![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
508 FZUS53 KLOT 301432 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 932 AM CDT Sun Jun 30 2024 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>742-302130- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 932 AM CDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...North winds 20 to 25 kt diminishing to 15 to 20 kt. Mostly cloudy in the morning then clearing. Waves 5 to 8 ft occasionally to 10 ft. .TONIGHT...North winds 10 to 20 kt becoming northeast. Clear. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .MONDAY...East winds 10 to 15 kt. Mostly sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft. .MONDAY NIGHT...Southeast winds 10 to 15 kt increasing to 15 to 20 kt overnight. Slight chance of showers overnight. Waves 1 to 2 ft building to 2 to 4 ft. $$ LMZ743>745-302130- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 932 AM CDT Sun Jun 30 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .REST OF TODAY...North winds 20 to 25 kt. Mostly cloudy late in the morning then clearing. Waves 5 to 8 ft occasionally to 10 ft. .TONIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt overnight. Clear. Waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft late. .MONDAY...East winds 10 to 15 kt becoming northeast. Mostly sunny. Waves 2 to 4 ft subsiding to 1 to 2 ft. .MONDAY NIGHT...Southeast winds 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft. $$ Doom