The National Weather Service has concluded that an EF1 tornado was responsible for the considerable damage to outbuildings southwest of Chadron on June 11.
The tornado, which occurred about 19 miles southwest of Chadron, snapped trees and telephone poles, destroyed at least eight outbuildings and damaged at least another eight buildings.
No injuries were reported and no homes appear to have been seriously damaged.
Maximum wind gusts were estimated at 110 mph, according to the weather service.
From the hit-and-miss pattern, it appears as if the tornado was on the ground for about a mile, grew to about 40 yards wide, and skipped a couple of times, the weather service reported.
The tornado touched down at 8:31 p.m and lifted about 8:38 p.m.. For more information, photos and map of the damage path, click here.
Source: National Weather Service/Cheyenne, Wyo.