Avalanche Forecast
Issued: Dec 18th, 2014 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
snow safety,
Parks Canada
A rotten base underlying slabs and crusts indicates the need for continued caution. The snowpack is blown out and shallow; watch for rocks.
Summary
Weather Forecast
A moderate SW flow is expected to bring very light snow, cloudy conditions, and warmer temperatures to the forecast area. Valley bottoms may get above the freezing mark.
Snowpack Summary
Wind slabs and facets dominate the Alpine snowpack. At treeline a very Rockies mixture of suncrusts, windslabs, facets and raincrusts present constant challenges. The basal weaknesses at treeline and above are waiting for a new load. Below treeline a rain crust is present and the snowpack is solidly frozen in most areas.
Avalanche Summary
No new avalanche activity was noted today.
Confidence
The weather pattern is stable
Problems
Deep Persistent Slabs
Natural avalanche activity has tapered off but snowpack tests show that the weak facets at the base of the snowpack continue to be a concern. With a stronger upper snowpack, triggering an avalanche is less likely but the consequences remain serious.
Be aware of the potential for full depth avalanches due to deeply buried weak layers.Be aware of thin areas that may propogate to deeper instabilites.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 19th, 2014 4:00PM
