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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
SOUTHEASTERN BROOKINGS COUNTY IN EAST CENTRAL SOUTH DAKOTA…
NORTHEASTERN HANSON COUNTY IN SOUTHEAST SOUTH DAKOTA…
LAKE COUNTY IN EAST CENTRAL SOUTH DAKOTA…
NORTHERN MCCOOK COUNTY IN SOUTHEAST SOUTH DAKOTA…
EASTERN MINER COUNTY IN EAST CENTRAL SOUTH DAKOTA…
NORTHERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA…
MOODY COUNTY IN EAST CENTRAL SOUTH DAKOTA…

* UNTIL 945 PM CDT

* AT 855 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING MULTIPLE SEVERE THUNDERSTORMS CAPABLE OF PRODUCING GOLF
BALL SIZE HAIL…AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR MADISON…
TO CANOVA…TO 5 MILES SOUTHWEST OF CANOVA…AND MOVING NORTHEAST
AT 25 MPH.

AT 849 PM CDT…EMERGENCY MANAGEMENT REPORTED 65 TO 75 MPH WIND
GUSTS JUST WEST OF MADISON WITH THE FIRST STORM IN THIS LINE OF
THUNDERSTORMS. AT 856 PM CDT…NICKEL TO QUARTER SIZE HAIL WAS
ALSO REPORTED IN MADISON.

* SEVERE THUNDERSTORMS WILL BE NEAR…
WENTWORTH…BALTIC AND CANOVA AROUND 900 PM CDT…
VILAS AROUND 905 PM CDT…
COLMAN AND DELL RAPIDS AROUND 910 PM CDT…
HOWARD AROUND 915 PM CDT…
TRENT AND LAKE HERMAN STATE PARK AROUND 920 PM CDT…
WINFRED AND MADISON AROUND 925 PM CDT…
EGAN AROUND 930 PM CDT…
FLANDREAU AROUND 940 PM CDT…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!

THIS IS A SUPERCELL THUNDERSTORM. 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.