Thunderstorms produced damaging winds and flash flooding at several locations in southeast South Dakota from late evening on June 22nd to after midnight on June 23rd.

Flash Flood in UNION, SOUTH DAKOTA
From 22-JUN-10 23:45:00 to 23-JUN-10 04:00:00 (CST-6)
Location: NORA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain caused flash flooding of several roads. The rain also caused Union Creek to overflow, flooding nearby lowlands.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 22-JUN-10 23:55:00 to 22-JUN-10 23:55:00 (CST-6)
Location: DE SMET MUNI ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused tree damage, including several branches blown down.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 22-JUN-10 23:56:00 to 22-JUN-10 23:56:00 (CST-6)
Location: DE SMET MUNI ARPT
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused tree damage, including several large branches blown down.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 23-JUN-10 00:15:00 to 23-JUN-10 00:15:00 (CST-6)
Location: LYONS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds caused tree damage, including a large branch blown down and blocking a road.

Thunderstorm Wind in BRULE, SOUTH DAKOTA
From 22-JUN-10 21:34:00 to 22-JUN-10 21:34:00 (CST-6)
Location: CHAMBERLAIN ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds caused tree damage, including several branches blown down.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 22-JUN-10 23:00:00 to 22-JUN-10 23:00:00 (CST-6)
Location: LESTERVILLE
Magnitude: 85.00 MG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds damaged grain bins, caused damage to several roofs, and caused tree damage, including several trees uprooted.

Flash Flood in CLAY, SOUTH DAKOTA
From 22-JUN-10 23:01:00 to 23-JUN-10 01:00:00 (CST-6)
Location: WESTERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused flash flooding of rural roads and low areas.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 22-JUN-10 23:08:00 to 22-JUN-10 23:08:00 (CST-6)
Location: HURON
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in SANBORN, SOUTH DAKOTA
From 22-JUN-10 23:10:00 to 22-JUN-10 23:10:00 (CST-6)
Location: ARTESIAN
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds blew down numerous branches, some up to  8 inches in diameter.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 22-JUN-10 23:11:00 to 22-JUN-10 23:11:00 (CST-6)
Location: HURON
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds destroyed a pole barn, and peeled back the roof of a timber supply center building.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 22-JUN-10 23:30:00 to 22-JUN-10 23:30:00 (CST-6)
Location: IROQUOIS
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds damaged shingles on a few homes and caused tree damage, including several trees blown down.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 22-JUN-10 23:06:00 to 22-JUN-10 23:06:00 (CST-6)
Location: HURON
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS