NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
 Small Craft Advisory
   LMZ740>743-031615-  Winthrop Harbor to Wilmette Harbor IL-  Wilmette Harbor to Northerly Island IL-  Northerly Island to Calumet Harbor IL-  Calumet Harbor IL to Gary IN-  257 AM CST Wed Dec 3 2025    SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING  SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH  THURSDAY MORNING    TODAY  Southwest winds 20 to 25 kt becoming northwest 15 to  20 kt in the afternoon. Slight chance of snow in the morning,  then chance of snow in the afternoon. Waves 2 to 4 ft.  TONIGHT  Northwest winds 15 to 25 kt. Mostly cloudy in the  evening, then becoming partly cloudy. Waves 4 to 6 ft  occasionally to 8 ft.  THURSDAY  Northwest winds 10 to 20 kt becoming west and  diminishing to around 10 kt in the afternoon. Partly cloudy in  the morning then clearing. Waves 4 to 6 ft occasionally to 8 ft  subsiding to 2 to 4 ft.  THURSDAY NIGHT  Southwest winds 10 to 20 kt. Partly cloudy.  Waves 2 to 4 ft.    $$