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Avalanche Forecast

Archived

Mar 10th, 2026–Mar 11th, 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, human triggered possible.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Crowsnest North, Crowsnest South.

Recent wind has varied in direction, so watch for wind slabs on all aspects.

Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

Confidence

Moderate

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

Avalanche Summary

On Monday, numerous skier triggered wind slabs and dry loose avalanches up to size 1.5 were reported at treeline and above.

Snowpack Summary

Variable winds have redistributed 10 to 20 cm of recent snow and formed wind slabs on lee features at treeline and above.

The recent snow sits on a 3 to 10 cm thick crust. The thickness of the crust depends on elevation.

A persistent weak layer of surface hoar and/or crust is down 30 to 50 cm. Avalanches are unlikely on this layer in areas where a supportive crust exists below the recent snow.

In shallow snowpack areas, depth hoar (large facets) can be found near the bottom of the snowpack.

Weather Summary

Tuesday Night
Partly cloudy. 0 to 5 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -11 °C.

Wednesday
Cloudy. 0 to 3 cm of snow, then another 15 to 20 cm overnight. 60 km/h west ridgetop wind. Treeline temperature -10 °C.

Thursday
Mostly cloudy. 5 to 15 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday
Mostly cloudy. 0 to 5 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

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.