233
FZUS63 KMQT 100733
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
333 AM EDT Mon Jun 10 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...Ridging builds to 30.1 inches this morning as the
high moves overhead and gradually weakens to 30.0 inches Tuesday
afternoon. A 29.4 inch low pressure system over western Ontario
Tuesday evening moves to near James Bay by Wednesday evening,
dragging a 29.6 inch trough over Lake Superior Thursday. 30.0 inch
ridging moves into Lake Superior on Friday.


LSZ162-101545-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
333 AM EDT Mon Jun 10 2024 /233 AM CDT Mon Jun 10 2024/

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

$$

LSZ263-101545-
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-
333 AM EDT Mon Jun 10 2024

.EARLY THIS MORNING...North winds 5 to 15 knots. Waves calm to
2 feet.
.TODAY...North winds 5 to 15 knots backing southwest in the
afternoon. Waves calm to 2 feet.
.TONIGHT...West winds 5 to 15 knots backing south late. Waves
calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots increasing to 10 to 20 knots
late. A chance of rain showers. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 5 to 15 knots veering southwest
after midnight. A slight chance of showers and thunderstorms
through midnight. Waves calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Waves building to
1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots. A chance of
showers and thunderstorms. Waves subsiding to calm to 2 feet.
.THURSDAY...West 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.
.FRIDAY...Southwest winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ264-101545-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
333 AM EDT Mon Jun 10 2024

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

$$

LSZ265-101545-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
333 AM EDT Mon Jun 10 2024

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

$$

LSZ266-101545-
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-
333 AM EDT Mon Jun 10 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots backing south late.
Waves subsiding to calm to 2 feet.
.TUESDAY...South winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. A slight
chance of rain showers by mid afternoon. Waves building to 1 to
3 feet.
.TUESDAY NIGHT...South winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. A chance of showers. Waves building to
2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots backing south by mid
afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots veering southwest
after midnight. A chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots veering northwest. A chance
of showers. Waves calm to 2 feet.
.FRIDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ267-101545-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
333 AM EDT Mon Jun 10 2024

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves 1 to
3 feet.
.TODAY...North winds 10 to 20 knots backing northwest in the
afternoon. Waves building to 2 to 4 feet.
.TONIGHT...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then backing west late. Waves subsiding
to calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. Waves calm to 2 feet.
.TUESDAY NIGHT...South winds 10 to 20 knots. A chance of showers.
Waves building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots backing south by mid
afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots. A chance of
showers and thunderstorms. Waves calm to 2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves calm to 2 feet.

$$

LSZ261-101545-
MAFOR 1009/
Superior West 12810 11200 12500 12400 11300. Waves 1 foot or
less.

Superior North Central 12810 11710 13610 12600. Waves 1 to 2
feet.

Superior South Central 12810 13710 12700 11600. Waves 1 to 3 feet
today. Waves 2 feet or less tonight.

Superior East 11820 11810 13720 12710 11700. Waves 2 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