# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-27 17:11:04 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 12355500 N F Flathead River nr Columbia 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 12355500 1911-06-14 15100 USGS 12355500 1912-05-17 11700 USGS 12355500 1913-06-02 23800 USGS 12355500 1914-06-04 13300 USGS 12355500 1915-06-27 8540 USGS 12355500 1916-06-20 30100 USGS 12355500 1917-06-17 25400 USGS 12355500 1929-05-24 20300 10.20 USGS 12355500 1930-05-31 11800 7.96 USGS 12355500 1931-05-17 15000 8.93 USGS 12355500 1932-05-23 21200 10.35 USGS 12355500 1933-06-17 24400 11.14 USGS 12355500 1934-04-26 19400 9.95 USGS 12355500 1935-05-24 20800 10.34 USGS 12355500 1936-05-16 19000 9.86 USGS 12355500 1937-05-28 13900 8.74 USGS 12355500 1938-05-28 24000 10.87 USGS 12355500 1939-04-30 14000 8.91 USGS 12355500 1940-05-12 13900 8.57 USGS 12355500 1941-05-03 8010 6.71 USGS 12355500 1942-05-27 18000 9.57 USGS 12355500 1943-05-28 15300 8.87 2 1943-06-19 8.90 USGS 12355500 1944-05-17 7850 6.82 USGS 12355500 1945-06-02 15400 9.19 USGS 12355500 1946-05-29 22000 10.79 USGS 12355500 1947-05-10 23500 11.08 USGS 12355500 1948-05-24 26400 11.84 USGS 12355500 1949-05-14 19900 10.11 USGS 12355500 1950-06-23 21000 10.34 USGS 12355500 1951-05-12 20800 10.30 USGS 12355500 1952-04-28 18100 9.66 USGS 12355500 1953-06-14 23800 10.78 USGS 12355500 1954-05-21 31500 12.25 USGS 12355500 1955-06-14 18700 9.86 USGS 12355500 1956-05-22 29700 11.97 USGS 12355500 1957-05-07 23000 10.75 USGS 12355500 1958-05-13 20400 10.20 USGS 12355500 1959-06-06 25200 10.99 USGS 12355500 1960-06-04 20700 10.08 USGS 12355500 1961-05-28 29900 11.83 USGS 12355500 1962-05-29 14200 8.51 USGS 12355500 1963-05-31 13800 8.08 USGS 12355500 1964-06-09 69100 18.60 1894 USGS 12355500 1965-06-19 23300 10.57 USGS 12355500 1966-06-01 19500 9.60 USGS 12355500 1967-05-23 26000 11.20 USGS 12355500 1968-06-04 17500 9.08 USGS 12355500 1969-05-14 17600 8.09 USGS 12355500 1970-05-27 18400 9.09 USGS 12355500 1971-05-28 22200 10.09 USGS 12355500 1972-06-02 31400 12.00 USGS 12355500 1973-05-18 18600 9.15 USGS 12355500 1974-06-18 34300 12.58 USGS 12355500 1975-06-21 30700 11.98 USGS 12355500 1976-05-11 24200 10.56 USGS 12355500 1977-05-11 8520 6.29 USGS 12355500 1978-06-06 18000 9.00 USGS 12355500 1979-05-27 18600 9.16 USGS 12355500 1980-05-26 18400 9.18 USGS 12355500 1981-05-23 18000 9.10 USGS 12355500 1982-05-26 19900 9.55 USGS 12355500 1983-05-27 20000 9.59 USGS 12355500 1984-05-31 15400 8.42 USGS 12355500 1985-05-25 18600 9.25 USGS 12355500 1986-05-29 22900 10.25 USGS 12355500 1987-05-02 18600 9.23 USGS 12355500 1988-05-13 12300 7.52 USGS 12355500 1989-05-10 16500 8.71 USGS 12355500 1990-06-01 19300 9.16 USGS 12355500 1991-05-20 25800 11.03 USGS 12355500 1992-05-08 10900 7.14 USGS 12355500 1993-05-15 18700 9.25 USGS 12355500 1994-05-13 14300 8.21 USGS 12355500 1995-06-07 59200 17.07 USGS 12355500 1996-06-09 26400 11.27 USGS 12355500 1997-05-17 29300 11.77 USGS 12355500 1998-05-28 16400 8.79 USGS 12355500 1999-05-26 20500 9.85 USGS 12355500 2000-05-23 16500 8.78 USGS 12355500 2001-05-26 11300 7.23 USGS 12355500 2002-05-31 22600 10.29 USGS 12355500 2003-05-30 16800 8.79 USGS 12355500 2004-05-05 10700 6.94 USGS 12355500 2005-06-08 14200 8.00 USGS 12355500 2006-05-20 21600 10.00 USGS 12355500 2006-11-08 19200 9.39 USGS 12355500 2008-05-19 23600 10.47 USGS 12355500 2009-05-31 16900 8.66 USGS 12355500 2010-06-22 13200 7.64 USGS 12355500 2011-06-08 21100 9.86 USGS 12355500 2012-06-18 20100 9.43 USGS 12355500 2013-05-14 24300 10.65 USGS 12355500 2014-05-25 21900 9.97 USGS 12355500 2015-06-03 13300 7.72 USGS 12355500 2016-04-24 13000 7.63 USGS 12355500 2017-06-01 18600 9.22 USGS 12355500 2018-05-09 16:45 22500 10.21 USGS 12355500 2019-05-17 13900 7.90 USGS 12355500 2020-06-01 15:30 24400 10.55 USGS 12355500 2021-06-04 22:45 16100 8.46 USGS 12355500 2022-06-12 02:45 22700 10.16 USGS 12355500 2023-05-05 19:15 14400 7.96