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Avalanche Forecast

Archived

Dec 13th, 2013–Dec 14th, 2013

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

Regions

Kananaskis.

Up to 10cm of new snow is forecast to fall over the weekend along with strong SW winds. 

Confidence

Good - Timing, track, or intensity of incoming weather system is uncertain

Weather Forecast

Dribs and drabs of new snow over the next 24hrs but not enough to really change the current avalanche danger.  Winds are forecast to become strong out of the SW as the chinook approaches

Avalanche Summary

No new avalanche activty.

Snowpack Summary

5-10cm recent HST overlying a variety of snow surfaces from hardslabs, facets and ground.  Snowpack is weak and shallow in most areas.  The 1027 melt freeze crust is found but it is very spotty in many areas. 

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.