1. Cooperative Institute for Severe and High-Impact Weather Research and Operations, University of Oklahoma NOAA/OAR/National Severe Storms Laboratory, Norman, Oklahoma RAND Corporation, Santa Monica, CA
2. Cooperative Institute for Severe and High-Impact Weather Research and Operations, University of Oklahoma NOAA/OAR/National Severe Storms Laboratory, Norman, Oklahoma
3. NOAA/OAR/National Severe Storms Laboratory, Norman, Oklahoma
4. NOAA/NCEP/Weather Prediction Center
5. NOAA/NCEP/Weather Prediction Center Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder