I was on a lift once with like 70 mph winds I think, the trees were swayin way hard and one broke off about 10 feet from the base.  It fell onto the lift cable in front of the chair in front of us.  All the chairs dropped like 20 feet and then bounced up like 5 from where they usually hang.  The tree then broke in half over the cable, one half was thrown up in the air and speared into the ground and the other half just fell off.  I was like 10 and was scared as fuck.