Strong to severe storms moved through the Tenessee Valley on Wednesday evening and night. The National Weather Service in Huntsville has confirmed that an EF1 tornado touched down in DeKalb County. The tornado touched down 3 miles west/southwest of Powell and was on the ground for eight minutes.
During those eight minutes, it traveled near 6 miles and had a path width of 285 yards. The estimated peak winds were 104 mph.
The National Weather Service meteorologists surveyed the damage in the Powell community and determined the damage to be from a tornado with maximum winds of 104 mph. The tornado started just east of CR120 and first caused damage to a small outbuilding and uprooted trees. As it moved east, it snapped and uprooted more trees and also caused roof damage to several homes. The tornado went on to cause roof damage at Bluescope Steel.
Full Damage Survey report from the National Weather Service can be found here.