# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-06 01:56:57 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 05585500 ILLINOIS RIVER AT MEREDOSIA, IL # # 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 05585500 1921-05-05 34800 5 14.60 USGS 05585500 1922-04-20 93100 5 25.10 USGS 05585500 1923-03-28 38300 5 15.40 USGS 05585500 1924-07-04 55400 5 19.10 USGS 05585500 1925-03-28 38600 5 15.40 USGS 05585500 1926-09-19 71200 5 22.20 USGS 05585500 1926-10-09 105000 2,5 1926-10-12 26.20 USGS 05585500 1927-12-15 59200 5 19.20 USGS 05585500 1929-04-16 63300 2,5 1929-04-06 21.20 USGS 05585500 1930-03-05 48000 5 18.00 USGS 05585500 1931-06-15 23300 5 11.50 USGS 05585500 1932-01-26 36000 5 15.00 USGS 05585500 1933-05-23 90800 5 25.50 USGS 05585500 1934-04-08 15800 5 9.40 USGS 05585500 1935-05-18 70800 2,5 1935-05-17 22.40 USGS 05585500 1936-03-05 57300 5 19.80 USGS 05585500 1937-05-10 46400 5 17.30 USGS 05585500 1938-04-16 68600 5 21.80 USGS 05585500 1939-03-22 69500 5 18.08 2 1939-03-21 18.27 USGS 05585500 1940-03-08 25600 1,5 1940-03-09 8.25 USGS 05585500 1941-06-17 26000 1,5 1941-06-18 8.58 USGS 05585500 1942-02-17 73600 1,5 1942-02-17 1200 19.45 USGS 05585500 1943-05-26 123000 5 28.61 USGS 05585500 1944-04-29 102000 5 24.86 2 1944-05-01 25.22 USGS 05585500 1945-05-24 62800 5 18.07 2 1945-05-24 1200 18.09 USGS 05585500 1946-01-14 66000 5 18.88 2 1946-01-15 18.94 USGS 05585500 1947-06-11 68300 5 20.15 2 1947-06-14 20.68 USGS 05585500 1948-04-01 73600 5 20.59 2 1948-03-31 20.70 USGS 05585500 1949-02-27 59800 5 16.91 USGS 05585500 1950-05-02 77200 5 20.43 2 1950-05-03 20.48 USGS 05585500 1951-02-28 77800 5 20.15 USGS 05585500 1952-04-25 55700 5 17.48 2 1952-04-29 17.94 USGS 05585500 1953-04-07 35200 5 11.78 2 1953-04-05 11.93 USGS 05585500 1954-04-24 33300 5 11.07 2 1954-04-25 11.10 USGS 05585500 1955-02-27 37700 5 11.87 2 1955-02-26 11.89 USGS 05585500 1956-06-02 29700 5 9.53 USGS 05585500 1957-05-06 66300 5 18.21 USGS 05585500 1958-06-22 60800 5 15.97 2 1958-06-23 16.02 USGS 05585500 1959-02-19 64300 5 18.01 2 1959-02-20 18.12 USGS 05585500 1960-04-07 73000 5 20.88 2 1960-04-08 20.95 USGS 05585500 1961-05-16 53000 5 15.73 USGS 05585500 1962-03-29 91100 5 22.27 USGS 05585500 1963-03-09 41100 5 13.44 USGS 05585500 1964-04-27 48700 5 14.51 2 1964-05-01 14.54 USGS 05585500 1965-04-18 55000 5 17.62 2 1965-04-18 1200 17.65 USGS 05585500 1966-05-25 65600 5 17.93 2 1966-05-25 1200 17.95 USGS 05585500 1967-04-10 48600 5 14.69 2 1967-04-11 14.71 USGS 05585500 1968-02-11 66900 5 18.23 2 1968-02-11 1200 18.27 USGS 05585500 1969-02-09 62900 5 17.62 2 1969-02-09 1200 17.67 USGS 05585500 1970-05-22 94800 5 22.57 USGS 05585500 1970-10-01 61400 5 17.43 USGS 05585500 1972-05-01 51200 5 15.67 2 1972-05-01 1200 15.71 USGS 05585500 1973-05-02 102000 5 26.25 2 1973-04-29 26.75 USGS 05585500 1974-06-29 110000 5 24.84 USGS 05585500 1975-03-04 55100 5 16.46 USGS 05585500 1976-03-13 80600 5 20.63 2 1976-03-15 20.64 USGS 05585500 1977-05-12 45900 5 13.81 2 1977-05-07 13.81 USGS 05585500 1978-05-20 72600 5 19.85 USGS 05585500 1979-04-19 111000 5 27.28 USGS 05585500 1980-06-07 76900 5 16.95 2 1980-06-11 17.84 1 USGS 05585500 1981-05-24 75500 5 20.95 USGS 05585500 1982-03-24 104000 5 25.56 USGS 05585500 1982-12-12 112000 5 26.40 USGS 05585500 1984-03-28 76800 5 21.60 2 1984-03-29 21.69 1 USGS 05585500 1985-03-10 122000 5 27.62 USGS 05585500 1985-11-27 96800 5 24.85 USGS 05585500 1986-10-11 69600 5 21.60 USGS 05585500 1988-04-14 41800 5 13.84 USGS 05585500 1989-09-18 32800 5 10.80 USGS 05585500 2018-03-07 07:00 19.72 USGS 05585500 2019-06-04 15:00 28.39 USGS 05585500 2020-05-27 12:00 25.39 USGS 05585500 2021-07-17 08:00 17.98 USGS 05585500 2022-04-14 04:00 17.61