Historic Crests
(1) 29.75 ft on 08/03/1875
(2) 28.59 ft on 06/09/2008
(3) 27.50 ft on 03/27/1913
(4) 26.89 ft on 01/08/2005
(5) 25.87 ft on 11/18/1993
(6) 25.36 ft on 01/02/1991
(7) 24.34 ft on 04/23/2013
(8) 24.22 ft on 05/17/2002
(9) 24.19 ft on 05/21/1943
(10) 23.71 ft on 01/07/1950
(11) 23.51 ft on 01/29/1999
(12) 23.51 ft on 01/26/1999
(13) 23.51 ft on 01/18/1937
(14) 23.50 ft on 03/05/1897
(15) 23.47 ft on 05/11/1961
(16) 23.44 ft on 01/16/2005
(17) 23.43 ft on 05/27/1968
(18) 23.40 ft on 02/02/1969
(19) 23.25 ft on 05/08/2017 (P)
(20) 23.10 ft on 01/15/1930
(21) 23.10 ft on 04/07/2018 (P)
(22) 23.02 ft on 05/17/1933
(23) 23.02 ft on 04/24/2011
(24) 22.93 ft on 09/06/2003
(25) 22.82 ft on 01/08/2004
(26) 22.78 ft on 05/20/1990
(27) 22.70 ft on 06/19/1998
(28) 22.58 ft on 03/13/2006
(29) 22.57 ft on 03/09/2011
(30) 22.53 ft on 05/02/1996
(31) 22.53 ft on 01/18/2007
(32) 22.46 ft on 01/17/2013
(33) 22.42 ft on 04/25/1964
(34) 22.37 ft on 03/22/2008
(35) 22.22 ft on 03/08/1963
(36) 22.09 ft on 07/03/1957
(37) 21.97 ft on 04/14/1944
(38) 21.97 ft on 06/21/1945
(39) 21.82 ft on 02/27/1985
(40) 21.78 ft on 02/11/2019
(41) 21.69 ft on 04/20/1939
(42) 21.67 ft on 12/25/2013
(43) 21.67 ft on 08/02/1979
(44) 21.64 ft on 02/16/1950
(45) 21.57 ft on 01/24/1949
(46) 21.51 ft on 03/18/1978
(47) 21.40 ft on 05/15/1943
(48) 21.37 ft on 12/23/1957
(49) 21.36 ft on 01/15/2020 (P)
(50) 21.36 ft on 04/04/1938
(51) 21.30 ft on 01/29/1950
(52) 21.27 ft on 02/27/1975
(53) 21.22 ft on 05/25/1957
(54) 21.21 ft on 04/08/1957
(55) 21.08 ft on 04/07/2014
(56) 21.02 ft on 12/13/1966
(57) 21.00 ft on 06/16/1958
(58) 20.97 ft on 04/12/1938
(59) 20.90 ft on 03/31/1948
(60) 20.80 ft on 02/10/2008
(61) 20.76 ft on 05/12/1996
(62) 20.74 ft on 12/29/1982
(63) 20.56 ft on 04/29/1961
(64) 20.44 ft on 03/16/1939
(65) 20.41 ft on 11/24/1985
(66) 20.35 ft on 07/15/2003
(67) 20.33 ft on 02/28/2018 (P)
(68) 20.30 ft on 03/24/1933
(69) 20.26 ft on 05/17/2009
(70) 20.23 ft on 01/25/1959
(71) 20.20 ft on 01/01/2016 (P)
(72) 20.18 ft on 06/02/1956
(73) 20.14 ft on 05/22/1995
(74) 20.12 ft on 03/14/1964
(75) 20.11 ft on 03/03/1997
(76) 20.11 ft on 04/14/1994
(77) 20.10 ft on 05/30/1981
(78) 20.07 ft on 02/14/1959
(79) 20.00 ft on 04/05/1945
(80) 19.97 ft on 11/17/1992
(81) 19.91 ft on 01/22/1932
(82) 19.91 ft on 04/21/1992
(83) 19.85 ft on 01/09/1949
(84) 19.80 ft on 03/18/1938
(85) 19.72 ft on 05/22/1929
(86) 19.66 ft on 05/07/1996
(87) 19.64 ft on 02/25/1971
(88) 19.63 ft on 06/26/1960
(89) 19.60 ft on 05/10/1996
(90) 19.53 ft on 02/15/2009
(91) 19.46 ft on 07/18/2015
(92) 19.38 ft on 04/13/1948
(93) 19.34 ft on 07/07/1938
(94) 19.34 ft on 04/21/1940
(95) 19.23 ft on 06/20/2019
(96) 19.17 ft on 04/13/1942
(97) 19.15 ft on 05/07/1935
(98) 19.14 ft on 02/19/1949
(99) 19.10 ft on 04/27/1944
(100) 19.07 ft on 04/25/1984
(101) 18.94 ft on 02/03/1939
(102) 18.92 ft on 12/22/1937
(103) 18.79 ft on 05/31/1996
(104) 18.70 ft on 01/04/1933
(105) 18.70 ft on 01/23/1929
(106) 18.69 ft on 05/16/2003
(107) 18.69 ft on 03/21/2020 (P)
(108) 18.68 ft on 02/24/1951
(109) 18.47 ft on 07/16/2017 (P)
(110) 18.31 ft on 01/31/1994
(111) 18.31 ft on 06/03/1947
(112) 18.30 ft on 01/31/1952
(113) 18.30 ft on 09/19/1989
(114) 18.29 ft on 12/05/2006
(115) 18.21 ft on 12/31/1973
(116) 18.18 ft on 10/07/2000
(117) 18.18 ft on 03/17/1961
(118) 18.12 ft on 03/31/1950
(119) 18.10 ft on 03/25/1962
(120) 18.06 ft on 03/30/1949
(121) 18.05 ft on 04/25/1972
(122) 18.00 ft on 04/16/1998
(123) 17.97 ft on 03/07/1945
(124) 17.93 ft on 04/21/1933
(125) 17.90 ft on 03/01/1936
(126) 17.90 ft on 03/15/1952
(127) 17.82 ft on 03/20/1943
(128) 17.76 ft on 04/28/1970
(129) 17.75 ft on 03/22/1963
(130) 17.73 ft on 06/21/2021 (P)
(131) 17.72 ft on 01/08/1993
(132) 17.71 ft on 01/26/1997
(133) 17.55 ft on 06/28/2010
(134) 17.55 ft on 02/11/1942
(135) 17.54 ft on 04/10/1988
(136) 17.53 ft on 11/20/1955
(137) 17.50 ft on 03/07/1953
(138) 17.47 ft on 04/26/1996
(139) 17.43 ft on 04/24/1973
(140) 17.40 ft on 02/29/1956
(141) 17.36 ft on 04/07/1950
(142) 17.21 ft on 04/13/1929
(143) 17.20 ft on 01/22/2017 (P)
(144) 17.20 ft on 05/21/1946
(145) 17.10 ft on 12/20/1929
(146) 17.10 ft on 07/03/2015
(147) 17.04 ft on 04/13/2015
(148) 16.98 ft on 02/14/2020 (P)
(149) 16.97 ft on 02/23/1976
(150) 16.95 ft on 03/18/1997
(151) 16.95 ft on 03/17/1997
(152) 16.93 ft on 03/28/1938
(153) 16.84 ft on 08/20/1993
(154) 16.81 ft on 04/16/1952
(155) 16.80 ft on 05/21/1945
(156) 16.74 ft on 04/29/2019
(157) 16.65 ft on 03/08/1993
(158) 16.63 ft on 03/01/1930
(159) 16.52 ft on 03/01/1929
(160) 16.42 ft on 04/18/1993
(161) 16.41 ft on 02/23/1938
(162) 16.37 ft on 03/25/1952
(163) 16.33 ft on 01/29/2012
(164) 16.33 ft on 04/30/1947
(165) 16.32 ft on 06/20/2004
(166) 16.25 ft on 03/24/1998
(167) 16.24 ft on 01/25/1933
(168) 16.21 ft on 11/07/1936
(169) 16.19 ft on 03/22/2021 (P)
(170) 16.17 ft on 02/13/1965
(171) 16.07 ft on 03/15/2015
(172) 16.05 ft on 05/21/2020 (P)
(173) 16.01 ft on 12/28/1932
(174) 15.92 ft on 01/18/1951
(175) 15.91 ft on 04/14/2016 (P)
(176) 15.90 ft on 11/24/1950
(177) 15.83 ft on 05/16/1935
(178) 15.83 ft on 03/02/2021 (P)
(179) 15.83 ft on 03/02/2021 (P)
(180) 15.74 ft on 01/27/2019
(181) 15.73 ft on 05/08/1998
(182) 15.68 ft on 08/04/1958
(183) 15.66 ft on 07/08/1987
(184) 15.62 ft on 02/03/1947
(185) 15.61 ft on 02/13/1960
(186) 15.56 ft on 03/09/1938
(187) 15.54 ft on 03/09/1961
(188) 15.51 ft on 09/11/2018
(189) 15.48 ft on 01/12/2008
(190) 15.45 ft on 03/01/1962
(191) 15.37 ft on 03/21/1946
(192) 15.34 ft on 06/25/1952
(193) 15.32 ft on 04/07/1952
(194) 15.28 ft on 01/03/1937
(195) 15.27 ft on 05/05/1937
(196) 15.25 ft on 03/20/1942
(197) 15.21 ft on 06/07/1997
(198) 15.19 ft on 07/18/1962
(199) 15.15 ft on 07/07/1929
(200) 15.14 ft on 12/06/1993
(201) 14.96 ft on 04/02/2020 (P)
(202) 14.95 ft on 03/11/1995
(203) 14.91 ft on 03/29/1977
(204) 14.88 ft on 05/01/1998
(205) 14.85 ft on 02/17/1946
(206) 14.84 ft on 02/03/1937
(207) 14.80 ft on 12/27/1996
(208) 14.75 ft on 04/07/1964
(209) 14.72 ft on 09/05/1993
(210) 14.72 ft on 07/18/2021 (P)
(211) 14.71 ft on 01/05/1948
(212) 14.70 ft on 06/09/1997
(213) 14.70 ft on 11/26/1992
(214) 14.69 ft on 03/13/2019
(215) 14.64 ft on 02/11/1937
(216) 14.60 ft on 04/14/1998
(217) 14.51 ft on 04/12/1947
(218) 14.45 ft on 03/09/1944
(219) 14.39 ft on 04/06/1956
(220) 14.37 ft on 05/31/1929
(221) 14.34 ft on 05/18/1996
(222) 14.34 ft on 05/07/1929
(223) 14.30 ft on 02/06/1997
(224) 14.28 ft on 04/11/1933
(225) 14.21 ft on 03/26/1996
(226) 14.21 ft on 12/07/1951
(227) 14.20 ft on 04/03/1963
(228) 14.19 ft on 04/11/1993
(229) 13.99 ft on 04/16/1951
(230) 13.94 ft on 06/13/1996
(231) 13.89 ft on 01/26/1996
(232) 13.69 ft on 02/26/2016 (P)
(233) 13.64 ft on 02/14/1930
(234) 13.64 ft on 08/17/2016 (P)
(235) 13.60 ft on 06/04/1997
(236) 13.57 ft on 09/26/2000
(237) 13.56 ft on 11/04/2018
(238) 13.55 ft on 12/07/2014
(239) 13.37 ft on 01/25/1993
(240) 13.20 ft on 05/29/1995
(241) 13.06 ft on 06/08/1996
(242) 12.89 ft on 04/14/1955
(243) 12.80 ft on 06/18/1997
(244) 12.76 ft on 05/05/1993
(245) 12.52 ft on 01/21/1996
(246) 12.45 ft on 02/12/1966
(247) 12.30 ft on 03/29/1934
(248) 12.26 ft on 01/06/1997
(249) 12.10 ft on 11/05/1992
(250) 11.99 ft on 04/24/1995
(251) 11.98 ft on 04/22/1995
(252) 11.80 ft on 04/02/1993
(253) 11.80 ft on 06/24/1992
(254) 11.70 ft on 11/10/1996
(255) 11.68 ft on 06/28/2017 (P)
(256) 11.66 ft on 10/02/1993
(257) 11.65 ft on 09/27/1993
(258) 11.64 ft on 03/25/1993
(259) 11.63 ft on 06/11/1941
(260) 11.24 ft on 05/09/1994
(261) 11.20 ft on 06/22/1997
(262) 11.12 ft on 10/21/1993
(263) 11.11 ft on 08/08/1995
(264) 11.02 ft on 09/16/1931
(265) 10.79 ft on 05/01/1994
(266) 10.71 ft on 07/07/1993
(267) 9.75 ft on 08/03/1975
(268) 9.47 ft on 08/10/1995
(269) 9.00 ft on 04/09/1954
(270) -9,999.00 ft on 02/01/1916

(P): Preliminary values subject to further review.