Avalanche Forecast
Issued: Mar 2nd, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Avalanche Canada,
Avalanche Canada
Sunny aspects may soften this afternoon, providing the best riding conditions but also heightened avalanche danger. Buried weak layers remain triggerable and high consequence.
Summary
Confidence
Moderate
Avalanche Summary
Avalanche activity on Saturday was predominantly small loose wet up to size 1.5 out of steep, rocky solar aspects. In a few cases, these slides triggered larger persistent slab avalanches on slopes below.
Last week, a flurry of very large, scary persistent slab avalanche activity was reported at alpine and treeline elevations. Naturals and remotely triggered slabs size 2 to 3 showed wide propagation, with crowns 50 to 100+ cm deep.
Snowpack Summary
A widespread surface crust exists on most aspects and elevations.
60 to 80 cm of well-settled snow sits over a weak layer of facets and surface hoar buried in mid February. As of Friday, snowpack tests in the Spearhead zone indicate this layer may finally be starting to gain strength.
Another weak layer, from late January, is buried 80 to 120 cm deep. This may present as a crust on sunny slopes, sugary facets in most places, and surface hoar in sheltered spots. Large natural, remote and human-triggered avalanches were reported on this layer last week.
For more details, check out Zenith's snowpack update from Friday.
Weather Summary
Sunday night
Partly cloudy. 10 to 20 km/h northeast ridgetop wind. Treeline temperature 0°C. Freezing level 1600 m.
Monday
Sunny. 10 to 20 km/h southeast ridgetop wind. Treeline temperature 0°C. Freezing level 1600 m.
Tuesday
Mostly cloudy. 30 to 50 km/h southeast ridgetop wind. Treeline temperature -1°C. Freezing level 1500 m.
Tuesday
10 to 15 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -3°C. Freezing level 1200 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Be mindful that deep instabilities are still present and have produced recent large avalanches.
- Keep in mind that human triggering may persist as natural avalanches taper off.
- Uncertainty is best managed through conservative terrain choices.
Problems
Persistent Slabs
Buried weak layers have been reactive in the past week. Although the likelihood may be decreasing, the consequences of triggering an avalanche on these layers is high.
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 3rd, 2025 4:00PM
