Avalanche Forecast
Issued: Mar 6th, 2014 8:30AM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Confidence
Fair
Weather Forecast
Synopsis: A ridge of high pressure over the coast should mean drier conditions Friday before the next front system slides down the BC coast on Saturday extending into southeastern BC by late Sunday. Tonight and Friday: Isolated flurries or showers possible / Light W winds / Freezing levels 2000m Saturday:Â Isolated flurries or showers possible / Moderate SW winds / Freezing levels 2000m Sunday: Wet snow or rain overnight / Moderate to strong SW winds / Freezing levels 2100m
Avalanche Summary
The storm slab remains reactive, producing natural, accidental and controlled avalanches up to size 2.5 on all aspects and at a variety of elevations. Avalanche activity was greatest in areas where the recent precipitation fell as rain.Avalanche activity on the mid pack's persistent weak layer has decreased recently which indicating that it is has become harder to trigger. However, the few avalanches that have released on this layer have been large and destructive. Some of these have been triggered remotely.
Snowpack Summary
Up to 55cm of new storm snow sits on top of a variety of old surfaces. A layer of facets can be found on north aspects with a sun crust on many shout facing slopes. In sheltered and shaded features the storm buried surface hoar. Warm temperatures are causing the new snow to settle into a widespread soft slab. Sustained SW winds have have formed winds labs in lee features. Below 1800m rain may have saturated the upper snowpack.The midpack is broken by a widespread persistent weak layer buried mid February and now found down 90 to 120cm. The form of this week layer varies from surface hoar to a sun crust and/or facets but it can be found at all elevations, on all aspects and is still a concern.
Problems
Storm Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Mar 7th, 2014 2:00PM