A bow echo is a meteorological term used to describe a curved line of thunderstorms that appears on weather radar.
The damage patterns noted in the park appear to correlate with straight line winds, rather than tornadoes ... Saturday's storm is that it caused tornado vortex signatures to appear on local ...
but so far none of the “twisting” signatures in tornado debris has been reported. “As of right now it looks like it was primarily straight-line wind damage that occurred across the area ...