# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-03 12:15:04 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 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 08181800 San Antonio Rv nr Elmendorf, TX # # 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 08181800 1963-02-18 2920 6 17.19 USGS 08181800 1963-10-24 5320 6 24.30 USGS 08181800 1965-05-18 15100 6 35.34 USGS 08181800 1965-12-03 5020 6 24.04 USGS 08181800 1967-09-22 15000 6 35.25 USGS 08181800 1968-01-18 29800 6 40.15 USGS 08181800 1969-08-28 3220 6 21.42 USGS 08181800 1970-05-27 5240 6 26.99 USGS 08181800 1971-08-04 6240 6 27.20 USGS 08181800 1972-05-08 12200 6 33.15 USGS 08181800 1973-09-27 40000 6 47.60 USGS 08181800 1974-08-08 13400 6 35.74 USGS 08181800 1975-06-08 7670 6 29.31 USGS 08181800 1976-05-07 11300 6 31.80 USGS 08181800 1977-04-20 18000 6 35.02 USGS 08181800 1977-11-02 12400 6 31.16 USGS 08181800 1979-06-02 12900 6 31.96 USGS 08181800 1980-08-11 5840 6 24.70 3 USGS 08181800 1981-06-14 18000 6 44.50 USGS 08181800 1981-10-07 7730 6 35.82 USGS 08181800 1983-09-19 4730 6 30.89 USGS 08181800 1983-11-05 1870 6 21.79 USGS 08181800 1984-10-11 10500 6 38.98 USGS 08181800 1986-06-05 35900 6 53.06 3 USGS 08181800 1987-06-01 20400 6 40.13 USGS 08181800 1988-07-21 5540 6 25.41 USGS 08181800 1989-06-11 4240 6 22.59 USGS 08181800 1990-07-16 20700 6 39.84 USGS 08181800 1991-04-06 8540 6 30.05 USGS 08181800 1992-05-27 20700 6 39.82 USGS 08181800 1993-05-06 15400 6 36.51 3 USGS 08181800 1994-05-02 5620 6 32.61 USGS 08181800 1995-06-29 8880 6 37.22 USGS 08181800 1996-09-15 2300 6 23.51 USGS 08181800 1997-06-24 13800 6 42.57 USGS 08181800 1998-08-23 7210 6 35.14 USGS 08181800 1998-10-18 75100 6 64.22 USGS 08181800 2000-06-11 7500 6 36.12 USGS 08181800 2000-11-04 10900 6 41.56 USGS 08181800 2002-07-06 67800 6 63.38 USGS 08181800 2002-10-25 15200 6 46.21 USGS 08181800 2004-06-10 06:30 16100 6 47.07 USGS 08181800 2004-11-23 07:30 20800 6 50.80 USGS 08181800 2006-05-05 09:00 4640 6 28.75 USGS 08181800 2007-08-17 15:30 42000 6 56.23 USGS 08181800 2008-08-20 11:45 5380 6 30.24 USGS 08181800 2009-09-22 22:15 1840 6 20.86 USGS 08181800 2010-09-08 13:45 16100 6 42.75 USGS 08181800 2011-01-09 11:45 2570 6 23.22 USGS 08181800 2012-08-19 11600 6 38.90 USGS 08181800 2013-05-26 04:45 32100 6 52.41 USGS 08181800 2014-05-13 10:30 10400 6 37.68 USGS 08181800 2015-05-24 12:00 19100 6 44.99 USGS 08181800 2016-06-03 09:45 18800 6 44.82 USGS 08181800 2016-12-04 01:00 17200 6 43.59 USGS 08181800 2018-09-10 14:30 13500 6 40.61 USGS 08181800 2018-11-10 06:00 5190 6 31.11 USGS 08181800 2020-05-25 08:00 5640 6 31.90 USGS 08181800 2021-07-07 11:30 12700 6 39.91 USGS 08181800 2021-10-15 01:45 11300 6 38.64 USGS 08181800 2023-05-13 22:00 8160 6 35.22