Bollettino valanghe

Adamello

ARPA Lombardia
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Pericolo valanghe

Above 2,400 m
2 · Moderato
Below 2,400 m
1 · Debole
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Non aggiornato — questo bollettino è scaduto 6 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Outgoing longwave radiation during the night will be severely restricted. Weak layers in the old snowpack necessitate defensive route selection. Shady slopes where weaknesses exist in the old snowpack are especially precarious. As a consequence of warming during the day, the likelihood of moist avalanches being released will increase on south facing slopes below approximately 2600 m.

Problemi valanghivi

  • Persistent weak layers

    • Above 2,400 m
    Dimensione
    2

    Stability: poor · Frequency: few

  • Wet snow

    • Above 1,200 m
    Dimensione
    2

    Stability: fair · Frequency: few

Avalanche Activity

Outgoing longwave radiation during the night will be severely restricted. Weak layers in the old snowpack necessitate defensive route selection. Shady slopes where weaknesses exist in the old snowpack are especially precarious. As a consequence of warming during the day, the likelihood of moist avalanches being released will increase on south facing slopes below approximately 2600 m.

Weak layers in the old snowpack can still be released in some places by individual winter sport participants in particular above approximately 2400 m. This applies in particular in shady places that are protected from the wind. Avalanches can penetrate down to the ground and reach large size in isolated cases. As a consequence of warming during the day, the likelihood of moist and wet avalanches being released will increase on south facing slopes below approximately 2600 m. Avalanches can occur in particular in starting zones where no previous releases have taken place.

Snowpack Structure

At elevated altitudes a treacherous avalanche situation will be encountered in some localities. Towards its base, the snowpack is faceted and weak. Avalanches can be released in deeper layers also. In addition the fresh wind slabs adjacent to ridgelines and in gullies and bowls are easily triggered. Outgoing longwave radiation during the night will be severely restricted. The surface of the snowpack cooled hardly at all during the overcast night and will already be soft in the early morning. This applies in particular on sunny slopes below approximately 2600 m.

Tendency

As a consequence of warming during the day the prevalence of the avalanche prone locations will increase as the day progresses.

Bulletin data: ARPA Lombardia (via EAWS / avalanche.report)

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