FZUS53 KLOT 070838

NSHLOT



Nearshore Marine Forecast

National Weather Service Chicago/Romeoville IL

338 AM CDT Mon Apr 7 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>742-071530-

Winthrop Harbor to Wilmette Harbor IL-

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

338 AM CDT Mon Apr 7 2025



...GALE WARNING IN EFFECT FROM 9 AM CDT THIS MORNING THROUGH THIS

AFTERNOON...

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH

TUESDAY MORNING...



.TODAY...Southwest winds 15 to 25 kt becoming north and 

increasing to 40 kt gales by mid morning then diminishing to 30 

kt late in the afternoon. Isolated snow showers in the morning, 

then scattered snow showers in the afternoon. Waves 2 to 4 ft 

building to 7 to 10 ft occasionally to 13 ft. 

.TONIGHT...North winds to 30 kt diminishing to 15 to 25 kt.

Scattered snow showers in the evening. Waves 7 to 10 ft

occasionally to 13 ft subsiding to 4 to 7 ft occasionally to

9 ft. 

.TUESDAY...Northwest winds 10 to 20 kt becoming northeast and

diminishing to around 10 kt in the afternoon. Mostly sunny. Waves

3 to 5 ft subsiding to 2 to 4 ft. 

.TUESDAY NIGHT...Southeast winds 10 to 15 kt becoming south.

Slight chance of rain and snow overnight. Waves 1 to 3 ft.  



$$



LMZ743>745-071530-

Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-

Burns Harbor to Michigan City IN-

338 AM CDT Mon Apr 7 2025



...GALE WARNING IN EFFECT FROM 9 AM CDT THIS MORNING THROUGH THIS

EVENING...

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

TUESDAY AFTERNOON...



.TODAY...Southwest winds 15 to 25 kt becoming north and 

increasing to 40 kt gales by mid to late morning. Isolated rain 

and snow showers in the morning, then scattered snow showers in 

the afternoon. Waves 3 to 5 ft building to 10 to 14 ft 

occasionally to 18 ft. 

.TONIGHT...North gales to 35 kt diminishing to 15 to 25 kt. 

Scattered snow showers in the evening, then a few flurries 

overnight. Waves 8 to 12 ft occasionally to 16 ft subsiding to 6 

to 9 ft occasionally to 12 ft. 

.TUESDAY...Northwest winds 10 to 20 kt becoming north 10 to 15 kt

in the afternoon. Mostly cloudy in the morning then clearing.

Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 

.TUESDAY NIGHT...Southeast winds 10 to 15 kt. Partly cloudy in

the evening, then becoming mostly cloudy. Waves 1 to 3 ft.  



$$



Carlaw