186
WHUS73 KLOT 200953
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
353 AM CST FRI FEB 20 2026
LMZ740-741-201800-
/O.EXP.KLOT.MF.Y.0001.000000T0000Z-260220T1000Z/
/O.CON.KLOT.SC.Y.0020.000000T0000Z-260220T1200Z/
/O.CON.KLOT.GL.W.0009.260220T1200Z-260221T0000Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
353 AM CST FRI FEB 20 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
...DENSE FOG ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS
MORNING...
* WHAT...FOR THE SMALL CRAFT ADVISORY, SOUTHWEST WINDS TO 30 KT
AND SIGNIFICANT WAVES TO 5 FT. FOR THE GALE WARNING, WEST GALES
TO 45 KT AND SIGNIFICANT WAVES TO 6 FT OCCASIONALLY TO 8 FT
EXPECTED.
* WHERE...WINTHROP HARBOR TO NORTHERLY ISLAND IL.
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 6 AM CST EARLY THIS
MORNING. FOR THE GALE WARNING, UNTIL 6 PM CST THIS EVENING.
* 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.
LMZ742-201800-
/O.EXP.KLOT.MF.Y.0001.000000T0000Z-260220T1000Z/
/O.CON.KLOT.GL.W.0009.000000T0000Z-260221T0000Z/
NORTHERLY ISLAND TO CALUMET HARBOR IL-
353 AM CST FRI FEB 20 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
...DENSE FOG ADVISORY WILL EXPIRE AT 4 AM CST EARLY THIS
MORNING...
* WHAT...WEST GALES TO 45 KT AND SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT.
* WHERE...NORTHERLY ISLAND TO CALUMET HARBOR IL.
* WHEN...UNTIL 6 PM CST THIS EVENING.
* 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.
LMZ743>745-201800-
/O.CON.KLOT.GL.W.0009.000000T0000Z-260221T0000Z/
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
353 AM CST FRI FEB 20 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
* WHAT...WEST GALES TO 45 KT AND SIGNIFICANT WAVES TO 9 FT
OCCASIONALLY TO 12 FT.
* WHERE...CALUMET HARBOR IL TO MICHIGAN CITY IN.
* WHEN...UNTIL 6 PM CST THIS EVENING.
* 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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