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Avalanche Forecast

Archived

Dec 15th, 2022–Dec 16th, 2022

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton.

Although the snowpack in the northern area of the Yukon Region is shallow, there is now enough snow in wind deposited terrain features to create avalanches.

Extreme cold conditions will sweep across the region this starting Friday.

Confidence

Moderate

Avalanche Summary

No avalanches have been reported from these areas. This is likely due to the shallow snowpack limiting riding opportunities for the time being. If you find yourself in the Wheaton Valley, Powder Valley, or Paddy Peak areas, please submit a report to the Mountain Information Network.

Snowpack Summary

Overall snowpack is shallow and highly wind-affected. At treeline, there is about 30cm of snow on the ground, while at higher elevations, the snow has been scoured to the ground in exposed areas and deposited up to 100cm deep in lee features. It is in these deeper, deposited areas that avalanches are now possible.

Weather Summary

Thursday night

Cloudy with flurries. Moderate to strong southwest winds and temperatures cooling 0 to -15 C in the alpine.

Friday

Some flurries in the morning as cold air sweeps across the region. Alpine winds will shift to northwest in the moderate to strong range. Temperatures drop to -20 C with a significant wind chill.

Saturday and Sunday

Mainly clear skies. Alpine temperatures in the -25 to -30 C range, with moderate northeast winds. Wind chill values near -45 C over the weekend.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use ridges or ribs to avoid areas of wind loaded snow.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.

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.