National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 220226
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
926 PM CDT Mon Apr 21 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>742-220915
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
926 PM CDT Mon Apr 21 2025

REST OF TONIGHT
West winds 10 to 20 kt diminishing to 5 to 10 kt by overnight. Mostly clear. Waves 2 ft or less.

TUESDAY
South winds 5 to 10 kt becoming southwest 10 to 15 kt late. Scattered showers and thunderstorms. Waves 1 to 2 ft.

TUESDAY NIGHT
South winds 10 to 15 kt becoming northwest 5 to 10 kt overnight. Scattered showers and thunderstorms. Waves 1 to 2 ft.

WEDNESDAY
Southeast winds 5 to 10 kt becoming east in the afternoon. Scattered showers and thunderstorms. Waves 1 to 2 ft.

LMZ743>745-220915
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
926 PM CDT Mon Apr 21 2025

REST OF TONIGHT
West winds 10 to 15 kt becoming southwest around 5 kt. Partly cloudy late in the evening then clearing. Waves 1 to 3 ft subsiding to around 1 ft.

TUESDAY
South winds 5 to 10 kt becoming southwest 10 to 15 kt late. Scattered showers and thunderstorms. Waves around 1 ft.

TUESDAY NIGHT
South winds 10 to 15 kt becoming west 5 to 10 kt overnight. Scattered showers and thunderstorms. Waves around 1 ft.

WEDNESDAY
South winds 5 to 10 kt becoming east in the afternoon. Scattered showers and thunderstorms. Waves around 1 ft.

KJB