Avalanche forecast

Purcells

Dec 2 – 3, 2023Avalanche Canada
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Archived · expired 3 years ago

Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low

Highlights

A little bit of new snow may cover some of the early-season obstacles. Keep your guard up and continue to watch for shallow snowpack areas.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–1.5

    The base of our thin snowpack is weak and faceted. Steep pockets of deeper, wind-loaded snow are the most likely to break away from this weak base under the weight of a person or machine.

Confidence

Moderate

Snowpack Summary

New snow will bury various surfaces; surface hoar in sheltered terrain, heavily wind-affected in open alpine, melt-freeze crusts on steep solar aspects, and faceted soft snow.

A crust with facets or depth hoar exists at or near the ground. The snowpack is shallower than average for this time of year, with depths at treeline ranging from 20 -50 cm and tapers rapidly below.

Expect early season conditions.

Weather Summary

Friday Night

Cloudy with isolated flurries. Minimal accumulations. Southwest wind 20 to 25 km/h. Treeline temperature -9 °C.

Saturday

Cloudy with isolated flurries continuing from overnight. 3 to 5 cm accumulations. Southwest wind 30 to 40 km/h. Treeline temperature -8 °C.

Sunday

Cloudy with flurries 3 to 5 cm accumulation. Southwest wind 25 to 40 km/h, increasing, strongest in the alpine. Treeline temperatures -8 °C.

Monday

A mix of sun and clouds, scattered flurries, trace accumulations. Westerly winds 20 to 40 km/h. Treeline temperatures -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for areas of hard wind slab on alpine features.
  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Regions covered