Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
815 FZUS53 KLOT 042037 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 237 PM CST Sat Jan 4 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>742-050430- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 237 PM CST Sat Jan 4 2025 .TONIGHT...Northwest winds 15 to 20 kt diminishing to 10 to 15 kt. Increasing cloudiness. Waves 1 to 3 ft. .SUNDAY...Northwest winds 10 to 20 kt becoming north in the afternoon. Mostly cloudy. Waves 1 to 3 ft building to 2 to 4 ft. .SUNDAY NIGHT...Northeast winds 20 to 25 kt. Slight chance of snow in the evening, then chance of snow overnight. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. A small craft advisory will likely be needed. .MONDAY...North winds 20 to 25 kt. Chance of snow. Waves 6 to 9 ft occasionally to 12 ft. A small craft advisory will likely be needed. $$ LMZ744-745-050430- Gary to Burns Harbor IN-Burns Harbor to Michigan City IN- 237 PM CST Sat Jan 4 2025 .TONIGHT...West winds 10 to 15 kt becoming northwest. Increasing cloudiness. Waves 2 to 4 ft. .SUNDAY...Northwest winds 10 to 15 kt becoming north in the afternoon. Mostly cloudy. Waves 2 to 4 ft. .SUNDAY NIGHT...Northeast winds 15 to 25 kt. Slight chance of snow in the evening, then chance of snow overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. .MONDAY...Northeast winds 20 to 25 kt becoming north. Chance of snow. Waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft. $$ LMZ743-050430- Calumet Harbor IL to Gary IN- 237 PM CST Sat Jan 4 2025 .TONIGHT...West winds 10 to 15 kt becoming northwest. Increasing cloudiness. Waves 1 to 3 ft. .SUNDAY...Northwest winds 5 to 10 kt becoming north and increasing to 10 to 20 kt in the afternoon. Mostly cloudy. Waves 1 to 3 ft. .SUNDAY NIGHT...Northeast winds 15 to 25 kt. Slight chance of snow in the evening, then chance of snow overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. A small craft advisory will likely be needed. .MONDAY...Northeast winds 20 to 25 kt becoming north. Chance of snow. Waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft. A small craft advisory will likely be needed. $$ DK