Severe Thunderstorm Watch and Flood Advisory with Storms on the Way

UPDATE: Severe thunderstorm watch #829 and the Flood Advisory for Saturday has been canceled for the entire Chicago Metro area. A Rip Current Statement is still active Sunday.

Radar images show that the precipitation, while persistent and covering a wide area, has diminished. Originally about two inches of rain were forecast for Saturday night.


Storms were more severe in Indiana and Michigan were Michigan, Western Michigan games were ended late in the third quarter, and Notre Dame’s game was delayed twice for a total of about two hours.Weather radar indicates a large area of thunderstorms with the leading edge just crossing the western edge of Du Page County. The storms closest to northwest suburbs are moving from southwest to northeast. The leading edge of storms which extends back to Iowa is expected pass through Arlington Heights between 5:40 p.m. and 5:55 p.m. About 2 inches of rain are expected in the next couple of hours.

EARLIER WATCH THAT WAS CANCELED …
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 829
NWS STORM PREDICTION CENTER NORMAN OK
405 PM EDT SAT SEP 3 2011

SEVERE THUNDERSTORM WATCH 829 IS IN EFFECT UNTIL 1200 AM EDT
FOR THE FOLLOWING LOCATIONS

ILLINOIS COUNTIES INCLUDED ARE

BUREAU COOK DUPAGE
FORD FULTON GRUNDY
HANCOCK HENDERSON HENRY
IROQUOIS KANE KANKAKEE
KENDALL KNOX LA SALLE
LIVINGSTON MARSHALL MASON
MCDONOUGH MCLEAN MERCER
PEORIA PUTNAM SCHUYLER
STARK TAZEWELL WARREN
WILL WOODFORD

FLOOD ADVISORY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
307 PM CDT SAT SEP 3 2011

ILC031-043-197-INC089-040200-
/O.NEW.KLOT.FA.Y.0044.110903T2007Z-110904T0200Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WILL IL-DUPAGE IL-COOK IL-LAKE IN-
307 PM CDT SAT SEP 3 2011

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR…
CENTRAL WILL COUNTY IN NORTHEAST ILLINOIS…
NORTHWESTERN LAKE COUNTY IN NORTHWEST INDIANA…
SOUTHEASTERN COOK COUNTY IN NORTHEAST ILLINOIS…
SOUTHEASTERN DUPAGE COUNTY IN NORTHEAST ILLINOIS…

* UNTIL 900 PM CDT

* AT 306 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAINFALL ACROSS THE ADVISORY AREA. DOPPLER
RADAR ESTIMATED UP TO TWO INCHES OF RAINFALL OVER PORTIONS OF COOK
COUNTY…WITH ADDITIONAL THUNDERSTORMS MOVING INTO THE ADVISED
AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE MINOR FLOODING TO
OCCUR…ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE MINOR FLOODING
INCLUDE…ALSIP…BERWYN…BLUE ISLAND…BROOKFIELD…BURNHAM…
BURR RIDGE…CALUMET CITY…CHATHAM…CHICAGO…CHICAGO HEIGHTS…
CICERO…DOLTON…EAST CHICAGO…FLOSSMOOR…FOREST PARK…
FRANKFORT…GLENWOOD…HAMMOND…HIGHLAND…HINSDALE…HOMER
GLEN…JUSTICE…LA GRANGE…LANSING…LEMONT…LINCOLN PARK…
LYNWOOD…LYONS…MATTESON AND MAYWOOD.


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