This radar image shows a bow echo moving across southern Warren County which resulted in extensive damage.  The bow echo is embedded in a much larger line of storms stretching across the entire image, referred to as a squall line.  Bow echoes are shaped as an arc or a bow (hence the name).  The strongest winds are usually located near the apex of a bow echo (where it curves outward the most) and can reach hurricane-force speeds in excess of 70 mph, sometimes even as high as 100 mph.