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Peak Streamflow for the Nation

USGS 50144000 RIO GRANDE DE ANASCO NR SAN SEBASTIAN, PR

Anasco Municipio, Puerto Rico
Hydrologic Unit Code 21010003
Latitude  18°17'03.00", Longitude  67°03'03.46" NAD27
Drainage area 134  square miles
Gage datum 164.0 feet above NGVD29
Output formats
Table
Graph
Tab-separated file
peakfq (watstore) format
Reselect output format
Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1964 1963-11-02 15.34 12,500
1965 1965-08-25 14.70 11,600
1966 1966-06-18 12.86 8,800
1967 1967-09-01 12.30 8,020
1968 1968-09-09 11.48 6,980
1969 1969-05-17 16.43 14,400
1970 1969-11-09 14.13 10,700
1971 1971-06-30 11.86 7,450
1972 1971-10-26 19.61 20,300
1973 1972-10-21 17.28 16,000
1974 1974-09-27 12.35 8,090
1975 1975-09-16 33.90 140,000
1976 1976-04-29 9.836 9,320
1977 1977-09-13 9.82 9,300
1978 1978-09-24 9.62 8,960
1979 1979-08-31 18.10 38,700
1980 1980-05-27 15.60 28,600
1981 1981-07-14 8.27 7,830
1982 1982-09-13 15.92 29,700
1983 1983-04-21 8.36 8,000
1984 1983-10-22 12.90 19,300
1985 1985-05-18 26.77 77,200
1986 1985-10-07 21.94 53,600
1987 1987-08-18 7.23 5,950
1988 1988-08-24 16.65 32,300
1989 1988-10-20 11.61 15,600
1990 1989-10-19 10.45 12,600
1991 1991-08-05 10.93 13,800
1992 1992-09-30 13.35 21,400
1993 1992-10-10 13.54 21,300
1994 1994-09-07 8.16 7,410
1995 1994-10-12 11.07 14,200
1996 1996-09-10 21.33 51,2009
1997 1996-10-14 9.21 9,710
1998 1998-09-22 34.50 162,0009
1999 1999-09-06 11.44 15,900
2000 1999-11-08 12.05 17,800
2001 2000-10-23 8.90 9,130
2002 2002-04-27   4,6701,2
2003 2003-05-16 10.67 13,100
2004 2004-09-16 16.63 32,700
2005 2005-09-28 10.21 12,000
2006 2005-10-11 14.76 25,400
2007 2007-08-25 10.37 12,400
2008 2008-09-03 20.33 50,800
2009 2009-05-21 10.38 12,400
2010 2009-10-09 10.50 12,700
2011 2010-10-08 19.51 46,400
2012 2012-05-02 11.10 14,200
2013 2013-05-10 12.43 17,900
2014 2014-08-24 13.86 22,400
2015 2015-09-20 11.95 16,500
2016 2015-10-25 14.87 25,800
2017 2017-09-20 35.84 185,0002,9
2018 2017-10-01   12,700
2019 2019-09-09 8.79 5,750
2020 2020-07-30 12.29 12,500
2021 2020-10-18 11.39 10,600
2022 2022-09-18 26.21 59,0009
2023 2023-09-19 9.37 6,770
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.