012
WHUS73 KLOT 120816
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
316 AM CDT THU MAR 12 2026
LMZ742-743-121630-
/O.CAN.KLOT.SC.Y.0029.000000T0000Z-260312T0900Z/
/O.UPG.KLOT.GL.A.0007.260313T0300Z-260314T0000Z/
/O.NEW.KLOT.GL.W.0012.260313T0300Z-260314T0300Z/
NORTHERLY ISLAND TO CALUMET HARBOR IL-
CALUMET HARBOR IL TO GARY IN-
316 AM CDT THU MAR 12 2026
...GALE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM CDT
FRIDAY...
..SMALL CRAFT ADVISORY IS CANCELLED
* WHAT...WEST GALES TO 45 KT AND SIGNIFICANT WAVES TO 8 FT
OCCASIONALLY TO 10 FT EXPECTED. OCCASIONAL STORM FORCE GUSTS TO
50 KT POSSIBLE ON FRIDAY.
* WHERE...NORTHERLY ISLAND TO CALUMET HARBOR IL AND CALUMET
HARBOR IL TO GARY IN.
* WHEN...FROM 10 PM THIS EVENING TO 10 PM CDT FRIDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
LMZ744-745-121630-
/O.CON.KLOT.SC.Y.0029.000000T0000Z-260312T1500Z/
/O.UPG.KLOT.GL.A.0007.260313T0300Z-260314T0000Z/
/O.NEW.KLOT.GL.W.0012.260313T0300Z-260314T0300Z/
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
316 AM CDT THU MAR 12 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
...GALE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM CDT
FRIDAY...
* WHAT...FOR THE SMALL CRAFT ADVISORY, SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT. FOR THE GALE WARNING, SOUTHWEST GALES TO
45 KT AND SIGNIFICANT WAVES TO 11 FT OCCASIONALLY TO 14 FT
EXPECTED. OCCASIONAL STORM FORCE GUSTS TO 50 KT POSSIBLE ON
FRIDAY.
* WHERE...GARY TO MICHIGAN CITY IN.
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 10 AM CDT THIS
MORNING. FOR THE GALE WARNING, FROM 10 PM THIS EVENING TO 10
PM CDT FRIDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
LMZ740-741-121630-
/O.UPG.KLOT.GL.A.0007.260313T0300Z-260314T0000Z/
/O.NEW.KLOT.GL.W.0012.260313T0300Z-260314T0300Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
316 AM CDT THU MAR 12 2026
...GALE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 PM CDT
FRIDAY...
* WHAT...WEST GALES TO 45 KT AND SIGNIFICANT WAVES TO 8 FT
OCCASIONALLY TO 10 FT EXPECTED. OCCASIONAL STORM FORCE GUSTS TO
50 KT POSSIBLE ON FRIDAY.
* WHERE...WINTHROP HARBOR TO NORTHERLY ISLAND IL.
* WHEN...FROM 10 PM THIS EVENING TO 10 PM CDT FRIDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE
VESSEL FOR HAZARDOUS CONDITIONS.
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