Hazardous marine condition(s):
Hazardous Weather Outlook
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-
400 AM EDT Mon Apr 20 2026
EARLY THIS MORNING
North winds 5 to 15 knots. Waves calm to
2 feet.
TODAY
Southwest winds 5 to 15 knots becoming south 15 to
25 knots in the afternoon. Waves building to 2 to 4 feet.
TONIGHT
Southwest winds 15 to 25 knots becoming west 10 to
20 knots late. Waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 1 to 3 feet.
TUESDAY
Northwest winds 5 to 15 knots backing southwest late.
Waves subsiding to calm to 2 feet.
TUESDAY NIGHT
South winds less than 10 knots backing southeast
after midnight. Waves calm to 2 feet.
WEDNESDAY
Southeast winds less than 10 knots becoming east
5 to 15 knots by mid afternoon. Waves calm to 2 feet.
WEDNESDAY NIGHT
East winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. Waves building to 2 to 4 feet.
THURSDAY
Southeast winds 20 to 30 knots increasing to gales to
35 knots. Rain showers likely. Waves building to 8 to 11 feet
occasionally to 14 feet.
FRIDAY
West winds 20 to 30 knots diminishing to 15 to
25 knots. Waves subsiding to 2 to 4 feet.
$$