An Earlier radar image of this storm is on the post below this one.

BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
651 PM CDT WED MAY 12 2010

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
SOUTHEASTERN GRUNDY COUNTY IN CENTRAL IOWA…
NORTHEASTERN MARSHALL COUNTY IN CENTRAL IOWA…
NORTHWESTERN TAMA COUNTY IN CENTRAL IOWA…

* UNTIL 715 PM CDT

* AT 646 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR MARSHALLTOWN…OR 44 MILES SOUTHWEST OF WATERLOO…AND MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE…
CONRAD…REINBECK…MARSHALLTOWN AIRPORT…BEAMAN…GLADBROOK…LINCOLN AND MORRISON.

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.