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 2600 m, also on very steep sunny slopes at elevated altitudes.
Avalanche prone locations for dry avalanches are to be found on very steep west, north and east facing slopes above approximately 2600 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 2600 m, as well as on steep sunny slopes at elevated altitudes.
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
LATER Danger level
2400m
Increase in avalanche danger as a consequence of warming during the day and solar radiation. Weak layers in the old snowpack can still be released in very isolated cases.
The avalanche conditions in the morning are mostly favourable. As a consequence of warming during the day and the solar radiation, the likelihood of wet avalanches being released will increase. This applies in all aspects below approximately 2400 m, and on south facing slopes at elevated altitudes. Sometimes avalanches are medium-sized and can be released also by a single winter sport participant.
In very isolated cases dry avalanches can also be released in the old snowpack. Avalanche prone locations are to be found in particular on very steep west, north and east facing slopes above approximately 2400 m. Avalanches can reach medium size.
Restraint should be exercised because avalanches can sweep people along and give rise to falls.
Snowpack
dp.7: snow-poor zones in snow-rich surrounding dp.10: springtime scenario
Outgoing longwave radiation during the night will be quite good at times. The surface of the snowpack will freeze to form a strong crust and will already soften in the late morning. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack.
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.
Tendency
The avalanche danger will increase during the day.
EARLIER Danger level
LATER Danger level
As the day progresses the likelihood of wet avalanches being released will increase a little.
The avalanche conditions in the morning are mostly favourable. As the day progresses the likelihood of wet avalanches being released will increase. This applies in all aspects. Avalanches are rather small but can be released also by a single winter sport participant.
Restraint should be exercised because avalanches can sweep people along and give rise to falls.
Snowpack
dp.10: springtime scenario dp.1: deep persistent weak layer
Outgoing longwave radiation during the night will be quite good at times. The surface of the snowpack will freeze to form a strong crust and will already soften in the late morning. Sunshine and high temperatures will give rise to increasing and thorough wetting of the snowpack.
Tendency
As the day progresses the likelihood of wet avalanches being released will increase a little.
