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Avalanche Forecast

Archived

Nov 15th, 2025–Nov 17th, 2025

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

Regions

Kananaskis, Bow Valley, Highwood Pass, North 40, Spray - KLakes.

Most of the recent storm fell as rain below 2300 m, but above this elevation small pockets of wind slab are forming in gullies and along ridge crests. Snow coverage at treeline and below remains thin and generally below threshold.

Confidence

Low

Avalanche Summary

A few sz 1-2 avalanches from alpine terrain were observed on Saturday. These avalanches were only 30-40cm deep initiating in the Alpine but them running far given on top of the crust.

Snowpack Summary

The recent storm mainly fell as rain below 2300m with snow above. The height of this new crust is still a bit of an unknown so as field observations get more frequent we will have a better handle on this. Below this there is a deeper crust layer close to the ground from October.

Windslabs are still the dominant problem in alpine areas. Ridgelines, gullies and crossloaded features are areas to pay close attention to as you move higher in the terrain.

Weather Summary

Above seasonal temperatures will continue on Sunday with moderate westerly winds and no new precipitation.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Ice climbers should be equipped with avalanche safety gear.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.