


Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
094 FZUS53 KLOT 072035 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 335 PM CDT Tue Oct 7 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>742-080330- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 335 PM CDT Tue Oct 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...North winds 15 to 25 kt. Partly cloudy early in the evening then clearing. Waves 3 to 6 ft occasionally to 8 ft. .WEDNESDAY...Northeast winds 15 to 25 kt. Partly cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft late in the afternoon. .WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east overnight. Mostly clear. Waves 2 to 4 ft. .THURSDAY...Southeast winds 10 to 15 kt. Sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft. $$ LMZ743>745-080330- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 335 PM CDT Tue Oct 7 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON... .TONIGHT...North winds 20 to 25 kt. Mostly cloudy early in the evening then clearing. Waves 4 to 7 ft occasionally to 9 ft. .WEDNESDAY...Northeast winds 15 to 25 kt. Mostly sunny. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft late in the afternoon. .WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east overnight. Clear. Waves 2 to 4 ft. .THURSDAY...Southeast winds 10 to 15 kt becoming east. Sunny. Waves 1 to 3 ft. $$ Petr