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Avalanche Forecast

Archived

Dec 4th, 2023–Dec 5th, 2023

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

Regions

East Kakwa, Tumbler.

Much of our area will be getting new snow and wind.

Seek out sheltered areas but watch out for obstacles just below the surface.

Confidence

Moderate

Avalanche Summary

No new or recent avalanches have been reported in our region.

Please take the time to submit a MIN report if you venture into the backcountry.

Snowpack Summary

New snow will be transformed into wind slabs at higher elevations. In sheltered areas. In sheltered areas, it will rest on a weak and shallow snowpack.

The height of snow at treeline ranges from 25 to 50 cm. As you descend to lower elevations, snow depths decrease significantly.

Weather Summary

Monday Night

Increasing clouds, 2 to 5 cm accumulation, alpine wind southwest 35 to 45 km/h, treeline temperatures reaching 0 °C with a temperature inversion in the alpine.

Tuesday

A mix of sun and cloud, 5 cm accumulation with 10 cm in the south ending by mid-day, alpine winds southwest 25 to 35 km/h, freezing level at treeline.

Wednesday

Mostly clear, no accumulation, alpine winds southwest, alpine wind  20 to 40 km/h, freezing level to 1100 m and falling by evening.

Thursday

Clear, no accumulation, alpine winds southwest 10 to 20 km/h, treeline temperatures around -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Expect shallow snow cover that barely covers ground roughness.
  • 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

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.