650
FZUS73 KLOT 180204
MWSLOT
MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE
904 PM CDT FRI APR 17 2026
LMZ740-741-777-779-180300-
/O.CON.KLOT.MA.W.0027.000000T0000Z-260418T0300Z/
904 PM CDT FRI APR 17 2026
..A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR THE FOLLOWING AREAS...
NEARSHORE WATERS FROM WINTHROP HARBOR TO NORTHERLY ISLAND...
OPEN WATERS FROM WINTHROP HARBOR TO MICHIGAN CITY OUT TO MID
LAKE...
AT 904 PM CDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WATERSPOUTS
WERE LOCATED ALONG A LINE EXTENDING FROM 8 NM EAST OF WINTHROP HARBOR
TO NEAR WAUKEGAN HARBOR TO 6 NM EAST OF ELGIN, MOVING EAST AT 40
KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS IN EXCESS OF 65 KNOTS.
SOURCE...RADAR INDICATED.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. BOATS COULD SUFFER SIGNIFICANT STRUCTURAL
DAMAGE IN HIGH WINDS. SMALL CRAFT COULD CAPSIZE IN SUDDENLY
HIGHER WAVES.
LOCATIONS IMPACTED INCLUDE...
HARRISON-DEVER CRIB, WILMETTE HARBOR, WINTHROP HARBOR, MONTROSE
HARBOR, MONROE HARBOR, WAUKEGAN HARBOR, BELMONT HARBOR, DIVERSY
HARBOR, AND DUSABLE HARBOR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR NORTHEASTERN
ILLINOIS...AND THE ADJACENT WATERS OF LAKE MICHIGAN.
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE
EXPECTED.
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.
LAT...LON 4246 8702 4209 8696 4209 8697 4186 8738
4188 8762 4189 8762 4189 8760 4190 8762
4206 8767 4214 8775 4227 8783 4233 8783
4239 8780 4248 8780
TIME...MOT...LOC 0204Z 262DEG 38KT 4249 8761 4227 8776 4202 8815
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...65KTS
YACK
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