Historic Crests
(1) 20.17 ft on 06/01/1989
(2) 19.82 ft on 08/04/1984
(3) 19.76 ft on 09/03/1993
(4) 19.73 ft on 05/26/1998
(5) 19.60 ft on 08/27/1994
(6) 18.52 ft on 07/26/2003
(7) 18.38 ft on 08/26/1992
(8) 18.01 ft on 08/14/2001
(9) 17.86 ft on 07/02/1985
(10) 17.64 ft on 05/16/2005
(11) 17.54 ft on 05/26/2002
(12) 17.38 ft on 05/20/1990
(13) 17.34 ft on 05/23/2011
(14) 17.32 ft on 05/23/2009
(15) 17.10 ft on 08/03/1991
(16) 17.10 ft on 09/06/2012
(17) 16.80 ft on 07/06/2010
(18) 16.68 ft on 05/22/2006
(19) 16.65 ft on 07/02/1983
(20) 16.60 ft on 06/01/1987
(21) 16.50 ft on 05/12/1997
(22) 16.47 ft on 05/25/2008
(23) 16.31 ft on 06/07/2000
(24) 16.24 ft on 08/05/1988
(25) 16.21 ft on 09/05/1986
(26) 16.02 ft on 05/24/1996
(27) 16.01 ft on 05/26/2004
(28) 15.49 ft on 07/17/1999
(29) 15.26 ft on 05/10/1995
(30) 14.58 ft on 08/16/2007

(P): Preliminary values subject to further review.