457
FZUS53 KLOT 121421
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
921 AM CDT Sun May 12 2024

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>742-122115-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
921 AM CDT Sun May 12 2024

.REST OF TODAY...South winds 10 to 15 kt becoming southwest and
increasing to 15 to 25 kt. Mostly sunny. Waves 1 to 3 ft.
.TONIGHT...Southwest winds 15 to 20 kt diminishing to 10 to
15 kt. Slight chance of showers and thunderstorms. Waves 1 to
3 ft.
.MONDAY...Southwest winds 5 to 10 kt becoming south in the
afternoon. Slight chance of showers in the morning, then showers
likely and a chance of thunderstorms in the afternoon. Waves 1 to
2 ft.
.MONDAY NIGHT...Northeast winds 5 to 10 kt increasing to 10 to
15 kt overnight. Showers likely and a chance of thunderstorms in
the evening, then chance of showers overnight. Waves 1 to 3 ft
increasing to 2 to 4 ft late.

$$

LMZ743>745-122115-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
921 AM CDT Sun May 12 2024

.REST OF TODAY...South winds 10 to 15 kt becoming southwest and
increasing to 15 to 20 kt. Mostly sunny. Waves 1 to 2 ft.
.TONIGHT...Southwest winds 10 to 20 kt. Slight chance of showers.
Waves 1 to 2 ft.
.MONDAY...Southwest winds 10 to 15 kt. Slight chance of showers
in the morning, then showers likely and slight chance of
thunderstorms in the afternoon. Waves 1 to 2 ft.
.MONDAY NIGHT...Southeast winds 5 to 10 kt becoming northeast
overnight. Showers and a chance of thunderstorms in the evening,
then chance of showers overnight. Waves around 1 ft.

$$

KJB