419
FZUS53 KLOT 182004
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
304 PM CDT Fri Apr 18 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.

LMZ741>745-190315-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
304 PM CDT Fri Apr 18 2025

...GALE WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING...

.TONIGHT...Southwest gales to 35 kt easing to 30 kt this evening,
then becoming west and diminishing to 15 to 20 kt. Showers and
thunderstorms likely in the evening, then chance of showers and
thunderstorms after midnight. Waves 2 to 4 ft subsiding to 1 to 3
ft.
.SATURDAY...North winds around 10 kt becoming east late. Cloudy.
Waves 1 to 3 ft.
.SATURDAY NIGHT...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. Isolated showers in the
morning, then periods of showers in the afternoon. Waves 2 to
4 ft.

$$

LMZ740-190315-
Winthrop Harbor to Wilmette Harbor IL-
304 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...

.TONIGHT...Southwest winds to 30 kt becoming west and diminishing
to 15 to 20 kt. Showers and thunderstorms likely in the evening,
then chance of showers and thunderstorms after midnight. Waves
2 to 4 ft subsiding to 1 to 2 ft.
.SATURDAY...Northwest winds 5 to 10 kt becoming east late. Mostly
cloudy. Waves 1 to 2 ft.
.SATURDAY NIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt
overnight. Mostly cloudy. Waves 1 to 2 ft.
.SUNDAY...East winds 15 to 20 kt. Scattered showers in the
morning, then periods of showers in the afternoon. Waves 2 to
4 ft.

$$

KJB