How difficult or easy it is to encounter an avalanche problem across the terrain, and where in the terrain the problem is found.
Distribution is a measure of the spatial density of instabilities in the snowpack. It can also describe the pattern or location of avalanche problems throughout the terrain with regard to aspect, elevation, region, or types of terrain features. For example, a problem’s distribution could be specific to above treeline, leeward aspects, as shown in the photo above.
Widespread: The avalanche problem is easy to find.
Specific: The avalanche problem can be found in certain areas if you have a sense of where it exists.
Isolated: The avalanche problem is difficult to find.