Historic Crests
(1) 33.00 ft on 07/26/1916
(2) 32.00 ft on 04/15/1936
(3) 30.00 ft on 08/26/1928
(4) 29.80 ft on 10/10/1929
(5) 23.37 ft on 02/14/2020
(6) 22.84 ft on 03/28/2003
(7) 22.82 ft on 01/06/2016
(8) 22.80 ft on 09/26/1945
(9) 22.13 ft on 10/10/2015
(10) 21.87 ft on 03/09/1987
(11) 21.67 ft on 02/10/1998
(12) 21.28 ft on 03/23/1975
(13) 20.81 ft on 01/18/1993
(14) 20.62 ft on 11/03/1990
(15) 20.61 ft on 03/01/1995
(16) 20.60 ft on 03/29/1944
(17) 20.50 ft on 10/24/1964
(18) 19.83 ft on 02/13/2010
(19) 19.67 ft on 03/06/1979
(20) 19.41 ft on 10/09/1989
(21) 19.20 ft on 04/05/1980
(22) 19.19 ft on 12/30/2018
(23) 18.98 ft on 11/17/2015
(24) 18.40 ft on 04/10/1973
(25) 17.81 ft on 07/20/2013
(26) 17.40 ft on 09/18/2004
(27) 17.23 ft on 05/30/2020
(28) 17.13 ft on 01/14/1982
(29) 16.80 ft on 03/11/1971
(30) 16.50 ft on 01/14/1946
(31) 16.29 ft on 10/19/1990
(32) 16.12 ft on 08/28/1994
(33) 16.04 ft on 12/07/1992
(34) 16.00 ft on 04/27/1969
(35) 15.92 ft on 05/15/2013
(36) 15.90 ft on 03/17/1991
(37) 15.75 ft on 12/14/1985
(38) 15.41 ft on 03/14/2007
(39) 15.40 ft on 03/27/1983
(40) 15.08 ft on 02/05/1978
(41) 15.06 ft on 02/12/1996
(42) 15.00 ft on 10/20/1976
(43) 15.00 ft on 05/18/1984
(44) 15.00 ft on 03/09/1984
(45) 14.70 ft on 04/08/1977
(46) 14.55 ft on 03/11/1997
(47) 14.40 ft on 12/14/1986
(48) 14.35 ft on 04/07/2005
(49) 14.00 ft on 03/31/1970
(50) 13.62 ft on 06/19/1992
(51) 13.52 ft on 10/04/2004
(52) 13.47 ft on 03/14/1989
(53) 13.30 ft on 01/02/2014
(54) 13.22 ft on 05/01/2015
(55) 13.13 ft on 04/03/2009
(56) 13.12 ft on 04/03/2020
(57) 13.11 ft on 03/18/2014
(58) 13.09 ft on 05/02/2017
(59) 13.08 ft on 05/01/2014
(60) 13.06 ft on 10/10/2016
(61) 13.02 ft on 04/19/2019
(62) 13.01 ft on 05/10/2020
(63) 12.95 ft on 02/07/1999
(64) 12.88 ft on 06/10/2018
(65) 12.83 ft on 06/19/2013
(66) 12.82 ft on 01/12/2006
(67) 12.81 ft on 05/03/2018
(68) 12.80 ft on 06/17/2019
(69) 12.30 ft on 01/11/2015
(70) 12.24 ft on 05/30/2017
(71) 11.90 ft on 08/29/2020
(72) 11.81 ft on 10/14/2018
(73) 11.76 ft on 02/19/2013
(74) 11.71 ft on 03/29/2000
(75) 11.60 ft on 02/15/2018
(76) 11.52 ft on 03/08/2015
(77) 11.45 ft on 11/06/2018
(78) 11.42 ft on 04/25/2020
(79) 11.16 ft on 03/23/2016
(80) 11.08 ft on 03/29/2013
(81) 11.06 ft on 01/30/1988
(82) 11.02 ft on 02/01/2000
(83) 10.63 ft on 09/18/2018
(84) 10.50 ft on 03/18/1934
(85) 10.23 ft on 05/30/2016
(86) 10.00 ft on 08/07/2018
(87) 10.00 ft on 04/27/2020

(P): Preliminary values subject to further review.