Streamflow-duration plots, which depict the flow-duration curves of daily-streamflow data grouped by months, are now available for streamflow gages in Virginia. Flow-duration plots are used to place current streamflow conditions in context of historic flow-conditions. Combined with other information such as ground-water levels, precipitation, and soil moisture, flow-duration plots can help local government agencies and water-resource managers assess regional drought conditions.

Currently available plots include statistics of daily streamflow data and the current daily streamflow data. Additional plots based on 7-day, 14-day, and 28-day running averages of the streamflow data are planned.

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