Upper Passeier Valley

Wind slabs represent the main danger. Wet snow requires caution.

Wind slabs represent the main danger. Wet snow requires caution.

The wind slabs of the last few days can be released easily, even by a single winter sport participant,. The avalanche prone locations are to be found in particular on steep west, north and east facing slopes above approximately 2200 m. Caution is to be exercised in gullies and bowls, and behind abrupt changes in the terrain. To some extent avalanches can also penetrate deep layers and reach large size. As the penetration by moisture increases wet and gliding avalanches are possible, in the event of prolonged bright spells especially below approximately 2200 m as well as.

As a consequence of the strong to storm force northwesterly wind, snow drift accumulations formed during the last few days. In some cases the various wind slabs have bonded poorly with each other and the old snowpack. This applies on west, north and east facing slopes above approximately 2200 m. Caution is to be exercised in particular on very steep northeast facing slopes as well as at elevated altitudes. On sunny slopes the snowpack is better bonded. Faceted weak layers exist in the old snowpack, especially on shady slopes above approximately 2400 m. Outgoing longwave radiation during the night will be reduced over a wide area. The spring-like weather conditions on Friday will give rise to increasing and thorough wetting of the snowpack below approximately 2200 m.

The avalanche danger will persist.