# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-04-04 05:06:04 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 06185500 Missouri River near Culbertson 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 06185500 1942-08-30 14800 5 9.46 USGS 06185500 1943-03-26 78200 5 15.12 1 USGS 06185500 1943-10-09 21000 5 1944-01-16 11.22 USGS 06185500 1944-10-15 19900 5 1945-01-11 12.08 USGS 06185500 1946-08-25 20400 5 10.78 USGS 06185500 1947-08-14 30400 5 1947-03-28 14.83 USGS 06185500 1948-09-17 29300 5 1948-04-13 12.26 USGS 06185500 1948-10-15 30700 5 1948-10-01 11.35 USGS 06185500 1950-04-17 23000 1,5 12.44 1 USGS 06185500 1951-04-09 34500 5 1951-03-28 15.10 USGS 06185500 1959-03-25 21500 1,5 1959-03-27 14.23 USGS 06185500 1960-03-23 55000 2,5 19.14 USGS 06185500 1961-09-30 15000 5 1960-12-28 11.43 USGS 06185500 1962-07-20 16700 5 1962-04-09 13.32 USGS 06185500 1963-02-09 16000 2,5 13.05 USGS 06185500 1964-05-09 15000 5 8.72 2 1963-12-26 10.45 1 USGS 06185500 1965-05-09 23800 5 10.75 2 1965-04-15 12.23 1 USGS 06185500 1966-07-04 21000 5 9.77 2 1966-03-28 12.67 1 USGS 06185500 1967-04-12 25600 5 9.74 2 1967-03-03 13.62 1 USGS 06185500 1968-03-08 20000 2,5 1967-12-01 17.55 1 USGS 06185500 1969-04-06 40000 1,5 1969-03-24 13.20 1 USGS 06185500 1970-06-22 19800 5 9.82 2 1970-01-28 12.22 1 USGS 06185500 1971-04-12 22300 5 10.15 2 1971-03-15 13.60 1 USGS 06185500 1972-03-20 35000 5 1972-03-18 18.30 1 USGS 06185500 1973-03-12 19000 5 1973-03-12 1200 12.60 1 USGS 06185500 1974-04-02 22000 5 1974-04-03 11.83 1 USGS 06185500 1975-07-13 39600 5 12.89 USGS 06185500 1976-06-14 32900 1,5 1976-03-22 16.98 1 USGS 06185500 1977-02-10 16600 1,5 1976-12-02 12.76 1 USGS 06185500 1978-03-30 27000 1,5 1978-03-30 1200 14.98 1 USGS 06185500 1979-04-18 52000 1,5 1979-04-14 19.66 1 USGS 06185500 1980-02-07 14700 1,5 1979-12-21 12.23 1 USGS 06185500 1981-07-16 16600 5 8.45 2 1980-12-15 11.50 1 USGS 06185500 1982-04-16 34000 5 10.17 2 1982-04-01 14.99 1 USGS 06185500 1983-02-18 15000 1,5 1983-02-19 11.34 1 USGS 06185500 1984-02-12 15000 1,5 1984-01-02 5.73 USGS 06185500 1985-01-17 15000 1,5 USGS 06185500 1986-03-10 22000 1,5 1986-03-12 14.52 1 USGS 06185500 1987-08-01 17300 5 8.22 2 1987-03-05 10.10 1 USGS 06185500 1988-03-01 12800 1,5 USGS 06185500 1989-04-06 14100 5 7.12 2 1989-04-14 12.10 1 USGS 06185500 1990-01-28 14000 1,5 1989-12-29 10.28 1 USGS 06185500 1991-07-02 16500 5 8.13 2 1990-12-27 9.70 1 USGS 06185500 1992-04-21 9720 5 5.87 2 1991-12-08 9.16 1 USGS 06185500 1993-07-24 16700 5 8.19 2 1993-01-07 11.09 1 USGS 06185500 1994-03-23 15300 5 7.17 2 1994-03-07 11.72 1 USGS 06185500 1995-09-06 14300 5 7.48 2 1994-12-03 10.43 1 USGS 06185500 1996-04-26 17700 5 8.20 2 1996-02-12 11.85 1 USGS 06185500 1997-04-03 26900 5 8.59 2 1997-03-31 17.52 1 USGS 06185500 1997-11-10 22700 1,5 1998-03-01 12.10 1 USGS 06185500 1999-03-22 23400 5 9.55 2 1999-01-18 10.72 1 USGS 06185500 2000-07-12 14200 5 6.86 2 2000-01-11 13.92 1 USGS 06185500 2001-01-28 12200 1,2,5 10.26 1 USGS 06185500 2002-08-26 12000 5 6.23 USGS 06185500 2003-05-14 12000 5 6.32 2 2002-12-30 10.37 1 USGS 06185500 2004-05-29 16000 5 7.65 USGS 06185500 2005-06-14 10000 5 5.79 2 2004-12-28 7.19 1 USGS 06185500 2006-06-17 9620 5 5.37 2 2005-12-13 7.79 1 USGS 06185500 2007-06-06 12000 5 6.44 2 2007-02-24 8.96 1 USGS 06185500 2008-06-20 9710 5 5.41 2 2008-03-26 7.14 1 USGS 06185500 2009-04-10 8620 5 6.94 2 2008-12-13 8.32 1 USGS 06185500 2010-05-31 14700 5 7.30 USGS 06185500 2011-06-16 104000 5 17.50 USGS 06185500 2011-10-01 18000 5 6.64 2 2012-01-26 9.64 1 USGS 06185500 2013-06-08 19500 5 7.52 2 2013-04-06 10.65 1 USGS 06185500 2014-08-30 18100 5 7.34 2 2014-03-20 9.21 1 USGS 06185500 2015-03-18 14000 1,2,5 10.70 1 USGS 06185500 2016-05-16 15400 5 6.59 2 2016-01-15 7.48 1 USGS 06185500 2017-03-20 23500 2,5 2017-03-21 12.06 1 USGS 06185500 2018-05-04 15:00 24600 5 8.86 2 2018-01-11 0430 8.98 1 USGS 06185500 2019-03-29 14:00 37700 2,5 13.79 1,2 2019-03-30 1415 15.26 1 USGS 06185500 2020-04-03 02:45 21500 5 7.98 2 2019-12-19 0030 12.80 1 USGS 06185500 2020-12-26 14:00 11400 5 4.73 2 2021-02-02 0900 9.82 1 USGS 06185500 2022-01-24 11:15 10100 2,5 7.61 1,2 2021-12-25 1915 8.39 1 USGS 06185500 2023-04-14 09:30 24200 5 8.48 2 2023-04-13 0900 11.95 1 USGS 06185500 2024-06-27 20:45 20000 5 7.72