313  
WWUS53 KFSD 282351  
SVSFSD  
 
SEVERE WEATHER STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
651 PM CDT MON APR 28 2025  
 
IAC119-167-290030-  
/O.CON.KFSD.SV.W.0031.000000T0000Z-250429T0030Z/  
LYON IA-SIOUX IA-  
651 PM CDT MON APR 28 2025  
 
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT  
FOR LYON AND NORTHERN SIOUX COUNTIES...  
 
AT 651 PM CDT, A SEVERE THUNDERSTORM WAS LOCATED OVER INWOOD, OR 8  
MILES EAST OF CANTON, MOVING NORTHEAST AT 55 MPH.  
 
HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.  
 
SOURCE...RADAR INDICATED.  
 
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 STORM WILL BE NEAR...  
ROCK VALLEY, DOON, ALVORD, AND ROCK RAPIDS AROUND 655 PM CDT.  
 
OTHER LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE  
GEORGE AND LITTLE ROCK.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  
 

 
 
LAT...LON 4322 9648 4323 9657 4326 9655 4327 9659  
4330 9659 4329 9655 4331 9652 4336 9652  
4350 9613 4350 9586 4325 9586 4318 9647  
TIME...MOT...LOC 2351Z 244DEG 50KT 4330 9641  
 
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...1.50 IN  
WIND THREAT...RADAR INDICATED  
MAX WIND GUST...60 MPH  
 

 
 
WEISSER  
 
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