Nearshore Marine Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
262 FZUS53 KLOT 280314 NSHLOT Nearshore Marine Forecast National Weather Service Chicago/Romeoville IL 1014 PM CDT Thu Mar 27 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>742-280930- Winthrop Harbor to Wilmette Harbor IL- Wilmette Harbor to Northerly Island IL- Northerly Island to Calumet Harbor IL- 1014 PM CDT Thu Mar 27 2025 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .REST OF TONIGHT...Southeast winds 10 to 15 kt. Slight chance of showers late in the evening, then showers likely and a chance of thunderstorms after midnight. Waves 1 to 3 ft. .FRIDAY...South winds 15 to 25 kt becoming southwest and increasing to 35 kt gales in the afternoon. Chance of showers and thunderstorms in the morning. Waves 2 to 4 ft. .FRIDAY NIGHT...Southwest gales to 35 kt diminishing to 30 kt. Increasing cloudiness. Waves 3 to 5 ft. .SATURDAY...Southwest winds 15 to 20 kt becoming north in the afternoon. Showers. Patchy fog in the afternoon. Waves 3 to 5 ft. $$ LMZ743>745-280930- Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN- Burns Harbor to Michigan City IN- 1014 PM CDT Thu Mar 27 2025 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .REST OF TONIGHT...Southeast winds 10 to 15 kt becoming south. Slight chance of showers late in the evening, then showers likely and a chance of thunderstorms after midnight. Waves around 1 ft. .FRIDAY...South winds 15 to 20 kt becoming southwest and increasing to 35 kt gales in the afternoon. Chance of showers and thunderstorms in the morning. Waves 1 to 2 ft building to 3 to 5 ft. .FRIDAY NIGHT...Southwest gales to 35 kt diminishing to 30 kt. Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft. .SATURDAY...Southwest winds 15 to 20 kt. Chance of showers in the afternoon. Waves 2 to 4 ft. $$ Carlaw