Granted, this is Montana but there is something to be learned from this one.
http://www.mtavalanche.com/video/youtube
http://www.mtavalanche.com/advisory/10/02/17
"Extreme luck was involved that no one was injured or killed". In particular, listen to the very end of Doug's audio in the second link to get the full impact from a very experienced Avy professional.
From the GNFAC website:
" SADDLE PEAK AVALANCHE
Take a hard look at the photos. If you skied off the summit on Monday and find that your tracks are now obliterated, I'm asking, "What did you do to arrive at the decision to ski that slope?" Now that it slid there's no real argument about whether it was stable or not. It wasn't. But hundreds thought it was good to go. Perhaps I would have been one of them. But I know I'd want to puke looking at those photos knowing how close I would have been to dying. Seeing other tracks in fresh powder is commonly mistaken as a sign of stability, but it's not. Folks think that slopes that get skied often are safer because the weak layer gets broken down and compacted by the tracks. But in this case the weak layer was impervious to tracks because it was preserved under a supportable hard slab. Supportable until yesterday.
Three inches of snow water equivalency fell in under 48 hours. Strong winds created drifts adding even more weight. And facets hibernating deep in the pack finally couldn't hold up any more snow. That's what happened.
We are extremely lucky. I could just as easily be writing my condolences to 15 families this morning. Many people would have died if the slope slid the day before or a few hours later. Most days skiers are stacked on top of one another exposed to avalanches from above. Luckily it was triggered early in the day with few skiers around. Consider this avalanche the one and only free wakeup call we'll ever get. There's a lot to learn. The slope slid on a beautiful day with many tracks on it. It was undeniably unstable yet provides us with an opportunity to re evaluate how we ski, make decisions and travel in the sidecountry. "
Just sayin'