Nearshore Marine Forecast
Issued by NWS Chicago, IL

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596
FZUS53 KLOT 290359
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
959 PM CST Fri Nov 28 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>742-291015-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
959 PM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM CST SATURDAY THROUGH
SUNDAY EVENING...

.REST OF TONIGHT...Southwest winds 5 to 10 kt becoming south
10 to 15 kt late. Chance of snow after midnight. Waves 1 to 3 ft.
.SATURDAY...South winds 15 to 25 kt becoming southeast to 30 kt.
Snow. Waves 3 to 5 ft building to 6 to 9 ft occasionally to
12 ft.
.SATURDAY NIGHT...Southeast winds to 30 kt becoming west overnight.
Snow and slight chance of rain. Waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.SUNDAY...Northwest winds to 30 kt. Snow likely in the morning,
then chance of snow showers in the afternoon. Waves 4 to 7 ft
occasionally to 9 ft.

$$

LMZ743>745-291015-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
959 PM CST Fri Nov 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM CST SATURDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...Southwest winds 5 to 10 kt becoming south
10 to 15 kt late. Chance of snow after midnight. Waves 2 to 4 ft.
.SATURDAY...Southeast winds 15 to 25 kt increasing to 30 kt.
Snow. Waves 2 to 4 ft building to 3 to 5 ft.
.SATURDAY NIGHT...Southeast winds to 30 kt becoming west overnight.
Snow and slight chance of rain in the evening, then snow and a
chance of rain overnight. Waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft.
.SUNDAY...Northwest winds to 30 kt. A few 35 kt gales possible.
Snow and slight chance of rain in the morning, then snow showers
likely in the afternoon. Waves 7 to 10 ft occasionally to 13 ft
building to 8 to 11 ft occasionally to 14 ft.

$$

Petr