Avalanche Forecast
Issued: Dec 11th, 2017 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
william lawson,
Parks Canada
Though the deeper instabilities remain in the back of our minds, quality observations and significant weather swings with little avalanche activity have inspired confidence in the snowpack.
Summary
Weather Forecast
Cooling trend trend till thursday with freezing levels at valley bottom, No precipitation expected. Light South-South West winds in the alpine.
Snowpack Summary
There is a well settled snowpack in most locations. Widespread wind effected snow in the alpine with minimal ski penetration. The Halloween Oct 31 crust sits in the lower half snowpack with faceted crystals above and below between 2200 - 2900m.
Avalanche Summary
Highway 93 patrol. No avalanches reported.
Confidence
Due to the number and quality of field observations
Problems
Deep Persistent Slabs
Heavy loads , like natural cornice releases might trigger this deep instability.
Pay attention to overhead hazards like cornices which could trigger the deep persistent slab.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 12th, 2017 4:00PM
