I was skiing a bowl at night at Stevens Pass after a huge snowfall, which was then followed by below 10 degree temps and huge gusts of wind. The top layer of the pow pretty much had frozen over, and was crusty as hell. As long as you stayed on top or under it, it was great skiing.
Anyways, I'm riding 1080's, so I'm mostly punching through it. I aired off of a small windlip, and when I came back down through the layer, my right ski punched through first, throwing me off balance. I tumbled for about 30 feet with one ski. Looking back up, I saw the holes of my impact being filled in with snowy gusts of wind.
Hiking back up deep snow with a crusty layer on top is god awful, but I finally made it back up. Ski is nowhere. Searching around, I find that theres a lot of light powder filling the hole where I landed, from all the gusts of snow. I feel around, and nothing. After 5 minutes of searching, I feel a line of snow that's lighter than the rest. I follow it with my hands blindly, and after two feet of this 'tube' i hit the tail of my ski. The ski had somehow planed under the snow for a good 5 feet, bringing it to rest completely out of my tracks by a foot, covered by untouched snow. Soooooo lucky...
I moved to skiing trees for the rest of the night after that.