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Peak Streamflow for the Nation

USGS 01618000 POTOMAC RIVER AT SHEPHERDSTOWN, WV

Jefferson County, West Virginia
Hydrologic Unit Code 02070004
Latitude  39°26'05.0", Longitude  77°48'05.0" NAD83
Drainage area 5,955  square miles
Gage datum 280.26 feet above NAVD88
Output formats
Table
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Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1889 1889-06-01 39.20 290,0007
1924 1924-05-13 29.80 168,0007
1929 1929-04-17 25.53 126,000
1930 1929-10-23 19.83 82,400
1931 1931-05-24 10.92 32,200
1932 1932-05-14 24.75 119,000
1933 1933-04-21 19.10 77,800
1934 1934-01-08 11.20 33,600
1935 1934-12-02 17.00 64,400
1936 1936-03-19 42.07 335,000
1937 1937-04-27 33.20 207,000
1938 1937-10-29 26.78 138,000
1939 1939-02-05 20.36 86,500
1940 1940-04-21 17.75 69,400
1941 1941-04-06 13.53 45,200
1942 1942-05-24 18.97 77,100
1943 1942-10-16 32.68 201,000
1944 1944-05-08 14.94 52,600
1945 1945-09-19 19.31 79,000
1946 1946-06-03 12.65 40,600
1947 1947-03-16 9.95 28,200
1948 1948-04-15 18.49 73,800
1949 1949-06-19 19.84 82,300
1950 1950-02-03 14.36 49,900
1951 1951-06-15 19.60 81,000
1952 1952-04-29 19.09 77,800
1953 1952-11-23 19.98 83,600
1954 1954-03-03 19.47 80,200
1955 1955-08-20 25.26 124,000
1956 1956-04-08 14.79 52,000
1957 1957-02-11 15.28 54,700
1958 1958-05-07 15.88 58,100
1959 1959-06-04 10.32 29,600
1960 1960-05-10 20.35 86,200
1961 1961-02-20 18.57 74,300
1962 1962-03-23 19.90 83,000
1963 1963-03-21 21.10 91,400
1964 1964-04-30 18.30 72,600
1965 1965-03-06 18.07 71,100
1966 1966-02-14 16.23 60,100
1967 1967-03-08 22.54 102,000
1968 1968-03-18 15.69 57,000
1969 1969-03-26 8.96 23,600
1970 1970-04-03 19.45 80,000
1971 1971-02-24 17.86 69,800
1972 1972-06-23 31.58 187,000
1973 1973-04-29 17.06 65,000
1974 1973-12-28 19.52 80,600
1975 1975-03-21 22.19 99,400
1976 1976-01-02 18.33 72,700
1977 1976-10-10 25.31 124,000
1978 1978-03-16 20.81 89,400
1979 1979-02-27 23.60 110,000
1980 1980-05-02 14.57 50,900
1981 1981-04-14 12.79 41,500
1982 1982-06-14 16.64 62,700
1983 1983-04-26 19.17 78,600
1984 1984-02-15 26.07 131,000
1985 1985-02-13 15.08 53,600
1986 1985-11-07 31.44 187,000
1987 1987-04-18 20.44 86,900
1988 1988-05-19 18.19 72,300
1989 1989-05-17 16.20 60,100
1990 1990-05-30 11.49 35,100
1991 1991-01-18 16.12 59,600
1992 1992-04-23 12.46 39,900
1993 1993-03-05 22.15 99,100
2001 2001-03-22 12.86 41,900
2002 2002-04-23 12.10 38,100
2003 2003-09-20 19.88 83,200
2004 2003-12-12 18.48 74,100
2017 2017-05-06 14.53 53,200
2018 2018-06-04 23.02 112,000
2019 2018-12-17 22.12 105,000
2020 2020-05-01 15.25 57,800
2021 2021-03-02 17.54 72,300
2022 2022-05-08 20.00 89,200
2023 2023-03-05 10.27 30,500
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  Peak Streamflow Qualification Codes.