943
FZUS63 KMQT 080759
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
359 AM EDT Mon Jul 8 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 29.9 inch low pressure trough over Minnesota
will dissipate as it moves over Lake Superior during today. On
Tuesday, a weak high pressure of 29.9 inches will set up over Lake
Superior. The high will build to 30.1 inches on Wednesday, and then
on Thursday, 30.1 inch ridging will extend from central Quebec
across Lake Superior into the Upper Mississippi Valley. On Friday,
30.1 inch high pressure will settle over the Upper Ohio Valley and
Lower Great Lakes while a 29.8 inch trough moves east, extending
from northern Ontario to the Dakotas by evening

LSZ162-081600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
359 AM EDT Mon Jul 8 2024 /259 AM CDT Mon Jul 8 2024/

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. Areas of
fog. Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots. Patchy fog through early
afternoon. Isolated showers and thunderstorms by mid afternoon.
Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Isolated showers and
thunderstorms through midnight. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots backing south in the
afternoon, then backing east late. Waves calm to 2 feet.
.TUESDAY NIGHT...East winds 5 to 15 knots veering west after
midnight. Waves calm to 2 feet.
.WEDNESDAY...East winds 5 to 15 knots backing northeast by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ263-081600-
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 AM EDT Mon Jul 8 2024

.EARLY THIS MORNING...Southwest winds less than 10 knots. Patchy
fog. Waves calm to 2 feet.
.TODAY...West winds 5 to 15 knots backing southwest in the
afternoon. Patchy fog through early afternoon. Waves calm to
2 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering west after
midnight. Isolated showers and thunderstorms through midnight.
Waves calm to 2 feet.
.TUESDAY...West winds less than 10 knots becoming southwest 5 to
15 knots in the afternoon, then veering west late. Waves calm to
2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Northeast winds less than 10 knots backing
west after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots backing south. Waves calm
to 2 feet.

$$

LSZ264-081600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
359 AM EDT Mon Jul 8 2024

.EARLY THIS MORNING...South winds less than 10 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots. Patchy fog. Waves calm to
2 feet.
.TONIGHT...Southwest winds 5 to 15 knots becoming west less than
10 knots late. Waves calm to 2 feet.
.TUESDAY...Northwest winds less than 10 knots backing west in the
afternoon, then increasing to 5 to 15 knots late. Waves calm to
2 feet.
.TUESDAY NIGHT...Southwest winds 5 to 15 knots diminishing to
less than 10 knots after midnight. Waves calm to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds less than 10 knots backing west
after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots backing south. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots backing south. Waves calm
to 2 feet.

$$

LSZ265-081600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
359 AM EDT Mon Jul 8 2024

.EARLY THIS MORNING...South winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...West winds 5 to 15 knots backing east in the afternoon.
Patchy fog through early afternoon. Scattered showers and
isolated thunderstorms in the afternoon. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots veering west after midnight.
Isolated showers and thunderstorms through midnight. Waves calm
to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots veering north in the
afternoon, then veering east late. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds less than 10 knots. Waves calm
to 2 feet.
.WEDNESDAY...Northeast winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots becoming northwest
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.
.FRIDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots late. Waves calm to 2 feet.

$$

LSZ266-081600-
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 AM EDT Mon Jul 8 2024

.EARLY THIS MORNING...South winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TODAY...Southwest winds 5 to 15 knots veering west in the
afternoon. Patchy fog. Scattered showers and isolated
thunderstorms by mid afternoon. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots veering west late. Isolated
showers and thunderstorms through midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds less than 10 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing south. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots becoming south 10 to
20 knots late. Waves calm to 2 feet.

$$

LSZ267-081600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
359 AM EDT Mon Jul 8 2024

.EARLY THIS MORNING...South winds 10 to 20 knots. Isolated
showers. Waves calm to 2 feet.
.TODAY...South winds 10 to 20 knots becoming west 5 to 15 knots
in the afternoon, then veering northwest late. Scattered showers
and thunderstorms. Patchy fog by mid afternoon. Waves calm to
2 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering northwest after
midnight, then veering north late. Isolated showers and
thunderstorms. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots veering northwest in the
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing northwest by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing southwest.
Waves calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves calm to 2 feet.

$$

LSZ261-081600-
MAFOR 0809/
Superior West 12603 14500 12600. Waves 1 foot or less.

Superior North Central 11400 11500 11600 14500 11600. Waves 2
feet or less.

Superior South Central 11410 11500 11700 11100 19106 11300 19306
11400 11500 11600. Waves 2 feet or less.

Superior East 12410 11500 12600 11500 11600 11800. Waves 2 feet
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