I was working at a paper mill on the coast (maybe 15 yrs ago. I was an apprentice at the time).
I was about 280' up and had to walk out on this 8" beam, to hang a block for hoisting parts.
it stuck out about 16' from the rest of the structure, and there was nothing around or below it for the last 12' or so. it was out there so far that there was nothing practical to tie off to, so I just walked it. I got to the last couple feet and turned around, and as I was getting ready to sit-down and pull up the parts a wind gust hit me in mid turn.
I'm not sure how fast it was (over 30mph though not near 50), but it lasted for about 5-10 seconds. I had to really lean into it to keep from going over backward, then it just stopped real quick. somehow as I started to kinda fall forward, I managed to get my feet on the lower flange and land kinda squatting on the beam.
after I finished up out there I really couldn't work up the nerve to stand back up and had to scoot along the beam to get back to the landing. all in all I was fine but it really makes your butt pucker to look down from that hight when you aren't balanced.
on my way down the structure I saw a few ambulances headed into the mill. turns out the same wind-gust caught the hard-hat off of the head of a very inexperienced iron-worker, who was working for a non-union contractor on the other boiler. he reached for it instead of letting it go and took a 22' fall. unfortunately for him and his family his head caught a pipe that was about 2' above the Deck he landed on, it all but removed his head from his shoulders.
I got a small case of the shakes for a couple hours after that. his death really drove home how lucky I'd been to keep my feet under me.
I've had a few other very lucky breaks but that was the one that popped into my head just now.