# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-24 09:15:40 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 03575950 HUNTSVILLE SP BR AT JOHNSON ROAD, HUNTSVILLE AL # # 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 03575950 1971-12-06 3640 C 6.49 USGS 03575950 1973-03-16 11000 C 12.50 USGS 03575950 1973-12-26 7280 C 9.90 USGS 03575950 1991-12-02 2740 C 11.35 USGS 03575950 1993-03-23 3390 C 11.96 USGS 03575950 1994-02-11 4330 C 12.74 USGS 03575950 1995-04-21 2860 C 11.47 USGS 03575950 1996-04-20 5380 C 13.51 USGS 03575950 1997-09-25 3350 C 11.93 USGS 03575950 1998-05-07 5680 C 13.72 USGS 03575950 1999-06-28 14200 C 17.62 USGS 03575950 2000-04-03 6340 C 12.77 USGS 03575950 2001-06-04 7490 C 13.50 USGS 03575950 2001-12-14 5350 C 12.10 USGS 03575950 2003-05-06 14900 C 17.31 USGS 03575950 2004-07-14 8800 C 14.27 USGS 03575950 2004-12-09 6290 C 12.74 USGS 03575950 2006-05-30 3740 C 10.86 USGS 03575950 2007-08-29 7000 C 13.20 USGS 03575950 2008-03-04 8100 C 13.86 USGS 03575950 2009-07-13 8150 C 13.89 USGS 03575950 2010-05-02 9750 C 14.79 USGS 03575950 2010-11-30 8980 C 14.37 USGS 03575950 2012-01-23 8770 C 14.25 USGS 03575950 2013-07-10 23:30 13800 C 16.82 USGS 03575950 2013-12-22 10300 C 15.07 USGS 03575950 2015-04-16 6260 C 12.72 USGS 03575950 2015-12-25 10900 C 15.41 USGS 03575950 2017-08-10 8800 C 14.27 USGS 03575950 2018-09-25 19:50 5730 C 12.36 USGS 03575950 2019-02-23 20:30 8420 C 14.05 USGS 03575950 2020-04-12 21:40 9890 C 14.86