How avalanches are formed.

An avalanche is formed by a really big snow storm or snow bracking off the side of a mountain. Another way avalanches are formed is by loose snow falling from the sky and layering which means the snow gets heavier and more unstable.

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Types of avalanches

There are three common types of avalanches. The most deadly avalanche is called a wet slab. There are too main avalanches which are  called surface and full - depth. One type of avalanche is called a dry snow avalanche and another avalanche is called a wet snow. The difference between a wet snow avalanche and a dry snow one is that a dry snow avalanche completely lifts of the ground, but the wet snow does not lift off the ground. The difference between a full - depth and a surface avalanche is that a surface avalanches slide down smoothly and a full - depth ones are more rough so they catch on the rocks.

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