034
FZUS63 KMQT 070139
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
939 PM 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... 30 inch ridging over the Great Lakes will slowly be
replaced by a 29.9 inch trough moving east across northern
Minnesota this evening. 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, then continue to build to near 30.2 inches
over southern Ontario Thursday.


LSZ162-070945-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
939 PM EDT Sat Jul 6 2024 /839 PM CDT Sat Jul 6 2024/

.REST OF TONIGHT...South winds 5 to 15 knots. A slight chance of
showers and thunderstorms after midnight. Waves calm to 2 feet.
.SUNDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
late. A chance of showers and thunderstorms. Waves calm to
2 feet.
.SUNDAY NIGHT...Northeast winds 5 to 15 knots backing west late.
A slight chance of showers and thunderstorms through midnight.
Waves calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. A chance of showers and
a slight chance of thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots backing south by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots backing northeast. Waves
calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots backing northeast. Waves
calm to 2 feet.

$$

LSZ263-070945-
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-
939 PM EDT Sat Jul 6 2024

.REST OF 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 thunderstorms. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots backing north after
midnight, then becoming east less than 10 knots late. A slight
chance of showers and thunderstorms. Waves calm to 2 feet.
.MONDAY...West winds 5 to 15 knots backing southwest by mid
afternoon. A slight chance of showers. A slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds less than 10 knots. Waves calm to
2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots becoming east less
than 10 knots. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots veering southwest. Waves
calm to 2 feet.

$$

LSZ264-070945-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
939 PM EDT Sat Jul 6 2024

.REST OF 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. Patchy dense fog by mid afternoon. A
slight chance of showers and thunderstorms by mid afternoon.
Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots veering south after
midnight, then diminishing to less than 10 knots late. A slight
chance of showers and 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 west less
than 10 knots after midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots backing west by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...West winds less than 10 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots becoming south less
than 10 knots. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-070945-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
939 PM EDT Sat Jul 6 2024

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering south
late. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. A slight
chance of showers and thunderstorms by mid afternoon. Waves calm
to 2 feet.
.SUNDAY NIGHT...South winds 5 to 15 knots. A chance of showers
and thunderstorms. Waves building to 1 to 3 feet, then subsiding
to calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing southeast by mid
afternoon. A slight chance of showers and thunderstorms by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.TUESDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...North winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots veering southeast.
Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$

LSZ266-070945-
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-
939 PM EDT Sat Jul 6 2024

.REST OF TONIGHT...Southeast winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. A slight chance of showers and 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 slight chance of showers and
thunderstorms. Waves building to 1 to 3 feet, then subsiding to
calm to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots backing southeast by mid
afternoon. A slight chance of showers and thunderstorms by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$

LSZ267-070945-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
939 PM EDT Sat Jul 6 2024

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering south
after midnight, then backing southeast late. Patchy fog. Waves
calm to 2 feet.
.SUNDAY...Southeast winds 5 to 15 knots backing east in the
afternoon, then veering southeast late. Patchy fog through early
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...South winds 10 to 20 knots. A chance of showers
and a slight chance of thunderstorms after midnight. Waves calm
to 2 feet.
.MONDAY...South winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. A chance of showers and a slight chance of
thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...South winds 5 to 15 knots veering northwest after
midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 5 to 15 knots veering north. Waves
calm to 2 feet.
.THURSDAY...Northeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.

$$
LSZ261-070945-
MAFOR 0703/
Superior West 14400 11300 11100 12200. A chance of showers and
thunderstorms Sunday afternoon. Waves 1 foot or less.

Superior North Central 13400 12300 11310 11300 19304 11310. Waves
2 feet or less.

Superior South Central 13300 11400 11300 13310. Waves 2 feet or
less overnight and Sunday. Waves 2 to 3 feet Sunday evening.

Superior East 12400 14300 11310 11410. Waves 2 feet or less.

$$

BW

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

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