Streamflow forecasts for persistently dry conditions are available at many monitoring locations in the United States (sources: USGS; Washington Department of Ecology). The forecasts are generated by the Base Flow Separation (BFS) model, which simulates the recession of streamflow from a recently observed value based on patterns from avaiable streamflow records between 1981 and 2020. The forecast represents the reliable component of streamflow, or "baseflow", which may be generated by groundwater discharge, snow/ice melt, or outflow from lakes and reservoirs.
Select a major river basin to view a map with forecast locations, then select a point on the map for a forecast of streamflow at the location for a dry weather scenario (no rain, decreasing snowmelt). View map with all sites (be patient while it loads).