

000 

WGUS73 KFSD 161635

FFSFSD

IAC193-NEC043-SDC127-161730-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

1130 AM CDT WED JUN 16 2004



...A FLASH FLOOD WARNING CONTINUES UNTIL 1230 PM CDT FOR UNION...

DAKOTA AND WOODBURY COUNTIES...



AT 1126 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED URBAN 

FLOODING AFFECTING MANY STREETS IN SIOUX CITY. OVER SOUTHEAST SIOUX 

CITY A RETIRED NATIONAL WEATHER SERVICE EMPLOYEE REPORTED 1.54 

INCHES OF RAINFALL BETWEEN 900 AM AND 1130 AM THIS MORNING RESULTING 

IN AREAS OF STANDING WATER.



THUNDERSTORMS PRODUCING FLASH FLOODING ARE CONTINUING ACROSS THE 

AREA COVERED BY THIS WARNING.  THESE STORMS WERE LOCATED ALONG A LINE 

EXTENDING FROM 7 MILES NORTH OF LAWTON TO 10 MILES SOUTHWEST OF 

ANTHON...OR ALONG A LINE EXTENDING FROM 13 MILES NORTHEAST OF SIOUX 

CITY TO 25 MILES WEST OF IDA GROVE...MOVING EAST AT 20 MPH.



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.



FLOODING IS OCCURRING. 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 4226 9605 4228 9640 4229 9663 4256 9662

          4256 9575 4221 9572



$$



DEMORIN/PS

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