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Avalanche Forecast

Archived

Jan 19th, 2025–Jan 20th, 2025

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.
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.

Cold, clear & beautiful! Getting through the cold valley bottoms to a sunny aspect is a great way to enjoy the cool weather.

Confidence

High

Avalanche Summary

No road patrol or field teams today. No avalanches reported.

Snowpack Summary

Where to start? Valley bottom has 50-60cm of weak, loose facets with a thinly buried sun crust from days past. Treeline is a bit more substantial with a supportive snowpack of 80-100cm. The sun crust goes up to 2300-2400m. Windslabs start to appear at upper treeline, which may become more reactive with the chilly temperatures. The majority of our alpine snowpack blew away weeks ago, but we still have windslabs on east aspects, gullies and immediate lee areas.

Weather Summary

Monday will bring a mix of sun and cloud. Day time highs of -10 and winds out of the West, 30 km/h at ridge top. Expect an alpine temperature inversion.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.

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.