057
FZUS63 KMQT 241353
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
953 AM EDT Mon Jun 24 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 29.8 inch ridge over the Upper Great Lakes today
will shift southeast, reaching the Appalachians on Tuesday while
building to 30.0 inches. Tonight, a 29.3 inch low will track east
through Manitoba, spinning across northern Ontario into James Bay
Tuesday at 29.2 inches. This low will support a 29.5 inch trough
crossing Lake Superior tonight and Tuesday. Behind the trough,
29.9 inch high pressure from the High Plains will extend into the
Upper Great Lakes Wednesday. This high anchors and builds to 30.0
inches Thursday morning over the Upper Great Lakes. A 29.3 inch
low tracks across northern Minnesota on Friday pushing a 29.4 inch
trough over western Lake Superior Friday afternoon.

LSZ162-242200-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
953 AM EDT Mon Jun 24 2024 /853 AM CDT Mon Jun 24 2024/

.REST OF TODAY...South winds 5 to 15 knots backing east in the
afternoon, then increasing to 10 to 20 knots late. Waves calm to
2 feet.
.TONIGHT...East winds 10 to 20 knots veering south after
midnight, then veering southwest late. A chance of showers and
thunderstorms. Waves calm to 2 feet.
.TUESDAY...Southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then veering west late. Waves building
to 2 to 4 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 becoming south 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots veering north
after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots veering west. Showers
likely. A chance of showers. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.

$$

LSZ263-242200-
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-
953 AM EDT Mon Jun 24 2024

.REST OF TODAY...South winds 5 to 15 knots backing southeast
late. Waves calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots increasing to 10 to 20 knots
after midnight, then veering southwest late. A chance of showers
and thunderstorms. Waves building to 1 to 3 feet.
.TUESDAY...West winds 10 to 20 knots becoming southwest 15 to
25 knots in the afternoon, then veering west late. Waves building
to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...North winds 5 to 15 knots backing southwest by mid
afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming south
less than 10 knots after midnight. Waves calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots becoming southeast 10 to
20 knots. A chance of showers. Waves building to 1 to 3 feet.
.FRIDAY...South winds 10 to 20 knots veering west. Showers
likely. A chance of thunderstorms. A chance of showers. Waves
1 to 3 feet.

$$

LSZ264-242200-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
953 AM EDT Mon Jun 24 2024

.REST OF TODAY...Southwest winds 5 to 15 knots backing southeast
late. Waves calm to 2 feet.
.TONIGHT...South winds 10 to 20 knots veering southwest late. A
chance of showers and thunderstorms. Patchy fog after midnight.
Waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet.
.TUESDAY...West winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. Waves subsiding to 1 to 3 feet, then building
to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots. Waves building to
3 to 6 feet occasionally to 8 feet, then subsiding to 2 to
4 feet.
.WEDNESDAY...North winds 5 to 15 knots backing west by mid
afternoon. Waves subsiding to calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...South winds 5 to 15 knots. A chance of showers. Waves
building to 1 to 3 feet.
.FRIDAY...Southeast winds 10 to 20 knots veering south. Showers
likely. A chance of thunderstorms. A chance of showers. Waves
building to 2 to 4 feet.

$$

LSZ265-242200-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
953 AM EDT Mon Jun 24 2024

.REST OF TODAY...Southwest winds 5 to 15 knots becoming southeast
10 to 20 knots in the afternoon. Waves calm to 2 feet.
.TONIGHT...South winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
A chance of showers and thunderstorms after midnight. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TUESDAY...West winds 10 to 20 knots increasing to 15 to 25 knots
late. Waves subsiding to calm to 2 feet, then building to 2 to
4 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet.
.WEDNESDAY...North winds 10 to 20 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...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves calm to 2 feet.
.FRIDAY...Southeast winds 15 to 25 knots veering south. A chance
of showers. A chance of thunderstorms. Showers likely. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ266-242200-
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-
953 AM EDT Mon Jun 24 2024

.REST OF TODAY...South winds 5 to 15 knots becoming southeast
10 to 20 knots late. Waves calm to 2 feet.
.TONIGHT...South winds 15 to 25 knots. A chance of showers and
thunderstorms after midnight. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.
.TUESDAY...Southwest winds 10 to 20 knots becoming west 15 to
25 knots in the afternoon. A slight chance of showers and
thunderstorms through early afternoon. Waves building to 3 to
5 feet occasionally to 7 feet.
.TUESDAY NIGHT...Northwest winds 15 to 25 knots veering north
after midnight. Waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 2 to 4 feet.
.WEDNESDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots. Waves subsiding
to calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. A chance of showers. Waves building to 1 to 3 feet.
.FRIDAY...South winds 15 to 25 knots. A chance of showers. A
chance of thunderstorms. Showers likely. Waves building to 2 to
4 feet, then subsiding to 1 to 3 feet.

$$

LSZ267-242200-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
953 AM EDT Mon Jun 24 2024

.REST OF TODAY...Southwest winds 5 to 15 knots backing southeast
late. Waves calm to 2 feet.
.TONIGHT...South winds 10 to 20 knots increasing to 15 to
25 knots after midnight. A chance of showers and thunderstorms
after midnight. Waves building to 2 to 4 feet.
.TUESDAY...South winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then increasing to 15 to 25 knots
late. A chance of showers and thunderstorms through early
afternoon. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.TUESDAY NIGHT...West winds 10 to 20 knots veering northwest
after midnight. Waves 2 to 4 feet.
.WEDNESDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...West winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.
.FRIDAY...Southeast winds 15 to 25 knots veering south. A chance
of showers, then showers likely. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.

$$

LSZ261-242200-
MAFOR 2415/
Superior West 11300 11200 12310 11410 11510 11520 11620. A chance
of showers and thunderstorms tonight. Waves 2 feet or less this
afternoon and tonight. Waves 1 to 3 feet Tuesday morning.

Superior North Central 11500 12310 12420 11426 11520 11620. A
chance of thunderstorms overnight and Tuesday morning. Waves 1
foot or less this afternoon. Waves 1 to 3 feet building to 2 to 4
feet tonight. Waves 2 to 4 feet Tuesday morning.

Superior South Central 12310 11320 13420 12520. A chance of
showers and thunderstorms overnight and Tuesday morning. Waves 2
feet or less this afternoon. Waves 1 to 3 feet building to 2 to 4
feet tonight. Waves 1 to 3 feet Tuesday morning.

Superior East 12400 11310 11320 11420 12430 11520. A chance of
showers and thunderstorms overnight and Tuesday morning. Waves
around 1 foot this afternoon. Waves 1 to 3 feet building to 3 to
5 feet tonight. Waves 2 to 4 feet Tuesday morning.

$$

Thompson

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

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