1. NOAA/NWS/NCEP/Storm Prediction Center, and School of Meteorology, University of Oklahoma, Norman, Oklahoma
2. NOAA/NWS/NCEP/Storm Prediction Center, Norman, Oklahoma
3. School of Meteorology, University of Oklahoma, Norman, Oklahoma
4. NOAA/NWS/Weather Forecast Office, Tulsa, Oklahoma
5. NOAA/National Severe Storms Laboratory, Norman, Oklahoma
6. NiSource, Inc., Columbus, Ohio