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956 

RWUS32 KSTL 091548

FFSSTL

ILZ060-064-069-100>102-091900-



URBAN AND SMALL STREAM FLOOD ADVISORY

NATIONAL WEATHER SERVICE ST LOUIS MO

945 AM CST FRI FEB 9 2001



...AN URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED FOR

MONROE...MONTGOMERY...BOND...ST. CLAIR...CLINTON AND MADISON COUNTIES

UNTIL 100 PM CST...



WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 

VERY HEAVY RAIN HAVE BEEN OCCURRING OVER SOUTHWEST ILLINOIS SINCE 8 

AM.   RADAR ESTIMATES INDICATE SOME AREAS MAY HAVE ALREADY PICKED UP 

BETWEEN 1 AND 1.5 INCHES OF RAIN.  IN THE CAHOKIA AREA...HEAVY 

DOWNPOURS PRODUCED OVER ONE-HALF INCH OF RAIN IN LESS THAN 30 

MINUTES.



SOME CITIES AND TOWNS AFFECTED BY THIS ADVISORY INCLUDE...

LITCHFIELD...HILLSBORO...EDWARDSVILLE...COLLINSVILLE...GREENVILLE...

BELLEVILLE...OFALLON ILLINOIS...WATERLOO....MASCOUTAH...AND 

GERMANTOWN.



THE SHOWERS AND STORMS PRODUCING THESE HEAVY RAINS WILL BE WEAKENING 

DURING THE LATE MORNING HOURS.  HOWEVER...UNTIL THE HEAVY RAINS 

SUBSIDE...EXCESSIVE RUNOFF WILL CAUSE FLOODING OF SMALL CREEKS AND 

STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND 

FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING 

AREAS ARE SUBJECT TO FLOODING.



DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE

ROADWAY. UNDERPASSES AND OTHER LOW LYING AREAS THAT ARE PRONE TO

FLOODING DURING TIMES OF HEAVY RAIN SHOULD BE AVOIDED. IF YOUR

VEHICLE DOES STALL IN RISING WATERS...ABANDON IT AND MOVE TO HIGHER

GROUND.



TRUETT/TPS/DUMMER

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