Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
949 FZUS53 KLOT 222053 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 253 PM CST Wed Jan 22 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>742-230415- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 253 PM CST Wed Jan 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... .TONIGHT...Southwest winds 20 to 25 kt becoming west 15 to 20 kt this evening. Snow likely in the evening, then chance of snow after midnight. Waves 1 to 3 ft. .THURSDAY...Northwest winds 15 to 25 kt. A chance of flurries in the morning. Waves 2 to 4 ft. .THURSDAY NIGHT...Northwest winds 10 to 15 kt becoming west. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 3 ft. .FRIDAY...West winds 10 to 15 kt becoming southwest in the afternoon. Mostly sunny. Waves 1 to 2 ft. Wave heights are for ice free areas. $$ LMZ743>745-230415- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 253 PM CST Wed Jan 22 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... .TONIGHT...Southwest winds 20 to 25 kt diminishing to 15 to 20 kt this evening. Snow likely in the evening, then chance of snow after midnight. Waves 1 to 3 ft. .THURSDAY...Northwest winds 15 to 25 kt. Chance of snow in the morning, then slight chance of snow in the afternoon. Waves 4 to 6 ft occasionally to 8 ft. A Small Craft Advisory will likely be needed. .THURSDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to 10 kt. Partly cloudy in the evening then clearing. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .FRIDAY...Southwest winds 10 to 15 kt. Mostly sunny. Waves 1 to 3 ft. Wave heights are for ice free areas. $$ Yack