Avalanche Forecast
Issued: Jan 27th, 2025 4:00PM
The alpine rating is Wind Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeWind slab reactivity is expected to persist due to a buried crust beneath the most recent storm snow.
Summary
Confidence
High
Avalanche Summary
Reports of avalanche activity have significantly decreased since last week's storm cycle. However, on Sunday, a natural cornice drop triggered a large wind slab on a south-facing alpine slope. The slab failed on a buried crust, highlighting that while avalanches may be becoming less likely to trigger, the potential for large avalanches still exists.
Snowpack Summary
Surface hoar growth continues. Anticipate a thin surface crust on all south-facing or sun-exposed slopes. Elsewhere expect variable wind-affected surfaces.
In the upper snowpack, a crust with facets and/or surface hoar, buried in mid-January, can be found roughly 20 to 50 cm down from the surface.
The mid and lower snowpack contains several layers that we continue to monitor but do not currently pose a significant concern.
Weather Summary
Monday Night
Partly cloudy. 40 to 60 km/h west ridgetop wind. Treeline temperature -3 °C.
Tuesday
Cloud building with 0 to 2 cm of snow. 30 to 50 km/h west ridgetop wind. Treeline temperature -5 °C.
Wednesday
Mostly cloudy with up to 5 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -5 °C.
Thursday
Cloudy with up to 10 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -6 °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.
- Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
- The more the snowpack warms up and weakens, the more conservative your terrain selection should be.
- Keep in mind a buried crust offers an excellent bed surface for avalanches.
Problems
Wind Slabs
A buried crust, with facets and/or surface hoar, is likely maintaining wind slab reactivity, despite much recent wind slab formation.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 28th, 2025 4:00PM