The green line on the plot represents the approximate range limit of the water level sensor. Data points below the green line are readings which the unit reported as an Error condition. They are plotted below the out of range line but the reason for the error is currently being investigated. This may cause the plot to appear erratic . The reported river level is referenced to the NAVD88 datum.
Approximately 3 days of data are displayed. Currently, website data display is updated every 30 minutes at 05 and 35 minutes past the hour. When water levels rise enough to show sufficient activity additional updates will be done at 20 and 50 minutes past the hour. This will update website display to correspond to river gauge data updates every 15 minutes.