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RWUS32 KSTL 121244

FFSSTL

ILZ058-059-098-099-MOZ052-060-061-121545-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE ST LOUIS MO

724 AM CDT SUN MAY 12 2002



...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR JERSEY...CALHOUN...

GREENE...MACOUPIN...ST. CHARLES...WARREN AND LINCOLN COUNTIES UNTIL

1045 AM CDT...



AT 724 AM CDT...A BROAD LINE OF SHOWERS AND THUNDERSTORMS WAS LOCATED

FROM THE SOUTHERN PORTION OF MACOUPIN COUNTY IN ILLINOIS SOUTH OF 

THE CARLINVILLE AREA...TO THE WEST SOUTHWEST THROUGH ST CHARLES 

COUNTY TO THE LAKE OF THE OZARKS. RAINFALL INTENSITIES HAVE DECREASED

SINCE ABOUT 530 AM...HOWEVER BRIEF DOWNPOURS ARE STILL BEING 

REPORTED.  HEAVIEST STORMS WERE JUST WEST OF UNION...ABOUT 40 MILES 

WEST OF ST LOUIS.



NATIONAL WEATHER SERVICE DOPPLER RADAR PRECIPITATION ESTIMATES 

INDICATE A NARROW CORRIDOR OF PRECIPITATION MAY HAVE REACHED 2 TO 4 

INCHES OF RAIFALL MAY HAVE OCCURRED FROM TROY MISSOURI EAST 

NORTHEAST THROUGH HARDIN ILLINOIS...ABOUT 30 MILES NORTH OF ST LOUIS 

AND ON NORTHEAST THROUGH CARROLLTON AND GREENFIELD ILLINOIS EARLY 

THIS MORNING.



THE SHERIFF OFFICE FOR GREENE COUNTY REPORTED HIGHWAY 67 AND 267 

ALONG WITH NUMEROUS SECONDARY ROADS WERE UNDER WATER...BUT NONE WERE 

CLOSED AS OF 700 AM THIS MORNING.



THE STORMS THAT PROMPTED THE INITIAL ISSUANCE OF THE FLASH FLOOD 

WARNING ARE SETTLING A LITTLE SOUTH AND EAST OF THE WARNED AREA...

BUT MORE STORMS ARE FORMING OVER CENTRAL MISSOURI. SINCE THE GROUND 

IS SO SATURATED THE MOISTURE WILL BE RUNNING OFF AS IT FALLS...AND 

THE THREAT OF MORE RAIN CONTINUES...THEREFORE THE FLASH FLOOD 

WARNING WILL CONTINUE UNTIL 1045 AM.



A FLOOD WATCH WILL REMAIN IN EFFECT FOR THESE AND SURROUNDING 

COUNTIES FOR TODAY AND TONIGHT. CONDITIONS ARE VERY UNSTABLE AND 

ADDITIONAL STORM DEVELOPMENT IS POSSIBLE LATER ON TODAY AND ALSO 

TONIGHT.  KEEP ABREAST OF LOCAL WEATHER CONDITIONS IN YOUR AREA AND 

FOR POSSIBLE STATEMENTS OR WARNINGS FROM THE NATIONAL WEATHER 

SERVICE AS THEY OCCUR.



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.



EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL

CREEKS AND STREAMS AND COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE

BANKS OF CREEKS AND STREAMS.



PEDIGO

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