Upper Passeier Valley

Moist slab avalanches and wet snow slides are the main danger. Weakly bonded old snow is to be evaluated with care and prudence.

Outgoing longwave radiation during the night will be reduced in some case. Moist and wet avalanches are the main danger.

Moist slab avalanches and wet snow slides are the main danger. Weakly bonded old snow is to be evaluated with care and prudence.

In the early morning the natural activity of small and medium moist and wet avalanches will gradually increase, in particular on sunny slopes below approximately 2600 m, as well as on very steep shady slopes below approximately 2200 m. Weak layers in the old snowpack can be released in very isolated cases by winter sport participants, especially on very steep shady slopes above approximately 2200 m, as well as on very steep east facing slopes above approximately 2400 m. The avalanches can be released in the weakly bonded old snow and reach medium size. Experience in the assessment of avalanche danger is required.

The surface of the snowpack will cool hardly at all during the overcast night and will already be soft in the early morning. These weather conditions will bring about a gradual weakening of the snowpack. Faceted weak layers exist in the old snowpack, especially on shady slopes above approximately 2200 m, as well as on east and west facing slopes above approximately 2400 m. The spring-like weather conditions gave rise to gradual moistening of the snowpack, especially on steep sunny slopes at high altitudes and in high Alpine regions, as well as on west, north and east facing slopes at intermediate and high altitudes.