Avalanche Forecast
Issued: Feb 6th, 2020 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
mkoppang,
Avalanche Canada
Been a while since we saw a slide on the basal layers but the consequences of a large slide are always in our minds. The region needs 10-15cm for a re-set which may come this weekend. Watch from hard windslabs in alpine terrain.
Summary
Confidence
Weather Forecast
Not much for new snow in the forecast for the next few days. Temps will be around -8C with winds out of the SW. Expect a sky consisting of a mix of sun and cloud.
Avalanche Summary
No new avalanches observed today.
Snowpack Summary
Widespread wind slabs of varying thicknesses in the Alpine and open areas at Treeline. 5 to 10cm of recent snow overlies a thick and supportive rain crust at lower elevations. This crust disappears at 2050m. Look to sheltered areas between 2300 and 2000m for soft snow and good skiing. The wind slabs in the alpine still need some time to heal.
Terrain and Travel
- Avoid lee and cross loaded slopes in the alpine.
- Be careful as you transition into wind affected terrain.
- Be aware of the potential for large avalanches due to the presence of a deep persistent slab.
Problems
Wind Slabs
Wind slabs of varying density are everywhere at upper elevations and range in thickness from 10 to 50cm. Human triggering is most likely in steep, convex and/or unsupported terrain.
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
This is the bottom 40cm of the snow pack (November crust/facet combo). There is potential for a surface wind slab to step down to this weak layer creating a very large slide.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Feb 7th, 2020 4:00PM
