An isolated storm developed in the axis of greatest instability consisting of 1500+ J/kg MLCAPE and 1000 J/kg DCAPE.  For a couple hours, a balance of shear and instability supported a long track of damaging winds and spotty large hail from near Miller southeast to near Beresford. Measured winds from 60 to 80 mph were common.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 25-JUL-23 21:19:00 to 25-JUL-23 21:21:00 (CST-6)
Location: STICKNEY
Magnitude: 55.00 MG
Reported by: Public

Thunderstorm wind gusts as high as 63 mph were measured by a personal weather station 5 miles north-northeast of Stickney.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:25:00 to 25-JUL-23 21:27:00 (CST-6)
Location: MT VERNON
Magnitude: 60.00 MG
Reported by: Mesonet

Thunderstorm wind gusts as high as 69 mph were measured by South Dakota State University Mesonet site VNMS2 at Mt. Vernon.

Hail in AURORA, SOUTH DAKOTA
From 25-JUL-23 21:14:00 to 25-JUL-23 21:16:00 (CST-6)
Location: STORLA
Magnitude: 1.00 
Reported by: Emergency Manager

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:52:00 to 25-JUL-23 21:53:00 (CST-6)
Location: ETHAN
Magnitude: 55.00 MG
Reported by: Public

Thunderstorm wind gusts as high as 63 mph were measured by a hand-held anemometer 1 mile west-northwest of Ethan.

Thunderstorm Wind in HANSON, SOUTH DAKOTA
From 25-JUL-23 22:04:00 to 25-JUL-23 22:05:00 (CST-6)
Location: ROCKPORT
Magnitude: 70.00 MG
Reported by: Storm Chaser

A thunderstorm wind gust of 80 mph was measured by a hand-held anemometer.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 25-JUL-23 22:24:00 to 25-JUL-23 22:26:00 (CST-6)
Location: CLAYTON
Magnitude: 54.00 MG
Reported by: Trained Spotter

Thunderstorm wind gusts as high as 62 mph were measured by a personal weather station 2 miles west of Clayton, with several small tree limbs down.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 25-JUL-23 22:31:00 to 25-JUL-23 22:33:00 (CST-6)
Location: WOLF CREEK
Magnitude: 57.00 MG
Reported by: Trained Spotter

Thunderstorm wind gusts as high as 66 mph were measured by a personal weather station 5 miles southeast of Clayton.

Thunderstorm Wind in HANSON, SOUTH DAKOTA
From 25-JUL-23 21:53:00 to 25-JUL-23 21:56:00 (CST-6)
Location: ROCKPORT
Magnitude: 74.00 EG
Reported by: Emergency Manager

One grain bin was tossed for one-half mile, another collapsed, and two others damaged by thunderstorm wind gusts.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:30:00 to 25-JUL-23 21:32:00 (CST-6)
Location: MT VERNON
Magnitude: 70.00 EG
Reported by: Public

Widespread large tree damage and power outages reported in and near Mt. Vernon.

Hail in MINNEHAHA, SOUTH DAKOTA
From 25-JUL-23 23:55:00 to 25-JUL-23 23:57:00 (CST-6)
Location: GARRETSON
Magnitude: 0.75 
Reported by: Public

Hail in TURNER, SOUTH DAKOTA
From 25-JUL-23 23:28:00 to 25-JUL-23 23:31:00 (CST-6)
Location: CENTERVILLE
Magnitude: 0.88 
Reported by: Public

Pea to nickel size hail lasted for several minutes.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:27:00 to 25-JUL-23 21:30:00 (CST-6)
Location: LOOMIS
Magnitude: 70.00 EG
Reported by: Emergency Manager

Thunderstorm winds downed several trees in Loomis.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 22:02:00 to 25-JUL-23 22:04:00 (CST-6)
Location: ETHAN
Magnitude: 70.00 EG
Reported by: Emergency Manager

Several large tree branches and a couple smaller trees were downed by thunderstorm winds.  Minor shingle loss was reported on one home.

Thunderstorm Wind in HANSON, SOUTH DAKOTA
From 25-JUL-23 21:56:00 to 25-JUL-23 21:59:00 (CST-6)
Location: ROCKPORT
Magnitude: 74.00 EG
Reported by: Emergency Manager

Roof was blown off a cattle barn and another barn roof was damaged.

Thunderstorm Wind in HANSON, SOUTH DAKOTA
From 25-JUL-23 21:52:00 to 25-JUL-23 21:55:00 (CST-6)
Location: ROCKPORT
Magnitude: 70.00 EG
Reported by: Emergency Manager

Several trees and large limbs were broken by thunderstorm winds.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:07:00 to 25-JUL-23 21:09:00 (CST-6)
Location: MT VERNON
Magnitude: 61.00 MG
Reported by: Fire Department/Rescue

Hail in AURORA, SOUTH DAKOTA
From 25-JUL-23 21:12:00 to 25-JUL-23 21:14:00 (CST-6)
Location: STORLA
Magnitude: 0.88 
Crop damage: 32.00K
Reported by: Emergency Manager

Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 25-JUL-23 21:55:00 to 25-JUL-23 21:56:00 (CST-6)
Location: ETHAN
Magnitude: 65.00 MG
Reported by: Public

A thunderstorm wind gust of 75 mph was measured by a hand-held anemometer 1 mile west-northwest of Ethan.

Thunderstorm Wind in JERAULD, SOUTH DAKOTA
From 25-JUL-23 20:00:00 to 25-JUL-23 20:02:00 (CST-6)
Location: WESSINGTON SPGS
Magnitude: 54.00 MG
Reported by: Public

Thunderstorm wind gusts as high as 62 mph were measured on a personal weather station 13 miles west-northwest of Wessington Springs.