# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-03 21:37:19 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 12359800 S F Flathead R ab Twin C nr Hungry Horse 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 12359800 1964-06-08 50900 20.87 1916 USGS 12359800 1965-06-12 18300 12.81 USGS 12359800 1966-05-30 16100 12.17 USGS 12359800 1967-05-23 22700 13.92 USGS 12359800 1968-06-03 16000 12.32 USGS 12359800 1969-05-26 14000 11.79 USGS 12359800 1970-06-06 23800 14.02 USGS 12359800 1971-05-29 22500 13.75 USGS 12359800 1972-06-02 28300 14.87 USGS 12359800 1973-05-19 13400 11.59 USGS 12359800 1974-06-16 30200 15.20 USGS 12359800 1975-06-20 19800 13.11 USGS 12359800 1976-05-14 20600 13.04 USGS 12359800 1977-05-03 8370 9.93 USGS 12359800 1978-06-07 18600 12.65 USGS 12359800 1979-05-27 20300 12.97 USGS 12359800 1980-05-23 13800 11.51 USGS 12359800 1981-05-23 21400 13.20 USGS 12359800 1982-06-16 20800 13.15 USGS 12359800 1985-05-25 18200 12.53 USGS 12359800 1986-05-30 21900 13.28 USGS 12359800 1987-05-01 15900 12.18 USGS 12359800 1988-05-13 10600 10.71 USGS 12359800 1989-05-11 17300 12.50 USGS 12359800 1989-11-11 18700 12.82 USGS 12359800 1991-05-19 23100 13.85 USGS 12359800 1992-05-09 10400 10.81 USGS 12359800 1993-05-15 16900 12.53 USGS 12359800 1994-05-13 14000 11.84 USGS 12359800 1995-06-04 12600 11.42 USGS 12359800 1996-06-09 21700 13.63 USGS 12359800 1997-05-17 29100 15.01 USGS 12359800 1998-05-27 13500 11.48 USGS 12359800 1999-05-26 19300 12.76 USGS 12359800 2000-06-15 12200 11.14 USGS 12359800 2001-05-26 13400 11.41 USGS 12359800 2002-05-21 19400 12.78 USGS 12359800 2003-05-30 18800 12.65 USGS 12359800 2004-05-05 10800 10.68 USGS 12359800 2005-05-17 10800 10.67 USGS 12359800 2006-05-19 20700 13.06 USGS 12359800 2007-05-13 11400 10.87 USGS 12359800 2008-05-19 26200 13.98 USGS 12359800 2009-06-01 16100 12.05 USGS 12359800 2010-05-19 13600 11.14 USGS 12359800 2011-06-07 27700 14.13 USGS 12359800 2012-06-06 19600 12.82 USGS 12359800 2013-05-14 27500 14.26 USGS 12359800 2014-05-24 19800 12.77 USGS 12359800 2015-03-16 10100 10.34 USGS 12359800 2016-05-09 11600 10.88 USGS 12359800 2017-06-01 18600 12.63 USGS 12359800 2018-05-26 12:30 21600 13.27 USGS 12359800 2019-05-17 11:00 14600 11.68 USGS 12359800 2020-05-31 15:30 22200 13.70 USGS 12359800 2021-06-05 03:45 19800 13.10 USGS 12359800 2022-06-21 04:45 17700 12.57 USGS 12359800 2023-05-00 13:00 17400 2,Bd 12.54 Bd