Avalanche Forecast
Issued: Jan 1st, 2015 8:09AM
The alpine rating is Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includehttp://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://www.facebook.com/ParksMountainSafety/posts/768278099888848The Special Avalanche Warning has been extended. The potential for human triggered avalanches on the December 17th surface hoar layer continues. Conservative route selection is advised.
Summary
Weather Forecast
Increasing cloud today with light snow and warming temperatures. Winds will be moderate S'ly shifting to moderate SW'ly through today and Friday with expected snow accumulations in the 10cm range by Friday evening.
Snowpack Summary
Cold temperatures continue to facet the surface layers of the snowpack. Winds have shifted from moderate N'ly to moderate S'ly resulting in widespread windslabs. The Dec 17th surface hoar layer is present down 50-70cm sitting on top of a thick rain crust below 2100m and settled midpack above. This layer is widespread and continues to be reactive.
Avalanche Summary
Skier and rider triggered avalanches were reported in the last 48hrs on the December 17th layer below Lookout Notch. A recent size two slab avalanche was observed from a distance on the Balu headwall the trigger is unknown.
Confidence
Problems
Persistent Slabs
The December 17th surface hoar layer is still reactive. Avalanches continue to be triggered even in locations previously skied. Some areas offer few clues of the instability but the potential for large avalanches continues.
Use conservative route selection, choose moderate angled and supported terrain with low consequence.Choose conservative lines and watch for clues of instability.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Jan 2nd, 2015 8:00AM