# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-17 22:53:28 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 06090300 Missouri River near Great Falls 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 06090300 1952-05-04 1290 5 4.58 USGS 06090300 1953-06-04 66600 5 USGS 06090300 1954-06-05 1460 5 4.88 USGS 06090300 1955-06-17 1270 5 4.61 USGS 06090300 1956-05-28 565 5 3.41 USGS 06090300 1957-06-11 18700 1,5 USGS 06090300 1958-06-14 19700 1,5 USGS 06090300 1959-06-19 24600 1,5 USGS 06090300 1960-05-18 18100 1,5 USGS 06090300 1961-02-02 8290 1,5 USGS 06090300 1962-06-20 21100 1,5 USGS 06090300 1963-06-09 19000 1,5 USGS 06090300 1964-06-10 72000 1,5 USGS 06090300 1965-06-19 24800 1,5 USGS 06090300 1965-10-06 13000 1,5 USGS 06090300 1967-06-19 33100 1,5 USGS 06090300 1968-06-12 19700 1,5 USGS 06090300 1969-06-29 23900 1,5 USGS 06090300 1970-06-15 23500 1,5 USGS 06090300 1971-05-14 26400 1,5 USGS 06090300 1972-06-03 23200 5 USGS 06090300 1972-10-12 8860 5 USGS 06090300 1974-06-22 28400 1,5 USGS 06090300 1975-06-21 60200 1,5 USGS 06090300 1976-05-16 31000 1,5 USGS 06090300 1976-10-18 8830 1,5 USGS 06090300 1978-05-20 23700 5 7.06 USGS 06090300 1979-05-26 22700 5 6.99 USGS 06090300 1980-06-17 28300 5 7.81 USGS 06090300 1981-05-24 43700 5 9.02 USGS 06090300 1982-06-30 29200 5 7.78 USGS 06090300 1983-07-11 22500 5 7.18 USGS 06090300 1984-06-24 27400 5 7.72 USGS 06090300 1985-03-19 13300 5 6.01 USGS 06090300 1986-02-26 21300 5 7.01 USGS 06090300 1987-01-11 13300 5 6.01 USGS 06090300 1988-06-10 8910 5 4.14 USGS 06090300 1989-05-11 19700 5 5.98 USGS 06090300 1990-05-31 15400 5 5.28 USGS 06090300 1991-06-13 21300 5 6.43 USGS 06090300 1992-01-10 8860 5 4.17 USGS 06090300 1993-06-18 19800 5 6.13 USGS 06090300 1994-04-24 12100 5 5.03 USGS 06090300 1995-06-09 21800 5 6.43 USGS 06090300 1996-06-15 30200 5 7.23 USGS 06090300 1997-06-15 34500 1,2,5 USGS 06090300 1998-07-03 24900 5 6.51 USGS 06090300 1999-06-07 20500 5 6.07 USGS 06090300 2000-02-24 8050 5 3.98 USGS 06090300 2001-06-16 6300 1,2,5 USGS 06090300 2002-06-12 15800 5 5.39 USGS 06090300 2003-05-31 13800 5 5.07 USGS 06090300 2004-05-28 8180 5 3.92 USGS 06090300 2005-06-04 13100 5 4.95 USGS 06090300 2006-06-12 18800 5 5.84 USGS 06090300 2007-06-08 12700 5 4.90 USGS 06090300 2008-05-28 28400 5 6.97 USGS 06090300 2009-06-02 20800 5 5.98 USGS 06090300 2010-06-19 26900 5 6.52 USGS 06090300 2011-06-11 38800 5 8.10 USGS 06090300 2012-04-28 19400 5 5.83 USGS 06090300 2013-06-05 12200 5 4.70 USGS 06090300 2014-05-31 18100 5 5.57 USGS 06090300 2015-06-04 12400 5 4.74 USGS 06090300 2016-05-23 13200 5 4.87 USGS 06090300 2017-05-20 17800 5 5.57 USGS 06090300 2018-06-21 18:15 40800 5 7.98 USGS 06090300 2019-05-29 08:15 27500 5 6.72 USGS 06090300 2020-07-01 12:45 20100 5 5.86 USGS 06090300 2021-05-28 00:15 13600 5 4.94 USGS 06090300 2022-06-22 23:30 11700 5 4.63 USGS 06090300 2023-06-11 05:00 24100 5 6.34