National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 120911
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
311 AM CST Mon Jan 12 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>743-121645
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
Calumet Harbor IL to Gary IN
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING

TODAY
Southwest winds 20 to 25 kt early, diminishing to 15 to 20 kt by midday. Partly cloudy. Waves 2 to 4 ft subsiding to 1 to 2 ft.

TONIGHT
Southwest winds 10 to 20 kt increasing to 15 to 25 kt toward morning. Mostly clear in the evening, then becoming mostly cloudy. Waves 1 to 3 ft.

TUESDAY
Southwest winds 15 to 25 kt. A chance of sprinkles in the afternoon. Waves 2 to 4 ft.

TUESDAY NIGHT
West winds 15 to 25 kt becoming northwest late. Mostly cloudy. Waves 2 to 4 ft.

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LMZ744-745-121645
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY

TODAY
Southwest winds to 30 kt early, diminishing to 15 to 20 kt by afternoon. Partly cloudy. Waves 3 to 5 ft subsiding to 1 to 3 ft.

TONIGHT
Southwest winds 15 to 20 kt increasing to 20 to 25 kt toward morning. Mostly clear in the evening, then becoming partly cloudy. Waves 1 to 3 ft building to 2 to 4 ft.

TUESDAY
Southwest winds to 30 kt. A chance of sprinkles in the afternoon. Waves 2 to 4 ft.

TUESDAY NIGHT
West winds 15 to 25 kt becoming northwest late. Slight chance of rain and snow showers overnight. Waves 2 to 4 ft building to 3 to 5 ft.

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Ratzer