Historic Crests
(1) 30.68 ft on 09/21/2018
(2) 29.80 ft on 09/23/1945
(3) 28.58 ft on 10/13/2016
(4) 26.00 ft on 10/09/1964
(5) 24.92 ft on 03/03/1979
(6) 24.90 ft on 09/12/1996
(7) 24.77 ft on 02/08/1973
(8) 24.30 ft on 07/21/1975
(9) 24.20 ft on 04/06/1973
(10) 24.16 ft on 03/24/1998
(11) 23.75 ft on 11/19/2018
(12) 23.72 ft on 04/15/2003
(13) 23.61 ft on 03/06/1987
(14) 23.50 ft on 03/22/1975
(15) 23.34 ft on 08/19/1969
(16) 23.34 ft on 03/08/1971
(17) 23.30 ft on 09/20/1999
(18) 23.27 ft on 02/12/2020
(19) 22.90 ft on 01/18/1975
(20) 22.88 ft on 01/31/1978
(21) 22.88 ft on 12/21/1972
(22) 22.75 ft on 02/22/1995
(23) 22.71 ft on 02/23/1998
(24) 22.71 ft on 11/27/2006
(25) 22.68 ft on 02/09/1998
(26) 22.59 ft on 02/11/2010
(27) 22.51 ft on 12/28/2015
(28) 22.34 ft on 03/14/1998
(29) 22.34 ft on 09/10/1977
(30) 22.07 ft on 03/23/1983
(31) 21.90 ft on 02/01/1998
(32) 21.88 ft on 01/05/2016
(33) 21.86 ft on 04/11/1993
(34) 21.80 ft on 01/27/1987
(35) 21.78 ft on 04/03/1984
(36) 21.65 ft on 03/07/1994
(37) 21.65 ft on 02/08/1972
(38) 21.63 ft on 07/06/2013
(39) 21.59 ft on 03/26/2003
(40) 21.58 ft on 03/29/1989
(41) 21.55 ft on 03/29/1989
(42) 21.49 ft on 07/05/1995
(43) 21.49 ft on 08/14/2003
(44) 21.48 ft on 06/12/2013
(45) 21.37 ft on 10/04/1999
(46) 21.36 ft on 10/03/2016
(47) 21.33 ft on 03/12/2014
(48) 21.30 ft on 06/15/1982
(49) 21.28 ft on 07/16/2013
(50) 21.25 ft on 03/10/1989
(51) 21.18 ft on 05/08/1989
(52) 21.13 ft on 10/07/2015
(53) 21.09 ft on 12/19/2018
(54) 21.09 ft on 02/27/2019
(55) 21.09 ft on 01/08/2019
(56) 21.06 ft on 12/14/2018
(57) 21.03 ft on 03/25/1980
(58) 20.97 ft on 01/03/2019
(59) 20.97 ft on 01/15/2014
(60) 20.94 ft on 02/21/1970
(61) 20.93 ft on 04/30/2017
(62) 20.91 ft on 05/30/2003
(63) 20.91 ft on 03/10/2003
(64) 20.90 ft on 06/27/1973
(65) 20.86 ft on 01/17/2019
(66) 20.86 ft on 01/14/1977
(67) 20.85 ft on 03/09/1993
(68) 20.85 ft on 05/04/1997
(69) 20.84 ft on 02/24/2014
(70) 20.81 ft on 01/16/1993
(71) 20.81 ft on 12/25/2018
(72) 20.79 ft on 07/29/1997
(73) 20.79 ft on 03/31/1993
(74) 20.77 ft on 11/07/2015
(75) 20.77 ft on 09/10/2008
(76) 20.77 ft on 03/19/1993
(77) 20.76 ft on 11/13/2015
(78) 20.76 ft on 11/27/1985
(79) 20.73 ft on 02/08/2016
(80) 20.72 ft on 11/24/2015
(81) 20.70 ft on 10/21/1999
(82) 20.69 ft on 12/06/2018
(83) 20.68 ft on 10/12/1996
(84) 20.63 ft on 01/20/1995
(85) 20.60 ft on 08/10/1974
(86) 20.60 ft on 03/05/2009
(87) 20.58 ft on 02/19/1997
(88) 20.58 ft on 02/28/2016
(89) 20.53 ft on 10/07/1989
(90) 20.52 ft on 02/06/1985
(91) 20.50 ft on 01/03/2014
(92) 20.50 ft on 01/27/2019
(93) 20.48 ft on 01/28/1999
(94) 20.48 ft on 09/13/2004
(95) 20.46 ft on 03/09/2015
(96) 20.45 ft on 02/26/1989
(97) 20.43 ft on 01/16/1991
(98) 20.42 ft on 10/09/1995
(99) 20.40 ft on 06/18/2006
(100) 20.39 ft on 10/30/1990
(101) 20.37 ft on 03/07/2019
(102) 20.33 ft on 01/29/2010
(103) 20.30 ft on 01/31/1976
(104) 20.29 ft on 12/29/2006
(105) 20.28 ft on 03/12/1995
(106) 20.28 ft on 03/23/2014
(107) 20.28 ft on 05/19/2014
(108) 20.26 ft on 04/25/1987
(109) 20.26 ft on 02/20/2016
(110) 20.25 ft on 04/05/1990
(111) 20.24 ft on 01/12/1998
(112) 20.23 ft on 03/05/1995
(113) 20.18 ft on 07/21/1989
(114) 20.18 ft on 04/12/2019
(115) 20.18 ft on 11/29/2018
(116) 20.13 ft on 04/08/2001
(117) 20.12 ft on 02/04/2000
(118) 20.10 ft on 12/18/1989
(119) 20.08 ft on 01/15/2015
(120) 20.07 ft on 04/05/1994
(121) 20.03 ft on 11/30/1992
(122) 20.02 ft on 02/26/1990
(123) 20.01 ft on 04/23/2015
(124) 20.00 ft on 01/30/1996
(125) 19.96 ft on 11/12/1995
(126) 19.93 ft on 04/08/2008
(127) 19.91 ft on 04/19/2007
(128) 19.90 ft on 04/06/1991
(129) 19.90 ft on 04/28/1992
(130) 19.84 ft on 04/28/2018
(131) 19.84 ft on 10/15/2018
(132) 19.83 ft on 04/18/1989
(133) 19.83 ft on 04/13/1998
(134) 19.82 ft on 01/18/2005
(135) 19.79 ft on 04/19/2018
(136) 19.79 ft on 02/15/1981
(137) 19.78 ft on 07/07/2003
(138) 19.77 ft on 04/22/2014
(139) 19.76 ft on 12/27/2014
(140) 19.75 ft on 03/06/2007
(141) 19.69 ft on 11/16/2009
(142) 19.69 ft on 03/24/2019
(143) 19.66 ft on 06/22/1995
(144) 19.63 ft on 04/26/2019
(145) 19.59 ft on 12/29/2009
(146) 19.57 ft on 11/22/2002
(147) 19.55 ft on 06/01/1990
(148) 19.52 ft on 09/08/1999
(149) 19.48 ft on 08/23/1986
(150) 19.44 ft on 10/03/2010
(151) 19.43 ft on 01/26/2002
(152) 19.37 ft on 03/31/2012
(153) 19.35 ft on 09/02/2004
(154) 18.86 ft on 01/23/1988
(155) 18.70 ft on 08/17/2004
(156) 18.68 ft on 12/02/2011
(157) 18.48 ft on 09/15/1984

(P): Preliminary values subject to further review.