Jennifer E Kay, Univeristy of Colorado at Boulder, Boulder, CO, United States, Eleanor Middlemas, University of Colorado, CIRES, Boulder, United States, Jason Chalmers, University of Colorado Boulder, Boulder, CO, United States, Elizabeth Maroon, National Center for Atmospheric Research, Boulder, CO, United States and Brian Medeiros, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States