Flood Watch Effective Saturday Night Through Sunday Afternoon for Chicagoland

Chicagoland weather radar [LIVE PRECIPITATION INDICATOR RADAR] shows possible severe thunderstorms in far northwest Illinois and light rain and thunder near northern Cook County and Lake County (Illinois). A long band of thunderstorms has also developed from southern Lake Michigan from southern Cook County to Will County, west to Quad Cities — about the size of the area between I-88 and I-80 at 8:30 p.m.

Heavy rain should arrive in the northwest suburbs of Chicago by about 11:00 p.m.

FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
321 PM CDT SAT JUL 12 2014

WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF…ROCKFORD…BELVIDERE…WOODSTOCK…
WAUKEGAN…OREGON…DIXON…DEKALB…AURORA…WHEATON…CHICAGO…
OTTAWA…OSWEGO…MORRIS…JOLIET…KANKAKEE…PONTIAC…
WATSEKA…PAXTON…GARY…VALPARAISO…MOROCCO…RENSSELAER…
FOWLER
321 PM CDT SAT JUL 12 2014 /421 PM EDT SAT JUL 12 2014/

…FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT /8 PM EDT/ THIS
EVENING THROUGH SUNDAY AFTERNOON…

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF ILLINOIS AND INDIANA…
INCLUDING THE FOLLOWING COUNTIES…IN ILLINOIS…BOONE…
COOK…DE KALB…DUPAGE…FORD…GRUNDY…IROQUOIS…KANE…
KANKAKEE…KENDALL…LA SALLE…LAKE IL…LEE…LIVINGSTON…
MCHENRY…OGLE…WILL AND WINNEBAGO. IN INDIANA…BENTON…
JASPER…LAKE IN…NEWTON AND PORTER.

* FROM 7 PM CDT /8 PM EDT/ THIS EVENING THROUGH SUNDAY AFTERNOON.

* A LINE OF THUNDERSTORMS WILL SLOWLY SINK SOUTH THROUGH THE
WARNING AREA THIS EVENING AND OVERNIGHT. THE STORMS WILL PRODUCE
HEAVY RAIN WITH RAINFALL TOTALS REACHING 1 TO 2 INCHES WITH
LOCALLY HIGHER AMOUNTS BY SUNDAY MORNING ESPECIALLY ALONG THE
ILLINOIS WISCONSIN STATE LINE. IN ADDITION…AREAS FROM SOUTHERN
COOK COUNTY THROUGH PONTIAC AND GIBSON CITY RECEIVED 3 TO 4
INCHES OF RAIN THIS MORNING. THESE AREAS WILL BE VERY
SUSCEPTIBLE TO FLASH FLOODING.

* FLASH FLOODING MAY CAUSE ROADS TO BE CLOSED AND IMPASSIBLE AND
CAUSE RISES ON AREA RIVERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

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