826  
WUUS53 KFSD 122253  
SVRFSD  
SDC053-122330-  
/O.NEW.KFSD.SV.W.0199.170812T2253Z-170812T2330Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
553 PM CDT SAT AUG 12 2017  
 
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A  
 
* SEVERE THUNDERSTORM WARNING FOR...  
SOUTHWESTERN GREGORY COUNTY IN SOUTH CENTRAL SOUTH DAKOTA...  
 
* UNTIL 630 PM CDT  
 
* AT 552 PM CDT, A SEVERE THUNDERSTORM WAS LOCATED 9 MILES SOUTH OF  
DALLAS, OR 21 MILES NORTHEAST OF SPRINGVIEW, MOVING SOUTHEAST AT 15  
MPH.  
 
HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.  
 
SOURCE...TRAINED WEATHER SPOTTERS.  
 
IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL  
DAMAGE TO ROOFS, SIDING, WINDOWS, AND VEHICLES. EXPECT  
WIND DAMAGE TO ROOFS, SIDING, AND TREES.  
 
* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF  
SOUTHWESTERN GREGORY COUNTY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  
 

 
 
LAT...LON 4321 9954 4302 9921 4300 9926 4300 9953  
TIME...MOT...LOC 2252Z 305DEG 13KT 4310 9957  
 
HAIL...1.75IN  
WIND...60MPH  
 

 
 
HANKO  
 
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