NWS river forecasts are based, to a great extent, on data from the U.S. Geological Survey stream-gaging stations.
The USGS operates most of its stream gages on a cooperative basis with other Federal, state, and local agencies
that fund individual gaging stations for agency-specific projects or regulatory needs. Reductions in stream-gaging
rogram funds, due to budget reductions for the USGS or for cooperating agencies, usually require that some stations be
For more information, see the USGS fact sheets, "Stream Gaging and Flood
Forecasting, a partnership of the U.S. Geological Survey and the National
Weather Service" and "Streamflow Information for the Nation.