weak layers

Weak layers are specific zones within a snowpack or material structure that are less stable or more prone to failure. Think of them as internal "fault lines" where bonds between layers are weaker, making it easier for the layers above to slide or collapse under stress, such as additional weight or pressure. In snow, these weak layers can cause avalanches when the overlying snow shifts or breaks along these points. Recognizing weak layers is essential for assessing stability and preventing failures in natural or engineered systems.