Hazard Ratings
Hazard Ratings: Levels 1 to 5
- 1/5 - Low
-
- Stability:
- The snowpack is generally well bonded and stable.
- Activity:
- Triggering is possible only with high additional loads[2] on a few very steep extreme slopes[4]. Only a few small natural[6] avalanches (sluffs) possible.
- 2/5 - Moderate
-
- Stability:
- The snowpack is moderately well bonded on some[1] steep[3] slopes, otherwise generally well bonded.
- Activity:
- Triggering is possible with high additional loads[2], particularly on the steep[3] slopes indicated in the bulletin. Large natural[6] avalanches not likely.
- 3/5 - Considerable
-
- Stability:
- The snowpack is moderately to weakly bonded on many[1] steep[3] slopes.
- Activity:
- Triggering is possible, sometimes even with low additional loads[2]. The bulletin may indicate many slopes which are particularly affected. In certain conditions, medium and occasionally large sized natural[6] avalanches may occur.
- 4/5 - High
-
- Stability:
- The snowpack is weakly bonded in most[1] places.
- Activity:
- Triggering is probable even with low additional loads[2] on many steep[3] slopes. In some conditions, frequent medium or large sized natural[6] avalanches are likely.
- 5/5 - Very High
-
- Stability:
- The snowpack is generally weakly bonded and largely unstable.
- Activity:
- Numerous large natural[6] avalanches are likely, even on moderately steep terrain. Extensive safety measures (closures and evacuation) are necessary. No off-piste or back country skiing or travel should be undertaken.
- Generally described in more detail in the avalanche bulletin (e.g.altitude, slope aspect, type of terrain, etc.).
- High - e.g. group of skiers, pistemachine, avalanche blasting.
low - e.g. skier, walker.
- slopes with an incline of more than 30 degrees.
- those which are particularly unfavourable in terms of the incline, terrain profile, proximity to ridge,smoothness of underlying ground surface.
- compass bearing directly down the slope.
- Without human assistance
< back
