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 appreciable 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. Natural avalanches are possible in the afternoon. Avalanches can be released in the weakly bonded old snow and reach large size in isolated cases.
Dry avalanches can additionally be released, even by small loads in isolated cases, especially on very steep west, north and east 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 no longer entirely fresh wind slabs can be released by a single winter sport participant in isolated cases in particular on very steep shady slopes in high Alpine regions.
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. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack below approximately 3000 m. Steep west, north and east facing slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Tendency
Outgoing longwave radiation during the night will be good. 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 and solar radiation there will be an increase in the danger of wet avalanches.
EARLIER Danger level
2500m
Avalanche Problem
Persistent weak layer
2500m
LATER Danger level
3000m
Avalanche Problem
Wet snow
3000m
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 an appreciable 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. Natural avalanches are possible in the afternoon. Avalanches can be released in the weakly bonded old snow and reach large size in isolated cases.
Dry avalanches can additionally be released, even by small loads in isolated cases, especially on very steep west, north and east 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.
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. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack below approximately 3000 m. Steep west, north and east facing slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Tendency
Outgoing longwave radiation during the night will be good. 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 and solar radiation there will be an increase in the danger of wet avalanches.
EARLIER Danger level
2500m
Avalanche Problem
Persistent weak layer
2500m
LATER Danger level
3000m
Avalanche Problem
Wet snow
3000m
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 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 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 west, north and east 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.
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. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack below approximately 3000 m. Steep west, north and east facing slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Tendency
Outgoing longwave radiation during the night will be good. 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 and solar radiation there will be an increase in the danger of wet avalanches.
EARLIER Danger level
2500m
Avalanche Problem
Persistent weak layer
2500m
LATER Danger level
3000m
Avalanche Problem
Wet snow
3000m
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 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.
Individual avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2500 m. Especially transitions from a shallow to a deep snowpack are unfavourable. The avalanche prone locations are difficult to recognise.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
The surface of the snowpack has frozen to form a strong crust and will soften during the day. Sunshine and high temperatures will give rise to gradual softening of the snowpack below approximately 3000 m. Steep west, north and east facing slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Tendency
Outgoing longwave radiation during the night will be good. 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 and solar radiation there will be an increase in the danger of wet avalanches.
EARLIER Danger level
LATER Danger level
Avalanche Problem
Wet snow
Wet snow requires caution.
In the late morning the likelihood of wet avalanches being released will increase. Wet avalanches can in isolated cases be released by a single winter sport participant. The avalanche prone locations are to be found in particular on very steep west, north and east facing slopes at elevated altitudes. Avalanches can in isolated cases release the saturated snowpack and reach medium size.
Snowpack
dp.10: springtime scenario
The snowpack is wet all the way through and its surface has a melt-freeze crust. The surface of the snowpack will soften quickly. In particular on steep sunny slopes as well as below approximately 1800 m only a little snow is now lying.
Tendency
The danger of wet avalanches will persist.
EARLIER Danger level
LATER Danger level
Avalanche Problem
Wet snow
Wet snow requires caution.
As the day progresses the likelihood of wet avalanches being released will increase quickly. In the regions where the outgoing longwave radiation during the night is reduced the danger will increase earlier.
Wet avalanches can in isolated cases be released by a single winter sport participant. The avalanche prone locations are to be found in particular on very steep west, north and east facing slopes at elevated altitudes. Avalanches can in isolated cases release the saturated snowpack and reach medium size.
Snowpack
dp.10: springtime scenario
During the night the weather will be partly cloudy in some regions. The snowpack is wet all the way through and its surface has a melt-freeze crust. The surface of the snowpack will soften quickly. In particular on steep sunny slopes as well as below approximately 1800 m only a little snow is now lying.
Tendency
The danger of wet avalanches will persist.
Danger level
2800m
Avalanche Problem
Wet snow
2800m
Persistent weak layer
2400m
Weakly bonded old snow and wet snow represent the main danger.
As a consequence of warming during the day and solar radiation there will be an increase in the danger of wet avalanches. From origins in starting zones where no previous releases have taken place natural avalanches are possible, in particular medium-sized ones. This applies on shady slopes below approximately 2800 m, as well as on sunny slopes at elevated altitudes. On steep shady slopes avalanches can be released in the weakly bonded old snow and reach large size in isolated cases.
Individual avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2400 m. Such avalanche prone locations are difficult to recognise. Especially transitions from a shallow to a deep snowpack are unfavourable.
In addition the fresh wind slabs in high Alpine regions are capable of being triggered in isolated cases. Wind slabs are mostly small.
Backcountry tours and off-piste skiing should be started and concluded early.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
The surface of the snowpack will freeze to form a strong crust only at high altitudes and will already soften in the late morning. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack below approximately 2800 m. The high humditiy will give rise in the afternoon to a loss of strength within the snowpack also on steep shady slopes.
Steep west, north and east facing slopes above approximately 2400 m: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Below approximately 1800 m from a snow sport perspective, in most cases insufficient snow is lying.
Tendency
On Friday it will be sunny. The weather will be mild. 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 and solar radiation there will be an increase in the danger of wet avalanches.
Danger level
2000m
Avalanche Problem
Wet snow
2000m
Wet snow requires caution.
Only isolated wet avalanches are possible. Caution is to be exercised on extremely steep shady slopes. In very isolated cases avalanches are medium-sized.
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.
