# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-26 11:33:04 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 Illinois 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 07022000 Mississippi River at Thebes, 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 07022000 1844-07-04 1080000 6,7 USGS 07022000 1933-05-18 525000 6 34.59 5 USGS 07022000 1934-04-27 140000 6 15.94 5 USGS 07022000 1935-06-10 623000 6 36.04 5 USGS 07022000 1936-03-02 318000 6 24.92 5 USGS 07022000 1937-05-07 420000 6 31.06 5 USGS 07022000 1938-05-28 552000 6 35.82 5 USGS 07022000 1939-04-21 637000 6 36.42 5 USGS 07022000 1940-04-21 199000 6 19.41 5 USGS 07022000 1941-04-24 469000 6 29.11 USGS 07022000 1942-06-30 615000 6 35.65 USGS 07022000 1943-05-27 893000 6 40.26 USGS 07022000 1944-05-06 812000 6 39.05 USGS 07022000 1945-04-02 702000 6 37.90 USGS 07022000 1946-01-14 506000 6 33.68 USGS 07022000 1947-07-06 837000 6 40.08 USGS 07022000 1948-03-28 676000 6 36.97 USGS 07022000 1949-04-04 447000 6 31.35 USGS 07022000 1950-05-15 491000 6 32.29 USGS 07022000 1951-07-24 805000 6 39.91 USGS 07022000 1952-05-02 685000 6 37.36 USGS 07022000 1953-04-06 382000 6 26.66 USGS 07022000 1954-06-07 292000 6 22.25 USGS 07022000 1955-02-25 329000 6 24.39 USGS 07022000 1955-10-09 220000 6 18.48 USGS 07022000 1957-05-23 463000 6 31.62 USGS 07022000 1958-07-25 534000 6 33.87 USGS 07022000 1959-06-05 364000 6 26.11 USGS 07022000 1960-04-11 685000 6 37.19 USGS 07022000 1961-05-13 739000 6 38.74 USGS 07022000 1962-03-27 628000 6 36.28 USGS 07022000 1963-03-09 314000 6 24.27 2 1963-03-18 27.16 1 USGS 07022000 1964-04-09 313000 6 24.62 USGS 07022000 1965-09-29 542000 6 32.85 2 1965-04-18 34.36 1 USGS 07022000 1965-10-01 525000 6 32.57 USGS 07022000 1967-07-02 533000 6 33.72 USGS 07022000 1968-05-28 388000 6 29.13 2,5 1968-05-29 28.16 USGS 07022000 1969-07-15 666000 6 36.89 2,5 1969-07-16 38.65 USGS 07022000 1970-05-05 552000 6 36.15 USGS 07022000 1971-03-04 437000 6 32.08 2 1970-10-01 33.00 USGS 07022000 1972-04-26 430000 6 32.79 USGS 07022000 1973-04-30 886000 6 43.43 USGS 07022000 1974-05-26 573000 6 36.36 USGS 07022000 1975-04-28 562000 6 36.15 USGS 07022000 1976-05-02 470000 6 32.19 2,5 1976-05-01 30.40 USGS 07022000 1977-09-18 337000 6 25.15 2 1977-03-31 25.64 USGS 07022000 1978-03-29 637000 6 38.19 USGS 07022000 1979-04-17 791000 6 43.11 USGS 07022000 1980-04-04 368000 6 31.08 USGS 07022000 1981-05-22 534000 6 34.98 5 USGS 07022000 1982-06-14 557000 6 36.06 5 USGS 07022000 1982-12-09 846000 6 42.54 5 USGS 07022000 1984-04-27 632000 6 38.58 USGS 07022000 1985-03-01 744000 6 40.46 USGS 07022000 1985-11-24 664000 6 39.84 USGS 07022000 1986-10-14 762000 6 41.52 USGS 07022000 1987-12-30 447000 6 31.19 USGS 07022000 1989-09-14 330000 6 24.22 5 USGS 07022000 1990-05-21 669000 6 39.78 USGS 07022000 1991-04-24 458000 6 31.65 2,5 1991-04-23 31.79 USGS 07022000 1992-04-25 426000 6 30.80 USGS 07022000 1993-08-07 996000 6 45.51 USGS 07022000 1993-10-02 736000 6 40.82 USGS 07022000 1995-05-23 875000 6 45.91 USGS 07022000 1996-06-04 634000 6 39.56 2,5 1996-05-17 40.55 USGS 07022000 1997-03-03 635000 6 38.96 USGS 07022000 1998-04-19 624000 6 38.57 5 USGS 07022000 1999-05-10 600000 6 37.03 USGS 07022000 2000-06-30 429000 6 31.13 USGS 07022000 2001-06-12 620000 6 37.82 USGS 07022000 2002-05-18 838000 6 44.32 USGS 07022000 2003-05-13 478000 6 33.33 USGS 07022000 2004-05-31 504000 6 33.27 USGS 07022000 2005-01-08 07:00 539000 6 35.20 2 2005-01-16 0600 35.76 USGS 07022000 2006-05-07 05:00 324000 6 24.54 USGS 07022000 2007-05-14 491000 6 32.58 USGS 07022000 2008-07-03 717000 6 41.10 2 2008-07-02 41.21 USGS 07022000 2009-05-22 603000 6 38.25 USGS 07022000 2009-11-04 660000 6 37.87 2 2010-05-22 39.02 USGS 07022000 2011-05-02 876000 6 44.35 2 2011-05-03 45.52 USGS 07022000 2012-03-26 369000 1,2,6 26.38 5 USGS 07022000 2013-06-06 803000 6 42.77 USGS 07022000 2014-07-14 03:30 539000 6 33.66 2 2014-07-14 1530 33.69 USGS 07022000 2015-06-23 14:30 732000 6 41.61 2 2015-07-03 1800 42.02 USGS 07022000 2016-01-02 08:30 1050000 6 47.36 2 2016-01-02 0100 47.74 USGS 07022000 2017-05-06 20:30 928000 6 42.92 2 2017-05-06 43.18 USGS 07022000 2018-09-12 07:30 486000 32.13 2 2018-02-28 1830 32.63 USGS 07022000 2019-06-11 00:30 945000 43.64 2 2019-06-10 2300 43.66 USGS 07022000 2020-01-15 03:00 583000 6 36.18 2 2020-03-26 2300 36.32 USGS 07022000 2021-03-22 11:00 624000 6 36.47 USGS 07022000 2022-05-09 11:30 556000 6 33.88 2 2022-05-09 1330 33.98 USGS 07022000 2023-03-06 16:00 415000 6 2023-03-07 1930 29.45