Avalanche Forecast
Regions:
A problem related to a persistent slab problem is to be considered if you go into forest corridors with ice falls.
Confidence
Moderate
Avalanche Summary
A size 1 persistent slab avalanche was triggered Thursday in a forest corridor at the base of an icefall. To see the report.
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Snowpack Summary
Around 25 cm of powdery snow lies on the surface in non-skied areas except on slopes exposed to west winds. Lower down, harder layers cover flat-faced crystals just above the January 18 icy crust. This brittle interface can be unstable, especially in the upper part of the couloirs with ice cascades.
Snow depths range from 70 to 120 cm in general.
Weather Summary
Friday evening and night: Blowing snow. 5 cm of snow. Wind northeast 20 to 35 km/h. Low -9 C.
Saturday: Cloudy. 2 cm of snow in the morning. Clearing in the afternoon. Wind northwest 25 to 35 km/h. High -11 C.
Sunday: A few flurries (1 cm). Wind west 40 to 70 km/h. High -5 C.
Avalanche Problems
Persistent Slabs
This problem appears to be active only at the base of icefalls present above forest corridors.
Aspects: North, North East, East, South East.
Elevations: Below Treeline.
Likelihood: Possible - Likely
Expected Size: 1 - 1.5
Wind Slabs
Loading by the storm in progress
Aspects: North, North West.
Elevations: Below Treeline.
Likelihood: Possible
Expected Size: 1 - 1.5