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Hurricane Symbol Storm Special! View the latest observations near Atlantic Tropical Storm Isaias.

National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 030819
NSHLOT

NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
319 AM CDT Mon Aug 3 2020

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>742-031645-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
319 AM CDT Mon Aug 3 2020

SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT


TODAY
North winds 20 to 25 kt increasing to 30 kt in the
afternoon. Chance of thunderstorms in the morning. Chance of
showers through the day. Waves 5 to 8 ft occasionally to 10 ft
building to 6 to 9 ft occasionally to 12 ft.

TONIGHT
North winds to 30 kt diminishing to 20 to 25 kt after
midnight. Slight chance of showers through the night. Waves 7 to
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally to
10 ft after midnight.

TUESDAY
North winds 15 to 25 kt. Slight chance of showers in
the morning. Waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 7 ft occasionally to 9 ft in the afternoon.

TUESDAY NIGHT
North winds 10 to 20 kt becoming northwest 5 to
10 kt after midnight. Mostly clear. Waves 4 to 6 ft occasionally
to 8 ft subsiding to 3 to 5 ft after midnight. 



LMZ743>745-031645-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
319 AM CDT Mon Aug 3 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH LATE TUESDAY NIGHT...

TODAY
Southwest winds 10 to 15 kt becoming north to 25 kt by
early afternoon. Chance of showers and thunderstorms. Waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10
ft.

TONIGHT
Northeast winds to 30 kt diminishing to 20 to 25 kt after
midnight. Chance of showers. Waves 7 to 10 ft occasionally to 13
ft subsiding to 5 to 8 ft occasionally to 10 ft after midnight.

TUESDAY
North winds 15 to 25 kt. Slight chance of showers in
the morning. Waves 5 to 8 ft occasionally to 10 ft.

TUESDAY NIGHT
North winds 10 to 20 kt becoming northwest 5 to
10 kt after midnight. Mostly clear. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft after
midnight. 



Carlaw