Strong storms that blew through northeast Iowa Wednesday night, left behind considerable damage.

In Clayton County, damage was so extreme, that all traffic going in and out of McGregor is limited to local residents until further notice. Portions of buildings were blown down on Main Street, including part of city hall. A shelter has been set up at St. Mary's Catholic Church in McGregor.

At a Thursday morning press conference, Clayton County authorities confirmed the storm damage in McGregor was caused by a tornado. The twister left many of the historic buildings in the Mississippi River town in ruins. To see photos of the damage and read the updated story, CLICK HERE.

In Winneshiek County, a tornado was reported near Fort Atkinson, but no one was injured, and no damages have been reported.

The National Weather Service (NWS) said wind gusts to 75 mph and heavy rain were reported Wednesday evening in several locations, including Sumner, Clermont and West Union. The storms knocked down trees and power lines, leaving hundreds of people without electricity. Here are some photos of the damage in Clermont, courtesy of the Fayette County Sheriff's Department.

 

Wednesday night's storms moved across the Mississippi River into southwest Wisconsin, where numerous trees and power lines were down in the city of Prairie du Chien. Electric crews are in the process of restoring power to the area.

One injury occurred when the storms blew through northeast Iowa.

Just before 6:30 p.m. Wednesday, Allamakee County sheriff's officials received a report that someone was trapped under a barn that was blown down near Waukon.

Authorities said 67-year-old Dennis Deal of Waukon was in the process of doing chores in the barn, when the structure was blown over by high thunderstorm winds. He was pinned beneath the barn.

Deal was found by First Responders, and taken to the Waukon Hospital for treatment; his condition was not known.