658
FZUS73 KLOT 180245
MWSLOT
MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE
945 PM CDT FRI APR 17 2026
LMZ740-741-777-779-180300-
/O.CON.KLOT.MA.W.0027.000000T0000Z-260418T0300Z/
945 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 945 PM CDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WATERSPOUTS
WERE LOCATED ALONG A LINE EXTENDING FROM 8 NM WEST OF WAUKEGAN HARBOR
TO 11 NM NORTHWEST OF WILMETTE HARBOR TO NEAR OHARE AIRPORT, MOVING
NORTHEAST AT 55 KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS TO NEARLY 50 KNOTS.
SOURCE...RADAR INDICATED.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND 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 0245Z 240DEG 56KT 4235 8801 4219 8787 4193 8788
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...49KTS
YACK
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