Historic Crests
(1) 21.00 ft on 03/26/1913
(2) 20.91 ft on 06/08/2008
(3) 19.67 ft on 01/05/1949
(4) 19.53 ft on 07/15/2015
(5) 19.50 ft on 01/16/1937
(6) 19.40 ft on 01/06/2005
(7) 19.39 ft on 01/22/1959
(8) 19.31 ft on 08/06/2009
(9) 19.20 ft on 01/10/1930
(10) 19.14 ft on 11/17/1993
(11) 19.11 ft on 12/24/2013
(12) 19.07 ft on 04/30/1996
(13) 19.02 ft on 01/05/2004
(14) 19.02 ft on 01/22/1937
(15) 18.98 ft on 06/20/2021 (P)
(16) 18.97 ft on 12/31/1990
(17) 18.93 ft on 05/24/1968
(18) 18.91 ft on 02/08/2019
(19) 18.88 ft on 05/09/1961
(20) 18.79 ft on 03/20/1943
(21) 18.73 ft on 04/16/1998
(22) 18.72 ft on 03/10/1964
(23) 18.69 ft on 01/05/1950
(24) 18.69 ft on 03/13/2006
(25) 18.68 ft on 03/20/2008
(26) 18.67 ft on 02/15/1950
(27) 18.65 ft on 01/28/1952
(28) 18.64 ft on 03/07/1963
(29) 18.61 ft on 03/07/1945
(30) 18.45 ft on 05/14/2002
(31) 18.42 ft on 06/02/1997
(32) 18.40 ft on 01/16/2007
(33) 18.38 ft on 02/01/1982
(34) 18.37 ft on 02/24/1975
(35) 18.37 ft on 04/20/1940
(36) 18.36 ft on 05/19/1995
(37) 18.35 ft on 05/17/1990
(38) 18.31 ft on 04/22/2011
(39) 18.30 ft on 01/15/1930
(40) 18.30 ft on 03/22/1927
(41) 18.25 ft on 04/12/1944
(42) 18.24 ft on 06/18/2019
(43) 18.16 ft on 04/05/2014
(44) 18.15 ft on 01/12/2020 (P)
(45) 18.14 ft on 04/04/2018 (P)
(46) 18.11 ft on 11/18/1955
(47) 18.10 ft on 06/03/1997
(48) 18.06 ft on 05/06/2017 (P)
(49) 18.05 ft on 02/25/2018 (P)
(50) 18.05 ft on 05/30/1956
(51) 18.04 ft on 01/25/1949
(52) 18.04 ft on 03/21/2020 (P)
(53) 18.00 ft on 05/15/1933
(54) 18.00 ft on 01/01/1933
(55) 17.95 ft on 07/23/1969
(56) 17.95 ft on 08/02/1979
(57) 17.95 ft on 07/11/2003
(58) 17.94 ft on 05/23/1957
(59) 17.94 ft on 05/03/1983
(60) 17.90 ft on 06/16/2010
(61) 17.89 ft on 12/29/2015 (P)
(62) 17.86 ft on 01/31/1969
(63) 17.84 ft on 06/04/1947
(64) 17.80 ft on 03/17/1943
(65) 17.78 ft on 03/08/2011
(66) 17.74 ft on 04/17/1939
(67) 17.74 ft on 05/12/1996
(68) 17.73 ft on 02/24/1979
(69) 17.73 ft on 05/06/1996
(70) 17.71 ft on 01/16/1950
(71) 17.71 ft on 03/05/2008
(72) 17.68 ft on 03/15/1978
(73) 17.68 ft on 01/14/2005
(74) 17.67 ft on 04/22/1964
(75) 17.62 ft on 03/12/1939
(76) 17.60 ft on 07/18/2021 (P)
(77) 17.59 ft on 06/24/1960
(78) 17.56 ft on 12/11/1966
(79) 17.54 ft on 04/05/1957
(80) 17.50 ft on 01/16/2013
(81) 17.48 ft on 01/25/1937
(82) 17.47 ft on 01/24/1999
(83) 17.44 ft on 11/28/1985
(84) 17.42 ft on 03/28/1948
(85) 17.40 ft on 02/07/2008
(86) 17.39 ft on 03/17/1938
(87) 17.36 ft on 01/11/1950
(88) 17.32 ft on 12/04/2006
(89) 17.31 ft on 04/12/1994
(90) 17.29 ft on 01/29/1994
(91) 17.22 ft on 04/21/2019
(92) 17.19 ft on 05/29/1996
(93) 17.18 ft on 01/19/1996
(94) 17.17 ft on 02/23/1971
(95) 17.17 ft on 01/28/1949
(96) 17.16 ft on 12/21/1957
(97) 17.13 ft on 01/10/2008
(98) 17.12 ft on 03/06/1979
(99) 17.11 ft on 01/24/1982
(100) 17.09 ft on 01/27/1950
(101) 17.09 ft on 04/24/1996
(102) 17.08 ft on 05/07/1958
(103) 17.07 ft on 01/19/1949
(104) 17.07 ft on 05/28/1981
(105) 17.07 ft on 04/11/1994
(106) 17.04 ft on 02/22/1951
(107) 17.03 ft on 02/16/1949
(108) 17.02 ft on 04/28/1961
(109) 16.99 ft on 02/26/1985
(110) 16.97 ft on 03/27/1949
(111) 16.96 ft on 03/01/2021 (P)
(112) 16.90 ft on 03/21/1945
(113) 16.90 ft on 10/07/2000
(114) 16.88 ft on 11/03/2018
(115) 16.86 ft on 03/13/1975
(116) 16.86 ft on 07/06/1957
(117) 16.86 ft on 01/24/2019
(118) 16.85 ft on 02/03/1988
(119) 16.85 ft on 05/28/1989
(120) 16.82 ft on 03/03/1945
(121) 16.82 ft on 01/02/1985
(122) 16.82 ft on 04/02/1985
(123) 16.78 ft on 07/23/1958
(124) 16.76 ft on 06/11/1981
(125) 16.72 ft on 04/04/1956
(126) 16.71 ft on 04/03/1970
(127) 16.71 ft on 03/30/1989
(128) 16.67 ft on 04/04/1989
(129) 16.66 ft on 04/17/1972
(130) 16.66 ft on 02/19/1982
(131) 16.62 ft on 06/14/1958
(132) 16.62 ft on 07/01/2015
(133) 16.62 ft on 08/09/1995
(134) 16.60 ft on 03/02/1997
(135) 16.59 ft on 02/14/1936
(136) 16.58 ft on 02/12/1965
(137) 16.56 ft on 03/23/1952
(138) 16.53 ft on 02/07/1986
(139) 16.47 ft on 11/21/1950
(140) 16.47 ft on 03/15/2015
(141) 16.46 ft on 12/15/1977
(142) 16.46 ft on 12/04/1950
(143) 16.46 ft on 04/10/1938
(144) 16.45 ft on 06/19/1945
(145) 16.45 ft on 12/25/1979
(146) 16.42 ft on 01/21/2017 (P)
(147) 16.41 ft on 05/18/1996
(148) 16.37 ft on 04/30/1989
(149) 16.33 ft on 05/02/1947
(150) 16.33 ft on 05/02/1945
(151) 16.33 ft on 03/14/1961
(152) 16.32 ft on 04/12/1998
(153) 16.32 ft on 11/06/1936
(154) 16.31 ft on 07/16/1962
(155) 16.31 ft on 11/26/1979
(156) 16.31 ft on 02/25/2016 (P)
(157) 16.30 ft on 04/05/1950
(158) 16.30 ft on 05/16/1996
(159) 16.28 ft on 04/25/1970
(160) 16.27 ft on 01/15/1951
(161) 16.25 ft on 03/23/1991
(162) 16.23 ft on 06/16/2017 (P)
(163) 16.22 ft on 12/10/1951
(164) 16.22 ft on 04/24/1984
(165) 16.22 ft on 03/15/2016 (P)
(166) 16.21 ft on 04/22/1995
(167) 16.16 ft on 12/19/1990
(168) 16.15 ft on 04/08/1988
(169) 16.12 ft on 08/04/1958
(170) 16.12 ft on 03/12/1973
(171) 16.12 ft on 02/18/1990
(172) 16.12 ft on 12/19/1937
(173) 16.11 ft on 09/12/2018
(174) 16.06 ft on 01/02/1979
(175) 16.06 ft on 03/27/1991
(176) 16.05 ft on 02/04/1968
(177) 16.05 ft on 07/14/2017 (P)
(178) 16.04 ft on 04/13/1948
(179) 16.02 ft on 03/17/1963
(180) 16.00 ft on 03/07/1961
(181) 16.00 ft on 12/14/1985
(182) 15.99 ft on 02/28/1962
(183) 15.99 ft on 02/12/1959
(184) 15.98 ft on 05/21/1943
(185) 15.93 ft on 02/07/1991
(186) 15.92 ft on 04/05/1945
(187) 15.92 ft on 11/07/2017 (P)
(188) 15.90 ft on 03/28/1950
(189) 15.87 ft on 12/26/1996
(190) 15.87 ft on 05/03/1985
(191) 15.86 ft on 04/11/2015
(192) 15.84 ft on 02/13/2009
(193) 15.83 ft on 01/19/1969
(194) 15.83 ft on 01/27/1976
(195) 15.83 ft on 03/22/1980
(196) 15.83 ft on 11/17/1985
(197) 15.80 ft on 04/09/2000
(198) 15.79 ft on 04/06/1984
(199) 15.76 ft on 06/21/2015
(200) 15.70 ft on 05/18/1947
(201) 15.70 ft on 05/18/1945
(202) 15.63 ft on 06/20/2004
(203) 15.63 ft on 05/09/1996
(204) 15.62 ft on 01/11/1937
(205) 15.57 ft on 03/06/1993
(206) 15.56 ft on 06/23/1956
(207) 15.56 ft on 12/08/1950
(208) 15.53 ft on 02/14/1948
(209) 15.52 ft on 03/01/1950
(210) 15.52 ft on 02/09/1950
(211) 15.47 ft on 04/13/2016 (P)
(212) 15.47 ft on 08/18/2016 (P)
(213) 15.46 ft on 05/20/1974
(214) 15.45 ft on 12/06/1993
(215) 15.43 ft on 01/21/1974
(216) 15.40 ft on 02/13/2020 (P)
(217) 15.37 ft on 02/05/1990
(218) 15.34 ft on 01/25/1997
(219) 15.32 ft on 01/24/1996
(220) 15.25 ft on 02/14/1946
(221) 15.25 ft on 02/04/1952
(222) 15.21 ft on 04/09/1948
(223) 15.18 ft on 07/06/1938
(224) 15.15 ft on 03/21/1989
(225) 15.12 ft on 01/31/1947
(226) 15.12 ft on 01/31/1945
(227) 15.12 ft on 12/26/1957
(228) 15.10 ft on 02/06/1997
(229) 15.09 ft on 02/19/1976
(230) 15.08 ft on 04/11/1942
(231) 15.03 ft on 01/22/1997
(232) 14.99 ft on 05/16/1967
(233) 14.99 ft on 12/08/2014
(234) 14.99 ft on 12/16/2018
(235) 14.98 ft on 03/25/1996
(236) 14.96 ft on 02/28/1936
(237) 14.94 ft on 03/22/1998
(238) 14.94 ft on 03/29/1975
(239) 14.93 ft on 04/24/1973
(240) 14.93 ft on 05/24/1989
(241) 14.87 ft on 04/17/1945
(242) 14.87 ft on 03/21/1982
(243) 14.86 ft on 01/05/2015
(244) 14.86 ft on 04/18/1981
(245) 14.85 ft on 04/09/1974
(246) 14.83 ft on 04/21/1992
(247) 14.82 ft on 03/16/1991
(248) 14.81 ft on 04/02/1938
(249) 14.78 ft on 10/08/1986
(250) 14.76 ft on 06/11/1996
(251) 14.75 ft on 02/08/1942
(252) 14.67 ft on 05/13/2003
(253) 14.66 ft on 11/17/1972
(254) 14.65 ft on 12/22/1984
(255) 14.64 ft on 12/18/1996
(256) 14.64 ft on 04/27/1965
(257) 14.64 ft on 05/05/1990
(258) 14.62 ft on 04/14/1979
(259) 14.52 ft on 06/26/1974
(260) 14.52 ft on 01/01/1976
(261) 14.52 ft on 12/09/1978
(262) 14.52 ft on 10/22/1993
(263) 14.50 ft on 05/08/1967
(264) 14.50 ft on 05/21/2020 (P)
(265) 14.46 ft on 02/27/1945
(266) 14.44 ft on 04/27/1947
(267) 14.44 ft on 04/27/1945
(268) 14.44 ft on 05/01/1994
(269) 14.37 ft on 06/09/1947
(270) 14.37 ft on 06/09/1945
(271) 14.37 ft on 04/15/1983
(272) 14.37 ft on 06/14/2018 (P)
(273) 14.36 ft on 12/13/1983
(274) 14.35 ft on 02/03/2016 (P)
(275) 14.34 ft on 05/10/1998
(276) 14.34 ft on 03/21/2021 (P)
(277) 14.33 ft on 06/10/1996
(278) 14.33 ft on 01/01/2020 (P)
(279) 14.29 ft on 03/14/1990
(280) 14.29 ft on 04/14/1991
(281) 14.28 ft on 07/01/1957
(282) 14.28 ft on 04/24/1995
(283) 14.24 ft on 11/18/1989
(284) 14.23 ft on 04/11/1993
(285) 14.21 ft on 04/19/1969
(286) 14.20 ft on 01/06/1993
(287) 14.19 ft on 09/05/2003
(288) 14.17 ft on 12/16/1948
(289) 14.16 ft on 02/13/1960
(290) 14.15 ft on 01/12/1975
(291) 14.15 ft on 05/29/1995
(292) 14.13 ft on 03/27/1938
(293) 14.13 ft on 12/28/1982
(294) 14.13 ft on 01/23/1962
(295) 14.11 ft on 03/18/1973
(296) 14.10 ft on 02/05/1997
(297) 14.09 ft on 05/14/1978
(298) 14.09 ft on 01/04/1951
(299) 14.09 ft on 09/10/2016 (P)
(300) 14.08 ft on 03/24/1962
(301) 14.07 ft on 02/18/1942
(302) 14.06 ft on 03/12/1952
(303) 14.01 ft on 03/19/1975
(304) 14.00 ft on 11/15/1992
(305) 13.99 ft on 08/31/1978
(306) 13.98 ft on 02/28/1956
(307) 13.97 ft on 01/28/1997
(308) 13.97 ft on 12/09/1972
(309) 13.97 ft on 03/13/1985
(310) 13.96 ft on 03/21/1986
(311) 13.95 ft on 04/04/1977
(312) 13.93 ft on 03/22/1984
(313) 13.90 ft on 11/13/1985
(314) 13.89 ft on 05/01/1998
(315) 13.89 ft on 08/19/1978
(316) 13.86 ft on 03/10/1995
(317) 13.82 ft on 04/02/1996
(318) 13.79 ft on 02/02/1975
(319) 13.78 ft on 07/16/1979
(320) 13.76 ft on 02/14/1951
(321) 13.76 ft on 02/23/1950
(322) 13.74 ft on 03/14/1986
(323) 13.72 ft on 04/05/1968
(324) 13.69 ft on 07/23/1972
(325) 13.63 ft on 06/08/1973
(326) 13.62 ft on 12/29/1973
(327) 13.62 ft on 05/04/2019
(328) 13.61 ft on 04/21/1996
(329) 13.60 ft on 03/08/1967
(330) 13.60 ft on 07/06/1932
(331) 13.59 ft on 12/29/1968
(332) 13.56 ft on 05/25/1952
(333) 13.55 ft on 03/07/1953
(334) 13.53 ft on 06/16/2004
(335) 13.52 ft on 05/18/1953
(336) 13.48 ft on 12/02/1996
(337) 13.47 ft on 12/26/1951
(338) 13.47 ft on 04/16/1993
(339) 13.38 ft on 07/07/1971
(340) 13.38 ft on 02/21/1938
(341) 13.32 ft on 03/11/1942
(342) 13.30 ft on 06/10/1997
(343) 13.13 ft on 06/08/1996
(344) 13.04 ft on 04/07/1952
(345) 13.04 ft on 06/23/2018
(346) 13.01 ft on 08/06/1995
(347) 13.00 ft on 03/16/1997
(348) 12.97 ft on 05/26/1943
(349) 12.95 ft on 05/15/1995
(350) 12.83 ft on 11/28/1996
(351) 12.77 ft on 02/12/1966
(352) 12.60 ft on 04/02/2016 (P)
(353) 12.51 ft on 01/14/2018 (P)
(354) 12.41 ft on 04/14/1997
(355) 12.40 ft on 06/26/2017 (P)
(356) 12.40 ft on 03/02/2017 (P)
(357) 12.31 ft on 03/15/2019
(358) 12.30 ft on 03/11/1997
(359) 12.26 ft on 04/29/2016 (P)
(360) 12.25 ft on 05/06/1935
(361) 12.16 ft on 05/18/2021 (P)
(362) 12.12 ft on 01/26/1994
(363) 12.12 ft on 05/08/1994
(364) 12.10 ft on 03/11/1998
(365) 12.05 ft on 05/03/1997
(366) 12.05 ft on 01/08/1998
(367) 12.02 ft on 06/15/2004
(368) 12.00 ft on 06/22/1997
(369) 11.91 ft on 06/13/2004
(370) 11.90 ft on 11/25/1992
(371) 11.88 ft on 01/25/1993
(372) 11.85 ft on 05/27/2017 (P)
(373) 11.73 ft on 04/03/1993
(374) 11.69 ft on 07/27/2016 (P)
(375) 11.60 ft on 01/07/1997
(376) 11.58 ft on 03/28/1934
(377) 11.46 ft on 06/06/2002
(378) 11.23 ft on 06/20/1996
(379) 11.22 ft on 04/16/2018
(380) 11.16 ft on 02/22/1993
(381) 11.13 ft on 03/25/1993
(382) 11.13 ft on 05/10/1995
(383) 11.10 ft on 06/21/1992
(384) 11.09 ft on 08/17/1993
(385) 11.06 ft on 12/20/1995
(386) 10.97 ft on 11/11/1996
(387) 10.80 ft on 01/23/1993
(388) 10.53 ft on 06/28/1994
(389) 10.40 ft on 03/19/1933
(390) 10.20 ft on 01/26/1929
(391) 10.20 ft on 01/20/1929
(392) 10.20 ft on 12/02/1927
(393) 10.10 ft on 01/19/1932
(394) 9.90 ft on 04/19/1933
(395) 9.90 ft on 01/23/1927
(396) 9.70 ft on 01/23/1933
(397) 9.40 ft on 01/24/1932
(398) 9.20 ft on 09/12/1926
(399) 9.20 ft on 08/12/1926
(400) 9.02 ft on 02/16/1995
(401) 9.00 ft on 12/14/1931
(402) 9.00 ft on 03/31/1924
(403) 8.99 ft on 04/09/1954
(404) 8.90 ft on 12/23/1923
(405) 8.70 ft on 12/19/1929
(406) 8.70 ft on 04/09/1926
(407) 8.50 ft on 05/20/1929
(408) 8.50 ft on 02/06/1928
(409) 8.40 ft on 05/15/1929
(410) 8.20 ft on 04/11/1929
(411) 8.20 ft on 11/16/1925
(412) 7.90 ft on 04/07/1927
(413) 7.80 ft on 01/11/1924
(414) 7.70 ft on 12/26/1932
(415) 7.60 ft on 04/22/1928
(416) 7.40 ft on 03/23/1926
(417) 7.30 ft on 02/14/1930
(418) 7.30 ft on 01/03/1930
(419) 6.90 ft on 02/27/1930
(420) 6.90 ft on 07/06/1929
(421) 5.95 ft on 06/13/1941

(P): Preliminary values subject to further review.