Hazardous marine condition(s):
Hazardous Weather Outlook
Small Craft Advisory
LMZ740>742-081530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
348 AM CDT Wed Apr 8 2026
SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH LATE TONIGHT
TODAY
South winds 20 to 25 kt increasing to 30 kt this
morning. Occasional gale force gusts to 35 kt this afternoon.
Slight chance of showers early in the morning. Waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft.
TONIGHT
South winds to 30 kt becoming southwest 15 to 20 kt
after midnight. Showers likely and a slight chance of
thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.
THURSDAY
Southwest winds 10 to 20 kt becoming west 10 to
15 kt by midday, then northeast around 10 kt late in the
afternoon. Slight chance of showers in the morning. Waves 1 to 3
ft.
THURSDAY NIGHT
East winds 10 to 15 kt becoming northeast.
Showers and slight chance of thunderstorms. Waves 1 to 2 ft.
$$