Avalanche Forecast

Archived

Nov 6th, 2020–Nov 7th, 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.

20-30cm recent snow with new and buried windslabs are being encountered in alpine terrain. Still very early season and very thin out there. Ice climbers be thinking about loose dry avalanches affecting your route.

Confidence

Low -

Weather Forecast

Cooling temperatures with light snow is forecast overnight. New snow will not be significant (5cm) and winds are forecasted to continue to be light.

Avalanche Summary

Isolated loose dry out of steep terrain but these are not running far.

Snowpack Summary

20-25cm of snow is overlying a 5cm thick crust that is 30-35cm off the ground. Windslabs are now buried in alpine areas. At treeline and below thin snowpack with lots of hazards dominates the landscape.

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.