Avalanche Forecast
Issued: Apr 8th, 2017 7:07PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs, Cornices and Wind Slabs.
snow safety,
Avalanche Canada
It is still possible to trigger larger avalanches in isolated areas, Careful and continues evaluation of the snowpack through the day is necessary.
Summary
Weather Forecast
Convective flurries are expected sunday with up to 10cm of snow accumulation at higher elevations. Temperatures are expected to remain cooler with freezing levels dropping to valley bottom tonight and climbing to 1600m by mid day Sunday.
Snowpack Summary
Over 10cm Friday above 2000m, expect loading specific to ridge crest with new windslab development. Lower elevation snowpack remaind intact with cooler temperatures, snow melt was isolated to valley bottom. The deep persistent problem remains in the snowpack with much uncertainty encompassing it. avoidance of large slopes is still recommended.
Avalanche Summary
Small wind slab in the alpine produces skier triggered avalanches to size 1.5. No new natural avalanches observed.
Confidence
Problems
Deep Persistent Slabs
The snowpack is generally unstable, despite the strong feel of the surface layers. This layer remains reactive in snowpack test and can produced large avalanches. Patience is a virtue with this kind of problem.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Cornices
April is cornice season, and we are getting regular reports of cornices failing and triggering deep slabs. Mature cornices can propagate much further than you expect, so give them a wide margin when traveling on ridges.
- Avoid steep slopes below cornices.
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Newly formed windlslab isolated to lee slopes in the alpine. Reports of skier triggered avalanches to size 1.5.
Aspects: North, North East, East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Apr 9th, 2017 4:00PM
