|Risk level 1||Snow layers are generally very stable.
Avalanches are unlikely except when heavy loads** are applied on a very few extreme steep slopes. Any spontaneous avalanches will be minor sloughs. In general, safe conditions.
|Risk level 2||On some steep slopes* the snow is only moderately stable. Elsewhere it is very stable.
Avalanches may be triggered when heavy loads** are applied, especially on a few generally identified steep slopes. Large spontaneous avalanches are not expected.
|Risk level 3||On many steep slopes* the snow is only moderately or weakly stable.
Avalanches may be triggered on many slopes even if only light loads** are applied. On some steeper slopes*, medium or even fairly large spontaneous avalanches may occur.
|Risk level 4||On most steep slopes the snow is not stable.
Avalanches are likely to be triggered on many slopes even if only light loads** are applied. In some places, many medium or sometimes large spontaneous avalanches are likely.
|Risk level 5||The snow layer is generally very unstable.
Even on gentle slopes, many large spontaneous avalanches are likely to occur.
* Avalanche-prone areas are defined exactly in the detailed avalanche hazard report (altitude, inclination, exposure, type of terrain):
- Moderately steep terrain: slopes less steep than 30 degrees <
- Steep slopes: steeper than 30 degrees
- Extremely steep terrain: in combination with unfavorable inclination (steeper than 40 degrees), type of terrain, vicinity to mountain ridges, roughness of terrain
** Additional load:
- low: a single skier / snowboarder / rider, riding gently without falling; snowshoe hikers; groups keeping enough distance (>10m)
- high: two or more skiers / snowboarder / riders without keeping enough distance; snow-grooming machine; blasting; single walkers / alpinists
More detailed information and descriptions in German are available at www.lawinen.org