BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING…CORRECTED
NATIONAL WEATHER SERVICE SIOUX FALLS SD
727 PM CDT SUN JUN 26 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR…
EASTERN DAKOTA COUNTY IN NORTHEAST NEBRASKA
SOUTHEASTERN UNION COUNTY IN SOUTHEAST SOUTH DAKOTA
WESTERN WOODBURY COUNTY IN WEST CENTRAL IOWA

* UNTIL 1030 PM CDT

* AT 723 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO THE AREA…AND REACH SIOUX CITY AROUND 735 PM CDT. THESE STORMS WILL PRODUCE RAINFALL RATES OF 2 TO 4 INCHES AN HOUR…PRODUCING AS MUCH AS 2 INCHES OF RAIN THROUGH 9 PM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…SIOUX CITY…DAKOTA CITY…HOMER…JACKSON…NORTH SIOUX CITY…SALIX…SERGEANT BLUFF…DAKOTA DUNES…SOUTH SIOUX CITY AND STONE STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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.