Avalanche Forecast
Although avalanche activity on the persistent slab has decreased in this area, it is not gone.
Use caution in steep, north-facing terrain and areas with a low snowpack.
Confidence
Moderate
Avalanche Summary
Persistent slabs were reactive on the February weak layer early this week, with naturals up to size 3. Activity tapered dramatically by Tuesday.
A skier triggered a small (10 cm thick) wind slab that formed over our latest surface hoar layer on Thursday. Along with a renewed possibility of large persistent slab avalanche activity, it's a glimpse of what we should expect as more new snow accumulates.
Weather Summary
Saturday Night
Cloudy with 0 to 5 cm of snow. 20 to 50 km/h south ridgetop wind. Treeline temperature -5 °C. Freezing level 900 m.
Sunday
Cloudy with 1 to 4 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 900 m.
Monday
Cloudy with increasing flurries bringing 5 - 15 cm of new snow, including overnight amounts. 40 - 80 km/h south ridgetop wind, increasing. Treeline temperature -2 °C. Freezing level 800 m.
Tuesday
A mix of sun and cloud with isolated flurries. 30 to 40 km/h southwest ridgetop wind. Treeline temperatures -2 °C. Freezing level 900 m.
More details can be found in the Mountain Weather Forecast.
Terrain and Travel Advice
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
Avalanche Problems
Persistent Slabs
Buried persistent weak layers have produced large natural and human triggered avalanches recently. Additional snow load may increase sensitivity to triggering.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1.5 - 3
Wind Slabs
Aspects: North, North East, East, West, North West.
Elevations: Alpine, Treeline.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2