Avalanche.report

Saturday 26.12.2020

Published25 12 2020, 17:00


Danger level

treeline
Avalanche Problem
Wind-drifted snow
Treeline


Wind slabs are to be evaluated with care and prudence.

Above the tree line the wind slabs have increased in size on Christmas Day. The fresh and somewhat older wind slabs can be released even by a single winter sport participant in all aspects, especially at their margins. Mostly avalanches are rather small. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Caution is to be exercised in particular adjacent to ridgelines and in gullies and bowls. In regions neighbouring those that are subject to danger level 3 (considerable) the avalanche prone locations are more prevalent and the danger is greater.

Snowpack

dp.6: cold, loose snow and wind

As a consequence of new snow and a strong wind from variable directions, brittle wind slabs formed above the tree line. In some places wind slabs are lying on the soft surface of an old snowpack, especially on shady slopes.
In its middle, the snowpack is well consolidated. Towards its base, the snowpack is faceted, especially on shady slopes above the tree line, as well as in all aspects in high Alpine regions. As a consequence of falling temperatures a crust formed on the surface, in particular below approximately 1800 m.

Tendency

The avalanche danger will persist.