LooseSnowLawinen

Loose snow avalanches, also known as point-release avalanches, are a type of avalanche that forms when a small amount of snow becomes unstable and breaks away from the slope. These avalanches typically start at a single point, often at the surface of a snowpack, and widen as they descend. They are generally smaller and less destructive than slab avalanches. Loose snow avalanches are common in the early stages of snowfall or when there is a significant temperature change, which can lead to instability within the snowpack. They tend to occur on steeper slopes and are more frequent in maritime snow climates. The motion of a loose snow avalanche is characterized by a fan-shaped starting zone and a tongue-shaped track. The debris from a loose snow avalanche is often deposited as a fan at the base of the slope. Identifying the conditions that lead to loose snow avalanches is important for backcountry travelers. Factors such as recent snowfall, warming temperatures, and wind loading can contribute to their formation. While generally less dangerous than slab avalanches, loose snow avalanches can still pose a risk, particularly to individuals caught in their path or if they entrain larger amounts of snow or debris.