Avalanche.report

Thursday 12 December 2024

Published 11 Dec 2024, 17:00:00


Danger level


Avalanche Problem
Gliding snow


Avalanche danger is low.

Avalanche danger is low, in isolated cases small drifts can trigger small sized slab avalanches by minimum addtional loading, e.g. the weight of one single skier. Also in steep, sunny, rocky terrain, small-sized moist loose-snow avalanches can unleash.

Snowpack

A few centimetres of loosely-packed powder snow now blanket a diversely thick but stable old snowpack. The fundament is often moist. On sunny slopes the surface snow is moistening and will form at night a thin melt-freeze crust which will melt again tomrrow as the sun hits it.

Tendency

Little change in avalanche danger levels is anticipated.


Danger level

2000m
Avalanche Problem
Persistent weak layer
2000m


Weak layers often evident in near-surface old snow

Avalanche danger above 2000m is moderate, danger is low below that altitude. Fresh and older snowdrifts can trigger a small-to-medium sized slab avalanche by minimum additional loading in some places. Danger zones occur in steep terrain all aspects and are often difficult to recognize. Avalanches can in rare cases grow to medium size. In addition, small moist loose-snow avalanches can trigger in extremely steep rocky terrain.

Snowpack

A few centimetres of powder snow blanket older snowdrifted masses. These drifts lie at 1800-2200m atop a melt-freeze crust which formed last Friday which is capable of bearing loads, under which a trigger-sensitve layer of faceted crystals has formed in some places. In addition, inside the old snowdrifted masses there are often weak intermediate layers. The old snowpack fundament is varyingly thick, in exposed zones it is often lacking completely. At intermediate altitudes the fundament is often moist. On the surface at intermediate altitudes, a thin melt-freeze crust will form at night on sunny slopes, then be melted again once sunshine strikes tomorrow.

Tendency

Avalanche danger levels are expected to slowly recede.