BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
537 PM CDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
EXTREME WEST CENTRAL PLYMOUTH COUNTY IN NORTHWEST IOWA…
NORTHERN DIXON COUNTY IN NORTHEAST NEBRASKA…
CLAY COUNTY IN SOUTHEAST SOUTH DAKOTA…
UNION COUNTY IN SOUTHEAST SOUTH DAKOTA…
SOUTHEASTERN YANKTON COUNTY IN SOUTHEAST SOUTH DAKOTA…

* UNTIL 615 PM CDT

* AT 537 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 5 MILES SOUTHWEST OF NEWCASTLE TO
JEFFERSON…AND MOVING NORTH AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR…
VERMILLION AROUND 550 PM CDT…
MECKLING AROUND 555 PM CDT…
MISSION HILL AROUND 605 PM CDT…
WAKONDA AND VOLIN AROUND 610 PM CDT…

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
WESTFIELD.

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.

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WIND. THIS IS AN
EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.