BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1215 AM CDT WED JUN 23 2010

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHWESTERN LYON COUNTY IN NORTHWEST IOWA…
NORTHERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA…
SOUTHEASTERN MINNEHAHA COUNTY IN SOUTHEAST SOUTH DAKOTA…

* UNTIL 1245 AM CDT

* AT 1215 AM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HARRISBURG…OR 10 MILES SOUTH OF SIOUX FALLS…AND MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR…
HARRISBURG AROUND 1220 AM CDT…
SIOUX FALLS AROUND 1225 AM CDT…
ROWENA AROUND 1235 AM CDT…
LARCHWOOD AND BRANDON AROUND 1240 AM CDT…
VALLEY SPRINGS AROUND 1245 AM CDT…

AT 1208 AM…WINDS OF 60 MPH WERE DETECTED BY RADAR JUST ABOVE THE SURFACE…2 MILES SOUTH OF TEA.

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.