521
WHUS73 KLOT 101946
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
246 PM CDT TUE MAR 10 2026
LMZ743-110400-
/O.EXT.KLOT.MF.Y.0003.000000T0000Z-260311T0300Z/
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T0900Z/
CALUMET HARBOR IL TO GARY IN-
246 PM CDT TUE MAR 10 2026
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
4 AM CDT THURSDAY...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN 1 NM AT TIMES. FOR THE SMALL CRAFT
ADVISORY, NORTHWEST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 7 FT
OCCASIONALLY TO 9 FT EXPECTED.
* WHERE...CALUMET HARBOR IL TO GARY IN.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 PM CDT THIS
EVENING. FOR THE SMALL CRAFT ADVISORY, FROM 10 AM WEDNESDAY TO
4 AM CDT THURSDAY.
* 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.
LMZ744-745-110400-
/O.EXT.KLOT.MF.Y.0003.000000T0000Z-260311T0300Z/
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T1500Z/
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
246 PM CDT TUE MAR 10 2026
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
10 AM CDT THURSDAY...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO LESS THAN 1 NM AT TIMES. FOR THE SMALL CRAFT
ADVISORY, NORTHWEST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 10
FT OCCASIONALLY TO 13 FT EXPECTED.
* WHERE...GARY TO MICHIGAN CITY IN.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 PM CDT THIS
EVENING. FOR THE SMALL CRAFT ADVISORY, FROM 10 AM WEDNESDAY TO
10 AM CDT THURSDAY.
* 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.
LMZ740-741-110400-
/O.CON.KLOT.SC.Y.0029.000000T0000Z-260312T0900Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
246 PM CDT TUE MAR 10 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
THURSDAY...
* WHAT...NORTH WINDS TO 30 KT AND SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT.
* WHERE...WINTHROP HARBOR TO NORTHERLY ISLAND IL.
* WHEN...UNTIL 4 AM CDT THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LMZ742-110400-
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T0900Z/
NORTHERLY ISLAND TO CALUMET HARBOR IL-
246 PM CDT TUE MAR 10 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
4 AM CDT THURSDAY...
* WHAT...NORTHWEST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT EXPECTED.
* WHERE...NORTHERLY ISLAND TO CALUMET HARBOR IL.
* WHEN...FROM 10 AM WEDNESDAY TO 4 AM CDT THURSDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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