Historic Crests
(1) 42.00 ft on 08/17/1940
(2) 32.99 ft on 10/07/1972
(3) 31.91 ft on 04/28/1978
(4) 31.90 ft on 08/28/1908
(5) 31.24 ft on 10/26/1971
(6) 31.20 ft on 06/02/1889
(7) 30.92 ft on 04/27/1937
(8) 30.25 ft on 05/28/2003
(9) 30.17 ft on 10/14/2018
(10) 29.97 ft on 09/18/1999
(11) 28.98 ft on 11/05/1985
(12) 28.89 ft on 02/27/1979
(13) 28.70 ft on 07/27/1938
(14) 28.67 ft on 09/20/2003
(15) 28.39 ft on 03/21/1998
(16) 28.26 ft on 04/18/1987
(17) 28.04 ft on 09/01/2004
(18) 27.71 ft on 09/08/1996
(19) 27.39 ft on 05/20/2018
(20) 27.39 ft on 03/05/1993
(21) 26.40 ft on 07/19/1945
(22) 26.09 ft on 07/16/1975
(23) 25.92 ft on 05/18/2014
(24) 25.84 ft on 01/21/1936
(25) 25.32 ft on 10/02/1979
(26) 25.30 ft on 08/20/1955
(27) 25.30 ft on 01/08/1962
(28) 25.10 ft on 12/25/2015
(29) 25.00 ft on 04/27/1928
(30) 24.74 ft on 02/15/1984
(31) 24.71 ft on 09/08/1974
(32) 24.60 ft on 03/04/1994
(33) 24.17 ft on 12/01/1934
(34) 24.09 ft on 05/08/1958
(35) 23.91 ft on 04/30/1997
(36) 23.42 ft on 03/07/1932
(37) 23.42 ft on 04/17/1983
(38) 23.05 ft on 09/07/1999
(39) 22.89 ft on 03/31/2001
(40) 22.71 ft on 11/14/2009
(41) 22.70 ft on 11/22/1952
(42) 22.67 ft on 12/31/1958
(43) 22.66 ft on 10/03/1929
(44) 22.46 ft on 10/10/2016
(45) 22.37 ft on 09/19/2018
(46) 22.37 ft on 02/16/1948
(47) 22.36 ft on 06/12/2019
(48) 22.36 ft on 10/08/2006
(49) 22.30 ft on 02/06/1998
(50) 22.25 ft on 03/31/2010
(51) 22.10 ft on 03/06/1929
(52) 21.95 ft on 03/22/2003
(53) 21.94 ft on 02/08/2020
(54) 21.90 ft on 11/26/1959
(55) 21.83 ft on 11/14/2018
(56) 21.83 ft on 03/31/1991
(57) 21.71 ft on 01/05/1985
(58) 21.43 ft on 02/25/2019
(59) 21.38 ft on 12/23/1951
(60) 21.06 ft on 03/23/2001
(61) 20.95 ft on 08/30/1939
(62) 20.79 ft on 12/26/2020
(63) 20.77 ft on 03/08/1963
(64) 20.74 ft on 01/29/1976
(65) 20.40 ft on 04/11/2003
(66) 20.39 ft on 01/21/1996
(67) 19.97 ft on 12/13/2008
(68) 19.90 ft on 03/10/1998
(69) 19.73 ft on 11/18/2006
(70) 19.63 ft on 03/06/1934
(71) 19.58 ft on 06/01/1971
(72) 19.56 ft on 07/06/2006
(73) 19.54 ft on 01/19/2013
(74) 19.51 ft on 02/23/1989
(75) 19.50 ft on 02/19/1998
(76) 19.49 ft on 06/19/2020
(77) 19.44 ft on 11/30/1948
(78) 19.33 ft on 11/24/2006
(79) 19.31 ft on 06/07/2001
(80) 19.31 ft on 05/07/2016
(81) 19.17 ft on 06/18/1966
(82) 19.10 ft on 09/27/1947
(83) 19.06 ft on 09/09/1992
(84) 18.95 ft on 02/09/1965
(85) 18.88 ft on 10/02/1955
(86) 18.80 ft on 01/02/1990
(87) 18.76 ft on 12/04/2009
(88) 18.70 ft on 02/17/2021
(89) 18.70 ft on 02/12/1946
(90) 18.68 ft on 03/21/2021
(91) 18.53 ft on 02/02/1957
(92) 18.36 ft on 02/07/1943
(93) 18.33 ft on 02/13/2020
(94) 18.15 ft on 09/21/1944
(95) 18.15 ft on 04/19/2000
(96) 18.07 ft on 12/27/2009
(97) 18.06 ft on 02/05/2016
(98) 18.05 ft on 07/14/2013
(99) 18.00 ft on 09/18/2020
(100) 17.98 ft on 04/18/1933
(101) 17.71 ft on 12/06/2020
(102) 17.67 ft on 11/13/2006
(103) 17.63 ft on 11/14/2020
(104) 17.51 ft on 12/10/2009
(105) 17.40 ft on 02/25/2016
(106) 17.21 ft on 05/29/1968
(107) 17.17 ft on 02/24/2003
(108) 17.13 ft on 03/29/2005
(109) 17.07 ft on 11/17/2018
(110) 17.02 ft on 11/16/1940
(111) 17.01 ft on 08/11/2003
(112) 16.99 ft on 03/22/2019
(113) 16.86 ft on 04/09/2014
(114) 16.77 ft on 05/26/2017
(115) 16.75 ft on 02/09/1961
(116) 16.70 ft on 07/25/1997
(117) 16.70 ft on 10/04/2015
(118) 16.69 ft on 12/16/2018
(119) 16.65 ft on 10/22/1976
(120) 16.63 ft on 05/20/2003
(121) 16.60 ft on 02/08/2004
(122) 16.59 ft on 05/02/2014
(123) 16.57 ft on 01/03/2007
(124) 16.56 ft on 02/17/2016
(125) 16.52 ft on 12/15/2003
(126) 16.49 ft on 01/27/2021
(127) 16.45 ft on 09/08/2008
(128) 16.42 ft on 06/08/2003
(129) 16.27 ft on 12/17/2020
(130) 16.27 ft on 03/08/1969
(131) 16.27 ft on 04/17/2018
(132) 16.11 ft on 01/12/2014
(133) 16.04 ft on 12/30/2018
(134) 15.95 ft on 11/02/1949
(135) 15.94 ft on 08/15/2004
(136) 15.94 ft on 04/01/2017
(137) 15.91 ft on 12/30/2013
(138) 15.88 ft on 04/07/1931
(139) 15.83 ft on 02/22/1967
(140) 15.82 ft on 12/06/2005
(141) 15.77 ft on 12/11/2004
(142) 15.76 ft on 05/26/1982
(143) 15.70 ft on 03/02/1954
(144) 15.66 ft on 07/10/2021 (P)
(145) 15.65 ft on 08/10/1942
(146) 15.59 ft on 04/16/2007
(147) 15.54 ft on 06/08/1981
(148) 15.54 ft on 10/16/2014
(149) 15.49 ft on 12/14/2009
(150) 15.47 ft on 02/19/2019
(151) 15.47 ft on 03/10/1995
(152) 15.46 ft on 01/09/2007
(153) 15.35 ft on 03/06/2008
(154) 15.30 ft on 01/16/2005
(155) 15.20 ft on 06/17/2000
(156) 15.14 ft on 04/26/2017
(157) 15.13 ft on 05/23/2003
(158) 15.12 ft on 03/21/1951
(159) 15.11 ft on 12/14/2002
(160) 15.09 ft on 07/03/2003
(161) 15.08 ft on 05/10/2008
(162) 14.98 ft on 02/07/1964
(163) 14.97 ft on 03/06/2015
(164) 14.84 ft on 01/16/1998
(165) 14.70 ft on 06/07/2009
(166) 14.59 ft on 11/06/2018 (P)
(167) 13.50 ft on 01/25/2019
(168) 13.32 ft on 08/25/2012
(169) 13.31 ft on 10/01/2010
(170) 12.80 ft on 05/04/2016
(171) 12.70 ft on 10/27/2018 (P)
(172) 12.54 ft on 08/03/2018
(173) 12.50 ft on 01/14/2019
(174) 12.37 ft on 03/04/2019

(P): Preliminary values subject to further review.