Avalanche Forecast
Issued: Jan 22nd, 2014 8:51AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
ccampbell,
Avalanche Canada
Summary
Confidence
Good
Weather Forecast
Thursday: A mix of sun and cloud. Freezing levels nearing 2000m with moderate westerly winds. Friday and Saturday: A mix of sun and cloud with light winds and freezing levels over 3000 m. Temperature at 2000m could reach as high as +10 C, but valley bottoms could be slightly cooler.
Avalanche Summary
No significant avalanches have been reported for several days.
Snowpack Summary
Unseasonably warm daytime temperatures and sun-exposure have subjected the snow surface to melt-freeze cycles on lower elevation and sun-exposed slopes. On shady aspects expect to find faceted powder; however, in exposed areas winds have scoured windward slopes, left deep drifts on lee aspects, and and sculpted sastrugi. A facet/crust combo from late November down approximately 100-120 cm at treeline and alpine elevations continues to give sudden results in snowpack tests. Facets and depth hoar at the base of the snowpack remain a concern on slopes with a shallow and variable snowpack in the Duffey Lake and Chilcotin areas.
Problems
Deep Persistent Slabs
Particularly a concern on shallow rocky southern aspects with heavy triggers. Warm temperature and sun-exposure are expected to increase the likelihood of triggering these facets deep in the snowpack. Cornice falls could also act as natural triggers.
Be aware of the potential for large, deep avalanches.>Avoid convex rolls at treeline where buried surface hoar may be preserved.>Avoid convexities or areas with a thin or variable snowpack.>
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 23rd, 2014 2:00PM
