FZUS53 KLOT 240847
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
347 AM CDT Mon Mar 24 2025

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>742-241530
Winthrop Harbor to Wilmette Harbor IL
Wilmette Harbor to Northerly Island IL
Northerly Island to Calumet Harbor IL
347 AM CDT Mon Mar 24 2025

GALE WARNING IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON

TODAY
West gales to 35 kt becoming northwest and gradually diminishing to 20 to 25 kt late in the afternoon. Mostly cloudy in the morning, then becoming partly cloudy. Waves 3 to 5 ft subsiding to 2 to 4 ft.

TONIGHT
West winds 10 to 20 kt diminishing to 5 to 10 kt. Mostly clear. Waves 1 to 3 ft subsiding to around 2 ft or less.

TUESDAY
Northwest winds 5 to 10 kt becoming northeast 10 to 15 kt in the afternoon. Partly cloudy. Waves 1 to 2 ft.

TUESDAY NIGHT
Northeast winds 10 to 15 kt becoming west 5 to 10 kt overnight. Partly cloudy. Waves 1 to 2 ft.

---

LMZ743>745-241530
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN
Burns Harbor to Michigan City IN
347 AM CDT Mon Mar 24 2025

GALE WARNING IN EFFECT UNTIL 3 PM CDT THIS AFTERNOON

TODAY
West gales to 35 kt becoming northwest and diminishing to 20 to 25 kt late in the afternoon. Mostly cloudy in the morning, then becoming partly cloudy. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.

TONIGHT
West winds 10 to 20 kt diminishing to 5 to 10 kt. Mostly clear in the evening, then becoming partly cloudy. Waves 2 to 4 ft subsiding to 1 to 3 ft.

TUESDAY
Northwest winds 5 to 10 kt becoming north 10 to 15 kt in the afternoon. Slight chance of snow in the morning. Waves 1 to 2 ft.

TUESDAY NIGHT
Northeast winds 10 to 15 kt becoming north 5 to 10 kt overnight. Partly cloudy. Waves 1 to 2 ft.

---

Ratzer