025
FZUS53 KLOT 161425
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
925 AM CDT Sat Aug 16 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>742-162115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
925 AM CDT Sat Aug 16 2025

.REST OF TODAY...Southwest winds 10 to 15 kt becoming east this
afternoon. Chance of showers and thunderstorms, mainly in the
afternoon. Waves around 1 ft.
.TONIGHT...East winds 10 to 15 kt becoming northwest overnight.
Chance of showers and thunderstorms. Waves around 1 ft.
.SUNDAY...North winds 10 to 15 kt becoming northeast. Slight
chance of showers and thunderstorms in the morning. Waves 1 to
3 ft.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt becoming east
overnight. Slight chance of showers and thunderstorms. Waves 2 to
4 ft.

$$

LMZ743>745-162115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
925 AM CDT Sat Aug 16 2025

.REST OF TODAY...Southwest winds around 10 kt becoming southeast
late. Chance of showers and thunderstorms in the afternoon. Waves
around 1 ft.
.TONIGHT...Southeast winds 5 to 10 kt becoming west overnight.
Chance of showers and thunderstorms. Waves around 1 ft.
.SUNDAY...North winds 5 to 10 kt. Slight chance of showers and
thunderstorms in the morning. Waves 1 to 2 ft.
.SUNDAY NIGHT...Northeast winds around 10 kt becoming east
overnight. Slight chance of showers and thunderstorms overnight.
Waves 1 to 2 ft.

$$

KJB