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648 

RWUS32 KFSD 211355

FFSFSD

MNZ098-SDZ062-211445-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

854 AM CDT WED AUG 21 2002



...FLASH FLOOD WARNING CONTINUES UNTIL 945 AM CDT FOR...



...ROCK COUNTY IN SOUTHWEST MINNESOTA...

...SOUTHERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA...



AT 850 AM CDT...WEATHER SERVICE RADAR INDICATED THAT THE 

THUNDERSTORMS WITH THE HEAVIEST RAINFALL HAD MOVED OUT OF THE WARNED 

AREA. A TOTAL OF 4 TO 6 INCHES OF RAIN HAS FALLEN IN THE AREA 

OVERNIGHT AND EARLY THIS MORNING...WITH 1 TO 1.5 INCH FALLING IN 20 

TO 30 MINUTES AROUND 800 AM. 



URBAN FLOODING WAS REPORTED IN SOUTHEASTERN SIOUX FALLS AT 755 AM 

WITH SEVERAL ROADS BEING FLOODED WITH 6 TO 12 INCHES OF FLOWING 

WATER. ALSO...AT 815 AM...THERE WAS FLOODING ACROSS HIGHWAY 75 IN 

LUVERNE.



THE RUNOFF IN URBAN AREAS WILL QUICKLY SUBSIDE AFTER 900 AM...BUT 

RAPID RISES WILL CONTINUE ON AREA STREAMS AND CREEKS THROUGH 930 AM.



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.

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