NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
 Small Craft Advisory
   LMZ743>745-212115-  Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-  Burns Harbor to Michigan City IN-  913 AM CDT Tue Apr 21 2026    SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING    REST OF TODAY  South winds 15 to 25 kt becoming southwest and  increasing to 20 to 25 kt. Chance of showers and thunderstorms in  the afternoon. Waves 1 to 3 ft.  TONIGHT  Southwest winds 10 to 20 kt becoming northwest  overnight. Chance of showers and thunderstorms in the evening.  Areas of fog overnight. Waves 1 to 3 ft subsiding to around 1 ft.  WEDNESDAY  North winds around 10 kt. Areas of fog in the  morning. Waves around 1 ft.  WEDNESDAY NIGHT  East winds around 10 kt becoming south  overnight. Partly cloudy. Waves around 1 ft.    $$