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Avalanche Forecast

Archived

Dec 12th, 2014–Dec 13th, 2014

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

Regions

Kananaskis.

Temps are supposed to cool overnight so we expect the snowpack to tighten up.

Confidence

Good

Weather Forecast

Temps and the freezing levels are forecast to drop tomorrow but unfortunately, there is noooooooo snow in the forecast. Skiing, well....  ugh...  I wouldnt use my skis!

Avalanche Summary

Limited observations today, but loose wet avalanches are expected to have been ongoing in very steep terrain.

Snowpack Summary

Tiny bits of snow fell over the past 24hrs but generally nothing is changing.  Warm temps are continuing to settle out the snowpack and the winds from last week defiantly have made a mark on the region. There has been no freeze below 2000m for some time now and as a result the snow pack is sufferring.  Above this elevation, persistent slabs overlying the Nov 6th crust and the Nov24th crust are being observed.  There are failing in the moderate range and are most susceptible to triggerring from a thin snow pack area.

Problems

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.