An early morning storm system impacted parts of central and northeast South Dakota. While large hail fell in the Pierre area, parts of Hamlin and Deuel counties were the hardest hit experiencing winds over 80 mph along with large hail. Northwest of Castlewood, multiple power poles were downed blocking the intersection of Highways 81 and 22. In the city of Castlewood, winds caused structural and extensive tree damage, with wind-driven hail breaking windows and punching holes in siding. The assisted living center was evacuated due to damage on the north end of the building. Two of the residents at the center received minor injuries from broken glass. No travel was advised in the city due to debris blocking roadways. Further southeast, hail up to the size of golf balls damaged homes in the town of Astoria. Significant crop damage was also noted along the path of this storm.

Hail in CLARK, SOUTH DAKOTA
From 22-JUN-17 02:40:00 to 22-JUN-17 02:40:00 (CST-6)
Location: CARPENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DEUEL, SOUTH DAKOTA
From 22-JUN-17 02:51:00 to 22-JUN-17 02:51:00 (CST-6)
Location: ASTORIA
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball sized hail destroyed crops and damaged homes in and around Astoria.

Hail in STANLEY, SOUTH DAKOTA
From 22-JUN-17 03:00:00 to 22-JUN-17 03:00:00 (MST-7)
Location: LACY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HUGHES, SOUTH DAKOTA
From 22-JUN-17 04:19:00 to 22-JUN-17 04:19:00 (CST-6)
Location: (PIR)PIERRE ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STANLEY, SOUTH DAKOTA
From 22-JUN-17 03:19:00 to 22-JUN-17 03:19:00 (MST-7)
Location: FT PIERRE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 22-JUN-17 02:09:00 to 22-JUN-17 02:09:00 (CST-6)
Location: THOMAS
Magnitude: 70.00 EG
Reported by: Emergency Manager

Eighty mph winds downed 16 to 20 power poles southeast of Thomas.

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 22-JUN-17 02:10:00 to 22-JUN-17 02:10:00 (CST-6)
Location: CASTLEWOOD
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Eighty mph winds downed multiple trees blocking the intersection of Highways 81 and 22.

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 22-JUN-17 02:48:00 to 22-JUN-17 02:48:00 (CST-6)
Location: TORONTO
Magnitude: 61.00 EG
Property damage: 0.00K
Reported by: Trained Spotter

An estimated seventy mph wind along with hail layed downed and damaged several acres of corn.

Thunderstorm Wind in BUFFALO, SOUTH DAKOTA
From 22-JUN-17 03:35:00 to 22-JUN-17 03:35:00 (CST-6)
Location: GANN VLY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several bales of hay were blown over by estimated sixty mph winds.

Hail in HAMLIN, SOUTH DAKOTA
From 22-JUN-17 02:20:00 to 22-JUN-17 02:20:00 (CST-6)
Location: CASTLEWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HUGHES, SOUTH DAKOTA
From 22-JUN-17 02:08:00 to 22-JUN-17 02:08:00 (CST-6)
Location: (PIR)PIERRE ARPT
Magnitude: 1.75 
Reported by: Broadcast Media