582  
NWUS53 KFSD 172055  
LSRFSD  
 
PRELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
355 PM CDT SUN MAY 17 2026  
   
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON  
   
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.  
 
..REMARKS..  
 
0315 PM TSTM WND DMG 2 S TYNDALL 42.96N 97.86W  
05/17/2026 BON HOMME SD TRAINED SPOTTER  
 
65 TO 70 MPH DOWNED SMALL TREES. QUARTER  
SIZED HAIL ALSO OCCURRED.  
 
 
 
 
 
TH  
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