772
FZUS53 KLOT 310954
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
354 AM CST Fri Jan 31 2025

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.

LMZ740-312215-
Winthrop Harbor to Wilmette Harbor IL-
354 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CST TODAY THROUGH
LATE SATURDAY NIGHT...

.EARLY THIS MORNING...East winds 5 to 10 kt. Widespread dense
fog. Chance of rain. Waves 1 ft or less.
.TODAY...Northeast winds 15 to 20 kt becoming north and increasing
to 30 kt this afternoon. Areas of dense fog in the morning, then
patchy fog in the afternoon. Rain in the morning, then chance of
rain and slight chance of snow in the afternoon. Waves 1 to 2 ft
building to 5 to 8 ft occasionally to 10 ft.
.TONIGHT...North winds to 30 kt becoming northeast and
diminishing to 15 to 20 kt. 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.
.SATURDAY...East winds 15 to 20 kt becoming southeast in the
afternoon. Mostly cloudy. Waves 3 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...Southeast winds 15 to 25 kt becoming south 15
to 20 kt. Slight chance of snow in the evening, then chance of
snow and rain overnight. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft late.


$$

LMZ741-742-312215-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
354 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CST TODAY THROUGH
SATURDAY MORNING...

.EARLY THIS MORNING...East winds 5 to 10 kt. Widespread dense
fog. Chance of rain. Waves 1 ft or less.
.TODAY...Northeast winds 15 to 20 kt becoming north and
increasing to 30 kt this afternoon. Areas of dense fog in the
morning, then patchy fog in the afternoon. Rain and slight chance
of thunderstorms in the morning, then rain and slight chance of
snow in the afternoon. Waves 1 to 2 ft building to 5 to 8 ft
occasionally to 10 ft.
.TONIGHT...North winds to 30 kt. Partly cloudy. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.SATURDAY...East winds 15 to 20 kt becoming southeast in the
afternoon. Mostly cloudy. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.
.SATURDAY NIGHT...Southeast winds 15 to 25 kt becoming south 15
to 20 kt. Chance of snow and rain overnight. Waves 2 to 4 ft.

$$

LMZ743>745-312215-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
354 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON CST TODAY THROUGH
SATURDAY MORNING...

.EARLY THIS MORNING...East winds 5 to 10 kt. Widespread dense
fog. Chance of rain. Waves 1 ft or less.
.TODAY...Northeast winds 10 to 20 kt becoming north and
increasing to 30 kt this afternoon. Areas of dense fog in the
morning, then patchy fog in the afternoon. Rain and slight chance
of thunderstorms in the morning, then rain and slight chance of
snow in the afternoon. Waves 1 to 2 ft building to 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...North winds to 30 kt. Mostly cloudy in the evening,
then becoming partly cloudy. Waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...East winds 10 to 20 kt becoming southeast in the
afternoon. Partly cloudy in the morning, then becoming mostly
cloudy. Waves 3 to 6 ft occasionally to 8 ft subsiding to 2 to 4
ft.
.SATURDAY NIGHT...Southeast winds 15 to 20 kt becoming south.
Chance of snow and rain overnight. Waves 1 to 3 ft.

$$

KJB