Avalanche Forecast
Issued: Dec 22nd, 2012 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems include
Summary
Weather Forecast
Increased SW to SE winds Sunday with continued cool temperatures and some light snow in regions South of the Trans Canada Highway. Winds will abate by Sunday night and we should see cold and clear conditions Monday.
Snowpack Summary
A field trip to Yoho found soft wind slabs (4 finger) near ridge crests 20cm thick. These were buried by 10cm of low density powder. Reports of stiffer wind slabs in wind exposed terrain. Low density powder in sheltered features. Thicker snowpack areas have mainly well settled midpack. The Nov.6 crust is mainly now a facet layer in thinner areas.
Avalanche Summary
No avalanches observed or reported today.
Confidence
Problems
Wind Slabs
Wind slabs 20-50cm thick in wind exposed areas from recent SW winds. These seem to be isolated to lees of terrain features and ridge crests. Reports are finding these wind slabs to be sitting on a thin layer of facets formed in early Dec.
- Be cautious as you transition into wind affected terrain.
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 23rd, 2012 4:00PM