# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-10-11 04:08:12 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 Montana 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 06109560 Alkali Coulee trib near Virgelle 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 06109560 1974-05-13 11.0 1.24 USGS 06109560 1975-05-07 30.0 1.76 USGS 06109560 1976-03-18 112 2.03 USGS 06109560 1977-09-30 2.00 1.17 USGS 06109560 1978-03-28 11.0 2.07 USGS 06109560 1979-03-13 3.00 2 2.85 1 USGS 06109560 1980-03-14 3.00 1.37 USGS 06109560 1981-05-31 13.0 2.20 USGS 06109560 1982-05-31 10.0 2.00 USGS 06109560 1983-07-10 5.00 1.56 USGS 06109560 1984-01-31 2.00 2 2.30 1 USGS 06109560 1985-03-17 3.00 2 1.41 USGS 06109560 1986-09-25 37.0 3.13 USGS 06109560 1987-06-20 2.00 1.26 USGS 06109560 1988-07-05 39.0 3.34 USGS 06109560 1989-03-10 14.0 2.39 USGS 06109560 1990-05-25 27.0 2.81 USGS 06109560 1991-06-20 7.00 1.71 USGS 06109560 1992-00-00 0.00 Bm USGS 06109560 1993-07-18 18.0 2.40 USGS 06109560 1994-03-02 41.0 3.39 USGS 06109560 1995-06-06 5.00 1.53 USGS 06109560 1996-03-10 50.0 2 4.14 1 USGS 06109560 1997-02-17 12.0 2.07 USGS 06109560 1998-06-27 5.20 1.59 USGS 06109560 1999-06-04 11.0 1.97 USGS 06109560 2000-00-00 0.00 Bm USGS 06109560 2001-03-20 1.00 2 2.17 1 USGS 06109560 2002-08-05 11.0 1.98 USGS 06109560 2003-03-13 9.50 2.31 USGS 06109560 2004-03-11 6.00 2.06 USGS 06109560 2005-06-12 19.0 2.46 USGS 06109560 2006-04-16 6.90 1.73 USGS 06109560 2007-03-12 11.0 2.00 USGS 06109560 2008-06-14 15.0 2.24 USGS 06109560 2009-03-30 12.6 2.09 USGS 06109560 2010-06-22 25.0 2.73 USGS 06109560 2011-05-27 37.4 3.26 USGS 06109560 2012-04-28 4.40 1.52 USGS 06109560 2013-06-03 24.6 2.71 USGS 06109560 2014-08-23 8.40 1.83 2 2014-03-16 7.78 1 USGS 06109560 2015-03-14 18.8 2.43 USGS 06109560 2016-02-09 1.00 2 1.89 1 USGS 06109560 2017-03-15 18.5 2.37 USGS 06109560 2018-04-12 16.8 2.28 2 2018-03-27 4.03 1 USGS 06109560 2019-03-20 17.6 2.38 2 2019-03-19 3.32 1 USGS 06109560 2020-00-00 7.22 4,Bm 1.73 4,Bm USGS 06109560 2021-00-00 7.22 4,Bm 1.73 4,Bm