LMZ740>742-131030-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
902 PM CST Thu Feb 12 2026
REST OF TONIGHT
Southeast winds 5 to 10 kt becoming south
late. Partly cloudy. Waves around 1 ft.
FRIDAY
South winds 5 to 10 kt becoming southwest 10 to 20 kt.
Mostly sunny. Waves around 1 ft.
FRIDAY NIGHT
Southwest winds around 10 kt becoming west 5 to 10
kt overnight. Mostly clear. Waves around 1 ft.
SATURDAY
Variable winds around 5 kt becoming southeast in the
afternoon. Mostly cloudy. Waves 1 ft or less.
Wave heights are for ice free areas.
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