FZUS53 KLOT 121542

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

942 AM CST Fri Dec 12 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>743-122215-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

Calumet Harbor IL to Gary IN-

942 AM CST Fri Dec 12 2025



...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING

THROUGH SUNDAY MORNING...



.REST OF TODAY...West winds 5 to 10 kt becoming west 15 to 20 kt.

Becoming mostly cloudy. Waves 1 to 2 ft.

.TONIGHT...West winds 15 to 25 kt becoming northwest 20 to 25 kt

by late evening. A chance of flurries in the evening. Waves 2 to 

4 ft building to 3 to 5 ft.

.SATURDAY...Northwest winds 20 to 25 kt. Chance of snow. Waves 3 

to 5 ft subsiding to 2 to 4 ft. 

.SATURDAY NIGHT...Northwest winds 20 to 25 kt. Slight chance of

snow showers. Waves 3 to 6 ft. 



$$



LMZ744-745-122215-

Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-

942 AM CST Fri Dec 12 2025



...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM CST THIS EVENING

THROUGH SUNDAY EVENING...



.REST OF TODAY...Southwest winds around 5 kt becoming west 10 to

15 kt. Becoming mostly cloudy. Waves 1 to 2 ft.

.TONIGHT...West winds 15 to 25 kt increasing to 30 kt by mid

evening, then becoming northwest overnight. Slight chance of snow

showers. Waves 3 to 5 ft building to 5 to 8 ft occasionally to 10

ft. 

.SATURDAY...Northwest winds 20 to 25 kt. Freezing spray. Chance

of snow in the morning, then snow likely in the afternoon. Waves

5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft

occasionally to 9 ft. 

.SATURDAY NIGHT...Northwest winds to 30 kt. Freezing spray.

Chance of snow showers in the evening, then snow showers likely

overnight. Waves 6 to 9 ft occasionally to 12 ft building to 7 to

10 ft occasionally to 13 ft.  



$$



Ratzer