1. a Department of Atmospheric Sciences, University of Illinois Urbana–Champaign, Urbana, Illinois
2. b Department of Atmospheric Sciences, University of Wyoming, Laramie, Wyoming
3. c Research Applications Laboratory, National Center for Atmospheric Research, Boulder, Colorado
4. d Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, Colorado
5. e Department of Resource Planning and Operations, Idaho Power Company, Boise, Idaho