Historic Crests
(1) 26.08 ft on 05/21/1983
(2) 26.00 ft on 12/01/1926
(3) 26.00 ft on 05/01/1930
(4) 25.80 ft on 04/04/2000
(5) 25.41 ft on 01/13/2020
(6) 25.11 ft on 03/16/1973
(7) 24.76 ft on 04/23/1995
(8) 24.48 ft on 12/05/1983
(9) 24.39 ft on 04/30/1991
(10) 24.27 ft on 04/13/1979
(11) 24.15 ft on 02/22/2019
(12) 24.09 ft on 03/30/1951
(13) 24.03 ft on 12/19/1961
(14) 23.81 ft on 01/05/1949
(15) 23.42 ft on 05/29/1991
(16) 23.34 ft on 12/27/1982
(17) 23.32 ft on 01/20/2001
(18) 23.13 ft on 11/26/1979
(19) 23.08 ft on 01/05/1972
(20) 22.90 ft on 02/21/1991
(21) 22.87 ft on 12/23/1990
(22) 22.87 ft on 03/03/1997
(23) 22.83 ft on 02/12/1994
(24) 22.77 ft on 02/12/1965
(25) 22.64 ft on 04/12/1947
(26) 22.60 ft on 02/10/1946
(27) 22.54 ft on 01/21/1979
(28) 22.44 ft on 01/14/1989
(29) 22.42 ft on 12/04/1991
(30) 22.36 ft on 03/30/1944
(31) 22.36 ft on 03/04/1977
(32) 22.33 ft on 02/14/1948
(33) 22.27 ft on 11/30/2001
(34) 22.25 ft on 01/10/1967
(35) 22.24 ft on 12/16/2001
(36) 22.13 ft on 04/15/1991
(37) 22.12 ft on 03/15/1975
(38) 22.10 ft on 12/31/1969
(39) 22.04 ft on 05/09/1978
(40) 22.02 ft on 10/15/2009
(41) 21.93 ft on 04/14/1980
(42) 21.86 ft on 11/18/1957
(43) 21.82 ft on 03/01/1987
(44) 21.80 ft on 12/19/1968
(45) 21.77 ft on 03/17/1980
(46) 21.74 ft on 01/15/2020
(47) 21.67 ft on 06/30/2004
(48) 21.67 ft on 01/08/2009
(49) 21.63 ft on 12/06/1982
(50) 21.48 ft on 02/22/1971
(51) 21.47 ft on 04/22/2020
(52) 21.44 ft on 03/30/1980
(53) 21.43 ft on 03/28/1980
(54) 21.35 ft on 03/15/1950
(55) 21.30 ft on 02/11/2018
(56) 21.30 ft on 06/15/1989
(57) 21.21 ft on 01/27/2002
(58) 21.20 ft on 10/25/1984
(59) 21.20 ft on 12/25/1973
(60) 21.20 ft on 07/06/1940
(61) 21.19 ft on 04/15/2019
(62) 21.17 ft on 04/23/1996
(63) 21.16 ft on 01/23/1999
(64) 21.16 ft on 04/14/1955
(65) 21.15 ft on 04/08/2014
(66) 21.15 ft on 04/22/1982
(67) 21.15 ft on 04/22/1980
(68) 21.15 ft on 04/08/1983
(69) 21.14 ft on 02/24/2003
(70) 21.14 ft on 03/21/1980
(71) 21.14 ft on 01/06/1982
(72) 20.96 ft on 03/06/2004
(73) 20.92 ft on 05/06/1999
(74) 20.91 ft on 03/03/2009
(75) 20.91 ft on 01/30/1999
(76) 20.90 ft on 04/18/2011
(77) 20.84 ft on 12/12/2008
(78) 20.80 ft on 05/07/2009
(79) 20.78 ft on 03/13/2016
(80) 20.65 ft on 02/17/2001
(81) 20.62 ft on 05/03/2010
(82) 20.61 ft on 04/20/2015
(83) 20.61 ft on 05/03/1954
(84) 20.60 ft on 04/01/1961
(85) 20.60 ft on 02/10/1983
(86) 20.53 ft on 04/25/1983
(87) 20.52 ft on 03/16/2009
(88) 20.52 ft on 12/10/2004
(89) 20.51 ft on 02/26/2006
(90) 20.50 ft on 01/05/2019
(91) 20.49 ft on 03/08/1995
(92) 20.49 ft on 01/06/2007
(93) 20.45 ft on 09/26/2009
(94) 20.39 ft on 02/08/2004
(95) 20.39 ft on 04/14/1983
(96) 20.36 ft on 01/17/2013
(97) 20.36 ft on 03/05/1989
(98) 20.34 ft on 05/12/2019
(99) 20.34 ft on 01/22/1995
(100) 20.33 ft on 03/31/1991
(101) 20.32 ft on 04/05/1989
(102) 20.31 ft on 02/06/1983
(103) 20.31 ft on 02/21/1989
(104) 20.26 ft on 03/08/1983
(105) 20.25 ft on 04/15/2014
(106) 20.23 ft on 03/02/1989
(107) 20.23 ft on 03/15/2001
(108) 20.20 ft on 04/30/1966
(109) 20.20 ft on 03/01/2021
(110) 20.15 ft on 01/21/1990
(111) 20.12 ft on 03/06/1984
(112) 20.10 ft on 12/22/1951
(113) 20.02 ft on 04/10/2003
(114) 20.00 ft on 03/21/2002
(115) 20.00 ft on 03/03/1960
(116) 20.00 ft on 03/31/1976
(117) 19.99 ft on 03/14/2015
(118) 19.98 ft on 03/03/2001
(119) 19.98 ft on 03/29/2009
(120) 19.94 ft on 12/13/1982
(121) 19.92 ft on 07/02/1989
(122) 19.92 ft on 04/06/2017
(123) 19.89 ft on 03/30/1994
(124) 19.88 ft on 09/30/2002
(125) 19.85 ft on 06/09/1989
(126) 19.81 ft on 05/30/1998
(127) 19.75 ft on 01/23/1983
(128) 19.75 ft on 03/04/1979
(129) 19.74 ft on 01/31/1994
(130) 19.72 ft on 02/27/2018
(131) 19.71 ft on 04/26/1980
(132) 19.69 ft on 03/10/1998
(133) 19.68 ft on 01/06/2015
(134) 19.66 ft on 12/13/1999
(135) 19.65 ft on 03/04/1991
(136) 19.64 ft on 12/26/2019
(137) 19.64 ft on 04/15/2016
(138) 19.62 ft on 03/10/2011
(139) 19.61 ft on 03/23/2015
(140) 19.58 ft on 02/19/1995
(141) 19.58 ft on 04/25/1980
(142) 19.57 ft on 04/28/1980
(143) 19.53 ft on 05/09/1991
(144) 19.53 ft on 04/27/2010
(145) 19.52 ft on 11/27/1986
(146) 19.47 ft on 12/01/1982
(147) 19.42 ft on 07/15/1979
(148) 19.38 ft on 01/26/1982
(149) 19.36 ft on 01/21/1987
(150) 19.36 ft on 03/27/2013
(151) 19.35 ft on 02/25/2015
(152) 19.23 ft on 04/03/1993
(153) 19.17 ft on 04/06/2008
(154) 19.08 ft on 05/29/2015
(155) 19.04 ft on 06/14/2014
(156) 19.03 ft on 04/02/1981
(157) 18.99 ft on 01/23/2019
(158) 18.93 ft on 03/26/2012
(159) 18.92 ft on 03/08/2020
(160) 18.89 ft on 05/05/2013
(161) 18.76 ft on 02/14/2013
(162) 18.75 ft on 04/02/2016
(163) 18.66 ft on 01/27/2016
(164) 18.59 ft on 06/27/2017
(165) 18.57 ft on 04/02/2018
(166) 18.48 ft on 02/05/2008
(167) 18.47 ft on 11/03/2009
(168) 18.38 ft on 01/22/2010
(169) 18.30 ft on 03/07/2019
(170) 18.28 ft on 03/22/1986
(171) 18.26 ft on 02/06/2012
(172) 18.22 ft on 04/03/1988
(173) 17.54 ft on 02/07/2016
(174) 17.43 ft on 04/11/2018
(175) 17.39 ft on 03/12/2012
(176) 17.38 ft on 12/30/2012

(P): Preliminary values subject to further review.