Karl Rittger¹, Ross Palomaki¹, Noah P Molotch², Ann Windnagel³, Mark S Raleigh⁴, Edward Bair⁵, Mark C Serreze³, Logan Stephenson¹, Urs Bohn⁶, Chris Frans⁷, John Lhotak⁸, Dave Streubel⁹, William P Miller⁸, Cody Moser⁸, Jonathan P. Conway¹⁰, Patrick Kormos¹¹ and David Casson¹², (1)University of Colorado at Boulder, Institute for Arctic and Alpine Research, Boulder, United States, (2)University of Colorado at Boulder, Geography / INSTAAR, Boulder, United States, (3)University of Colorado at Boulder, CIRES, National Snow and Ice Data Center, Boulder, United States, (4)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (5)Leidos, Inc., Reston, United States, (6)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (7)Bureau of Reclamation, Denver, United States, (8)NOAA Colorado Basin River Forecast Center, National Weather Service, Salt Lake City, United States, (9)NOAA Alaska Pacific River Forecast Center, National Weather Service, Anchorage, United States, (10)Earth Sciences New Zealand, National Institute of Water and Atmospheric Research, Lauder, New Zealand, (11)NRCS, National Water and Climate Center, Salt Lake City, United States, (12)University of Calgary, Calgary, AB, Canada