Avalanche Forecast
Issued: Mar 7th, 2022 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Persistent Slabs.
Mark Herbison,
Watch for small pockets of wind slab that could have potentially formed in the alpine from the moderate Northerly winds as the cold front pushes into the region.
Good snow quality found on sheltered polar aspects.
Summary
Weather Forecast
Tuesday will be mainly sunny with periods of cloud, have an alpine high of -15 and 15-30 km/hr North East winds as a cold front pushes into our region. Cold and clear for a few days with temps gradually warming and the possibility of snow by the end of the week into the weekend.
Snowpack Summary
A surface crust exists up to ~1500m on all aspects and higher on solar aspects. Soft, dry snow snow can be found in sheltered areas on Northerly terrain features. 40cm of settling snow sits on top of the Feb 26th interface of small surface hoar in sheltered areas and a crust on steep solar aspects.
Avalanche Summary
No new avalanches reported or observed on Sunday.
A size 2.5 natural cornice failure triggered a decent sized slab above the Little Sifton Traverse exit on Saturday.
Several skier accidental avalanches in the size 1.5 range last Thursday and Friday, which likely involved the Feb 26th interface.
Confidence
Problems
Persistent Slabs
The recent snow has settled into more of a cohesive slab and buries small surface hoar in sheltered areas and sun crust on solar aspects. Though it's unlikely to trigger this layer, keep it in mind if you push into larger/committing terrain features.
- Pay attention to overhead hazards like cornices which could easily trigger persistent slabs.
- Persistent slabs may be more sensitive to human triggering on solar asp where they sit on sun crust
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Mar 8th, 2022 4:00PM
