463
WHUS73 KLOT 271938
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
238 PM CDT Wed Aug 27 2025

LMZ740>742-280345-
/O.NEW.KLOT.SC.Y.0081.250828T2100Z-250829T1800Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
238 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THURSDAY TO 1 PM CDT
FRIDAY...

* WHAT...Northeast winds to 25 kt and significant waves to 7 ft
  occasionally to 9 ft expected.

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

* WHEN...From 4 PM Thursday to 1 PM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LMZ743>745-280345-
/O.NEW.KLOT.SC.Y.0081.250828T2100Z-250829T1500Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
238 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THURSDAY TO 10 AM CDT
FRIDAY...

* WHAT...Northeast winds to 25 kt and significant waves to 7 ft
  occasionally to 9 ft expected.

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

* WHEN...From 4 PM Thursday to 10 AM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$