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RWUS32 KFSD 111329

FFSFSD

IAZ031-NEZ013-014-111430-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

824 AM CDT TUE JUN 11 2002



...FLASH FLOOD WARNING CONTINUES UNTIL 930 AM CDT FOR...



...WOODBURY COUNTY IN NORTHWEST IOWA...

...DAKOTA COUNTY IN NORTHEAST NEBRASKA...



...FLASH FLOOD WARNING CANCELLED FOR...



...DIXON COUNTY IN NORTHEAST NEBRASKA...



AT 825 AM CDT...WEATHER SERVICE RADAR INDICATED AN AREA OF 

THUNDERSTORMS MOVING OUT OF THE SIOUX CITY METRO AREA. THESE 

THUNDERSTORMS PRODUCED AROUND 1 INCH OF RAIN SINCE 730 AM...ON TOP 

OF THE 1 TO 3 INCHES OF RAIN THAT HAD FALLEN OVERNIGHT. THE INTENSE 

RAINFALL RATES WILL PRODUCE RAPID RUNOFF...PARTICULARLY IN URBAN 

AREAS...WHICH WILL LEAD TO FLOODING OF STREETS AND INTERSECTIONS AND 

RAPID RISES ON AREA STREAMS AND CREEKS.



IN DIXON COUNTY...RAINFALL RATES AND AMOUNTS WERE LOWER AS THE 

THUNDERSTORMS MOVED THROUGH THAT AREA MORE QUICKLY. ALSO...RAINFALL 

TOTALS FROM LAST NIGHT WERE LOWER RESULTING IN LOWER STREAM LEVELS 

BEFORE THIS ROUND OF RAIN. NO FLOODING HAS BEEN REPORTED IN DIXON 

COUNTY...AND ADDITIONAL RUNOFF OVER THE NEXT HOUR SHOULD NOT CAUSE 

ANY FLOOD PROBLEMS. THEREFORE THE FLASH FLOOD WARNING HAS BEEN 

CANCELLED FOR DIXON COUNTY.



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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