Nearshore Marine Forecast
Issued by NWS Chicago, IL

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781
FZUS53 KLOT 120920
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
320 AM CST Tue Dec 12 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>742-121700-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
320 AM CST Tue Dec 12 2017

...GALE WARNING IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...Northwest gales to 35 kt diminishing to 30 kt in the
late morning and afternoon. Freezing spray in the morning. Waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...Northwest winds 15 to 25 kt. Partly cloudy in the
evening then becoming mostly cloudy. Waves 4 to 6 ft occasionally
to 8 ft subsiding to 2 to 4 ft after midnight.
.WEDNESDAY...South winds 10 to 20 kt. Chance of snow. Waves 2 to
4 ft building to 3 to 5 ft in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 20 kt. Snow likely. Waves
4 to 6 ft occasionally to 8 ft.

$$

LMZ743>745-121700-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
320 AM CST Tue Dec 12 2017

...GALE WARNING IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northwest gales to 40 kt diminishing to 30 kt late in
the afternoon. Freezing spray through the day. chance of snow
showers through the day. Waves 10 to 14 ft occasionally to 18 ft
subsiding to 8 to 12 ft occasionally to 16 ft.
.TONIGHT...Northwest winds to 30 kt becoming west 10 to 20 kt
after midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
7 ft occasionally to 9 ft after midnight.
.WEDNESDAY...South winds 15 to 25 kt becoming southwest in the
afternoon. Chance of snow. Waves 3 to 5 ft subsiding to 2 to 4 ft
in the afternoon.
.WEDNESDAY NIGHT...North winds 15 to 25 kt. Snow likely. Waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft after
midnight.

$$

JEE



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