Peak-flow frequency analyses for 14 selected streamgages in the Ruby, Jefferson, and Madison River Basins, Montana, based on data through water year 2016

The USGS Wyoming-Montana Water Science Center (WYMT WSC) recently completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WYMT WSC. In association with the report, this data release presents peak-flow frequency analyses for 14 selected streamgages in the Ruby, Jefferson, and Madison River Basins that were based on methods described by Sando and McCarthy (2018). The results are presented in three child items: a child item containing the results excel spreadsheet, a child item containing the peak flow specification file, and a child item containing the WATSTORE file.