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Avalanche Forecast

Archived

Jan 29th, 2021–Jan 30th, 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 possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Glacier.

Avalanche conditions are starting to change, be alert for areas of wind deposited snow

Weather Forecast

Cloudy with light flurries possible today with temperatures steady around -9 at treeline. Wind is due to pick up to moderate from the SW tonight with snow starting to accumulate to 5cm by the end of Saturday and rising temperatures. Sunday 20cm with mod-strong S wind.

Snowpack Summary

10 cm of new snow covers a mixture of surface facets, old wind affected snow, sun crusts and surface hoar. Ski pen is up to 35cm 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 on wednesday and Avalanche Crest a few days ago show that safe travel practices are always recommended in any avalanche terrain. Windslabs have been reported developing at and above treeline. Solar and skier triggered sluffing have also been reported. Minimize exposure to cornices and glide cracks

Confidence

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.