Border Pennine Alps

Slab avalanches and wet avalanches during the day are still possible.

Slab avalanches and wet avalanches during the day are still possible.

Wind slabs can still in isolated cases be released by small loads, but they will be small in most cases. This applies in particular on very steep shady slopes especially above approximately 2400 m. On very steep slopes the avalanches can be triggered in the various layers of new snow and reach medium size in some cases. As a consequence of warming during the day and the solar radiation, the likelihood of dry and moist avalanches being released will increase gradually in particular on rocky southeast and southwest facing slopes below approximately 2800 m. In particular very steep sunny slopes as well as places that are protected from the wind: As a consequence of warming during the day and solar radiation more medium-sized and, in isolated cases, large moist and wet avalanches are possible. Backcountry touring and other off-piste activities call for experience in the assessment of avalanche danger and careful route selection.

Adjacent to ridgelines and in gullies and bowls wind slabs formed. New snow and wind slabs are lying on the soft surface of an old snowpack. Sunshine and high temperatures gave rise to moistening of the snowpack in particular on steep sunny slopes below approximately 2800 m. As a consequence of highly fluctuating temperatures a crust formed on the surface during the last few days, especially on sunny slopes also at intermediate and high altitudes, as well as on shady slopes below approximately 2300 m. The weather conditions will foster a gradual stabilisation of the snow drift accumulations.

Outgoing longwave radiation during the night will be quite good. The surface of the snowpack will soften earlier than the day before. The danger of moist snow slides and avalanches will already increase in the late morning.