WHUS73 KLOT 150815
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
315 AM CDT Thu Oct 15 2026

LMZ740>742-151615-
/O.EXT.KLOT.SC.Y.0089.000000T0000Z-261016T1800Z/
/O.UPG.KLOT.GL.A.0011.261016T1800Z-261017T0600Z/
/O.NEW.KLOT.GL.W.0021.261016T1800Z-261017T0600Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
315 AM CDT Thu Oct 15 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT FRIDAY...
...GALE WARNING IN EFFECT FROM 1 PM FRIDAY TO 1 AM CDT SATURDAY...

* WHAT...For the Small Craft Advisory, west winds to 30 kt with a
  few gale force gusts to 35 kt expected. For the Gale Warning,
  northerly gales to 40 kt and significant waves to 14 ft
  occasionally to 18 ft expected.

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

* WHEN...For the Small Craft Advisory, until 1 PM CDT Friday. 
  For the Gale Warning, from 1 PM Friday to 1 AM CDT Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Locally higher winds may occur near lake
  effect rain showers Friday afternoon. 

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>745-151615-
/O.EXT.KLOT.SC.Y.0089.000000T0000Z-261016T1800Z/
/O.UPG.KLOT.GL.A.0011.261016T1800Z-261017T0600Z/
/O.NEW.KLOT.GL.W.0021.261016T1800Z-261017T0600Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
315 AM CDT Thu Oct 15 2026

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM CDT FRIDAY...
...GALE WARNING IN EFFECT FROM 1 PM FRIDAY TO 1 AM CDT SATURDAY...

* WHAT...For the Small Craft Advisory, west winds to 30 kt with a
  few gale force gusts to 35 kt expected. For the Gale Warning,
  northerly gales to 40 kt and significant waves to 16 ft 
  occasionally to 21 ft expected.

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

* WHEN...For the Small Craft Advisory, until 1 PM CDT Friday. 
  For the Gale Warning, from 1 PM Friday to 1 AM CDT Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...Locally higher winds may occur near lake
  effect rain showers Friday afternoon. 

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.

&&

$$