Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 220859
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
359 AM CDT Sun Sep 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>742-221530-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
359 AM CDT Sun Sep 22 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
MONDAY EVENING...

.TODAY...Variable winds less than 10 kt becoming southwest winds
10 to 15 kt this morning, then shifting to north and increasing to
20 to 25 kt late this afternoon. Showers and a chance of
thunderstorms. Waves around 1 ft quickly building to 3 to 5 ft
toward evening.
.TONIGHT...North winds to 30 kt. Chance of showers and slight
chance of thunderstorms in the evening. Waves 5 to 8 ft
occasionally to 10 ft building to 6 to 9 ft occasionally to
12 ft.
.MONDAY...Northeast winds 15 to 25 kt diminishing to 10 to 20 kt
in the afternoon. Mostly cloudy. Waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.MONDAY NIGHT...Northeast winds 10 to 15 kt becoming east
overnight. Slight chance of showers in the evening, then chance
of showers overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

LMZ743>745-221530-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
359 AM CDT Sun Sep 22 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...

.TODAY...Variable winds less than 10 kt becoming southwest winds
10 to 15 kt this morning. Showers and a chance of thunderstorms.
Waves 1 to 2 ft.
.TONIGHT...Winds shifting to north and increasing to 30 kt early
in the evening. Showers likely and slight chance of thunderstorms
in the evening. Waves waves quickly building to 4 to 7 ft
occasionally to 9 ft early in the evening and building to 6 to 9
ft occasionally to 12 ft overnight.
.MONDAY...Northeast winds 15 to 25 kt becoming north 10 to 20 kt
in the afternoon. Mostly cloudy. Waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...Northeast winds 10 to 15 kt becoming east
overnight. Slight chance of showers in the evening, then chance
of showers overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

- Izzi