208
FZUS63 KMQT 021956
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
356 PM EDT Sun Jun 2 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 30.0 inch high pressure ridge maintains over
much of Lake Superior into this evening. As this ridge shifts to
Quebec and the Lower Great Lakes tonight, a 29.6 inch trough will
sweep across the Northern Plains to Minnesota. On Monday, this
trough will dissipate before reaching Lake Superior, leaving Lake
Superior between 30.0 inch ridging over Quebec into the Lower
Great Lakes and a new trough of 29.4 inches emerging over the
western Dakotas. On Tuesday, 29.2 inch low pressure tracking
across the Canadian Prairies will power the trough eastward to the
Upper Mississippi Valley. The trough will then sail across Lake
Superior Tuesday night and Wednesday morning while the parent low
pressure tracks from the Canadian Prairies toward northern
Ontario. On Thursday, the low, weakening to 29.3 inches, will
slowly drift southeast across northern Ontario while a 30.0 inch
high pressure ridge builds southeast into the Central Plains. The
ridge looks to overtake much of the Mississippi River Valley by
Friday evening while the low over northern Ontario weakens to 29.5
inches.

LSZ162-030400-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
356 PM EDT Sun Jun 2 2024 /256 PM CDT Sun Jun 2 2024/

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 10 to 20 knots veering southeast after
midnight. A chance of showers through midnight. A chance of
thunderstorms. Showers likely after midnight. Waves building to
2 to 4 feet.
.MONDAY...Southeast winds 10 to 20 knots backing east in the
afternoon. Patchy fog. A chance of showers and thunderstorms.
Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots backing northeast after
midnight. Areas of fog. A slight chance of showers after
midnight. Waves calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots becoming northeast 15 to
25 knots by mid afternoon. Patchy fog. A chance of showers. A
chance of thunderstorms by mid afternoon. Waves building to 1 to 3
feet.
.TUESDAY NIGHT...East winds 10 to 20 knots veering west after
midnight. Showers through midnight. A chance of thunderstorms. A
chance of showers after midnight. Waves subsiding to calm to
2 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots. A chance of showers.
Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 15 to 25 knots. A chance of
showers. Waves subsiding to 1 to 3 feet, then building to 2 to
4 feet.
.THURSDAY...West winds 20 to 30 knots diminishing to 15 to
25 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.FRIDAY...West winds 15 to 25 knots becoming northwest 10 to
20 knots. Waves subsiding to calm to 2 feet.

$$

LSZ263-030400-
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-
356 PM EDT Sun Jun 2 2024

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to
2 feet.
.TONIGHT...East winds 10 to 20 knots veering south late. A chance
of showers and a slight chance of thunderstorms after midnight.
Waves building to 2 to 4 feet.
.MONDAY...Southeast winds 10 to 20 knots diminishing to 5 to
15 knots late. Patchy fog. Showers likely through early
afternoon. A slight chance of thunderstorms. A chance of showers
by mid afternoon. Waves subsiding to 1 to 3 feet, then building
to 2 to 4 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots backing east after
midnight. A slight chance of showers and thunderstorms through
midnight. Areas of fog. Waves subsiding to calm to 2 feet.
.TUESDAY...East winds 5 to 15 knots. Patchy fog. A chance of
showers and a slight chance of thunderstorms by mid afternoon.
Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Southeast winds 5 to 15 knots veering southwest
after midnight. Showers and a chance of thunderstorms. Waves
building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves building to 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots increasing to 10 to
20 knots after midnight. Waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet.
.THURSDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots veering northwest. Waves
subsiding to 1 to 3 feet.

$$

LSZ264-030400-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
356 PM EDT Sun Jun 2 2024

.LATE THIS AFTERNOON...Southeast winds 5 to 15 knots. Waves calm
to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight. A chance of showers after midnight.
Waves building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...Southeast winds 10 to 20 knots. Patchy fog. Showers
likely and a slight chance of thunderstorms. Waves subsiding to
2 to 4 feet.
.MONDAY NIGHT...Southeast winds 5 to 15 knots. A slight chance of
showers and thunderstorms through midnight. Patchy fog. Waves
subsiding to calm to 2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. Patchy fog. A slight chance of showers
and thunderstorms by mid afternoon. Waves building to 1 to
3 feet.
.TUESDAY NIGHT...Southeast winds 10 to 20 knots veering south
after midnight. Showers and a chance of thunderstorms. Waves
building to 2 to 4 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight. Waves subsiding to 1 to 3 feet,
then building to 2 to 4 feet.
.THURSDAY...West winds 15 to 25 knots diminishing to 10 to
20 knots. Waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots becoming northwest 5 to
15 knots. Waves subsiding to 1 to 3 feet.

$$

LSZ265-030400-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
356 PM EDT Sun Jun 2 2024

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Waves calm to 2
feet.
.TONIGHT...Southeast winds 10 to 20 knots. A slight chance of
showers after midnight. Waves building to 1 to 3 feet.
.MONDAY...Southeast winds 10 to 20 knots. A chance of showers
through early afternoon. A slight chance of thunderstorms.
Showers likely by mid afternoon. Waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. A slight chance of showers and
thunderstorms through midnight. Waves subsiding to calm to
2 feet.
.TUESDAY...Southeast winds 5 to 15 knots increasing to 15 to
25 knots by mid afternoon. A slight chance of showers and
thunderstorms 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, then subsiding to calm to 2 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. A chance of showers.
Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 20 knots veering west
after midnight. A chance of showers. Waves calm to 2 feet.
.THURSDAY...West winds 15 to 25 knots. A chance of showers. Waves
calm to 2 feet.
.FRIDAY...West winds 15 to 25 knots. Waves calm to 2 feet.

$$

LSZ266-030400-
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-
356 PM EDT Sun Jun 2 2024

.LATE THIS AFTERNOON...East winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots becoming south 10 to
20 knots late. Patchy fog. Waves building to 2 to 4 feet.
.MONDAY...Southeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. A slight chance of showers through early afternoon, then
showers likely and a slight chance of thunderstorms by mid
afternoon. Waves 2 to 4 feet.
.MONDAY NIGHT...Southeast winds 10 to 20 knots diminishing to
5 to 15 knots late. A slight chance of thunderstorms through
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. A slight chance of showers and
thunderstorms by mid afternoon. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. A chance of showers through
midnight. Showers likely after midnight. Waves building to 2 to
4 feet.
.WEDNESDAY...Southwest winds 10 to 20 knots. Showers likely
through early afternoon. A chance of showers by mid afternoon.
Waves subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 20 knots veering west after
midnight. A chance of showers. Waves 1 to 3 feet.
.THURSDAY...West winds 15 to 25 knots. A chance of showers. Waves
building to 2 to 4 feet.
.FRIDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots. A chance of showers. Waves subsiding to 1 to 3 feet.

$$

LSZ267-030400-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
356 PM EDT Sun Jun 2 2024

.LATE THIS AFTERNOON...North winds 5 to 15 knots. Patchy fog.
Waves calm to 2 feet.
.TONIGHT...Southeast winds 5 to 15 knots increasing to 10 to
20 knots late. Patchy fog. Waves calm to 2 feet.
.MONDAY...Southeast winds 10 to 20 knots. A chance of showers by
mid afternoon. Waves building to 2 to 4 feet, then subsiding 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. A slight chance of
showers. Waves building to 1 to 3 feet.
.TUESDAY NIGHT...Southeast winds 15 to 25 knots. A chance of
showers through midnight. Showers likely after midnight. Waves
building to 2 to 4 feet.
.WEDNESDAY...South winds 10 to 20 knots veering southwest by mid
afternoon. Showers. 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. A chance of showers. Waves
building to 2 to 4 feet.
.FRIDAY...West winds 10 to 20 knots veering northwest. A chance
of showers. Waves subsiding to 1 to 3 feet.

$$

LSZ261-030400-
MAFOR 0221/
Superior West 11210 11220 12320 11426 11316 11310 11300. A chance
of thunderstorms Monday morning. Waves 1 to 4 feet.

Superior North Central 12310 12320 11330 11320 12326. Waves 2
feet or less building to 2 to 5 feet tonight and Monday.

Superior South Central 11210 19214 11310 19314 11310 11320 11420
12320 11326. Waves 1 to 3 feet.

Superior East 11800 19804 11200 19204 13310 19314 11310 12320. A
chance of showers Monday afternoon. Waves 2 feet or less tonight.
Waves 2 to 4 feet Monday.

$$

Jablonski

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

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