# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-07-27 12:42:37 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 12500450 YAKIMA RIVER ABOVE AHTANUM CREEK AT UNION GAP, WA # # 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 12500450 1967-06-22 12700 6 43.08 USGS 12500450 1968-02-24 14600 6 43.65 USGS 12500450 1969-05-25 16300 6 44.17 USGS 12500450 1970-06-04 9000 6 41.79 USGS 12500450 1971-05-12 16600 6 44.60 USGS 12500450 1972-03-14 19200 6 46.06 USGS 12500450 1972-12-22 8630 6 42.34 USGS 12500450 1974-01-16 26700 6 48.15 USGS 12500450 1975-05-15 14600 6 44.38 USGS 12500450 1975-12-04 28200 6 48.34 USGS 12500450 1977-08-17 3920 6 39.85 USGS 12500450 1977-12-03 35300 6 49.55 USGS 12500450 1979-02-14 6910 6 40.94 USGS 12500450 1980-04-29 15100 6 43.94 USGS 12500450 1980-12-27 31400 6 48.62 USGS 12500450 1982-02-21 21600 6 46.31 USGS 12500450 1983-05-31 15400 6 45.25 USGS 12500450 1984-01-25 23200 6 47.34 USGS 12500450 1985-06-08 9330 6 42.63 USGS 12500450 1986-02-26 14900 6 45.39 USGS 12500450 1986-11-25 10100 6 44.05 USGS 12500450 1988-04-16 7290 6 42.12 USGS 12500450 1989-05-11 9070 6 43.13 USGS 12500450 1990-01-10 8980 6 43.29 USGS 12500450 1990-11-25 31500 6 50.38 USGS 12500450 1992-03-17 5490 6 40.97 USGS 12500450 1993-05-13 8170 6 942.47 USGS 12500450 1994-04-20 5600 6 941.04 USGS 12500450 1995-02-22 17200 6 946.20 USGS 12500450 1996-02-09 53300 2,6 953.88 USGS 12500450 1998-05-06 15300 6 945.51 USGS 12500450 1998-12-30 15800 6 45.70 USGS 12500450 1999-12-19 12000 6 944.21 USGS 12500450 2001-05-25 3970 6 939.65 USGS 12500450 2002-04-15 15900 6 945.73 USGS 12500450 2003-02-01 19100 6 946.82 USGS 12500450 2004-04-14 5550 6 940.82 USGS 12500450 2005-01-19 8610 6 942.69 USGS 12500450 2006-05-18 13200 6 944.67 USGS 12500450 2007-03-13 19600 6 947.00 USGS 12500450 2008-05-18 16900 6 946.08 USGS 12500450 2009-01-09 31800 6 949.48 USGS 12500450 2010-06-10 7360 6 941.88 USGS 12500450 2011-05-16 33400 6 949.67 USGS 12500450 2012-04-25 21400 6 946.48 USGS 12500450 2013-05-12 11700 6 943.44 USGS 12500450 2014-03-10 11100 6 943.25 2 2014-03-09 944.92 USGS 12500450 2015-01-06 12900 6 43.90 USGS 12500450 2015-12-10 25200 6 47.68 USGS 12500450 2017-05-06 16800 6 45.20 2 2017-01-14 46.20 1 USGS 12500450 2018-05-09 15:00 14600 6 44.94 USGS 12500450 2019-04-21 14:45 8100 6 42.87 USGS 12500450 2020-02-08 01:15 19900 6 46.53 USGS 12500450 2021-04-19 18:00 8820 6 43.20 USGS 12500450 2022-06-11 01:30 17700 6 45.88 USGS 12500450 2023-05-05 11:45 14800 6 45.22