Avalanche Forecast

Issued: Dec 1st, 2023 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs.

Avalanche Canada llarson, Avalanche Canada

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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.

Summary

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.

Problems

Wind Slabs

An icon showing Wind Slabs

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.

Aspects: North, North East, East, South East, North West.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Dec 2nd, 2023 4:00PM

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