Avalanche Forecast
Issued: Jan 15th, 2025 4:00PM
The alpine rating is Storm Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeNew snow and strong winds are driving the avalanche danger. Stick to conservative terrain and assess snowfall amounts and wind transport in your local riding area.
Summary
Confidence
Moderate
Avalanche Summary
No new reports.
Natural avalanche activity is likely with incoming snow and wind.
Snowpack Summary
Up to 25 cm of forecast snow is expected by Thursday afternoon. Strong southwest winds will likely build thicker slabs on lee slopes. The new snow may have a poor bond to south-facing slopes and areas below 1200â1300 m where it sits on a crust.
A persistent weak layer composed of facets overlying a crust is buried 40 to 90 cm deep and may be reactive with the new load from snow and wind.
Weather Summary
Wednesday Night
Snow 10 to 20 cm. 50 to 60 km/h southwest ridgetop wind. Treeline temperature -8 °C. The freezing level drops to the valley bottom.
Thursday
Cloudy with 5 to 10 cm. 30 gusting to 70 km/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level 900 m.
Friday
A mix of sun and cloud. 10 to 20 km/h north ridgetop wind. Treeline temperature -10 °C. Freezing valley bottom.
Saturday
Cloud with sunny periods. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -10 °C. Freezing level valley bottom.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for fresh storm slabs building throughout the day.
- Choose low-angled, sheltered terrain where new snow hasn't been wind-affected.
- Be aware of the potential for large avalanches due to buried weak layers.
- Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
Problems
Storm Slabs
Up to 25 cm is forecast on Thursday. Fresh storm slabs may be reactive. Strong ridgetop winds will build deeper deposits of snow on leeward slopes.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
A widespread crust with weak facets overtop is buried 40-80 cm deep. While this layer exists on all aspects, it's most likely to be triggered by a heavy load on wind-loaded slopes.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Jan 16th, 2025 4:00PM