Glockner Group Pasterze

The danger of wet avalanches will already increase in the late morning. Weak layers in the old snowpack can be released in some places by individual winter sport participants.

The danger of wet avalanches will already increase in the late morning. Weak layers in the old snowpack can be released in some places by individual winter sport participants.

In the late morning as a consequence of warming during the day and solar radiation there will be a rapid increase in the danger of moist and wet avalanches. Avalanches can penetrate deep layers and reach large size in isolated cases. This applies in all aspects in particular below approximately 2400 m, as well as on very steep west, south and east facing slopes at high altitude. 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. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack can indicate the danger. In steep terrain there is a danger of falling on the hard snow surface.

Outgoing longwave radiation during the night will be quite good. The surface of the snowpack has frozen to form a strong crust only at high altitudes and will already soften in the late morning. The snowpack will become increasingly wet all the way through. This applies in all aspects below approximately 2400 m, as well as on steep sunny slopes at high altitude. 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 on steep sunny slopes in high Alpine regions.

Outgoing longwave radiation during the night will be reduced. The avalanche danger will already be elevated in the early morning. This applies in particular below approximately 2400 m.