Station List

National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 240917
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
317 AM CST Wed Dec 24 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.

LMZ740-741-241630
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
317 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY MORNING

TODAY
East winds 10 to 15 kt becoming southeast. Areas of drizzle this evening. Waves 2 to 4 ft.

TONIGHT
Southeast winds 10 to 15 kt becoming north overnight. Drizzle and patchy fog. Waves 1 to 3 ft.

THURSDAY
Northeast winds 15 to 20 kt. Cloudy. Waves 2 to 4 ft quickily building to 4 to 6 ft occasionally to 8 ft in the morning.

THURSDAY NIGHT
East winds 15 to 25 kt becoming southeast. Rain likely. Waves 4 to 7 ft occasionally to 9 ft.

LMZ742-241630
Northerly Island to Calumet Harbor IL
317 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT

TODAY
East winds 10 to 15 kt becoming southeast. Areas of drizzle in the evening. Waves 1 to 3 ft.

TONIGHT
Southeast winds 10 to 15 kt becoming north overnight. Drizzle and patchy fog. Waves 1 to 3 ft.

THURSDAY
Northeast winds around 15 kt. Cloudy. Waves 2 to 4 ft building to 3 to 6 ft occasionally to 8 ft in the afternoon.

THURSDAY NIGHT
East winds 15 to 20 kt becoming southeast. Rain likely. Waves 3 to 6 ft occasionally to 8 ft.

LMZ743>745-241630
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
317 AM CST Wed Dec 24 2025

TODAY
East winds 10 to 15 kt becoming southeast. Areas of drizzle in the eveing. Waves 1 to 3 ft.

TONIGHT
South winds 10 to 15 kt becoming north overnight. Drizzle and patchy fog. Waves 1 to 2 ft.

THURSDAY
Northeast winds 15 to 20 kt. Cloudy. Waves 2 to 4 ft.

THURSDAY NIGHT
East winds 15 to 25 kt becoming southeast. Rain likely. Waves 2 to 4 ft.

Borchardt