Avalanche Forecast
Issued: Mar 10th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Persistent Slabs.
Avalanche Canada,
Avalanche Canada
Human-triggered avalanches are likely.
Careful snowpack evaluation, cautious route-finding, and conservative decision-making are essential.
Summary
Confidence
Moderate
Avalanche Summary
On Sunday, numerous natural and human-triggered storm slab avalanches were reported up to size 3. Storm slab avalanches were reported at all elevations.
Storm slabs continue to be touchy on Tuesday. Dry loose sluffing will be likely from steep terrain features.
Snowpack Summary
Up to 110 cm of storm snow blankets the region. Strong southwest winds have redistributed storm snow into deep pockets on lee slopes at the ridgeline. Storm snow covers a crust on all aspects except on high north facing terrain, where new snow buries 10 to 15 cm of snow overlying a crust from earlier in March.
A layer of facets and surface hoar from mid February can be found down 100 to 140 cm.
Another layer of facets and surface hoar from late January can be found down 150 to 200 cm.
The lower snowpack contains several crusts that are not concerning.
Weather Summary
Monday Night
Cloudy with flurries up to 5 cm. 25 to 45 km/h southwest ridgetop wind. Treeline temperature -7 °C. Freezing level valley bottom.
Tuesday
Cloudy with 5 to 10 cm of snow. 20 to 45 km/h south ridgetop wind. Treeline temperature -3°C. Freezing level 1200 m.
Wednesday
Cloudy with 8 to 15 cm of snow. 20 gusting to 65 km/h south ridgetop wind. Treeline temperature -5 °C. Freezing level around 1100 m.
Thursday
Mix of sun and cloud with light flurries. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level valley bottom.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Continue to make conservative terrain choices while the storm snow settles and stabilizes.
- Keep your guard up at lower elevations. Storms slabs have been reactive at all elevations.
- Avoid freshly wind-loaded terrain features.
- Storm slabs in motion may step down to deeply buried weak layers and result in very large avalanches.
Problems
Storm Slabs
Up to 110 cm of storm snow and strong winds have built reactive storm slabs at all elevations. Back off if you encounter signs of instability like whumpfing, shooting cracks or recent avalanches.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Persistent Slabs
Weak layers remain a concern in high, north-facing terrain where snowpack depth is variable. These layers are still adjusting to the new snow load and may be reactive to human-triggering.
Aspects: North, North East, East, West, North West.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Mar 11th, 2025 4:00PM
