Watch your exposure to the cold temperatures today, be careful not to get frostbite.
Weather Forecast
High pressure ridge over the interior maintaining cold and clear conditions. Trough will bring will bring light flurries and cloud to the region later tomorrow after which the ridge will rebuild until Thursday.
Snowpack Summary
120cm of storm snow has fallen over The Nov 21 surface hoar/sun crust layer now down ~ 90 and Nov 9 rain crust down ~110cm. Whoomphing and cracking are still being observed by backcountry users at around tree line. The Nov 28 rain crust is present to ~1500m.
Avalanche Summary
2 natural avalanches yesterday morning within the highway corridor east of the Rogers Pass summit size 2.0 and size 3.0. In the backcountry, There were large avalanches in the Asulkan Valley from 2 days ago off of the Ravens and Mt Jupiter filling the Mouse Trap.
Confidence
Due to the number of field observations
Problems
Persistent Slabs
Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.
Storm Slabs
Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.