Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
937 FZUS53 KLOT 100902 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 402 AM CDT Wed Jul 10 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. LMZ740-101530- Winthrop Harbor to Wilmette Harbor IL- 402 AM CDT Wed Jul 10 2024 .TODAY...North winds 15 to 25 kt diminishing to 10 to 20 kt in the afternoon. Rain in the morning, then chance of rain in the afternoon. Waves 3 to 5 ft. .TONIGHT...North winds 5 to 10 kt becoming northwest overnight. Mostly clear in the evening, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. .THURSDAY...North winds 5 to 10 kt becoming east in the afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast overnight. Mostly clear. Waves around 1 ft. $$ LMZ741-742-101530- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 402 AM CDT Wed Jul 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...North winds to 30 kt diminishing to 15 to 25 kt in the afternoon. Rain in the morning, then chance of rain in the afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft late in the afternoon. .TONIGHT...North winds 10 to 15 kt becoming northwest 5 to 10 kt overnight. Mostly clear in the evening, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft. .THURSDAY...North winds 5 to 10 kt becoming northeast in the afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast overnight. Mostly clear. Waves around 1 ft. $$ LMZ743>745-101530- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 402 AM CDT Wed Jul 10 2024 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...North winds to 30 kt diminishing to 15 to 25 kt in the afternoon. A few gale force gusts to 35 kt possible in the morning. Rain in the morning, then chance of rain in the afternoon. Waves 5 to 8 ft occasionally to 10 ft. .TONIGHT...North winds 10 to 15 kt becoming northwest less than 10 kt overnight. Mostly clear in the evening, then becoming partly cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. .THURSDAY...North winds 5 to 10 kt becoming northeast in the afternoon. Slight chance of showers and thunderstorms in the afternoon. Waves 1 to 2 ft. .THURSDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast overnight. Mostly clear. Waves around 1 ft. $$ KJB