FZUS53 KLOT 122110

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

310 PM 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>743-130445-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

Calumet Harbor IL to Gary IN-

310 PM CST Fri Dec 12 2025



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

THROUGH SUNDAY MORNING...



.TONIGHT...West winds around 15 kt quickly increasing to 15 to 25

kt early, then becoming northwest 20 to 25 kt late this evening. 

A chance of flurries in the evening. Waves 1 to 3 ft building to 3

to 5 ft.

.SATURDAY...Northwest winds 20 to 25 kt. Slight chance of snow in

the morning, then snow likely in the afternoon. Waves 3 to 6 ft

occasionally to 8 ft.

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

snow. Waves 3 to 6 ft occasionally to 8 ft. 

.SUNDAY...Northwest winds 20 to 25 kt becoming west 15 to 25 kt. 

Partly cloudy in the morning then clearing. Waves 3 to 6 ft 

occasionally to 8 ft subsiding to 3 to 5 ft. 



$$



LMZ744-745-130445-

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

310 PM CST Fri Dec 12 2025



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

THROUGH SUNDAY EVENING...



.TONIGHT...Southwest winds 10 to 15 kt becoming west and quickly

increasing to 15 to 25 kt early this evening, then becoming 

northwest to 30 kt late. A chance of flurries in the evening, then

slight chance of snow after midnight. Waves 1 to 3 ft building to

4 to 7 ft occasionally to 9 ft. 

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

of snow in the morning, then snow likely in the afternoon. Waves 4

to 7 ft occasionally to 9 ft. 

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

Chance of snow. Waves 6 to 9 ft occasionally to 12 ft building to 

8 to 11 ft occasionally to 14 ft. 

.SUNDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt. 

Slight chance of snow in the morning. Freezing spray. Waves 8 to 

11 ft occasionally to 14 ft subsiding to 6 to 9 ft occasionally to

12 ft. 



$$



DK