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 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. The surface of the snowpack will soften earlier than the day before. 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 reduced in some case. The surface of the snowpack will freeze to form a strong crust and will soften earlier than the day before. 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 reduced. The danger of wet avalanches will already increase in the late morning.
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.
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 reduced at times. The surface of the snowpack will freeze to form a strong crust and will soften earlier than the day before. 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 reduced. The danger of wet avalanches will already increase in the early morning.
Danger level
Wet snow requires caution.
As a consequence of warming during the day and the solar radiation, the likelihood of wet avalanches being released will increase a little. The surface of the snowpack will soften earlier than the day before. Hardly any more wet avalanches are possible. This applies in particular on extremely steep shady slopes. Mostly avalanches are small.
Snowpack
dp.10: springtime scenario
The snowpack will be wet all the way through over a wide area. The surface of the snowpack will freeze to form a strong crust and will soften earlier than the day before. At low and intermediate altitudes hardly any snow is lying.
Tendency
Outgoing longwave radiation during the night will be reduced. The danger of wet avalanches will already increase in the late morning.
EARLIER Danger level
LATER Danger level
Avalanche Problem
Wet snow
Individual avalanche prone locations for wet avalanches are to be found in particular on extremely steep shady slopes.
As the day progresses as a consequence of warming during the day and solar radiation there will be only a slight increase in the avalanche danger.
Only isolated wet avalanches are possible. This applies in particular on extremely steep shady slopes. Mostly avalanches are small.
Snowpack
dp.10: springtime scenario
The snowpack will be wet all the way through over a wide area. The surface of the snowpack will freeze to form a strong crust and will soften quickly. On steep sunny slopes as well as below approximately 1800 m hardly any snow is lying.
