Historic Crests
(1) 18.63 ft on 06/28/1957
(2) 18.00 ft on 03/28/1913
(3) 17.96 ft on 06/22/1952
(4) 17.71 ft on 03/04/1963
(5) 17.46 ft on 05/08/1961
(6) 17.40 ft on 04/19/2013
(7) 17.33 ft on 01/04/1950
(8) 17.12 ft on 06/23/1960
(9) 17.07 ft on 05/24/1968
(10) 16.85 ft on 12/30/1990
(11) 16.83 ft on 01/21/1959
(12) 16.79 ft on 06/07/2008
(13) 16.68 ft on 12/20/1957
(14) 16.61 ft on 04/03/2018 (P)
(15) 16.60 ft on 02/25/1956
(16) 16.59 ft on 03/21/1962
(17) 16.50 ft on 06/11/1958
(18) 16.47 ft on 04/25/1961
(19) 16.42 ft on 02/10/1959
(20) 16.37 ft on 11/15/1993
(21) 16.36 ft on 04/20/2011
(22) 16.27 ft on 09/14/1962
(23) 16.26 ft on 06/05/2008
(24) 16.22 ft on 01/27/1962
(25) 16.20 ft on 09/01/1950
(26) 16.19 ft on 04/28/2011
(27) 16.18 ft on 06/19/1957
(28) 16.18 ft on 07/14/1962
(29) 16.13 ft on 01/13/2013
(30) 16.09 ft on 08/01/1958
(31) 16.09 ft on 05/22/1957
(32) 16.04 ft on 04/21/1964
(33) 16.03 ft on 04/13/1952
(34) 16.02 ft on 02/12/2009
(35) 15.99 ft on 05/17/1990
(36) 15.97 ft on 12/12/1985
(37) 15.94 ft on 08/17/1993
(38) 15.90 ft on 02/27/1997
(39) 15.88 ft on 06/10/2008
(40) 15.88 ft on 01/16/1950
(41) 15.87 ft on 03/04/1953
(42) 15.85 ft on 01/30/1969
(43) 15.84 ft on 04/04/1957
(44) 15.83 ft on 05/05/2017 (P)
(45) 15.81 ft on 03/05/2011
(46) 15.77 ft on 02/28/2011
(47) 15.76 ft on 11/20/1985
(48) 15.71 ft on 12/22/1967
(49) 15.70 ft on 11/13/1992
(50) 15.60 ft on 09/15/1989
(51) 15.47 ft on 03/04/1979
(52) 15.37 ft on 06/22/2010
(53) 15.35 ft on 06/28/1952
(54) 15.34 ft on 07/02/1987
(55) 15.25 ft on 09/22/1950
(56) 15.22 ft on 01/26/1950
(57) 15.20 ft on 12/27/2015 (P)
(58) 15.19 ft on 12/26/1957
(59) 15.05 ft on 03/11/1952
(60) 15.02 ft on 01/15/2007
(61) 14.97 ft on 04/03/1956
(62) 14.94 ft on 12/22/2013
(63) 14.94 ft on 04/29/1996
(64) 14.89 ft on 02/14/1950
(65) 14.88 ft on 03/13/1961
(66) 14.84 ft on 03/10/1964
(67) 14.83 ft on 02/08/2019
(68) 14.75 ft on 02/22/1971
(69) 14.69 ft on 11/02/1972
(70) 14.67 ft on 04/04/2014
(71) 14.64 ft on 01/27/1952
(72) 14.62 ft on 02/06/2008
(73) 14.56 ft on 03/11/1990
(74) 14.54 ft on 01/30/1968
(75) 14.48 ft on 07/17/1951
(76) 14.44 ft on 07/29/1979
(77) 14.43 ft on 03/14/1978
(78) 14.37 ft on 11/20/1950
(79) 14.36 ft on 02/21/1951
(80) 14.34 ft on 01/14/1950
(81) 14.30 ft on 02/24/1985
(82) 14.28 ft on 03/22/1952
(83) 14.26 ft on 02/23/1975
(84) 14.20 ft on 01/10/1950
(85) 14.17 ft on 07/13/2015
(86) 14.14 ft on 11/14/1957
(87) 14.11 ft on 10/04/1986
(88) 14.08 ft on 06/23/1956
(89) 14.07 ft on 11/17/1993
(90) 14.07 ft on 01/05/1993
(91) 14.02 ft on 01/18/1969
(92) 14.02 ft on 02/04/1971
(93) 14.02 ft on 07/06/1987
(94) 13.97 ft on 01/22/1957
(95) 13.96 ft on 08/01/1979
(96) 13.95 ft on 06/16/2019
(97) 13.92 ft on 04/24/1970
(98) 13.81 ft on 02/02/1968
(99) 13.77 ft on 04/04/1968
(100) 13.75 ft on 12/25/1982
(101) 13.74 ft on 05/09/1996
(102) 13.74 ft on 04/11/1994
(103) 13.74 ft on 05/29/1956
(104) 13.72 ft on 12/08/1966
(105) 13.71 ft on 04/07/1988
(106) 13.69 ft on 12/14/1977
(107) 13.65 ft on 12/15/1971
(108) 13.53 ft on 05/27/1996
(109) 13.52 ft on 12/03/1950
(110) 13.50 ft on 02/10/1960
(111) 13.47 ft on 02/15/1990
(112) 13.47 ft on 02/10/1965
(113) 13.46 ft on 05/07/1967
(114) 13.39 ft on 07/05/1957
(115) 13.38 ft on 12/04/1982
(116) 13.33 ft on 07/14/1979
(117) 13.29 ft on 05/13/1990
(118) 13.26 ft on 05/26/1989
(119) 13.24 ft on 03/07/1995
(120) 13.20 ft on 02/22/1985
(121) 13.20 ft on 03/27/1950
(122) 13.19 ft on 05/29/1996
(123) 13.18 ft on 08/19/1980
(124) 13.17 ft on 03/19/1986
(125) 13.17 ft on 05/01/1986
(126) 13.14 ft on 01/29/1970
(127) 13.10 ft on 03/14/1997
(128) 13.05 ft on 05/18/1981
(129) 12.95 ft on 12/28/1968
(130) 12.88 ft on 04/08/1957
(131) 12.87 ft on 05/13/1978
(132) 12.86 ft on 10/12/1969
(133) 12.81 ft on 04/18/1969
(134) 12.78 ft on 04/24/1975
(135) 12.78 ft on 06/21/2015
(136) 12.77 ft on 04/04/1950
(137) 12.71 ft on 03/21/1978
(138) 12.70 ft on 07/27/1951
(139) 12.70 ft on 06/19/1983
(140) 12.65 ft on 05/04/1996
(141) 12.64 ft on 02/24/1979
(142) 12.61 ft on 03/31/1985
(143) 12.60 ft on 01/24/2019
(144) 12.59 ft on 11/27/1985
(145) 12.55 ft on 01/31/1982
(146) 12.51 ft on 04/22/1984
(147) 12.50 ft on 04/05/1985
(148) 12.49 ft on 07/12/2017 (P)
(149) 12.47 ft on 05/19/1995
(150) 12.47 ft on 07/06/1953
(151) 12.47 ft on 12/26/1973
(152) 12.44 ft on 04/04/1989
(153) 12.42 ft on 02/12/1951
(154) 12.35 ft on 01/20/2017 (P)
(155) 12.30 ft on 04/02/1959
(156) 12.29 ft on 04/23/1996
(157) 12.28 ft on 04/05/1952
(158) 12.28 ft on 01/28/1994
(159) 12.19 ft on 01/19/1974
(160) 12.17 ft on 01/03/1951
(161) 12.15 ft on 04/17/1992
(162) 12.15 ft on 06/23/1974
(163) 12.15 ft on 02/26/1962
(164) 12.09 ft on 04/10/2015
(165) 12.09 ft on 01/11/1975
(166) 12.06 ft on 05/15/1974
(167) 12.06 ft on 02/08/1969
(168) 12.05 ft on 01/06/1955
(169) 12.04 ft on 05/11/1996
(170) 11.98 ft on 04/22/1961
(171) 11.95 ft on 02/06/1960
(172) 11.95 ft on 02/20/1971
(173) 11.92 ft on 05/24/1952
(174) 11.91 ft on 12/17/1957
(175) 11.86 ft on 01/23/1997
(176) 11.84 ft on 03/11/1973
(177) 11.84 ft on 05/11/1981
(178) 11.80 ft on 08/01/1963
(179) 11.80 ft on 07/09/1951
(180) 11.78 ft on 02/21/1982
(181) 11.77 ft on 02/25/2018 (P)
(182) 11.71 ft on 09/03/1993
(183) 11.70 ft on 05/11/1957
(184) 11.69 ft on 01/04/1982
(185) 11.67 ft on 08/03/1967
(186) 11.64 ft on 05/14/1957
(187) 11.59 ft on 11/28/1985
(188) 11.57 ft on 03/16/1984
(189) 11.54 ft on 05/17/1974
(190) 11.51 ft on 11/19/1969
(191) 11.50 ft on 03/19/1963
(192) 11.36 ft on 03/11/1982
(193) 11.35 ft on 12/07/1950
(194) 11.34 ft on 02/04/1952
(195) 11.32 ft on 07/21/1973
(196) 11.30 ft on 03/21/1998
(197) 11.28 ft on 03/19/1982
(198) 11.23 ft on 08/23/1989
(199) 11.22 ft on 08/29/1979
(200) 11.20 ft on 11/02/1992
(201) 11.18 ft on 04/12/1979
(202) 11.07 ft on 05/02/1983
(203) 11.04 ft on 03/04/1993
(204) 11.00 ft on 12/12/1983
(205) 11.00 ft on 11/28/1990
(206) 10.93 ft on 04/03/1964
(207) 10.92 ft on 04/27/1964
(208) 10.91 ft on 02/16/1951
(209) 10.84 ft on 11/25/1973
(210) 10.78 ft on 07/27/1981
(211) 10.77 ft on 09/26/2018
(212) 10.77 ft on 10/12/1949
(213) 10.75 ft on 07/31/1992
(214) 10.74 ft on 02/02/1988
(215) 10.73 ft on 05/15/1981
(216) 10.70 ft on 03/30/1980
(217) 10.61 ft on 06/22/1997
(218) 10.57 ft on 04/07/1972
(219) 10.56 ft on 03/26/1973
(220) 10.50 ft on 06/17/1973
(221) 10.50 ft on 04/22/1972
(222) 10.49 ft on 01/15/1951
(223) 10.42 ft on 03/05/1976
(224) 10.31 ft on 10/01/1977
(225) 10.30 ft on 08/22/1979
(226) 10.25 ft on 03/29/1975
(227) 10.19 ft on 07/24/1971
(228) 10.18 ft on 12/13/1972
(229) 10.12 ft on 11/14/1972
(230) 10.10 ft on 09/10/1989
(231) 10.07 ft on 12/03/1990
(232) 10.06 ft on 12/31/1972
(233) 10.06 ft on 11/28/1973
(234) 10.03 ft on 05/19/1974
(235) 10.02 ft on 03/23/1991
(236) 10.02 ft on 05/25/1971
(237) 9.98 ft on 04/06/1965
(238) 9.97 ft on 06/12/1996
(239) 9.96 ft on 07/27/1969
(240) 9.95 ft on 01/27/1974
(241) 9.94 ft on 06/08/1982
(242) 9.93 ft on 02/17/1976
(243) 9.92 ft on 02/02/1967
(244) 9.84 ft on 02/17/1982
(245) 9.82 ft on 01/01/1985
(246) 9.80 ft on 03/13/1982
(247) 9.72 ft on 06/11/1996
(248) 9.72 ft on 08/20/1979
(249) 9.68 ft on 04/14/1983
(250) 9.67 ft on 05/22/1974
(251) 9.67 ft on 05/15/1970
(252) 9.66 ft on 01/01/1979
(253) 9.65 ft on 12/21/1990
(254) 9.60 ft on 02/11/1976
(255) 9.60 ft on 05/01/1998
(256) 9.58 ft on 05/30/1981
(257) 9.55 ft on 10/01/1986
(258) 9.49 ft on 03/13/1991
(259) 9.48 ft on 02/04/1986
(260) 9.48 ft on 01/31/1975
(261) 9.45 ft on 11/26/1979
(262) 9.44 ft on 03/28/1977
(263) 9.39 ft on 05/23/1978
(264) 9.35 ft on 03/17/1973
(265) 9.34 ft on 11/10/1985
(266) 9.30 ft on 03/05/1974
(267) 9.27 ft on 06/27/1973
(268) 9.23 ft on 03/26/1991
(269) 9.21 ft on 02/22/1980
(270) 9.20 ft on 03/18/1998
(271) 9.15 ft on 09/22/1992
(272) 9.08 ft on 03/25/1978
(273) 9.06 ft on 02/24/1982
(274) 8.93 ft on 03/20/1984
(275) 8.90 ft on 12/24/1996
(276) 8.30 ft on 06/01/1997
(277) 8.20 ft on 05/08/1998
(278) 7.46 ft on 02/04/1997

(P): Preliminary values subject to further review.