8NM ESE Chicago IL

Northeast winds 15 to 25 kt becoming east and increasing to 30 kt overnight. Occasional 35 kt gales possible late. Showers likely overnight. Waves 3 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.

East winds to 30 kt becoming northeast and diminishing to 15 to 25 kt. Showers and a chance of thunderstorms in the evening, then showers likely and slight chance of thunderstorms overnight. Waves 6 to 9 ft occasionally to 12 ft subsiding to 5 to 8 ft occasionally to 10 ft.