Unusually warm winter weather across the Western United States and one of the worst snow droughts in decades has raised concerns about wildfire risk and water supply. The snowpack is below average for this time of year in nearly all Western states, with little time left to add snow cover and depth in the mountains before spring thaws begin. The period from October through February in Colorado was the warmest on record by a large margin, and Fort Collins nearly doubled its previous record for the number of 60-degree-Fahrenheit days in the winter, jumping from 22 days to 43 so far. The only parts of the West with near-normal snow levels are the southern Sierra Nevada, northwestern Wyoming, and small pockets of northern Montana, Idaho and Washington. The situation has implications for the Western water supply as snow from the mountains melts, which feeds rivers and creeks that provide water for agriculture and hydropropower dams.