410
FZUS53 KLOT 210849
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
349 AM CDT Sat Sep 21 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>742-211545-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
349 AM CDT Sat Sep 21 2024

.TODAY...Variable winds less than 10 kt becoming east 10 to 15
kt this afternoon. Mostly sunny. Waves 1 ft or less building to 1
to 2 ft this afternoon.
.TONIGHT...Southeast winds 10 to 15 kt becoming south 5 to 10 kt
overnight. Chance of showers and thunderstorms, mainly after
midnight. Waves 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 20 kt shifting to north 15 to 25
kt late in the afternoon. Periods of rain and a chance of
thunderstorms. Waves around 1 ft quickly building to 3 to 5 ft by
evening.
.SUNDAY NIGHT...North winds 20 to 25 kt. Chance of showers. Waves
3 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft during the evening. A small craft advisory will likely
be needed.


$$

LMZ743>745-211545-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
349 AM CDT Sat Sep 21 2024

.TODAY...Variable winds less than 10 kt becoming northeast 5 to
10 kt late. Mostly sunny. Waves 1 ft or less.
.TONIGHT...Southeast winds 5 to 10 kt becoming south overnight.
Slight chance of showers in the evening, then chance of showers
and thunderstorms overnight. Waves around 1 ft.
.SUNDAY...South winds 5 to 10 kt becoming southwest 10 to 15 kt
in the afternoon, then shifting to north 15 to 25 kt toward
evening. Periods of rain and a chance of thunderstorms. Waves 1
to 2 ft quickly building to 2 to 4 ft toward evening.
.SUNDAY NIGHT...North winds 20 to 25 kt. Showers likely and a
chance of thunderstorms in the evening, then chance of showers
overnight. Waves 2 to 4 ft quickly building to 5 to 8 ft
occasionally to 10 ft during the evening. A small craft advisory
will likely be needed.

$$

- Izzi