BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
712 PM CDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
IDA COUNTY IN NORTHWEST IOWA…
SOUTHEASTERN WOODBURY COUNTY IN NORTHWEST IOWA…

* UNTIL 800 PM CDT

* AT 709 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE
HAIL. THIS STORM WAS LOCATED 5 MILES NORTH OF DANBURY…OR 15
MILES WEST OF IDA GROVE…AND MOVING NORTHEAST AT 15 MPH. A SECOND
STORM WAS LOCATED 3 MILES NORTHEAST OF IDA GROVE…ALSO CAPABLE OF
PRODUCING WALNUT SIZED HAIL AND MOVING NORTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR…
BATTLE CREEK AND CUSHING AROUND 730 PM CDT…
IDA GROVE AND HOLSTEIN AROUND 755 PM CDT…
ARTHUR AND GALVA AROUND 800 PM CDT…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY…IF A TORNADO IS SPOTTED…ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE…SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!