Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 211952
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
252 PM CDT Tue May 21 2019

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>743-220315-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
252 PM CDT Tue May 21 2019

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

.TONIGHT...Southeast winds to 30 kt. Slight chance of showers in
the evening, then showers with thunderstorms likely after
midnight. Waves 4 to 6 ft occasionally to 8 ft then 4 to 7 ft
occasionally to 9 ft after midnight.
.WEDNESDAY...South winds to 30 kt. Partly sunny in the morning
then clearing. Waves subsiding to 3 to 5 ft.
.WEDNESDAY NIGHT...South winds 20 to 25 kt becoming southwest 10
to 20 kt after midnight. Chance of showers and thunderstorms after
midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight.
.THURSDAY...West winds 10 to 20 kt. Slight chance of showers and
thunderstorms in the morning. Waves 1 ft or less.

$$

LMZ744-745-220315-
Gary to Burns Harbor-Burns Harbor to Michigan City-
252 PM CDT Tue May 21 2019

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

.TONIGHT...Southeast winds to 30 kt. Slight chance of showers in
the evening, then showers with thunderstorms likely after
midnight. Waves 3 to 5 ft subsiding to 2 to 4 ft late.
.WEDNESDAY...Southeast winds 20 to 25 kt becoming south to 30 kt
in the afternoon. Partly sunny in the morning then clearing.
Waves 1 to 3 ft.
.WEDNESDAY NIGHT...South winds 20 to 25 kt becoming southwest
15 to 25 kt after midnight. Chance of showers and thunderstorms
after midnight. Waves 1 to 3 ft.
.THURSDAY...West winds 10 to 15 kt. Slight chance of showers and
thunderstorms in the morning. Waves 1 ft or less.

$$



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