BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
731 PM CDT SUN MAY 27 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
LYON COUNTY IN NORTHWEST IOWA…
NORTH CENTRAL PLYMOUTH COUNTY IN NORTHWEST IOWA…
SIOUX COUNTY IN NORTHWEST IOWA…
EASTERN LINCOLN COUNTY IN SOUTHEAST SOUTH DAKOTA…

* UNTIL 800 PM CDT

* AT 731 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WALNUT
SIZE HAIL…AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM CANTON TO HAWARDEN TO LE
MARS…AND MOVING NORTHEAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR…
ROCK VALLEY AND MAURICE AROUND 740 PM CDT…
LARCHWOOD…SIOUX CENTER…ORANGE CITY AND ALVORD AROUND 745 PM
CDT…
HULL…ALTON…LESTER AND DOON AROUND 750 PM CDT…
HOSPERS…GRANVILLE…BOYDEN AND ROCK RAPIDS AROUND 755 PM CDT…
MATLOCK AND GEORGE AROUND 800 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.