403
WHUS73 KLOT 200718
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
118 AM CST FRI FEB 20 2026
LMZ740-741-201530-
/O.NEW.KLOT.MF.Y.0001.260220T0718Z-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-
118 AM CST FRI FEB 20 2026
...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CST EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 6 PM
CST THIS EVENING...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN 1 NM. FOR THE SMALL CRAFT ADVISORY,
SOUTH 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 DENSE FOG ADVISORY, UNTIL 4 AM CST EARLY THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, UNTIL 6 AM CST EARLY
THIS MORNING. FOR THE GALE WARNING, FROM 6 AM THIS MORNING TO
6 PM CST THIS EVENING.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY. LOW VISIBILITY
WILL MAKE NAVIGATION DIFFICULT.
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.
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.
LMZ742-201530-
/O.NEW.KLOT.MF.Y.0001.260220T0718Z-260220T1000Z/
/O.CON.KLOT.GL.W.0009.260220T0800Z-260221T0000Z/
NORTHERLY ISLAND TO CALUMET HARBOR IL-
118 AM CST FRI FEB 20 2026
...DENSE FOG ADVISORY IN EFFECT UNTIL 4 AM CST EARLY THIS
MORNING...
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN 1 NM. FOR THE GALE WARNING, SOUTHWEST
GALES TO 45 KT AND SIGNIFICANT WAVES TO 6 FT OCCASIONALLY TO 8
FT EXPECTED.
* WHERE...NORTHERLY ISLAND TO CALUMET HARBOR IL.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 4 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. LOW VISIBILITY
WILL MAKE NAVIGATION DIFFICULT.
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.
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>745-201530-
/O.CON.KLOT.GL.W.0009.260220T0800Z-260221T0000Z/
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
118 AM CST FRI FEB 20 2026
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING
* WHAT...SOUTHWEST GALES TO 45 KT AND SIGNIFICANT WAVES TO 9 FT
OCCASIONALLY TO 12 FT EXPECTED.
* 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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