Avalanche Forecast
Regions: Little Yoho.
Good skiing can be found at above treeline. Be mindful of Dec 18 surface hoar layer down 25-40 cm. It is widespread in this region at and below treeline and will become a greater issue with more load.
Weather Forecast
10-12 cm new over the day. The forecast is calling for cooler temperatures for tomorrow (-14C), light wind, and continued light flurries. We can expect another 10 cm through the weekend.
Snowpack Summary
The main issue currently is the Dec.18 layer which is down 25-40 cm and sits on a crust/surface hoar combination at elevations below 2100 meters and on a facet/surface hoar combination at higher elevations. The surface hoar appears to be more prevalent below 2100 meters. Easy to mod shears found on this interface. Wind effect found in the alpine.
Avalanche Summary
No new avalanches have been observed or reported. A large settlement was observed on the Dec 18 surface hoar down 30 cm by a group en route to Isolated Col (on Thursday) and by groups in the Emerald slide path (on Friday). Anything starting to slab up with wind effect seemed to produce the settlements.
Confidence
Due to the number and quality of field observations
Avalanche Problems
Wind Slabs
10-12 new today. Wind effect on Friday may have created small wind slabs in lee alpine terrain.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Possible - Likely
Expected Size: 1 - 2
Persistent Slabs
The Dec 18 interface is down 25-40 cm is producing easy to moderate results with field tests. This layer may become more reactive with the forecasted additional loading.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible - Likely
Expected Size: 1 - 2