Today, many predict coastal zone weather including alerts to potential flooding. This session will offer papers that predict the occurrences and impacts of weather via next-generation, science-based flood forecasting and robust decision support services to communicate the information. The ultimate goal is to evolve water modeling, and forecasting, to motivate improved water information research and development. Important research questions include what kinds of (and in which formats) information are needed by community, state, and regional decision-makers. This session will reveal the required comprehensive observational and numerical modeling and communication strategies necessary for timely, detailed, and accurate warnings of where, when, and how much flooding will occur in coastal watersheds to forewarn emergency managers and public authorities and the public.