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Avalanche Forecast

Archived

Nov 18th, 2025–Nov 19th, 2025

Alpine
Natural avalanches unlikely.
Treeline
Early Season
Below Treeline
Early Season
Alpine
Natural avalanches unlikely.
Treeline
Early Season
Below Treeline
Early Season
Alpine
Natural avalanches unlikely.
Treeline
Early Season
Below Treeline
Early Season

Regions

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

The "storm" never really materialized on Tuesday. Almost no new snow in the past 24hrs.....unfortunately. Isolated pockets of wind slab at upper elevations could be triggered in steep and unsupported terrain. Early season hazards, such as shallowly buried rocks and trees, are a major concern right now.

Confidence

Low

Avalanche Summary

Nothing new observed in the last 72hrs. A skier triggered wind slab was reported in the MIN from Nov 15.

Snowpack Summary

Wind slabs are still the dominant problem in alpine areas. Ridgelines, gullies and cross-loaded features are areas to pay close attention to as you move higher in the terrain.

The snowpack at upper elevations is still very shallow and weak, with lots of early season hazards poking through. At elevations below 2100m, rain crusts from October and November are generally supportive to ski travel.

Weather Summary

Wednesday will see cloudy skies with a few light flurries through the early morning hours. Accumulations are likely to be minimal. Temperatures will range from -2C to -6C with light and variable winds.

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.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

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.