This map layer shows the distribution of realtime streamgaging stations in the United States. When you identify a station, you will see a link to the current streamflow for that station. Computers in the district office convert the depth reading to a value for flow and plot a graph of flow vs time, usually showing the previous 7 days.
Some stations also transmit values for temperature, conductance, or other parameters.
Real-time hydrologic data are considered provisional data . Please be aware of the limitations this imposes. The map of realtime stations usually is regenerated every business day. Sometimes, states will be missing from the map. If too many states are unavailable, the map will not be regenerated.