A long-lived supercell thunderstorm moved southeastward from eastern Pennington County to Todd County and into north central Nebraska. The storm produced large hail, strong wind gusts, numerous funnel clouds, and a brief tornado near Parmalee. Damage along the storm's path included downed trees and minor damage to siding, roofs, and vehicles.

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 15:10:00 to 13-JUL-09 15:10:00 (MST-7)
Location: BELVIDERE
Magnitude: 2.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in TODD, SOUTH DAKOTA
From 13-JUL-09 17:35:00 to 13-JUL-09 17:35:00 (CST-6)
Location: PARMELEE
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A spotter observed a brief tornado in open area near the intersection of US Highway 18 and state Highway 63. Path length and width were estimated.

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 15:15:00 to 13-JUL-09 15:15:00 (MST-7)
Location: KADOKA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 16:53:00 to 13-JUL-09 16:57:00 (CST-6)
Location: CEDAR BUTTE
Magnitude: 2.75 
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Deputies and spotters reported quarter to baseball sized hail from Corn Creek at the junction of Highways 44 and 63 to Cedar Butte, which damaged automobiles.

Hail in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:25:00 to 13-JUL-09 17:25:00 (CST-6)
Location: NORRIS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:07:00 to 13-JUL-09 17:07:00 (CST-6)
Location: CEDAR BUTTE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:09:00 to 13-JUL-09 17:09:00 (CST-6)
Location: NORRIS
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large cottonwood trees were blown down.

Thunderstorm Wind in TODD, SOUTH DAKOTA
From 13-JUL-09 17:27:00 to 13-JUL-09 17:27:00 (CST-6)
Location: PARMELEE
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Hail in TODD, SOUTH DAKOTA
From 13-JUL-09 17:55:00 to 13-JUL-09 18:15:00 (CST-6)
Location: ROSEBUD
Magnitude: 4.25 
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Baseball to softball sized damaged buildings and automobiles in Rosebud.

Thunderstorm Wind in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:18:00 to 13-JUL-09 17:18:00 (CST-6)
Location: NORRIS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts were estimated around 65 mph.

Hail in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:20:00 to 13-JUL-09 17:20:00 (CST-6)
Location: NORRIS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in TODD, SOUTH DAKOTA
From 13-JUL-09 18:10:00 to 13-JUL-09 18:10:00 (CST-6)
Location: ST FRANCIS
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tree tops eight to ten inches in diameter were snapped off by strong southeast winds.

Thunderstorm Wind in TODD, SOUTH DAKOTA
From 13-JUL-09 18:20:00 to 13-JUL-09 18:20:00 (CST-6)
Location: ST FRANCIS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large tree branches were blown down.

Hail in TODD, SOUTH DAKOTA
From 13-JUL-09 18:30:00 to 13-JUL-09 18:30:00 (CST-6)
Location: ST FRANCIS
Magnitude: 2.75 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:20:00 to 13-JUL-09 14:25:00 (MST-7)
Location: COTTONWOOD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:22:00 to 13-JUL-09 14:22:00 (MST-7)
Location: COTTONWOOD
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:58:00 to 13-JUL-09 14:58:00 (MST-7)
Location: BELVIDERE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:48:00 to 13-JUL-09 14:48:00 (MST-7)
Location: KADOKA
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Wind gusts were estimated at 70 mph at Interstate 90 mile marker 143.

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:55:00 to 13-JUL-09 14:55:00 (MST-7)
Location: KADOKA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:55:00 to 13-JUL-09 14:55:00 (MST-7)
Location: KADOKA
Magnitude: 61.00 EG
Property damage: 150.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The combination of wind and hail damaged automobiles and buildings in Kadoka.

Thunderstorm Wind in MEADE, SOUTH DAKOTA
From 13-JUL-09 12:03:00 to 13-JUL-09 12:03:00 (MST-7)
Location: HEREFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Wind gusts were estimated at 60 mph.

Hail in PENNINGTON, SOUTH DAKOTA
From 13-JUL-09 13:11:00 to 13-JUL-09 13:11:00 (MST-7)
Location: WALL
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in PENNINGTON, SOUTH DAKOTA
From 13-JUL-09 13:22:00 to 13-JUL-09 13:22:00 (MST-7)
Location: WALL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in PENNINGTON, SOUTH DAKOTA
From 13-JUL-09 13:30:00 to 13-JUL-09 13:50:00 (MST-7)
Location: WALL
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 14:30:00 to 13-JUL-09 14:40:00 (MST-7)
Location: COTTONWOOD
Magnitude: 2.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JACKSON, SOUTH DAKOTA
From 13-JUL-09 15:05:00 to 13-JUL-09 15:05:00 (MST-7)
Location: BELVIDERE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MELLETTE, SOUTH DAKOTA
From 13-JUL-09 17:33:00 to 13-JUL-09 17:33:00 (CST-6)
Location: WHITE RIVER
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement