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Avalanche Forecast

Archived

Dec 1st, 2019–Dec 2nd, 2019

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

Regions

Jasper.

Decent skiing can be found on protected south and west aspects.

Weather Forecast

An upper level low over the west coast is forcing a western zonal flow across BC; means high level west winds will drag moisture across the Interior. This will lead with a desperately wanted rise in the daily average temperature and freezing levels through the region. Snowfall forecasted for the coming week. Details here: Mountain Weather Forecast.

Snowpack Summary

The shallow snowpack areas will be faceting and loosing support underfoot though much of the forecast region due to the sustained cold temps. Windslabs and wind effect in exposed areas. The fervent hunter may find up to 10-20cm of soft snow found in sheltered S and W pitches. This sits over the Nov crust and is supportive to skis on solar aspects.

Avalanche Summary

Several loose dry avalanches in the alpine from steep terrain on a variety of aspects

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

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.