427
WHUS73 KLOT 100301
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
901 PM CST TUE DEC 9 2025
LMZ740>743-101115-
/O.CON.KLOT.GL.W.0030.000000T0000Z-251210T2100Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
CALUMET HARBOR IL TO GARY IN-
901 PM CST TUE DEC 9 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 3 PM CST WEDNESDAY
* WHAT...SOUTHWEST GALES TO 35 KT BECOMING NORTHWEST TO 40 KT
WEDNESDAY MORNING AND SIGNIFICANT WAVES TO 10 FT OCCASIONALLY
TO 13 FT EXPECTED.
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR IL, AND CALUMET
HARBOR IL TO GARY IN.
* WHEN...FROM 9 PM THIS EVENING TO 3 PM CST WEDNESDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL DETAILS...SNOW SQUALLS MAY ACCOMPANY THE NORTHWEST
WIND SHIFT WEDNESDAY MORNING.
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.
LMZ744-745-101115-
/O.CON.KLOT.GL.W.0030.000000T0000Z-251211T0000Z/
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-
901 PM CST TUE DEC 9 2025
..GALE WARNING REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY
* WHAT...SOUTHWEST GALES TO 35 KT BECOMING NORTHWEST TO 40 KT
WEDNESDAY MORNING AND SIGNIFICANT WAVES TO 14 FT OCCASIONALLY
TO 18 FT EXPECTED.
* WHERE...GARY TO MICHIGAN CITY IN.
* WHEN...FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL DETAILS...SNOW SQUALLS MAY ACCOMPANY THE NORTHWEST
WIND SHIFT WEDNESDAY MORNING.
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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