

310 

RWUS32 KSTL 240927

FFSSTL

ILZ102-MOZ063-065-241315-



URBAN AND SMALL STREAM FLOOD ADVISORY

NATIONAL WEATHER SERVICE ST LOUIS MO

425 AM CDT TUE JUL 24 2001



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

JEFFERSON...MONROE AND SOUTHERN ST. LOUIS COUNTIES UNTIL 815 AM

CDT...



SEVERAL ROUNDS OF THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED THROUGH 

SOUTHERN ST. LOUIS COUNTY...JEFFERSON COUNTY...AND MONROE 

COUNTY...SINCE 1 AM.   ALTHOUGH THE HEAVY RAIN HAS NOT BEEN 

WIDESPREAD...RADAR INDICATES SOME LOCATIONS HAVE PICKED UP BETWEEN 1 

AND 3 INCHES OF RAIN DURING THE PREDAWN HOURS.



AT 425 AM...RADAR INDICATED A NARROW BAND OF THUNDERSTORMS WITH 

HEAVY RAIN EXTENDING FROM SOUTHWEST ST. LOUIS COUNTY NEAR THE 

MISSOURI RIVER...TO NEAR WATERLOO ILLINOIS.  THIS BAND WAS DROPPING 

SOUTH AT 10 TO 20 MPH.



A STORM SPOTTER REPORTED GRAVOIS CREEK WAS RUNNING BANKFULL NEAR 

GRANTS FARM.



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

EUREKA...PACIFIC...ARNOLD...WATERLOO ILLINOIS...FESTUS...DE 

SOTO...AND HILLSBORO.



EXCESSIVE RUNOFF FROM THIS STORM 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.



MOTORISTS SHOULD EXERCISE CAUTION EARLY TODAY WHEN APPROACHING AREAS 

THAT ARE KNOWN TO FLOOD DURING TIMES OF WET WEATHER.  REMEMBER... 

DARKNESS MAKES IT DIFFICULT TO RECOGNIZE THE DANGER OF FLOOD 

WATERS.  NEVER...DRIVE OUR 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

