Avalanche Forecast
Issued: Dec 21st, 2015 8:21AM
The alpine rating is Storm Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
An unsettled flow continues to affect the southern part of the province, bringing snow and cold temperatures. Models disagree on snowfall amounts, but most snow is likely to fall in the far south. Tuesday:Â 5-15 cm; Wednesday: 5-15 cm; Thursday: 5-20 cm. Winds are generally light, but may increase with the passage of frontal systems. Â The freezing level stays near surface. For more details check out http://www.avalanche.ca/weather.Â
Avalanche Summary
Skiers triggered numerous loose dry and soft slab avalanches on Sunday in the size 1-2 range. There were also numerous natural loose dry and storm slab avalanches out of steep terrain.
Snowpack Summary
Up to 50 cm of low density snow now covers various surfaces, including the reactive mid-December surface hoar. This surface hoar can be found on all aspects in protected areas, but does not seem to be widespread across the region. In many areas, the new snow sits on top of a thin rain crust. No matter what the new snow overlies, it is bonding poorly in most steep terrain. Moderate SW winds recently formed fresh wind slabs on lee features at treeline and in the alpine. At treeline elevation the early December crust, down around 50-100 cm, is thick and supportive, and may be capping deeper weaknesses. It may also be providing a good sliding surface for the odd larger avalanche.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 22nd, 2015 2:00PM