Bollettino valanghe

Lower Tauern South

LWD Salzburg
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Pericolo valanghe

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Non aggiornato — questo bollettino è scaduto 5 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

The wet snow problem remains, above 2200 m there are avalanche prone locations in the drift and persistent weak layer

Problemi valanghivi

  • Wet snow

    • Below 2,200 m

  • Wind slab

    • Above 2,200 m

  • Persistent weak layers

    • Above 2,200 m

Avalanche Activity

The wet snow problem remains, above 2200 m there are avalanche prone locations in the drift and persistent weak layer

The avalanche risk is moderate. Wet loose snow and slab avalanches are possible in all aspects on slopes below around 2200 metres that have not yet been discharged. The avalanches can occur spontaneously or be triggered by individuals. They usually remain small to medium-sized. Above 2200 m, small slab avalanches can be triggered in fresh wind slab in some places. The number and size of snowdrift accumulations increase slightly with altitude. In a few places above 2200 m, weak layers in the persistent weak layer can also be disturbed by individuals in the extended northern sector; the slabs can reach medium size.

Snowpack Structure

Outgoing longwave radiation at night is limited; a thin crust of melted snow can only form on the snow surface at summit level. With the onset of rain, the snowpack is further soaked up to around 2000 metres. At higher altitudes (from around 2200 m), small-scale snowdrift accumulations form. The fresh wind slab contains soft layers that are temporarily prone to triggering. In addition, on shady slopes from around 2200 m, there are still prone to triggering weak layers of angular shapes and deep rime in the old snowpack.

Weather Forecast

During the night to Friday, the clouds will become increasingly dense and precipitation will set in from the second half of the night, with heavier showers possible at times. The snowfall level will be between 1,800 and 2,000 metres, with around 5 - 10 cm of new fallen snow above that, and up to 20 cm locally. The north-westerly wind blows briskly to strongly, with wind speeds of up to 70 km/h possible at exposed high altitudes. The temperature at 2000 metres will be between 0 and 2 degrees, at 3000 metres -4 degrees.

Tendency

Saturday will bring more sunshine and a slight rise in temperatures. The fresh wind slab sets quickly, the old and wet snow problem remains.

Bulletin data: Avalanche Warning Service Salzburg (CC BY 4.0)

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