A moving slurry of water, snow, and other debris.

Credit: Norwegian Geotechnical Institute

Slush Flows generally occur during rapid spring breakup in arctic and sub arctic regions as the snowpack becomes saturated with meltwater. Slush Flows are characterized by slow moving, destructive debris that flows from much gentler slope angles than other avalanche types. 

A slush flow originating from low-angle terrain. Credit: Norwegian Geotechnical Institute