# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-19 00:28:36 EDT # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 06467500 MISSOURI RIVER AT YANKTON, SD # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 06467500 1881-04-05 50.50 1,3 USGS 06467500 1931-06-15 46500 27.22 3 USGS 06467500 1932-06-18 124000 29.68 2,3 1932-03-22 34.80 1 USGS 06467500 1933-05-29 111000 28.21 2,3 1933-06-28 28.64 1 USGS 06467500 1934-03-03 112000 30.30 1,3 USGS 06467500 1935-07-16 130000 28.90 3 USGS 06467500 1936-04-18 102000 27.60 2,3 1936-03-21 27.85 1 USGS 06467500 1937-06-22 112000 29.60 3 USGS 06467500 1938-03-24 146000 29.20 2,3 1938-07-12 30.15 1 USGS 06467500 1939-04-01 176000 30.10 3 USGS 06467500 1940-06-15 50800 27.42 3 USGS 06467500 1941-06-14 137000 30.29 3 USGS 06467500 1942-05-15 126000 30.20 3 USGS 06467500 1943-04-08 282000 33.60 3 USGS 06467500 1944-04-09 173000 30.82 3 USGS 06467500 1945-03-22 98300 27.63 2,3 1945-03-12 28.20 1 USGS 06467500 1946-06-22 87300 28.57 3 USGS 06467500 1947-04-03 176000 31.00 3 USGS 06467500 1948-03-26 110000 28.60 2,3 1948-03-21 29.05 1 USGS 06467500 1949-04-07 173000 30.50 2,3 1949-04-10 30.55 1 USGS 06467500 1950-04-24 237000 31.60 3 USGS 06467500 1951-04-07 134000 28.43 3 USGS 06467500 1952-04-13 480000 35.50 3 USGS 06467500 1953-06-25 112000 6 28.59 3 USGS 06467500 1954-06-07 38600 6 24.79 3 USGS 06467500 1955-08-25 38500 6 24.85 2,3 1955-03-11 25.61 1 USGS 06467500 1956-08-24 47000 6 25.05 3 USGS 06467500 1956-10-02 38600 6 24.45 2,3 1956-10-10 24.62 1 USGS 06467500 1957-10-07 35300 6 24.06 2,3 1957-10-03 24.07 1 USGS 06467500 1959-08-28 33900 6 23.56 2,3 1958-10-07 23.59 1 USGS 06467500 1960-03-29 34700 6 23.59 3 USGS 06467500 1961-07-06 31800 6 22.99 2,3 1960-11-02 23.00 1 USGS 06467500 1962-07-04 35900 6 23.33 3 USGS 06467500 1963-07-25 33800 6 22.80 3 USGS 06467500 1964-08-06 34400 6 22.46 2,3 1964-08-12 22.52 1 USGS 06467500 1965-08-14 35000 6 22.66 3 USGS 06467500 1966-07-21 35800 6 22.68 3 USGS 06467500 1967-08-23 39600 6 22.76 3 USGS 06467500 1968-07-16 41200 6 22.81 USGS 06467500 1969-08-30 56000 6 24.08 2 1969-09-10 24.12 1 USGS 06467500 1969-10-01 51200 6 23.62 USGS 06467500 1971-06-17 57200 6 23.62 USGS 06467500 1972-08-17 61400 6 23.39 USGS 06467500 1972-10-01 52600 6 22.57 USGS 06467500 1974-07-24 38000 6 20.30 USGS 06467500 1975-09-11 64300 6 23.24 USGS 06467500 1975-11-05 63700 6 23.07 2 1975-10-06 23.17 USGS 06467500 1976-12-02 42000 6 19.99 2 1976-10-01 20.22 USGS 06467500 1978-08-08 53900 6 21.21 2 1978-09-14 21.26 USGS 06467500 1978-10-12 53700 6 21.29 USGS 06467500 1979-11-30 41600 6 19.14 USGS 06467500 1980-11-12 38700 6 18.75 USGS 06467500 1982-09-28 33800 6 17.67 2 1982-01-23 19.48 1 USGS 06467500 1982-12-01 45100 6 18.78 USGS 06467500 1984-07-28 48200 6 19.15 2 1983-12-25 20.30 1 USGS 06467500 1984-10-25 48000 6 18.93 USGS 06467500 1986-08-26 44100 6 18.25 USGS 06467500 1986-10-21 50500 6 18.73 USGS 06467500 1988-08-31 39700 6 17.24 2 1988-02-06 18.20 1 USGS 06467500 1988-11-02 35400 6 16.82 USGS 06467500 1990-09-18 33800 6 16.10 2 1989-12-22 16.36 1 USGS 06467500 1991-09-03 32400 6 16.03 2 1990-12-24 16.42 1 USGS 06467500 1992-05-15 30100 6 15.67 USGS 06467500 1992-10-09 28500 6 15.35 USGS 06467500 1994-09-04 32800 6 15.49 2 1994-01-18 17.03 1 USGS 06467500 1995-08-21 59600 6 18.61