Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Feb 28th, 2026–Mar 1st, 2026

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.

Regions

Little Yoho, Kootenay, Lake Louise, Sunshine, Field.

Clear skies will continue, the ski quality has improved, but the avalanche hazard is still elevated.

Be aware of what is above you, especially where the wind may be present.

Mt Bosworth, Mt Field and Mt. Stephen will be closed all day Sunday for avalanche control. Click the blue banner above for closure area maps.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

A widespread avalanche cycle has occurred all aspects and elevations over the past 24-48 hours up to size 3. Avalanche control on Mt. Wymper, Simpson and Mt. Wardle produced results up to size 3 wind slab and on the Jan 24th persistent layer.

Snowpack Summary

Up to 40 cm of new snow and sustained strong to extreme SW/W winds have formed deep, reactive windslabs. These overlie the Jan 24 layer (surface hoar/crust/facet) down 30-50+ cm at treeline. This layer has been very touchy in Kootenay and Yoho, and with this new load, we believe it may now wake up in areas south of Lake Louise. We expect touchy conditions for the foreseeable future.

Weather Summary

Tonight: Clear. Alpine temperature: Low -9 °C. Mostly light ridge wind occasionally gusting to 40 km/h.

Sunday: Sunny. Alpine temperature: High -3 °C. Mostly light ridge wind occasionally gusting to 45 km/h. Freezing level: 1900 meters.

Monday: A mix of sun and cloud. Alpine temperature: Low -4 °C, High -1 °C. Mostly light ridge wind occasionally gusting to 55 km/h. Freezing level: 2100 meters.

Terrain and Travel Advice

  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.
  • Avoid exposure to overhead avalanche terrain; avalanches may run surprisingly far.
  • Pay attention to the wind; once it starts to blow, sensitive wind slabs are likely to form.

Problems

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.

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.