097
FZUS63 KMQT 020201
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1001 PM EDT Sat Jun 1 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 trough over western Lake Superior
this evening dissipates tonight as it continues east across the
lake. On Sunday, weak 30.0 inch ridging develops across the
western Great Lakes. As this ridge shifts east toward the Lower
Great Lakes Sunday night, a 29.6 inch trough moves northeast from
the the northern Plains toward Minnesota and northern Ontario.
This trough weakens on Monday as it continues northeast through
northern Ontario, leaving Lake Superior between weak high at 30.0
inches over Quebec and a 29.7 inch trough over Minnesota. On
Tuesday, a 29.2 inch low pressure tracking across the Canadian
Prairies will push the trough eastward to the Upper Mississippi
Valley. The trough deepens to 29.4 inches by Wednesday morning
over Lake Superior while the parent low tracks into Manitoba.
These low pressure features then look to slow down for Wednesday
and Thursday as they meander eastward through northern Ontario and
the Upper Great Lakes.


LSZ162-021015-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1001 PM EDT Sat Jun 1 2024 /901 PM CDT Sat Jun 1 2024/

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT /7 AM CDT/
SUNDAY...

.REST OF TONIGHT...Southwest winds 5 to 15 knots veering west
after midnight. Areas of dense fog. Waves calm to 2 feet.
.SUNDAY...Southwest winds 5 to 15 knots backing south in the
afternoon, then backing east late. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 10 to 20 knots. A chance of showers. A
slight chance of thunderstorms after midnight. Waves building to
1 to 3 feet.
.MONDAY...East winds 10 to 20 knots. Showers through early
afternoon. A slight chance of thunderstorms. A chance of showers
by mid afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. A chance of showers by mid afternoon.
Waves calm to 2 feet.
.TUESDAY NIGHT...East winds 10 to 20 knots veering southwest
after midnight. Showers through midnight. A chance of
thunderstorms. A chance of showers after midnight. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots veering west. A
chance of showers. Waves building to 2 to 4 feet.
.THURSDAY...West winds 20 to 30 knots diminishing to 15 to
25 knots. A chance of showers. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.

$$

LSZ263-021015-
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-
1001 PM EDT Sat Jun 1 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT SUNDAY...

.REST OF TONIGHT...Southwest winds 5 to 15 knots becoming west
less than 10 knots late. Areas of dense fog. Waves calm to 2
feet.
.SUNDAY...Southwest winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then backing east late. Waves calm to
2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots veering southeast after
midnight. A slight chance of showers and thunderstorms after
midnight. Waves building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 20 knots. Showers and a chance of
thunderstorms. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. A chance of showers by mid
afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering southwest
after midnight. Showers and a chance of thunderstorms. Waves
building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots veering west. A
chance of showers. Waves building to 2 to 4 feet.
.THURSDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of showers. Waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet.

$$

LSZ264-021015-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1001 PM EDT Sat Jun 1 2024

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM EDT SUNDAY...

.REST OF TONIGHT...Southwest winds 5 to 15 knots becoming west
less than 10 knots late. A chance of rain showers by late
evening. Areas of dense fog. Waves calm to 2 feet.
.SUNDAY...Southwest winds less than 10 knots becoming south 5 to
15 knots in the afternoon, then backing southeast late. Waves
calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. Waves building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 20 knots. Showers. A slight
chance of thunderstorms by mid afternoon. Waves building to 2 to
4 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering south
after midnight. Showers likely and a chance of thunderstorms.
Waves building to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots veering west. A
chance of thunderstorms. A chance of showers. Waves building to
2 to 4 feet.
.THURSDAY...West winds 15 to 25 knots becoming northwest 10 to
20 knots. Waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet.

$$

LSZ265-021015-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1001 PM EDT Sat Jun 1 2024

.REST OF TONIGHT...South winds 5 to 15 knots veering west late.
Patchy fog. Waves calm to 2 feet.
.SUNDAY...West winds 5 to 15 knots backing east in the afternoon.
Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves calm to 2 feet.
.MONDAY...Southeast winds 15 to 25 knots. A chance of showers
through early afternoon, then showers likely and a slight chance
of thunderstorms by mid afternoon. Waves building to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. A chance of showers and
thunderstorms through midnight. Waves subsiding to calm to
2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A chance of showers through midnight. A chance of
thunderstorms. Showers likely after midnight. Waves calm to
2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots veering west. A
chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 15 to 25 knots. A chance of showers. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.

$$

LSZ266-021015-
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-
1001 PM EDT Sat Jun 1 2024

.REST OF TONIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering southwest late. A slight
chance of rain showers by late evening. Patchy fog. Waves calm to
2 feet.
.SUNDAY...West winds 5 to 15 knots veering north in the
afternoon, then veering east late. Waves calm to 2 feet.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. Waves building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. A chance of showers through early
afternoon, then showers likely and a slight chance of
thunderstorms by mid afternoon. Waves building to 2 to 4 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight. A chance of showers. Waves
subsiding to calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. A chance of showers through midnight. A chance of
thunderstorms. Showers likely after midnight. Waves building to
1 to 3 feet.
.WEDNESDAY...South winds 10 to 20 knots veering southwest. A
chance of showers. Waves building to 2 to 4 feet.
.THURSDAY...West winds 15 to 25 knots veering northwest. A chance
of showers. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.

$$

LSZ267-021015-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1001 PM EDT Sat Jun 1 2024

.REST OF TONIGHT...South winds 10 to 20 knots diminishing to 5 to
15 knots late. A chance of showers by late evening. Patchy fog
after midnight. Waves calm to 2 feet.
.SUNDAY...South winds 5 to 15 knots backing north in the
afternoon. Waves calm to 2 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots veering southeast after
midnight, then increasing to 10 to 20 knots late. Waves calm to
2 feet.
.MONDAY...Southeast winds 10 to 20 knots. A chance of showers by
mid afternoon. Waves building to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots. A chance of
showers. Waves subsiding to calm to 2 feet.
.TUESDAY...Southeast winds 10 to 20 knots. Waves calm to 2 feet.
.TUESDAY NIGHT...Southeast winds 10 to 20 knots. A chance of
showers. Waves building to 1 to 3 feet.
.WEDNESDAY...South winds 10 to 20 knots veering southwest.
Showers likely. A chance of showers. Waves subsiding to calm to
2 feet.
.THURSDAY...West winds 10 to 20 knots. A chance of showers. Waves
building to 2 to 4 feet.

$$
LSZ261-021015-
MAFOR 0203/
Superior West 11500 19504 12600 11500 11400 11200 12210. Waves 2
feet or less.

Superior North Central 12500 19504 11604 11500 11400 11300 12310.
Waves 1 foot or less.

Superior South Central 11400 11500 11604 11700 11100 11200 11210
11310. Waves 1 foot or less.

Superior East 11410 11510 11400 11500 11600 11800 11100 11200.
Waves 2 feet or less.

$$

Jablonski

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

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