Avalanche Forecast
Issued: Dec 9th, 2011 8:56AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Deep Persistent Slabs.
jlammers,
Avalanche Canada
Summary
Confidence
Good - -1
Weather Forecast
A weak system is expected to enter the south coast on saturday bringing trace amounts of snow. A ridge is anticipated for sunday and monday delivering mostly clear skies.Light westerly winds and freezing levels at or around valley bottom are expected for the forecast period.
Avalanche Summary
There have been no recent avalanches reported.
Snowpack Summary
Mixed forms (rounding facets/rounding depth hoar) with an associated crust are prevalent in thin snowpack areas, and have been especially problematic where it is overlying summer firn. Above that, and down 1-2m, are two more crusts combined with more mixed forms and surface hoar. The overlying snow has recently settled and stiffened and the weak interfaces have also started to strengthen. The snow surface is wind hammered in wind-exposed areas, crusty on sun-exposed slopes, and faceted powder with large surface hoar on shady sheltered slopes. A thick rain crust is down 20-40cm and extends up to treeline elevations.
Problems
Deep Persistent Slabs
The likelihood of triggering a large avalanche is low, but it still makes sense to keep the deep weaknesses on your radar. The greatest concern is on steep, unsupported slopes with variable snowpack depths above 1900m.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 10th, 2011 8:00AM
