Numerous severe thunderstorms brought large hail along with wind gusts from 60 to 90 mph to parts of north central and northeast South Dakota.  Numerous trees were downed along with many structures damaged.

Hail in DEWEY, SOUTH DAKOTA
From 27-AUG-13 21:00:00 to 27-AUG-13 21:00:00 (MST-7)
Location: ISABEL
Magnitude: 1.00 
Reported by: Public

Hail in DEWEY, SOUTH DAKOTA
From 27-AUG-13 22:15:00 to 27-AUG-13 22:15:00 (MST-7)
Location: FIRESTEEL
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 27-AUG-13 17:00:00 to 27-AUG-13 17:00:00 (MST-7)
Location: BLACK HORSE
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds downed several trees and damaged a few grain bins.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:05:00 to 28-AUG-13 05:05:00 (CST-6)
Location: REDFIELD ARPT
Magnitude: 78.00 EG
Reported by: Emergency Manager

Ninety mph winds snapped numerous trees off at their base along with destroying a garage and tipping several campers over onto their side at Cottonwood Lake.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:23:00 to 28-AUG-13 05:23:00 (CST-6)
Location: TULARE
Magnitude: 78.00 EG
Reported by: Public

Ninety mph winds downed several trees and blew out several windows in Tulare.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:25:00 to 28-AUG-13 05:25:00 (CST-6)
Location: TULARE
Magnitude: 78.00 EG
Reported by: NWS Employee

Ninety mph winds caused damage to the school.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:45:00 to 28-AUG-13 05:45:00 (CST-6)
Location: CRANDON
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds downed several trees and tree branches along with causing some power outages.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:45:00 to 28-AUG-13 05:45:00 (CST-6)
Location: REDFIELD ARPT
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds downed several trees.

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 27-AUG-13 17:15:00 to 27-AUG-13 17:15:00 (MST-7)
Location: BULLHEAD
Magnitude: 52.00 EG
Reported by: Trained Spotter

Sixty mph winds were estimated.

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 27-AUG-13 22:01:00 to 27-AUG-13 22:01:00 (CST-6)
Location: GORMAN
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DEWEY, SOUTH DAKOTA
From 27-AUG-13 22:50:00 to 27-AUG-13 22:50:00 (MST-7)
Location: GLENCROSS
Magnitude: 52.00 EG
Reported by: Public

Sixty mph winds were estimated.

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 28-AUG-13 03:00:00 to 28-AUG-13 03:00:00 (CST-6)
Location: GORMAN
Magnitude: 58.00 MG
Reported by: Mesonet

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 28-AUG-13 03:02:00 to 28-AUG-13 03:02:00 (CST-6)
Location: GORMAN
Magnitude: 58.00 MG
Reported by: Mesonet

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 28-AUG-13 03:15:00 to 28-AUG-13 03:15:00 (CST-6)
Location: GETTYSBURG ARPT
Magnitude: 60.00 MG
Reported by: Mesonet

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 28-AUG-13 04:20:00 to 28-AUG-13 04:20:00 (CST-6)
Location: POLO
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds snapped off two large cottonwood trees.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 28-AUG-13 04:40:00 to 28-AUG-13 04:40:00 (CST-6)
Location: MIRANDA
Magnitude: 70.00 MG
Reported by: Mesonet

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 28-AUG-13 05:20:00 to 28-AUG-13 05:20:00 (CST-6)
Location: TULARE
Magnitude: 79.00 MG
Reported by: Public

Thunderstorm Wind in CLARK, SOUTH DAKOTA
From 28-AUG-13 06:35:00 to 28-AUG-13 06:35:00 (CST-6)
Location: WILLOW LAKE
Magnitude: 61.00 EG
Reported by: Public

Seventy mph winds rolled a couple grain bins.