863
WHUS73 KLOT 150830
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
330 AM CDT Wed Oct 15 2025

LMZ743>745-151500-
/O.EXT.KLOT.SC.Y.0089.000000T0000Z-251015T1500Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
330 AM CDT Wed Oct 15 2025

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

* WHAT...Significant waves to 6 ft occasionally to 8 ft.

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

* 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.

&&

$$

LMZ740>742-151630-
/O.CON.KLOT.SC.Y.0089.000000T0000Z-251015T1800Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
330 AM CDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

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

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

* WHEN...Until 1 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.

&&

$$