Avalanche Forecast
Issued: Dec 23rd, 2021 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
TRettie,
Avalanche Canada
Avoid wind loaded features, especially in the south of the region where more recent snowfall will mean an increased sensitivity to triggering.
Summary
Confidence
Moderate - Uncertainty is due to field data and reports showing a wide variation in conditions throughout the region.
Weather Forecast
Thursday night: some light flurries with light winds. Low of -24 at 1300m.
Friday: some light flurries possible with moderate northeast winds. Temperatures steady around -24 at 1300m.
Saturday: some light flurries with moderate northeast winds and temperatures steady around -27 at 1300m.
Sunday: some light flurries possible with moderate to strong northeast winds. Temperatures steady around -28.
Avalanche Summary
On Thursday our field team observed some natural avalanche activity up to size 2 in steep or extreme terrain in the treeline while in the southern part of the forecast region.
Snowpack Summary
Wind has varied in direction throughout the region over the last few days. Wind slab could be found on all aspects. Sensitivity to triggering will be greatest in the southern part of the region where snowfall amounts were greatest.
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A new surface hoar layer up to size 4 has just been buried.
Snowpack depth at treeline typically ranges from 100-250 cm, with the shallower value mainly on the eastern side of the range and the deepest snowpack around Renshaw.
Terrain and Travel
- Recent wind has varied in direction so watch for wind slabs on all aspects.
- Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
- Avoid freshly wind loaded terrain features.
Problems
Wind Slabs
Another 30cm of low density snow fell in the Renshaw area on Wednesday, wind slabs will be most reactive in this area. Wind direction has varied throughout the region over the past few days so wind slab could be found on all aspects and elevations.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 24th, 2021 4:00PM
