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FZUS53 KLOT 191240
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
740 AM CDT Sat Apr 19 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.

LMZ740-741-192115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
740 AM CDT Sat Apr 19 2025

.REST OF TODAY...North winds around 10 kt becoming east late.
Areas of fog and drizzle in the morning. Waves 1 to 3 ft.
.TONIGHT...East winds 5 to 10 kt becoming northeast 10 to 15 kt
late. Mostly cloudy. Waves 1 to 3 ft.
.SUNDAY...East winds 10 to 20 kt. Slight chance of showers in the
morning, then showers likely in the afternoon. Waves 2 to 4 ft
building to 3 to 5 ft.
.SUNDAY NIGHT...East winds 20 to 25 kt becoming southeast
overnight. Showers and slight chance of thunderstorms in the
evening, then showers and a chance of thunderstorms overnight.
Waves 4 to 7 ft occasionally to 9 ft. A small craft advisory will
likely be needed.

$$

LMZ742>745-192115-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
740 AM CDT Sat Apr 19 2025

.REST OF TODAY...Northeast winds around 10 kt becoming east late.
Areas of fog and drizzle in the morning. Waves 1 to 3 ft.
.TONIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt.
Mostly cloudy. Waves 1 to 2 ft.
.SUNDAY...East winds 10 to 20 kt. Slight chance of showers in the
morning, then chance of showers in the afternoon. Waves 2 to
4 ft.
.SUNDAY NIGHT...East winds 20 to 25 kt becoming southeast
overnight. Showers likely and slight chance of thunderstorms in
the evening, then showers and a chance of thunderstorms
overnight. Waves 3 to 5 ft.

$$

KJB