Avalanche.report

Thursday 31.12.2020

Published30 12 2020, 17:00


Danger level

treeline
Avalanche Problem
Wind-drifted snow
Treeline
Wind-drifted snow
Treeline


Fresh and older wind slabs require caution.

On wind-loaded slopes a critical avalanche situation will be encountered over a wide area. The fresh and somewhat older wind slabs can be released easily in all aspects. Caution is to be exercised in particular adjacent to ridgelines and in gullies and bowls. Mostly the avalanches are medium-sized. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Caution and restraint are required.

Snowpack

dp.6: cold, loose snow and wind

20 to 40 cm of snow, and even more in some localities, fell on Monday. As a consequence of a strong wind from southwesterly directions, avalanche prone wind slabs formed in all aspects. In many cases wind slabs are lying on soft layers. In some cases new snow and wind slabs are lying on surface hoar, in particular in areas close to the tree line. Stability tests and field observations confirm this situation. These avalanche prone locations are sometimes covered with new snow and are barely recognisable, even to the trained eye. The old snowpack is largely stable.

Tendency

Fresh wind slabs are to be evaluated with care and prudence. Increase in avalanche danger as a consequence of new snow and wind, in particular in the south.