An upper level disturbance crossing from Illinois to Indiana sparked strong thunderstorms across the Ohio Valley during the afternoon and evening hours of Wednesday, June 26, 2013. An inital burst of storms formed over southeast Illinois and took the form of a large bow echo as they charged southeast through southern Indiana, Louisville, and into the Kentucky Blue Grass. Then, new storms fired up right behind the bow echo. The new area of storms intensified rapidly and formed a line as they roared into central Kentucky. The second line of storms was responsible for widespread wind damage and two tornadoes.