028
FZUS53 KLOT 082027
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
327 PM CDT Tue Jul 8 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>742-090330-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
327 PM CDT Tue Jul 8 2025

.TONIGHT...Variable winds around 10 kt becoming southwest 5 to 10
kt in the late evening. Scattered showers and slight chance of
thunderstorms in the evening, then isolated showers with a slight
chance of thunderstorms after midnight. Waves around 1 ft.
.WEDNESDAY...Northwest winds around 10 kt becoming north 15 to 20
kt by midday. Mostly cloudy in the morning, then becoming partly
cloudy. Waves around 1 ft building to 2 to 4 ft.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 kt becoming north
10 to 15 kt. Mostly clear. Waves 2 to 4 ft.
.THURSDAY...North winds 10 to 15 kt becoming northeast in the
afternoon. Mostly sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft.

$$

LMZ743>745-090330-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
327 PM CDT Tue Jul 8 2025

.TONIGHT...Variable winds 5 to 10 kt becoming southwest in the
late evening. Scattered showers with isolated thunderstorms.
Waves around 1 ft. Winds and waves locally higher in and near
thunderstorms through the early evening.
.WEDNESDAY...West winds 5 to 10 kt becoming north 15 to 20 kt in
the afternoon. Slight chance of showers in the morning, then
slight chance of showers and thunderstorms in the afternoon. Waves
around 1 ft building to 2 to 4 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 kt becoming north
10 to 15 kt. Partly cloudy in the evening then clearing. Waves
2 to 4 ft.
.THURSDAY...North winds 10 to 15 kt becoming northeast late.
Mostly sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft.

$$

RC