Avalanche Forecast

Archived

Nov 7th, 2020–Nov 8th, 2020

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

Below Threshold.

Treeline

Below Threshold.

Below Treeline

Below Threshold.

Regions

Kananaskis.

The snowpack is still very shallow, but Alpine areas have enough snow to avalanche. Wind slabs are a concern in steep and unsupported terrain. Ice climbers should also be aware of small loose dry avalanches from overhead terrain.

Confidence

Low -

Weather Forecast

Light snow Saturday night and through the day Sunday with accumulations between 5 and 10cm possible. Temps should be in the -10 to -15 range with light to moderate northerly winds.

Avalanche Summary

Visibility was limited today, but evidence of a isolated loose dry activity up to size 1.5 from steep Alpine terrain.

Snowpack Summary

Up to 25cm of snow is overlying a 5cm thick crust that is 30-35cm off the ground. Wind slabs are now buried in alpine areas, with thin fresh slabs building in top. At treeline and below the snowpack remains very thin..

Terrain and Travel

Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Problems

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.