Where do avalanches happen most often?
Avalanches usually occur in areas where the degree of the slope is more than 30 degrees. There are also other factors. One key factor is warm days paired with cool nights. This causes snow to melt and then refreeze, creating many different layers. This creates a zone in which avalanches are highly likely, and only need something to set them off, or a “trigger”. This will cause the top layer or so to shear off, and bam! avalanche. It is highly unlikely that an avalanche will occur within a ski area, as the slopes are usually way less than 30 degrees, as well as bombing performed on areas where avalanche danger is high. Bombing is exactly what it sounds like: a cannon shoots small bombs towards a slope in order to act as a trigger. Once the slope has slid, the odds of another avalanche are highly unlikely.
