Lechtal Alps East

Increase in danger of wet avalanches in the course of the day.

Increase in danger of wet avalanches in the course of the day.

As the day progresses as a consequence of warming during the day and solar radiation there will be an increase in the danger of wet avalanches. Wet avalanches can in some places be released by a single winter sport participant. This applies on very steep shady slopes below approximately 2500 m, as well as on very steep sunny slopes at elevated altitudes. As the penetration by moisture increases individual natural avalanches are possible in the afternoon. Avalanches can be released in the weakly bonded old snow and reach large size in isolated cases. On steep grassy slopes more small to medium-sized gliding avalanches are possible below approximately 2600 m. Dry avalanches can additionally be released, mostly by large additional loads in isolated cases, especially on very steep northwest, north and northeast facing slopes above approximately 2500 m. Especially transitions from a shallow to a deep snowpack are unfavourable. The avalanche prone locations are difficult to recognise.

The surface of the snowpack will freeze to form a strong crust and will soften during the day. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack below approximately 3000 m. Steep slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.

Outgoing longwave radiation during the night will be reduced. The backcountry touring conditions in the morning at elevated altitudes are generally favourable. As the day progresses as a consequence of warming during the day there will be an increase in the danger of wet avalanches. Some rain will fall in some regions.