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. Additionally in some places avalanches can also be triggered in deep layers and reach large size. As a consequence of warming wet and gliding avalanches are possible, in the event of prolonged bright spells especially below approximately 2200 m as well as.

10 to 20 cm of snow fell on Wednesday. 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 together, in particular on shady slopes. 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 severely restricted over a wide area. The spring-like weather conditions on Thursday will give rise to gradual and thorough wetting of the snowpack below approximately 2200 m.

Some snow will fall on Friday. The wind will be strong. At elevated altitudes the danger of dry avalanches will increase. The danger of wet avalanches will decrease gradually.