WHUS73 KLOT 070838

MWWLOT



URGENT - MARINE WEATHER MESSAGE

National Weather Service Chicago IL

338 AM CDT Mon Apr 7 2025



LMZ740>742-071645-

/O.CON.KLOT.GL.W.0014.250407T1400Z-250407T2100Z/

/O.CON.KLOT.SC.Y.0044.250407T2100Z-250408T1200Z/

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 REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 4 PM

CDT THIS AFTERNOON...

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS

AFTERNOON TO 7 AM CDT TUESDAY...



* WHAT...For the Gale Warning, north gales to 40 kt and 

  significant waves to 10 ft occasionally to 13 ft expected. For 

  the Small Craft Advisory, north winds to 30 kt and significant 

  waves to 10 ft occasionally to 13 ft expected.



* WHERE...Winthrop Harbor to Calumet Harbor IL.



* WHEN...For the Gale Warning, from 9 AM this morning to 4 PM 

  CDT this afternoon. For the Small Craft Advisory, from 4 PM 

  this afternoon to 7 AM CDT Tuesday.



* IMPACTS...Strong winds will cause hazardous waves which could 

  capsize or damage vessels and reduce visibility.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Mariners should alter plans to avoid these hazardous conditions.

Remain in port, seek safe harbor, alter course, and/or secure the

vessel for hazardous conditions.



&&



$$



LMZ743>745-071645-

/O.CON.KLOT.GL.W.0014.250407T1400Z-250408T0000Z/

/O.CON.KLOT.SC.Y.0044.250408T0000Z-250408T2100Z/

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 REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM

CDT THIS EVENING...

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING

TO 4 PM CDT TUESDAY...



* WHAT...For the Gale Warning, north gales to 40 kt and 

  significant waves to 14 ft occasionally to 18 ft expected. For 

  the Small Craft Advisory, north winds to 30 kt and significant 

  waves to 12 ft occasionally to 16 ft expected.



* WHERE...Calumet Harbor IL to Michigan City IN.



* WHEN...For the Gale Warning, from 9 AM this morning to 7 PM 

  CDT this evening. For the Small Craft Advisory, from 7 PM this 

  evening to 4 PM CDT Tuesday.



* IMPACTS...Strong winds will cause hazardous waves which could 

  capsize or damage vessels and reduce visibility.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Mariners should alter plans to avoid these hazardous conditions.

Remain in port, seek safe harbor, alter course, and/or secure the

vessel for hazardous conditions.



&&



$$