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Avalanche Forecast

Archived

Nov 13th, 2022–Nov 16th, 2022

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

Regions

Lake Louise.

The clear weather continues. Early season conditions are present with a thin snowpack, lots of variability in snow depth, and plenty of lurking hazards to hit. Some good travel and turns can be found, but options are limited. Travel with care.

Confidence

High

Avalanche Summary

A few small thin stubborn wind slab avalanches in the alpine have been reported by local ski areas during avalanche control. Otherwise no new reports or observations of avalanches.

Snowpack Summary

Small thin stubborn wind slabs are present in the alpine. In some locations these may sit over a buried surface hoar layer. The snowpack is quickly facetting with the cool temperatures and surface hoar growth is occurring. 50-80 cm of total snow at treeline throughout the region, with up to 120 cm in loaded alpine features. Below treeline, the snowpack is generally below the threshold for avalanches.

Weather Summary

Clear weather continues as another high pressure ridge moves into the area. Winds will remain light from the SW-NW. Daytime temperatures will warm to 0°C to -5°C depending on elevation, with a possible temperature inversion in the alpine. No snow in the forecast until Wednesday.

Terrain and Travel Advice

  • Approach lee and cross-loaded slopes with caution.

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.