Hazardous marine condition(s):
Hazardous Weather Outlook
Small Craft Advisory
LMZ740>742-290315-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
228 PM CDT Tue Jul 28 2026
SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
TONIGHT
North winds to 30 kt becoming northeast and
diminishing to 10 to 15 kt. Clear. Waves 3 to 6 ft occasionally to
8 ft.
WEDNESDAY
North winds 10 to 15 kt becoming northeast. Sunny.
Waves 2 to 4 ft subsiding to 1 to 3 ft.
WEDNESDAY NIGHT
North winds around 10 kt becoming northwest
overnight. Mostly clear in the evening, then becoming partly
cloudy. Waves 1 to 2 ft.
THURSDAY
Northwest winds around 5 kt becoming southeast in the
afternoon. Partly cloudy. Waves around 1 ft.
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