Strong frontal forcing resulted in the redevelopment of elevated thunderstorms during the very early morning to the west of the band from the previous evening.  Storms quickly became linear with the development of a couple of mesovortices, which were the focus of damaging winds while tracking northeast along the line.  Heavy training rainfall brought areas of flooding.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 09-JUN-20 04:39:00 to 09-JUN-20 04:42:00 (CST-6)
Location: PLANKINTON
Magnitude: 51.00 MG
Reported by: Mesonet

A personal weather station measured a wind gust to 59 mph.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:00:00 to 09-JUN-20 05:05:00 (CST-6)
Location: MT VERNON
Magnitude: 70.00 EG
Property damage: 45.00K
Reported by: Emergency Manager

Numerous trees were uprooted or snapped throughout Mt. Vernon. Property damage costs are rough estimates.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 09-JUN-20 04:38:00 to 09-JUN-20 04:42:00 (CST-6)
Location: STICKNEY
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 4.00K
Reported by: Emergency Manager

Extensive damage occurred to a grain bin, with minor damage done to the roof of a pole barn. Property damage costs are rough estimates.

Thunderstorm Wind in DOUGLAS, SOUTH DAKOTA
From 09-JUN-20 04:33:00 to 09-JUN-20 04:37:00 (CST-6)
Location: HARRISON
Magnitude: 70.00 EG
Property damage: 30.00K
Reported by: Emergency Manager

A concrete silo was toppled and a door to a metal shed bent inward. Property damage costs are rough estimates.

Thunderstorm Wind in DOUGLAS, SOUTH DAKOTA
From 09-JUN-20 04:35:00 to 09-JUN-20 04:39:00 (CST-6)
Location: HARRISON
Magnitude: 74.00 EG
Property damage: 50.00K
Reported by: Emergency Manager

A farmstead suffered damage to several trees and two grain bins.  A concrete silo was toppled. Property damage costs are rough estimates.

Thunderstorm Wind in DOUGLAS, SOUTH DAKOTA
From 09-JUN-20 04:36:00 to 09-JUN-20 04:40:00 (CST-6)
Location: HARRISON
Magnitude: 74.00 EG
Property damage: 35.00K
Reported by: Emergency Manager

On a farmstead, a concrete silo was toppled, trees uprooted, and windows broken on the house. Property damage costs are rough estimates.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 09-JUN-20 04:40:00 to 09-JUN-20 04:44:00 (CST-6)
Location: STICKNEY
Magnitude: 70.00 EG
Property damage: 25.00K
Reported by: Emergency Manager

Cattle and calf shelters were damaged.  Several calves were killed. Property damage costs are rough estimates.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 09-JUN-20 04:43:00 to 09-JUN-20 04:47:00 (CST-6)
Location: STICKNEY
Magnitude: 70.00 EG
Property damage: 35.00K
Reported by: Emergency Manager

A pole barn was significantly damaged. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 04:49:00 to 09-JUN-20 04:52:00 (CST-6)
Location: MT VERNON
Magnitude: 74.00 EG
Property damage: 60.00K
Reported by: Public

A barn was destroyed, along with damage to the roof and siding of a home. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 04:58:00 to 09-JUN-20 05:00:00 (CST-6)
Location: MT VERNON
Magnitude: 78.00 EG
Property damage: 80.00K
Reported by: Emergency Manager

The main floor of a home was destroyed.  A detached garage was also destroyed. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:00:00 to 09-JUN-20 05:05:00 (CST-6)
Location: MT VERNON
Magnitude: 70.00 EG
Property damage: 50.00K
Reported by: Emergency Manager

Several power poles were downed or snapped by wind. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:06:00 to 09-JUN-20 05:09:00 (CST-6)
Location: MT VERNON
Magnitude: 65.00 EG
Property damage: 25.00K
Reported by: Emergency Manager

Portions of a hog barn roof were blown off. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:08:00 to 09-JUN-20 05:12:00 (CST-6)
Location: MITCHELL
Magnitude: 56.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Numerous three inch limbs were taken down, along with a few power poles. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:08:00 to 09-JUN-20 05:13:00 (CST-6)
Location: MITCHELL
Magnitude: 61.00 EG
Property damage: 50.00K
Reported by: Emergency Manager

Numerous trees were uprooted or snapped throughout Mitchell. Property damage costs are rough estimates.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 09-JUN-20 05:10:00 to 09-JUN-20 05:13:00 (CST-6)
Location: MITCHELL
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Several large branches were removed from trees, and a pickup topper was blown down the street. Property damage costs are rough estimates.

Flash Flood in AURORA, SOUTH DAKOTA
From 09-JUN-20 12:10:00 to 09-JUN-20 14:30:00 (CST-6)
Location: STICKNEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several county roads were flooded.  Rainfall overnight and through the morning totalled 3.94 inches at Corsica and 3.33 inches 10 miles west of Dimock. Property damage costs are rough estimates.

Flash Flood in DOUGLAS, SOUTH DAKOTA
From 09-JUN-20 12:10:00 to 09-JUN-20 14:30:00 (CST-6)
Location: HILLSIDE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

County roads were flooded from rainfall averaging from 3 to 4 inches across the area. 3.94 inches of rainfall occurred during the overnight and morning hours at Corsica, with 3.33 inches 10 miles west of Dimock. Property damage costs are rough estimates.

Flash Flood in CHARLES MIX, SOUTH DAKOTA
From 09-JUN-20 12:15:00 to 09-JUN-20 14:30:00 (CST-6)
Location: PICKSTOWN
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several county roads were flooded from rainfall which averaged 3 to 4 inches around the area during the overnight and morning hours.  Up to 3.95 inches rainfall occurred near Pickstown. Property damage costs are rough estimates.

Thunderstorm Wind in DOUGLAS, SOUTH DAKOTA
From 09-JUN-20 04:33:00 to 09-JUN-20 04:38:00 (CST-6)
Location: HARRISON
Magnitude: 56.00 EG
Property damage: 5.00K
Reported by: Emergency Manager

Damage was done to several trees, and the covering was ripped off a hoop barn. Property damage costs are rough estimates.