| Danger level | Simbol | Stability of the snow layer | Probability of avalanche triggering |
| 5 - Very high risk |  | The instability of the snow layer is generalized. | Even on the very slightly steep slopes numerous avalanches of large, often even very large dimensions can spontaneously be produced. |
| 4 - High risk |  | The snow layer is very little stabilized on most slopes*. | Avalanche triggering is likely even by a slight overload** on many slopes that are sufficiently inclined. In some situations, many spontaneous avalanches of medium and often large dimmensions are possible. |
| 3 - Considerable risk |  | On numerous inclined slopes*, the snow layer is medium or little stabilized. | Avalanche triggering is possible even with a light overload**, especially on the slopes described in the bulletin. In some situations spontaneous avalanches of medium and sometimes large dimmensions are possible. |
| 2 - Moderate risk |  | On some slopes sufficiently inclined*, the snow layer is medium stabilized; the rest is stable. | Avalanche triggering is possible especially at heavy overloads** and on some steep slopes described in the bulletin. Spontaneous avalanches of large dimmensions are not expected. |
| 1 - Low risk |  | The snow layer is generally stabilized on most slopes. | Avalanche triggering is possible only isolated on very steep slopes and in case of a heavy overloads**. Spontaneously only small snow flows or small avalanches may occur. |