Avalanches range from tiny loose snow sloughs (pronounced sluffs) up to monstrous walls of snow like a tsunami. Generally the bigger they are, the greater the destruction will be. We rate avalanche size using this scale:
NOTE: Small slides can be enough to cause injury/death if you find yourself in an exposed place like a steep walled gully, ice couloir, or above a cliff. (Terrain traps – more on this later)
Watch the following videos, and think about how big they are according to the scale above. Imagine your house filing up 1m deep in snow. Would it cover the area of a bedroom? A whole ground floor? The ground floor of 10 houses? 2 rugby fields? or more?