Historic Crests
(1) 26.67 ft on 01/05/1950
(2) 26.61 ft on 05/10/1961
(3) 26.30 ft on 08/22/1915
(4) 26.19 ft on 05/19/1995
(5) 25.97 ft on 12/30/2015
(6) 25.80 ft on 05/20/1943
(7) 25.45 ft on 01/07/2005
(8) 25.10 ft on 01/31/1916
(9) 24.91 ft on 12/23/1967
(10) 24.76 ft on 05/17/1990
(11) 24.66 ft on 05/15/2002
(12) 24.42 ft on 04/23/1984
(13) 24.40 ft on 04/29/2011
(14) 24.22 ft on 11/20/1986
(15) 24.22 ft on 11/20/1985
(16) 24.17 ft on 02/25/1985
(17) 24.06 ft on 02/01/1969
(18) 24.06 ft on 11/17/1993
(19) 24.00 ft on 03/21/1927
(20) 23.94 ft on 06/17/1957
(21) 23.87 ft on 12/21/1957
(22) 23.86 ft on 07/07/2000
(23) 23.80 ft on 03/16/1922
(24) 23.74 ft on 01/24/1999
(25) 23.69 ft on 05/02/2017
(26) 23.61 ft on 03/21/2008
(27) 23.57 ft on 02/03/1988
(28) 23.57 ft on 04/02/1938
(29) 23.54 ft on 12/28/1982
(30) 23.44 ft on 01/15/1930
(31) 23.41 ft on 06/20/2015
(32) 23.35 ft on 04/02/1945
(33) 23.18 ft on 04/05/2014
(34) 23.07 ft on 03/06/1979
(35) 23.06 ft on 05/01/1996
(36) 23.04 ft on 05/20/1929
(37) 23.00 ft on 05/04/1946
(38) 22.91 ft on 02/23/1982
(39) 22.88 ft on 03/30/2018
(40) 22.81 ft on 04/23/1918
(41) 22.80 ft on 02/26/1975
(42) 22.76 ft on 04/21/2013
(43) 22.75 ft on 05/11/1996
(44) 22.69 ft on 02/14/2009
(45) 22.68 ft on 04/13/1994
(46) 22.61 ft on 01/07/1993
(47) 22.48 ft on 03/17/1923
(48) 22.45 ft on 04/25/1970
(49) 22.40 ft on 05/16/1933
(50) 22.32 ft on 03/15/1978
(51) 22.30 ft on 12/28/1973
(52) 22.29 ft on 09/10/2018 (P)
(53) 22.26 ft on 06/07/1917
(54) 22.25 ft on 04/08/1926
(55) 22.22 ft on 04/19/1939
(56) 22.14 ft on 02/09/1999
(57) 22.10 ft on 03/02/1997
(58) 22.10 ft on 01/16/2007
(59) 22.07 ft on 01/20/1949
(60) 22.06 ft on 02/08/2019 (P)
(61) 22.03 ft on 02/22/1951
(62) 22.03 ft on 03/13/1973
(63) 21.94 ft on 06/25/2013
(64) 21.94 ft on 05/05/1935
(65) 21.94 ft on 01/07/2004
(66) 21.93 ft on 06/22/2011
(67) 21.92 ft on 03/24/1962
(68) 21.91 ft on 08/18/2016
(69) 21.90 ft on 03/29/1977
(70) 21.90 ft on 02/13/1959
(71) 21.80 ft on 01/15/1937
(72) 21.78 ft on 02/08/1928
(73) 21.77 ft on 01/14/2005
(74) 21.74 ft on 02/26/2018
(75) 21.74 ft on 01/14/2013
(76) 21.72 ft on 12/15/1918
(77) 21.58 ft on 03/15/2015
(78) 21.55 ft on 03/29/1948
(79) 21.55 ft on 01/23/1932
(80) 21.53 ft on 03/13/2006
(81) 21.52 ft on 07/03/2013
(82) 21.51 ft on 10/31/1919
(83) 21.50 ft on 04/24/1944
(84) 21.47 ft on 12/28/2009
(85) 21.43 ft on 12/17/2018 (P)
(86) 21.41 ft on 06/11/1996
(87) 21.40 ft on 05/29/2004
(88) 21.36 ft on 04/23/1972
(89) 21.36 ft on 05/16/2009
(90) 21.35 ft on 06/23/2019 (P)
(91) 21.35 ft on 06/04/2013
(92) 21.33 ft on 04/04/1989
(93) 21.23 ft on 04/24/1996
(94) 21.22 ft on 02/07/2008
(95) 21.18 ft on 12/23/2013
(96) 21.17 ft on 01/25/2019 (P)
(97) 21.10 ft on 03/06/2011
(98) 20.98 ft on 04/01/1980
(99) 20.96 ft on 04/11/2009
(100) 20.92 ft on 02/09/2008
(101) 20.90 ft on 10/05/2014
(102) 20.83 ft on 05/09/1998
(103) 20.82 ft on 03/08/1976
(104) 20.80 ft on 12/07/2014
(105) 20.72 ft on 06/14/2018
(106) 20.71 ft on 03/07/1963
(107) 20.70 ft on 06/29/2000
(108) 20.70 ft on 07/22/2010
(109) 20.68 ft on 05/28/2019 (P)
(110) 20.66 ft on 02/25/2016
(111) 20.66 ft on 04/06/1952
(112) 20.65 ft on 03/11/1964
(113) 20.64 ft on 01/27/2012
(114) 20.61 ft on 07/02/1960
(115) 20.60 ft on 04/11/1942
(116) 20.60 ft on 03/30/1921
(117) 20.50 ft on 01/19/1999
(118) 20.50 ft on 05/11/2003
(119) 20.49 ft on 12/01/2011
(120) 20.46 ft on 04/13/2016
(121) 20.45 ft on 01/31/2013
(122) 20.45 ft on 07/01/2000
(123) 20.43 ft on 01/24/1997
(124) 20.40 ft on 06/26/2000
(125) 20.40 ft on 01/21/2017
(126) 20.38 ft on 03/18/2019 (P)
(127) 20.34 ft on 12/11/1966
(128) 20.32 ft on 04/04/2019 (P)
(129) 20.31 ft on 02/01/1947
(130) 20.31 ft on 05/05/1998
(131) 20.31 ft on 02/02/1999
(132) 20.29 ft on 02/24/1971
(133) 20.26 ft on 02/14/2001
(134) 20.26 ft on 03/19/2013
(135) 20.25 ft on 03/22/1998
(136) 20.21 ft on 02/27/1956
(137) 20.21 ft on 03/25/1998
(138) 20.21 ft on 05/02/2014
(139) 20.17 ft on 12/30/2008
(140) 20.16 ft on 07/09/1998
(141) 20.13 ft on 12/17/2011
(142) 20.12 ft on 01/02/2019 (P)
(143) 20.09 ft on 08/30/1981
(144) 20.06 ft on 05/07/2013
(145) 20.04 ft on 02/23/2003
(146) 20.02 ft on 09/04/2014
(147) 20.01 ft on 05/02/1998
(148) 20.00 ft on 04/02/1924
(149) 20.00 ft on 01/11/2008
(150) 19.98 ft on 12/25/1924
(151) 19.97 ft on 04/18/1998
(152) 19.97 ft on 03/05/2008
(153) 19.96 ft on 04/27/2019 (P)
(154) 19.91 ft on 04/21/1992
(155) 19.90 ft on 11/29/2015
(156) 19.90 ft on 04/21/1940
(157) 19.90 ft on 05/24/1998
(158) 19.86 ft on 04/29/1966
(159) 19.85 ft on 02/26/2011
(160) 19.85 ft on 06/15/1998
(161) 19.85 ft on 02/28/2013
(162) 19.77 ft on 04/11/2015
(163) 19.77 ft on 06/03/1999
(164) 19.73 ft on 04/05/1999
(165) 19.72 ft on 12/14/2009
(166) 19.71 ft on 05/17/2014
(167) 19.69 ft on 12/07/2011
(168) 19.69 ft on 09/04/1931
(169) 19.68 ft on 11/19/2015
(170) 19.67 ft on 04/07/2017
(171) 19.63 ft on 04/02/1998
(172) 19.62 ft on 04/21/2009
(173) 19.58 ft on 05/07/1999
(174) 19.58 ft on 07/14/1987
(175) 19.56 ft on 02/26/2014
(176) 19.56 ft on 04/10/2010
(177) 19.52 ft on 06/13/2009
(178) 19.50 ft on 02/16/2005
(179) 19.49 ft on 08/29/2000
(180) 19.47 ft on 04/02/2016
(181) 19.46 ft on 03/16/2011
(182) 19.45 ft on 01/25/2010
(183) 19.45 ft on 06/13/2003
(184) 19.45 ft on 06/19/2000
(185) 19.38 ft on 06/22/2009
(186) 19.36 ft on 03/06/1953
(187) 19.36 ft on 12/02/2004
(188) 19.33 ft on 04/25/1955
(189) 19.32 ft on 07/31/1998
(190) 19.31 ft on 05/03/2010
(191) 19.30 ft on 08/09/2000
(192) 19.28 ft on 01/13/2014
(193) 19.23 ft on 05/05/2019 (P)
(194) 19.20 ft on 03/06/2004
(195) 19.20 ft on 08/06/1998
(196) 19.17 ft on 05/29/2000
(197) 19.15 ft on 03/27/2010
(198) 19.14 ft on 02/05/1997
(199) 19.13 ft on 02/28/1936
(200) 19.12 ft on 06/15/1999
(201) 19.08 ft on 11/26/2004
(202) 19.05 ft on 02/11/1965
(203) 19.05 ft on 04/22/2016
(204) 19.05 ft on 09/18/2016
(205) 19.02 ft on 10/22/2016
(206) 19.00 ft on 11/25/2003
(207) 18.96 ft on 03/10/1999
(208) 18.94 ft on 05/02/2016
(209) 18.93 ft on 09/13/2014
(210) 18.92 ft on 11/27/2010
(211) 18.92 ft on 01/18/2012
(212) 18.88 ft on 06/28/1999
(213) 18.86 ft on 07/05/2019 (P)
(214) 18.86 ft on 12/09/2004
(215) 18.84 ft on 03/30/1998
(216) 18.82 ft on 03/27/2015
(217) 18.82 ft on 06/23/1998
(218) 18.81 ft on 12/25/2014
(219) 18.81 ft on 05/25/2017
(220) 18.81 ft on 12/31/2003
(221) 18.80 ft on 06/20/2010
(222) 18.80 ft on 05/08/2012
(223) 18.79 ft on 01/05/2015
(224) 18.75 ft on 04/04/2015
(225) 18.66 ft on 10/10/2009
(226) 18.64 ft on 07/12/2003
(227) 18.61 ft on 02/23/2010
(228) 18.61 ft on 07/11/2015
(229) 18.60 ft on 11/03/2004
(230) 18.60 ft on 02/10/2005
(231) 18.59 ft on 02/19/2008
(232) 18.58 ft on 05/13/2016
(233) 18.57 ft on 04/30/1999
(234) 18.54 ft on 09/03/2012
(235) 18.47 ft on 03/21/2000
(236) 18.45 ft on 07/03/1999
(237) 18.45 ft on 05/13/2015
(238) 18.42 ft on 07/26/1998
(239) 18.42 ft on 06/03/2019 (P)
(240) 18.40 ft on 03/01/1999
(241) 18.32 ft on 09/03/2003
(242) 18.30 ft on 05/21/2010
(243) 18.28 ft on 05/28/2009
(244) 18.27 ft on 07/09/2011
(245) 18.24 ft on 11/03/2009
(246) 18.23 ft on 03/14/2010
(247) 18.20 ft on 06/12/1941
(248) 18.20 ft on 08/30/2004
(249) 18.19 ft on 04/28/2010
(250) 18.17 ft on 01/02/2011
(251) 18.17 ft on 12/21/2008
(252) 18.15 ft on 12/01/2016
(253) 18.12 ft on 04/12/2011
(254) 18.11 ft on 02/19/1998
(255) 18.10 ft on 10/20/2004
(256) 18.07 ft on 03/28/2013
(257) 18.04 ft on 07/15/2016
(258) 18.04 ft on 05/09/2009
(259) 18.03 ft on 12/26/2003
(260) 18.02 ft on 12/03/2018 (P)
(261) 17.93 ft on 11/13/2004
(262) 17.88 ft on 06/20/1998
(263) 17.88 ft on 10/25/2009
(264) 17.87 ft on 02/24/1997
(265) 17.82 ft on 02/07/2012
(266) 17.78 ft on 09/09/2012
(267) 17.74 ft on 04/06/1998
(268) 17.71 ft on 04/11/1999
(269) 17.59 ft on 05/28/2011
(270) 17.49 ft on 06/10/1998
(271) 17.38 ft on 07/01/2010
(272) 17.37 ft on 01/14/1999
(273) 17.34 ft on 06/04/2010
(274) 17.30 ft on 01/09/1998
(275) 17.20 ft on 04/26/2003
(276) 17.14 ft on 03/01/1998
(277) 17.12 ft on 09/27/2012
(278) 17.11 ft on 08/04/1998
(279) 17.07 ft on 12/30/2018 (P)
(280) 16.99 ft on 11/20/2009
(281) 16.92 ft on 06/17/2009
(282) 16.90 ft on 08/27/2018 (P)
(283) 16.74 ft on 12/04/2009
(284) 16.74 ft on 07/16/1934
(285) 16.67 ft on 03/07/1999
(286) 16.63 ft on 05/03/2012
(287) 16.57 ft on 04/09/2000
(288) 16.50 ft on 10/27/2004
(289) 16.43 ft on 12/22/2012
(290) 16.30 ft on 03/25/2019 (P)
(291) 16.23 ft on 02/22/2019 (P)
(292) 16.10 ft on 02/27/2000
(293) 15.26 ft on 05/03/2019 (P)
(294) 13.05 ft on 09/21/1954

(P): Preliminary values subject to further review.