

000 

WGUS73 KFSD 070000

FFSFSD



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

659 PM CDT THU SEP 6 2007



IAC193-070200-

WOODBURY IA-

659 PM CDT THU SEP 6 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR WEST

CENTRAL WOODBURY COUNTY...



AT 659 PM CDT...THE PUBLIC REPORTED A THUNDERSTORM PRODUCING FLASH 

FLOODING. THIS STORM WAS LOCATED NEAR SIOUX CITY..MOVING NORTHEAST 

AT 20 MPH. 



MANY LOCATIONS ACROSS SIOUX CITY WERE REPORTING WATER OVER THE 

ROADS...FLOODED VEHICLES AND MANHOLE COVERS BLOWING OFF. 



EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL

CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES

AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.



MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO

AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY

DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL

ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED

ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.



FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR

IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...

DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...

EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER

GROUND.



LAT...LON 4252 9647 4247 9639 4235 9640 4236 9628

      4245 9628 4251 9632



$$



08

