1. Center for Western Weather and Water Extremes, Scripps Institution of OceanographyUniversity of California, San Diego La Jolla CA USA
2. Jet Propulsion LaboratoryCalifornia Institute of Technology Pasadena CA USA
3. Joint Institute for Regional Earth System Science and EngineeringUniversity of California Los Angeles CA USA
4. University of Colorado Boulder Boulder CO USA
5. European Centre for Medium‐Range Weather Forecasts Reading UK
6. Environment and Climate Change Canada Montreal, Québec Canada
7. Climate Prediction CenterNCEP/NWS/NOAA College Park MD USA