Create a new CWMS Forecast. A CWMS Forecast is a simulation of watershed processes and consequences of flooding based on input data and information and hydrologic, reservoir operation, hydraulic, and impact analysis applications configured in CWMS. During a CWMS Forecast, a Forecast Run is run at a specific forecast time. (Recall that, a Forecast Run is a single forecast scenario defined by a specific set of data, information, and CAVI Alternatives.) CWMS copies all the necessary files to a dated forecast directory (CWMS Application Settings). You should check the data for errors and ensure that the data were extracted properly.
Compute the forecast and check results. Forecast results include flow and stage in the channel from watershed runoff, reservoir release schedules, floodplain inundation maps, floodplain consequence reports, and reports listing actions for emergency responders to take. These results inform water management decision making. You can view results tables and plots in the Modeling Module. Compute messages provide information about each step of the computation process. Model-specific reports provide details about the individual models. RAS Mapper allows you to view HEC-RAS inundation maps. If your models require adjustment, you can access Model Editors to edit your model Forecast Run and override controls. These features are discussed in Model Alternatives and Forecast Runs.
Manage forecast information. When you are satisfied with your model results, CWMS provides tools to assist you in managing information. You can post your forecast to the CWMS database, save modeling data, and protect your forecast from further editing.