Avalanche Forecast

Archived

Jan 20th, 2026–Jan 21st, 2026

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely.

Regions

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

The avalanche hazard will stay in the the moderate to low range. Travel condtions are good, the skies are sunny but the ski quality is less desirable.

Confidence

Avalanche Summary

No new avalanches were observed or reported.

Snowpack Summary

Surface hoar has been growing over the past few days with the cooler nights. Otherwise not much is changing, and backcountry users can expect a thin melt freeze crust on all aspects up to 2300m, and higher and thicker on solar aspects. Wind slabs are common at treeline and above from the strong winds over this past week with some areas stripped down to rock. A buried surface hoar layer is also being found down 50cm up to 2100m that has been producing results in the hard range.

The November crust is deeply buried in the snowpack down 120-200cm. Recent field tests on this layer have produced no results. There is still some concern for triggering this layer from thin snowpack areas.

Weather Summary

The high pressure system persists bringing sunny skies and no precip. Daytime highs should reach -8C at treeline, with ridgetop winds in the moderate to strong range from the NW. No real snowfalls in the forecast.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

Avoid steep terrain, including convex rolls, or areas with a thin, rocky, or variable snowpack.
Be careful as you transition into wind-affected terrain.
Watch for areas of hard wind slab on alpine features.
Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

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.

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.