Avalanche Forecast
Issued: Feb 19th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs and Loose Dry.
Avalanche Canada,
Avalanche Canada
Watch for persistent slabs to become more reactive as a gradual warming trend continues over the next few days.
Summary
Confidence
Moderate
Avalanche Summary
There have been numerous, small to large (size 1 to 2) dry and wet loose avalanches, both natural- and rider-triggered running in steep terrain over the past few days.
There were two reports of size 1.5 skier and snowmobile triggered persistent slab avalanches on a southeast and northwest aspects in the alpine. See details in this MIN here as well as this MIN here.
Snowpack Summary
20 to 30 cm of snow has fallen since last Friday. This storm snow is sitting on 30 to 60 cm of faceted old snow. Below this is a persistent weak layer consisting of facets and surface hoar buried in late January.
The mid and lower snowpack is generally well settled, with no other layers of concern.
Weather Summary
Wednesday Night
Cloudy with 1 to 3 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.
Thursday
Mainly cloudy. 20 to 40 km/h west ridgetop wind. Treeline temperature -5 °C.
Friday
Mostly cloudy with isolated flurries. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.
Saturday
Mostly cloudy with 2-5 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -1 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
- Make observations and continually assess conditions as you travel.
- Loose avalanches may step down to deeper layers, resulting in larger avalanches.
Problems
Persistent Slabs
The late January weak layer is a problem where the snow above it is stiff and slabby. Read more about it in our Blog.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Loose Dry
Light, dry snow may gather mass as it moves downhill. Avoid being underneath steep features and above one another.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 20th, 2025 4:00PM
