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Avalanche Forecast

Archived

Jan 28th, 2021–Jan 29th, 2021

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

Regions

Glacier.

Watch for windslabs building in lee and crossloaded features today

Weather Forecast

Cloudy with light flurries today while temperatures rise to -6. A short spell of moderate SW wind is possible this afternoon. Similar conditions tomorrow with less snow. A larger pulse of snow and wind due on Saturday night after temperatures drop again.

Snowpack Summary

A few cm of new snow covers a mixture of surface facets, old wind affected snow, sun crusts and surface hoar. Ski pen is up to 25cm in sheltered areas. The snowpack is predominantly made up of strong rounded crystals. Critical layers from earlier in the winter are dormant for now.

Avalanche Summary

Skier accidentals from the Ravens yesterday and Avalanche Crest a few days ago show that safe travel practices are always recommended in any avalanche terrain. Thin windslabs have been reported at and above treeline. Solar and skier triggered sluffing have also been reported. Minimize exposure to cornices and glide cracks

Confidence

Timing of incoming weather systems is uncertain

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.