613
FZUS63 KMQT 261943
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
343 PM EDT Sun May 26 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 29.5 inch low over southern Wisconsin this afternoon
continues lifting northeast this evening, deepening to 29.4
inches as it tracks across northern Lower Michigan Monday morning
and then into Quebec by Tuesday morning. In its wake, a 30.3 inch
high pressure builds over the Northern Plains on Tuesday. This
high pressure parks over the Upper Great Lakes Wednesday and
stays put through Thursday. The high begins to slowly move
towards the rest of the Great Lakes region Friday as a 29.9 inch
low pressure lifts through the Northern Plains.

LSZ162-270345-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
343 PM EDT Sun May 26 2024 /243 PM CDT Sun May 26 2024/

.LATE THIS AFTERNOON...Northeast winds 10 to 20 knots. A slight
chance of showers. Waves calm to 2 feet.
.TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then backing north late. Patchy fog.
Waves building to 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
late. Patchy fog through early afternoon. A slight chance of
showers by mid afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots. A chance of
showers. Waves building to 1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots. A chance of showers. A
slight chance of thunderstorms by mid afternoon. Waves subsiding
to calm to 2 feet.
.TUESDAY NIGHT...North winds 5 to 15 knots. Waves calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots veering south by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots backing
northeast after midnight. Waves calm to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots veering southwest. A chance
of showers. Waves calm to 2 feet.

$$

LSZ263-270345-
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-
343 PM EDT Sun May 26 2024

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. A chance of
showers. Waves calm to 2 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming north 10 to
20 knots late. Patchy fog. A slight chance of rain showers. Waves
building to 1 to 3 feet.
.MONDAY...North winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing west late. Patchy fog
through early afternoon. A slight chance of showers through early
afternoon. Waves building to 2 to 4 feet, then subsiding to 1 to
3 feet.
.MONDAY NIGHT...West winds 5 to 15 knots veering northwest after
midnight. A slight chance of rain showers after midnight. Waves
1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots. A chance of showers.
Waves subsiding to calm to 2 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves building to 1 to 3 feet, then
subsiding to calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing southwest by mid
afternoon. Waves calm to 2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots. Waves calm to
2 feet.
.THURSDAY...South winds 5 to 15 knots. Waves calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots. A chance of showers. Waves
calm to 2 feet.

$$

LSZ264-270345-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
343 PM EDT Sun May 26 2024

.LATE THIS AFTERNOON...Northeast winds 5 to 15 knots. Patchy fog.
A chance of showers. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots becoming northeast 10 to
20 knots after midnight. Patchy fog. A chance of showers. Waves
building to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots backing northwest late.
Patchy fog through early afternoon. A chance of showers. Waves
2 to 4 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots. A slight chance
of showers. Waves 2 to 4 feet.
.TUESDAY...Northwest winds 10 to 20 knots. A slight chance of
showers. Waves 2 to 4 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to 1 to 3 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. Waves calm to 2 feet.
.FRIDAY...South winds 5 to 15 knots. Waves calm to 2 feet.

$$

LSZ265-270345-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
343 PM EDT Sun May 26 2024

.LATE THIS AFTERNOON...East winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet.
.TONIGHT...Northeast winds 10 to 20 knots increasing to 15 to
25 knots after midnight. A chance of showers through midnight,
then showers likely after midnight. Waves building to 2 to
4 feet.
.MONDAY...North winds 15 to 25 knots backing northwest late.
Patchy fog. A chance of showers. Waves building to 3 to 6 feet
occasionally to 8 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots. A slight chance
of showers. Waves subsiding to 1 to 3 feet.
.TUESDAY...Northwest winds 15 to 25 knots. A chance of showers.
Waves 1 to 3 feet.
.TUESDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Waves 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...East winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots veering south. A chance
of showers. Waves calm to 2 feet.

$$

LSZ266-270345-
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-
343 PM EDT Sun May 26 2024

.LATE THIS AFTERNOON...East winds 10 to 20 knots. A chance of
showers. Waves calm to 2 feet building to 1 to 3 feet.
.TONIGHT...Northeast winds 10 to 20 knots increasing to 15 to
25 knots after midnight. A chance of showers through midnight,
then showers likely and a slight chance of thunderstorms after
midnight. Waves building to 3 to 5 feet occasionally to 7 feet.
.MONDAY...North winds 20 to 30 knots backing northwest late.
Patchy fog. Showers likely through early afternoon. A chance of
showers by mid afternoon. Waves building to 3 to 6 feet
occasionally to 8 feet.
.MONDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. A chance of showers. Waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 15 to 25 knots. A chance of showers.
Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Waves 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...Northwest winds 5 to 15 knots backing south. Waves
calm to 2 feet.
.FRIDAY...South winds 10 to 20 knots. Waves calm to 2 feet.

$$

LSZ267-270345-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
343 PM EDT Sun May 26 2024

.LATE THIS AFTERNOON...East winds 15 to 25 knots. A slight chance
of showers. Waves calm to 2 feet building to 1 to 3 feet.
.TONIGHT...East winds 15 to 25 knots backing northeast after
midnight. A chance of showers through midnight, then showers and
a slight chance of thunderstorms after midnight. Waves building
to 3 to 5 feet occasionally to 7 feet.
.MONDAY...Northeast winds 15 to 25 knots backing north in the
afternoon, then becoming northwest 20 to 30 knots late. Patchy
fog. Showers. Waves building to 3 to 6 feet occasionally to
8 feet.
.MONDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots late. Patchy fog through midnight. Showers likely
through midnight, then a chance of showers after midnight. Waves
building to 4 to 7 feet occasionally to 9 feet.
.TUESDAY...Northwest winds 15 to 25 knots. A chance of showers.
Waves subsiding to 3 to 5 feet occasionally to 7 feet.
.TUESDAY NIGHT...North winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. Waves 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 10 to 20 knots diminishing to
5 to 15 knots after midnight. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots backing south. Waves
calm to 2 feet.
.FRIDAY...Southeast winds 10 to 20 knots veering south. Waves
calm to 2 feet.

$$

LSZ261-270345-
MAFOR 2621/
Superior West 13110 11120 11810 12710 11610. A chance of showers
early this evening. Waves 1 to 3 feet.

Superior North Central 11110 11210 11110 12120 11830 11820 11720.
A chance of showers tonight and Monday morning. Waves 1 to 3 feet
tonight. Waves 2 to 4 feet Monday.

Superior South Central 11210 11110 11120 11126 11136 11836 11830
11730. Waves 2 to 4 feet tonight. Waves 3 to 6 feet Monday.

Superior East 12220 11120 11126 12136 12836. Waves 2 to 4 feet
tonight. Waves 3 to 6 feet Monday.

$$

TAP

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

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