# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-30 05:30:15 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 01595000 NORTH BRANCH POTOMAC RIVER AT STEYER, MD # # 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 01595000 1954-10-15 11300 13.00 USGS 01595000 1956-08-06 5800 8.84 USGS 01595000 1957-02-10 5150 8.40 USGS 01595000 1958-04-07 2720 6.48 USGS 01595000 1959-01-22 2750 6.51 USGS 01595000 1960-03-30 3400 7.05 USGS 01595000 1961-08-11 4650 8.00 USGS 01595000 1962-01-07 2080 5.95 USGS 01595000 1963-03-05 6240 9.13 2 1963-03-05 1200 9.83 1 USGS 01595000 1964-03-05 3900 7.47 USGS 01595000 1965-01-02 2700 6.46 USGS 01595000 1966-05-01 3150 6.85 USGS 01595000 1967-03-06 5220 8.45 USGS 01595000 1968-05-24 5280 8.49 USGS 01595000 1969-03-24 1310 4.95 USGS 01595000 1970-01-29 3740 7.33 USGS 01595000 1970-12-22 3650 7.26 USGS 01595000 1972-06-23 2390 6.16 USGS 01595000 1972-12-09 4420 7.87 USGS 01595000 1974-04-04 3400 7.05 USGS 01595000 1974-12-25 3250 6.93 USGS 01595000 1976-01-01 2200 6.03 USGS 01595000 1976-10-09 3220 6.96 USGS 01595000 1978-07-03 6900 10.30 USGS 01595000 1979-05-12 2920 6.96 USGS 01595000 1980-08-18 1300 1 1980-02-22 6.64 1 USGS 01595000 1981-06-14 2910 6.95 USGS 01595000 1982-05-27 2230 6.25 USGS 01595000 1983-03-21 1540 5.44 USGS 01595000 1984-02-14 3100 7.13 USGS 01595000 1985-05-31 9860 12.12 USGS 01595000 1985-11-05 11500 13.14 USGS 01595000 1987-04-16 1440 5.31 USGS 01595000 1988-01-20 2440 6.47 USGS 01595000 1989-03-06 2310 6.34 USGS 01595000 1990-05-26 3630 7.62 USGS 01595000 1990-12-31 2210 6.23 USGS 01595000 1992-07-24 2490 6.53 USGS 01595000 1993-03-25 2060 6.06 USGS 01595000 1994-02-09 7290 10.40 USGS 01595000 1995-08-06 4170 8.09 USGS 01595000 1996-01-19 9260 11.75 USGS 01595000 1996-12-02 2780 6.80 USGS 01595000 1998-04-19 20:45 1940 5.82 USGS 01595000 1999-03-21 22:00 1010 4.51 2 1999-01-09 5.21 1 USGS 01595000 2000-02-19 02:45 4840 8.63 USGS 01595000 2001-07-26 14:30 6580 9.91 USGS 01595000 2002-07-27 09:30 3870 7.83 USGS 01595000 2003-09-19 05:45 7810 10.78 USGS 01595000 2003-11-12 09:30 3180 7.21 USGS 01595000 2005-03-29 00:45 2380 6.35 USGS 01595000 2006-04-22 14:30 1790 5.63 USGS 01595000 2007-07-06 01:15 2090 6.00 USGS 01595000 2008-03-05 02:45 2280 6.23 USGS 01595000 2008-12-11 23:30 2790 6.81 USGS 01595000 2010-03-13 14:30 3020 7.06 USGS 01595000 2011-04-19 17:45 3540 7.54 USGS 01595000 2011-11-23 04:00 2010 5.83 USGS 01595000 2013-08-28 22:00 2870 6.89 USGS 01595000 2014-05-16 03:30 3010 6.84 USGS 01595000 2015-03-04 16:15 3160 6.89 USGS 01595000 2016-02-03 14:15 1840 5.47 USGS 01595000 2017-07-29 11:15 8120 11.12 USGS 01595000 2018-02-16 16:00 4030 7.73 USGS 01595000 2019-06-30 05:45 10700 13.01 USGS 01595000 2019-12-17 15:30 1850 5.66 USGS 01595000 2021-02-28 19:15 3700 7.64 USGS 01595000 2022-01-01 23:15 2820 6.74 USGS 01595000 2023-05-09 11:15 2590 6.48