Historic Crests
(1) 21.21 ft on 09/22/1945
(2) 20.00 ft on 08/30/1908
(3) 19.73 ft on 10/06/2015
(4) 19.40 ft on 09/24/1928
(5) 19.25 ft on 10/07/1929
(6) 18.85 ft on 10/18/1990
(7) 18.70 ft on 07/20/1916
(8) 18.66 ft on 04/12/1936
(9) 18.28 ft on 12/25/1994
(10) 17.76 ft on 10/10/2016
(11) 17.71 ft on 06/02/2020
(12) 17.50 ft on 01/24/1892
(13) 17.45 ft on 03/02/1979
(14) 17.44 ft on 03/05/1971
(15) 17.39 ft on 03/04/1939
(16) 17.30 ft on 03/12/1922
(17) 17.30 ft on 03/10/1929
(18) 17.25 ft on 03/24/1983
(19) 17.20 ft on 06/22/1901
(20) 17.20 ft on 01/24/1925
(21) 17.20 ft on 02/12/1899
(22) 17.15 ft on 05/30/2020
(23) 17.05 ft on 03/07/1987
(24) 16.90 ft on 05/26/2020
(25) 16.90 ft on 02/14/1903
(26) 16.81 ft on 09/22/2018
(27) 16.78 ft on 02/12/2020
(28) 16.76 ft on 09/06/1952
(29) 16.70 ft on 04/04/1980
(30) 16.69 ft on 07/20/1975
(31) 16.68 ft on 02/05/1973
(32) 16.63 ft on 03/25/1998
(33) 16.60 ft on 02/15/1903
(34) 16.60 ft on 04/25/1900
(35) 16.50 ft on 02/21/1912
(36) 16.50 ft on 10/15/1894
(37) 16.50 ft on 02/16/1921
(38) 16.42 ft on 03/26/1944
(39) 16.42 ft on 01/16/1993
(40) 16.31 ft on 04/10/1960
(41) 16.30 ft on 01/15/1895
(42) 16.28 ft on 12/29/2015
(43) 16.20 ft on 08/11/1894
(44) 16.09 ft on 01/26/1978
(45) 16.00 ft on 07/29/1919
(46) 16.00 ft on 09/04/1893
(47) 15.96 ft on 09/10/2004
(48) 15.93 ft on 04/17/2003
(49) 15.92 ft on 12/05/1948
(50) 15.87 ft on 10/22/1964
(51) 15.83 ft on 03/18/1962
(52) 15.77 ft on 12/16/2018
(53) 15.75 ft on 03/22/1964
(54) 15.74 ft on 03/03/1961
(55) 15.70 ft on 07/15/1896
(56) 15.70 ft on 03/21/1913
(57) 15.68 ft on 01/14/1998
(58) 15.65 ft on 02/11/1998
(59) 15.48 ft on 01/06/2016
(60) 15.47 ft on 02/06/1998
(61) 15.41 ft on 10/17/2018
(62) 15.41 ft on 10/11/1989
(63) 15.38 ft on 03/07/1966
(64) 15.30 ft on 10/24/1932
(65) 15.28 ft on 01/10/1982
(66) 15.26 ft on 02/21/1995
(67) 15.19 ft on 02/24/1998
(68) 15.16 ft on 03/15/1998
(69) 15.01 ft on 01/27/1963
(70) 15.00 ft on 02/08/1902
(71) 14.98 ft on 12/22/2018
(72) 14.92 ft on 11/26/2015
(73) 14.86 ft on 11/19/2018
(74) 14.86 ft on 03/27/2003
(75) 14.80 ft on 09/02/1891
(76) 14.79 ft on 11/21/2018
(77) 14.79 ft on 01/02/1965
(78) 14.79 ft on 03/12/1991
(79) 14.71 ft on 05/07/1949
(80) 14.67 ft on 02/16/1948
(81) 14.53 ft on 11/09/2015
(82) 14.50 ft on 06/17/1906
(83) 14.50 ft on 12/29/1911
(84) 14.40 ft on 01/31/1998
(85) 14.40 ft on 10/06/1924
(86) 14.39 ft on 05/28/1942
(87) 14.39 ft on 03/31/1989
(88) 14.32 ft on 11/30/2006
(89) 14.31 ft on 02/09/2020
(90) 14.27 ft on 01/18/1968
(91) 14.21 ft on 01/18/1972
(92) 14.19 ft on 02/19/1998
(93) 14.09 ft on 05/02/1937
(94) 14.08 ft on 03/09/2007
(95) 14.07 ft on 09/16/1967
(96) 14.00 ft on 02/14/1897
(97) 14.00 ft on 04/18/1926
(98) 13.81 ft on 03/20/1977
(99) 13.80 ft on 08/30/1898
(100) 13.70 ft on 01/15/1932
(101) 13.70 ft on 08/02/1938
(102) 13.66 ft on 10/05/2004
(103) 13.63 ft on 02/23/1997
(104) 13.60 ft on 01/25/1915
(105) 13.60 ft on 04/16/1947
(106) 13.59 ft on 03/14/2003
(107) 13.57 ft on 03/28/1977
(108) 13.56 ft on 02/13/2010
(109) 13.51 ft on 01/02/2010
(110) 13.50 ft on 02/22/1905
(111) 13.50 ft on 10/07/1959
(112) 13.48 ft on 02/01/1958
(113) 13.45 ft on 12/05/1992
(114) 13.37 ft on 06/28/1976
(115) 13.30 ft on 01/27/1943
(116) 13.25 ft on 04/05/1984
(117) 13.24 ft on 01/06/2019
(118) 13.20 ft on 12/12/1927
(119) 13.19 ft on 03/15/2014
(120) 13.08 ft on 06/21/2006
(121) 13.00 ft on 01/18/1910
(122) 13.00 ft on 01/03/1946
(123) 12.99 ft on 01/20/2015
(124) 12.92 ft on 01/19/2014
(125) 12.90 ft on 05/02/2017
(126) 12.80 ft on 03/06/1914
(127) 12.80 ft on 04/22/1955
(128) 12.76 ft on 03/31/1970
(129) 12.73 ft on 07/15/2013
(130) 12.73 ft on 10/16/2016
(131) 12.63 ft on 03/05/1994
(132) 12.60 ft on 08/14/1904
(133) 12.60 ft on 03/24/1923
(134) 12.60 ft on 09/14/1935
(135) 12.59 ft on 02/02/2000
(136) 12.57 ft on 03/11/2019
(137) 12.57 ft on 08/24/1992
(138) 12.50 ft on 04/26/1969
(139) 12.46 ft on 11/30/1985
(140) 12.30 ft on 02/24/1953
(141) 12.30 ft on 12/02/1957
(142) 12.26 ft on 04/08/1954
(143) 12.20 ft on 06/12/1909
(144) 12.18 ft on 05/03/1999
(145) 12.18 ft on 08/15/1974
(146) 12.10 ft on 07/18/1941
(147) 12.00 ft on 06/18/1917
(148) 12.00 ft on 05/18/1918
(149) 12.00 ft on 01/24/1930
(150) 11.92 ft on 02/11/1985
(151) 11.90 ft on 03/22/1920
(152) 11.70 ft on 03/10/2009
(153) 11.51 ft on 12/28/2009
(154) 11.50 ft on 02/20/1933
(155) 11.42 ft on 03/25/1956
(156) 11.20 ft on 03/16/1996
(157) 10.57 ft on 04/14/2008
(158) 10.40 ft on 08/31/1931
(159) 10.36 ft on 03/24/1986
(160) 10.30 ft on 06/13/1934
(161) 10.10 ft on 02/21/1981
(162) 10.01 ft on 01/29/1988
(163) 10.00 ft on 07/05/1907
(164) 9.81 ft on 03/23/2001
(165) 9.80 ft on 04/17/1951
(166) 9.61 ft on 04/22/2005
(167) 9.44 ft on 09/17/2018
(168) 9.43 ft on 08/18/1940
(169) 8.38 ft on 02/13/2011
(170) 8.11 ft on 09/01/2002
(171) 8.10 ft on 03/30/1950
(172) 7.60 ft on 08/28/2012

(P): Preliminary values subject to further review.