425
AXUS43 KMQT 200801
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
400 AM EDT Sun Sep 20 2026

LSZ162-202000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EDT Sun Sep 20 2026 /301 AM CDT Sun Sep 20 2026/

.EARLY THIS MORNING...Northeast winds 15 to 25 knots. Waves calm
to 2 feet building to 1 to 3 feet.
.TODAY...Northeast winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then becoming east 15 to 25 knots
late. Waves building to 3 to 6 feet occasionally to 8 feet.
.TONIGHT...East winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.MONDAY...East winds 10 to 20 knots. Waves subsiding to calm to
2 feet, then building to 2 to 4 feet.
.MONDAY NIGHT...East winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
$$

LSZ263-202000-
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 AM EDT Sun Sep 20 2026

.EARLY THIS MORNING...Northeast winds 15 to 25 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TODAY...Northeast winds 15 to 25 knots. Waves building to 3 to
6 feet occasionally to 8 feet.
.TONIGHT...Northeast winds 10 to 20 knots becoming east 5 to
15 knots after midnight. Waves subsiding to 1 to 3 feet.
.MONDAY...East winds 5 to 15 knots increasing to 10 to 20 knots
late. Waves subsiding to calm to 2 feet, then building to 1 to
3 feet.
.MONDAY NIGHT...East winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. Waves subsiding to calm to 2 feet.
$$

LSZ264-202000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EDT Sun Sep 20 2026

.EARLY THIS MORNING...Northeast winds 15 to 25 knots. Waves 1 to
3 feet building to 2 to 4 feet.
.TODAY...Northeast winds 15 to 25 knots diminishing to 10 to
20 knots late. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet.
.TONIGHT...Northeast winds 5 to 15 knots veering east after
midnight. Waves subsiding to calm to 2 feet.
.MONDAY...East winds 5 to 15 knots. Waves calm to 2 feet.
.MONDAY NIGHT...East winds 5 to 15 knots. Waves calm to 2 feet.
$$

LSZ265-202000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EDT Sun Sep 20 2026

.EARLY THIS MORNING...North winds 15 to 25 knots. Waves calm to
2 feet building to 1 to 3 feet.
.TODAY...Northeast winds 20 to 30 knots diminishing to 15 to
25 knots late. Waves building to 3 to 5 feet occasionally to
7 feet.
.TONIGHT...Northeast winds 15 to 25 knots veering east after
midnight. Waves subsiding to 2 to 4 feet.
.MONDAY...East winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.MONDAY NIGHT...East winds 10 to 20 knots. Waves calm to 2 feet.
$$

LSZ266-202000-
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 AM EDT Sun Sep 20 2026

.EARLY THIS MORNING...North winds 15 to 25 knots. Waves calm to
2 feet building to 1 to 3 feet.
.TODAY...Northeast winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then backing north late. Waves
building to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...Northeast winds 10 to 20 knots becoming east 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
Waves subsiding to 2 to 4 feet.
.MONDAY...East winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northeast winds 5 to 15 knots veering east after
midnight. Waves calm to 2 feet.
$$

LSZ267-202000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EDT Sun Sep 20 2026

.EARLY THIS MORNING...North winds 10 to 20 knots. Waves calm to
2 feet.
.TODAY...Northeast winds 15 to 25 knots backing north late. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.TONIGHT...Northeast winds 15 to 25 knots veering east after
midnight, then diminishing to 10 to 20 knots late. Waves
subsiding to 1 to 3 feet.
.MONDAY...East winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then becoming northeast 10 to 20 knots late.
Waves subsiding to calm to 2 feet.
.MONDAY NIGHT...Northeast winds 10 to 20 knots veering east after
midnight. Waves calm to 2 feet.
$$