Avalanche Forecast

Good - Due to the number and quality of field observations

No major weather systems in sight for the near future, but flurries may produce small amount of precipitation. The next pacific system is forecast for Thursday and Friday. Freezing levels should remain around 1000m with a spike to over 2000m on Wednesday, then returning to the 1000m level.

In general, avalanche activity has tapered-off dramatically. However, an anomalous size 2 slab avalanche was skier triggered on Thursday on a steep, north-facing alpine slope. The exact failure plane is not known, although the depth of the crown (50-200cm) suggest it may have been a persistent weakness.Skier triggering of deeper weaknesses will remain unlikely, especially with forecast cooling; although small wind slabs are possible with light snowfall forecast for the weekend.

A thick supportive surface crust has capped the snowpack. Below the crust is the last storm snow which is around 50-70cm deep and sits on a previously variable snow surface that included wind affected surfaces, a freezing rain crust or sun crust, and/or surface hoar or sugary facets in sheltered terrain. In the middle of the snowpack there's a mid-December surface hoar or crust/facet weak layers. These are now typically buried at least 100cm below the surface. The old surface hoar layer may be found in sheltered shady areas at and below treeline, while the slightly deeper crust/facet layer is expected to be more widespread and variable.