Avalanche Forecast
Issued: Dec 10th, 2011 8:55AM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair - Intensity of incoming weather is uncertain on Tuesday
Weather Forecast
Sunday's forecast calls for mostly sunny skies and light northerly winds.On monday expect increasing cloud in the afternoon, trace amounts of precipitation and moderate westerly winds.On tuesday moderate snowfall will occur throughout the day with moderate to strong southwest winds.Freezing levels are expected to sit at valley bottom throughout the forecast period.
Avalanche Summary
No recent avalanche activity has been reported.
Snowpack Summary
5cm of snow fell in the Coquihalla a few nights ago and has buried a thick layer of surface hoar on most sheltered and shady slopes, but no new snow further north means it's still on the surface. This surface hoar may be sitting on a crust in sun and wind exposed areas making it especially touchy as soon as a sufficiently deep and cohesive slab forms. The thick rain crust from last weekend extends up to 1800m and is buried by 10-15cm of faceted snow. Snow pack depths and surface condition are highly variable in wind-exposed areas. Surface hoar buried 70 cms below the surface has been gaining strength, and just off the ground facets have been doing the same.
Problems
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 11th, 2011 8:00AM