978
FZUS63 KMQT 030149
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
949 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...As the weak 30.0 inch ridge over the Upper Great Lakes
shifts east 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.

LSZ162-031000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
949 PM EDT Sun Jun 2 2024 /849 PM CDT Sun Jun 2 2024/

.REST OF TONIGHT...East winds 10 to 20 knots veering southeast
after midnight. A chance of showers by late evening. A chance of
thunderstorms. Showers likely after midnight. Waves calm to
2 feet 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.

$$

LSZ263-031000-
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-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...Southeast winds 10 to 20 knots veering south
late. A chance of showers and a slight chance of thunderstorms
after midnight. Waves calm to 2 feet 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.

$$

LSZ264-031000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...Southeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. A chance of showers after
midnight. Waves calm to 2 feet 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.

$$

LSZ265-031000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...Southeast winds 10 to 20 knots. A slight
chance of showers after midnight. Waves calm to 2 feet 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.

$$

LSZ266-031000-
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-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...East winds 5 to 15 knots becoming south 10 to
20 knots late. Waves calm to 2 feet 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.

$$

LSZ267-031000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
949 PM EDT Sun Jun 2 2024

.REST OF TONIGHT...East winds 5 to 15 knots becoming southeast 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.

$$
LSZ261-031000-
MAFOR 0303/
Superior West 12320 11426 11316 11310 12300 11200. A chance of
thunderstorms Monday morning. Waves 1 to 4 feet.

Superior North Central 12320 11330 11320 12326 11320 11310. Waves
1 to 4 feet overnight. Waves 2 to 5 feet Monday and Monday
evening.

Superior South Central 11310 11320 11420 12320 12326 11310. Waves
1 to 3 feet.

Superior East 13310 19314 11310 12320 11310 11320. A chance of
showers Monday afternoon and Monday evening. Waves 1 to 4 feet.

$$

Jablonski

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

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weather.gov/greatlakes