Avalanche Danger Bulletin (BPA)
Estimation of avalanche danger in catalan PyreneesLegend of the Avalanche Bulletin with Icons
Danger level
(according to the European Avalanche Danger Scale)
Very high
High
Considerable
Moderate
Low
Snowpack distribution
Snowpack levels for northern and southern orientation.
- White shape: with continuous snowpack
- Continuous line: continuous snowpack level
- Light grey shape: with discontinuous snowpack
- Dashed line: discontinuous snowpack level
- Dark grey shape: without snowpack
Avalanche type and size
Avalanche type and size:
S: small; M: medium; L: large.
Wet snow avalanche
Slab avalanche
Loose snow avalanche
Loose snow avalanche
and slab avalanche
Avalanche danger by aspect and height
In red color orientation and heights prone to avalanches.
Example: Avalanche danger in north, northeast, east and southeast aspects and in all heights.
Additional load (needed to trigger loose snow avalanches and slab avalanches)
Spontaneous
release
Low additional
load
Large additional
load
Time prone to avalanches
In red color day time prone to wet snow avalanches
Example: probable wet snow avalanches from 10 to 21 h.
Triggering likelihood
Tendency for the next 48h
