National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 030942
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
342 AM CST Tue Mar 3 2026

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>742-031615
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
342 AM CST Tue Mar 3 2026

TODAY
Southeast winds around 10 kt becoming northeast in the afternoon. Isolated showers early in the morning. Waves 1 to 2 ft.

TONIGHT
Northeast winds 5 to 10 kt. Mostly cloudy. Waves around 1 ft.

WEDNESDAY
East winds around 10 kt becoming northeast. Slight chance of showers late in the afternoon. Waves around 1 ft.

WEDNESDAY NIGHT
Northeast winds around 10 kt. Slight chance of showers in the evening, then showers likely overnight. Waves 1 to 2 ft.

LMZ743>745-031615
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
342 AM CST Tue Mar 3 2026

TODAY
Southeast winds around 10 kt becoming northeast in the afternoon. Isolated showers early in the morning. Waves 1 ft or less.

TONIGHT
Northeast winds 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

WEDNESDAY
East winds around 10 kt becoming northeast. Slight chance of showers in the afternoon. Waves around 1 ft.

WEDNESDAY NIGHT
East winds 5 to 10 kt. Chance of showers in the evening, then showers likely overnight. Waves around 1 ft.

Petr