831
WHUS73 KLOT 110240
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
840 PM CST Mon Nov 10 2025

LMZ740>742-111045-
/O.EXT.KLOT.SC.Y.0099.000000T0000Z-251111T0900Z/
/O.CON.KLOT.SC.Y.0100.251111T1500Z-251113T0300Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
840 PM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM CST TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM TUESDAY TO
9 PM CST WEDNESDAY...

* WHAT...For the first Small Craft Advisory, west winds to 25 kt
  and significant waves to 6 ft occasionally to 8 ft. For the
  second Small Craft Advisory, west winds to 30 kt and
  significant waves to 5 ft expected.

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

* WHEN...For the first Small Craft Advisory, until 3 AM CST
  Tuesday. For the second Small Craft Advisory, from 9 AM
  Tuesday to 9 PM CST Wednesday.

* 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>745-111045-
/O.CON.KLOT.SC.Y.0099.000000T0000Z-251113T0900Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
840 PM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
THURSDAY...

* WHAT...Winds to 30 kt and significant waves to 10 ft
  occasionally to 13 ft.

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

* WHEN...Until 3 AM CST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$