Approaching the storm about 10 miles east of Ottawa, KS. It was becoming more obvious that the structure on this thing was going to be amazing.

Finally getting the base in view, about 2 miles south of Rantoul, KS.

Cone funnel appears beneath the updraft base

I pull over and shoot it

Wow.

That rotation occludes (scuddy stuff in the middle) and a new wall cloud forms on the right edge

New wall cloud organizes quickly

Rotation tightens (note how vertical the right side is compared to the last shot) as a clear slot becomes evident to the left. There may be a tornado in this shot, in the middle of the wall cloud, but again, I'm enjoying the structure too far away from the base to have a definitive answer.