870
FZUS53 KLOT 172036
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
336 PM CDT Tue Jun 17 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>745-180400-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
336 PM CDT Tue Jun 17 2025

.TONIGHT...Southwest winds 10 to 15 kt becoming south 5 to 10 kt.
Chance of showers and thunderstorms, mainly after midnight. Waves
1 ft or less.
.WEDNESDAY...South winds 10 to 20 kt. Showers and thunderstorms
likely. Waves around 1 ft building to 1 to 3 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt becoming northwest
overnight. Chance of showers and slight chance of thunderstorms
in the evening, then slight chance of showers overnight. Waves
1 to 3 ft building to 2 to 4 ft.
.THURSDAY...Northwest winds 10 to 15 kt. Partly cloudy in the
morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft.

$$

- Izzi