507
AXUS43 KMQT 201501
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
1001 AM EST Thu Nov 20 2025

LSZ162-202100-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1001 AM EST Thu Nov 20 2025 /901 AM CST Thu Nov 20 2025/

.REST OF TODAY...Southwest winds 15 to 25 knots veering west. A
chance of rain showers late in the morning. Waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet.
.TONIGHT...West winds 15 to 25 knots diminishing to 10 to
20 knots late. Waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet.
.FRIDAY...Northwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. Waves subsiding to calm to 2 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots backing southwest
after midnight. Waves calm to 2 feet.
$$

LSZ263-202100-
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 AM EST Thu Nov 20 2025

.REST OF TODAY...Southwest winds 15 to 25 knots veering west. A
chance of rain showers. Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...West winds 10 to 20 knots increasing to 15 to 25 knots
by midnight. Waves subsiding to 3 to 5 feet occasionally to
7 feet, then building to 4 to 7 feet occasionally to 9 feet.
.FRIDAY...Northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. Waves subsiding to 1 to 3 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots becoming west less
than 10 knots after midnight. Waves subsiding to calm to 2 feet.
$$

LSZ264-202100-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1001 AM EST Thu Nov 20 2025

.REST OF TODAY...Southwest winds 15 to 25 knots veering west by
mid afternoon. Rain showers likely late in the morning, then a
chance of rain showers in the afternoon. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots becoming west 10 to
20 knots by midnight, then increasing to 15 to 25 knots late.
Waves subsiding to 3 to 5 feet occasionally to 7 feet, then
building to 4 to 7 feet occasionally to 9 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 10 to
20 knots. Waves subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots diminishing to less
than 10 knots after midnight. Waves subsiding to calm to 2 feet.
$$

LSZ265-202100-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1001 AM EST Thu Nov 20 2025

.REST OF TODAY...Southwest winds 15 to 25 knots increasing to
20 to 30 knots by late morning, then veering west by mid
afternoon. A chance of rain showers. Waves 1 to 3 feet building
to 2 to 4 feet.
.TONIGHT...West winds 20 to 30 knots. A slight chance of rain
showers in the evening. Waves building to 3 to 6 feet
occasionally to 8 feet.
.FRIDAY...Northwest winds 20 to 30 knots. Waves subsiding to 2 to
4 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
$$

LSZ266-202100-
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 AM EST Thu Nov 20 2025

.REST OF TODAY...Southwest winds 15 to 25 knots. Rain showers
likely late in the morning, then a chance of rain showers in the
afternoon. Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...West winds 15 to 25 knots increasing to 20 to 30 knots
by midnight, then diminishing to 15 to 25 knots late. A chance of
rain showers. Waves building to 4 to 7 feet occasionally to
9 feet.
.FRIDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. A chance of rain and snow showers.
Waves building to 5 to 9 feet occasionally to 11 feet.
.FRIDAY NIGHT...Northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. A slight chance of rain and snow
showers in the evening. Waves subsiding to 1 to 3 feet.
$$

LSZ267-202100-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1001 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 15 to 25 knots veering southwest by
mid afternoon. A chance of rain showers late in the morning, then
rain showers likely in the afternoon. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...West winds 15 to 25 knots increasing to 20 to 30 knots
late. A chance of rain showers. Waves building to 4 to 7 feet
occasionally to 9 feet.
.FRIDAY...West winds 20 to 30 knots veering northwest. A chance
of rain showers. A chance of snow showers in the afternoon. Waves
building to 5 to 9 feet occasionally to 11 feet.
.FRIDAY NIGHT...Northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. A slight chance of snow showers in
the evening. Waves subsiding to 1 to 3 feet.
$$