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Avalanche Forecast

Archived

Dec 1st, 2022–Dec 2nd, 2022

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Duffey, South Chilcotin, Taseko.

Watch for building wind slabs in the alpine and at treeline.

A thin snowpack is still presenting early-season hazards such as exposed rocks and trees.

Confidence

Low

Avalanche Summary

A few small loose dry avalanches have been reported in the region. These have mostly been in the alpine and treeline elevations. One size 2 natural observed on a northeast aspect in the alpine. If you head into the backcountry consider submitting a MIN report.

Snowpack Summary

At 1900 m our snowpack ranges between 30 and 90 cm. The top 15 to 25 cm is light low-density snow that is primed for wind transport. This sits on a variety of surfaces. At lower and even mid elevations, it is sitting on bare ground and at higher elevations, it can be found sitting on a variety of surfaces, melt-freeze crust, or surface hoar. Due to cold temperatures and a thin snowpack basal snow is expected to lack cohesion.

Weather Summary

Thursday Night

Clear, no cm accumulation, winds southwest 10 km/h, temperatures -10 to -15 C at 1500 m.

Friday

Cloudy with sunny periods, trace accumulation, winds southwest 15 km/h, temperatures -10 to -15 at 1500 m.

Saturday

Mostly sunny, no accumulation, winds northeast 15 km/h, temperatures -10 C at 1000 m and -5 C at 2000 m due to a temperature inversion.

Sunday

Sunny, no accumulation, winds northeast 15 to 20 km/h, temperatures -10 C at 1000 m and 0 to -5 C at 2000 m due to a temperature inversion.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been wind-affected.
  • Watch for areas of hard wind slab on alpine features.
  • Wind slabs are most reactive during their formation.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.