These sections display only when recent bulletins exist. The official flood and bankfull stages were available, as well. These guidance forecasts may not reflect the official NWS forecasts or warnings shown at the top of the page. At sites where a rating curve exists, data are plotted in a flow linear format with the flow displayed in units of cubic feet per second on the left scale. A flow linear graph allows for easier visualization of impacts of additional rainfall and runoff to the curve.
Equivalent stage is shown on the right scale of the hydrograph.
The vertical datum is the reference above mean sea level of the zero stage. Therefore, the datum may be used to determine the observed and forecast stages above mean sea level by adding the datum to the stage. Summary lines at the bottom of the hydrograph show the latest stage and flow reading and time, the percent of flood flow, the maximum and minimum forecast, and observed stage and flow values. Below the hydrograph is a link to another hydrograph. The second hydrograph contains only observed data which is scaled differently to provide more detail.