Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
153 FZUS53 KLOT 241553 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 953 AM CST Mon Nov 24 2025 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>742-242230- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 953 AM CST Mon Nov 24 2025 ...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...South winds 10 to 20 kt. Mostly cloudy. Waves 1 to 3 ft. .TONIGHT...South winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of rain in the evening, then rain likely overnight. Areas of fog overnight. Waves 1 to 2 ft. .TUESDAY...South winds 5 to 10 kt becoming southwest. Areas of fog and drizzle in the morning. Waves around 1 ft. .TUESDAY NIGHT...Southwest winds 10 to 20 kt becoming west and increasing to 35 kt gales overnight. Rain showers likely in the evening, then slight chance of showers overnight. Waves 1 to 2 ft building to 3 to 5 ft late. $$ LMZ743>745-242230- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 953 AM CST Mon Nov 24 2025 ...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH THURSDAY AFTERNOON... .REST OF TODAY...South winds 10 to 20 kt. Mostly cloudy. Waves 1 to 2 ft. .TONIGHT...South winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of rain in the evening, then rain overnight. Areas of fog overnight. Waves around 1 ft. .TUESDAY...South winds 5 to 10 kt becoming southwest in the afternoon. Areas of fog and drizzle in the morning. Waves 1 ft or less. .TUESDAY NIGHT...Southwest winds 10 to 20 kt becoming west and increasing to 35 kt gales overnight. Rain showers likely in the evening, then chance of showers overnight. Waves around 1 ft building to 4 to 7 ft occasionally to 9 ft late. $$ Doom