Increase in danger of wet avalanches in the course of the day.
In the late morning a favourable avalanche situation will prevail. As the day progresses as a consequence of warming during the day and solar radiation there will be only a slight increase in the danger of wet avalanches. This applies on very steep northwest, north and northeast facing slopes below approximately 2500 m, as well as on very steep west and east facing slopes below approximately 2800 m, but in isolated cases also on very steep sunny slopes at elevated altitudes. Wet avalanches can in isolated cases be released by a single winter sport participant. In very isolated cases these can release the weakly bonded old snow as well and reach large size. This applies on very steep shady slopes below approximately 2500 m.
Dry avalanches can additionally in very isolated cases be released, mostly by large additional loads, especially on very steep northwest, north and northeast facing slopes above approximately 2500 m. The avalanche prone locations are very rare but are difficult to recognise.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be quite good. 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 gradual moistening of the snowpack at intermediate and high altitudes.
Shady slopes above approximately 2500 m: Faceted weak layers exist in the bottom section of the old snowpack.
At low and intermediate altitudes hardly any snow is lying.
Tendency
Outgoing longwave radiation during the night will be quite good. The danger of wet avalanches will increase a little during the day.
EARLIER Danger level
2500m
Avalanche Problem
Persistent weak layer
2500m
LATER Danger level
2800m
Avalanche Problem
Wet snow
2800m
Persistent weak layer
2500m
Increase in danger of wet avalanches in the course of the day.
In the late morning a favourable avalanche situation will be encountered over a wide area.
As the day progresses as a consequence of warming during the day and solar radiation there will be only a slight increase in the danger of wet avalanches. Wet avalanches can in isolated cases be released by a single winter sport participant. This applies on very steep northwest, north and northeast facing slopes below approximately 2500 m, as well as on very steep west and east facing slopes below approximately 2800 m, but in isolated cases also on very steep sunny slopes at elevated altitudes.
Avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2500 m. These places are very rare but are difficult to recognise.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be quite good. 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 gradual moistening of the snowpack at intermediate and high altitudes.
Shady slopes above approximately 2500 m: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
On steep sunny slopes as well as below approximately 1800 m hardly any snow is lying.
Tendency
Outgoing longwave radiation during the night will be quite good. The danger of wet avalanches will increase a little during the day.
Danger level
Wet snow requires caution.
Only isolated wet avalanches are possible. Caution is to be exercised on extremely steep shady slopes. Mostly avalanches are rather small.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
The surface of the snowpack will freeze to form a strong crust and will soften during the day.
Tendency
Low avalanche danger will prevail. Wet snow requires caution.
