A strong surface low pressure area lifting northward across the western plains along with a strong warm front surging northward brought many severe thunderstorms to the region. Large hail up to the size of golfballs along with damaging winds up to 80 to 90 mph affected parts of central and north central South Dakota.

Thunderstorm Wind in HUGHES, SOUTH DAKOTA
From 24-MAY-10 18:38:00 to 24-MAY-10 18:38:00 (CST-6)
Location: (PIR)PIERRE ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in CORSON, SOUTH DAKOTA
From 24-MAY-10 17:57:00 to 24-MAY-10 17:57:00 (MST-7)
Location: LITTLE EAGLE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Sixty-five mph winds occurred south of McLaughlin along Highway 63.

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 24-MAY-10 19:05:00 to 24-MAY-10 19:05:00 (CST-6)
Location: (Y26)MOBRIDGE ARPT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 20:18:00 to 24-MAY-10 20:18:00 (CST-6)
Location: MINA
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in CAMPBELL, SOUTH DAKOTA
From 24-MAY-10 18:30:00 to 24-MAY-10 18:30:00 (CST-6)
Location: MOUND CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds were estimated near Mound City.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 20:05:00 to 24-MAY-10 20:05:00 (CST-6)
Location: MINA
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HYDE, SOUTH DAKOTA
From 24-MAY-10 19:25:00 to 24-MAY-10 19:25:00 (CST-6)
Location: HIGHMORE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 24-MAY-10 16:58:00 to 24-MAY-10 16:58:00 (CST-6)
Location: GETTYSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Sixty mph winds were estimated by the public.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 24-MAY-10 13:25:00 to 24-MAY-10 13:25:00 (CST-6)
Location: CHELSEA
Magnitude: 61.00 EG
Reported by: Public

Seventy mph winds were estimated south of Chelsea.

Thunderstorm Wind in LYMAN, SOUTH DAKOTA
From 24-MAY-10 14:05:00 to 24-MAY-10 14:05:00 (CST-6)
Location: KENNEBEC
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds were estimated north of Kennebec.

Thunderstorm Wind in CAMPBELL, SOUTH DAKOTA
From 24-MAY-10 17:30:00 to 24-MAY-10 17:30:00 (CST-6)
Location: POLLOCK
Magnitude: 56.00 EG
Reported by: County Official

Sixty-five mph winds were estimated in Pollock.

Thunderstorm Wind in HUGHES, SOUTH DAKOTA
From 24-MAY-10 19:15:00 to 24-MAY-10 19:15:00 (CST-6)
Location: HARROLD
Magnitude: 61.00 EG
Reported by: Public

A horse trailer carrying two horses was pushed to the side by the high winds in southeast Hughes county. The leaning horse trailer caused the pickup pulling it to lift off the ground. The horse trailer hit the side of the pickup and damaged it.

Thunderstorm Wind in WALWORTH, SOUTH DAKOTA
From 24-MAY-10 19:15:00 to 24-MAY-10 19:15:00 (CST-6)
Location: SELBY
Magnitude: 70.00 EG
Reported by: Newspaper

Eighty mph winds southwest of Selby destroyed a 60 by 120 foot pole barn and took off the top half of a silo. Two grain bins were also blown away along with several trees uprooted.

Funnel Cloud in POTTER, SOUTH DAKOTA
From 24-MAY-10 16:41:00 to 24-MAY-10 16:41:00 (CST-6)
Location: GORMAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in CODINGTON, SOUTH DAKOTA
From 24-MAY-10 00:00:00 to 24-MAY-10 00:00:00 (CST-6)
Location: WATERTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUGHES, SOUTH DAKOTA
From 24-MAY-10 00:14:00 to 24-MAY-10 00:14:00 (CST-6)
Location: PIERRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BROWN, SOUTH DAKOTA
From 24-MAY-10 00:47:00 to 24-MAY-10 00:47:00 (CST-6)
Location: GROTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in BUFFALO, SOUTH DAKOTA
From 24-MAY-10 12:10:00 to 24-MAY-10 12:10:00 (CST-6)
Location: SHELBY
Magnitude: 1.75 
Reported by: Public

Hail in LYMAN, SOUTH DAKOTA
From 24-MAY-10 13:10:00 to 24-MAY-10 13:10:00 (CST-6)
Location: KENNEBEC
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FAULK, SOUTH DAKOTA
From 24-MAY-10 13:35:00 to 24-MAY-10 13:35:00 (CST-6)
Location: CHELSEA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in BUFFALO, SOUTH DAKOTA
From 24-MAY-10 15:05:00 to 24-MAY-10 15:05:00 (CST-6)
Location: GANN VLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in BUFFALO, SOUTH DAKOTA
From 24-MAY-10 15:13:00 to 24-MAY-10 15:13:00 (CST-6)
Location: GANN VLY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LYMAN, SOUTH DAKOTA
From 24-MAY-10 15:16:00 to 24-MAY-10 15:16:00 (CST-6)
Location: VIVIAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HUGHES, SOUTH DAKOTA
From 24-MAY-10 15:54:00 to 24-MAY-10 15:54:00 (CST-6)
Location: PIERRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HUGHES, SOUTH DAKOTA
From 24-MAY-10 15:57:00 to 24-MAY-10 15:57:00 (CST-6)
Location: PIERRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 16:00:00 to 24-MAY-10 16:00:00 (CST-6)
Location: IPSWICH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 16:06:00 to 24-MAY-10 16:06:00 (CST-6)
Location: IPSWICH TAYLOR ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MCPHERSON, SOUTH DAKOTA
From 24-MAY-10 16:41:00 to 24-MAY-10 16:41:00 (CST-6)
Location: LEOLA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STANLEY, SOUTH DAKOTA
From 24-MAY-10 16:50:00 to 24-MAY-10 16:50:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in STANLEY, SOUTH DAKOTA
From 24-MAY-10 16:52:00 to 24-MAY-10 16:52:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in CORSON, SOUTH DAKOTA
From 24-MAY-10 18:05:00 to 24-MAY-10 18:05:00 (MST-7)
Location: LITTLE EAGLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 24-MAY-10 15:45:00 to 24-MAY-10 15:45:00 (CST-6)
Location: MILLER
Magnitude: 61.00 EG
Reported by: Emergency Manager

A semi was tipped over and damaged by seventy mph winds west of Miller.

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 24-MAY-10 15:57:00 to 24-MAY-10 15:57:00 (CST-6)
Location: POLO
Magnitude: 61.00 EG
Reported by: Public

Seventy mph winds ripped some steel off an outbuilding and also took the deck off of the house.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 24-MAY-10 16:09:00 to 24-MAY-10 16:09:00 (CST-6)
Location: FAULKTON
Magnitude: 70.00 EG
Reported by: Law Enforcement

Eighty mph winds downed many trees in Faulkton along with damaging shingles and the roofs of several buildings. The high winds also caused power outages in Faulkton for several hours.

Thunderstorm Wind in JONES, SOUTH DAKOTA
From 24-MAY-10 18:00:00 to 24-MAY-10 18:00:00 (CST-6)
Location: DRAPER
Magnitude: 61.00 EG
Reported by: Emergency Manager

Seventy mph winds overturned a semi truck on Interstate-90 east of Draper.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 24-MAY-10 20:35:00 to 24-MAY-10 20:35:00 (CST-6)
Location: MELLETTE
Magnitude: 52.00 EG
Reported by: Trained Spotter

The birdnest at the high school football field was blown down along with numerous branches downed in town.

Thunderstorm Wind in HAND, SOUTH DAKOTA
From 24-MAY-10 12:40:00 to 24-MAY-10 12:40:00 (CST-6)
Location: MILLER
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Fifty-nine mph winds were measured by the emergency manager in Miller.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 24-MAY-10 16:09:00 to 24-MAY-10 16:09:00 (CST-6)
Location: ORIENT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Sixty mph winds occurred south of Faulkton with no damage reported.

Thunderstorm Wind in FAULK, SOUTH DAKOTA
From 24-MAY-10 16:10:00 to 24-MAY-10 16:10:00 (CST-6)
Location: FAULKTON
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 16:25:00 to 24-MAY-10 16:25:00 (CST-6)
Location: IPSWICH
Magnitude: 78.00 MG
Reported by: Public

A ninety mph wind was measured at Pembrook Colony.

Thunderstorm Wind in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 16:30:00 to 24-MAY-10 16:30:00 (CST-6)
Location: IPSWICH
Magnitude: 70.00 EG
Reported by: Public

Eighty mph winds downed many trees in Ipswich.

Thunderstorm Wind in STANLEY, SOUTH DAKOTA
From 24-MAY-10 17:01:00 to 24-MAY-10 17:01:00 (MST-7)
Location: HAYES AIRSTRIP
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Sixty mph winds downed several tree branches.

Thunderstorm Wind in STANLEY, SOUTH DAKOTA
From 24-MAY-10 17:32:00 to 24-MAY-10 17:32:00 (MST-7)
Location: FT PIERRE
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in EDMUNDS, SOUTH DAKOTA
From 24-MAY-10 15:45:00 to 24-MAY-10 15:45:00 (CST-6)
Location: IPSWICH
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HUGHES, SOUTH DAKOTA
From 24-MAY-10 00:20:00 to 24-MAY-10 00:20:00 (CST-6)
Location: PIERRE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter