European Avalanche Danger Scale
Be aware of avalanche danger in the mountain. Below you can study the European Avalanche Danger Scale.
||Avalanche triggering probability|
|The snowpack is generally well bonded and stable
||Triggering is generally possible only with high additional loads** on few locations in steep extreme terrain. Only natural sluffs and small avalanches are possible.|
|The snowpack is only moderate well bonded on some steep slopes*, otherwise it is generally well bonded.
||Triggering is possible, particulary through high additional loads**, mainly on steep slopes indicated in the bulletin. Large natural avalanches are not expected.|
|The snowpack is moderately to weakly binded on many steep slopes*.
||Triggering is possible, even through low additional loads** mainly on steep slopes indicated in the bulletin. In certain conditions, some medium and occasionally large natural avalanches are possible.|
|The snowpack is weakly bonded on most steep slopes*.
||Triggering is probable even through low additional loads** on many steep slopes. In certain conditions, many medium and multiple large natural avalanches are expected.|
|The snowpack is generally weakly bonded and largely unstable.
||Many large natural avalanches are expected, even in moderately steep terrain.|
* genreally explained in greater detail in Avalanche Bulletin (e.g. altitude zone, aspect, type of terrain).
→ moderately steep terrain: slopes flatter than about 30 degrees
→ steep slopes: slopes with an angle of more than abouut 30 degrees
→ extreme slopes: those which are particulary unfavourable as regards slope angle (usually steeper that about 40 degrees), terrain profile, proximity to ridge, roughness of underlying ground.
→ high (e.g. group of skiers without spacing, snowmobile/ groomer, avalanche blasting)
→ low (e.g. single skier, snowboarder, snowshoe hiker)
Natural: without human assistance
- aspect: the compass direction in which a downward slope faces
- exposed: especially exposed to danger
Prepared by NGI - based on the European Avalanche Danger Scale.