USGS Streamstats Support

On October 14, 2016, new peak-flow regression equations were made available in StreamStats for the Panhandle region of western Oklahoma. The new equations, which are applicable to streams that are not substantially affected byregulation, impoundment, or surface-water withdrawals, are from the following report, which users should review and understand before attempting to obtain peak-flow statistics for this area:

• Smith, S.J., Lewis, J.M., and Graves, G.M., 2015, Methods for estimating the magnitude and frequency of peak streamflows at ungaged sites in and near the Oklahoma Panhandle: U.S. Geological Survey Scientific Investigations Report 2015–5134, 35 p.