Nearshore Marine Forecast
Issued by NWS Chicago, IL

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487
FZUS53 KLOT 170846
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
346 AM CDT Thu Aug 17 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>742-171530-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
346 AM CDT Thu Aug 17 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING
THROUGH LATE TONIGHT...

.TODAY...Southwest winds 15 to 20 kt increasing to 20 to 25 kt by
late morning. Chance of showers and slight chance of thunderstorms.
Waves 1 to 3 ft.
.TONIGHT...West winds 20 to 25 kt easing to 15 to 20 kt late.
Mostly cloudy in the evening then becoming partly cloudy. Waves 1
to 3 ft.
.FRIDAY...West winds 15 to 25 kt. Mostly sunny. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northwest winds 10 to 15 kt. Chance of showers
and slight chance of thunderstorms after midnight. Waves 1 ft or
less.

$$

LMZ743>745-171530-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
346 AM CDT Thu Aug 17 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING
THROUGH LATE TONIGHT...

.TODAY...Southwest winds 15 to 20 kt increasing to 20 to 25 kt.
Showers likely with a slight chance of a thunderstorm in the
morning, then a slight chance of showers in the afternoon. Waves
1 to 2 ft building to 2 to 4 ft.
.TONIGHT...West winds 20 to 25 kt easing to 15 to 20 kt late.
Partly cloudy. Waves 2 to 4 ft building to 3 to 5 ft after
midnight.
.FRIDAY...West winds 10 to 20 kt. Mostly sunny. Waves 3 to 5 ft
subsiding to 2 to 4 ft in the afternoon.
.FRIDAY NIGHT...Northwest winds 10 to 15 kt. Slight chance of
showers and thunderstorms after midnight. Waves 1 to 3 ft
subsiding to 2 ft or less after midnight.

$$

KJB



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