Marine Weather Message
Issued by NWS Chicago, IL

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618
WHUS73 KLOT 310958
MWWLOT

URGENT - MARINE WEATHER MESSAGE
National Weather Service Chicago IL
358 AM CST Fri Jan 31 2025

LMZ740-311800-
/O.CON.KLOT.MF.Y.0001.000000T0000Z-250131T1500Z/
/O.NEW.KLOT.SC.Y.0012.250131T1800Z-250202T0900Z/
Winthrop Harbor to Wilmette Harbor IL-
358 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 3 AM CST
SUNDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  north northeast winds to 30 kt and significant waves to 9 ft
  occasionally to 12 ft expected.

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

* WHEN...For the Dense Fog Advisory, until 9 AM CST this
  morning. For the Small Craft Advisory, from noon today to 3 AM
  CST Sunday.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LMZ741-742-311800-
/O.CON.KLOT.MF.Y.0001.000000T0000Z-250131T1500Z/
/O.NEW.KLOT.SC.Y.0012.250131T1800Z-250201T1500Z/
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
358 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 9 AM CST
SATURDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  north northeast winds to 30 kt and significant waves to 9 ft
  occasionally to 12 ft expected.

* WHERE...Wilmette Harbor to Calumet Harbor IL.

* WHEN...For the Dense Fog Advisory, until 9 AM CST this
  morning. For the Small Craft Advisory, from noon today to 9 AM
  CST Saturday.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$

LMZ743>745-311800-
/O.EXA.KLOT.MF.Y.0001.000000T0000Z-250131T1500Z/
/O.NEW.KLOT.SC.Y.0012.250131T1800Z-250201T1500Z/
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
358 AM CST Fri Jan 31 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 9 AM CST
SATURDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce
  visibility to less than 1 NM. For the Small Craft Advisory,
  north winds to 30 kt and significant waves to 8 ft occasionally
  to 10 ft expected.

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

* WHEN...For the Dense Fog Advisory, until 9 AM CST this
  morning. For the Small Craft Advisory, from noon today to 9 AM
  CST Saturday.

* IMPACTS...Conditions will be hazardous to small craft. Low
  visibility will make navigation difficult.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.

&&

$$