The Next Generation Water Observing System (NGWOS) program is designed to enhance water observations in basins representative of major hydrologic regions of the U.S. to better support water availability assessments, management, and prediction. NGWOS will do so by providing high-resolution, real-time data on water quantity, quality, and use, as well as advance the development and application of new sensor technologies and remote sensing methods. This presentation will provide an update on the planning and implementation of monitoring in the NGWOS basins including basin selection, monitoring implementation, and research and development priorities.