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RWUS32 KFSD 221309

FFSFSD

IAZ020>022-221400-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

808 AM CDT THU AUG 22 2002



...FLASH FLOOD WARNING CONTINUES UNTIL 900 AM CDT FOR...



...EASTERN PLYMOUTH COUNTY IN NORTHWEST IOWA...

...CHEROKEE COUNTY IN NORTHWEST IOWA...

...BUENA VISTA COUNTY IN NORTHWEST IOWA...



RAINFALL TOTALS OF 2 TO 6 INCHES HAVE FALLEN ACROSS THE WARNED AREA 

OVERNIGHT. NATIONAL WEATHER SERVICE RADAR INDICATED AT 805 AM 

ANOTHER AREA OF STRONG THUNDERSTORMS MOVING INTO THIS AREA. THESE 

THUNDERSTORMS WILL PRODUCE AROUND ANOTHER ONE INCH OF RAINFALL BY 

900 AM. THIS HEAVY RAINFALL ON ALREADY SATURATED GROUNDS WILL 

PRODUCE RAPID RUNOFF RESULTING IN FLOODING OF STREETS AND 

UNDERPASSES IN URBAN AREAS...AND ADDITIONAL RAPID RISES ON AREA 

CREEKS AND STREAMS.



DO NOT 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...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.

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