Glockner Group Pasterze

The danger of moist and wet avalanches will already be elevated in the early morning.

The danger of moist and wet avalanches will already be elevated in the early morning.

The danger of moist and wet avalanches will already be elevated in the early morning. As the day progresses as a consequence of warming during the day and solar radiation there will be an additional increase in the danger. Avalanches can penetrate deep layers and reach large size. This applies in all aspects below approximately 2400 m, as well as on very steep sunny slopes below approximately 2800 m. Avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2400 m. The avalanche prone locations are difficult to recognise. Especially transitions from a shallow to a deep snowpack are unfavourable. In addition the fresh wind slabs in high Alpine regions are prone to triggering in some cases, especially adjacent to ridgelines. These are mostly small.

Outgoing longwave radiation during the night will be reduced. The surface of the snowpack will freeze very little. Sunshine and high temperatures will give rise from early morning to rapid softening of the snowpack. The snowpack will become increasingly wet all the way through. This applies in all aspects below approximately 2400 m, as well as on sunny slopes at elevated altitudes. Isolated avalanche prone weak layers exist in the top section of the old snowpack. Towards its base, the snowpack consists of faceted crystals. This applies in particular on west, north and east facing slopes at high altitude, as well as in all aspects in high Alpine regions.

Increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation.