1. NOAA/OAR/National Severe Storms Laboratory, Norman, Oklahoma
2. Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma, and NOAA/OAR/National Severe Storms Laboratory, and NOAA/NWS/NCEP/Storm Prediction Center, Norman, Oklahoma
3. NOAA/OAR/National Severe Storms Laboratory, and Cooperative Institute for Mesoscale Meteorological Studies, and School of Meteorology, University of Oklahoma, Norman, Oklahoma
4. Center for Analysis and Prediction of Storms, University of Oklahoma, Norman, Oklahoma