After some early morning severe thunderstorms produced large hail and severe winds, an outflow boundary descended southeast across north central and northeast South Dakota during the evening producing more severe thunderstorms for the region. Severe wind gusts up to near 100 mph, large hail up to golf balls, along with an EF2 tornado brought significant damage.

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 04-JUL-20 01:19:00 to 04-JUL-20 01:19:00 (MST-7)
Location: MC LAUGHLIN
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 04-JUL-20 02:06:00 to 04-JUL-20 02:06:00 (MST-7)
Location: BULLHEAD
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CAMPBELL, SOUTH DAKOTA
From 04-JUL-20 05:44:00 to 04-JUL-20 05:44:00 (CST-6)
Location: HERREID MUNI ARPT
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 17:18:00 to 04-JUL-20 17:18:00 (CST-6)
Location: SPRING CREEK COLONY
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Seventy mph winds were estimated.

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 04-JUL-20 18:45:00 to 04-JUL-20 18:45:00 (CST-6)
Location: RICHMOND
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 04-JUL-20 19:18:00 to 04-JUL-20 19:18:00 (CST-6)
Location: MINA
Magnitude: 57.00 MG
Crop damage: 0.00K
Reported by: NWS Employee

Sixty-five mph winds caused some spotty tree and building damage at Mina Lake.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 04-JUL-20 19:31:00 to 04-JUL-20 19:31:00 (CST-6)
Location: MINA
Magnitude: 74.00 MG
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 04-JUL-20 20:17:00 to 04-JUL-20 20:17:00 (CST-6)
Location: CHELSEA
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 04-JUL-20 21:09:00 to 04-JUL-20 21:09:00 (CST-6)
Location: TOLSTOY
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:35:00 to 04-JUL-20 18:45:00 (CST-6)
Location: WETONKA
Magnitude: 84.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

Multiple rounds of severe winds occurred at the residence.  There were very strong winds from the northwest along with south winds from the storm inflow. The most significant damage was done to a machine shop which lost the majority of the roof and walls.  Farm machinery was damaged including a seed drill which was rotated and a feed wagon which was rolled onto its side. An old barn was toppled. This damage primarily spread from northwest to southeast. Finally, a small outbuilding was tossed back to the north, likely from the strong southerly inflow winds.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:35:00 to 04-JUL-20 18:50:00 (CST-6)
Location: LONG LAKE COLONY
Magnitude: 84.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

Significant damage occurred to the Long Lake Hutterite Colony. Witnesses said two rounds of wind caused damage to the property. Southerly storm inflow winds ripped multiple roof panels off four separate turkey barns. Debris was spread to the west northwest. Additional damage was done to a feed mill and a machine shed was completely destroyed. Debris from these buildings was tossed from north northwest to south southeast. Other grain bin damage also occurred.  The total path length was about a half mile or slightly more.

Hail in CORSON, SOUTH DAKOTA
From 04-JUL-20 05:05:00 to 04-JUL-20 05:05:00 (MST-7)
Location: WAKPALA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FAULK, SOUTH DAKOTA
From 04-JUL-20 08:10:00 to 04-JUL-20 08:10:00 (CST-6)
Location: CHELSEA
Magnitude: 1.75 
Reported by: Public

Hail in WALWORTH, SOUTH DAKOTA
From 04-JUL-20 19:32:00 to 04-JUL-20 19:32:00 (CST-6)
Location: SELBY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FAULK, SOUTH DAKOTA
From 04-JUL-20 20:10:00 to 04-JUL-20 20:10:00 (CST-6)
Location: CHELSEA
Magnitude: 1.75 
Reported by: Public

Hail in WALWORTH, SOUTH DAKOTA
From 04-JUL-20 20:20:00 to 04-JUL-20 20:20:00 (CST-6)
Location: JAVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WALWORTH, SOUTH DAKOTA
From 04-JUL-20 20:30:00 to 04-JUL-20 20:30:00 (CST-6)
Location: JAVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in EDMUNDS, SOUTH DAKOTA
From 04-JUL-20 20:47:00 to 04-JUL-20 20:47:00 (CST-6)
Location: BOWDLE
Magnitude: 1.75 
Reported by: Trained Spotter

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 17:58:00 to 04-JUL-20 17:58:00 (CST-6)
Location: LANGLAKE
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:14:00 to 04-JUL-20 18:14:00 (CST-6)
Location: LEOLA
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Public

Estimated eighty mph wind downed a tree and collapsed a garage.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:30:00 to 04-JUL-20 18:30:00 (CST-6)
Location: WETONKA
Magnitude: 78.00 EG
Reported by: Trained Spotter

Estimated ninety mph winds brought several power poles down, trees and branches down, took part of a shop roof off, along with hay bales blown into different pastures.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:30:00 to 04-JUL-20 18:30:00 (CST-6)
Location: WETONKA
Magnitude: 70.00 EG
Reported by: Public

Tree and building damage from estimated eighty mph winds.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:35:00 to 04-JUL-20 18:35:00 (CST-6)
Location: LONG LAKE COLONY
Magnitude: 78.00 EG
Reported by: Public

Estimated ninety mph winds removed panels from a turkey barn roof and damaged a feed mill. A fire truck was completely destroyed.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:35:00 to 04-JUL-20 18:35:00 (CST-6)
Location: WETONKA
Magnitude: 78.00 EG
Reported by: Public

Estimated ninety mph winds destroyed a machine shed, an old barn, along with other outbuildings.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:40:00 to 04-JUL-20 18:40:00 (CST-6)
Location: WETONKA
Magnitude: 78.00 EG
Crop damage: 0.00K
Reported by: NWS Storm Survey

Estimated ninety mph winds tore the roof off a trailer home and uprooted trees.

Thunderstorm Wind in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:30:00 to 04-JUL-20 18:30:00 (CST-6)
Location: WETONKA
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Public

Significant damage was done to a machine shed by estimated eighty mph winds.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 04-JUL-20 19:30:00 to 04-JUL-20 19:30:00 (CST-6)
Location: CRAVEN
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Public

Estimated seventy mph winds damaged some barn doors along with downing some tree branches.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 04-JUL-20 19:32:00 to 04-JUL-20 19:32:00 (CST-6)
Location: MINA
Magnitude: 65.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A camper was tipped over and an evergreen tree was downed by estimated seventy-five mph winds.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 04-JUL-20 20:08:00 to 04-JUL-20 20:08:00 (CST-6)
Location: CHELSEA
Magnitude: 61.00 EG
Crop damage: 0.00K
Reported by: Public

Estimated seventy mph winds scattered several chemical bulk containers about the yard.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 04-JUL-20 20:14:00 to 04-JUL-20 20:14:00 (CST-6)
Location: FAULKTON MUNI ARPT
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated sixty mph winds brought down several large tree branches along with a dead tree. The dead tree fell onto a building.

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 04-JUL-20 20:30:00 to 04-JUL-20 20:30:00 (CST-6)
Location: POLO
Magnitude: 56.00 EG
Crop damage: 0.00K
Reported by: Public

Estimated sixty-five mph winds downed tree branches along with a few trees.

Tornado in MCPHERSON, SOUTH DAKOTA
From 04-JUL-20 18:35:00 to 04-JUL-20 18:39:00 (CST-6)
Location: WETONKA
Tornado F-scale: EF2
Reported by: NWS Storm Survey

A tornado touched down 3 miles north northwest of Wetonka causing significant damage to the Grassland Hutterite Colony.  A large machine shop lost the roof and wall. A large, empty, anchored grain bin was completely removed from its base and the adjacent feed mill was significantly damaged. A 400 foot by 80 foot turkey barn was completely destroyed along with a smaller outbuilding. Debris from these two buildings was scattered in many directions.  A trailer was flipped, freight storage unit rotated and two other outbuildings had complete loss of roof panels. Roof and siding damage occurred to many of the residential buildings. Tree and crop damage had also occurred. The tornado tracked over 2 miles southeast, crossing Mcpherson County Highway 23 and ending about one mile north northeast of Wetonka. Debris from the Grassland Colony was dispersed along the entire track of the tornado.