New snow
- Above 1,800 m
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.
At slightly warmer air temperatures, the snowpack transforms and collapses more quickly. Snow has melted on the highest peaks on sunny slopes, while only the high alpine regions have remained dry. The snowpack is made up of layers of bonded snow that are already somewhat compacted. The coherence of the layers of blown snow in snowdrift accumulations built up by the southerly wind during the snowfall is weaker. In the old snow cover, there are several weak layers of faceted snow crystals and sheared grains deep below the surface.
On Tuesday, a south-westerly wind will blow, with clouds on the coastal side of the Julian Mountains. In the Southern Julian Alps orographic precipitation will occur, above 1000 m as snow. Elsewhere, clouds and precipitation will be less. The zero-degree level will be around 1200 m and around -4 °C at 2000 m.
The danger of avalanches will remain similar.
Bulletin data: Slovenian Environment Agency (ARSO) (via EAWS / avalanche.report)