A tornado watch has been issued for parts of southeastern South Dakota west of Sioux Falls until 10 p.m. Sunday.
The watch is in effect for the following counties: Aurora, Davison, Douglas, Hanson, Hutchinson, Jerauld, McCook, Miner, Sanborn and Turner.
The NWS says a couple of tornadoes are possible, as well as damaging wind gusts up to 75 mph and hail up to 2.5 inches in diameter.
More: Aberdeen-area storm with 80 mph gusts knocks over power poles, damages trees and crops
“A lone discrete supercell may persist for the next few hours across southeast South Dakota,” the NWS said in the watch summary.
Meanwhile, a severe thunderstorm watch has been issued for eastern and northeastern South Dakota until 9 p.m.
Damage reports across South Dakota
Large hail and damaging winds have been reported with storms in northeastern and southeastern South Dakota.
Here is a summary of storm reports as of 7 p.m.:
Quarter size: Edmunds County (near Cravens Corner); Brown County (Richmond Lake Rec area)
Ping pong size: Warner
Golf ball size: 10 miles north of Plankinton
Tennis ball size: In Spink County east of Mansfield.
Mina: 75 mph
Aberdeen (three miles north): 79 mph
Plankinton (10 miles north): 80 mph
A tornado was reported seven miles northeast of Lily in Day County. Damage reports are unknown.
* Branches were reported down in Columbia in Brown County, and some power lines were knocked down one mile east of Aberdeen.
* Leaning power polls and large branches were reported down in Richmond Lake Recreation Area.
* Major crop damage was reported in Columbia in Brown County.