Madeleine K Youngs, University of Maryland College Park, Atmospheric and Oceanic Science, College Park, United States, Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States, Yidongfang Si, Peking University, Department of Atmospheric and Oceanic Sciences, School of Physics, Beijing, China, Andrew F Thompson, CALTECH California Institute of Technology, Pasadena, United States and Michael Schodlok, University of California Los Angeles, Los Angeles, United States