WHUS73 KLOT 270847

MWWLOT



URGENT - MARINE WEATHER MESSAGE

National Weather Service Chicago IL

347 AM CDT Mon Oct 27 2025



LMZ740-271700-

/O.EXT.KLOT.SC.Y.0094.000000T0000Z-251029T1200Z/

Winthrop Harbor to Wilmette Harbor IL-

347 AM CDT Mon Oct 27 2025



...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM CDT WEDNESDAY...



* WHAT...East winds to 30 kt and significant waves to 10 ft

  occasionally to 13 ft expected.



* WHERE...Winthrop Harbor to Wilmette Harbor IL.



* WHEN...Until 7 AM CDT Wednesday.



* IMPACTS...Conditions will be hazardous to small craft.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$



LMZ741-742-271700-

/O.EXT.KLOT.SC.Y.0094.000000T0000Z-251029T1200Z/

Wilmette Harbor to Northerly Island IL-

Northerly Island to Calumet Harbor IL-

347 AM CDT Mon Oct 27 2025



...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM CDT WEDNESDAY...



* WHAT...East winds to 25 kt and significant waves to 9 ft 

  occasionally to 12 ft expected.



* WHERE...Wilmette Harbor to Calumet Harbor IL.



* WHEN...Until 7 AM CDT Wednesday.



* IMPACTS...Conditions will be hazardous to small craft.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$