National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 111557
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
957 AM CST Wed Nov 11 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>742-112215
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
957 AM CST Wed Nov 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT

REST OF TODAY
East winds 5 to 10 kt becoming northeast and increasing to 15 to 25 kt in the afternoon. Chance of rain late in the morning, then rain likely in the afternoon. Waves around 1 ft building to 2 to 4 ft.

TONIGHT
North winds 15 to 25 kt increasing to 30 kt. Slight chance of rain in the evening, then chance of rain overnight. Waves 3 to 5 ft building to 5 to 8 ft occasionally to 10 ft.

THURSDAY
North winds to 30 kt with occasional gales to 35 kt. Showers likely. Slight chance of waterspouts in the afternoon. Waves 8 to 11 ft occasionally to 14 ft.

THURSDAY NIGHT
North winds to 30 kt with occasional gales to 35 kt becoming northwest and diminishing to 15 to 25 kt. Slight chance of waterspouts. Chance of showers. Waves 8 to 11 ft occasionally to 14 ft subsiding to 6 to 9 ft occasionally to 12 ft.

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LMZ743>745-112215
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
957 AM CST Wed Nov 11 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT

REST OF TODAY
Southeast winds 5 to 10 kt becoming northeast and increasing to 20 to 25 kt. Chance of rain late in the morning, then rain likely in the afternoon. Waves 1 ft or less building to 3 to 5 ft.

TONIGHT
North winds 20 to 25 kt increasing to 30 kt. Chance of rain. Waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft occasionally to 13 ft.

THURSDAY
North winds to 30 kt with occasional gales to 35 kt. Showers. Slight chance of waterspouts in the afternoon. Waves 8 to 12 ft occasionally to 16 ft.

THURSDAY NIGHT
North winds to 30 kt with occasional gales to 35 kt becoming northwest 15 to 25 kt. Slight chance of waterspouts. Showers. Waves 8 to 12 ft occasionally to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.

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