

000 

WGUS53 KFSD 172114

FFWFSD

IAC041-172315-



BULLETIN - EAS ACTIVATION REQUESTED

FLASH FLOOD WARNING

NATIONAL WEATHER SERVICE SIOUX FALLS SD

414 PM CDT FRI SEP 17 2004



THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A



* FLASH FLOOD WARNING FOR...

  CLAY COUNTY IN NORTHWEST IOWA



* UNTIL 615 PM CDT



* AT 412 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   

  FLASH FLOODING FROM CONTINUOUS THUNDERSTORM ACTIVITY.



WHILE THE EXCESSIVE RAINFALL HAS ENDED...RUNOFF AND STANDING WATER 

WILL CONTINUE FOR THE NEXT COUPLE OF HOURS.



EXCESSIVE RUNOFF FROM 3 TO 4 INCHES OF RAIN THAT FELL LATE THIS 

MORNING AND EARLY THIS AFTERNOON WILL CAUSE FLOODING OF SMALL CREEKS 

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

WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.



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.



FLOODING IS OCCURRING. IT IS IMPORTANT TO KNOW WHERE YOU ARE 

RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN 

HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS.



LAT...LON 4325 9538 4294 9538 4293 9493 4325 9494



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