Snow drought in western U.S. mountains: proximate causes, regional differences, and implications for streamflow and forests

Adrian Adam Harpold, University of Nevada Reno, Department of Natural Resources and Environmental Science, Reno, NV, United States, Michael D Dettinger, Scripps Institution of Oceanography, University of California San Diego, Center for Western Weather and Water Extremes (CW3E), La Jolla, United States and Seshadri Rajagopal, Desert Research Institute, Reno, NV, United States