The upper snowpack comprises deep amounts of unconsolidated snow in sheltered locations, and soft slabs in open wind exposed terrain. I believe these slabs to be between 20 - 40 cm in depth and are most likely to be found immediately behind ridge crests and lee of mid slope terrain features like ribs. Overall, the top and mid-snowpack is reported to be settling well. Persistent and Deep Persistent instabilities (surface hoar and an early November crust, respectively) located in the middle and near the bottom of the snowpack may still be a concern but there's little recent evidence of them. It is important to know that we have very limited observations for this region. Digging down and making your own observations, especially in thinner snowpack areas, remains a good idea to assist safe slope selection. You're looking for weak layers that pop or drop in
stability tests.