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Avalanche Forecast

Archived

Dec 13th, 2022–Dec 14th, 2022

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
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 areas of the Yukon Region is shallow, there is now enough snow in wind deposited terrain features to create avalanches. Steep alpine bowls and cross-loaded treeline gullies are two places you could find trouble.

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

The snowpack for areas including the Wheaton Valley, Powder Valley, and Paddy Peak continue to be shallow and wind affected. At tree line, there is approximately 30cm of snow on the ground and at higher elevations the snow has been scoured to ground in exposed areas and deposited up to 100cm deep in others. It is in these more deeply deposited areas that avalanches are now possible.

Weather Summary

Tuesday night

Cloudy. 2-4cm of new snow. Winds from the southwest 20km/h gusting to 40km/h. Temperature at -5˚C

Wednesday

Cloudy. 2-4cm of new snow. Winds from the southwest at 40km/h gusting to 60km/h. Temperatures holding at -4˚C.

Thursday

Cloudy. 5-10cm of new snow as the warm front smashes into the incoming Arctic air. Winds from the southwest at 40km/h. Temperatures holding around -5˚C. 

Friday

Get ready for the deep freeze. Flurries will end in the morning and Arctic air will move in bringing clearing skies. Winds will shift to the north at 20km/h. Temperatures will plunge to -20˚C or colder. 

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Use ridges or ribs to avoid areas of wind loaded snow.

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.