The danger of wet avalanches will already increase in the late morning. Weak layers in the old snowpack can be released in some places by individual winter sport participants.
In the late morning as a consequence of warming during the day and solar radiation there will be a rapid increase in the danger of moist and wet avalanches. Avalanches can penetrate deep layers and reach large size in isolated cases. This applies in all aspects in particular below approximately 2400 m, as well as on very steep west, south and east facing slopes between approximately 2400 and 2800 m.
Avalanche prone locations for dry avalanches are to be found on very steep shady slopes above approximately 2400 m. The avalanche prone locations are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack can indicate the danger.
In steep terrain there is a danger of falling on the hard snow surface.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be good. The surface of the snowpack has frozen to form a strong crust only at high altitudes and will already soften in the late morning. The snowpack will become increasingly wet all the way through. This applies in all aspects below approximately 2400 m, as well as on steep sunny slopes between approximately 2400 and 2800 m.
Isolated avalanche prone weak layers exist in the top section of the old snowpack. Towards its base, the snowpack consists of faceted crystals. This applies in particular on west, north and east facing slopes above approximately 2200 m, as well as on steep sunny slopes in high Alpine regions.
Tendency
Outgoing longwave radiation during the night will be good over a wide area. The avalanche danger will increase during the day.
EARLIER Danger level
2400m
Avalanche Problem
Persistent weak layer
2400m
Wet snow
2400m
LATER Danger level
2600m
Avalanche Problem
Wet snow
2600m
Persistent weak layer
2400m
The danger of wet avalanches will already increase in the late morning. Weak layers in the old snowpack can still be released in isolated cases.
In the late morning as a consequence of warming during the day and solar radiation there will be a rapid increase in the danger of moist and wet avalanches. Avalanches can penetrate deep layers and reach medium size. This applies in all aspects in particular below approximately 2600 m, also on very steep sunny slopes at elevated altitudes.
Avalanche prone locations for dry avalanches are to be found in particular on very steep west, north and east facing slopes above approximately 2400 m. The avalanche prone locations are difficult to recognise. Especially transitions from a shallow to a deep snowpack are unfavourable.
In steep terrain there is a danger of falling on the hard snow surface.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be good. The surface of the snowpack has frozen 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. This applies in all aspects below approximately 2600 m, as well as on steep sunny slopes at elevated altitudes.
The old wind slabs are lying on top of a weakly bonded old snowpack in particular on west, north and east facing slopes above approximately 2400 m. The snowpack will be subject to considerable local variations.
On steep sunny slopes at low and intermediate altitudes hardly any snow is lying.
Tendency
Outgoing longwave radiation during the night will be good over a wide area. The avalanche danger will increase during the day.
Danger level
Low avalanche danger will prevail.
As the day progresses the likelihood of wet avalanches being released will increase especially on extremely steep east and west facing slopes. Avalanches can in very isolated cases penetrate deep layers and reach medium size in isolated cases. In steep terrain there is a danger of falling on the hard snow surface.
Snowpack
dp.10: springtime scenario
The snowpack will be subject to considerable local variations. In particular on steep sunny slopes at low and intermediate altitudes hardly any snow is lying. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack.
