506
WHUS73 KLOT 050231
MWWLOT
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHICAGO IL
931 PM CDT THU SEP 4 2025
LMZ740>745-051045-
/O.CON.KLOT.GL.W.0023.250905T0600Z-250905T1500Z/
WINTHROP HARBOR TO WILMETTE HARBOR IL-
WILMETTE HARBOR TO NORTHERLY ISLAND IL-
NORTHERLY ISLAND TO CALUMET HARBOR IL-
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-
BURNS HARBOR TO MICHIGAN CITY IN-
931 PM CDT THU SEP 4 2025
..GALE WARNING REMAINS IN EFFECT FROM 1 AM TO 10 AM CDT FRIDAY
* WHAT...SOUTHWEST GALES TO 40 KT AND SIGNIFICANT WAVES TO 8 FT
OCCASIONALLY TO 10 FT EXPECTED.
* WHERE...ILLINOIS AND INDIANA NEARSHORE FROM WINTHROP HARBOR IL
TO MICHIGAN CITY IN.
* WHEN...FROM 1 AM TO 10 AM CDT FRIDAY.
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.
* ADDITIONAL INFORMATION...THE LARGEST WAVES ARE EXPECTED
OFFSHORE AND TOWARD THE OPEN WATER OF LAKE MICHIGAN. IN
ADDITION, STORM FORCE WIND GUSTS TO 50 KT ARE POSSIBLE ON HIGH
PLATFORM STATIONS SUCH AS THE CHICAGO CRIB.
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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