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Avalanche Forecast

Archived

Feb 12th, 2012–Feb 13th, 2012

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Kananaskis.

No new snow forecast until Monday night. Unfortunately, this new snowfall amount is not to significant but it will begin to bury the surface hoar and crusts throughout the region.

Confidence

Good - -1

Weather Forecast

Overcast conditions forecast for Monday. May be the odd sunny break but overall be prepared for a grey sky. On monday night we may see the first bit of snow we have seen in a long time but unfortunately, snowfall amounts are not forecast to be significant.

Avalanche Summary

No new Avalanche Activity

Snowpack Summary

Little Change. Surface hoar and melt freeze crusts are waiting for a load to bury them and then they will become a bigger concern. Thin shallow snowpack areas where is may be possible to trigger a collapse in the basal facets are still on our radar.

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.