Scientists Say: Avalanche
An avalanche occurs when snow or other material quickly sweeps downhill
![snow slides down a mountainside in an avalanche](https://www.snexplores.org/wp-content/uploads/2021/11/1440_SS_avalanche_feat-1030x580.jpg)
An avalanche can bring a huge amount of snow down the side of a mountain in a very short time.
DOUGBERRY/E+/Getty Images
An avalanche occurs when snow or other material quickly sweeps downhill
An avalanche can bring a huge amount of snow down the side of a mountain in a very short time.
DOUGBERRY/E+/Getty Images