WHUS73 KLOT 170824
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
324 AM CDT Sat Oct 17 2026

LMZ740>742-171500-
/O.CON.KLOT.SC.Y.0090.000000T0000Z-261017T1500Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
324 AM CDT Sat Oct 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Winds to 25 kt and significant waves to 9 ft 
  occasionally to 12 ft.

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

* WHEN...Until 10 AM CDT this morning.

* 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>745-171630-
/O.CON.KLOT.SC.Y.0090.000000T0000Z-261017T2000Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
324 AM CDT Sat Oct 17 2026

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CDT THIS
AFTERNOON...

* WHAT...Winds to 25 kt and significant waves to 12 ft 
  occasionally to 16 ft.

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

* WHEN...Until 3 PM CDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$