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132 

RWUS32 KFSD 241444

FFSFSD

MNZ098-241515-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

945 AM CDT TUE JUL 24 2001



...URBAN FLOOD WARNING CONTINUES UNTIL 1015 AM CDT FOR...



...ROCK COUNTY IN SOUTHWEST MINNESOTA...



AT 935 AM CDT WEATHER SERVICE DOPPLAR RADAR SHOWED A LINE OF 

THUNDERSTORMS WITH HEAVY RAIN FROM DELL RAPIDS SOUTH DAKOTA...20 

MILES NORTH OF SIOUX FALLS...TO ASH CREEK MINNESOTA...30 MILES EAST 

OF SIOUX FALLS. THIS LINE WAS MOVING NORTHEAST AT 30 MPH. 



WHEN THIS LINE WENT THROUGH SIOUX FALLS...VERY HEAVY RAINFALL 

PRODUCED WATER 2 TO 4 FEET DEEP IN PARTS OF SOUTHERN SIOUX FALLS 

BETWEEN 910 AM AND 930 AM CDT.  



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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