The b.e.r.a
(bulletin d’estimation du risque d’avalanche - avalanche risk assessment bulletin)
What is it exactly?
It's a document that is produced every evening by Météo France for each mountain range. It assesses the risk of an avalanche based on the stability of the snow cover and the previous days' weather conditions.
The BERA contains 3 types of information:
- the type of risk: this is rated on a five-point scale
(1 = low risk, 5 = very high risk) and the types of possible avalanches (slab avalanche, wet snow etc.)
- the exact locations (altitude beyond which the risk increases, for example) and the slope orientation with the configurations where there is the greatest avalanche risk.
- observations about snow cover, this includes visible signs on the ground, conditions, quality and quantity of snow, etc.