Historic Crests
(1) 20.28 ft on 06/23/1947
(2) 19.94 ft on 06/21/1954
(3) 18.45 ft on 04/08/1965
(4) 16.83 ft on 06/27/2010
(5) 16.47 ft on 04/01/1993
(6) 16.39 ft on 06/08/2008
(7) 16.39 ft on 07/14/1993
(8) 15.60 ft on 06/19/1984
(9) 15.58 ft on 03/17/2010
(10) 15.31 ft on 06/19/2014
(11) 15.27 ft on 03/14/2019
(12) 15.17 ft on 08/22/2007
(13) 15.04 ft on 03/20/2019
(14) 15.02 ft on 07/03/1993
(15) 14.66 ft on 05/30/1915
(16) 14.61 ft on 03/05/2018
(17) 14.31 ft on 03/05/1994
(18) 14.25 ft on 04/21/1993
(19) 14.18 ft on 03/14/2008
(20) 14.14 ft on 09/23/2018
(21) 14.00 ft on 04/01/1962
(22) 13.94 ft on 03/12/2010
(23) 13.90 ft on 05/18/1991
(24) 13.80 ft on 06/06/1991
(25) 13.61 ft on 06/17/1993
(26) 13.56 ft on 03/22/1917
(27) 13.49 ft on 06/14/1984
(28) 13.49 ft on 04/15/1969
(29) 13.49 ft on 03/28/1961
(30) 13.45 ft on 02/18/1984
(31) 13.35 ft on 08/25/1979
(32) 13.27 ft on 06/26/2005
(33) 13.19 ft on 05/04/2001
(34) 13.01 ft on 06/14/2008
(35) 12.79 ft on 06/08/1984
(36) 12.79 ft on 04/08/1951
(37) 12.58 ft on 03/30/1979
(38) 12.42 ft on 07/03/1983
(39) 12.36 ft on 08/20/2007
(40) 12.25 ft on 02/19/2011
(41) 12.25 ft on 06/27/2011
(42) 12.17 ft on 06/25/1994
(43) 12.13 ft on 09/01/1962
(44) 12.11 ft on 04/17/1983
(45) 12.06 ft on 02/11/2009
(46) 12.04 ft on 07/09/1920
(47) 12.02 ft on 05/04/1984
(48) 11.98 ft on 05/02/1984
(49) 11.94 ft on 05/02/1951
(50) 11.94 ft on 03/29/1960
(51) 11.92 ft on 08/16/1993
(52) 11.92 ft on 05/28/2013
(53) 11.89 ft on 04/13/2001
(54) 11.89 ft on 03/14/2007
(55) 11.88 ft on 03/07/1983
(56) 11.85 ft on 07/01/2014
(57) 11.82 ft on 06/27/1984
(58) 11.68 ft on 02/21/1997
(59) 11.55 ft on 02/19/1971
(60) 11.52 ft on 06/08/1993
(61) 11.33 ft on 06/16/1991
(62) 11.27 ft on 07/23/2010
(63) 11.17 ft on 02/23/1982
(64) 11.08 ft on 03/28/1951
(65) 10.99 ft on 12/16/2015
(66) 10.98 ft on 05/12/1993
(67) 10.86 ft on 03/29/1916
(68) 10.76 ft on 06/04/1918
(69) 10.71 ft on 05/24/2004
(70) 10.70 ft on 05/08/1991
(71) 10.55 ft on 02/27/1948
(72) 10.55 ft on 04/17/1984
(73) 10.49 ft on 06/19/1990
(74) 10.46 ft on 06/08/1917
(75) 10.41 ft on 06/10/1991
(76) 10.36 ft on 04/23/1999
(77) 10.28 ft on 06/17/1990
(78) 10.21 ft on 12/18/2016
(79) 10.20 ft on 03/28/1969
(80) 10.14 ft on 03/20/1986
(81) 10.13 ft on 06/16/1967
(82) 10.13 ft on 06/05/2008
(83) 10.07 ft on 04/24/1984
(84) 10.05 ft on 05/15/2005
(85) 10.04 ft on 07/11/1969
(86) 10.03 ft on 06/18/2001
(87) 10.01 ft on 03/17/1983
(88) 9.99 ft on 03/14/1973
(89) 9.98 ft on 06/15/1980
(90) 9.98 ft on 06/24/1981
(91) 9.91 ft on 04/28/1984
(92) 9.90 ft on 03/15/1971
(93) 9.90 ft on 05/30/2008
(94) 9.86 ft on 06/24/1919
(95) 9.86 ft on 04/10/1984
(96) 9.83 ft on 05/22/1959
(97) 9.78 ft on 06/27/2003
(98) 9.76 ft on 03/26/1915
(99) 9.73 ft on 03/19/1979
(100) 9.73 ft on 09/26/2016
(101) 9.71 ft on 04/29/1975
(102) 9.70 ft on 04/02/2001
(103) 9.70 ft on 05/02/2016
(104) 9.68 ft on 05/22/2017
(105) 9.55 ft on 06/19/2010
(106) 9.54 ft on 06/16/2004
(107) 9.52 ft on 06/22/1983
(108) 9.52 ft on 04/08/1986
(109) 9.47 ft on 05/26/1960
(110) 9.46 ft on 06/07/1918
(111) 9.43 ft on 05/14/1970
(112) 9.41 ft on 04/02/1952
(113) 9.41 ft on 07/29/1969
(114) 9.41 ft on 02/24/1995
(115) 9.40 ft on 10/13/1986
(116) 9.33 ft on 07/31/1964
(117) 9.33 ft on 05/31/1959
(118) 9.32 ft on 04/16/1999
(119) 9.30 ft on 05/26/1965
(120) 9.30 ft on 06/13/1999
(121) 9.29 ft on 05/27/2011
(122) 9.27 ft on 03/10/1992
(123) 9.27 ft on 02/22/2011
(124) 9.26 ft on 03/22/1915
(125) 9.22 ft on 03/18/1971
(126) 9.22 ft on 05/14/1986
(127) 9.17 ft on 03/24/2001
(128) 9.16 ft on 04/16/1991
(129) 9.11 ft on 04/22/1927
(130) 9.09 ft on 03/12/1995
(131) 9.08 ft on 03/06/1949
(132) 9.08 ft on 02/23/1984
(133) 9.08 ft on 10/20/2007
(134) 9.05 ft on 08/31/1993
(135) 9.04 ft on 04/26/2007
(136) 9.03 ft on 06/26/1998
(137) 9.02 ft on 03/13/1997
(138) 8.97 ft on 02/23/2016
(139) 8.95 ft on 09/18/2016
(140) 8.94 ft on 06/29/1998
(141) 8.92 ft on 04/17/1973
(142) 8.91 ft on 03/29/1971
(143) 8.89 ft on 05/30/1995
(144) 8.86 ft on 04/18/1919
(145) 8.85 ft on 04/07/2006
(146) 8.83 ft on 06/25/1975
(147) 8.83 ft on 04/27/1991
(148) 8.83 ft on 04/23/1992
(149) 8.81 ft on 03/25/1991
(150) 8.76 ft on 06/21/1996
(151) 8.76 ft on 04/07/1997
(152) 8.69 ft on 07/10/1982
(153) 8.69 ft on 05/21/2001
(154) 8.65 ft on 04/22/2011
(155) 8.63 ft on 07/14/1958
(156) 8.63 ft on 07/08/1978
(157) 8.60 ft on 04/07/1998
(158) 8.58 ft on 05/16/1995
(159) 8.56 ft on 03/26/1906
(160) 8.54 ft on 07/01/1951
(161) 8.54 ft on 04/23/1995
(162) 8.50 ft on 06/05/1965
(163) 8.48 ft on 09/28/1965
(164) 8.47 ft on 05/02/2006
(165) 8.38 ft on 06/17/2013
(166) 8.34 ft on 07/16/1992
(167) 8.33 ft on 05/26/1982
(168) 8.32 ft on 09/13/1964
(169) 8.31 ft on 04/26/2008
(170) 8.29 ft on 03/18/1997
(171) 8.26 ft on 03/09/1925
(172) 8.20 ft on 04/04/2007
(173) 8.19 ft on 10/05/1986
(174) 8.19 ft on 04/15/2010
(175) 8.17 ft on 05/29/1973
(176) 8.17 ft on 06/14/2010
(177) 8.16 ft on 04/13/1922
(178) 8.16 ft on 06/23/1974
(179) 8.16 ft on 03/20/1982
(180) 8.15 ft on 04/05/1984
(181) 8.15 ft on 10/04/2010
(182) 8.12 ft on 08/06/1972
(183) 8.12 ft on 04/17/1998
(184) 8.11 ft on 05/17/1998
(185) 8.11 ft on 08/11/2010
(186) 8.10 ft on 05/08/1973
(187) 8.08 ft on 07/31/2010
(188) 8.06 ft on 06/20/1914
(189) 8.06 ft on 07/18/2011
(190) 8.05 ft on 06/15/1995
(191) 8.04 ft on 07/12/2000
(192) 8.02 ft on 06/12/2005
(193) 7.99 ft on 10/21/1968
(194) 7.98 ft on 04/02/2016
(195) 7.96 ft on 03/26/1973
(196) 7.95 ft on 06/14/1994
(197) 7.94 ft on 11/23/1973
(198) 7.93 ft on 07/24/1979
(199) 7.93 ft on 06/25/2013
(200) 7.92 ft on 04/27/1985
(201) 7.91 ft on 07/06/1962
(202) 7.86 ft on 05/28/1921
(203) 7.86 ft on 03/04/1961
(204) 7.85 ft on 09/20/2004
(205) 7.84 ft on 06/09/1971
(206) 7.84 ft on 03/28/1984
(207) 7.81 ft on 07/08/1952
(208) 7.81 ft on 06/11/1954
(209) 7.81 ft on 07/05/1971
(210) 7.80 ft on 06/13/1953
(211) 7.80 ft on 05/20/1982
(212) 7.80 ft on 05/06/2003
(213) 7.76 ft on 12/28/1984
(214) 7.75 ft on 06/13/2015
(215) 7.73 ft on 10/04/1982
(216) 7.69 ft on 05/08/2007
(217) 7.68 ft on 04/16/1987
(218) 7.66 ft on 05/17/1905
(219) 7.66 ft on 07/09/1963
(220) 7.63 ft on 09/27/1973
(221) 7.63 ft on 08/30/2015
(222) 7.56 ft on 06/04/1986
(223) 7.55 ft on 05/30/1984
(224) 7.55 ft on 06/28/1999
(225) 7.54 ft on 06/21/1998
(226) 7.53 ft on 06/28/1978
(227) 7.51 ft on 11/13/1982
(228) 7.51 ft on 05/09/1997
(229) 7.49 ft on 11/27/2015
(230) 7.48 ft on 09/24/1986
(231) 7.43 ft on 05/06/2013
(232) 7.42 ft on 09/09/2016
(233) 7.42 ft on 05/18/1965
(234) 7.40 ft on 05/31/2016
(235) 7.39 ft on 07/20/2016
(236) 7.39 ft on 06/29/2013
(237) 7.38 ft on 05/30/1986
(238) 7.36 ft on 03/08/1950
(239) 7.35 ft on 07/07/1986
(240) 7.35 ft on 05/18/2015
(241) 7.34 ft on 09/30/1973
(242) 7.33 ft on 06/03/1963
(243) 7.31 ft on 05/23/1984
(244) 7.28 ft on 11/03/1992
(245) 7.28 ft on 06/07/1980
(246) 7.28 ft on 04/16/1982
(247) 7.27 ft on 07/30/1979
(248) 7.26 ft on 04/02/1973
(249) 7.26 ft on 09/15/1978
(250) 7.25 ft on 04/13/2008
(251) 7.22 ft on 05/04/1973
(252) 7.22 ft on 08/03/1981
(253) 7.22 ft on 06/09/1982
(254) 7.21 ft on 06/30/1995
(255) 7.14 ft on 10/02/2005
(256) 7.12 ft on 03/29/1995
(257) 7.07 ft on 12/28/1982
(258) 7.04 ft on 03/25/1923
(259) 7.03 ft on 05/14/2010
(260) 7.02 ft on 05/31/1998
(261) 7.00 ft on 06/23/2015
(262) 6.99 ft on 04/01/1966
(263) 6.96 ft on 04/26/1955
(264) 6.96 ft on 04/23/2005
(265) 6.87 ft on 03/15/2016
(266) 6.86 ft on 07/28/1997
(267) 6.42 ft on 05/28/2012
(268) 6.32 ft on 05/12/2002
(269) 6.31 ft on 05/09/1988
(270) 6.08 ft on 05/30/1957
(271) 6.07 ft on 05/04/1977
(272) 5.86 ft on 05/25/1989
(273) 5.82 ft on 06/29/1968
(274) 5.69 ft on 09/21/1926
(275) 5.63 ft on 03/28/1956
(276) 5.63 ft on 03/15/1976
(277) 5.18 ft on 04/05/1924

(P): Preliminary values subject to further review.