Avalanche Forecast
Issued: Dec 21st, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
CB,
Avalanche Canada
Start your trip early and bring lots of layers, it's going to be a cold, short day.
Even small incidences can have high consequences.
Summary
Confidence
Moderate
Avalanche Summary
Reports of settlements and whumphing continue to be reported in previously untracked terrain.
Isolated natural sluffs and small avalanches up to size 1 have been observed along the highway corridor in the past few days.
Snowpack Summary
Up to 10cm now buries the Dec 16 surface hoar (up to 10mm at tree line and below) and a crust on solar aspects.
The snowpack is thin (~110cm at 2000m) and generally facetted. The Dec 5 and Nov 17 surface hoar layers are down ~40cm and ~70cm respectively and still producing easy to moderate snowpack tests in some locations.
Atypical early season hazards are present throughout the park.
Weather Summary
Thursday remains cold and dry, warming begins Friday along with snow in the forecast.
Thurs: Sun and cloud, Nil precip, Alp High: -20*C, Ridge wind: SE-15 km/h
Fri: Flurries, 9 cm, Alp High: -11*C, Ridge wind: S-20 km/h
Sat: Flurries, 6 cm, Alp High: -5*C, Ridge wind: SW-20-35 km/h
Terrain and Travel Advice
- Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.
- Exercise caution on steep, unsupported slopes.
- Uncertainty is best managed through conservative terrain choices at this time.
Problems
Persistent Slabs
The Nov 17 and Dec 5 surface hoar are down ~75cm and ~35cm respectively, and still a concern for rider triggering in isolated areas that haven't been skied. These layers are still reactive in snowpack tests in isolated locations.
Aspects: All aspects.
Elevations: Treeline.
Likelihood
Expected Size
Valid until: Dec 22nd, 2022 4:00PM
