I was in a microburst once and it looked just like that... moderate gusts at first making the trees sway ...then all the sudden the trees laid over flat, as if on command, and instead of just tree branches flying... it was privacy fencing.
I have been through two derecho storms of over 100 mph and had some near miss tornados.
Was in tents at Fort Riley on the bluff above the Kaw River near Funston when a Derecho like a five mile wide tornado came across the valley laying trees down like grass. Awesome experience to be out in the weather like that. Had a GP Medium double roped and double stakes with 32” stakes and it broke ALL the ropes and the tent went a hundred yards which as it was wet and weighed wet about 300 pounds is pretty interesting. We had one GP Small we never found.