BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
933 PM CDT FRI JUN 25 2010

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
EASTERN LYON COUNTY IN NORTHWEST IOWA…
OSCEOLA COUNTY IN NORTHWEST IOWA…
SOUTHWESTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA…

* UNTIL 1015 PM CDT

* AT 933 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL…AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ELLSWORTH TO BREWSTER…AND MOVING SOUTH AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR…
LITTLE ROCK AROUND 945 PM CDT…
GEORGE AROUND 955 PM CDT…
SIBLEY AROUND 1000 PM CDT…
HARRIS AND OCHEYEDAN AROUND 1005 PM CDT…
ASHTON AROUND 1010 PM CDT…

PRECAUTIONARY/PREPAREDNESS ACTIONS…

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR…DESTRUCTIVE HAIL…DEADLY LIGHTNING…AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

THESE STORMS HAVE 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.