Natural avalanches are to be expected as the day progresses.
An unfavourable avalanche situation will prevail. Wet snow represents the main danger.
In the early morning as a consequence of warming during the day and solar radiation there will be a rapid increase in the danger of wet avalanches. Most and wet avalanches can in some places be released by a single winter sport participant. Caution is to be exercised in particular on very steep slopes below approximately 2500 m. As the penetration by moisture increases the prevalence of the avalanche prone locations will increase as the day progresses. More frequent wet slab avalanches are to be expected in the afternoon. Caution is to be exercised in particular on steep shady slopes between approximately 2200 and 2600 m. Especially here wet avalanches can penetrate even deep layers and reach large size. This also applies in isolated cases in highly frequented off-piste terrain. In steep gullies the avalanches can reach areas without any snow cover.
Individual avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2500 m. Such avalanche prone locations are difficult to recognise. Especially transitions from a shallow to a deep snowpack are unfavourable.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be severely restricted. For this reason the snowpack will only just freeze. Sunshine and high temperatures will give rise as the day progresses 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. West, north and east facing slopes above approximately 2200 m: Towards its base, the snowpack consists of faceted crystals.
Tendency
Outgoing longwave radiation during the night will be quite good. The backcountry touring conditions in the morning at elevated altitudes are quite favourable. 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.
EARLIER Danger level
2500m
Avalanche Problem
Wet snow
2500m
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 a consequence of warming during the day and solar radiation there will be an increase in the danger of wet avalanches. Individual natural avalanches are possible as the day progresses. This applies on shady slopes below approximately 2500 m, as well as on sunny slopes at elevated altitudes. Especially on steep shady slopes avalanches can be released in the weakly bonded old snow and reach large size in isolated cases.
Dry avalanches can additionally be released by people, 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 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 3000 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: 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 appreciable increase in the danger of wet avalanches.
Danger level
Avalanche Problem
Wet snow
Wet snow represents the main danger.
Wet avalanches can in some places 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. As the day progresses the likelihood of wet avalanches being released will increase.
Snowpack
dp.10: springtime scenario
The snowpack will be wet all the way through over a wide area. The surface of the snowpack will only just freeze and 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 avalanche danger will increase during the day. Wet snow requires caution.
Danger level
Avalanche Problem
Wet snow
Wet snow represents the main danger.
Wet avalanches can in some places 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. As the day progresses the likelihood of wet avalanches being released will increase.
Snowpack
dp.10: springtime scenario
The snowpack will be wet all the way through over a wide area. The surface of the snowpack will cool hardly at all during the overcast night and will already be soft in the early morning. In particular on steep sunny slopes as well as below approximately 1800 m only a little snow is now lying.
