EARLIER

Danger level

2400m

Persistent weak layer		2400m
Wet snow		2400m

LATER

Danger level

2800m

Wet snow		2800m
Persistent weak layer		2400m

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 at high altitude.

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 quite 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 at high altitude.

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 at high altitude, as well as on steep sunny slopes in high Alpine regions.

Tendency

Outgoing longwave radiation during the night will be reduced. The avalanche danger will already be elevated in the early morning. This applies in particular below approximately 2400 m.

EARLIER

Danger level

2400m

Persistent weak layer		2400m
Wet snow		2400m

LATER

Danger level

2800m

Wet snow		2800m
Persistent weak layer		2400m

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 medium size. This applies in all aspects in particular below approximately 2400 m, also on very steep sunny slopes at high altitude.

Avalanche prone locations for dry avalanches are to be found in particular on very steep shady 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 quite 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 at high altitude.

The old wind slabs are lying on top of a weakly bonded old snowpack in particular on west, north and east facing slopes at high altitude. 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 reduced. The avalanche danger will already be elevated in the early morning. This applies in particular below approximately 2400 m.

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.

Tendency

Low avalanche danger will prevail.