# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-01-30 19:26:11 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 05501000 North River at Palmyra, MO # # 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 05501000 1935-05-09 8790 18.15 USGS 05501000 1936-02-26 15000 21.00 USGS 05501000 1937-07-13 9220 18.45 USGS 05501000 1938-03-31 8380 18.00 USGS 05501000 1939-07-25 14600 20.50 USGS 05501000 1940-03-03 3330 12.40 USGS 05501000 1941-04-19 3110 12.00 USGS 05501000 1942-06-26 15200 20.48 USGS 05501000 1942-12-27 11500 19.27 USGS 05501000 1944-04-11 27400 22.96 USGS 05501000 1945-06-16 14400 20.30 USGS 05501000 1946-01-09 8560 18.60 USGS 05501000 1947-06-01 19000 22.40 USGS 05501000 1948-03-19 8490 18.84 USGS 05501000 1949-07-20 16000 22.30 USGS 05501000 1949-12-21 5400 15.56 USGS 05501000 1951-03-29 17900 22.72 USGS 05501000 1952-03-18 7460 17.94 USGS 05501000 1953-03-31 5200 15.39 USGS 05501000 1954-06-01 2900 13.42 USGS 05501000 1955-05-28 23000 24.42 USGS 05501000 1956-06-21 6600 17.05 USGS 05501000 1957-05-17 8900 19.00 USGS 05501000 1958-07-16 11100 21.60 USGS 05501000 1959-02-10 10600 21.38 USGS 05501000 1960-03-28 5590 17.86 USGS 05501000 1961-09-14 15400 23.58 USGS 05501000 1962-03-21 9980 21.07 USGS 05501000 1963-03-05 6710 18.88 USGS 05501000 1964-04-05 6580 18.76 USGS 05501000 1965-04-06 9620 20.89 USGS 05501000 1966-06-13 6970 19.09 USGS 05501000 1967-05-07 6970 19.04 USGS 05501000 1968-06-25 9320 20.60 USGS 05501000 1969-07-09 9480 20.14 USGS 05501000 1969-10-13 26500 26.57 USGS 05501000 1971-01-04 5410 17.73 USGS 05501000 1971-12-30 2640 13.39 USGS 05501000 1973-04-21 57500 29.70 USGS 05501000 1974-05-31 17900 22.36 USGS 05501000 1975-04-24 16400 21.80 USGS 05501000 1976-04-25 7060 17.24 USGS 05501000 1977-09-13 11400 19.69 USGS 05501000 1977-11-02 12500 20.24 USGS 05501000 1979-02-23 14700 21.24 USGS 05501000 1980-03-30 3830 14.62 USGS 05501000 1981-05-18 23800 23.88 USGS 05501000 1982-06-09 27600 24.65 USGS 05501000 1982-12-03 34500 26.11 USGS 05501000 1984-06-09 13000 20.44 USGS 05501000 1985-03-04 20000 24.28 USGS 05501000 1985-11-19 21800 23.33 USGS 05501000 1986-10-03 18800 25.91 USGS 05501000 1987-12-27 7080 17.07 USGS 05501000 1989-08-29 3350 13.76 USGS 05501000 1990-06-08 29500 25.08 USGS 05501000 1991-05-15 27500 24.66 USGS 05501000 1992-02-18 4490 14.81 USGS 05501000 1993-07-01 28600 2 29.36 1 USGS 05501000 1994-04-11 12000 19.99 USGS 05501000 1995-05-25 14600 25.32 USGS 05501000 1996-05-27 18700 22.87 USGS 05501000 1997-02-21 23700 23.80 USGS 05501000 1998-03-31 14800 21.15 USGS 05501000 1999-01-22 11:30 10000 19.48 USGS 05501000 2000-06-26 10:30 2290 12.92 USGS 05501000 2001-06-06 16:30 7130 17.59 USGS 05501000 2002-05-09 23000 25.00 USGS 05501000 2003-05-11 5490 16.24 USGS 05501000 2004-08-28 19400 24.06 USGS 05501000 2005-01-13 11:00 12700 20.97 USGS 05501000 2006-06-01 20:30 3540 14.41 USGS 05501000 2007-02-25 16700 22.91 USGS 05501000 2008-09-14 22700 21.46 USGS 05501000 2009-04-30 17400 19.45 USGS 05501000 2010-07-21 24500 22.06 USGS 05501000 2011-02-28 11900 18.60 USGS 05501000 2012-05-01 3610 10.18 USGS 05501000 2013-04-18 38500 23.15 USGS 05501000 2014-09-10 11200 18.11 USGS 05501000 2015-06-25 19:30 18500 20.68 USGS 05501000 2015-12-14 11:45 9580 16.76 USGS 05501000 2017-04-30 05:45 11200 18.13 USGS 05501000 2018-09-07 23:45 7820 15.05 USGS 05501000 2019-05-29 17:07 18000 20.59 USGS 05501000 2020-06-04 03:30 9510 16.69 USGS 05501000 2021-03-18 22:00 11600 17.92 2 2021-04-11 0930 18.09 USGS 05501000 2022-06-01 13:45 6240 13.38 USGS 05501000 2023-02-22 22:15 4590 11.43 USGS 05501000 2024-04-28 22:40 11300 18.19