1. 1 Advanced Radar Research Center and School of Civil Engineering and Environmental Sciences, University of Oklahoma, Norman, Oklahoma, USA
2. 2 School of Meteorology, University of Oklahoma, Norman, OK 73072, USA
3. 3 School of Civil Engineering and Environmental Science, University of Oklahoma, Norman, OK 73072, USA
4. 4 NOAA/National Severe Storms Laboratory, Norman OK 73072, USA