163
WHUS73 KLOT 050339
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
939 PM CST Thu Dec 4 2025

LMZ740-051145-
/O.CON.KLOT.SC.Y.0108.251205T0600Z-251206T0600Z/
Winthrop Harbor to Wilmette Harbor IL-
939 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST
FRIDAY NIGHT...

* WHAT...Southwest winds to 25 kt expected.

* WHERE...Winthrop Harbor to Wilmette Harbor IL.

* WHEN...From midnight tonight to midnight CST Friday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LMZ741>745-051145-
/O.CON.KLOT.SC.Y.0108.251205T1800Z-251206T0600Z/
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
939 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
MIDNIGHT CST FRIDAY NIGHT...

* WHAT...Southwest winds to 25 kt expected.

* WHERE...Calumet Harbor IL to Michigan City IN, and Wilmette
  Harbor to Calumet Harbor IL.

* WHEN...From noon Friday to midnight CST Friday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$