Nearshore Marine Forecast
Issued by NWS Chicago, IL

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FZUS53 KLOT 221235
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
635 AM CST Mon Jan 22 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>742-221615-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
635 AM CST Mon Jan 22 2018

.TODAY...East winds 10 to 20 kt becoming southeast 15 to 25 kt
this morning and then south 10 to 20 kt in the afternoon. Areas
of fog through the day. Showers with a chance of thunderstorms
through mid morning, chance of showers and thunderstorms in the
mid to late afternoon. Waves 1 to 3 ft building to 3 to 5 ft in
the late morning and early afternoon, then subsiding to 2 to 4 ft
late in the afternoon.
.TONIGHT...South winds 10 to 15 kt becoming southwest in the
evening and then west 10 to 20 kt after midnight. Areas of fog in
the evening. Chance of showers and slight chance of thunderstorms
in the evening, then rain and snow likely after midnight. Waves 1
to 3 ft.
.TUESDAY...Northwest winds to 30 kt easing to 20 to 25 kt in the
afternoon. Snow likely in the morning. Waves 2 to 4 ft building to
4 to 7 ft occasionally to 9 ft.
.TUESDAY NIGHT...Northwest winds 10 to 20 kt. Mostly cloudy.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft after
midnight.

$$

LMZ743>745-221615-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
635 AM CST Mon Jan 22 2018

.TODAY...Southeast winds 10 to 20 kt becoming south 15 to 25 kt
in the late morning and afternoon. Areas of fog through the day.
Showers with a chance of thunderstorms through mid morning,
chance of showers and thunderstorms in the mid to late afternoon.
Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 15 kt becoming southwest. Areas of
fog in the evening. Chance of showers and slight chance of
thunderstorms in the evening, then chance of rain after midnight.
Waves 1 to 3 ft.
.TUESDAY...Northwest winds to 30 kt with a few gale force gusts to
35 kt in the late morning and early afternoon. Chance of snow and
rain likely in the morning, then slight chance of snow showers in
the afternoon. Waves 3 to 5 ft building to 6 to 9 ft occasionally
to 12 ft in the afternoon.
.TUESDAY NIGHT...Northwest winds 15 to 25 kt diminishing to 10 to
15 kt after midnight. Slight chance of snow showers in the
evening. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft after midnight.

$$

RC


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