Avalanche Forecast
Issued: Dec 6th, 2014 8:07AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
ali haeri,
Parks Canada
Keep an eye on the temperatures and type of precipitation that falls today and manage the terrain you are on or exposed to accordingly. Above 0 temperatures and rain falling will deteriorate the integrity of the upper snowpack.
Summary
Weather Forecast
Pacific frontal system moves in over the interior today bringing light to moderate snow with milder temperatures. A band of warm air aloft moving across the interior has created a temperature inversion nearing 0 degrees at 2000m. There is the possibility of freezing rain today. Winds are forecast to be light to moderate from the SW.
Snowpack Summary
5-10cm of light snow has buried the latest surface hoar layer. On steep solar aspects this layer formed a sun crust. The Nov 21 and Nov 9 persistent weak layers are buried down ~100 and ~130cm and are less reactive. The failure character of these layers is still sudden planer in snowpack tests. Breakable crust below ~1600m.
Avalanche Summary
No new avalanches were observed yesterday.
Confidence
Intensity of incoming weather systems is uncertain
Problems
Persistent Slabs
Trigger points for the persistent weak layers buried down ~1m and ~1.3m include steep alpine terrain, thin areas, and unsupported open slopes.
Be aware of thin areas that may propogate to deeper instabilites.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 7th, 2014 8:00AM
