858
FZUS63 KMQT 261404
GLFLS

Open Lake Forecast for Lake Superior
National Weather Service Marquette MI
1004 AM 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 weak high pressure at 29.9 inches shifts east today
as a low pressure at 29.5 inches lifts northeast over southern
Wisconsin by this evening. This low deepens to 29.3 inches as it
tracks northeast across northern Lower Michigan Monday morning and
then into Quebec by Tuesday morning. In its wake, a 30.2 inch
high pressure builds over the Northern Plains on Tuesday. This
high pressure parks over the Upper Great Lakes and builds to 30.3
inches by Wednesday, with the high staying put through Thursday.

LSZ162-262215-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1004 AM EDT Sun May 26 2024 /904 AM CDT Sun May 26 2024/

.REST OF TODAY...East winds 5 to 15 knots becoming northeast
10 to 20 knots in the afternoon. A slight chance of showers by
mid afternoon. Waves calm to 2 feet.
.TONIGHT...Northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then backing north late. Waves calm to
2 feet.
.MONDAY...West winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves 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 15 to 25 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 calm to 2 feet.
.WEDNESDAY...South winds 5 to 15 knots backing east. Waves calm
to 2 feet.
.THURSDAY...East winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ263-262215-
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-
1004 AM EDT Sun May 26 2024

.REST OF TODAY...East winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon. A slight chance of rain showers
by mid afternoon. Waves calm to 2 feet.
.TONIGHT...Northeast winds 5 to 15 knots backing north late. A
slight chance of rain showers. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.MONDAY...North winds 5 to 15 knots backing west late. A slight
chance of rain showers through early afternoon. Waves 1 to
3 feet.
.MONDAY NIGHT...Northwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight. A chance of showers. Waves 1 to 3 feet.
.TUESDAY...Northwest winds 10 to 20 knots. A chance of showers.
Waves 1 to 3 feet.
.TUESDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
.WEDNESDAY...North winds 5 to 15 knots backing west. Waves calm
to 2 feet.
.THURSDAY...East winds 5 to 15 knots veering south. Waves calm to
2 feet.

$$

LSZ264-262215-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1004 AM EDT Sun May 26 2024

.REST OF TODAY...Southeast winds less than 10 knots becoming east
5 to 15 knots in the afternoon. A slight chance of rain showers
by mid afternoon. Waves calm to 2 feet.
.TONIGHT...East winds 5 to 15 knots backing northeast after
midnight, then increasing to 10 to 20 knots late. A chance of
rain showers. Waves building to 2 to 4 feet.
.MONDAY...North winds 10 to 20 knots backing northwest late. A
slight chance of showers. Waves 2 to 4 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots. A chance of
showers. Waves 2 to 4 feet.
.TUESDAY...Northwest winds 10 to 20 knots. A 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. Waves
subsiding to calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots veering south. Waves
calm to 2 feet.

$$

LSZ265-262215-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1004 AM EDT Sun May 26 2024

.REST OF TODAY...Southeast winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon, then backing east late. A slight
chance of showers by mid afternoon. Waves calm to 2 feet.
.TONIGHT...Northeast winds 10 to 20 knots increasing to 15 to
25 knots late. A chance of showers. Waves building to 3 to 5 feet
occasionally to 7 feet.
.MONDAY...North winds 15 to 25 knots backing northwest late. A
chance of showers. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots. A 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...Northwest winds 10 to 20 knots veering north
after midnight. Waves 1 to 3 feet.
.WEDNESDAY...North winds 10 to 20 knots becoming west 5 to
15 knots. Waves subsiding to calm to 2 feet.
.THURSDAY...Southeast winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ266-262215-
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-
1004 AM EDT Sun May 26 2024

.REST OF TODAY...South winds 10 to 20 knots backing east late. A
slight chance of showers by mid afternoon. 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 3 to 6 feet
occasionally to 8 feet.
.MONDAY...North winds 20 to 30 knots backing northwest late.
Showers likely through early afternoon, then a chance of showers
by mid afternoon. Waves subsiding to 3 to 5 feet occasionally to
7 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots. A chance of
showers. Waves building to 3 to 6 feet occasionally to 8 feet.
.TUESDAY...Northwest winds 15 to 25 knots. A chance of showers.
Waves 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...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.THURSDAY...South winds 5 to 15 knots increasing to 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ267-262215-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1004 AM EDT Sun May 26 2024

.REST OF TODAY...South winds 10 to 20 knots backing east late.
Waves calm to 2 feet building to 1 to 3 feet.
.TONIGHT...East winds 10 to 20 knots becoming northeast 15 to
25 knots after midnight. A slight chance of showers through
midnight, then showers after midnight. Waves building to 3 to
5 feet occasionally to 7 feet.
.MONDAY...Northeast winds 20 to 30 knots backing northwest late.
Showers likely. Waves building to 3 to 6 feet occasionally to
8 feet.
.MONDAY NIGHT...Northwest winds 20 to 30 knots. A chance of
showers. Waves building 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...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots. Waves subsiding to calm to 2 feet.
.THURSDAY...Northwest winds 5 to 15 knots becoming south 10 to
20 knots. Waves calm to 2 feet.

$$

LSZ261-262215-
MAFOR 2615/
Superior West 11100 14110 11110 11810 11710. A chance of showers
this evening. Waves 1 to 3 feet.

Superior North Central 11300 13210 11110 12120 11820. A chance of
showers tonight. Waves 1 to 3 feet this afternoon and tonight.
Waves 2 to 4 feet Monday morning.

Superior South Central 12310 11210 11110 11120 11126 11136 11836.
Waves 1 to 2 feet this afternoon. Waves 2 to 5 feet tonight.
Waves 3 to 5 feet Monday morning.

Superior East 12310 12220 11120 12136 11146. Waves 1 to 2 feet
this afternoon. Waves 2 to 5 feet tonight. Waves 3 to 6 feet
Monday morning.

$$

EK

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

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