897
WHUS73 KLOT 211950
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
250 PM CDT TUE APR 21 2026
LMZ741-742-212100-
/O.CON.KLOT.SC.Y.0047.000000T0000Z-260421T2100Z/
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
250 PM CDT TUE APR 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...
* WHAT...SOUTHWEST WINDS TO 25 KT EXPECTED.
* WHERE...WILMETTE HARBOR TO CALUMET HARBOR IL.
* WHEN...FROM 9 AM THIS MORNING TO 4 PM CDT THIS AFTERNOON.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
LMZ743>745-220000-
/O.CON.KLOT.SC.Y.0047.000000T0000Z-260422T0000Z/
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
250 PM CDT TUE APR 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
* WHAT...SOUTHWEST WINDS TO 25 KT EXPECTED.
* WHERE...CALUMET HARBOR IL TO MICHIGAN CITY IN.
* WHEN...FROM 9 AM THIS MORNING TO 7 PM CDT THIS EVENING.
* 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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