# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-13 00:57:35 EST # # ---------------------------------- 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 06177000 Missouri River near Wolf Point MT # # 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 06177000 1929-06-04 26900 USGS 06177000 1930-04-20 21000 USGS 06177000 1931-03-23 14000 1 8.40 1 USGS 06177000 1932-05-23 41000 1 14.82 USGS 06177000 1933-06-10 29800 1933-03-25 12.30 USGS 06177000 1934-06-15 32300 11.30 USGS 06177000 1935-06-20 21500 9.65 USGS 06177000 1936-03-11 31300 14.64 1 USGS 06177000 1937-06-14 23900 5 10.44 USGS 06177000 1938-03-19 36000 2,5 1938-03-12 13.00 USGS 06177000 1939-03-25 66800 2,5 14.40 1 USGS 06177000 1940-08-24 17200 5 9.06 USGS 06177000 1941-08-10 15400 5 1941-03-30 9.46 USGS 06177000 1942-08-28 15100 5 8.42 USGS 06177000 1943-03-30 38600 5 1943-03-29 14.25 USGS 06177000 1943-10-06 21500 5 9.77 USGS 06177000 1944-10-13 22200 5 1945-01-04 11.81 USGS 06177000 1946-08-24 20700 5 9.81 USGS 06177000 1947-08-13 27200 5 1947-04-02 10.81 USGS 06177000 1948-08-09 28600 5 10.77 USGS 06177000 1948-10-14 29100 5 1948-10-01 10.24 USGS 06177000 1950-09-06 22100 5 1950-04-16 10.71 USGS 06177000 1951-09-30 29100 5 1951-04-07 10.90 USGS 06177000 1952-04-19 46800 5 1952-04-07 14.91 USGS 06177000 1953-09-28 28100 5 9.75 USGS 06177000 1954-08-31 33700 5 10.00 USGS 06177000 1955-09-20 30500 5 9.94 USGS 06177000 1955-10-19 31500 5 9.22 USGS 06177000 1957-03-29 13000 5 1957-03-26 6.87 USGS 06177000 1958-04-09 9910 5 1958-02-18 5.53 USGS 06177000 1959-03-26 23000 5 11.76 USGS 06177000 1960-03-28 30000 5 1960-03-27 15.64 USGS 06177000 1961-09-30 15600 5 1960-12-24 8.73 USGS 06177000 1961-10-03 15500 5 1962-01-12 9.64 USGS 06177000 1963-02-06 15000 5 9.57 USGS 06177000 1964-05-07 14900 5 6.54 2 1963-12-24 8.90 1 USGS 06177000 1965-05-10 22500 5 8.22 2 1965-03-20 9.79 1 USGS 06177000 1966-03-27 18200 5 7.07 2 1966-02-04 10.06 1 USGS 06177000 1967-04-19 20300 5 7.65 2 1967-01-15 11.25 1 USGS 06177000 1968-03-06 17000 2,5 10.46 USGS 06177000 1969-04-16 21600 2,5 7.98 2 1968-12-23 10.51 1 USGS 06177000 1970-05-17 19700 2,5 7.57 2 1970-01-25 10.01 1 USGS 06177000 1971-04-10 20800 5 7.50 2 1971-02-03 10.85 1 USGS 06177000 1972-06-12 20100 5 7.67 2 1972-03-15 10.80 1 USGS 06177000 1973-03-02 16000 5 1972-12-22 9.41 1 USGS 06177000 1974-06-24 17000 5 6.67 2 1973-12-22 9.96 1 USGS 06177000 1975-07-12 38800 5 10.91 USGS 06177000 1976-06-13 29900 5 9.29 2 1976-03-07 11.88 1 USGS 06177000 1977-02-17 20000 1,5,R 1977-01-23 10.61 1 USGS 06177000 1978-04-13 22400 5 7.57 2 1977-12-14 8.77 1 USGS 06177000 1979-04-26 34900 5 9.01 2 1978-12-21 12.98 1 USGS 06177000 1980-02-17 16000 1,5 1980-02-29 8.53 1 USGS 06177000 1981-07-15 15300 1,5 USGS 06177000 1982-06-05 21800 5 USGS 06177000 1983-02-17 14400 1,5 1983-01-18 12.22 1 USGS 06177000 1984-06-21 14600 5 1983-12-17 10.17 1 USGS 06177000 1985-05-31 16500 5 5.35 1,2 1985-01-16 9.31 1 USGS 06177000 1986-03-10 21900 5 6.90 2 1986-02-27 10.87 1 USGS 06177000 1986-10-10 17300 5 5.59 2 1987-01-01 10.06 1 USGS 06177000 1987-12-24 12400 5 4.12 2 USGS 06177000 1989-04-02 13900 5 4.91 2 1989-01-05 9.10 1 USGS 06177000 1990-01-25 13500 1,5 1989-12-17 10.29 1 USGS 06177000 1991-07-01 11900 5 3.94 2 1991-03-03 7.39 1 USGS 06177000 1992-04-19 9360 5 3.10 2 1991-12-27 9.38 1 USGS 06177000 1993-07-28 12800 5 4.23 2 1993-03-12 8.21 1 USGS 06177000 1994-03-22 13400 5 4.62 2 1994-03-20 9.92 1 USGS 06177000 1995-09-13 14200 5 5.01 2 1995-01-11 9.40 1 USGS 06177000 1996-04-25 16800 1,2,5 1996-02-27 11.32 USGS 06177000 1997-09-29 22000 5 6.92 2 1997-03-20 9.25 1 USGS 06177000 1997-11-09 24500 5 7.27 USGS 06177000 1999-03-30 16500 1,2,5 USGS 06177000 2000-07-09 13400 5 4.04 2 2000-01-18 9.54 1 USGS 06177000 2001-01-16 12100 1,2,5 2001-01-06 8.87 1 USGS 06177000 2002-08-24 11800 5 2001-12-26 7.42 USGS 06177000 2003-05-18 11500 5 4.41 2 2003-01-29 9.00 1 USGS 06177000 2004-03-27 15600 5 5.77 2 2004-01-10 8.31 1 USGS 06177000 2005-06-12 9630 5 3.72 2 2005-01-08 6.83 1 USGS 06177000 2006-06-15 9630 5 3.72 2 2006-01-24 9.46 1 USGS 06177000 2007-06-04 11900 5 3.72 2 2006-12-06 7.41 1 USGS 06177000 2008-06-18 10200 5 3.79 2 2008-03-13 5.27 1 USGS 06177000 2009-05-05 8250 5 2.82 2 2008-12-18 5.36 1 USGS 06177000 2010-05-29 14200 5 5.19 USGS 06177000 2011-06-14 93200 5 14.77 USGS 06177000 2012-09-09 17500 5 14.77 6 USGS 06177000 2013-06-14 17800 5 14.94 2 2012-12-30 20.44 1 USGS 06177000 2014-08-28 19600 5 15.42 2 2014-03-19 16.53 1 USGS 06177000 2015-03-17 12300 5 13.15 2 2015-01-02 16.44 1 USGS 06177000 2016-05-14 16100 5 14.49 2 2016-01-13 16.36 1 USGS 06177000 2016-10-13 20:00 14500 5 13.96 2 2017-03-18 1000 16.95 1 USGS 06177000 2018-05-02 01:15 26200 5 17.06 2 2018-01-09 0115 17.35 1 USGS 06177000 2019-03-29 13:15 33800 2,5 22.53 1,2 2019-03-29 1745 23.70 1 USGS 06177000 2019-10-01 11:15 19300 5 15.31 2 2020-02-15 0600 20.09 1 USGS 06177000 2021-01-05 17:30 11600 5 12.56 2 2021-01-30 1630 18.42 1 USGS 06177000 2022-01-20 20:00 10300 2,5 16.17 2 2021-12-25 1715 18.16 1 USGS 06177000 2023-04-19 23:15 22000 2,5 16.15 5