FZUS53 KLOT 230843 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 243 AM CST Fri Jan 23 2026 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>743-231645- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- Calumet Harbor IL to Gary IN- 243 AM CST Fri Jan 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...Northwest winds to 30 kt diminishing to 15 to 25 kt late in the afternoon. A chance of flurries in the morning. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .TONIGHT...Northwest winds 10 to 20 kt. Slight chance of snow showers overnight. Waves 2 to 4 ft. .SATURDAY...Northwest winds around 10 kt becoming northeast in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves 1 to 3 ft. .SATURDAY NIGHT...East winds 10 to 15 kt. Chance of snow in the evening, then snow likely overnight. Waves 1 to 2 ft building to 2 to 4 ft. Wave heights are for ice free areas. $$ LMZ744-745-231645- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 243 AM CST Fri Jan 23 2026 ...GALE WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING... ...HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH THIS AFTERNOON... ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM CST THIS MORNING THROUGH LATE TONIGHT... .TODAY...Northwest gales to 35 kt diminishing to 15 to 25 kt. Heavy freezing spray. Snow showers. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9 ft. .TONIGHT...Northwest winds 10 to 20 kt. Snow showers likely. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .SATURDAY...Southwest winds around 10 kt becoming east in the afternoon. Slight chance of snow in the morning, then chance of snow in the afternoon. Waves 2 to 4 ft subsiding to 1 to 2 ft. .SATURDAY NIGHT...East winds around 10 kt. Chance of snow in the evening, then snow likely overnight. Waves 1 to 2 ft. Wave heights are for ice free areas. $$ Carlaw