The video was like 2 hours long, and there were multiple tornadoes formed (8/17)
during the corse of the helicopter pilot "Mason Dunn" filming.
The you tube videos only have like a couple of minutes,
that don't do the "event" justice.
The whole 2 hours was tornado after tornado and funnel clouds forming
and trying to "touchdown"
Every other minute the pilot would shout "Tornado on the Ground!"
It was fuckin intense all those rotating funnel clouds.
For every tornado,
there were at least 2 large competing rotating "mezo cyclone" an upside down rotating cinnamon roll
They also call it a family of tornadoes.
They have some videos on you tube under "Hennessy Oklahoma tornado"