Avalanche Forecast
Issued: Jan 24th, 2013 9:42AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
pgoddard,
Avalanche Canada
Local snowfall amounts and winds will drive the avalanche danger. These will be variable across the region. The posted ratings may be a bit high for some areas.
Summary
Confidence
Poor - Timing, track, or intensity of incoming weather is uncertain for the entire period
Weather Forecast
The timing of periods of snow and wind is uncertain. Friday: Moderate SE wind. Alpine temperature near -4. 10-15 cm snow overnight Thursday, ending on Friday.Saturday: Light NW wind. Alpine temperature near -6. Light to moderate snow is possible.Sunday: Moderate SW wind. Alpine temperature near -6. Light to moderate snow is possible.
Avalanche Summary
Several size 1 soft slabs were triggered by skiers on mainly northerly aspects on Wednesday.
Snowpack Summary
New snow is landing on a medley of surfaces including hard wind slabs, thin and thick crusts and large surface hoar crystals which can be found in sheltered areas below treeline. Southerly winds have shifted new snow into soft slabs on lee slopes. A surface hoar layer buried down 40-80 cm seems to be gaining strength. Near the base of the snowpack, a crust/facet layer exists, which is now unlikely to be triggered, except perhaps by heavy triggers in unsupported, shallow, rocky terrain where more faceting has taken place.
Problems
Storm Slabs
As new snow builds up over the next few days, storm slabs and wind slabs will increase in size and likelihood.
Avoid freshly wind loaded features.>Be cautious of sluffing in steep terrain.>
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 25th, 2013 2:00PM
