Station List

National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 210349
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
949 PM CST Tue Jan 20 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>743-211045
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
Calumet Harbor IL to Gary IN
949 PM CST Tue Jan 20 2026

GALE WARNING IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT

REST OF TONIGHT
South winds 15 to 25 kt becoming southwest. Chance of snow late in the evening, then snow after midnight. Waves 1 to 3 ft.

WEDNESDAY
West winds 15 to 20 kt increasing to 20 to 25 kt in the afternoon. Snow likely in the morning. Waves 1 to 2 ft.

WEDNESDAY NIGHT
West gales to 35 kt. Numerous snow showers in the evening. Waves 2 to 4 ft building to 3 to 5 ft.

THURSDAY
West winds 20 to 25 kt diminishing to 15 to 20 kt. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.

Wave heights are for ice free areas.

LMZ744-745-211045
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN
949 PM CST Tue Jan 20 2026

GALE WARNING IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY NIGHT

REST OF TONIGHT
South winds 15 to 25 kt. Chance of snow late in the evening, then snow after midnight. Waves 1 to 3 ft.

WEDNESDAY
Southwest winds 15 to 25 kt becoming west 20 to 25 kt in the afternoon. Snow likely in the morning. Waves 2 to 4 ft.

WEDNESDAY NIGHT
West gales to 35 kt. Scattered snow showers in the evening. Freezing spray overnight. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.

THURSDAY
West winds to 30 kt diminishing to 15 to 20 kt. Freezing spray in the morning. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. A small craft advisory will likely be needed.

Wave heights are for ice free areas.

Ogorek