Thunderstorms caused damaging winds at numerous locations in southeast South Dakota before sunrise on the morning of June 22nd. Some of the winds spread away from the storms, still at damaging levels despite no longer being directly connected with the storms.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 03:58:00 to 22-JUN-15 04:01:00 (CST-6)
Location: GARRETSON
Magnitude: 87.00 EG
Property damage: 1.50M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thunderstorm winds estimated at 100 mph caused widespread damage to trees and power lines and damaged several homes. Many trees were blown over or completely uprooted. At least one house was completely destroyed, and others had parts of their roofs blown off. Windows were broken and a large camper was rolled several times and torn apart. Other vehicles were damaged, some severely by garage debris or falling trees. Grandstands at a baseball field were damaged. At least one barn and several silos and smaller structures at area farms were destroyed. The elevator in town was severely damaged. No injuries were reported.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 03:59:00 to 22-JUN-15 03:59:00 (CST-6)
Location: EAST SIOUX FALLS
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds caused widespread tree damage.

Thunderstorm Wind in BRULE, SOUTH DAKOTA
From 22-JUN-15 01:30:00 to 22-JUN-15 01:30:00 (CST-6)
Location: CHAMBERLAIN
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 22-JUN-15 03:10:00 to 22-JUN-15 03:10:00 (CST-6)
Location: PARKSTON ARPT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 03:40:00 to 22-JUN-15 03:40:00 (CST-6)
Location: HARTFORD
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds caused tree damage. One tree that was blown down damaged a mobile home.

High Wind in CHARLES MIX, SOUTH DAKOTA
From 22-JUN-15 03:41:00 to 22-JUN-15 03:41:00 (CST-6)
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds not directly associated with thunderstorms produced a measured gust to 68 mph 3 miles west of Geddes.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 03:48:00 to 22-JUN-15 03:48:00 (CST-6)
Location: ELLIS
Magnitude: 71.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused tree damage.

High Wind in KINGSBURY, SOUTH DAKOTA
From 22-JUN-15 03:55:00 to 22-JUN-15 03:55:00 (CST-6)
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds not directly associated with thunderstorms produced a measured gust to 81 mph 3 miles north northeast of De Smet.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 03:56:00 to 22-JUN-15 03:56:00 (CST-6)
Location: (FSD)JOE FOSS FLD SI
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 04:00:00 to 22-JUN-15 04:00:00 (CST-6)
Location: BALTIC
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

High Wind in CLAY, SOUTH DAKOTA
From 22-JUN-15 04:15:00 to 22-JUN-15 04:15:00 (CST-6)
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

High winds not directly associated with thunderstorms produced a measured gust to 60 mph 1 mile south southwest of Vermillion.

High Wind in BROOKINGS, SOUTH DAKOTA
From 22-JUN-15 04:35:00 to 22-JUN-15 04:35:00 (CST-6)
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High winds not directly associated with thunderstorms produced a measured gust to 64 mph at Brookings Airport.

High Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 04:45:00 to 22-JUN-15 04:45:00 (CST-6)
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds not directly associated with thunderstorms produced a measured gust to 63 mph at Sioux Falls Airport.

High Wind in BROOKINGS, SOUTH DAKOTA
From 22-JUN-15 04:55:00 to 22-JUN-15 04:55:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

High winds not directly associated with thunderstorms produced a measured gust to 59 mph at Brookings Airport.

High Wind in MINNEHAHA, SOUTH DAKOTA
From 22-JUN-15 05:09:00 to 22-JUN-15 05:09:00 (CST-6)
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

High winds not directly associated with thunderstorms produced a measured gust to 72 mph at Sioux Falls Airport.