351
WHUS73 KLOT 101525
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
1025 AM CDT TUE MAR 10 2026
LMZ743-102330-
/O.NEW.KLOT.MF.Y.0003.260310T1525Z-260310T2100Z/
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T0900Z/
CALUMET HARBOR IL TO GARY IN-
1025 AM CDT TUE MAR 10 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
...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 BELOW 1 NM. FOR THE SMALL CRAFT ADVISORY, NORTH
TO NORTHWEST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 8 FT
OCCASIONALLY TO 10 FT EXPECTED.
* WHERE...CALUMET HARBOR IL TO GARY IN.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 4 PM CDT THIS
AFTERNOON. 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.
LMZ744-745-102330-
/O.NEW.KLOT.MF.Y.0003.260310T1525Z-260310T2100Z/
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T1500Z/
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
1025 AM CDT TUE MAR 10 2026
..DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON
...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 BELOW 1 NM. FOR THE SMALL CRAFT ADVISORY,
NORTHWEST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 11 FT
OCCASIONALLY TO 14 FT EXPECTED.
* WHERE...GARY TO MICHIGAN CITY IN.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 4 PM CDT THIS
AFTERNOON. 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.
LMZ740-741-102330-
/O.CON.KLOT.SC.Y.0029.000000T0000Z-260312T0900Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
1025 AM CDT TUE MAR 10 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT
THURSDAY...
* WHAT...NORTH WINDS TO 25 KT AND SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT EXPECTED TODAY. NORTH TO NORTHWEST WINDS
TO 30 KT AND SIGNIFICANT WAVES TO 8 OCCASIONALLY TO 10 FT
WEDNESDAY AND WEDNESDAY NIGHT.
* 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.
LMZ742-102330-
/O.CON.KLOT.SC.Y.0029.260311T1500Z-260312T0900Z/
NORTHERLY ISLAND TO CALUMET HARBOR IL-
1025 AM CDT TUE MAR 10 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
4 AM CDT THURSDAY...
* WHAT...NORTH WINDS TO 25 KT AND SIGNIFICANT WAVES TO 6 FT
OCCASIONALLY TO 8 FT EXPECTED TODAY. NORTH TO NORTHWEST WINDS
TO 30 KT AND SIGNIFICANT WAVES TO 8 OCCASIONALLY TO 10 FT
WEDNESDAY AND WEDNESDAY NIGHT.
* 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page