Avalanche Forecast
Issued: Jan 31st, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs.
Avalanche Canada,
Avalanche Canada
Fresh snow sits over unstable surfaces, creating dangerous avalanche conditions. Stick to simple, low angle terrain and avoid overhead hazard.
Summary
Confidence
High
Avalanche Summary
Observations have been limited during the storm. On Friday storm slabs were reported size 1-1.5. They were triggered naturally, by skiers, explosives and vehicles. Some were triggered remotely or sympathetically.
Storm slab size will increase as snowfall continues overnight.
Snowpack Summary
Light snowfall continues. 30 to 50 cm of new snow has accumulated since Thursday night. Near ridgetops, moderate to strong southwest wind has loaded new snow into leeward terrain features. The new snow is not expected to bond well to underlying surfaces including a hard crust, facets and/or surface hoar.
The mid and lower snowpack is well-settled and dense with no layers of concern.
Weather Summary
Friday night
Cloudy with 10 to 20 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature dropping from -3 to -10 °C. Freezing level dropping from 1000 m to valley bottom.
Saturday
Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.
Sunday
Cloudy with 5 to 10 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperatures -11 °C.
Monday
5 to 10 cm of snow overnight then a mix of sun and cloud. 20 km/h southeast ridgetop wind. Treeline temperatures -13 °C.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
- Don't let the desire for deep powder pull you into high consequence terrain.
- Closely monitor how the new snow is bonding to the old surface.
Problems
Storm Slabs
Fresh storm slabs will likely remain reactive throughout the weekend. They can be most easily triggered in wind-loaded terrain features and where they sit poorly bonded to a crust or weak grains.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 1st, 2025 4:00PM
