Authorities have now confirmed that it was a tornado that tore through Northeast Iowa Monday, causing extensive damage to homes, outbuildings, trees and power lines.

Representatives from the National Weather Service toured Winneshiek County Tuesday, after a narrow, but strong storm system ripped through the area Monday night.

Photo from Winneshiek Co. Sheriff

After looking at the extent of the damage, the weather service determined that it was an EF-0 tornado that touched down at about 6:45pm Monday, around 2 miles west-southwest of Calmar, near Lake Meyer, and Fort Atkinson. Winds in the twister were estimated at 65 to 85 mph.

Numerous buildings in Fort Atkinson were also pummeled by large hail, damaging roofs, siding and windows.

Fortunately, no injuries were reported.