# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-12 21:21:36 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 03529500 POWELL RIVER AT BIG STONE GAP, VA # # 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 03529500 1945-02-13 4900 6.00 USGS 03529500 1946-01-07 9200 9.80 USGS 03529500 1947-01-15 5300 7.00 USGS 03529500 1948-02-13 8510 9.34 USGS 03529500 1949-03-18 4800 6.25 USGS 03529500 1950-01-30 4960 6.36 USGS 03529500 1950-12-07 4800 6.27 USGS 03529500 1951-12-15 5260 6.97 USGS 03529500 1953-02-21 5350 7.04 USGS 03529500 1954-01-16 2880 4.89 USGS 03529500 1955-03-16 5360 6.62 USGS 03529500 1956-04-15 6540 7.95 USGS 03529500 1957-01-29 9000 9.67 USGS 03529500 1958-05-06 3770 5.70 USGS 03529500 1959-01-21 4950 6.71 USGS 03529500 1960-03-30 4080 5.98 USGS 03529500 1961-02-25 4420 6.27 USGS 03529500 1962-02-28 5160 6.88 USGS 03529500 1963-03-12 16800 13.72 USGS 03529500 1964-03-15 3740 5.67 USGS 03529500 1965-03-26 5230 6.94 USGS 03529500 1966-02-13 7890 8.92 USGS 03529500 1967-03-07 10700 10.82 USGS 03529500 1968-03-12 3200 5.18 USGS 03529500 1969-01-20 1680 3.68 USGS 03529500 1969-12-30 10100 10.39 USGS 03529500 1971-05-07 4390 6.24 USGS 03529500 1972-01-20 3810 5.74 USGS 03529500 1973-03-16 6340 7.83 USGS 03529500 1973-11-27 6420 7.86 USGS 03529500 1975-03-30 5100 6.83 USGS 03529500 1976-03-30 3740 5.53 USGS 03529500 1977-04-05 24000 16.50 USGS 03529500 1978-12-09 4940 7.10 USGS 03529500 1980-03-21 3310 5.71 USGS 03529500 1981-06-06 2040 4.50 USGS 03529500 1982-09-14 5950 7.83 USGS 03529500 1983-05-23 2220 4.69 USGS 03529500 1984-05-07 11300 10.93 USGS 03529500 1985-02-01 2240 4.71 USGS 03529500 1986-02-18 3700 6.08 USGS 03529500 1986-11-09 3530 5.93 USGS 03529500 1987-12-25 2500 4.98 USGS 03529500 1989-06-16 6080 7.92 USGS 03529500 1990-02-10 4640 6.87 USGS 03529500 1991-03-23 5070 7.20 USGS 03529500 1991-12-02 6960 8.49 USGS 03529500 1993-02-21 4560 6.81 USGS 03529500 1994-02-11 10200 10.32 USGS 03529500 2002-03-18 13000 12.07 USGS 03529500 2003-02-16 9930 10.54 USGS 03529500 2004-05-31 7150 8.98 USGS 03529500 2004-12-01 3410 6.36 USGS 03529500 2006-04-08 3020 6.02 USGS 03529500 2007-04-15 4670 7.34 USGS 03529500 2008-03-20 1820 4.85 USGS 03529500 2009-09-26 3530 6.46 USGS 03529500 2010-05-03 5660 8.03 USGS 03529500 2011-02-28 3010 6.01 USGS 03529500 2011-11-16 3380 6.33 USGS 03529500 2013-01-30 4620 7.30 USGS 03529500 2013-12-08 2060 5.11 USGS 03529500 2015-03-04 9440 9.95 USGS 03529500 2015-12-25 2030 5.42 USGS 03529500 2017-04-23 21:00 7570 9.06 USGS 03529500 2018-02-11 01:00 7730 9.94 USGS 03529500 2019-02-24 07:45 4900 8.14 USGS 03529500 2020-02-06 12:15 9550 10.92 USGS 03529500 2021-03-28 11:45 5720 8.71 USGS 03529500 2022-07-28 12:00 5690 8.69 USGS 03529500 2023-02-17 06:45 5610 8.63