Holy sh!t that is one crazy dust devil! That one is easily compared to a F0 tornado.
I've only seen one fair sized DD... it was a few years back, we were camping at Pinery Park on Lake Huron... well we were at the beach, I see this big swirl of dust on the beach parking lot, probably about 4 feet wide, and about 8 feet tall. Well it seemed to have dispeared once it reached the end of the parking lot, but the parking lot is on a steep hill. All of a sudden, my sister is struggling to hold down our chairs, so I run over, the wind was really strong, it was almost difficult to hold the umbrella. Then everything just went dead calm. It was the best DD experience I ever had so far.