Station List

National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 181549
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
949 AM CST Sun Jan 18 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>743-182230
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 AM CST Sun Jan 18 2026

GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH MONDAY MORNING

REST OF TODAY
Southwest winds 15 to 25 kt. Snow late. Waves 2 to 4 ft.

TONIGHT
Southwest winds 15 to 25 kt becoming west gales to 40 kt after midnight. Snow in the evening, then a slight chance of snow overnight. Freezing spray overnight. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.

MONDAY
West gales to 35 kt diminishing to 30 kt in the morning. Mostly cloudy in the morning, then becoming partly cloudy. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.

MONDAY NIGHT
West winds 15 to 25 kt. Mostly cloudy. Waves 2 to 4 ft.

Wave heights are for ice free areas.

LMZ744-745-182230
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN
949 AM CST Sun Jan 18 2026

GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON

HEAVY FREEZING SPRAY WARNING IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON

REST OF TODAY
Southwest winds 15 to 25 kt. Chance of snow late. Waves 2 to 4 ft.

TONIGHT
Southwest winds 15 to 25 kt becoming west gales to 40 kt after midnight. Snow in the evening, then a chance of snow overnight. Heavy freezing spray overnight. Waves building to 8 to 11 ft occasionally to 14 ft.

MONDAY
West gales to 35 kt. Heavy freezing spray. Slight chance of snow. Waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft occasionally to 13 ft.

MONDAY NIGHT
West winds 15 to 25 kt. Freezing spray in the evening. Waves 4 to 7 ft occasionally to 9 ft.

Wave heights are for ice free areas.

Kluber