Highest listed crest 21.21 ft September 22, 1945; 25,000 cubic feet per second
Flood stage 14.0 ft Major flooding from 18.0 ft
Crests at major 11 7th of 79 gauges in South Carolina
Most recent flood crest August 14, 2024 15.74 ft, minor flooding Listed crests at the Lynches River at Effingham, 1891 to 2025 5 10 15 20 25 ft Flood stage 14.0 ft Major 18.0 ft Sep 2, 1891: 14.80 ft, minor flooding Jan 24, 1892: 17.50 ft, moderate flooding Feb 27, 1892: 16.00 ft, moderate flooding Mar 7, 1892: 11.50 ft, action stage Apr 3, 1892: 11.90 ft, action stage Jun 10, 1892: 11.20 ft, action stage Jul 19, 1892: 11.50 ft, action stage Aug 19, 1892: 11.10 ft, action stage Feb 23, 1893: 12.20 ft, action stage Jun 10, 1893: 11.00 ft, action stage Jun 17, 1893: 11.20 ft, action stage Sep 4, 1893: 16.00 ft, moderate flooding Oct 30, 1893: 12.20 ft, action stage Jan 18, 1894: 12.00 ft, action stage Mar 7, 1894: 12.10 ft, action stage Aug 11, 1894: 16.20 ft, moderate flooding Oct 5, 1894: 14.20 ft, minor flooding Oct 15, 1894: 16.50 ft, moderate flooding Jan 15, 1895: 16.30 ft, moderate flooding Feb 4, 1895: 15.50 ft, minor flooding Feb 25, 1895: 11.10 ft, action stage Mar 12, 1895: 12.50 ft, action stage Mar 19, 1895: 14.70 ft, minor flooding Apr 9, 1895: 11.00 ft, action stage Apr 13, 1895: 14.50 ft, minor flooding Apr 19, 1895: 13.10 ft, action stage Apr 24, 1895: 13.10 ft, action stage May 5, 1895: 12.10 ft, action stage Feb 12, 1896: 15.50 ft, minor flooding Jul 15, 1896: 15.70 ft, minor flooding Feb 14, 1897: 14.00 ft, minor flooding Feb 21, 1897: 11.40 ft, action stage Mar 1, 1897: 12.30 ft, action stage Mar 22, 1897: 12.30 ft, action stage Apr 13, 1897: 12.30 ft, action stage Jul 29, 1897: 12.10 ft, action stage Aug 30, 1898: 13.80 ft, action stage Sep 7, 1898: 13.40 ft, action stage Nov 26, 1898: 13.80 ft, action stage Jan 22, 1899: 12.40 ft, action stage Feb 12, 1899: 17.20 ft, moderate flooding Feb 22, 1899: 16.00 ft, moderate flooding Mar 4, 1899: 15.90 ft, minor flooding Apr 8, 1899: 12.00 ft, action stage Apr 14, 1899: 11.90 ft, action stage Feb 20, 1900: 13.00 ft, action stage Mar 2, 1900: 11.10 ft, action stage Mar 8, 1900: 12.70 ft, action stage Apr 2, 1900: 11.00 ft, action stage Apr 25, 1900: 16.60 ft, moderate flooding Apr 3, 1901: 13.70 ft, action stage Apr 9, 1901: 14.50 ft, minor flooding Apr 25, 1901: 14.80 ft, minor flooding May 28, 1901: 15.80 ft, minor flooding Jun 22, 1901: 17.20 ft, moderate flooding Aug 13, 1901: 14.60 ft, minor flooding Sep 25, 1901: 14.50 ft, minor flooding Jan 5, 1902: 13.50 ft, action stage Feb 8, 1902: 15.00 ft, minor flooding Mar 7, 1902: 13.20 ft, action stage Feb 15, 1903: 16.60 ft, moderate flooding Jun 13, 1903: 13.90 ft, action stage Aug 14, 1904: 12.60 ft, action stage Feb 21, 1905: 13.50 ft, action stage Mar 1, 1905: 12.00 ft, action stage Aug 19, 1905: 11.00 ft, action stage Jan 1, 1906: 11.20 ft, action stage Jan 7, 1906: 11.00 ft, action stage Jan 29, 1906: 13.00 ft, action stage Feb 2, 1906: 14.00 ft, minor flooding Feb 13, 1906: 13.50 ft, action stage Jun 17, 1906: 14.50 ft, minor flooding Aug 4, 1906: 11.00 ft, action stage Jul 5, 1907: 10.00 ft, below flood stage Jan 18, 1908: 13.10 ft, action stage Feb 19, 1908: 15.00 ft, minor flooding Mar 31, 1908: 11.80 ft, action stage Aug 30, 1908: 20.00 ft, major flooding; 18,000 cubic feet per second Jun 13, 1909: 12.20 ft, action stage Mar 3, 1910: 12.30 ft, action stage Jun 18, 1910: 13.00 ft, action stage Mar 16, 1911: 9.50 ft, below flood stage Nov 1, 1911: 12.50 ft, action stage Dec 25, 1911: 12.00 ft, action stage Dec 29, 1911: 14.50 ft, minor flooding Jan 11, 1912: 13.00 ft, action stage Feb 21, 1912: 16.50 ft, moderate flooding Mar 1, 1912: 13.50 ft, action stage Mar 7, 1912: 11.80 ft, action stage Mar 13, 1912: 12.40 ft, action stage Mar 22, 1912: 13.40 ft, action stage Jun 14, 1912: 11.00 ft, action stage Feb 25, 1913: 12.50 ft, action stage Mar 9, 1913: 12.30 ft, action stage Mar 21, 1913: 15.70 ft, minor flooding Jan 7, 1914: 12.60 ft, action stage Mar 2, 1914: 12.10 ft, action stage Mar 6, 1914: 12.80 ft, action stage Jan 15, 1915: 12.50 ft, action stage Jan 25, 1915: 13.60 ft, action stage Mar 13, 1915: 11.00 ft, action stage Feb 11, 1916: 11.00 ft, action stage Jul 20, 1916: 18.70 ft, major flooding Jul 30, 1916: 16.20 ft, moderate flooding Aug 3, 1916: 15.00 ft, minor flooding Apr 15, 1917: 11.40 ft, action stage Jun 18, 1917: 12.00 ft, action stage Feb 9, 1918: 11.40 ft, action stage Apr 21, 1918: 11.50 ft, action stage Apr 28, 1918: 11.90 ft, action stage May 18, 1918: 12.00 ft, action stage Feb 5, 1919: 11.30 ft, action stage Jul 29, 1919: 16.00 ft, moderate flooding Feb 4, 1920: 11.00 ft, action stage Mar 22, 1920: 11.90 ft, action stage Oct 3, 1920: 11.90 ft, action stage Feb 11, 1921: 13.30 ft, action stage Feb 16, 1921: 16.50 ft, moderate flooding May 21, 1921: 13.00 ft, action stage Jul 25, 1921: 11.50 ft, action stage Jul 29, 1921: 11.90 ft, action stage Feb 15, 1922: 11.50 ft, action stage Feb 21, 1922: 15.70 ft, minor flooding Mar 12, 1922: 17.30 ft, moderate flooding Apr 13, 1922: 14.50 ft, minor flooding Jun 5, 1922: 11.00 ft, action stage Jul 24, 1922: 12.50 ft, action stage Aug 25, 1922: 11.50 ft, action stage Oct 25, 1922: 11.60 ft, action stage Mar 24, 1923: 12.60 ft, action stage Sep 29, 1923: 11.50 ft, action stage Jan 26, 1924: 11.10 ft, action stage Apr 13, 1924: 13.40 ft, action stage Apr 20, 1924: 11.90 ft, action stage Jul 5, 1924: 13.00 ft, action stage Sep 19, 1924: 11.00 ft, action stage Sep 25, 1924: 11.80 ft, action stage Oct 1, 1924: 13.60 ft, action stage Oct 6, 1924: 14.40 ft, minor flooding Jan 4, 1925: 12.90 ft, action stage Jan 11, 1925: 13.80 ft, action stage Jan 24, 1925: 17.20 ft, moderate flooding Apr 10, 1926: 11.40 ft, action stage Apr 18, 1926: 14.00 ft, minor flooding Mar 12, 1927: 8.80 ft, below flood stage Oct 18, 1927: 11.20 ft, action stage Dec 12, 1927: 13.20 ft, action stage Dec 26, 1927: 11.90 ft, action stage Feb 26, 1928: 13.10 ft, action stage Mar 1, 1928: 14.30 ft, minor flooding Apr 24, 1928: 14.00 ft, minor flooding May 5, 1928: 13.20 ft, action stage Jul 3, 1928: 12.50 ft, action stage Jul 9, 1928: 11.00 ft, action stage Jul 16, 1928: 12.50 ft, action stage Aug 21, 1928: 11.70 ft, action stage Sep 11, 1928: 19.00 ft, major flooding Sep 20, 1928: 19.40 ft, major flooding Sep 24, 1928: 19.40 ft, major flooding Feb 19, 1929: 13.10 ft, action stage Feb 25, 1929: 13.00 ft, action stage Mar 6, 1929: 17.00 ft, moderate flooding Mar 10, 1929: 17.30 ft, moderate flooding Mar 22, 1929: 13.90 ft, action stage Mar 29, 1929: 14.10 ft, minor flooding May 9, 1929: 14.80 ft, minor flooding May 24, 1929: 12.00 ft, action stage Jun 14, 1929: 12.10 ft, action stage Jun 30, 1929: 11.10 ft, action stage Jul 28, 1929: 11.00 ft, action stage Oct 7, 1929: 19.40 ft, major flooding; 14,600 cubic feet per second Nov 13, 1929: 11.10 ft, action stage Dec 11, 1929: 11.90 ft, action stage Dec 27, 1929: 11.80 ft, action stage Jan 24, 1930: 12.00 ft, action stage Aug 31, 1931: 10.40 ft, below flood stage; 2,330 cubic feet per second Jan 15, 1932: 13.70 ft, action stage; 4,780 cubic feet per second Mar 14, 1932: 11.50 ft, action stage Oct 24, 1932: 15.30 ft, minor flooding; 6,830 cubic feet per second Dec 22, 1932: 12.90 ft, action stage Jan 5, 1933: 11.40 ft, action stage Feb 20, 1933: 11.50 ft, action stage Feb 28, 1933: 11.50 ft, action stage Jun 13, 1934: 10.30 ft, below flood stage; 2,300 cubic feet per second Sep 14, 1935: 12.60 ft, action stage; 3,750 cubic feet per second Jan 15, 1936: 13.70 ft, action stage Jan 27, 1936: 13.30 ft, action stage Feb 11, 1936: 14.00 ft, minor flooding Feb 21, 1936: 12.50 ft, action stage Mar 19, 1936: 12.10 ft, action stage Mar 25, 1936: 11.90 ft, action stage Apr 5, 1936: 13.60 ft, action stage Apr 12, 1936: 18.66 ft, major flooding; 14,400 cubic feet per second Dec 19, 1936: 11.20 ft, action stage Feb 4, 1937: 13.71 ft, action stage; 4,820 cubic feet per second Feb 18, 1937: 11.40 ft, action stage May 2, 1937: 14.09 ft, minor flooding; 5,200 cubic feet per second Apr 12, 1938: 13.60 ft, action stage Apr 16, 1938: 12.20 ft, action stage Aug 2, 1938: 13.72 ft, action stage; 4,880 cubic feet per second Feb 17, 1939: 11.20 ft, action stage Feb 24, 1939: 11.70 ft, action stage Mar 4, 1939: 17.39 ft, moderate flooding; 11,200 cubic feet per second Aug 18, 1940: 9.43 ft, below flood stage; 1,980 cubic feet per second Jul 18, 1941: 12.22 ft, action stage; 3,420 cubic feet per second Mar 11, 1942: 13.90 ft, action stage Mar 17, 1942: 14.30 ft, minor flooding Mar 29, 1942: 12.50 ft, action stage Apr 18, 1942: 11.40 ft, action stage May 28, 1942: 14.39 ft, minor flooding; 5,640 cubic feet per second Jul 27, 1942: 11.20 ft, action stage Jan 26, 1943: 13.48 ft, action stage; 4,600 cubic feet per second Mar 14, 1943: 12.60 ft, action stage Mar 29, 1943: 12.90 ft, action stage Feb 23, 1944: 12.90 ft, action stage Mar 27, 1944: 16.42 ft, moderate flooding; 9,050 cubic feet per second Apr 20, 1944: 11.10 ft, action stage May 1, 1944: 11.90 ft, action stage Sep 22, 1945: 21.21 ft, major flooding; 25,000 cubic feet per second Jan 3, 1946: 13.10 ft, action stage; 4,200 cubic feet per second Jan 25, 1946: 11.20 ft, action stage Mar 17, 1947: 11.00 ft, action stage Apr 16, 1947: 13.57 ft, action stage; 4,700 cubic feet per second Apr 23, 1947: 12.20 ft, action stage Nov 16, 1947: 12.40 ft, action stage Feb 16, 1948: 14.67 ft, minor flooding; 6,180 cubic feet per second Mar 14, 1948: 14.40 ft, minor flooding Mar 25, 1948: 11.80 ft, action stage Apr 8, 1948: 12.00 ft, action stage Dec 1, 1948: 14.60 ft, minor flooding Dec 5, 1948: 15.92 ft, minor flooding; 8,320 cubic feet per second Jan 7, 1949: 11.90 ft, action stage Jan 13, 1949: 11.70 ft, action stage Feb 12, 1949: 11.50 ft, action stage Feb 27, 1949: 12.00 ft, action stage May 7, 1949: 14.70 ft, minor flooding Aug 30, 1949: 11.50 ft, action stage Sep 4, 1949: 12.80 ft, action stage Dec 24, 1949: 8.43 ft, below flood stage; 1,630 cubic feet per second Mar 30, 1950: 8.10 ft, below flood stage Apr 17, 1951: 9.81 ft, below flood stage; 2,120 cubic feet per second Mar 11, 1952: 14.60 ft, minor flooding Apr 2, 1952: 11.80 ft, action stage Sep 6, 1952: 16.76 ft, moderate flooding; 10,900 cubic feet per second Feb 23, 1953: 12.35 ft, action stage; 3,920 cubic feet per second Mar 2, 1953: 11.50 ft, action stage Mar 20, 1953: 12.20 ft, action stage Jan 25, 1954: 11.80 ft, action stage Apr 8, 1954: 12.26 ft, action stage Apr 22, 1955: 12.80 ft, action stage; 3,920 cubic feet per second Mar 25, 1956: 11.41 ft, action stage; 2,840 cubic feet per second May 21, 1957: 10.09 ft, below flood stage; 2,260 cubic feet per second Nov 28, 1957: 11.60 ft, action stage Dec 2, 1957: 12.30 ft, action stage Feb 1, 1958: 13.53 ft, action stage; 5,290 cubic feet per second Mar 7, 1958: 11.47 ft, action stage Apr 3, 1958: 12.18 ft, action stage Apr 18, 1958: 12.70 ft, action stage Apr 24, 1958: 12.00 ft, action stage May 14, 1958: 12.00 ft, action stage Feb 13, 1959: 12.74 ft, action stage; 3,840 cubic feet per second Mar 8, 1959: 12.06 ft, action stage Mar 14, 1959: 12.40 ft, action stage Apr 20, 1959: 12.54 ft, action stage Oct 7, 1959: 13.50 ft, action stage Oct 18, 1959: 12.73 ft, action stage Oct 23, 1959: 13.24 ft, action stage Nov 1, 1959: 11.65 ft, action stage Dec 20, 1959: 11.71 ft, action stage Jan 14, 1960: 13.28 ft, action stage Feb 7, 1960: 14.70 ft, minor flooding Feb 12, 1960: 14.29 ft, minor flooding Feb 20, 1960: 15.39 ft, minor flooding Mar 5, 1960: 12.18 ft, action stage Mar 24, 1960: 11.77 ft, action stage Apr 10, 1960: 16.31 ft, moderate flooding Mar 3, 1961: 15.74 ft, minor flooding; 7,600 cubic feet per second Mar 29, 1961: 12.28 ft, action stage Apr 8, 1961: 12.71 ft, action stage Apr 19, 1961: 13.67 ft, action stage May 18, 1961: 12.44 ft, action stage Jan 15, 1962: 12.19 ft, action stage Mar 2, 1962: 13.98 ft, action stage Mar 18, 1962: 15.83 ft, minor flooding; 7,800 cubic feet per second Apr 7, 1962: 11.07 ft, action stage Jan 27, 1963: 15.01 ft, minor flooding; 6,400 cubic feet per second Feb 28, 1963: 11.08 ft, action stage Mar 20, 1963: 13.00 ft, action stage Jan 18, 1964: 12.72 ft, action stage Feb 2, 1964: 12.90 ft, action stage Feb 25, 1964: 14.60 ft, minor flooding Mar 22, 1964: 15.75 ft, minor flooding; 7,800 cubic feet per second Mar 28, 1964: 12.40 ft, action stage Apr 2, 1964: 12.50 ft, action stage Apr 15, 1964: 14.60 ft, minor flooding Jul 28, 1964: 11.45 ft, action stage Sep 3, 1964: 12.96 ft, action stage Sep 7, 1964: 11.22 ft, action stage Sep 21, 1964: 11.19 ft, action stage Oct 2, 1964: 11.29 ft, action stage Oct 7, 1964: 15.09 ft, minor flooding Oct 12, 1964: 14.75 ft, minor flooding Oct 17, 1964: 13.16 ft, action stage Oct 23, 1964: 15.87 ft, minor flooding; 7,940 cubic feet per second Jan 2, 1965: 14.79 ft, minor flooding Feb 21, 1965: 13.25 ft, action stage Mar 26, 1965: 13.81 ft, action stage Apr 1, 1965: 13.64 ft, action stage Jun 19, 1965: 12.20 ft, action stage Aug 5, 1965: 12.50 ft, action stage Mar 8, 1966: 15.38 ft, minor flooding; 7,020 cubic feet per second Aug 31, 1967: 13.36 ft, action stage Sep 17, 1967: 14.08 ft, minor flooding; 5,570 cubic feet per second Jan 18, 1968: 14.26 ft, minor flooding; 5,420 cubic feet per second Jul 21, 1968: 13.55 ft, action stage Feb 28, 1969: 12.30 ft, action stage Apr 26, 1969: 12.52 ft, action stage; 3,790 cubic feet per second Jun 24, 1969: 11.40 ft, action stage Mar 31, 1970: 12.76 ft, action stage; 3,980 cubic feet per second Feb 16, 1971: 12.80 ft, action stage Mar 5, 1971: 17.46 ft, moderate flooding; 11,700 cubic feet per second Mar 28, 1971: 11.30 ft, action stage Apr 7, 1971: 12.00 ft, action stage Aug 24, 1971: 14.82 ft, minor flooding Jan 19, 1972: 14.21 ft, minor flooding; 5,360 cubic feet per second Feb 10, 1972: 13.10 ft, action stage Dec 23, 1972: 13.70 ft, action stage Dec 30, 1972: 11.95 ft, action stage Feb 5, 1973: 16.68 ft, moderate flooding; 9,710 cubic feet per second Feb 9, 1973: 16.15 ft, moderate flooding Feb 17, 1973: 14.25 ft, minor flooding Mar 11, 1973: 12.20 ft, action stage Apr 7, 1973: 16.45 ft, moderate flooding Apr 14, 1973: 13.80 ft, action stage Jun 17, 1973: 12.35 ft, action stage Feb 18, 1974: 11.50 ft, action stage Aug 8, 1974: 11.60 ft, action stage Aug 15, 1974: 12.18 ft, action stage; 3,550 cubic feet per second Jan 21, 1975: 13.45 ft, action stage Feb 2, 1975: 13.95 ft, action stage Feb 13, 1975: 11.80 ft, action stage Feb 22, 1975: 12.00 ft, action stage Feb 26, 1975: 13.30 ft, action stage Mar 21, 1975: 14.60 ft, minor flooding Apr 7, 1975: 11.90 ft, action stage Jul 20, 1975: 16.69 ft, moderate flooding; 9,740 cubic feet per second Jan 10, 1976: 11.40 ft, action stage Mar 24, 1976: 11.25 ft, action stage Jun 22, 1976: 11.75 ft, action stage Jun 28, 1976: 13.37 ft, action stage; 4,500 cubic feet per second Jul 8, 1976: 11.40 ft, action stage Jul 13, 1976: 11.10 ft, action stage Dec 20, 1976: 12.70 ft, action stage Jan 18, 1977: 13.00 ft, action stage Mar 15, 1977: 12.60 ft, action stage Mar 20, 1977: 13.81 ft, action stage; 4,920 cubic feet per second Mar 28, 1977: 13.57 ft, action stage Jan 26, 1978: 16.09 ft, moderate flooding; 8,380 cubic feet per second Feb 1, 1978: 14.75 ft, minor flooding Mar 18, 1978: 12.40 ft, action stage Jan 30, 1979: 11.60 ft, action stage Mar 2, 1979: 17.45 ft, moderate flooding May 4, 1979: 11.20 ft, action stage May 18, 1979: 11.30 ft, action stage Sep 8, 1979: 12.10 ft, action stage Sep 12, 1979: 14.30 ft, minor flooding Mar 16, 1980: 13.10 ft, action stage Mar 22, 1980: 13.30 ft, action stage Mar 28, 1980: 14.20 ft, minor flooding Apr 3, 1980: 16.69 ft, moderate flooding; 9,380 cubic feet per second Feb 21, 1981: 10.23 ft, below flood stage; 2,430 cubic feet per second Jan 10, 1982: 15.28 ft, minor flooding; 6,850 cubic feet per second Feb 12, 1982: 11.40 ft, action stage Feb 19, 1982: 11.95 ft, action stage Feb 25, 1982: 11.00 ft, action stage Mar 9, 1982: 11.30 ft, action stage Feb 17, 1983: 12.60 ft, action stage Feb 22, 1983: 13.40 ft, action stage Mar 3, 1983: 12.40 ft, action stage Mar 14, 1983: 11.78 ft, action stage Mar 20, 1983: 16.45 ft, moderate flooding Mar 24, 1983: 17.19 ft, moderate flooding; 10,400 cubic feet per second Apr 12, 1983: 14.19 ft, minor flooding Apr 16, 1983: 14.11 ft, minor flooding Dec 15, 1983: 13.31 ft, action stage Dec 20, 1983: 12.00 ft, action stage Jan 28, 1984: 11.55 ft, action stage Feb 22, 1984: 13.28 ft, action stage Mar 3, 1984: 11.11 ft, action stage Mar 7, 1984: 11.88 ft, action stage Mar 15, 1984: 11.07 ft, action stage Apr 1, 1984: 11.63 ft, action stage Apr 5, 1984: 13.54 ft, action stage; 4,670 cubic feet per second Apr 12, 1984: 13.11 ft, action stage Jul 30, 1984: 12.12 ft, action stage Feb 11, 1985: 11.92 ft, action stage; 3,550 cubic feet per second Nov 30, 1985: 12.57 ft, action stage; 3,950 cubic feet per second Mar 24, 1986: 10.36 ft, below flood stage Jan 27, 1987: 15.50 ft, minor flooding; 7,320 cubic feet per second Mar 7, 1987: 17.07 ft, moderate flooding; 10,200 cubic feet per second Sep 11, 1987: 12.25 ft, action stage; 3,790 cubic feet per second Jan 29, 1988: 10.02 ft, below flood stage; 2,410 cubic feet per second Mar 12, 1989: 12.29 ft, action stage; 3,820 cubic feet per second Mar 31, 1989: 14.39 ft, minor flooding; 5,820 cubic feet per second Apr 16, 1989: 11.01 ft, action stage; 2,960 cubic feet per second Apr 23, 1989: 12.89 ft, action stage; 4,310 cubic feet per second May 10, 1989: 11.46 ft, action stage; 3,240 cubic feet per second Oct 5, 1989: 14.02 ft, minor flooding; 4,960 cubic feet per second Oct 11, 1989: 15.31 ft, minor flooding; 6,520 cubic feet per second Dec 19, 1989: 11.92 ft, action stage; 3,250 cubic feet per second Mar 1, 1990: 11.55 ft, action stage; 3,000 cubic feet per second Oct 18, 1990: 18.87 ft, major flooding; 13,900 cubic feet per second Oct 31, 1990: 15.20 ft, minor flooding; 6,270 cubic feet per second Feb 1, 1991: 11.20 ft, action stage; 2,850 cubic feet per second Mar 7, 1991: 13.59 ft, action stage; 4,670 cubic feet per second Mar 11, 1991: 14.79 ft, minor flooding; 5,790 cubic feet per second Apr 8, 1991: 12.15 ft, action stage; 3,510 cubic feet per second May 15, 1991: 13.70 ft, action stage; 4,760 cubic feet per second Aug 4, 1991: 11.23 ft, action stage; 2,870 cubic feet per second Aug 13, 1991: 11.40 ft, action stage; 2,980 cubic feet per second Aug 24, 1992: 12.57 ft, action stage; 3,830 cubic feet per second Nov 30, 1992: 11.94 ft, action stage; 3,360 cubic feet per second Dec 5, 1992: 13.45 ft, action stage; 4,550 cubic feet per second Dec 31, 1992: 11.32 ft, action stage; 2,930 cubic feet per second Jan 15, 1993: 16.44 ft, moderate flooding; 8,130 cubic feet per second Jan 30, 1993: 12.48 ft, action stage; 3,760 cubic feet per second Mar 13, 1993: 12.04 ft, action stage; 3,430 cubic feet per second Mar 22, 1993: 12.33 ft, action stage; 3,640 cubic feet per second Apr 15, 1993: 13.68 ft, action stage; 4,750 cubic feet per second Mar 5, 1994: 12.63 ft, action stage; 3,890 cubic feet per second Mar 12, 1994: 11.97 ft, action stage; 3,480 cubic feet per second Dec 25, 1994: 18.35 ft, major flooding; 12,300 cubic feet per second Dec 30, 1994: 16.62 ft, moderate flooding; 8,430 cubic feet per second Jan 8, 1995: 12.94 ft, action stage Jan 17, 1995: 13.82 ft, action stage; 4,870 cubic feet per second Jan 24, 1995: 12.72 ft, action stage; 3,940 cubic feet per second Feb 13, 1995: 11.19 ft, action stage; 2,850 cubic feet per second Feb 25, 1995: 15.41 ft, minor flooding; 6,560 cubic feet per second Mar 10, 1995: 12.77 ft, action stage; 3,980 cubic feet per second Mar 16, 1996: 11.20 ft, action stage; 2,850 cubic feet per second Feb 23, 1997: 13.63 ft, action stage; 4,700 cubic feet per second Aug 1, 1997: 13.01 ft, action stage; 4,180 cubic feet per second Jan 2, 1998: 12.17 ft, action stage; 3,700 cubic feet per second Jan 14, 1998: 15.79 ft, minor flooding; 7,110 cubic feet per second Jan 31, 1998: 14.44 ft, minor flooding; 5,490 cubic feet per second Feb 6, 1998: 15.48 ft, minor flooding; 6,660 cubic feet per second Feb 11, 1998: 15.68 ft, minor flooding; 6,950 cubic feet per second Feb 20, 1998: 14.19 ft, minor flooding; 5,280 cubic feet per second Feb 24, 1998: 15.19 ft, minor flooding; 6,260 cubic feet per second Mar 3, 1998: 12.16 ft, action stage; 3,700 cubic feet per second Mar 10, 1998: 13.30 ft, action stage; 4,540 cubic feet per second Mar 16, 1998: 15.16 ft, minor flooding; 6,210 cubic feet per second Mar 25, 1998: 16.76 ft, moderate flooding; 8,670 cubic feet per second Apr 17, 1998: 12.81 ft, action stage; 4,020 cubic feet per second Apr 25, 1998: 12.19 ft, action stage; 3,540 cubic feet per second Jan 26, 1999: 11.63 ft, action stage; 3,150 cubic feet per second Feb 2, 1999: 11.60 ft, action stage May 4, 1999: 12.18 ft, action stage; 3,530 cubic feet per second May 9, 1999: 11.51 ft, action stage; 3,060 cubic feet per second Feb 3, 2000: 12.59 ft, action stage; 3,840 cubic feet per second Mar 23, 2001: 9.81 ft, below flood stage; 2,210 cubic feet per second Sep 2, 2002: 8.11 ft, below flood stage; 1,450 cubic feet per second Nov 19, 2002: 8.39 ft, below flood stage; 1,550 cubic feet per second Mar 9, 2003: 12.22 ft, action stage; 3,680 cubic feet per second Mar 14, 2003: 13.59 ft, action stage; 4,630 cubic feet per second Mar 27, 2003: 14.86 ft, minor flooding; 5,860 cubic feet per second Apr 17, 2003: 15.93 ft, minor flooding; 7,320 cubic feet per second Sep 3, 2004: 13.33 ft, action stage; 4,500 cubic feet per second Sep 11, 2004: 15.96 ft, minor flooding; 7,370 cubic feet per second Sep 15, 2004: 15.26 ft, minor flooding; 6,350 cubic feet per second Oct 5, 2004: 13.66 ft, action stage; 4,720 cubic feet per second Apr 22, 2005: 9.61 ft, below flood stage; 2,030 cubic feet per second Jun 22, 2006: 13.09 ft, action stage; 4,700 cubic feet per second Nov 30, 2006: 14.32 ft, minor flooding; 5,300 cubic feet per second Mar 9, 2007: 14.08 ft, minor flooding; 5,050 cubic feet per second Apr 14, 2008: 10.57 ft, below flood stage; 2,610 cubic feet per second Mar 10, 2009: 11.70 ft, action stage; 3,330 cubic feet per second Dec 28, 2009: 11.51 ft, action stage; 3,055 cubic feet per second Jan 2, 2010: 13.51 ft, action stage; 4,750 cubic feet per second Jan 26, 2010: 11.93 ft, action stage; 3,470 cubic feet per second Feb 13, 2010: 13.56 ft, action stage; 4,700 cubic feet per second Feb 13, 2011: 8.38 ft, below flood stage; 1,710 cubic feet per second Aug 28, 2012: 7.60 ft, below flood stage; 1,410 cubic feet per second Jul 15, 2013: 12.73 ft, action stage; 3,950 cubic feet per second Jul 20, 2013: 11.12 ft, action stage; 2,800 cubic feet per second Jan 19, 2014: 12.92 ft, action stage; 4,070 cubic feet per second Mar 15, 2014: 13.19 ft, action stage; 4,320 cubic feet per second Jan 1, 2015: 12.38 ft, action stage; 3,630 cubic feet per second Jan 20, 2015: 12.97 ft, action stage; 3,950 cubic feet per second Mar 1, 2015: 11.33 ft, action stage; 2,940 cubic feet per second Mar 6, 2015: 11.33 ft, action stage; 2,940 cubic feet per second Oct 6, 2015: 19.70 ft, major flooding; 16,800 cubic feet per second Nov 9, 2015: 14.50 ft, minor flooding; 5,480 cubic feet per second Nov 18, 2015: 12.28 ft, action stage; 3,450 cubic feet per second Nov 26, 2015: 14.89 ft, minor flooding; 5,920 cubic feet per second Dec 29, 2015: 16.25 ft, moderate flooding; 7,869 cubic feet per second Jan 6, 2016: 15.45 ft, minor flooding; 6,520 cubic feet per second Feb 7, 2016: 12.69 ft, action stage; 3,750 cubic feet per second Oct 10, 2016: 17.76 ft, moderate flooding; 9,670 cubic feet per second Jan 11, 2017: 11.43 ft, action stage; 2,780 cubic feet per second Apr 28, 2017: 11.32 ft, action stage; 2,760 cubic feet per second May 2, 2017: 12.90 ft, action stage; 3,880 cubic feet per second Sep 22, 2018: 16.81 ft, moderate flooding; 8,630 cubic feet per second Oct 17, 2018: 15.41 ft, minor flooding; 7,000 cubic feet per second Nov 19, 2018: 14.87 ft, minor flooding; 6,270 cubic feet per second Dec 12, 2018: 12.50 ft, action stage; 3,710 cubic feet per second Dec 16, 2018: 15.78 ft, minor flooding; 7,120 cubic feet per second Dec 22, 2018: 15.00 ft, minor flooding; 6,140 cubic feet per second Dec 27, 2018: 13.64 ft, action stage; 4,690 cubic feet per second Jan 6, 2019: 13.24 ft, action stage; 4,330 cubic feet per second Jan 28, 2019: 11.28 ft, action stage; 2,870 cubic feet per second Feb 1, 2019: 11.55 ft, action stage; 3,040 cubic feet per second Mar 11, 2019: 12.57 ft, action stage; 3,950 cubic feet per second Jan 21, 2020: 12.65 ft, action stage; 3,830 cubic feet per second Feb 12, 2020: 16.78 ft, moderate flooding; 8,590 cubic feet per second Feb 22, 2020: 11.08 ft, action stage; 2,870 cubic feet per second Feb 28, 2020: 11.05 ft, action stage; 2,850 cubic feet per second Mar 13, 2020: 11.11 ft, action stage; 2,890 cubic feet per second Apr 1, 2020: 11.55 ft, action stage; 3,180 cubic feet per second May 26, 2020: 16.90 ft, moderate flooding; 8,780 cubic feet per second Jun 2, 2020: 17.71 ft, moderate flooding; 10,200 cubic feet per second Sep 20, 2020: 14.51 ft, minor flooding; 5,580 cubic feet per second Oct 3, 2020: 11.10 ft, action stage; 2,760 cubic feet per second Nov 15, 2020: 11.98 ft, action stage; 3,330 cubic feet per second Jan 9, 2021: 15.59 ft, minor flooding; 6,870 cubic feet per second Jan 16, 2021: 12.32 ft, action stage; 3,580 cubic feet per second Feb 21, 2021: 17.95 ft, moderate flooding; 10,800 cubic feet per second Mar 20, 2022: 11.96 ft, action stage; 3,320 cubic feet per second Feb 20, 2023: 11.78 ft, action stage; 3,090 cubic feet per second Mar 29, 2023: 12.85 ft, action stage; 3,870 cubic feet per second Apr 16, 2023: 11.24 ft, action stage; 2,750 cubic feet per second Jan 17, 2024: 11.51 ft, action stage; 3,010 cubic feet per second Mar 9, 2024: 13.18 ft, action stage; 4,270 cubic feet per second Aug 9, 2024: 15.58 ft, minor flooding; 6,860 cubic feet per second Aug 14, 2024: 15.74 ft, minor flooding; 7,070 cubic feet per second Mar 25, 2025: 10.06 ft, below flood stage; 2,240 cubic feet per second Oct 14, 2025: 9.46 ft, below flood stage; 1,880 cubic feet per second Highest, 21.21 ft, Sep 22, 1945 1900 1920 1940 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Lynches River at Effingham 1890s: 17 17 1900s: 13 1910s: 7 1920s: 17 1930s: 5 1940s: 9 1950s: 2 1960s: 17 1970s: 13 1980s: 12 1990s: 15 2000s: 6 2010s: 11 2020s: 8 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable. 05 Other gauges in Florence County Florence County: every hazard · River floods across the country · South Carolina
NOAA National Water Prediction Service, gauge EFFS1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.