BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
236 AM CDT FRI JUN 11 2010

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
PLYMOUTH COUNTY IN NORTHWEST IOWA…
SIOUX COUNTY IN NORTHWEST IOWA…
WOODBURY COUNTY IN NORTHWEST IOWA…
DAKOTA COUNTY IN NORTHEAST NEBRASKA…
EXTREME EAST CENTRAL DIXON COUNTY IN NORTHEAST NEBRASKA…
UNION COUNTY IN SOUTHEAST SOUTH DAKOTA…

* UNTIL 315 AM CDT

* AT 235 AM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BERESFORD TO 7 MILES SOUTHEAST OF EMERSON…AND MOVING EAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR…
AKRON…HOMER…NORTH SIOUX CITY AND JEFFERSON AROUND 240 AM CDT…
STONE STATE PARK…SIOUX CITY…HAWARDEN AND SOUTH SIOUX CITY
AROUND 245 AM CDT…
SERGEANT BLUFF AND SALIX AROUND 250 AM CDT…
SLOAN…MERRILL…IRETON AND HINTON AROUND 255 AM CDT…
STRUBLE…MAURICE…LE MARS AND LAWTON AROUND 300 AM CDT…
SIOUX CENTER AND HULL AROUND 305 AM CDT…

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE CHATSWORTH…BRUNSVILLE…BRONSON…OYENS AND OTO.

THIS EXTENDS THE PREVIOUS WARNINGS FOR DAKOTA AND UNION COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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.

INTENSE SQUALL LINES CAN OCCASSIONALY PRODUCE BRIEF TORNADOES IN ADDITION TO WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY LIKELY…FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.