BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
722 PM CDT SUN MAY 27 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR…
EASTERN CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA
NORTHERN UNION COUNTY IN SOUTHEAST SOUTH DAKOTA
NORTHWESTERN PLYMOUTH COUNTY IN NORTHWEST IOWA
SOUTHEASTERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA
SOUTHWESTERN LYON COUNTY IN NORTHWEST IOWA
WESTERN SIOUX COUNTY IN NORTHWEST IOWA

* UNTIL 130 AM CDT MONDAY

* AT 716 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RAIN FALL OF ONE TO ONE AND A HALF INCHES FELL EARLIER THIS
EVENING AND AN ADDITIONAL ONE TO TWO INCHES WILL BE POSSIBLE.
THIS WARNING INCLUDES NEWTON HILLS STATE PARK.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…
BERESFORD…CANTON…HAWARDEN…AKRON…ALCESTER…ALVORD…DOON…
FAIRVIEW…HUDSON…INWOOD…NEWTON HILLS STATE PARK AND ROCK
VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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 OR IS IMMINENT. 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.