750
AXUS43 KMQT 220202
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
1001 PM EDT Thu Aug 21 2025

LSZ162-220800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
1001 PM EDT Thu Aug 21 2025 /901 PM CDT Thu Aug 21 2025/

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering west
after midnight, then backing southwest late. A chance of showers
and thunderstorms. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots backing southwest late. A
chance of showers and a slight chance of thunderstorms. Waves
calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight. Waves building to 2 to 4 feet.
.SATURDAY...West winds 20 to 30 knots. A slight chance of showers
by mid afternoon. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet.
$$

LSZ263-220800-
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 PM EDT Thu Aug 21 2025

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering south
after midnight, then becoming southwest 10 to 20 knots late. A
slight chance of showers and thunderstorms. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots backing southwest late. A
chance of showers and a slight chance of thunderstorms. Waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots veering west after
midnight, then increasing to 15 to 25 knots late. Waves building
to 3 to 5 feet occasionally to 7 feet.
.SATURDAY...West winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. A slight chance of showers by mid
afternoon. Waves building to 4 to 7 feet occasionally to 9 feet.
$$

LSZ264-220800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
1001 PM EDT Thu Aug 21 2025

.REST OF TONIGHT...South winds 5 to 15 knots becoming southwest
10 to 20 knots late. A slight chance of showers and
thunderstorms. Waves calm to 2 feet.
.FRIDAY...West winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then backing southwest late. Patchy fog by mid
afternoon. A chance of showers and a slight chance of
thunderstorms by mid afternoon. Waves building to 1 to 3 feet,
then subsiding to calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then becoming west 15 to 25 knots late.
A slight chance of showers through midnight. Waves building to
2 to 4 feet.
.SATURDAY...West winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. Waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet.
$$

LSZ265-220800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
1001 PM EDT Thu Aug 21 2025

.REST OF TONIGHT...Southeast winds 10 to 20 knots becoming south
5 to 15 knots after midnight, then becoming southwest 10 to
20 knots late. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots veering west in the
afternoon. A chance of showers and thunderstorms by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots becoming west
15 to 25 knots late. A slight chance of showers and thunderstorms
through midnight. Waves building to 1 to 3 feet.
.SATURDAY...West winds 20 to 30 knots. Waves building to 3 to
5 feet occasionally to 7 feet.
$$

LSZ266-220800-
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 PM EDT Thu Aug 21 2025

.REST OF TONIGHT...Southeast winds 10 to 20 knots veering
southwest late. Patchy fog by midnight. A slight chance of
showers and thunderstorms after midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots veering west late. A
chance of showers and a slight chance of thunderstorms by mid
afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. A chance of
showers and thunderstorms. Waves building to 2 to 4 feet.
.SATURDAY...West winds 15 to 25 knots. Waves building to 3 to
6 feet occasionally to 8 feet.
$$

LSZ267-220800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
1001 PM EDT Thu Aug 21 2025

.REST OF TONIGHT...Southeast winds 5 to 15 knots veering south
after midnight, then increasing to 10 to 20 knots late. Patchy
fog by midnight. Waves calm to 2 feet.
.FRIDAY...Southwest winds 10 to 20 knots diminishing to 5 to
15 knots late. A chance of showers and a slight chance of
thunderstorms by mid afternoon. Waves calm to 2 feet.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. Showers likely
through midnight. A chance of thunderstorms. A chance of showers
after midnight. Waves calm to 2 feet.
.SATURDAY...West winds 15 to 25 knots. A slight chance of showers
through early afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.
$$