Severe thunderstorms affected the area bringing large hail up to tennis ball size along with damaging winds.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 10-JUN-12 01:10:00 to 10-JUN-12 01:10:00 (CST-6)
Location: EUREKA
Magnitude: 52.00 EG
Reported by: Public

Sixty mph winds were estimated by the public.

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 21:50:00 to 09-JUN-12 21:50:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 1.75 
Reported by: Public

Golf ball size hail stripped the siding on the west side of the house.

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 21:54:00 to 09-JUN-12 21:54:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 2.00 
Reported by: Trained Spotter

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 21:54:00 to 09-JUN-12 21:54:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in HUGHES, SOUTH DAKOTA
From 09-JUN-12 23:35:00 to 09-JUN-12 23:35:00 (CST-6)
Location: PIERRE
Magnitude: 1.25 
Reported by: Public

Half dollar size hail caused some tree and vehicle damage.

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 22:35:00 to 09-JUN-12 22:35:00 (MST-7)
Location: FT PIERRE
Magnitude: 2.50 
Reported by: Public

Tennis ball size hail caused major vehicle damage.

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 22:35:00 to 09-JUN-12 22:35:00 (MST-7)
Location: FT PIERRE
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in SULLY, SOUTH DAKOTA
From 09-JUN-12 23:40:00 to 09-JUN-12 23:40:00 (CST-6)
Location: FIELDER
Magnitude: 1.75 
Reported by: Public

Hail in STANLEY, SOUTH DAKOTA
From 09-JUN-12 23:05:00 to 09-JUN-12 23:05:00 (MST-7)
Location: FT PIERRE
Magnitude: 1.00 
Reported by: Public

Quarter size hail caused some shingle damage.

Hail in HYDE, SOUTH DAKOTA
From 10-JUN-12 01:00:00 to 10-JUN-12 01:00:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 1.00 
Reported by: Public

Hail in DAY, SOUTH DAKOTA
From 10-JUN-12 03:17:00 to 10-JUN-12 03:17:00 (CST-6)
Location: GRENVILLE
Magnitude: 1.00 
Reported by: Public

Hail in MARSHALL, SOUTH DAKOTA
From 10-JUN-12 03:20:00 to 10-JUN-12 03:20:00 (CST-6)
Location: HILLHEAD
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in SULLY, SOUTH DAKOTA
From 10-JUN-12 00:10:00 to 10-JUN-12 00:10:00 (CST-6)
Location: AGAR
Magnitude: 61.00 EG
Reported by: Public

Seventy mph winds downed a tree in the yard.

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 10-JUN-12 00:45:00 to 10-JUN-12 00:45:00 (CST-6)
Location: LOWRY
Magnitude: 52.00 EG
Reported by: Public

Sixty mph winds downed a large tree limb.

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 10-JUN-12 00:49:00 to 10-JUN-12 00:49:00 (CST-6)
Location: HOVEN
Magnitude: 52.00 EG
Reported by: Law Enforcement

Sixty mph winds downed a few branches in Hoven.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 10-JUN-12 00:50:00 to 10-JUN-12 00:50:00 (CST-6)
Location: HILLSVIEW
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds caused extensive damage to a pole barn along with destroying an outbuilding.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 10-JUN-12 00:55:00 to 10-JUN-12 00:55:00 (CST-6)
Location: HILLSVIEW
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds caused extensive damage to a large grain bin.

Thunderstorm Wind in STANLEY, SOUTH DAKOTA
From 09-JUN-12 22:10:00 to 09-JUN-12 22:10:00 (MST-7)
Location: ORTON
Magnitude: 70.00 MG
Reported by: COOP Observer