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Avalanche Forecast

Archived

Dec 27th, 2022–Dec 28th, 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.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Keep an eye on the wind and look for blowing snow at ridge crests. there is lots of unconsolidated snow available for transport. Great riding to be found in non-wind effected terrain!

Confidence

Low

Avalanche Summary

No new avalanches have been reported recently but observations have been limited.

Continue to support your backcountry community and please consider submitting a MIN report.

Snowpack Summary

Up to 15cm of low density new snow exists in non-wind effected terrain. This new snow has likely formed new wind slabs in high alpine terrain and burried a variety of surfaces including old wind slab, facets and even bare ground.

In the mid pack it could be possible to find a thin layer of facets between old wind slabs. This layer recently produced sudden results in snowpack tests.

The height of the snowpack is variable. In areas lee of the prevailing wind, depths of up to 170cm can be found. At the lower elevation treeline terrain, snow depths decrease and are estimated at 60-90 cm.

Weather Summary

Tuesday Night

Light flurries bringing trace amounts of new snow. Light southwest winds and a low of -9 at 1500m.

Wednesday

Mainly cloudy with light flurries bringing trace amounts of new snow. Light to moderate southwest winds and a high of -8 at 1500m.

Thursday

Cloudy with light flurries bringing trace amounts of new snow. Light southeast winds and a high of -14 at 1500m.

Friday

Cloudy with flurries bringing trace amounts of new snow. Light northeast winds and a high of -15 at 1500m.

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.
  • Pay attention to the wind, once it starts to blow fresh sensitive wind slabs are likely to form.
  • Closely monitor how the new snow is bonding to the old 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.