498
AXUS43 KMQT 242002
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
401 PM EDT Sun Aug 24 2025

LSZ162-250800-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 PM EDT Sun Aug 24 2025 /301 PM CDT Sun Aug 24 2025/

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. Sprinkles.
Waves 3 to 5 feet occasionally to 7 feet subsiding to 2 to
4 feet.
.TONIGHT...Northwest winds 15 to 25 knots. Waves subsiding to
1 to 3 feet, then building to 2 to 4 feet.
.MONDAY...Northwest winds 10 to 20 knots backing west late. Waves
subsiding to calm to 2 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
$$

LSZ263-250800-
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 Sun Aug 24 2025

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. A slight
chance of waterspouts. Scattered showers. Waves 3 to 6 feet
occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots veering north after
midnight. Sprinkles through midnight. Waves 3 to 5 feet
occasionally to 7 feet.
.MONDAY...North winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
Waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 1 to 3 feet.
.MONDAY NIGHT...North winds 5 to 15 knots. Waves subsiding to
calm to 2 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming southwest 10 to
20 knots by mid afternoon. Waves calm to 2 feet.
$$

LSZ264-250800-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 PM EDT Sun Aug 24 2025

.LATE THIS AFTERNOON...Northwest winds 15 to 25 knots. Scattered
showers. Waves 3 to 6 feet occasionally to 8 feet.
.TONIGHT...Northwest winds 15 to 25 knots veering north late.
Sprinkles through midnight. Waves subsiding to 3 to 5 feet
occasionally to 7 feet, then building to 4 to 7 feet occasionally
to 9 feet.
.MONDAY...North winds 15 to 25 knots backing northwest in the
afternoon, then diminishing to 10 to 20 knots late. Waves
subsiding to 2 to 4 feet.
.MONDAY NIGHT...North winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to 1 to 3 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming west 10 to
20 knots by mid afternoon. Waves subsiding to calm to 2 feet.
$$

LSZ265-250800-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 PM EDT Sun Aug 24 2025

.LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. A chance
of waterspouts. Scattered showers. Waves 3 to 6 feet occasionally
to 8 feet.
.TONIGHT...Northwest winds 20 to 30 knots. A slight chance of
waterspouts through midnight. Scattered showers. Waves subsiding
to 3 to 6 feet occasionally to 8 feet.
.MONDAY...Northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. Waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.
.MONDAY NIGHT...Northwest winds 10 to 20 knots veering north
after midnight. Waves subsiding to 1 to 3 feet.
.TUESDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to calm to 2 feet.
$$

LSZ266-250800-
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 Sun Aug 24 2025

.LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. A chance
of waterspouts. Numerous showers. Waves 4 to 8 feet occasionally
to 10 feet.
.TONIGHT...Northwest winds 20 to 30 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible late. A slight
chance of waterspouts through midnight. Scattered showers. Waves
subsiding to 4 to 8 feet occasionally to 10 feet.
.MONDAY...Northwest winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots in the
afternoon. Waves building to 5 to 9 feet occasionally to 11 feet.
.MONDAY NIGHT...Northwest winds 15 to 25 knots veering north
after midnight, then diminishing to 10 to 20 knots late. Waves
subsiding to 2 to 4 feet.
.TUESDAY...North winds 10 to 20 knots backing northwest by mid
afternoon. Waves subsiding to 1 to 3 feet.
$$

LSZ267-250800-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 PM EDT Sun Aug 24 2025

.LATE THIS AFTERNOON...Northwest winds 20 to 30 knots. A slight
chance of waterspouts. Scattered showers. Waves 4 to 7 feet
occasionally to 9 feet.
.TONIGHT...Northwest winds 20 to 30 knots. Scattered showers.
Waves building to 4 to 8 feet occasionally to 10 feet.
.MONDAY...Northwest winds 20 to 30 knots. Waves building to 5 to
9 feet occasionally to 11 feet.
.MONDAY NIGHT...Northwest winds 20 to 30 knots becoming north
15 to 25 knots after midnight, then diminishing to 10 to 20 knots
late. Waves subsiding to 2 to 4 feet.
.TUESDAY...North winds 10 to 20 knots becoming northwest 15 to
25 knots by mid afternoon. Waves subsiding to 1 to 3 feet.
$$