(WKBN) – Over the past couple of days, National Weather Service meteorologists surveyed damage from Wednesday’s severe weather across the region. By Friday, three tornadoes were confirmed in western Pennsylvania, just outside of our viewing area.

A tornado tore through Butler County’s Center Township Wednesday afternoon, May 21, blowing the roof off a township-owned salt shed in the area of Mahood Road and its intersection with Sunset Drive,

The National Weather Service is out surveying storm damage in Butler County after Wednesday evening's confirmed tornado.It took just a few seconds, and now? Strewn-out wood and nails that stick out remain,