Impressive UFO caught over Dodge City, KS

On May 24, 2016, during a storm, a man has photographed a very impressive UFO while he was in Dodge City, in the state of Kansas. What is it?

Witness statement:

I was storm chasing and did not notice this with my naked eye, but after looking at picture, I noticed the object in front of tornado.

I have picture to share, Raw file as well.

Not sure what it is, I do not think it is lens artifact, water spot, plane, debris or bird.
The object does not appear in frame right before or right after.