jul 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...A weak high pressure ridge of 29.9 inches will settle
over the western Great Lakes today. As the ridge builds to 30.1
inches while shifting to 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. Then a
weak high pressure of 29.9 inches setting up over Lake Superior on
Tuesday will build to 30.1 inches on Wednesday.

LSZ162-061600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
349 AM EDT Sat Jul 6 2024 /249 AM CDT Sat Jul 6 2024/

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...Southwest winds 5 to 15 knots backing south late. A
slight chance of showers and thunderstorms mid and late
afternoon. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots backing southeast late. A
slight chance of showers and thunderstorms. Waves calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots backing northeast in the
afternoon, then becoming east 10 to 20 knots late. A chance of
showers and thunderstorms. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots veering west after
midnight. A chance of showers and a slight chance of
thunderstorms. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...West winds 5 to 15 knots veering northwest after
midnight. A chance of showers through midnight. Waves calm to
2 feet.
.TUESDAY...Southwest winds 5 to 15 knots veering west. Waves calm
to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ263-061600-
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-
349 AM EDT Sat Jul 6 2024

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots. Patchy fog early. Waves
calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots diminishing to less than
10 knots late. Waves calm to 2 feet.
.SUNDAY...South winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then veering east late. A chance of
showers and a slight chance of thunderstorms. Waves calm to
2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots becoming southwest less
than 10 knots after midnight. A chance of showers and a slight
chance of thunderstorms. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots backing west. Waves calm
to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ264-061600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
349 AM EDT Sat Jul 6 2024

.EARLY THIS MORNING...West winds 5 to 15 knots. Patchy fog. Waves
calm to 2 feet.
.TODAY...West winds 5 to 15 knots backing southwest in the
afternoon. Patchy fog early. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots diminishing to less than
10 knots late. Waves calm to 2 feet.
.SUNDAY...Southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then veering southeast late. A slight
chance of showers. A slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming southwest
less than 10 knots after midnight. A chance of showers and a
slight chance of thunderstorms. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds less than 10 knots veering
northwest after midnight. A chance of showers through midnight.
Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming west less than
10 knots. Waves calm to 2 feet.
.WEDNESDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ265-061600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
349 AM EDT Sat Jul 6 2024

.EARLY THIS MORNING...West winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...West winds 5 to 15 knots backing east in the afternoon,
then veering southeast late. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. A chance of
showers. A slight chance of thunderstorms by mid afternoon. Waves
calm to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots veering southwest after
midnight. A chance of showers and a slight chance of
thunderstorms. Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots veering northwest
after midnight. Waves calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots backing west. Waves calm to
2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering southwest.
Waves calm to 2 feet.

$$

LSZ266-061600-
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-
349 AM EDT Sat Jul 6 2024

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Patchy fog in the morning. Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. A slight chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. A chance of showers and thunderstorms.
Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing east by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots backing north after
midnight. A chance of showers through midnight. Waves calm to
2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots backing west. Waves
calm to 2 feet.

$$

LSZ267-061600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
349 AM EDT Sat Jul 6 2024

.EARLY THIS MORNING...Northwest winds 10 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Northwest winds 10 to 15 knots backing west in the
afternoon, then becoming 5 to 15 knots late. Patchy fog through
early afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing south after midnight,
then backing southeast late. Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots. A chance of showers
and a slight chance of thunderstorms. Waves calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing southeast by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots backing north after
midnight. A chance of showers. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ261-061600-
MAFOR 0609/
Superior West 11600 13500 14400. Waves 1 foot or less.

Superior North Central 12610 19613 11610 11510 12500 12400. Waves
2 feet or less.

Superior South Central 12600 19603 11700 11200 14300. Waves 1
foot or less.

Superior East 13710 19713 13600 11400 11300. 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