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853 
WHUS73 KLOT 190846
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
246 AM CST Sun Jan 19 2025

LMZ744-745-191800-
/O.CON.KLOT.SC.Y.0005.000000T0000Z-250121T0400Z/
/O.CON.KLOT.UP.W.0001.250119T1800Z-250120T1000Z/
Gary to Burns Harbor IN-Burns Harbor to Michigan City IN-
246 AM CST Sun Jan 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CST
MONDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM NOON TODAY
TO 4 AM CST MONDAY...

* WHAT...For the Small Craft Advisory, west winds to 25 kt and 
  significant waves to 7 ft occasionally to 9 ft. For the Heavy 
  Freezing Spray Warning, heavy freezing spray at a rate of 2 cm 
  per hour or greater expected, and may rapidly accumulate on 
  vessels.

* WHERE...Gary to Michigan City IN.

* WHEN...For the Small Craft Advisory, until 10 PM CST Monday. 
  For the Heavy Freezing Spray Warning, from noon today to 4 AM 
  CST Monday.

* IMPACTS...Operating a vessel in heavy freezing spray is 
  hazardous. Freezing spray may render mechanical and electronic 
  components inoperative. Rapid ice accretion on decks and 
  superstructures may result in a catastrophic loss of 
  stability. Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for dangerous accumulation of ice on
their vessel. If possible, remain in port, avoid the warning area
or conduct mitigation.

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

&&

$$

LMZ740>743-191800-
/O.CON.KLOT.SC.Y.0005.000000T0000Z-250120T1000Z/
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-
246 AM CST Sun Jan 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CST MONDAY...

* WHAT...Northwest winds to 25 kt and significant waves to 6 
  occasionally to 8 ft.

* WHERE...Winthrop Harbor to Calumet Harbor IL, and Calumet 
  Harbor IL to Gary IN.

* WHEN...Until 4 AM CST 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.

&&

$$