Historic Crests
(1) 20.56 ft on 06/17/1999
(2) 20.18 ft on 05/16/1997
(3) 20.04 ft on 06/16/2002
(4) 19.74 ft on 05/19/2006
(5) 19.60 ft on 05/21/1991
(6) 19.54 ft on 05/30/1995
(7) 19.47 ft on 05/31/2017
(8) 19.46 ft on 05/15/1993
(9) 19.28 ft on 05/18/2008
(10) 19.24 ft on 05/04/1998
(11) 19.19 ft on 06/07/1996
(12) 18.91 ft on 04/22/2016
(13) 18.75 ft on 06/07/2011
(14) 18.59 ft on 10/21/2003
(15) 18.55 ft on 06/04/2007
(16) 18.27 ft on 05/13/2013
(17) 18.20 ft on 05/16/2012
(18) 18.17 ft on 05/17/2014
(19) 17.95 ft on 05/07/1992
(20) 17.83 ft on 06/08/2003
(21) 17.76 ft on 05/18/2010
(22) 17.65 ft on 05/22/2000
(23) 17.62 ft on 05/09/1994
(24) 17.50 ft on 05/31/2009
(25) 17.36 ft on 05/24/2001
(26) 17.35 ft on 05/24/2015
(27) 16.02 ft on 05/16/2005

(P): Preliminary values subject to further review.