Hélène Brogniez, LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, Pierre-Emmanuel Kirstetter, University of Oklahoma, School of Civil Engineering and Environmental Sciences and School of Meteorology, Norman, OK, United States and Christophe Dufour, CNRS & University Paris-Saclay, LATMOS, Guyancourt, France