# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-27 10:01:33 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 01598500 NORTH BRANCH POTOMAC RIVER AT LUKE, 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 01598500 1900-06-17 6980 USGS 01598500 1900-11-26 9070 USGS 01598500 1902-02-28 16000 USGS 01598500 1903-02-28 9550 USGS 01598500 1904-01-22 6980 USGS 01598500 1905-03-21 8350 USGS 01598500 1906-01-23 8990 USGS 01598500 1924-03-29 51000 7 USGS 01598500 1936-03-17 37400 7 USGS 01598500 1950-03-28 6830 8.36 USGS 01598500 1951-06-13 11200 6 10.28 USGS 01598500 1952-03-11 7260 6 8.30 2 1951-12-18 11.66 USGS 01598500 1953-01-24 6400 6 7.78 USGS 01598500 1954-03-01 10500 6 9.35 USGS 01598500 1954-10-15 39400 6 17.15 USGS 01598500 1956-08-06 15800 6 11.48 USGS 01598500 1957-02-10 13200 6 10.58 USGS 01598500 1958-04-07 11100 6 9.82 USGS 01598500 1959-02-10 5560 6 7.31 2 1959-01-22 9.32 1 USGS 01598500 1960-03-30 12500 6 10.33 USGS 01598500 1961-02-19 10600 6 9.64 2 1961-02-18 14.21 USGS 01598500 1962-03-22 8800 6 8.91 USGS 01598500 1963-03-05 16800 6 11.83 USGS 01598500 1964-03-05 11200 6 10.00 USGS 01598500 1965-02-07 7600 6 8.50 2 1965-02-05 10.73 1 USGS 01598500 1966-05-01 9370 6 9.28 USGS 01598500 1967-03-07 14500 6 11.13 USGS 01598500 1968-05-24 13600 6 10.84 2 1968-01-10 11.14 1 USGS 01598500 1969-03-25 4840 6 7.05 2 1969-01-19 10.89 1 USGS 01598500 1970-01-29 9370 6 9.28 USGS 01598500 1970-12-22 8680 6 8.99 USGS 01598500 1972-03-01 7520 6 8.46 USGS 01598500 1972-12-08 12500 6 10.47 USGS 01598500 1973-12-26 7910 6 8.64 USGS 01598500 1975-01-01 8040 6 8.70 USGS 01598500 1976-01-01 5760 6 7.57 USGS 01598500 1976-10-09 9230 6 9.21 USGS 01598500 1978-07-03 28200 6 14.87 USGS 01598500 1979-03-05 8230 6 8.98 2 1979-02-22 11.17 1 USGS 01598500 1980-05-21 7000 6 8.41 USGS 01598500 1981-04-13 5330 6 7.53 USGS 01598500 1982-03-17 7330 6 8.57 USGS 01598500 1983-04-24 8690 6 9.18 USGS 01598500 1984-04-05 10000 6 9.72 USGS 01598500 1985-06-01 4850 6 7.25 USGS 01598500 1985-11-07 7940 6 8.85 USGS 01598500 1987-04-18 5780 6 7.78 USGS 01598500 1988-05-06 10100 6 9.76 USGS 01598500 1989-05-10 7170 6 8.30 USGS 01598500 1990-07-13 8540 6 8.89 USGS 01598500 1991-04-15 4700 6 6.82 USGS 01598500 1992-07-27 3650 6 6.10 USGS 01598500 1993-04-01 10700 6 9.83 USGS 01598500 1994-03-28 8140 6 8.70 USGS 01598500 1995-06-27 7350 6 8.31 USGS 01598500 1996-09-07 11800 6 10.26 USGS 01598500 1997-06-04 3970 6 6.68 USGS 01598500 1998-04-20 12:45 7720 6 8.75 USGS 01598500 1999-04-11 17:15 3550 6 6.39 USGS 01598500 2000-02-21 10:00 5420 6 7.58 USGS 01598500 2001-06-07 09:00 6630 6 8.00 USGS 01598500 2002-07-28 05:30 5110 6 7.10 USGS 01598500 2003-05-11 12:00 9610 6 9.49 USGS 01598500 2004-03-07 00:30 6360 6 7.95 USGS 01598500 2005-03-31 13:30 6130 6 7.90 USGS 01598500 2006-05-15 15:30 4420 6 6.90 USGS 01598500 2007-04-15 21:45 3240 6 6.09 USGS 01598500 2008-05-17 03:15 6010 6 7.74 USGS 01598500 2009-05-04 16:45 11700 6 8.86 3 USGS 01598500 2010-03-17 12:30 7760 6 7.13 USGS 01598500 2011-05-18 07:15 11200 6 8.65 USGS 01598500 2012-03-01 18:15 4010 6 5.31 USGS 01598500 2013-05-08 11:30 7090 6 6.94 USGS 01598500 2014-05-16 08:45 7070 6 6.93 USGS 01598500 2015-06-28 10:45 4800 6 5.79 USGS 01598500 2016-05-22 23:45 3790 6 5.20 USGS 01598500 2017-07-29 10700 6 8.50 USGS 01598500 2018-09-09 19:45 9180 6 7.87 USGS 01598500 2018-12-16 14:45 5040 6 5.93 USGS 01598500 2020-04-30 10:30 4290 6 5.50 USGS 01598500 2021-03-01 21:30 5440 6 6.14 USGS 01598500 2022-05-08 00:45 5500 6 6.17 USGS 01598500 2023-05-10 14:30 4160 6 5.42