Great foto ! Whymper in its Memory talked about such type of cloud. First time I've seen it on Cervino. How was the weather before ? When I've seen it on Mont Blanc or some minor summit in Abruzzo the weather, after a couple of hours, became really bad.
"So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life."
--Peter Gibbons (Office Space)