Avalanche Forecast
Regions: Kootenay Boundary.
Confidence
Fair - Freezing levels are uncertain
Weather Forecast
Tuesday: Expect an unsettled day, with flurries and moderate southerly winds. Accumulations could reach 10cm and freezing levels could rise to 1600m. Wednesday / Thursday: A series of fast moving systems will bring short duration snowshowers under continued moderate south-southwesterly winds. Freezing levels could climb to 1600m each afternoon. 15cm are possible each day.
Avalanche Summary
We have reports of loose, moist avalanches being triggered by solar radiation on sunny slopes on the weekend. A fatal avalanche incident occurred in this region on Wednesday. We will post more details when they become available.
Snowpack Summary
The recent warm, clear weather has left us with an aggressive melt freeze crust on solar aspects well into the alpine while shady, dead north slopes have grown some small surface hoar and remain powdery. In some areas up to 15cm of new snow now overlies these surfaces. New windslabs are forming at ridgecrest under the increased winds. Large cornices loom in the alpine. In recent snowpack tests, the early February surface hoar remains well preserved down 100-180cm and continues to yield sudden results. Although unlikely, triggering this layer would yield a very large, destructive avalanche.
Avalanche Problems
Cornices
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Possible - Likely
Expected Size: 2 - 6
Wind Slabs
Aspects: North, North East, East.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 3
Deep Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Possible
Expected Size: 3 - 8