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446
WHUS73 KLOT 191421
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
921 AM CDT Sat Sep 19 2026

LMZ740-741-192000-
/O.CON.KLOT.SC.Y.0082.000000T0000Z-260919T2000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
921 AM CDT Sat Sep 19 2026

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

* WHAT...Southeast winds to 20 kt and significant waves to 6 ft
  occasionally to 8 ft.

* WHERE...Winthrop Harbor to Northerly Island IL.

* 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.

&&

$$