881
FZUS53 KLOT 301546
NSHLOT

Nearshore Marine Forecast
National Weather Service Chicago/Romeoville IL
946 AM CST Sun Nov 30 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>742-302230-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
946 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...Northwest winds to 30 kt diminishing to 20 to 25
kt late in the afternoon. Chance of snow late in the morning,
then a chance of flurries in the afternoon. Waves 4 to 6 ft
occasionally to 8 ft.
.TONIGHT...Northwest winds 15 to 25 kt diminishing to 10 to 15
kt. Partly cloudy. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft.
.MONDAY...West winds around 10 kt becoming southwest in the
afternoon. Snow in the afternoon. Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt becoming west
overnight. Snow in the evening, then chance of snow overnight.
Waves 1 to 2 ft.

$$

LMZ743>745-302230-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
946 AM CST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TODAY...Northwest winds to 30 kt. Occasional gale force
gusts to 35 kt this morning. Snow late in the morning, then
chance of snow in the afternoon. Waves 6 to 9 ft occasionally to
12 ft building to 8 to 11 ft occasionally to 14 ft.
.TONIGHT...Northwest winds 15 to 25 kt diminishing to 10 to 15
kt. Slight chance of snow in the evening. Waves 7 to 10 ft
occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9
ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south in the
afternoon. Snow in the afternoon. Waves 2 to 4 ft subsiding to
1 to 3 ft.
.MONDAY NIGHT...South winds 10 to 15 kt becoming west overnight.
Snow in the evening, then chance of snow overnight. Waves 1 to
3 ft.

$$