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000 

WGUS53 KFSD 220459

FFWFSD

SDC027-127-220800-



BULLETIN - EAS ACTIVATION REQUESTED

FLASH FLOOD WARNING

NATIONAL WEATHER SERVICE SIOUX FALLS SD

1153 PM CDT THU APR 21 2005



THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A



* FLASH FLOOD WARNING FOR...

  CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA

  UNION COUNTY IN SOUTHEAST SOUTH DAKOTA



* UNTIL 300 AM CDT



* AT 1153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED

  FLASH FLOODING FROM PERSISTENT HEAVY SHOWERS AND THUNDERSTORMS

  FROM JUST NORTH OF VERMILLION TO NEAR AKRON IOWA. THIS AREA WAS

  NOW MOVING SLOWLY SOUTHEAST.



THIS WARNING EXTENDS THE PREVIOUS FLASH FLOOD WARNING.



ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE IN THE 

WARNED AREA.



AT 1040 PM CDT...OVER 3 INCHES OF RAIN WAS REPORTED THIS EVENING

1 MILE NORTH OF VERMILLION...CAUSING WATER TO FLOW OVER THE YARD

AND AREA ROADS.



EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL

CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE

BANKS OF CREEKS AND STREAMS.



BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE

DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY.

MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN

AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.



LAT...LON 4284 9716 4268 9668 4291 9655 4309 9716



$$

RSR

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