Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 201512
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
1012 AM CDT Fri May 20 2022

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>742-202130-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
1012 AM CDT Fri May 20 2022

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

.REST OF TODAY...Southwest winds to 30 kt with a few gale force
gusts to 35 kt this afternoon, abruptly shifting to north 15 to 25
kt early this evening. Scattered showers and isolated
thunderstorms mainly late day. Waves 2 to 4 ft.
.TONIGHT...North winds 10 to 20 kt becoming west 5 to 10 kt after
midnight. Scattered showers and thunderstorms. Waves 1 to 3 ft
subsiding to 1 ft or less after midnight.
.SATURDAY...Variable winds 5 to 10 kt early becoming north 10 to
15 kt in the late morning and afternoon. Scattered showers and
thunderstorms. Waves around 1 ft building to 1 to 3 ft late.
.SATURDAY NIGHT...North winds 15 to 20 kt becoming northwest late.
Scattered showers and a few thunderstorms in the evening
diminishing in coverage overnight. Waves 2 to 4 ft.

$$

LMZ743>745-202130-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
1012 AM CDT Fri May 20 2022

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM TO 9 PM CDT THIS
EVENING...

.REST OF TODAY...Southwest winds to 30 kt this morning becoming
gales to 35 kt this afternoon, and then abruptly shifting to
north 15 to 25 kt early this evening. Scattered showers and
thunderstorms late this morning and again late today. Waves 2 to
4 ft building to 3 to 5 ft late.
.TONIGHT...North winds 15 to 25 kt becoming northeast 5 to 10 kt
after midnight. Scattered showers and thunderstorms. Waves 2 to 4
ft subsiding to 1 to 3 ft after midnight.
.SATURDAY...Northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. Scattered showers and thunderstorms. Waves
around 1 ft building to 1 to 3 ft in the afternoon.
.SATURDAY NIGHT...North winds 15 to 20 kt becoming northwest
15 to 25 kt after midnight. Scattered showers and a few thunderstorms
diminishing in coverage overnight. Waves 2 to 4 ft building to 3
to 5 ft after midnight.

$$

Borchardt


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