National Water Model

Emergency managers, reservoir operators, and other decision makers can consult the supercomputer-powered National Water Model for detailed forecasts of soil moisture, surface runoff, snow water equivalent, and other parameters.

The National Water Model (NWM) uses data from more than 8,000 U.S. Geological Survey gauges to simulate conditions for 2.7 million locations in the contiguous United States. The model generates hourly forecasts for the entire river network including high-resolution forecasts of soil moisture, surface runoff, snow water equivalent, and other parameters.