National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 070943
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
343 AM CST Sat Feb 7 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>742-072230
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
343 AM CST Sat Feb 7 2026

EARLY THIS MORNING
Northwest winds 15 to 25 kt. Mostly clear. Waves 3 to 5 ft.

TODAY
Northwest winds 10 to 20 kt becoming north and diminishing to around 10 kt this morning, then becoming variable less than 10 kt this afternoon. Mostly sunny in the morning, then becoming partly cloudy. Waves 3 to 5 ft subsiding to 1 to 2 ft.

TONIGHT
Southeast winds around 5 kt increasing to 10 to 15 kt. Snow likely after midnight. Waves 1 to 2 ft.

SUNDAY
South winds 10 to 15 kt becoming southeast. Mostly cloudy. Waves 1 to 2 ft.

SUNDAY NIGHT
Southeast winds 10 to 15 kt becoming south. Mostly cloudy. Waves 1 to 3 ft.

Wave heights are for ice free areas.

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LMZ743>745-072230
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
343 AM CST Sat Feb 7 2026

EARLY THIS MORNING
North winds 15 to 25 kt. A chance of flurries.

TODAY
North winds 15 to 20 kt diminishing to around 10 kt this morning, then becoming variable less than 10 kt this afternoon. A chance of flurries in the morning.

TONIGHT
Southeast winds around 5 kt increasing to 10 to 15 kt. Chance of snow after midnight.

SUNDAY
Southeast winds 10 to 15 kt. Mostly cloudy.

SUNDAY NIGHT
Southeast winds 10 to 15 kt becoming south. Mostly cloudy.

Waves omitted due to extensive ice coverage.

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- Izzi