Snowfall in October hung around on upper northwest, north and northeast facing slopes through a very dry November. The snow deteriorated during this time and formed a layer of loose sugary "faceted" snow. It is now buried with all the snow from the last few weeks. It is known to have produced at least minor natural slab avalanche activity. There have been many reports of the snowpack collapsing or "whoomping" underneath people as well as shooting cracks around them. All of this info tells us we are dealing with a buried "Persistent Weak Layer". This set up is likely to cause more avalanches over the next few weeks. You're only effective mitigation technique is avoidance. Avoid slopes over 30 degrees in steepness that are above 9000 feet and face northwest, north or northeast and you will stay out of avalanches.