253
AXUS43 KMQT 022001
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
401 PM EDT Tue Sep 2 2025

LSZ162-030800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Tue Sep 2 2025 /301 PM CDT Tue Sep 2 2025/

.LATE THIS AFTERNOON...Southwest winds 10 to 20 knots. A chance
of showers and thunderstorms. Waves calm to 2 feet.
.TONIGHT...West winds 10 to 20 knots becoming northwest 15 to
25 knots after midnight, then increasing to 20 to 30 knots late.
Showers likely and a chance of thunderstorms through midnight,
then a slight chance of showers after midnight. Waves building to
3 to 6 feet occasionally to 8 feet.
.WEDNESDAY...North winds 20 to 30 knots backing northwest in the
afternoon. A chance of showers. A slight chance of thunderstorms
by mid afternoon. A slight chance of waterspouts by mid
afternoon. Waves 3 to 6 feet occasionally to 8 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. A slight chance of waterspouts. A
chance of showers. Waves subsiding to 3 to 6 feet occasionally to
8 feet.
.THURSDAY...West winds 15 to 25 knots. A slight chance of
waterspouts through early afternoon. A chance of showers. Waves
subsiding to 2 to 4 feet.
$$

LSZ263-030800-
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-
401 PM EDT Tue Sep 2 2025

.LATE THIS AFTERNOON...Southwest winds 10 to 20 knots. A chance
of showers and thunderstorms. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 20 knots becoming west 15 to
25 knots after midnight, then becoming northwest 20 to 30 knots
late. Showers likely through midnight. A chance of thunderstorms.
A chance of showers after midnight. Waves building to 4 to 7 feet
occasionally to 9 feet.
.WEDNESDAY...North winds 20 to 30 knots backing northwest in the
afternoon, then diminishing to 15 to 25 knots late. A chance of
showers. A slight chance of waterspouts by mid afternoon. Waves
building to 4 to 8 feet occasionally to 10 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. A slight chance of waterspouts. A
slight chance of thunderstorms through midnight. A chance of rain
showers. Waves building to 4 to 8 feet occasionally to 10 feet.
.THURSDAY...West winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. A slight chance of waterspouts through
early afternoon. A chance of rain showers. Waves subsiding to
3 to 6 feet occasionally to 8 feet.
$$

LSZ264-030800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EDT Tue Sep 2 2025

.LATE THIS AFTERNOON...South winds 5 to 15 knots. A chance of
showers and a slight chance of thunderstorms. Waves 1 to 3 feet
subsiding to calm to 2 feet.
.TONIGHT...South winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight, then becoming northwest to 30 knots with
a few gale force gusts to 35 knots possible late. Showers likely
and a chance of thunderstorms. Waves building to 6 to 9 feet
occasionally to 11 feet.
.WEDNESDAY...North winds 20 to 30 knots backing northwest in the
afternoon. A chance of showers through early afternoon, then
showers likely by mid afternoon. A slight chance of waterspouts
by mid afternoon. Waves building to 7 to 10 feet occasionally to
13 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. A slight chance of waterspouts.
Showers likely and a slight chance of thunderstorms. Waves
subsiding to 5 to 8 feet occasionally to 10 feet.
.THURSDAY...West winds 15 to 25 knots. A slight chance of
waterspouts through early afternoon. A chance of showers. Waves
subsiding to 3 to 6 feet occasionally to 8 feet.
$$

LSZ265-030800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EDT Tue Sep 2 2025

.LATE THIS AFTERNOON...Southeast winds 10 to 20 knots. A slight
chance of showers and thunderstorms. Waves calm to 2 feet.
.TONIGHT...Southwest winds 10 to 20 knots becoming west 15 to
25 knots late. Showers likely and a chance of thunderstorms.
Waves building to 3 to 5 feet occasionally to 7 feet.
.WEDNESDAY...Northwest winds to 30 knots with a few gale force
gusts to 35 knots possible. A slight chance of thunderstorms
through early afternoon. Showers likely. A slight chance of
waterspouts by mid afternoon. Waves building to 5 to 8 feet
occasionally to 10 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots. A slight
chance of waterspouts. Showers likely and a slight chance of
thunderstorms. Waves subsiding to 4 to 7 feet occasionally to
9 feet.
.THURSDAY...West winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. A slight chance of waterspouts through
early afternoon. Showers likely through early afternoon, then a
slight chance of showers by mid afternoon. Waves subsiding to
2 to 4 feet.
$$

LSZ266-030800-
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-
401 PM EDT Tue Sep 2 2025

.LATE THIS AFTERNOON...South winds 10 to 20 knots. A slight
chance of showers. Waves calm to 2 feet.
.TONIGHT...South winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering southwest late. A chance of
showers through midnight. A chance of thunderstorms. Showers
likely after midnight. Waves building to 5 to 8 feet occasionally
to 10 feet.
.WEDNESDAY...Northwest winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible in the
afternoon. A chance of showers and a slight chance of
thunderstorms through early afternoon, then showers likely by mid
afternoon. Waves building to 8 to 11 feet occasionally to
14 feet.
.WEDNESDAY NIGHT...Northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
after midnight, then backing west late. A slight chance of
waterspouts. Showers likely and a slight chance of thunderstorms.
Waves subsiding to 6 to 9 feet occasionally to 11 feet.
.THURSDAY...West winds 20 to 30 knots. A slight chance of
waterspouts through early afternoon. Showers likely through early
afternoon, then a chance of showers by mid afternoon. Waves
subsiding to 4 to 7 feet occasionally to 9 feet.
$$

LSZ267-030800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EDT Tue Sep 2 2025

.LATE THIS AFTERNOON...Southeast winds 10 to 20 knots. Waves calm
to 2 feet.
.TONIGHT...South winds 15 to 25 knots. A chance of showers and
thunderstorms after midnight. Waves building to 3 to 5 feet
occasionally to 7 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon, then veering northwest late. Showers
and a chance of thunderstorms through early afternoon, then a
chance of showers by mid afternoon. Waves building to 7 to
10 feet occasionally to 13 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 30 knots backing west
after midnight. A chance of showers through midnight. A slight
chance of thunderstorms. Showers likely after midnight. A slight
chance of waterspouts after midnight. Waves subsiding to 6 to
9 feet occasionally to 11 feet.
.THURSDAY...West winds 20 to 30 knots. A slight chance of
waterspouts through early afternoon. Showers likely through early
afternoon, then a chance of showers and a slight chance of
thunderstorms by mid afternoon. Waves subsiding to 4 to 7 feet
occasionally to 9 feet.
$$