Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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580 FZUS53 KLOT 250918 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 418 AM CDT Tue Jun 25 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>742-251515- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 418 AM CDT Tue Jun 25 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Southwest winds to 30 kt becoming west 15 to 25 kt in the afternoon. Showers and thunderstorms likely in the morning, then chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds and heavy rainfall. Waves 2 to 4 ft subsiding to 1 to 3 ft. .TONIGHT...West winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of showers and thunderstorms. Some thunderstorms may produce gusty winds and heavy rainfall in the evening. Waves 1 to 2 ft subsiding to 1 ft or less. .WEDNESDAY...Northwest winds 10 to 15 kt becoming north 15 to 20 kt in the afternoon. Slight chance of showers and thunderstorms in the morning. Waves 1 to 2 ft building to 2 to 4 ft. .WEDNESDAY NIGHT...North winds 10 to 20 kt. Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft. $$ LMZ743>745-251515- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 418 AM CDT Tue Jun 25 2024 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Southwest winds to 30 kt becoming west 15 to 25 kt in the afternoon. Showers and thunderstorms likely. Some thunderstorms may produce gusty winds and heavy rainfall. Waves 2 to 4 ft subsiding to 1 to 3 ft. .TONIGHT...West winds 10 to 15 kt diminishing to 5 to 10 kt. Showers and thunderstorms likely in the evening, then chance of showers and thunderstorms overnight. Some thunderstorms may produce gusty winds and heavy rainfall in the evening. Waves 1 to 2 ft. .WEDNESDAY...Northwest winds 10 to 15 kt becoming north 15 to 20 kt in the afternoon. Chance of showers and thunderstorms in the morning. Waves 1 to 2 ft building to 2 to 4 ft. .WEDNESDAY NIGHT...North winds 15 to 20 kt. Mostly clear. Waves 3 to 5 ft. $$ Kluber