Bollettino valanghe

Lechtal Alps Central

LWD Tirol
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Pericolo valanghe

Above treeline
3 · Marcato
Below treeline
1 · Debole
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Non aggiornato — questo bollettino è scaduto 7 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Wind slabs and weakly bonded old snow represent the main danger.

Problemi valanghivi

  • Wind slab

    • Above treeline
    Dimensione
    2

    Stability: poor · Frequency: many

  • Persistent weak layers

    • Above treeline
    Dimensione
    2

    Stability: poor · Frequency: some

Avalanche Activity

Wind slabs and weakly bonded old snow represent the main danger.

The fresh and somewhat older wind slabs are lying on the unfavourable surface of an old snowpack on west to north to east facing aspects. These can be released easily, even by a single winter sport participant,. Avalanches can release the weakly bonded old snow as well and reach medium size. Such avalanche prone locations are widespread. Avalanches can additionally in some places be released in the weakly bonded old snow by a single winter sport participant. These places are barely recognisable. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack serve as an alarm indicating the danger.

Snowpack Structure

Up to 10 cm of snow will fall. The fresh and somewhat older wind slabs are lying on surface hoar in particular on wind-protected shady slopes. The snowpack is unfavourably layered. The old snowpack consists of faceted crystals.

Tendency

The wind slabs are bonding only slowly with the old snowpack. Weak layers in the old snowpack can be released even now by individual winter sport participants.

Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)

Regioni coperte