Bollettino valanghe

Venediger Group South

LWD Tirol
Vedi sulla mappa

Pericolo valanghe

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

In sintesi

Fresh wind slabs represent the main danger. Weakly bonded old snow requires caution.

Problemi valanghivi

  • Wind slab

    • Above treeline
    Dimensione
    2

    Stability: poor · Frequency: many

  • Persistent weak layers

    • Above 2,400 m
    Dimensione
    3

    Stability: fair · Frequency: few

Avalanche Activity

Fresh wind slabs represent the main danger. Weakly bonded old snow requires caution.

The fresh and older wind slabs are prone to triggering in all aspects above the tree line. Caution is to be exercised in particular on wind-loaded slopes, as well as adjacent to ridgelines and in gullies and bowls. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Weak layers in the old snowpack can be released especially by large additional loads in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. This applies on very steep slopes above approximately 2400 m. Avalanches can reach large size in isolated cases. On steep grassy slopes small to medium-sized gliding avalanches are possible. This applies in particular in the regions with a lot of snow.

Snowpack Structure

Over a wide area 10 to 15 cm of snow will fall until the early morning. In particular in the northwest and in the northeast in some regions up to 25 cm of snow will fall. As a consequence of the strong wind the wind slabs will increase in size during the night. This applies especially in the regions with a lot of snow. The fresh and somewhat older wind slabs are lying on soft layers in particular on shady slopes at elevated altitudes. Faceted weak layers exist in the centre of the snowpack in particular above approximately 2400 m.

Tendency

The avalanche danger will persist. As a consequence of new snow and a strong to storm force wind from northwesterly directions, further wind slabs will form.

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

Regioni coperte