Avalanche Forecast

Archived

Apr 6th, 2026–Apr 7th, 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.

Treeline

Natural avalanches unlikely.

Below Treeline

Natural avalanches unlikely.

Regions

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

Possible new snow is forecast by Tuesday morning which will freshen things up. A temperature crust exists on all aspects up to 2300m and up to mountain top on solar aspects. Take the time to evaluate the bond with the new snow arriving.

Confidence

Avalanche Summary

Several loose wer avalanches up to size 1.5 were observed, likely solar triggered.

Snowpack Summary

As of Tuesday afternoon, there was a crust up to 2350m on non-solar aspects. Moist snow went up to mountain top on solar aspects. This will likely freeze to a crust before the 5-10cm of snow arrives and could become an easy sliding layer. Take the time to evaluate this interface before commiting to the terrain.

The March 24th crust interface has significant faceting above the crust. This layer is buried 40cm at TL and produced variable test results from moderate to hard.

Weather Summary

5-10cm of snow is ecpected to fall sometime Tuesday morning. The temperature in the alpine is forecast to stay cool around -7c. Winds will be in the 40-70km/hr range from the SW.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

Closely monitor how the new snow is bonding to the crust.
Be alert to conditions that change with elevation and sun exposure.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.