...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
LAKE...SOUTHERN COOK AND NORTHERN WILL COUNTIES UNTIL 945 PM CDT...

AT 850 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM OAK LAWN TO OGDEN DUNES...MOVING
SOUTH AT 30 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
POSEN...PHOENIX...MIDLOTHIAN AND DOLTON AROUND 900 PM CDT.
ORLAND PARK...THORNTON...SOUTH HOLLAND AND OAK FOREST AROUND 905 PM
CDT.
TINLEY PARK...LYNWOOD...HOMEWOOD AND HAZEL CREST AROUND 910 PM CDT.
MOKENA...OLYMPIA FIELDS AND FORD HEIGHTS AROUND 915 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS LINE OF SEVERE THUNDERSTORMS INCLUDE
PALOS HEIGHTS...ROBBINS...RIVERDALE...PALOS PARK...EAST HAZEL
CREST...ORLAND HILLS...FRANKFORT SQUARE AND SOUTH CHICAGO HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A SUPERCELL THUNDERSTORM. DUE TO THE ROTATING NATURE OF
SUPERCELLS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND POSSIBLY TORNADOES. BE PREPARED TO ACT QUICKLY SHOULD A
TORNADO OCCUR OR A TORNADO WARNING BE ISSUED.