The U.S. Geological Survey (USGS) has a network of surface-water real-time monitoring stations in Tennessee. The network provides real-time water-stage data along with computed streamflow at many of these locations, and rainfall recorded at some stations. These sites continuously record data on 15-minute intervals and transmit the data via satellite to be incorporated into the USGS National Water Information System database. These data are automatically posted to the USGS Web site for public dissemination.