Avalanche Forecast
Issued: Feb 17th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
Avalanche Canada,
Avalanche Canada
Avoid areas where the snowpack transitions from thick to thin and triggering a weak layer is more likely.
Summary
Confidence
Moderate
Avalanche Summary
Sunday: Skiers were involved in an avalanche in the East Boulder Creek area. Check out This MIN report for more details.
Saturday: One large (size 2) wind slab was reported on a northwest aspect in the alpine.
Operators in the area are still concerned about a weak layer of facets over a crust from early December that has produced large avalanches.
Snowpack Summary
Previous strong winds have scoured terrain at treeline and above on all aspects. Ongoing cold temperatures have softened the surface of wind affected terrain in many areas.
In sheltered terrain 30 to 60 cm of faceted snow overlies a crust and layer of surface hoar from late January.
Another layer of surface hoar was buried near the middle of January and can be found 50 to 100 cm deep.
A weak layer of facets and a crust from early December varies in depth from 100 to 300 cm. This layer remains a concern in this region.
Weather Summary
Monday Night
Partly cloudy. 10 km/h east ridgetop wind. Treeline temperature -10 °C.
Tuesday
Mix of sun and clouds. 20 to 30 km/h east ridgetop wind. Treeline temperature -9 °C.
Wednesday
Cloudy. 0-2cm of snow. 10-20km/h south ridgetop wind. Treeline temperature-10 °C.
Thursday
Mostly cloudy with flurries. 8cm of snow. 25 to 35 km/h south ridgetop wind. Treeline temperature -10 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be mindful that deep instabilities are still present in the snowpack.
- Pay attention to isolated wind affected features in the alpine, as well as cross-loaded features at treeline.
Problems
Wind Slabs
Strong east winds have reverse loaded slopes.
In some areas this wind slab may be sitting on weak surface hoar crystals buried in mid January.
Aspects: North, South, South West, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
A weak layer buried 100 to 300 cm remains a concern.
Avoid shallow rocky areas where the snow transitions from thick to thin and triggering this layer is more likely.
If triggered the resulting avalanche would be very large and destructive.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 18th, 2025 4:00PM
