Hazardous marine condition(s):
Small Craft Advisory
Hazardous Weather Outlook
LMZ740>743-041100-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
951 PM CST Wed Dec 3 2025
SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THURSDAY
REST OF TONIGHT
Northwest winds to 30 kt diminishing to 20 to
25 kt late. Mostly cloudy then clearing overnight. Waves 4 to 6
ft occasionally to 8 ft.
THURSDAY
Northwest winds 15 to 20 kt becoming west 5 to 10 kt
in the early afternoon and then becoming southwest late. Mostly
sunny. Waves 3 to 6 ft occasionally to 8 ft subsiding to 1 to 3
ft.
THURSDAY NIGHT
Southwest winds 10 to 15 kt increasing to 15 to
25 kt. Mostly clear in the evening, then becoming partly cloudy.
Waves 2 to 4 ft.
FRIDAY
Southwest winds 15 to 20 kt. Mostly cloudy. Waves 2 to
4 ft subsiding to 1 to 3 ft.
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