なだれ雪崩nadare
1.

A natural event characterized by a rapid and forceful descent of accumulated snow from a mountainside or sloped terrain, often triggered by instability in the underlying layers.

2.

A large mass of snow that collapses and rushes down a slope, potentially causing destruction and posing risks to anything in its path.

3.

A phenomenon specific to winter conditions where the weight of snow becomes too great for the underlying support, leading to a cascading failure and a sudden release of the snowpack.

Example:

で道路がふさがった。