Bollettino valanghe

Lasörling Group

LWD Südtirol
Vedi sulla mappa

Pericolo valanghe

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

In sintesi

New snow and weakly bonded old snow represent the main danger. Gliding avalanches and loose snow avalanches are to be expected.

Problemi valanghivi

  • New snow

    • Above treeline
    Dimensione
    3

    Stability: very poor · Frequency: many

  • Persistent weak layers

    • Above 2,400 m
    Dimensione
    3

    Stability: very poor · Frequency: some

  • Gliding snow

    • Below 2,400 m
    Dimensione
    2

    Stability: very poor · Frequency: some

Avalanche Activity

New snow and weakly bonded old snow represent the main danger. Gliding avalanches and loose snow avalanches are to be expected.

A very large quantity of fresh snow and the sometimes large wind slabs that are being formed by the moderate to strong southerly wind can be released very easily in all aspects above the tree line. The avalanche prone locations are sometimes covered with new snow and are barely recognisable because of the poor visibility. Individual large natural avalanches are possible, especially in case of releases originating from very steep high-altitude shady starting zones. Avalanches can also be triggered in the old snowpack and reach quite a large size in particular on very steep west, north and east facing slopes. Such avalanche prone locations are to be found in particular above approximately 2400 m. As the day progresses more frequent medium-sized and, in isolated cases, large loose snow avalanches are to be expected, in the event of prolonged bright spells especially. On steep grassy slopes medium-sized gliding avalanches are possible as a consequence of the new snow, especially on sunny slopes below approximately 2400 m. Backcountry touring and other off-piste activities call for great caution and restraint.

Snowpack Structure

Up to 70 cm of snow fell on Friday above approximately 1500 m. The southerly wind will transport the new snow significantly. The fresh wind slabs will be deposited on soft layers in all aspects. In some cases new snow and wind slabs are lying on a weakly bonded old snowpack, in particular on steep west and east facing slopes above approximately 2400 m, as well as on steep north facing slopes above approximately 2200 m.

Tendency

The weather conditions will prevent a rapid stabilisation of the near-surface layers. More loose snow avalanches are to be expected as the day progresses, in particular medium-sized ones, in the event of solar radiation especially on extremely steep sunny slopes. The danger of gliding avalanches will persist, in particular on steep east, south and west facing slopes below approximately 2400 m.

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

Regioni coperte