National Weather Service Marine Forecast FZUS53 KLOT

FZUS53 KLOT 311958
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
258 PM CDT Fri Mar 31 2023

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>742-010330-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-
258 PM CDT Fri Mar 31 2023

SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING

TORNADO WATCH 96 IN EFFECT UNTIL 10 PM CDT THIS EVENING

...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
SATURDAY EVENING...

TONIGHT
South winds to 30 kt becoming southwest gales to 40
kt gales. Showers and thunderstorms in the evening. Some
thunderstorms may be severe. Waves 4 to 6 ft occasionally to 8 ft.

SATURDAY
West gales to 40 kt becoming northwest gales to 35 kt
in the afternoon. Rain and snow showers likely in the morning and
early afternoon. Waves 4 to 6 ft occasionally to 8 ft building
to 8 to 12 ft occasionally to 16 ft.

SATURDAY NIGHT
North winds 15 to 25 kt becoming east and
diminishing to 5 to 10 kt overnight. Mostly clear. Waves 8 to
12 ft occasionally to 16 ft subsiding to 4 to 7 ft occasionally
to 9 ft.

SUNDAY
South winds 10 to 20 kt increasing to 15 to 25 kt.
Mostly sunny. Waves 3 to 5 ft.


LMZ743>745-010330-
Calumet Harbor to Gary-Gary to Burns Harbor-
Burns Harbor to Michigan City-
258 PM CDT Fri Mar 31 2023

SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING

TORNADO WATCH 96 IN EFFECT UNTIL 10 PM CDT THIS EVENING

...GALE WARNING IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH
SATURDAY EVENING...

TONIGHT
South winds to 30 kt becoming southwest gales to 45 kt.
Showers and thunderstorms in the evening, then a chance of
showers and isolated thunderstorms after midnight. Some
thunderstorms may be severe in the evening. Waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft.

SATURDAY
West gales to 40 kt becoming northwest in the
afternoon. Rain and snow showers likely in the morning and early
afternoon. Waves 5 to 8 ft occasionally to 10 ft building to 12
to 16 ft occasionally to 21 ft.

SATURDAY NIGHT
North winds to 30 kt becoming northeast and
diminishing to 10 to 15 kt overnight. Partly cloudy. Waves 12 to
16 ft occasionally to 21 ft subsiding to 5 to 8 ft occasionally to
10 ft.

SUNDAY
South winds 10 to 15 kt increasing to 15 to 20 kt.
Sunny. Waves 3 to 5 ft subsiding to 1 to 3 ft.


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