1. Center for Western Weather and Water Extremes, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California;
2. National Institute of Water and Atmospheric Research, Wellington, New Zealand;
3. Department of Hydrology and Atmospheric Sciences, The University of Arizona, Tucson, Arizona;
4. School of Natural Resources and the Environment, The University of Arizona, Tucson, Arizona;
5. Department of Geography and Regional Science, University of Graz, Graz, Austria;
6. International Research Institute for Climate and Society, Columbia University, Palisades, New York;
7. Division of Climate, Atmospheric Sciences, and Physical Oceanography, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California;
8. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California;
9. Climate Prediction Center, NOAA/NWS/NCEP, College Park, Maryland;
10. California Department of Water Resources, Sacramento, California