BULLETIN – EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
811 PM CDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHERN DAVISON COUNTY IN SOUTHEAST SOUTH DAKOTA…
NORTHERN HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA…
LAKE COUNTY IN EAST CENTRAL SOUTH DAKOTA…
NORTHERN MCCOOK COUNTY IN SOUTHEAST SOUTH DAKOTA…
MINER COUNTY IN EAST CENTRAL SOUTH DAKOTA…
NORTHWESTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA…
SOUTHEASTERN SANBORN COUNTY IN EAST CENTRAL SOUTH DAKOTA…

* UNTIL 900 PM CDT

* AT 809 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING MULTIPLE SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HALF
DOLLAR SIZE HAIL…AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH.
THESE STORMS WERE LOCATED 7 MILES EAST OF CANOVA…WITH A SECOND
STORM NEAR FARMER…AND MOVING EAST AT 25 MPH. ADDITIONAL STORMS
CONTINUE TO DEVELOP IN NORTHEAST DAVISON COUNTY…ALSO MOVING
EAST-NORTHEAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR…
SPENCER AROUND 820 PM CDT…
LAKE HERMAN STATE PARK AND RAMONA AROUND 835 PM CDT…
MADISON AND ORLAND AROUND 840 PM CDT…
SALEM AROUND 845 PM CDT…
CHESTER…WENTWORTH AND NUNDA AROUND 900 PM CDT…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WIND. THIS IS AN
EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

THESE ARE SUPERCELL THUNDERSTORMS. DUE TO THE ROTATING NATURE OF
THESE STORMS…THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER…INCLUDING EXTREMELY LARGE HAIL…DESTRUCTIVE STRAIGHT LINE
WINDS AND POSSIBLY TORNADOES. MOVE QUICKLY TO A SAFE SHELTER…
PREFERABLY INTO AN INTERIOR ROOM…SUCH AS A BATHROOM OR A
CLOSET…OR INTO A BASEMENT.