Snowpack refers to the layer of snow that accumulates on the ground over the winter months. It forms when snow falls and builds up, creating a compact layer that can vary in depth and density. Snowpack is important for water resources, as it acts like a natural reservoir, slowly releasing water as it melts in the spring. The thickness and quality of snowpack can influence ecosystems, wildlife, and water supply for communities. Monitoring snowpack levels helps predict spring runoff and assess potential flooding risks. Understanding snowpack is essential for managing water resources and preparing for seasonal changes.