Thunderstorm produced large hail at numerous locations over much of southeast South Dakota during the morning of May 5th. The hail was accompanied by damaging wind gusts at one location, and by heavy rain and flash flooding at another place.

Hail in AURORA, SOUTH DAKOTA
From 05-MAY-12 07:05:00 to 05-MAY-12 07:05:00 (CST-6)
Location: PLANKINTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in AURORA, SOUTH DAKOTA
From 05-MAY-12 07:05:00 to 05-MAY-12 07:05:00 (CST-6)
Location: PLANKINTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BRULE, SOUTH DAKOTA
From 05-MAY-12 07:08:00 to 05-MAY-12 07:08:00 (CST-6)
Location: CHAMBERLAIN ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BRULE, SOUTH DAKOTA
From 05-MAY-12 07:10:00 to 05-MAY-12 07:10:00 (CST-6)
Location: CHAMBERLAIN ARPT
Magnitude: 1.75 
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large hail damaged vehicles, including 5 thousand dollars of damage to one pickup truck.

Hail in DAVISON, SOUTH DAKOTA
From 05-MAY-12 07:20:00 to 05-MAY-12 07:22:00 (CST-6)
Location: PLANKINTON
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Law Enforcement

Golf ball size hail damaged numerous vehicles and cracked windows. The hail also damaged siding. The amount of damage was not known.

Hail in DAVISON, SOUTH DAKOTA
From 05-MAY-12 07:28:00 to 05-MAY-12 07:35:00 (CST-6)
Location: BETTS
Magnitude: 2.50 
Crop damage: 0.00K
Reported by: Trained Spotter

Large hail caused an unknown amount of damage to vehicles and siding.

Hail in AURORA, SOUTH DAKOTA
From 05-MAY-12 07:40:00 to 05-MAY-12 07:40:00 (CST-6)
Location: WHITE LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large hail covered the ground and a road.

Hail in HANSON, SOUTH DAKOTA
From 05-MAY-12 07:56:00 to 05-MAY-12 07:56:00 (CST-6)
Location: FULTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large hail covered the ground.

Hail in HANSON, SOUTH DAKOTA
From 05-MAY-12 08:05:00 to 05-MAY-12 08:05:00 (CST-6)
Location: FARMER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 08:34:00 to 05-MAY-12 08:34:00 (CST-6)
Location: CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 08:45:00 to 05-MAY-12 08:45:00 (CST-6)
Location: MONTROSE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 09:00:00 to 05-MAY-12 09:00:00 (CST-6)
Location: SALEM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LAKE, SOUTH DAKOTA
From 05-MAY-12 09:07:00 to 05-MAY-12 09:07:00 (CST-6)
Location: CHESTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 09:12:00 to 05-MAY-12 09:12:00 (CST-6)
Location: SALEM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 09:12:00 to 05-MAY-12 09:12:00 (CST-6)
Location: CENTER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in MCCOOK, SOUTH DAKOTA
From 05-MAY-12 09:15:00 to 05-MAY-12 09:15:00 (CST-6)
Location: SALEM
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MOODY, SOUTH DAKOTA
From 05-MAY-12 09:20:00 to 05-MAY-12 09:20:00 (CST-6)
Location: COLMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MINNEHAHA, SOUTH DAKOTA
From 05-MAY-12 09:30:00 to 05-MAY-12 09:30:00 (CST-6)
Location: BUFFALO TRADING POST
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lots of large hail covered the ground.

Flash Flood in LAKE, SOUTH DAKOTA
From 05-MAY-12 09:30:00 to 06-MAY-12 00:00:00 (CST-6)
Location: FRANKLIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused flash flooding of roads and fields. Hail also fell and covered the ground.

Hail in BEADLE, SOUTH DAKOTA
From 05-MAY-12 09:35:00 to 05-MAY-12 09:35:00 (CST-6)
Location: VIRGIL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in BEADLE, SOUTH DAKOTA
From 05-MAY-12 09:45:00 to 05-MAY-12 09:45:00 (CST-6)
Location: WOLSEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large hail covered the ground.

Hail in MINNEHAHA, SOUTH DAKOTA
From 05-MAY-12 09:50:00 to 05-MAY-12 09:50:00 (CST-6)
Location: BALTIC
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KINGSBURY, SOUTH DAKOTA
From 05-MAY-12 11:20:00 to 05-MAY-12 11:20:00 (CST-6)
Location: ARLINGTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BROOKINGS, SOUTH DAKOTA
From 05-MAY-12 11:20:00 to 05-MAY-12 11:20:00 (CST-6)
Location: AHNBERG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in GREGORY, SOUTH DAKOTA
From 05-MAY-12 05:40:00 to 05-MAY-12 05:40:00 (CST-6)
Location: DIXON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHARLES MIX, SOUTH DAKOTA
From 05-MAY-12 06:00:00 to 05-MAY-12 06:00:00 (CST-6)
Location: ACADEMY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in BRULE, SOUTH DAKOTA
From 05-MAY-12 06:08:00 to 05-MAY-12 06:08:00 (CST-6)
Location: BIJOU HILLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in AURORA, SOUTH DAKOTA
From 05-MAY-12 06:50:00 to 05-MAY-12 06:50:00 (CST-6)
Location: WHITE LAKE
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Public

Large hail was accompanied by estimated 60 mph wind gusts. The wind driven hail caused an unknown amount of vehicle damage.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 05-MAY-12 06:50:00 to 05-MAY-12 06:50:00 (CST-6)
Location: WHITE LAKE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts to 60 mph were accompanied by golf ball size hail.

Hail in AURORA, SOUTH DAKOTA
From 05-MAY-12 06:52:00 to 05-MAY-12 06:52:00 (CST-6)
Location: WHITE LAKE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CHARLES MIX, SOUTH DAKOTA
From 05-MAY-12 05:50:00 to 05-MAY-12 05:50:00 (CST-6)
Location: ACADEMY
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DAVISON, SOUTH DAKOTA
From 05-MAY-12 07:39:00 to 05-MAY-12 07:45:00 (CST-6)
Location: MITCHELL
Magnitude: 2.50 
Property damage: 2.00M
Crop damage: 0.00K
Reported by: Trained Spotter

Large hail caused widespread damage to vehicles, buildings, and structures in and near Mitchell. In addition to dented vehicles and broken windows, the hail damaged the roofs and siding of homes and businesses. Two of the highest individual damage amounts included $175,000 to the Corn Palace, the roof of which needed replacing, and $100,000 damage to the roof of the Central Electric Cooperative Building. The roofs of numerous homes suffered lesser damages, and siding was also damaged. Damaged vehicles included several law enforcement and other city and county government vehicles.

Hail in BRULE, SOUTH DAKOTA
From 05-MAY-12 06:33:00 to 05-MAY-12 06:33:00 (CST-6)
Location: KIMBALL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter