Danger level

1700m

Persistent weak layer		1700m
Wind slab		1700m

The current snowpack pattern is uncommon and requires special attention and caution!

New fallen snow in the high alpine regions, weak layers persist.

In particular, even a small additional load can trigger a small avalanche on snowdrift accumulations. A triggered avalanche or an otherwise large Additional load may exceed the load-bearing capacity of the deep hard layers, triggering a deep and widespread (large) avalanche. Such weak layers are particularly abundant in the axis above the forest, but are not excluded elsewhere. Gliding avalanches also occur on steep smooth slopes.

Snowpack

dp.1: deep persistent weak layer
dp.4: cold following warm / warm following cold

In the last 3 days, several centimetres of New fallen snow have fallen above an altitude of around 1400 m, locally up to 20 cm. Above 1700 m the snow fell on the hard surface of the Old snow cover, lower down on breakable crust or soft ground. A strong nor'easter on Sunday morning built up new small snow drifts which did not connect well with the frozen ground. The old snow cover is made up of layers of bonded snow that have already melted a little. Deep below the surface, the old snow cover contains several weak layers of shreds and coarse grains.

Tendency

The danger of avalanches will remain similar.

Danger level

1200m

Gliding snow

1200m

Increased amount of new snow in the highest parts of the mid-mountains, snowdrift accumulations

Blowing snow, gliding avalanches.

In particular, even a small additional load can trigger a small avalanche on snowdrift accumulations. Gliding avalanches also occur on steep, smooth slopes.

Snowpack

The old snow cover is made up of layers of bonded snow that are already somewhat compacted and mostly well connected. A depth hoar has formed at the interface between the snowpack and the ground.

Tendency

The danger of avalanches will remain similar.