Bulletin d’avalanche

North and center of Aran

Lauegi Val d'Aran
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Danger d’avalanche

Above 2,300 m
2 · Modéré
Below 2,300 m
1 · Faible
Périmé — ce bulletin a expiré 4 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Wind slabs at high altitude.

Problèmes avalancheux

  • Wind slab

    • Toutes altitudes

Avalanche Activity

Wind slabs at high altitude.

As a consequence of a moderate to strong wind from southeasterly directions, precarious wind slabs formed adjacent to ridgelines and in gullies and bowls. They are mostly only small but can in some cases be released easily. Above approximately 2300 m and in the valleys bordering the Ribagorçana basin and the Pallaresa basin the avalanche prone locations are more prevalent and the danger is greater. As a consequence of warming during the day and solar radiation small moist snow slides are possible in all altitude zones. Individual gliding avalanches can also occur.

Snowpack Structure

The new snow of the last few days is lying on a crust in all aspects. This snow is bonding only slowly with the old snowpack in particular on very steep, little used shady slopes and at high altitude. Low and intermediate altitudes: The old snowpack will be generally moist. The surface of the snowpack will freeze to form a strong crust and will soften during the day. Above approximately 2000 m there are 100 to 200 cm of snow. At high altitudes and in high Alpine regions snow depths vary greatly, depending on the infuence of the wind.

Tendency

Slight increase in danger of moist avalanches as the moisture increases. The danger of dry avalanches will decrease gradually.

Bulletin data: Lauegi, Conselh Generau d'Aran (CC BY 4.0)

Régions couvertes