283
WHUS73 KLOT 020925
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
325 AM CST Tue Dec 2 2025

LMZ740>742-021730-
/O.NEW.KLOT.SC.Y.0106.251203T0600Z-251204T1500Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
325 AM CST Tue Dec 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
CST THURSDAY...

* WHAT...Southwest winds to 25 kt Wednesday morning shifting
  northwest to 25 kt Wednesday afternoon. Significant waves to 4
  ft Wednesday and significant waves to 6 ft occasionally to 8 ft
  Wednesday night expected.

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

* WHEN...From midnight tonight to 9 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.

&&

$$

LMZ743>745-021730-
/O.NEW.KLOT.SC.Y.0106.251203T0600Z-251204T2100Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
325 AM CST Tue Dec 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
CST THURSDAY...

* WHAT...Southwest winds to 25 kt Wednesday morning shifting
  northwest to 30 kt Wednesday afternoon. Significant waves to 5
  ft Wednesday and significant waves to 9 ft occasionally to 12 ft
  Wednesday night and Thursday expected.

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

* WHEN...From midnight tonight to 3 PM 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.

&&

$$