Bollettino valanghe

Border Graie Alps

Arpa Piemonte
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Pericolo valanghe

Above 2,500 m· Mattina
3 · Marcato
Below 2,500 m· Mattina
1 · Debole
Above 2,500 m· Pomeriggio
3 · Marcato
Below 2,500 m· Pomeriggio
2 · Moderato
Non aggiornato — questo bollettino è scaduto 4 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

New snow and wind slabs at elevated altitudes. In particular, however, the danger of moist and wet avalanches will increase as the day progresses.

Problemi valanghivi

  • Wind slab· Mattina

    • Above 2,500 m
    Dimensione
    3

    Stability: poor · Frequency: some

  • Wind slab· Pomeriggio

    • Above 2,500 m
    Dimensione
    3

    Stability: poor · Frequency: some

  • Wet snow· Pomeriggio

    • Below 2,800 m
    Dimensione
    2

    Stability: very poor · Frequency: some

Tendency

The weather will be mild. A clear night will be followed by favourable conditions generally, but the danger of wet and gliding avalanches will increase later. As a consequence of highly fluctuating temperatures and solar radiation the snow drift accumulations will stabilise during the next few days.

Avalanche Activity

New snow and wind slabs at elevated altitudes. In particular, however, the danger of moist and wet avalanches will increase as the day progresses.

Above approximately 2500 m: As a consequence of new snow and northeasterly wind, sometimes avalanche prone wind slabs formed in the last three days adjacent to ridgelines and in pass areas. Avalanches can be released in near-surface layers and reach large size in particular on very steep shady slopes. In particular on very steep grassy slopes and on rocky slopes medium-sized and, in isolated cases, large wet avalanches are possible as the day progresses as the moisture increases. Naturally triggered avalanches and penetration of the old snow cover indicate the unfavourable bonding of the snowpack. Backcountry tours should be started and concluded early.

Snowpack Structure

Over a wide area 40 to 60 cm of snow, and even more in some localities, has fallen since Sunday above approximately 2000 m. In the last two days above approximately 2500 m numerous small and medium-sized avalanches were observed. Several occasionally large powder avalanches have been released at high altitude. Shady slopes as well as high altitudes: Over a wide area new snow and wind slabs are lying on a hard crust. A clear night: The surface of the snowpack has frozen to form a strong crust. Sunshine and high temperatures will give rise as the day progresses to rapid moistening of the snowpack. This applies in particular on steep east, south and west facing slopes at intermediate and high altitudes, as well as on north facing slopes below approximately 2400 m. Below approximately 2500 m only a little snow is lying on south facing slopes.

Bulletin data: Arpa Piemonte (via EAWS / avalanche.report)

Regioni coperte