Avalanche Forecast

Archived

Mar 11th, 2026–Mar 12th, 2026

Alpine

Widespread avalanches certain.

Treeline

Widespread avalanches certain.

Below Treeline

Widespread avalanches certain.

Alpine

Natural and human triggered avalanches likely.

Treeline

Natural and human triggered avalanches likely.

Below Treeline

Natural and human triggered avalanches likely.

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches possible, human triggered probable.

Below Treeline

Natural avalanches possible, human triggered probable.

Regions

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

"AVOID THE BACK COUNTRY"

Update Thursday March 12 9:30am

50+cm of snow has fallen overnight with more to come. Avoid all avalanche terrain for the next 2 days.

Confidence

Avalanche Summary

Expect a large avalanche cycle for Thursday and Friday.

Snowpack Summary

50+cm opf snow has fallen ovrnight with more to come. Avalanche hazard is extreme for today.

Weather Summary

50+cm of snow has fallen overnight.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

Avoid avalanche terrain during periods of heavy snowfall.
Avoid travel in runout zones. Avalanches have the potential to run full path.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.