Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 230805
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
305 AM CDT Mon Oct 23 2017

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>742-231530-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
305 AM CDT Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.TODAY...North winds 10 to 20 kt becoming northwest late in the
afternoon. Rain in the morning, then chance of rain in the
afternoon. Waves 3 to 5 ft.
.TONIGHT...West winds 15 to 20 kt. Showers likely. Waves 2 to 4
ft.
.TUESDAY...West winds to 30 kt increasing to gales to 35 kt in
the afternoon. Rain showers. Waves 2 to 4 ft building to 3 to
5 ft in the afternoon.
.TUESDAY NIGHT...Northwest gales to 35 kt diminishing to 30 kt
late. Chance of showers in the evening. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft after midnight.

$$

LMZ743>745-231530-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
305 AM CDT Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.TODAY...North winds 10 to 20 kt increasing to 15 to 25 kt
then becoming northwest late in the afternoon. Rain. Waves 3 to 6
ft occasionally to 8 ft.
.TONIGHT...West winds 15 to 25 kt. Showers likely. Waves 3 to 6
ft occasionally to 8 ft.
.TUESDAY...West winds to 30 kt increasing to gales to 35 kt in
the afternoon. Rain showers. Waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft in the afternoon.
.TUESDAY NIGHT...West gales to 35 kt becoming northwest to 30 kt
late. Rain showers likely in the evening, then slight chance of
showers after midnight. Waves 7 to 10 ft occasionally to 13 ft.

$$

BMD



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