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Avalanche Forecast

Archived

Nov 10th, 2012–Nov 11th, 2012

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

Regions

Jasper.

Daily bulletins will be starting soon, check back for updates on conditions.

Weather Forecast

Cold and clear through the weekend with no new precipitation expected.  Milder temps and overcast skies expected next week, with scattered light precipitation. 

Snowpack Summary

Cold temperatures and shallow snowpack is promoting faceting.

Avalanche Summary

Several loose dry avalanches to size 1.5 were observed in the past 24 hours in steep terrain, as well as isolated windslabs to size 2.5 in steep, wind loaded features near ridgetops.

Confidence

Due to the number of field observations

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.