# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-18 15:06:45 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 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 06174500 Milk River at Nashua 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 06174500 1940-04-23 12000 5 21.80 USGS 06174500 1941-03-31 6660 5 17.67 1 USGS 06174500 1942-06-06 6270 5 1942-03-20 14.98 USGS 06174500 1943-04-02 17400 5 26.97 USGS 06174500 1944-03-27 6700 2,5 18.59 1 USGS 06174500 1945-03-28 2500 1,5 12.08 1 USGS 06174500 1946-07-11 5080 5 12.74 USGS 06174500 1947-03-30 11000 1,5 23.56 1 USGS 06174500 1948-06-06 4760 5 12.11 USGS 06174500 1949-04-01 2070 5 1949-03-23 7.62 USGS 06174500 1950-04-22 12500 5 22.62 USGS 06174500 1951-04-09 10100 5 1951-04-03 21.87 USGS 06174500 1952-04-18 45300 5 31.38 USGS 06174500 1953-05-31 13400 5 25.50 USGS 06174500 1954-04-13 10900 5 22.35 USGS 06174500 1955-04-06 10200 5 20.98 USGS 06174500 1956-03-28 3170 5 1956-03-29 13.34 USGS 06174500 1957-03-30 1750 5 1957-03-29 8.74 USGS 06174500 1958-04-08 3840 5 11.31 USGS 06174500 1959-03-24 10000 1,5 24.43 1 USGS 06174500 1960-03-27 14200 5 26.17 USGS 06174500 1961-03-22 702 5 1961-02-06 4.05 USGS 06174500 1962-07-17 9670 5 20.30 USGS 06174500 1963-06-10 4250 5 11.70 USGS 06174500 1964-06-20 3330 5 9.40 USGS 06174500 1965-05-09 9610 5 20.23 2 1965-04-13 22.93 1 USGS 06174500 1966-03-25 7060 1,5 21.35 1 USGS 06174500 1967-03-30 12000 2,5 25.39 1 USGS 06174500 1968-03-09 2500 2,5 10.43 1 USGS 06174500 1969-04-08 8880 5 19.34 USGS 06174500 1970-05-06 6320 5 15.05 USGS 06174500 1971-04-09 4670 2,5 12.41 2 1971-04-04 14.57 1 USGS 06174500 1972-06-13 7360 5 18.57 USGS 06174500 1973-07-03 1070 5 4.21 USGS 06174500 1974-05-29 8140 5 17.85 USGS 06174500 1975-05-12 8220 5 18.13 USGS 06174500 1976-03-23 9240 5 20.20 USGS 06174500 1977-02-26 690 1,5 1977-02-21 4.47 1 USGS 06174500 1978-04-05 18900 5 28.93 USGS 06174500 1979-03-27 14300 1,5 1979-03-28 29.58 1 USGS 06174500 1980-04-05 1350 5 5.58 USGS 06174500 1981-06-05 666 5 3.63 2 1981-02-26 4.20 1 USGS 06174500 1982-03-31 8160 5 19.27 2 1982-03-30 20.54 1 USGS 06174500 1983-07-17 2620 5 8.42 USGS 06174500 1983-10-22 229 5,R 3.05 R,2 1983-12-18 3.73 1 USGS 06174500 1985-08-04 1230 5 4.50 R USGS 06174500 1986-03-08 18500 5 30.09 USGS 06174500 1986-10-08 13700 5 26.11 USGS 06174500 1988-05-11 679 5 3.60 USGS 06174500 1989-03-30 4500 5 15.11 1 USGS 06174500 1990-03-17 1700 1,5 9.27 1 USGS 06174500 1991-07-08 6170 5 15.99 USGS 06174500 1992-06-18 523 5 3.30 2 1992-02-11 4.40 1 USGS 06174500 1993-07-30 6380 5 16.37 USGS 06174500 1994-03-16 8800 5 23.02 1 USGS 06174500 1995-06-26 3500 5 10.40 USGS 06174500 1996-03-20 10000 1,2,5 1996-03-20 1200 23.71 1 USGS 06174500 1997-03-31 13300 5 25.75 USGS 06174500 1998-07-08 4270 5 11.68 USGS 06174500 1999-03-27 7140 5 16.83 USGS 06174500 2000-07-14 2180 5 6.72 USGS 06174500 2001-06-16 3270 5 8.87 USGS 06174500 2002-08-23 2840 5 8.81 USGS 06174500 2003-03-25 4790 5 12.03 2 2003-03-21 17.46 1 USGS 06174500 2004-03-21 8000 1,2,5 21.49 1 USGS 06174500 2005-06-11 4540 5 11.35 USGS 06174500 2006-04-04 2010 5 2006-03-11 7.12 1 USGS 06174500 2007-06-19 4960 5 12.44 USGS 06174500 2008-06-16 3020 5 9.22 USGS 06174500 2009-03-25 2750 1,2,5 2009-03-26 11.97 1 USGS 06174500 2010-05-28 6180 5 14.56 USGS 06174500 2011-06-09 26500 5 29.52 USGS 06174500 2012-06-01 4160 5 11.23 USGS 06174500 2013-06-10 8740 5 18.81 USGS 06174500 2014-08-27 12800 5 23.28 USGS 06174500 2015-03-16 4300 1,2,5 2015-03-16 1300 14.80 1 USGS 06174500 2016-05-13 8550 5 16.93 2 2016-05-14 16.94 USGS 06174500 2016-10-12 9400 5 19.07 USGS 06174500 2018-04-30 15:15 12400 5 22.40 USGS 06174500 2019-03-29 16:45 15500 5 25.88 2 2019-03-26 1745 27.47 1 USGS 06174500 2020-03-08 17:00 8440 2,5 21.60 1,2 2020-03-08 2300 21.75 1 USGS 06174500 2020-10-17 09:00 381 5 2.48 2 2021-02-09 0945 4.44 1 USGS 06174500 2022-03-25 11:00 835 2,5 4.39 1 USGS 06174500 2023-04-18 12:00 16200 5 26.45 USGS 06174500 2024-05-10 23:45 2610 5 7.79 2 2024-03-22 1230 10.02 1