Saturday, January 23, 2021

Nearshore Marine Forecast for McHenry Co., IL

<pre>006
FZUS53 KLOT 232209 CCA
NSHLOT

NEARSHORE MARINE FORECAST...CORRECTED
National Weather Service Chicago/Romeoville IL
409 PM CST Sat Jan 23 2021

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.

LMZ740-240515-
Winthrop Harbor to Wilmette Harbor-
409 PM CST Sat Jan 23 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT CST TONIGHT
THROUGH SUNDAY MORNING...

.TONIGHT...South winds 10 to 20 kt becoming southeast 20 to 25 kt
by midnight. Chance of snow after midnight. Waves 1 to 3 ft
building to 4 to 6 ft occasionally to 8 ft.
.SUNDAY...South winds 15 to 25 kt becoming west 10 to 15 kt in
the afternoon. Snow likely in the morning. Slight chance of light
drizzle and freezing drizzle in the afternoon. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft in the afternoon.
.SUNDAY NIGHT...North winds 10 to 15 kt. Mostly cloudy. Waves
1 to 3 ft.
.MONDAY...Northeast winds 15 to 20 kt increasing to 30 kt in the
afternoon. Chance of snow through the day. Waves 4 to 6 ft
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft
in the afternoon. Gale conditions likely Monday night.

$$

LMZ741-742-240515-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
409 PM CST Sat Jan 23 2021

.TONIGHT...South winds 10 to 20 kt becoming southeast by midnight.
Chance of snow after midnight. Waves 2 to 4 ft building to 3 to 5
ft.
.SUNDAY...South winds 15 to 20 kt becoming west 10 to 15 kt in
the afternoon. Snow likely in the morning. Slight chance of light
drizzle and freezing drizzle in the afternoon. Waves 3 to 5 ft
subsiding to 1 to 3 ft in the afternoon.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt. Cloudy. Waves 1 to 3
ft building to 2 to 4 ft after midnight.
.MONDAY...East winds 15 to 20 kt increasing to 30 kt in the
afternoon. Slight chance of snow in the morning, then snow likely
in the afternoon. Waves 4 to 6 ft occasionally to 8 ft building
to 6 to 9 ft occasionally to 12 ft in the afternoon. Gale conditions
likely Monday night.

$$

LMZ743>745-240515-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
409 PM CST Sat Jan 23 2021

.TONIGHT...South winds 10 to 20 kt becoming southeast by midnight.
Chance of snow after midnight. Waves 1 to 3 ft.
.SUNDAY...South winds 15 to 20 kt becoming southwest 10 to 15 kt
in the afternoon. Chance of snow in the morning. Slight chance of
light drizzle and freezing drizzle in the afternoon. Waves 2 to 4
ft subsiding to 1 to 3 ft in the afternoon.
.SUNDAY NIGHT...North winds 5 to 10 kt becoming northeast 10 to
15 kt after midnight. Cloudy. Waves 1 to 3 ft.
.MONDAY...East winds 15 to 20 kt increasing to 30 kt in the
afternoon. Snow likely. Waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft in the afternoon. Gale conditions possible
Monday night.

$$

Petr</pre>


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