THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN COOK COUNTY IN NORTHEAST ILLINOIS...
NORTHERN WILL COUNTY IN NORTHEAST ILLINOIS...
NORTHERN LAKE COUNTY IN NORTHWEST INDIANA...

* UNTIL 945 PM CDT

* AT 836 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM OAK PARK TO 7 MILES EAST
OF HYDE PARK TO 10 MILES NORTHEAST OF WHITING TO 10 MILES NORTHWEST
OF BEVERLY SHORES...AND MOVING SOUTH AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
COUNTRYSIDE...CHATHAM AND WHITING AROUND 850 PM CDT.
JUSTICE...HODGKINS...INDIAN HEAD PARK AND OAK LAWN AROUND 855 PM
CDT.
PALOS HILLS...HICKORY HILLS...WILLOW SPRINGS AND WORTH AROUND 900
PM CDT.
SOUTH HOLLAND...POSEN...PHOENIX AND MIDLOTHIAN AROUND 905 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
BRIDGEVIEW...HOMETOWN...RIVERDALE...CALUMET PARK...PALOS PARK...
ROBBINS...PALOS HEIGHTS...EAST HAZEL CREST...ORLAND HILLS AND SOUTH
CHICAGO HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.