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Avalanche Forecast

Archived

Dec 16th, 2014–Dec 17th, 2014

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Glacier.

Weather Forecast

High pressure ridge still holding over the Province.  We can expect increasing cloudiness today without any precipitation. Temperatures will warm up slightly and the winds are still forecast to be light. Light flurries are expected starting tomorrow into Friday.  It will be some time before we can expect any significant amount of snow.

Snowpack Summary

Rain crust to 2100m. Above 2100m the upper snowpack is settling snow that is facetting with the cold temperatures. Surface hoar growing at this time to 6mm or more. Well settled mid-pack with 30cm crust/facet basal weakness (Nov 9) observed in certain locations.

Avalanche Summary

No new avalanches were observed yesterday.

Confidence

The weather pattern is stable

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.