113
FZUS63 KMQT 140757
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
357 AM EDT Sun Jul 14 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...Lake Superior remains situated between high pressure
averaging 30.1 inches over the Appalachians and low pressure
averaging 29.7 inches over the northern Plains, with a weak 29.8
inch trough moving through this morning. This pattern will favor
warm southwesterly flow and the potential for episodes of showers
and thunderstorms. A trough of 29.6 inches sweeps across Lake
Superior Monday, with a 30.1 inch high gradually building in
through the middle of next week.


LSZ162-141600-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
357 AM EDT Sun Jul 14 2024 /257 AM CDT Sun Jul 14 2024/

.EARLY THIS MORNING...West winds 10 to 20 knots. A slight chance
of showers and thunderstorms. Waves calm to 2 feet.
.TODAY...West winds 10 to 20 knots backing southwest in the
afternoon. Waves building to 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots veering northwest after
midnight, then backing southwest late. Waves subsiding to calm to
2 feet.
.MONDAY...South winds 5 to 15 knots becoming east 10 to 20 knots
in the afternoon, then veering west late. A chance of showers and
a slight chance of thunderstorms. Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots. Waves calm to
2 feet.
.TUESDAY...West winds 10 to 20 knots. Waves building to 1 to
3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing northwest. Waves
calm to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots veering west. Waves
calm to 2 feet.

$$

LSZ263-141600-
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-
357 AM EDT Sun Jul 14 2024

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

$$

LSZ264-141600-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
357 AM EDT Sun Jul 14 2024

.EARLY THIS MORNING...Southwest winds 5 to 15 knots. A slight
chance of showers and thunderstorms. Waves calm to 2 feet.
.TODAY...West winds 10 to 20 knots backing southwest late. A
slight chance of showers and thunderstorms through early
afternoon. Waves building to 2 to 4 feet.
.TONIGHT...West winds 5 to 15 knots veering northwest after
midnight, then becoming west less than 10 knots late. Haze. Waves
subsiding to calm to 2 feet.
.MONDAY...South winds 5 to 15 knots backing east late. Haze. A
chance of showers. A slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots. A slight chance of
showers and thunderstorms through midnight. Waves building to
1 to 3 feet.
.TUESDAY...West winds 5 to 15 knots. Waves subsiding to calm to
2 feet.
.TUESDAY NIGHT...Northwest winds 5 to 15 knots veering north
after midnight. Waves building to 1 to 3 feet.
.WEDNESDAY...North winds 5 to 15 knots backing northwest. Waves
subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots backing southwest. Waves
calm to 2 feet.

$$

LSZ265-141600-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
357 AM EDT Sun Jul 14 2024

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

$$

LSZ266-141600-
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-
357 AM EDT Sun Jul 14 2024

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

$$

LSZ267-141600-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
357 AM EDT Sun Jul 14 2024

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

$$

LSZ261-141600-
MAFOR 1409/
Superior West 13610 11520 11620 11610 11700 11600. Waves 1 to 3
feet.

Superior North Central 11510 11610 11620 12520 12610 11700. Waves
1 to 3 feet today. Waves 2 to 4 feet subsiding to 1 to 2 feet
tonight.

Superior South Central 11500 15610 11610. Waves 1 to 2 feet.

Superior East 11410 11510 11600 11610 12600 11500 11600. Waves 1
to 3 feet.

$$

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