Avalanche Forecast
Issued: Dec 4th, 2012 9:33AM
The alpine rating is Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Due to variable snowpack conditions
Weather Forecast
Overnight and Wednesday: Light to locally moderate snowfall overnight, easing off by Wednesday morning / Strong to extreme southwest winds / Freezing level at 1600m overnight dropping to surface by Wednesday morning Thursday: Light snowfall / Moderate west winds / Freezing level at 900mFriday: Possibility of clearing / Light southwest winds / Freezing level at surface
Avalanche Summary
Several size 1-1.5 soft slabs were ski cut in the Westcastle area on Monday. They occurred with the recent storm snow on north to northeast facing terrain between 1900 and 2200m.
Snowpack Summary
Recent storm accumulations have been highly variable throughout the region with some reports from the east side of the region indicating storm slabs up to 40cm deep. Warmer temperatures at lower elevations have created moist surfaces that will most likely form a temperature crust with dropping freezing levels. Ongoing light to locally moderate snowfall and strong to extreme winds will create pockets of windslab at treeline and above.The November crust was found to be buried down about 60 cms and was associated with a layer of facets either directly above or below. In general, snowpack data is sparse in this region and significant variations likely exist from one drainage to another. Digging down and making your own observations will be critical to safe slope selection. Any observations from the field are welcome at forecaster@avalanche.ca.
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 5th, 2012 2:00PM