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Avalanche Forecast

Archived

Jan 1st, 2026–Jan 2nd, 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, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Little Yoho, Kootenay.

The great skiing continues!

We have broken out this forecast region due to the deeper snowpack and lower likelihood of triggering the deep persistent layer for Yoho and Kootenay.

Alpine observations for our forecast are limited.

Confidence

Avalanche Summary

A few explosive triggered avalanches up to size 2 at the ski hills today, otherwise no new or reported avalanches today

Snowpack Summary

Moderate winds may develop isolated windslab lee alpine features. Surface snow has some surface hoar development, lingering suncrust on steep solar aspects and 20-30cm settled snow in sheltered areas.

There is 40-80 cm over the Dec 15 melt-freeze crust (which is present to 1800-2000 m), 80-160 cm over the November facet/crust interfaces, and, in thinner snowpack areas, facets at the base.

Treeline snow depths range from 100-200+ cm.

Weather Summary

Thurs night: Mainly cloudy. Alpine temperature: Low -7 °C. Ridge wind west: 15 km/h.

Friday: Cloudy with sunny periods and isolated flurries. Alpine temperature: High -7 °C. Ridge wind southwest: 20 km/h.

Saturday: Mainly cloudy with scattered flurries. Accumulation: 5 cm. Alpine temperature: Low -8 °C, High -3 °C. Ridge wind southwest: 20 km/h gusting to 45 km/h.

Link to the weather forecast

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Avoid thin areas like rocky outcrops where you're most likely to trigger avalanches on deep weak layers.

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.