Marine Weather Message
Issued by NWS Chicago, IL

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186
WHUS73 KLOT 281514
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
1014 AM CDT Thu Aug 28 2025

LMZ740>742-282315-
/O.CON.KLOT.SC.Y.0081.250828T2100Z-250829T1800Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
1014 AM CDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 1 PM CDT FRIDAY...

* WHAT...North and northeast winds to 25 kt and significant waves
  to 8 ft occasionally to 10 ft expected.

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

* WHEN...From 4 PM this afternoon 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>745-282315-
/O.CON.KLOT.SC.Y.0081.250828T2100Z-250829T1500Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1014 AM CDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 AM CDT FRIDAY...

* WHAT...North and northeast winds to 25 kt and significant waves
  to 8 ft occasionally to 10 ft expected.

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

* WHEN...From 4 PM this afternoon 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.

&&

$$