Historic Crests
(1) 30.00 ft on 03/02/1997
(2) 26.70 ft on 04/04/2015
(3) 26.40 ft on 12/09/1978
(4) 26.15 ft on 05/03/2010
(5) 25.30 ft on 01/01/1951
(6) 25.00 ft on 03/05/1964
(7) 24.70 ft on 04/22/1972
(8) 24.40 ft on 04/13/2011
(9) 24.00 ft on 02/16/1989
(10) 23.50 ft on 04/05/2008
(11) 23.40 ft on 09/21/1979
(12) 23.40 ft on 03/21/2002
(13) 23.10 ft on 05/31/2004
(14) 23.00 ft on 03/29/1975
(15) 23.00 ft on 02/28/1962
(16) 22.60 ft on 05/01/1983
(17) 22.40 ft on 02/18/1976
(18) 22.30 ft on 01/11/1974
(19) 22.30 ft on 07/21/1998
(20) 22.10 ft on 09/24/2006
(21) 21.90 ft on 12/19/1990
(22) 21.70 ft on 12/09/1972
(23) 21.60 ft on 03/08/1956
(24) 21.60 ft on 09/27/2009
(25) 21.30 ft on 04/04/1957
(26) 21.10 ft on 03/07/1967
(27) 21.00 ft on 04/23/1984
(28) 20.90 ft on 05/19/1995
(29) 20.80 ft on 12/22/1970
(30) 20.60 ft on 05/08/1961
(31) 20.50 ft on 02/17/2003
(32) 20.50 ft on 03/10/1994
(33) 20.50 ft on 02/05/1997
(34) 20.20 ft on 10/19/2004
(35) 20.20 ft on 09/18/2004
(36) 20.20 ft on 02/19/2000
(37) 19.90 ft on 11/03/1991
(38) 19.90 ft on 01/22/1959
(39) 19.80 ft on 06/30/1998
(40) 19.70 ft on 05/06/1996
(41) 19.60 ft on 03/19/2013
(42) 19.56 ft on 07/06/2013
(43) 19.42 ft on 06/24/2017 (P)
(44) 19.40 ft on 05/04/2011
(45) 19.30 ft on 08/05/2009
(46) 19.30 ft on 03/06/2004
(47) 19.20 ft on 08/03/1958
(48) 19.20 ft on 02/12/1998
(49) 19.20 ft on 12/13/2007
(50) 19.10 ft on 02/05/2014
(51) 19.05 ft on 04/01/2017 (P)
(52) 19.00 ft on 07/09/1991
(53) 19.00 ft on 02/25/2011
(54) 19.00 ft on 01/08/1998
(55) 19.00 ft on 03/22/1955
(56) 19.00 ft on 05/19/2002
(57) 18.90 ft on 11/13/2003
(58) 18.80 ft on 03/01/2011
(59) 18.70 ft on 12/09/2009
(60) 18.70 ft on 04/04/1968
(61) 18.70 ft on 04/28/2002
(62) 18.60 ft on 01/14/2013
(63) 18.60 ft on 03/20/2008
(64) 18.60 ft on 03/05/1963
(65) 18.60 ft on 11/29/2011
(66) 18.60 ft on 01/25/2010
(67) 18.50 ft on 12/08/2013
(68) 18.50 ft on 01/24/2006
(69) 18.50 ft on 01/29/2009
(70) 18.30 ft on 01/09/1999
(71) 18.25 ft on 12/02/2015
(72) 18.20 ft on 02/23/1994
(73) 18.20 ft on 01/11/2008
(74) 18.20 ft on 05/01/2014
(75) 18.20 ft on 12/06/2014
(76) 18.10 ft on 07/15/2015
(77) 18.00 ft on 02/13/1966
(78) 18.00 ft on 02/02/1988

(P): Preliminary values subject to further review.