We seek contributions from the research, operational and stakeholder or user communities on recent advances in science and practice of weather and climate analysis and prediction, hydrologic forecasting, and uncertainty-based approaches to support applications in water and watershed management. Water management concerns may include single or multi-sectoral efforts toward improving decisions regarding energy, flood or drought mitigation, agriculture, navigation and recreation, transboundary efforts or initiatives, and other resources management challenges. We welcome papers focusing on work across the spectrum of time (hourly to seasonal and interannual) and space scales (local to global), and presentations that highlight new theory, methods or findings from case studies.