Historic Crests
(1) 30.30 ft on 03/30/1945
(2) 30.08 ft on 05/14/1968
(3) 29.20 ft on 05/21/1927
(4) 28.97 ft on 02/19/1938
(5) 28.87 ft on 04/17/1939
(6) 28.30 ft on 05/15/1923
(7) 28.15 ft on 01/27/1949
(8) 28.02 ft on 01/31/1969
(9) 27.90 ft on 05/12/1920
(10) 27.65 ft on 05/03/1958
(11) 27.23 ft on 05/20/1990
(12) 27.02 ft on 06/08/1974
(13) 26.97 ft on 05/06/1935
(14) 26.75 ft on 04/09/1942
(15) 26.72 ft on 01/05/1932
(16) 26.30 ft on 08/22/1915
(17) 26.20 ft on 04/29/1914
(18) 26.20 ft on 07/03/1951
(19) 26.03 ft on 01/22/1937
(20) 26.00 ft on 05/26/1966
(21) 25.97 ft on 12/04/1982
(22) 25.92 ft on 02/13/1950
(23) 25.90 ft on 05/02/1944
(24) 25.89 ft on 09/04/2008
(25) 25.52 ft on 04/05/2008
(26) 25.40 ft on 01/10/1930
(27) 25.15 ft on 12/04/1952
(28) 25.13 ft on 04/24/1964
(29) 24.90 ft on 04/24/1973
(30) 24.90 ft on 03/09/1990
(31) 24.81 ft on 05/07/2009
(32) 24.50 ft on 12/27/1987
(33) 24.20 ft on 04/04/1957
(34) 24.20 ft on 05/07/1961
(35) 23.90 ft on 03/21/1955
(36) 23.60 ft on 04/06/1986
(37) 23.56 ft on 05/07/1967
(38) 23.56 ft on 12/04/1993
(39) 23.30 ft on 01/15/2007
(40) 23.30 ft on 05/03/1954
(41) 22.69 ft on 02/17/2001
(42) 22.53 ft on 05/12/2015
(43) 22.47 ft on 12/29/2015
(44) 22.47 ft on 12/29/2015
(45) 22.25 ft on 12/18/2001
(46) 22.22 ft on 05/01/2017
(47) 21.65 ft on 02/28/1962
(48) 21.50 ft on 04/24/1985
(49) 21.50 ft on 11/20/1988
(50) 21.40 ft on 03/04/1977
(51) 21.10 ft on 05/03/1984
(52) 21.02 ft on 11/22/2011
(53) 21.02 ft on 04/10/2008
(54) 20.90 ft on 12/17/1959
(55) 20.60 ft on 02/18/1956
(56) 20.54 ft on 05/04/2017
(57) 19.94 ft on 04/27/2011
(58) 19.90 ft on 05/04/1979
(59) 19.55 ft on 03/14/2015
(60) 19.18 ft on 07/17/1963
(61) 19.10 ft on 04/14/1991
(62) 18.90 ft on 02/18/2008
(63) 18.83 ft on 09/17/2009
(64) 18.70 ft on 04/11/1995
(65) 18.49 ft on 03/21/2002
(66) 18.46 ft on 12/16/1992
(67) 17.93 ft on 11/06/1994
(68) 17.80 ft on 05/20/2015
(69) 17.58 ft on 06/18/2003
(70) 17.49 ft on 05/30/2015

(P): Preliminary values subject to further review.