Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 131419
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
919 AM CDT Fri Apr 13 2018

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.

LMZ740-132130-
Winthrop Harbor to Wilmette Harbor-
919 AM CDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...Northeast winds 15 to 25 kt increasing to 30 kt
late in the day. Chance of showers and thunderstorms in the
afternoon. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8
ft occasionally to 10 ft late.
.TONIGHT...Northeast winds to 30 kt increasing to gales to 40 kt
late. Rain showers and a chance of thunderstorms. Waves 7 to 10
ft occasionally to 13 ft building to 8 to 11 ft occasionally to 14
ft.
.SATURDAY...Northeast gales to 40 kt diminishing to gales to 35
kt late in the day. Rain showers. Slight chance of thunderstorms.
Waves 8 to 12 ft occasionally to 16 ft.
.SATURDAY NIGHT...Northeast winds to 30 kt. A few gale force gusts
to 35 kt in the evening. Rain. Waves 8 to 11 ft occasionally to
14 ft.

$$

LMZ741-742-132130-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
919 AM CDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH LATE TONIGHT...

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...North winds 10 to 20 kt increasing to 15 to 25
kt this afternoon. Chance of showers and thunderstorms. Waves 2
to 4 ft building to 3 to 5 ft.
.TONIGHT...North winds to 30 kt becoming northeast after
midnight. Gale force gusts to 35 kt late. Rain showers and a
chance of thunderstorms. Waves 4 to 7 ft occasionally to 9 ft
building to 6 to 9 ft occasionally to 12 ft after midnight.
.SATURDAY...Northeast gales to 40 kt diminishing to 35 kt late.
Rain showers in the morning. Chance of showers in the afternoon.
Chance of thunderstorms through the day. Waves 7 to 10 ft
occasionally to 13 ft.
.SATURDAY NIGHT...Northeast winds to 30 kt. Rain likely. Waves
6 to 9 ft occasionally to 12 ft.

$$

LMZ743>745-132130-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
919 AM CDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

.REST OF TODAY...Variable winds around 10 kt becoming west 10 to
15 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.
.TONIGHT...Northeast winds 10 to 20 kt becoming east after
midnight. Rain showers with a chance of thunderstorms. Waves 3 to
5 ft.
.SATURDAY...Northeast winds 15 to 25 kt increasing to 30 kt. Rain
showers in the morning. Chance of thunderstorms through the day.
Chance of showers in the afternoon. Waves 3 to 6 ft occasionally
to 8 ft building to 4 to 7 ft occasionally to 9 ft in the
afternoon.
.SATURDAY NIGHT...East winds to 30 kt. Rain likely in the
evening, then rain after midnight. Waves 4 to 6 ft occasionally
to 8 ft subsiding to 3 to 5 ft after midnight.

$$

MTF



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