SEVERE THUNDERSTORM WATCH

UPDATE: Small cells are developing over Dupage County, but the main storm cells heading toward the northwest suburbs are just passing I-80 and entering southwest Kane County at 8:00 p.m.

A Severe Thunderstorm Watch was issued at 5:45 p.m. At 7:00 p.m. radar indicates storms just to the west of northwest Cook County traveling north-northwest. A cell is developing in DuPage County, but the majority of thunderstorms are south of I-80.

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 535
NWS STORM PREDICTION CENTER NORMAN OK
545 PM CDT TUE JUN 21 2011

SEVERE THUNDERSTORM WATCH 535 IS IN EFFECT UNTIL 100 AM CDT
FOR THE FOLLOWING LOCATIONS IN ILLINOIS
ILLINOIS COUNTIES INCLUDED ARE

BOONE                BUREAU              COOK
DE KALB              DUPAGE              FORD
FULTON               GRUNDY              HENRY
IROQUOIS             KANE                KANKAKEE
KENDALL              KNOX                LAKE
LA SALLE             LEE                 LIVINGSTON
MARSHALL             MCHENRY             MCLEAN
OGLE                 PEORIA              PUTNAM
STARK                STEPHENSON          TAZEWELL
WILL                 WINNEBAGO           WOODFORD

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