364
WWUS53 KFSD 180744
SVSFSD
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
244 AM CDT TUE AUG 18 2026
SDC053-180753-
/O.CAN.KFSD.SV.W.0233.000000T0000Z-260818T0815Z/
GREGORY SD-
244 AM CDT TUE AUG 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GREGORY COUNTY IS
CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE, THE WARNING HAS BEEN CANCELLED.
LAT...LON 4371 9941 4376 9942 4383 9932 4387 9931
4359 9881 4338 9908 4340 9915 4344 9917
4344 9924 4348 9931 4353 9928 4358 9934
4364 9935 4368 9946
TIME...MOT...LOC 0743Z 298DEG 45KT 4358 9927
SDC015-023-180815-
/O.CON.KFSD.SV.W.0233.000000T0000Z-260818T0815Z/
CHARLES MIX SD-BRULE SD-
244 AM CDT TUE AUG 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR NORTHWESTERN CHARLES MIX AND SOUTHWESTERN BRULE COUNTIES...
AT 243 AM CDT, A SEVERE THUNDERSTORM WAS LOCATED 8 MILES EAST OF
IONA, OR 14 MILES SOUTH OF CHAMBERLAIN, MOVING SOUTHEAST AT 50 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHWESTERN CHARLES MIX AND SOUTHWESTERN BRULE COUNTIES, INCLUDING
THE FOLLOWING LOCATIONS... PUKWANA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
SIOUX FALLS.
LAT...LON 4371 9941 4376 9942 4383 9932 4387 9931
4359 9881 4338 9908 4340 9915 4344 9917
4344 9924 4348 9931 4353 9928 4358 9934
4364 9935 4368 9946
TIME...MOT...LOC 0743Z 298DEG 45KT 4358 9927
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
SAMET
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