Baseflow Forecasts

Streamflow forecasts for persistently dry conditions are available at many monitoring locations in the United States (sources: US Geological Survey; Washington Department of Ecology). The forecasts are generated by the Baseflow Separation (BFS) model (Konrad 2022), which simulates the recession of streamflow from recent values based on typical patterns of streamflow during monitoring periods 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).

Reference: Konrad, C.P., 2022, BFS—A non-linear, state-space model for baseflow separation and prediction: U.S. Geological Survey Scientific Investigations Report 2022–5114, 24 p., https://doi.org/10.3133/sir20225114.