Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 222059
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
359 PM CDT Mon Apr 22 2024

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>742-230315-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
359 PM CDT Mon Apr 22 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.TONIGHT...Southwest winds to 30 kt. Chance of showers. Waves 2
to 4 ft building to 3 to 5 ft.
.TUESDAY...Southwest winds 20 to 25 kt increasing to 30 kt in the
afternoon. Chance of showers in the morning, then periods of
showers with isolated thunderstorms in the afternoon. Waves 2 to 4
ft.
.TUESDAY NIGHT...West winds 15 to 25 kt becoming north to 30 kt
becoming north in the late evening. Scattered showers and
isolated thunderstorms in the early evening. Waves 2 to 4 ft
building to 7 to 10 ft occasionally to 13 ft.
.WEDNESDAY...North winds to 30 kt diminishing to 10 to 20 kt in
the afternoon. Partly cloudy in the morning then clearing. Waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft late.

$$

LMZ743>745-230315-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
359 PM CDT Mon Apr 22 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.TONIGHT...Southwest winds 20 to 25 kt increasing to 30 kt after
midnight. Slight chance of showers. Waves 2 to 4 ft.
.TUESDAY...Southwest winds 20 to 25 kt increasing to 30 kt in the
afternoon. Chance of showers in the morning, then periods of
showers with isolated thunderstorms in the afternoon. Waves 2 to 4
ft.
.TUESDAY NIGHT...West winds 15 to 25 kt becoming north to 30 kt
around midnight. Scattered showers with isolated thunderstorms in
the early evening. Waves 2 to 4 ft building to 7 to 10 ft
occasionally to 13 ft.
.WEDNESDAY...North winds to 30 kt diminishing to 10 to 20 kt in
the afternoon. Mostly cloudy in the morning then clearing. Waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft late.

$$

RC


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