An upper level low pressure trough along with a stationary front combined with very unstable air to bring severe thunderstorms to parts of central and north central South Dakota during the morning hours. Winds gusting to one-hundred mph damaged grain bins, several structures, along with downing many trees.

Hail in WALWORTH, SOUTH DAKOTA
From 19-JUL-17 08:21:00 to 19-JUL-17 08:21:00 (CST-6)
Location: SELBY
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUL-17 09:20:00 to 19-JUL-17 09:20:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 87.00 EG
Reported by: CoCoRaHS

Estimated one-hundred mph winds downed many trees along with causing damage to several structures.

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUL-17 09:20:00 to 19-JUL-17 09:20:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 87.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

One-hundred mph winds destroyed four grain bins along with damaging several trailer homes that were being hauled on trailers.

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUL-17 09:21:00 to 19-JUL-17 09:21:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 78.00 EG
Crop damage: 0.00K
Reported by: Public

Several trees were knocked down by estimated ninety mph winds.

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 19-JUL-17 09:40:00 to 19-JUL-17 09:40:00 (CST-6)
Location: REE HGTS
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Eighty mph winds tipped over empty tanks on a trailer along with tipping a pontoon that was also on a trailer. Many large tree branches were also downed.

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 19-JUL-17 06:30:00 to 19-JUL-17 06:30:00 (MST-7)
Location: MAHTO
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 19-JUL-17 07:04:00 to 19-JUL-17 07:04:00 (MST-7)
Location: TRAIL CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Sixty mph winds were estimated.

Thunderstorm Wind in CAMPBELL, SOUTH DAKOTA
From 19-JUL-17 08:08:00 to 19-JUL-17 08:08:00 (CST-6)
Location: MOUND CITY
Magnitude: 61.00 EG
Reported by: Public

Seventy mph winds and hail caused some crop damage along with downing some trees.

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 19-JUL-17 08:15:00 to 19-JUL-17 08:15:00 (CST-6)
Location: SELBY
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Seventy mph winds were estimated.

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 19-JUL-17 08:40:00 to 19-JUL-17 08:40:00 (CST-6)
Location: JAVA
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Seventy mph winds were estimated.

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 19-JUL-17 08:48:00 to 19-JUL-17 08:48:00 (CST-6)
Location: GETTYSBURG
Magnitude: 56.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 19-JUL-17 08:53:00 to 19-JUL-17 08:53:00 (CST-6)
Location: AKASKA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Sixty mph winds were estimated.

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 19-JUL-17 09:01:00 to 19-JUL-17 09:01:00 (CST-6)
Location: LEBANON
Magnitude: 66.00 MG
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUL-17 09:22:00 to 19-JUL-17 09:22:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 87.00 MG
Reported by: Mesonet

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 19-JUL-17 09:34:00 to 19-JUL-17 09:34:00 (CST-6)
Location: POLO
Magnitude: 87.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A large metal shed had one wall and half of the roof destroyed by estimated one-hundred mph winds.

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 19-JUL-17 09:24:00 to 19-JUL-17 09:24:00 (CST-6)
Location: HIGHMORE ARPT
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated seventy mph winds downed a tree.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 19-JUL-17 09:30:00 to 19-JUL-17 09:30:00 (CST-6)
Location: LOYALTON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Sixty mph winds were estimated.

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 19-JUL-17 09:51:00 to 19-JUL-17 09:51:00 (CST-6)
Location: ST LAWRENCE
Magnitude: 50.00 MG
Crop damage: 0.00K
Reported by: Mesonet

Several tree branches were downed by the severe winds.