NWS Marine Forecast

   LMZ740-741-101530-  Winthrop Harbor to Wilmette Harbor IL-  Wilmette Harbor to Northerly Island IL-  307 AM CDT Tue Mar 10 2026    SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING  THROUGH LATE WEDNESDAY NIGHT    TODAY  Southwest winds 10 to 20 kt becoming north and increasing  to 15 to 25 kt becoming north in the morning. Areas of fog.  Chance of showers and thunderstorms mainly late in the afternoon.  Waves 1 to 3 ft building to 3 to 6 ft occasionally to 8 ft.  TONIGHT  North winds 15 to 25 kt. Areas of fog. Rain showers  with thunderstorms likely. Some thunderstorms may be severe. Waves  3 to 6 ft occasionally to 8 ft.  WEDNESDAY  North winds 15 to 25 kt becoming northwest to 30 kt.  Rain showers in the morning, then showers and a chance of snow  showers in the afternoon. Waves 4 to 6 ft occasionally to 8 ft  building to 5 to 8 ft occasionally to 10 ft.  WEDNESDAY NIGHT  Northwest winds to 30 kt diminishing to 10 to  20 kt. Mostly cloudy in the evening then clearing. Waves 5 to  8 ft occasionally to 10 ft subsiding to 3 to 5 ft late.    $$