483
WHUS73 KLOT 172020
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
320 PM CDT Sun Aug 17 2025

LMZ740>742-180430-
/O.CON.KLOT.SC.Y.0076.000000T0000Z-250818T1500Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
320 PM CDT Sun Aug 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT
MONDAY...

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

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

* WHEN...Until 10 AM CDT Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$