A classic setup of strong snow over weak snow is developing on upper elevation, northerly aspects that retained snow from October snow. This October snow has become loose, weak, and sugary, or as we say, faceted. This faceted snow can form a persistent weak layer at the base of the snowpack. For now, this problem isn't particularly widespread, and places where it does exist - upper elevation, northerly facing slopes - are difficult to access because of low snow cover. But as more snow begins to increase the load on this buried, weak and sugary, facted layer, we'll need to start paying attention.

Photo illustrates a cohesive slab from the Dec 10 storm sitting on top of loose, weak, sugary faceted snow from October.

Potentially unstable, recent deposits of wind drifted may be found on upper elevation slopes facing W through N through SE. On northerly aspects, wind drifted snow has added additonal stress to weak, sugary snow underneath. Wind drifts are recognizable by their smooth, rounded appearance and cracking is a sign of instability. Avoid steep slopes with recent deposits of wind drifted snow.