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FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE ST LOUIS MO

1020 PM CDT SUN MAY 12 2002



...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE FOLLOWING 

COUNTIES UNTIL 2 AM...



IN MISSOURI...

BOONE...MONITEAU....COLE...CALLAWAY...OSAGE...MONTGOMERY...GASCONADE

...LINCOLN...WARREN...ST CHARLES...FRANKLIN....JEFFERSON...

ST LOUIS COUNTY...AND ST LOUIS CITY



IN ILLINOIS...

CALHOUN...JERSEY...GREENE....MADISON...ST CLAIR... 

MONROE...MACOUPIN...MONTGOMERY...BOND...CLINTON...WASHINGTON

...FAYETTE..AND MARION



AT 1015 PM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE 

MODERATE TO OCCASIONALLY HEAVY RAIN...CENTERED ALONG A COLUMBIA...ST 

LOUIS...VANDALIA ILLINOIS LINE.   THIS RAIN...COMBINED WITH THE 

SATURATED GROUND PRODUCED BY THE RECENT WET WEATHER...WILL CONTINUE 

A FLASH FLOOD THREAT ACROSS PARTS OF CENTRAL AND EAST CENTRAL 

MISSOURI...AND SOUTHWEST ILLINOIS...INTO THE PREDAWN HOURS MONDAY 

MORNING.



ANOTHER ONE-QUARTER TO ONE-HALF INCH OF RAIN IS EXPECTED ACROSS THE 

AREA.  HOWEVER...THE GOOD NEWS IS THAT THE RAINFALL WILL BE TAPERING 

OFF IN MID MISSOURI...INCLUDING THE COLUMBIA AND JEFFERSON CITY 

AREAS...BETWEEN 1020 PM AND 12 MIDNIGHT.  RAINFALL IN EAST CENTRAL 

MISSOURI AND SOUTHWEST ILLINOIS WILL BEGIN TAPERING OFF AFTER 

MIDNIGHT.  



EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH 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 FLASH FLOODING.



BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE

DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT

QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY

IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.



MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. AVOID BRIDGES...DIPS...

OR OTHER LOW LYING AREAS...AND NEVER DRIVE YOUR VEHICLE INTO AREAS

WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT

TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER

SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.

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