A mid level disturbance combined with several surface boundaries, good wind shear, and instability brought several supercell thunderstorms to central and north central South Dakota. Large hail up to the size of softballs occurred with the storms.

Funnel Cloud in POTTER, SOUTH DAKOTA
From 21-JUN-07 05:20:00 to 21-JUN-07 05:20:00 (CST-6)
Location: HOVEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several reports of funnel clouds were received from the public in northwest Potter county.

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:30:00 to 21-JUN-07 07:30:00 (CST-6)
Location: ONIDA MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:32:00 to 21-JUN-07 07:32:00 (CST-6)
Location: ONIDA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:35:00 to 21-JUN-07 07:35:00 (CST-6)
Location: ONIDA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in HUGHES, SOUTH DAKOTA
From 21-JUN-07 07:40:00 to 21-JUN-07 07:40:00 (CST-6)
Location: HARROLD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:40:00 to 21-JUN-07 07:40:00 (CST-6)
Location: ONIDA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in HYDE, SOUTH DAKOTA
From 21-JUN-07 07:47:00 to 21-JUN-07 07:47:00 (CST-6)
Location: HOLABIRD
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in HYDE, SOUTH DAKOTA
From 21-JUN-07 08:02:00 to 21-JUN-07 08:02:00 (CST-6)
Location: HIGHMORE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in BUFFALO, SOUTH DAKOTA
From 21-JUN-07 08:30:00 to 21-JUN-07 08:30:00 (CST-6)
Location: GANN VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in BUFFALO, SOUTH DAKOTA
From 21-JUN-07 09:03:00 to 21-JUN-07 09:03:00 (CST-6)
Location: GANN VLY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel Cloud in SULLY, SOUTH DAKOTA
From 21-JUN-07 06:42:00 to 21-JUN-07 06:42:00 (CST-6)
Location: LAUREL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement spotted a funnel cloud east of Sutton Bay Recreation Area.

Funnel Cloud in HYDE, SOUTH DAKOTA
From 21-JUN-07 08:15:00 to 21-JUN-07 08:15:00 (CST-6)
Location: STEPHAN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A funnel cloud was spotted by a storm chaser.

Hail in EDMUNDS, SOUTH DAKOTA
From 21-JUN-07 01:35:00 to 21-JUN-07 01:35:00 (CST-6)
Location: BOWDLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MCPHERSON, SOUTH DAKOTA
From 21-JUN-07 01:35:00 to 21-JUN-07 01:35:00 (CST-6)
Location: EUREKA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in EDMUNDS, SOUTH DAKOTA
From 21-JUN-07 02:18:00 to 21-JUN-07 02:18:00 (CST-6)
Location: BOWDLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MCPHERSON, SOUTH DAKOTA
From 21-JUN-07 02:21:00 to 21-JUN-07 02:21:00 (CST-6)
Location: LANGLAKE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in EDMUNDS, SOUTH DAKOTA
From 21-JUN-07 02:27:00 to 21-JUN-07 02:27:00 (CST-6)
Location: BOWDLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in EDMUNDS, SOUTH DAKOTA
From 21-JUN-07 02:28:00 to 21-JUN-07 02:28:00 (CST-6)
Location: BOWDLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CAMPBELL, SOUTH DAKOTA
From 21-JUN-07 03:45:00 to 21-JUN-07 03:45:00 (CST-6)
Location: HERREID
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in HYDE, SOUTH DAKOTA
From 21-JUN-07 03:45:00 to 21-JUN-07 03:45:00 (CST-6)
Location: HOLABIRD
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 21-JUN-07 03:00:00 to 21-JUN-07 03:00:00 (MST-7)
Location: KELDRON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in POTTER, SOUTH DAKOTA
From 21-JUN-07 04:45:00 to 21-JUN-07 04:45:00 (CST-6)
Location: GETTYSBURG
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in POTTER, SOUTH DAKOTA
From 21-JUN-07 05:00:00 to 21-JUN-07 05:00:00 (CST-6)
Location: GETTYSBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CORSON, SOUTH DAKOTA
From 21-JUN-07 04:15:00 to 21-JUN-07 04:15:00 (MST-7)
Location: BLACK HORSE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DEWEY, SOUTH DAKOTA
From 21-JUN-07 04:40:00 to 21-JUN-07 04:40:00 (MST-7)
Location: TIMBER LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in POTTER, SOUTH DAKOTA
From 21-JUN-07 06:30:00 to 21-JUN-07 06:30:00 (CST-6)
Location: GETTYSBURG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 06:44:00 to 21-JUN-07 06:44:00 (CST-6)
Location: CLIFTON
Magnitude: 4.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in BUFFALO, SOUTH DAKOTA
From 21-JUN-07 09:03:00 to 21-JUN-07 09:03:00 (CST-6)
Location: GANN VLY
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in BUFFALO, SOUTH DAKOTA
From 21-JUN-07 09:05:00 to 21-JUN-07 09:05:00 (CST-6)
Location: GANN VLY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CAMPBELL, SOUTH DAKOTA
From 21-JUN-07 04:00:00 to 21-JUN-07 04:00:00 (CST-6)
Location: ARTAS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Sixty mph winds blew in a garage door.

Thunderstorm Wind in BUFFALO, SOUTH DAKOTA
From 21-JUN-07 08:20:00 to 21-JUN-07 08:20:00 (CST-6)
Location: FT THOMPSON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in POTTER, SOUTH DAKOTA
From 21-JUN-07 04:45:00 to 21-JUN-07 04:45:00 (CST-6)
Location: GETTYSBURG
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:40:00 to 21-JUN-07 07:40:00 (CST-6)
Location: ONIDA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:00:00 to 21-JUN-07 07:00:00 (CST-6)
Location: GALLAGHER
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SULLY, SOUTH DAKOTA
From 21-JUN-07 07:13:00 to 21-JUN-07 07:13:00 (CST-6)
Location: ONIDA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement