Widespread thunderstorms developed in south central South Dakota late in the afternoon and continued into the early evening.  The storms produced quite a swath of hail as they progressed across the area.

Hail in UNION, SOUTH DAKOTA
From 29-JUN-17 14:55:00 to 29-JUN-17 14:55:00 (CST-6)
Location: JEFFERSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in YANKTON, SOUTH DAKOTA
From 29-JUN-17 16:37:00 to 29-JUN-17 16:37:00 (CST-6)
Location: YANKTON
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report received through social media.

Hail in YANKTON, SOUTH DAKOTA
From 29-JUN-17 16:54:00 to 29-JUN-17 16:54:00 (CST-6)
Location: YANKTON
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social Media report.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 29-JUN-17 16:56:00 to 29-JUN-17 16:56:00 (CST-6)
Location: YANKTON
Magnitude: 71.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in YANKTON, SOUTH DAKOTA
From 29-JUN-17 17:02:00 to 29-JUN-17 17:02:00 (CST-6)
Location: GAYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in YANKTON, SOUTH DAKOTA
From 29-JUN-17 17:02:00 to 29-JUN-17 17:02:00 (CST-6)
Location: GAYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CLAY, SOUTH DAKOTA
From 29-JUN-17 17:17:00 to 29-JUN-17 17:17:00 (CST-6)
Location: VERMILLION
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in UNION, SOUTH DAKOTA
From 29-JUN-17 17:35:00 to 29-JUN-17 17:35:00 (CST-6)
Location: ALSEN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, SOUTH DAKOTA
From 29-JUN-17 14:50:00 to 29-JUN-17 14:50:00 (CST-6)
Location: HARRISON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, SOUTH DAKOTA
From 29-JUN-17 15:04:00 to 29-JUN-17 15:04:00 (CST-6)
Location: CORSICA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DOUGLAS, SOUTH DAKOTA
From 29-JUN-17 15:05:00 to 29-JUN-17 15:05:00 (CST-6)
Location: CORSICA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in YANKTON, SOUTH DAKOTA
From 29-JUN-17 16:48:00 to 29-JUN-17 16:48:00 (CST-6)
Location: YANKTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report.

Hail in DOUGLAS, SOUTH DAKOTA
From 29-JUN-17 15:05:00 to 29-JUN-17 15:05:00 (CST-6)
Location: CORSICA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in CHARLES MIX, SOUTH DAKOTA
From 29-JUN-17 15:20:00 to 29-JUN-17 15:20:00 (CST-6)
Location: RAVINIA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CHARLES MIX, SOUTH DAKOTA
From 29-JUN-17 15:25:00 to 29-JUN-17 15:25:00 (CST-6)
Location: GREENWOOD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HUTCHINSON, SOUTH DAKOTA
From 29-JUN-17 15:43:00 to 29-JUN-17 15:43:00 (CST-6)
Location: TRIPP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BON HOMME, SOUTH DAKOTA
From 29-JUN-17 15:45:00 to 29-JUN-17 15:45:00 (CST-6)
Location: TYNDALL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Wind gusts also estimated to be 50 to 55 mph. Four inch tree limbs were also downed.

Hail in BON HOMME, SOUTH DAKOTA
From 29-JUN-17 15:45:00 to 29-JUN-17 15:45:00 (CST-6)
Location: AVON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BON HOMME, SOUTH DAKOTA
From 29-JUN-17 16:24:00 to 29-JUN-17 16:24:00 (CST-6)
Location: SCOTLAND
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager