Mysterious Booms June 8th 2013
On Saturday June 8th, 2013 around 11:10 pm central time a mysterious boom was hear in Mitchell, SD and in the neighboring town of Mt Vernon nearly 12 miles to the west. Law enforcement and other agencies have no clue either what it was. It too was so loud it shook the windows and felt stronger that a transformer blowing up.
I just wanted to add this to your report of unfounded “Booms”