810
FZUS63 KMQT 150754
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
354 AM EDT Mon Jul 15 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 29.6 inch trough will sweep across the lake today.
This will be followed by a high averaging 30.1 inches that expands
from the Canadian Prairies to the upper Great Lakes Tuesday
through the end of the week.


LSZ162-151600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
354 AM EDT Mon Jul 15 2024 /254 AM CDT Mon Jul 15 2024/

.EARLY THIS MORNING...West winds 5 to 15 knots. Haze. Waves calm
to 2 feet.
.TODAY...South winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon, then backing west late. Haze. A chance
of showers and thunderstorms. Waves calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots veering northwest late.
Haze. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots. A slight chance of showers
by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.WEDNESDAY...North winds 10 to 20 knots backing west by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots veering northwest
after midnight. Waves calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots veering west. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots becoming west 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ263-151600-
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-
354 AM EDT Mon Jul 15 2024

.EARLY THIS MORNING...Southwest winds less than 10 knots. Haze
and areas of smoke. Waves calm to 2 feet.
.TODAY...South winds less than 10 knots becoming east 5 to
15 knots in the afternoon. Areas of smoke through early
afternoon. Haze. A chance of showers. A chance of thunderstorms
by mid afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. Haze. Waves calm to 2 feet.
.TUESDAY...West winds 5 to 15 knots. A slight chance of showers
by mid afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. A slight chance of showers after midnight. Waves
subsiding to calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing west by mid
afternoon. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...West winds 10 to 20 knots backing southwest. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ264-151600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
354 AM EDT Mon Jul 15 2024

.EARLY THIS MORNING...West winds less than 10 knots. Haze and
areas of smoke. Waves calm to 2 feet.
.TODAY...South winds less than 10 knots becoming southeast 5 to
15 knots in the afternoon, then backing east late. Areas of smoke
through early afternoon. Haze. A chance of showers and a slight
chance of thunderstorms by mid afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots. A slight chance of showers
and thunderstorms through midnight. Haze. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots backing west in the
afternoon. Haze through early afternoon. Waves building to 1 to
3 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
.WEDNESDAY...North winds 5 to 15 knots backing northwest by mid
afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves building to 1 to 3 feet, then subsiding to calm
to 2 feet.

$$

LSZ265-151600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
354 AM EDT Mon Jul 15 2024

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Haze. Waves
calm to 2 feet.
.TODAY...South winds 5 to 15 knots backing east in the afternoon,
then increasing to 10 to 20 knots late. Haze through early
afternoon. A chance of showers and a slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.TONIGHT...Northwest winds 10 to 20 knots backing west late. A
slight chance of showers and thunderstorms through midnight.
Haze. Waves calm to 2 feet.
.TUESDAY...West winds 10 to 20 knots veering northwest in the
afternoon, then backing west late. Haze through early afternoon.
Waves calm to 2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots backing west
after midnight. Waves calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ266-151600-
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-
354 AM EDT Mon Jul 15 2024

.EARLY THIS MORNING...Northwest winds 5 to 15 knots. Waves calm
to 2 feet.
.TODAY...South winds 5 to 15 knots backing southeast in the
afternoon, then becoming east 10 to 20 knots late. A chance of
showers and a slight chance of thunderstorms by mid afternoon.
Waves calm to 2 feet.
.TONIGHT...Northwest winds 10 to 20 knots. A chance of showers
and a slight chance of thunderstorms through midnight. Haze.
Waves calm to 2 feet.
.TUESDAY...Northwest winds 10 to 20 knots. Haze. Waves calm to
2 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots. Waves building
to 1 to 3 feet, then subsiding to calm to 2 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots. Waves
subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ267-151600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
354 AM EDT Mon Jul 15 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 increasing to 10 to 20 knots late. A chance of showers by
mid afternoon. Waves calm to 2 feet.
.TONIGHT...Southeast winds 10 to 20 knots veering northwest after
midnight. A chance of showers and thunderstorms through midnight.
Waves calm to 2 feet.
.TUESDAY...Northwest winds 10 to 20 knots backing west in the
afternoon, then veering northwest late. Haze. Waves building to
1 to 3 feet.
.TUESDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. Waves subsiding to calm to 2 feet, then building
to 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots. Waves
subsiding to calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots becoming southwest 5 to
15 knots. Waves calm to 2 feet.
.FRIDAY...West winds 5 to 15 knots backing southwest. Waves calm
to 2 feet.

$$

LSZ261-151600-
MAFOR 1509/
Superior West 11500 11400 11200 11116 11510 11610 11600 11710. A
chance of thunderstorms this afternoon. Waves 2 feet or less.

Superior North Central 11600 11400 11300 11310 11210 11100 11600
11610. A chance of showers this afternoon and evening. Waves 1 to
2 feet.

Superior South Central 11700 11500 11310 11210 11310 11810 12710.
A chance of showers and thunderstorms this evening. Waves 2 feet
or less.

Superior East 12600 11200 11300 11210 11300 11510 11710. A chance
of showers this evening. Waves 2 feet or less.

$$

WFO MQT

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

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