FZUS53 KLOT 160822
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
322 AM CDT Thu Apr 16 2026

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.

LMZ740-161530-
Winthrop Harbor to Wilmette Harbor IL-
322 AM CDT Thu Apr 16 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING...

.TODAY...South winds 10 to 15 kt becoming west and then northeast
in the afternoon. Areas of dense fog in the morning, then patchy
fog in the afternoon. Scattered showers and slight chance of
thunderstorms. Waves 1 to 2 ft.
.TONIGHT...Northeast winds around 10 kt becoming southeast
overnight. Areas of fog. Waves 1 to 2 ft.
.FRIDAY...Southeast winds 10 to 20 kt increasing to 15 to 25 kt.
Areas of fog in the morning. Waves 1 to 2 ft building to 2 to 4
ft.
.FRIDAY NIGHT...South winds 15 to 25 kt becoming southwest
overnight. Showers with thunderstorms likely in the evening, then
showers and slight chance of thunderstorms overnight. Waves 2 to
4 ft.

$$

LMZ741-742-161530-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
322 AM CDT Thu Apr 16 2026

.TODAY...South winds 10 to 15 kt becoming west and then northeast
in the afternoon. Patchy fog. Scattered showers and slight chance
of thunderstorms. Waves 1 to 2 ft.
.TONIGHT...Northeast winds around 10 kt becoming southeast
overnight. Areas of fog. Waves 1 to 2 ft.
.FRIDAY...Southeast winds 10 to 20 kt becoming south 15 to 25 kt.
Areas of fog in the morning. Waves 1 to 2 ft building to 2 to
4 ft.
.FRIDAY NIGHT...South winds 15 to 25 kt becoming southwest
overnight. Showers with thunderstorms likely in the evening, then
showers and a chance of thunderstorms overnight. Waves 2 to 4 ft.


$$

LMZ743>745-161530-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
322 AM CDT Thu Apr 16 2026

.TODAY...South winds 10 to 15 kt becoming west and then north in
the afternoon. Scattered showers and slight chance of
thunderstorms. Patchy fog in the afternoon. Waves 1 to 3 ft.
.TONIGHT...Northeast winds around 10 kt becoming southeast
overnight. Areas of fog. Waves 1 to 2 ft.
.FRIDAY...Southeast winds 10 to 15 kt becoming south and
increasing to 15 to 25 kt. Areas of fog in the morning. Waves
1 to 3 ft.
.FRIDAY NIGHT...South winds 15 to 25 kt becoming southwest
overnight. Showers and thunderstorms likely in the evening, then
showers and a chance of thunderstorms overnight. Waves 2 to 4 ft.

$$

Petr