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Hydrograph River at a Glance Download
Columbia River at St. Helens Stage (ft)Observed: 6.1 ft at 5:54AM May 17, 2015Observed: 6.06 ft at 6:00AM May 17, 2015Observed: 6.03 ft at 6:06AM May 17, 2015Observed: 6 ft at 6:12AM May 17, 2015Observed: 5.97 ft at 6:18AM May 17, 2015Observed: 5.94 ft at 6:24AM May 17, 2015Observed: 5.9 ft at 6:30AM May 17, 2015Observed: 5.86 ft at 6:36AM May 17, 2015Observed: 5.79 ft at 6:42AM May 17, 2015Observed: 5.73 ft at 6:54AM May 17, 2015Observed: 5.7 ft at 7:00AM May 17, 2015Observed: 5.66 ft at 7:06AM May 17, 2015Observed: 5.62 ft at 7:12AM May 17, 2015Observed: 5.58 ft at 7:18AM May 17, 2015Observed: 5.52 ft at 7:24AM May 17, 2015Observed: 5.46 ft at 7:30AM May 17, 2015Observed: 5.42 ft at 7:36AM May 17, 2015Observed: 5.37 ft at 7:42AM May 17, 2015Observed: 5.31 ft at 7:48AM May 17, 2015Observed: 5.26 ft at 7:54AM May 17, 2015Observed: 5.21 ft at 8:00AM May 17, 2015Observed: 5.16 ft at 8:06AM May 17, 2015Observed: 5.1 ft at 8:12AM May 17, 2015Observed: 5.05 ft at 8:18AM May 17, 2015Observed: 4.99 ft at 8:24AM May 17, 2015Observed: 4.94 ft at 8:30AM May 17, 2015Observed: 4.89 ft at 8:36AM May 17, 2015Observed: 4.83 ft at 8:42AM May 17, 2015Observed: 4.79 ft at 8:48AM May 17, 2015Observed: 4.73 ft at 8:54AM May 17, 2015Observed: 4.69 ft at 9:00AM May 17, 2015Observed: 4.65 ft at 9:06AM May 17, 2015Observed: 4.6 ft at 9:12AM May 17, 2015Observed: 4.55 ft at 9:18AM May 17, 2015Observed: 4.51 ft at 9:24AM May 17, 2015Observed: 4.47 ft at 9:30AM May 17, 2015Observed: 4.43 ft at 9:36AM May 17, 2015Observed: 4.38 ft at 9:42AM May 17, 2015Observed: 4.35 ft at 9:48AM May 17, 2015Observed: 4.31 ft at 9:54AM May 17, 2015Observed: 4.27 ft at 10:00AM May 17, 2015Observed: 4.23 ft at 10:06AM May 17, 2015Observed: 4.19 ft at 10:12AM May 17, 2015Observed: 4.16 ft at 10:18AM May 17, 2015Observed: 4.12 ft at 10:24AM May 17, 2015Observed: 4.08 ft at 10:30AM May 17, 2015Observed: 4.04 ft at 10:36AM May 17, 2015Observed: 4 ft at 10:42AM May 17, 2015Observed: 3.96 ft at 10:48AM May 17, 2015Observed: 3.93 ft at 10:54AM May 17, 2015Observed: 3.89 ft at 11:00AM May 17, 2015Observed: 3.85 ft at 11:06AM May 17, 2015Observed: 3.81 ft at 11:12AM May 17, 2015Observed: 3.77 ft at 11:18AM May 17, 2015Observed: 3.74 ft at 11:24AM May 17, 2015Observed: 3.7 ft at 11:30AM May 17, 2015Observed: 3.66 ft at 11:36AM May 17, 2015Observed: 3.63 ft at 11:42AM May 17, 2015Observed: 3.6 ft at 11:48AM May 17, 2015Observed: 3.56 ft at 11:54AM May 17, 2015Observed: 3.52 ft at 12:00PM May 17, 2015Observed: 3.49 ft at 12:06PM May 17, 2015Observed: 3.45 ft at 12:12PM May 17, 2015Observed: 3.42 ft at 12:18PM May 17, 2015Observed: 3.39 ft at 12:24PM May 17, 2015Observed: 3.37 ft at 12:30PM May 17, 2015Observed: 3.34 ft at 12:36PM May 17, 2015Observed: 3.29 ft at 12:48PM May 17, 2015Observed: 3.27 ft at 12:54PM May 17, 2015Observed: 3.25 ft at 1:00PM May 17, 2015Observed: 3.24 ft at 1:06PM May 17, 2015Observed: 3.23 ft at 1:12PM May 17, 2015Observed: 3.23 ft at 1:18PM May 17, 2015Observed: 3.23 ft at 1:24PM May 17, 2015Observed: 3.24 ft at 1:30PM May 17, 2015Observed: 3.26 ft at 1:36PM May 17, 2015Observed: 3.29 ft at 1:42PM May 17, 2015Observed: 3.3 ft at 1:48PM May 17, 2015Observed: 3.35 ft at 1:54PM May 17, 2015Observed: 3.39 ft at 2:00PM May 17, 2015Observed: 3.46 ft at 2:06PM May 17, 2015Observed: 3.45 ft at 2:12PM May 17, 2015Observed: 3.47 ft at 2:18PM May 17, 2015Observed: 3.65 ft at 2:24PM May 17, 2015Observed: 3.76 ft at 2:30PM May 17, 2015Observed: 3.8 ft at 2:36PM May 17, 2015Observed: 3.86 ft at 2:42PM May 17, 2015Observed: 3.95 ft at 2:48PM May 17, 2015Observed: 4.05 ft at 2:54PM May 17, 2015Observed: 4.17 ft at 3:00PM May 17, 2015Observed: 4.3 ft at 3:06PM May 17, 2015Observed: 4.4 ft at 3:12PM May 17, 2015Observed: 4.49 ft at 3:18PM May 17, 2015Observed: 4.61 ft at 3:24PM May 17, 2015Observed: 4.7 ft at 3:30PM May 17, 2015Observed: 4.81 ft at 3:36PM May 17, 2015Observed: 4.91 ft at 3:42PM May 17, 2015Observed: 5.01 ft at 3:48PM May 17, 2015Observed: 5.1 ft at 3:54PM May 17, 2015Observed: 5.18 ft at 4:00PM May 17, 2015Observed: 5.26 ft at 4:06PM May 17, 2015Observed: 5.32 ft at 4:12PM May 17, 2015Observed: 5.39 ft at 4:18PM May 17, 2015Observed: 5.45 ft at 4:24PM May 17, 2015Observed: 5.49 ft at 4:30PM May 17, 2015Observed: 5.53 ft at 4:36PM May 17, 2015Observed: 5.57 ft at 4:42PM May 17, 2015Observed: 5.61 ft at 4:48PM May 17, 2015Observed: 5.64 ft at 5:00PM May 17, 2015Observed: 5.64 ft at 5:06PM May 17, 2015Observed: 5.6 ft at 5:12PM May 17, 2015Observed: 5.61 ft at 5:18PM May 17, 2015Observed: 5.59 ft at 5:24PM May 17, 2015Observed: 5.61 ft at 5:30PM May 17, 2015Observed: 5.61 ft at 5:36PM May 17, 2015Observed: 5.61 ft at 5:42PM May 17, 2015Observed: 5.57 ft at 5:48PM May 17, 2015Observed: 5.49 ft at 5:54PM May 17, 2015Observed: 5.44 ft at 6:00PM May 17, 2015Observed: 5.38 ft at 6:06PM May 17, 2015Observed: 5.33 ft at 6:12PM May 17, 2015Observed: 5.31 ft at 6:18PM May 17, 2015Observed: 5.28 ft at 6:24PM May 17, 2015Observed: 5.24 ft at 6:30PM May 17, 2015Observed: 5.21 ft at 6:36PM May 17, 2015Observed: 5.17 ft at 6:42PM May 17, 2015Observed: 5.15 ft at 6:48PM May 17, 2015Observed: 5.12 ft at 6:54PM May 17, 2015Observed: 5.11 ft at 7:00PM May 17, 2015Observed: 5.1 ft at 7:06PM May 17, 2015Observed: 5.07 ft at 7:12PM May 17, 2015Observed: 5.06 ft at 7:18PM May 17, 2015Observed: 5.04 ft at 7:24PM May 17, 2015Observed: 5.02 ft at 7:30PM May 17, 2015Observed: 5 ft at 7:36PM May 17, 2015Observed: 4.99 ft at 7:42PM May 17, 2015Observed: 4.96 ft at 7:48PM May 17, 2015Observed: 4.94 ft at 7:54PM May 17, 2015Observed: 4.92 ft at 8:00PM May 17, 2015Observed: 4.9 ft at 8:06PM May 17, 2015Observed: 4.87 ft at 8:12PM May 17, 2015Observed: 4.84 ft at 8:18PM May 17, 2015Observed: 4.81 ft at 8:24PM May 17, 2015Observed: 4.78 ft at 8:30PM May 17, 2015Observed: 4.75 ft at 8:36PM May 17, 2015Observed: 4.73 ft at 8:42PM May 17, 2015Observed: 4.69 ft at 8:48PM May 17, 2015Observed: 4.65 ft at 8:54PM May 17, 2015Observed: 4.61 ft at 9:00PM May 17, 2015Observed: 4.56 ft at 9:06PM May 17, 2015Observed: 4.51 ft at 9:12PM May 17, 2015Observed: 4.47 ft at 9:18PM May 17, 2015Observed: 4.43 ft at 9:24PM May 17, 2015Observed: 4.37 ft at 9:30PM May 17, 2015Observed: 4.34 ft at 9:36PM May 17, 2015Observed: 4.29 ft at 9:42PM May 17, 2015Observed: 4.25 ft at 9:48PM May 17, 2015Observed: 4.2 ft at 9:54PM May 17, 2015Observed: 4.16 ft at 10:00PM May 17, 2015Observed: 4.12 ft at 10:06PM May 17, 2015Observed: 4.08 ft at 10:12PM May 17, 2015Observed: 4.04 ft at 10:18PM May 17, 2015Observed: 4 ft at 10:24PM May 17, 2015Observed: 3.96 ft at 10:30PM May 17, 2015Observed: 3.93 ft at 10:36PM May 17, 2015Observed: 3.89 ft at 10:42PM May 17, 2015Observed: 3.87 ft at 10:48PM May 17, 2015Observed: 3.85 ft at 10:54PM May 17, 2015Observed: 3.81 ft at 11:00PM May 17, 2015Observed: 3.78 ft at 11:06PM May 17, 2015Observed: 3.75 ft at 11:12PM May 17, 2015Observed: 3.74 ft at 11:18PM May 17, 2015Observed: 3.7 ft at 11:24PM May 17, 2015Observed: 3.68 ft at 11:30PM May 17, 2015Observed: 3.65 ft at 11:36PM May 17, 2015Observed: 3.64 ft at 11:42PM May 17, 2015Observed: 3.61 ft at 11:48PM May 17, 2015Observed: 3.6 ft at 11:54PM May 17, 2015Observed: 3.57 ft at 12:00AM May 18, 2015Observed: 3.55 ft at 12:06AM May 18, 2015Observed: 3.54 ft at 12:12AM May 18, 2015Observed: 3.54 ft at 12:18AM May 18, 2015Observed: 3.53 ft at 12:24AM May 18, 2015Observed: 3.53 ft at 12:30AM May 18, 2015Observed: 3.53 ft at 12:36AM May 18, 2015Observed: 3.55 ft at 12:42AM May 18, 2015Observed: 3.56 ft at 12:48AM May 18, 2015Observed: 3.59 ft at 12:54AM May 18, 2015Observed: 3.63 ft at 1:00AM May 18, 2015Observed: 3.68 ft at 1:06AM May 18, 2015Observed: 3.74 ft at 1:12AM May 18, 2015Observed: 3.89 ft at 1:24AM May 18, 2015Observed: 3.99 ft at 1:30AM May 18, 2015Observed: 4.09 ft at 1:36AM May 18, 2015Observed: 4.2 ft at 1:42AM May 18, 2015Observed: 4.33 ft at 1:48AM May 18, 2015Observed: 4.45 ft at 1:54AM May 18, 2015Observed: 4.59 ft at 2:00AM May 18, 2015Observed: 4.72 ft at 2:06AM May 18, 2015Observed: 4.86 ft at 2:12AM May 18, 2015Observed: 4.99 ft at 2:18AM May 18, 2015Observed: 5.1 ft at 2:24AM May 18, 2015Observed: 5.23 ft at 2:30AM May 18, 2015Observed: 5.36 ft at 2:36AM May 18, 2015Observed: 5.52 ft at 2:42AM May 18, 2015Observed: 5.65 ft at 2:48AM May 18, 2015Observed: 5.77 ft at 2:54AM May 18, 2015Observed: 5.88 ft at 3:00AM May 18, 2015Observed: 5.98 ft at 3:06AM May 18, 2015Observed: 6.06 ft at 3:12AM May 18, 2015Observed: 6.14 ft at 3:18AM May 18, 2015Observed: 6.21 ft at 3:24AM May 18, 2015Observed: 6.28 ft at 3:30AM May 18, 2015Observed: 6.35 ft at 3:36AM May 18, 2015Observed: 6.41 ft at 3:42AM May 18, 2015Observed: 6.47 ft at 3:48AM May 18, 2015Observed: 6.53 ft at 3:54AM May 18, 2015Observed: 6.58 ft at 4:00AM May 18, 2015Observed: 6.64 ft at 4:06AM May 18, 2015Observed: 6.69 ft at 4:12AM May 18, 2015Observed: 6.73 ft at 4:18AM May 18, 2015Observed: 6.77 ft at 4:24AM May 18, 2015Observed: 6.8 ft at 4:30AM May 18, 2015Observed: 6.84 ft at 4:36AM May 18, 2015Observed: 6.88 ft at 4:42AM May 18, 2015Observed: 6.92 ft at 4:48AM May 18, 2015Observed: 6.94 ft at 4:54AM May 18, 2015Observed: 6.96 ft at 5:00AM May 18, 2015Observed: 6.97 ft at 5:06AM May 18, 2015Observed: 6.97 ft at 5:12AM May 18, 2015Observed: 6.95 ft at 5:18AM May 18, 2015Observed: 6.92 ft at 5:24AM May 18, 2015Observed: 6.89 ft at 5:30AM May 18, 2015Observed: 6.85 ft at 5:36AM May 18, 2015Observed: 6.81 ft at 5:42AM May 18, 2015Observed: 6.76 ft at 5:48AM May 18, 2015Observed: 6.71 ft at 5:54AM May 18, 2015Observed: 6.67 ft at 6:00AM May 18, 2015Observed: 6.63 ft at 6:06AM May 18, 2015Observed: 6.58 ft at 6:12AM May 18, 2015Observed: 6.55 ft at 6:18AM May 18, 2015Observed: 6.52 ft at 6:24AM May 18, 2015Observed: 6.49 ft at 6:30AM May 18, 2015Observed: 6.45 ft at 6:36AM May 18, 2015Observed: 6.41 ft at 6:42AM May 18, 2015Observed: 6.38 ft at 6:48AM May 18, 2015Observed: 6.36 ft at 6:54AM May 18, 2015Observed: 6.33 ft at 7:00AM May 18, 2015Observed: 6.3 ft at 7:06AM May 18, 2015Observed: 6.26 ft at 7:12AM May 18, 2015Observed: 6.23 ft at 7:18AM May 18, 2015Observed: 6.18 ft at 7:24AM May 18, 2015Observed: 6.15 ft at 7:30AM May 18, 2015Observed: 6.11 ft at 7:36AM May 18, 2015Observed: 6.08 ft at 7:42AM May 18, 2015Observed: 6.04 ft at 7:48AM May 18, 2015Observed: 6 ft at 7:54AM May 18, 2015Observed: 5.95 ft at 8:00AM May 18, 2015Observed: 5.91 ft at 8:06AM May 18, 2015Observed: 5.86 ft at 8:12AM May 18, 2015Observed: 5.82 ft at 8:18AM May 18, 2015Observed: 5.77 ft at 8:24AM May 18, 2015Observed: 5.72 ft at 8:30AM May 18, 2015Observed: 5.68 ft at 8:36AM May 18, 2015Observed: 5.63 ft at 8:42AM May 18, 2015Observed: 5.58 ft at 8:48AM May 18, 2015Observed: 5.54 ft at 8:54AM May 18, 2015Observed: 5.48 ft at 9:00AM May 18, 2015Observed: 5.44 ft at 9:06AM May 18, 2015Observed: 5.39 ft at 9:12AM May 18, 2015Observed: 5.34 ft at 9:18AM May 18, 2015Observed: 5.3 ft at 9:24AM May 18, 2015Observed: 5.25 ft at 9:30AM May 18, 2015Observed: 5.22 ft at 9:36AM May 18, 2015Observed: 5.18 ft at 9:42AM May 18, 2015Observed: 5.13 ft at 9:48AM May 18, 2015Observed: 5.09 ft at 9:54AM May 18, 2015Observed: 5.05 ft at 10:00AM May 18, 2015Observed: 5.01 ft at 10:06AM May 18, 2015Observed: 4.97 ft at 10:12AM May 18, 2015Observed: 4.93 ft at 10:18AM May 18, 2015Observed: 4.9 ft at 10:24AM May 18, 2015Observed: 4.85 ft at 10:30AM May 18, 2015Observed: 4.82 ft at 10:36AM May 18, 2015Observed: 4.78 ft at 10:42AM May 18, 2015Observed: 4.75 ft at 10:48AM May 18, 2015Observed: 4.71 ft at 10:54AM May 18, 2015Observed: 4.67 ft at 11:00AM May 18, 2015Observed: 4.64 ft at 11:06AM May 18, 2015Observed: 4.6 ft at 11:12AM May 18, 2015Observed: 4.56 ft at 11:18AM May 18, 2015Observed: 4.53 ft at 11:24AM May 18, 2015Observed: 4.5 ft at 11:30AM May 18, 2015Observed: 4.47 ft at 11:36AM May 18, 2015Observed: 4.43 ft at 11:42AM May 18, 2015Observed: 4.4 ft at 11:48AM May 18, 2015Observed: 4.36 ft at 11:54AM May 18, 2015Observed: 4.32 ft at 12:00PM May 18, 2015Observed: 4.29 ft at 12:06PM May 18, 2015Observed: 4.25 ft at 12:12PM May 18, 2015Observed: 4.21 ft at 12:18PM May 18, 2015Observed: 4.18 ft at 12:24PM May 18, 2015Observed: 4.15 ft at 12:30PM May 18, 2015Observed: 4.11 ft at 12:36PM May 18, 2015Observed: 4.08 ft at 12:42PM May 18, 2015Observed: 4.05 ft at 12:48PM May 18, 2015Observed: 4.02 ft at 12:54PM May 18, 2015Observed: 4 ft at 1:00PM May 18, 2015Observed: 3.97 ft at 1:06PM May 18, 2015Observed: 3.94 ft at 1:12PM May 18, 2015Observed: 3.91 ft at 1:18PM May 18, 2015Observed: 3.89 ft at 1:24PM May 18, 2015Observed: 3.86 ft at 1:30PM May 18, 2015Observed: 3.84 ft at 1:36PM May 18, 2015Observed: 3.83 ft at 1:42PM May 18, 2015Observed: 3.82 ft at 1:48PM May 18, 2015Observed: 3.81 ft at 1:54PM May 18, 2015Observed: 3.81 ft at 2:00PM May 18, 2015Observed: 3.8 ft at 2:06PM May 18, 2015Observed: 3.81 ft at 2:12PM May 18, 2015Observed: 3.81 ft at 2:18PM May 18, 2015Observed: 3.82 ft at 2:24PM May 18, 2015Observed: 3.84 ft at 2:30PM May 18, 2015Observed: 3.87 ft at 2:36PM May 18, 2015Observed: 3.9 ft at 2:42PM May 18, 2015Observed: 3.93 ft at 2:48PM May 18, 2015Observed: 3.98 ft at 2:54PM May 18, 2015Observed: 4.04 ft at 3:00PM May 18, 2015Observed: 4.09 ft at 3:06PM May 18, 2015Observed: 4.16 ft at 3:12PM May 18, 2015Observed: 4.24 ft at 3:18PM May 18, 2015Observed: 4.31 ft at 3:24PM May 18, 2015Observed: 4.41 ft at 3:30PM May 18, 2015Observed: 4.49 ft at 3:36PM May 18, 2015Observed: 4.59 ft at 3:42PM May 18, 2015Observed: 4.69 ft at 3:48PM May 18, 2015Observed: 4.8 ft at 3:54PM May 18, 2015Observed: 4.9 ft at 4:00PM May 18, 2015Observed: 5 ft at 4:06PM May 18, 2015Observed: 5.11 ft at 4:12PM May 18, 2015Observed: 5.2 ft at 4:18PM May 18, 2015Observed: 5.31 ft at 4:24PM May 18, 2015Observed: 5.4 ft at 4:30PM May 18, 2015Observed: 5.49 ft at 4:36PM May 18, 2015Observed: 5.58 ft at 4:42PM May 18, 2015Observed: 5.67 ft at 4:48PM May 18, 2015Observed: 5.81 ft at 5:00PM May 18, 2015Observed: 5.88 ft at 5:06PM May 18, 2015Observed: 5.94 ft at 5:12PM May 18, 2015Observed: 6 ft at 5:18PM May 18, 2015Observed: 6.04 ft at 5:24PM May 18, 2015Observed: 6.08 ft at 5:30PM May 18, 2015Observed: 6.12 ft at 5:36PM May 18, 2015Observed: 6.14 ft at 5:42PM May 18, 2015Observed: 6.18 ft at 5:48PM May 18, 2015Observed: 6.2 ft at 5:54PM May 18, 2015Observed: 6.22 ft at 6:00PM May 18, 2015Observed: 6.23 ft at 6:06PM May 18, 2015Observed: 6.25 ft at 6:12PM May 18, 2015Observed: 6.24 ft at 6:18PM May 18, 2015Observed: 6.23 ft at 6:24PM May 18, 2015Observed: 6.22 ft at 6:30PM May 18, 2015Observed: 6.19 ft at 6:36PM May 18, 2015Observed: 6.17 ft at 6:42PM May 18, 2015Observed: 6.15 ft at 6:48PM May 18, 2015Observed: 6.12 ft at 6:54PM May 18, 2015Observed: 6.09 ft at 7:00PM May 18, 2015Observed: 6.05 ft at 7:06PM May 18, 2015Observed: 6.02 ft at 7:12PM May 18, 2015Observed: 5.98 ft at 7:18PM May 18, 2015Observed: 5.94 ft at 7:24PM May 18, 2015Observed: 5.92 ft at 7:30PM May 18, 2015Observed: 5.89 ft at 7:36PM May 18, 2015Observed: 5.86 ft at 7:42PM May 18, 2015Observed: 5.83 ft at 7:48PM May 18, 2015Observed: 5.81 ft at 7:54PM May 18, 2015Observed: 5.79 ft at 8:00PM May 18, 2015Observed: 5.77 ft at 8:06PM May 18, 2015Observed: 5.74 ft at 8:12PM May 18, 2015Observed: 5.73 ft at 8:18PM May 18, 2015Observed: 5.71 ft at 8:24PM May 18, 2015Observed: 5.7 ft at 8:30PM May 18, 2015Observed: 5.67 ft at 8:36PM May 18, 2015Observed: 5.66 ft at 8:42PM May 18, 2015Observed: 5.64 ft at 8:48PM May 18, 2015Observed: 5.61 ft at 8:54PM May 18, 2015Observed: 5.59 ft at 9:00PM May 18, 2015Observed: 5.56 ft at 9:06PM May 18, 2015Observed: 5.53 ft at 9:12PM May 18, 2015Observed: 5.52 ft at 9:18PM May 18, 2015Observed: 5.49 ft at 9:24PM May 18, 2015Observed: 5.46 ft at 9:30PM May 18, 2015Observed: 5.42 ft at 9:36PM May 18, 2015Observed: 5.41 ft at 9:42PM May 18, 2015Observed: 5.37 ft at 9:48PM May 18, 2015Observed: 5.33 ft at 9:54PM May 18, 2015Observed: 5.29 ft at 10:00PM May 18, 2015Observed: 5.26 ft at 10:06PM May 18, 2015Observed: 5.23 ft at 10:12PM May 18, 2015Observed: 5.18 ft at 10:18PM May 18, 2015Observed: 5.15 ft at 10:24PM May 18, 2015Observed: 5.09 ft at 10:30PM May 18, 2015Observed: 5.06 ft at 10:36PM May 18, 2015Observed: 5.02 ft at 10:42PM May 18, 2015Observed: 4.98 ft at 10:48PM May 18, 2015Observed: 4.97 ft at 10:54PM May 18, 2015Observed: 4.95 ft at 11:00PM May 18, 2015Observed: 4.92 ft at 11:06PM May 18, 2015Observed: 4.9 ft at 11:12PM May 18, 2015Observed: 4.85 ft at 11:18PM May 18, 2015Observed: 4.82 ft at 11:24PM May 18, 2015Observed: 4.8 ft at 11:30PM May 18, 2015Observed: 4.77 ft at 11:36PM May 18, 2015Observed: 4.74 ft at 11:42PM May 18, 2015Observed: 4.72 ft at 11:48PM May 18, 2015Observed: 4.7 ft at 11:54PM May 18, 2015Observed: 4.67 ft at 12:00AM May 19, 2015Observed: 4.65 ft at 12:06AM May 19, 2015Observed: 4.64 ft at 12:12AM May 19, 2015Observed: 4.62 ft at 12:18AM May 19, 2015Observed: 4.6 ft at 12:24AM May 19, 2015Observed: 4.58 ft at 12:30AM May 19, 2015Observed: 4.56 ft at 12:36AM May 19, 2015Observed: 4.55 ft at 12:42AM May 19, 2015Observed: 4.53 ft at 12:48AM May 19, 2015Observed: 4.52 ft at 12:54AM May 19, 2015Observed: 4.51 ft at 1:00AM May 19, 2015Observed: 4.5 ft at 1:06AM May 19, 2015Observed: 4.49 ft at 1:12AM May 19, 2015Observed: 4.49 ft at 1:18AM May 19, 2015Observed: 4.5 ft at 1:24AM May 19, 2015Observed: 4.51 ft at 1:30AM May 19, 2015Observed: 4.53 ft at 1:36AM May 19, 2015Observed: 4.55 ft at 1:42AM May 19, 2015Observed: 4.59 ft at 1:48AM May 19, 2015Observed: 4.64 ft at 1:54AM May 19, 2015Observed: 4.69 ft at 2:00AM May 19, 2015Observed: 4.75 ft at 2:06AM May 19, 2015Observed: 4.82 ft at 2:12AM May 19, 2015Observed: 4.91 ft at 2:18AM May 19, 2015Observed: 4.99 ft at 2:24AM May 19, 2015Observed: 5.1 ft at 2:30AM May 19, 2015Observed: 5.2 ft at 2:36AM May 19, 2015Observed: 5.31 ft at 2:42AM May 19, 2015Observed: 5.41 ft at 2:48AM May 19, 2015Observed: 5.53 ft at 2:54AM May 19, 2015Observed: 5.64 ft at 3:00AM May 19, 2015Observed: 5.75 ft at 3:06AM May 19, 2015Observed: 5.88 ft at 3:12AM May 19, 2015Observed: 5.99 ft at 3:18AM May 19, 2015Observed: 6.1 ft at 3:24AM May 19, 2015Observed: 6.22 ft at 3:30AM May 19, 2015Observed: 6.33 ft at 3:36AM May 19, 2015Observed: 6.43 ft at 3:42AM May 19, 2015Observed: 6.53 ft at 3:48AM May 19, 2015Observed: 6.63 ft at 3:54AM May 19, 2015Observed: 6.73 ft at 4:00AM May 19, 2015Observed: 6.81 ft at 4:06AM May 19, 2015Observed: 6.89 ft at 4:12AM May 19, 2015Observed: 6.97 ft at 4:18AM May 19, 2015Observed: 7.03 ft at 4:24AM May 19, 2015Observed: 7.1 ft at 4:30AM May 19, 2015Observed: 7.16 ft at 4:36AM May 19, 2015Observed: 7.21 ft at 4:42AM May 19, 2015Observed: 7.26 ft at 4:48AM May 19, 2015Observed: 7.3 ft at 4:54AM May 19, 2015Observed: 7.35 ft at 5:00AM May 19, 2015Observed: 7.39 ft at 5:06AM May 19, 2015Observed: 7.43 ft at 5:12AM May 19, 2015Observed: 7.46 ft at 5:18AM May 19, 2015Observed: 7.49 ft at 5:24AM May 19, 2015Observed: 7.5 ft at 5:30AM May 19, 2015Highest Observation: 7.51 ft at 5:36AM May 19, 2015Observed: 7.5 ft at 5:42AM May 19, 2015Observed: 7.49 ft at 5:48AM May 19, 2015Observed: 7.47 ft at 5:54AM May 19, 2015Observed: 7.44 ft at 6:00AM May 19, 2015Observed: 7.41 ft at 6:06AM May 19, 2015Observed: 7.38 ft at 6:12AM May 19, 2015Observed: 7.34 ft at 6:18AM May 19, 2015Observed: 7.3 ft at 6:24AM May 19, 2015Observed: 7.26 ft at 6:30AM May 19, 2015Observed: 7.22 ft at 6:36AM May 19, 2015Observed: 7.18 ft at 6:42AM May 19, 2015Observed: 7.15 ft at 6:48AM May 19, 2015Observed: 7.11 ft at 6:54AM May 19, 2015Observed: 7.08 ft at 7:00AM May 19, 2015Observed: 7.05 ft at 7:06AM May 19, 2015Observed: 7.03 ft at 7:12AM May 19, 2015Observed: 7 ft at 7:18AM May 19, 2015Observed: 6.97 ft at 7:24AM May 19, 2015Observed: 6.95 ft at 7:30AM May 19, 2015Observed: 6.92 ft at 7:36AM May 19, 2015Observed: 6.89 ft at 7:42AM May 19, 2015Observed: 6.86 ft at 7:48AM May 19, 2015Observed: 6.83 ft at 7:54AM May 19, 2015Observed: 6.8 ft at 8:00AM May 19, 2015Observed: 6.77 ft at 8:06AM May 19, 2015Observed: 6.73 ft at 8:12AM May 19, 2015Observed: 6.69 ft at 8:18AM May 19, 2015Observed: 6.66 ft at 8:24AM May 19, 2015Observed: 6.61 ft at 8:30AM May 19, 2015Observed: 6.57 ft at 8:36AM May 19, 2015Observed: 6.53 ft at 8:42AM May 19, 2015Observed: 6.49 ft at 8:48AM May 19, 2015Observed: 6.45 ft at 8:54AM May 19, 2015Observed: 6.4 ft at 9:00AM May 19, 2015Observed: 6.36 ft at 9:06AM May 19, 2015Observed: 6.32 ft at 9:12AM May 19, 2015Observed: 6.27 ft at 9:18AM May 19, 2015Observed: 6.22 ft at 9:24AM May 19, 2015Observed: 6.18 ft at 9:30AM May 19, 2015Observed: 6.13 ft at 9:36AM May 19, 2015Observed: 6.08 ft at 9:42AM May 19, 2015Observed: 6.04 ft at 9:48AM May 19, 2015Observed: 5.99 ft at 9:54AM May 19, 2015Observed: 5.95 ft at 10:00AM May 19, 2015Observed: 5.91 ft at 10:06AM May 19, 2015Observed: 5.85 ft at 10:12AM May 19, 2015Observed: 5.78 ft at 10:18AM May 19, 2015Observed: 5.75 ft at 10:24AM May 19, 2015Observed: 5.74 ft at 10:30AM May 19, 2015Observed: 5.69 ft at 10:36AM May 19, 2015Observed: 5.68 ft at 10:42AM May 19, 2015Observed: 5.62 ft at 10:48AM May 19, 2015Observed: 5.58 ft at 10:54AM May 19, 2015Observed: 5.55 ft at 11:00AM May 19, 2015Observed: 5.5 ft at 11:06AM May 19, 2015Observed: 5.48 ft at 11:12AM May 19, 2015Observed: 5.45 ft at 11:18AM May 19, 2015Observed: 5.41 ft at 11:24AM May 19, 2015Observed: 5.37 ft at 11:30AM May 19, 2015Observed: 5.34 ft at 11:36AM May 19, 2015Observed: 5.31 ft at 11:42AM May 19, 2015Observed: 5.27 ft at 11:48AM May 19, 2015Observed: 5.24 ft at 11:54AM May 19, 2015Observed: 5.2 ft at 12:00PM May 19, 2015Observed: 5.17 ft at 12:06PM May 19, 2015Observed: 5.14 ft at 12:12PM May 19, 2015Observed: 5.1 ft at 12:18PM May 19, 2015Observed: 5.06 ft at 12:24PM May 19, 2015Observed: 5.03 ft at 12:30PM May 19, 2015Observed: 4.99 ft at 12:36PM May 19, 2015Observed: 4.96 ft at 12:42PM May 19, 2015Observed: 4.93 ft at 12:48PM May 19, 2015Observed: 4.9 ft at 12:54PM May 19, 2015Observed: 4.86 ft at 1:00PM May 19, 2015Observed: 4.83 ft at 1:06PM May 19, 2015Observed: 4.8 ft at 1:12PM May 19, 2015Observed: 4.77 ft at 1:18PM May 19, 2015Observed: 4.74 ft at 1:24PM May 19, 2015Observed: 4.69 ft at 1:30PM May 19, 2015Observed: 4.67 ft at 1:36PM May 19, 2015Observed: 4.64 ft at 1:42PM May 19, 2015Observed: 4.61 ft at 1:48PM May 19, 2015Observed: 4.58 ft at 1:54PM May 19, 2015Observed: 4.56 ft at 2:00PM May 19, 2015Observed: 4.53 ft at 2:06PM May 19, 2015Observed: 4.5 ft at 2:12PM May 19, 2015Observed: 4.48 ft at 2:18PM May 19, 2015Observed: 4.46 ft at 2:24PM May 19, 2015Observed: 4.43 ft at 2:30PM May 19, 2015Observed: 4.41 ft at 2:36PM May 19, 2015Observed: 4.38 ft at 2:42PM May 19, 2015Observed: 4.42 ft at 2:48PM May 19, 2015Observed: 4.4 ft at 2:54PM May 19, 2015Observed: 4.37 ft at 3:00PM May 19, 2015Observed: 4.35 ft at 3:06PM May 19, 2015Observed: 4.36 ft at 3:12PM May 19, 2015Observed: 4.36 ft at 3:18PM May 19, 2015Observed: 4.39 ft at 3:24PM May 19, 2015Observed: 4.41 ft at 3:30PM May 19, 2015Observed: 4.44 ft at 3:36PM May 19, 2015Observed: 4.47 ft at 3:42PM May 19, 2015Observed: 4.5 ft at 3:48PM May 19, 2015Observed: 4.54 ft at 3:54PM May 19, 2015Observed: 4.59 ft at 4:00PM May 19, 2015Observed: 4.64 ft at 4:06PM May 19, 2015Observed: 4.7 ft at 4:12PM May 19, 2015Observed: 4.77 ft at 4:18PM May 19, 2015Observed: 4.84 ft at 4:24PM May 19, 2015Observed: 4.92 ft at 4:30PM May 19, 2015Observed: 5 ft at 4:36PM May 19, 2015Observed: 5.08 ft at 4:42PM May 19, 2015Observed: 5.34 ft at 5:00PM May 19, 2015Observed: 5.42 ft at 5:06PM May 19, 2015Observed: 5.52 ft at 5:12PM May 19, 2015Observed: 5.59 ft at 5:18PM May 19, 2015Observed: 5.68 ft at 5:24PM May 19, 2015Observed: 5.76 ft at 5:30PM May 19, 2015Observed: 5.83 ft at 5:36PM May 19, 2015Observed: 5.91 ft at 5:42PM May 19, 2015Observed: 5.97 ft at 5:48PM May 19, 2015Observed: 6.04 ft at 5:54PM May 19, 2015Observed: 6.08 ft at 6:00PM May 19, 2015Observed: 6.14 ft at 6:06PM May 19, 2015Observed: 6.17 ft at 6:12PM May 19, 2015Observed: 6.21 ft at 6:18PM May 19, 2015Observed: 6.24 ft at 6:24PM May 19, 2015Observed: 6.27 ft at 6:30PM May 19, 2015Observed: 6.29 ft at 6:36PM May 19, 2015Observed: 6.3 ft at 6:42PM May 19, 2015Observed: 6.3 ft at 6:48PM May 19, 2015Observed: 6.3 ft at 6:54PM May 19, 2015Observed: 6.3 ft at 7:00PM May 19, 2015Observed: 6.29 ft at 7:06PM May 19, 2015Observed: 6.27 ft at 7:12PM May 19, 2015Observed: 6.26 ft at 7:18PM May 19, 2015Observed: 6.23 ft at 7:24PM May 19, 2015Observed: 6.21 ft at 7:30PM May 19, 2015Observed: 6.18 ft at 7:36PM May 19, 2015Observed: 6.15 ft at 7:42PM May 19, 2015Observed: 6.12 ft at 7:48PM May 19, 2015Observed: 6.09 ft at 7:54PM May 19, 2015Observed: 6.06 ft at 8:00PM May 19, 2015Observed: 6.04 ft at 8:06PM May 19, 2015Observed: 6.02 ft at 8:12PM May 19, 2015Observed: 6 ft at 8:18PM May 19, 2015Observed: 5.97 ft at 8:24PM May 19, 2015Observed: 5.94 ft at 8:30PM May 19, 2015Observed: 5.93 ft at 8:36PM May 19, 2015Observed: 5.91 ft at 8:42PM May 19, 2015Observed: 5.89 ft at 8:48PM May 19, 2015Observed: 5.87 ft at 8:54PM May 19, 2015Observed: 5.85 ft at 9:00PM May 19, 2015Observed: 5.83 ft at 9:06PM May 19, 2015Observed: 5.8 ft at 9:12PM May 19, 2015Observed: 5.78 ft at 9:18PM May 19, 2015Observed: 5.76 ft at 9:24PM May 19, 2015Observed: 5.73 ft at 9:30PM May 19, 2015Observed: 5.71 ft at 9:36PM May 19, 2015Observed: 5.68 ft at 9:42PM May 19, 2015Observed: 5.66 ft at 9:48PM May 19, 2015Observed: 5.62 ft at 9:54PM May 19, 2015Observed: 5.59 ft at 10:00PM May 19, 2015Observed: 5.57 ft at 10:06PM May 19, 2015Observed: 5.53 ft at 10:12PM May 19, 2015Observed: 5.5 ft at 10:18PM May 19, 2015Observed: 5.46 ft at 10:24PM May 19, 2015Observed: 5.43 ft at 10:30PM May 19, 2015Observed: 5.4 ft at 10:36PM May 19, 2015Observed: 5.35 ft at 10:42PM May 19, 2015Observed: 5.31 ft at 10:48PM May 19, 2015Observed: 5.28 ft at 10:54PM May 19, 2015Observed: 5.25 ft at 11:00PM May 19, 2015Observed: 5.22 ft at 11:06PM May 19, 2015Observed: 5.04 ft at 11:12PM May 19, 2015Observed: 5.06 ft at 11:18PM May 19, 2015Observed: 5.04 ft at 11:24PM May 19, 2015Observed: 5.03 ft at 11:30PM May 19, 2015Observed: 5.04 ft at 11:36PM May 19, 2015Observed: 5.02 ft at 11:42PM May 19, 2015Observed: 4.98 ft at 11:48PM May 19, 2015Observed: 4.93 ft at 11:54PM May 19, 2015Observed: 4.9 ft at 12:00AM May 20, 2015Observed: 4.88 ft at 12:06AM May 20, 2015Observed: 4.85 ft at 12:12AM May 20, 2015Observed: 4.83 ft at 12:18AM May 20, 2015Observed: 4.79 ft at 12:24AM May 20, 2015Observed: 4.77 ft at 12:30AM May 20, 2015Observed: 4.75 ft at 12:36AM May 20, 2015Observed: 4.73 ft at 12:42AM May 20, 2015Observed: 4.71 ft at 12:48AM May 20, 2015Observed: 4.68 ft at 12:54AM May 20, 2015Observed: 4.66 ft at 1:00AM May 20, 2015Observed: 4.63 ft at 1:06AM May 20, 2015Observed: 4.6 ft at 1:12AM May 20, 2015Observed: 4.58 ft at 1:18AM May 20, 2015Observed: 4.57 ft at 1:24AM May 20, 2015Observed: 4.55 ft at 1:30AM May 20, 2015Observed: 4.53 ft at 1:36AM May 20, 2015Observed: 4.52 ft at 1:42AM May 20, 2015Observed: 4.51 ft at 1:48AM May 20, 2015Observed: 4.49 ft at 1:54AM May 20, 2015Observed: 4.48 ft at 2:00AM May 20, 2015Observed: 4.49 ft at 2:06AM May 20, 2015Observed: 4.49 ft at 2:12AM May 20, 2015Observed: 4.51 ft at 2:18AM May 20, 2015Observed: 4.52 ft at 2:24AM May 20, 2015Observed: 4.56 ft at 2:30AM May 20, 2015Observed: 4.6 ft at 2:36AM May 20, 2015Observed: 4.65 ft at 2:42AM May 20, 2015Observed: 4.7 ft at 2:48AM May 20, 2015Observed: 4.77 ft at 2:54AM May 20, 2015Observed: 4.84 ft at 3:00AM May 20, 2015Observed: 4.92 ft at 3:06AM May 20, 2015Observed: 5 ft at 3:12AM May 20, 2015Observed: 5.09 ft at 3:18AM May 20, 2015Observed: 5.18 ft at 3:24AM May 20, 2015Observed: 5.28 ft at 3:30AM May 20, 2015Observed: 5.39 ft at 3:36AM May 20, 2015Observed: 5.49 ft at 3:42AM May 20, 2015Observed: 5.6 ft at 3:48AM May 20, 2015Observed: 5.72 ft at 3:54AM May 20, 2015Observed: 5.82 ft at 4:00AM May 20, 2015Observed: 5.93 ft at 4:06AM May 20, 2015Observed: 6.04 ft at 4:12AM May 20, 2015Observed: 6.1 ft at 4:18AM May 20, 2015Observed: 6.25 ft at 4:24AM May 20, 2015Observed: 6.36 ft at 4:30AM May 20, 2015Observed: 6.44 ft at 4:36AM May 20, 2015Observed: 6.55 ft at 4:42AM May 20, 2015Observed: 6.6 ft at 4:48AM May 20, 2015Observed: 6.67 ft at 4:54AM May 20, 2015Observed: 6.72 ft at 5:00AM May 20, 2015Observed: 6.78 ft at 5:06AM May 20, 2015Observed: 6.83 ft at 5:12AM May 20, 2015Observed: 6.89 ft at 5:18AM May 20, 2015Observed: 6.94 ft at 5:24AM May 20, 2015Observed: 7 ft at 5:30AM May 20, 2015Observed: 7.04 ft at 5:36AM May 20, 2015Observed: 7.07 ft at 5:42AM May 20, 2015Observed: 7.11 ft at 5:48AM May 20, 2015Observed: 7.14 ft at 5:54AM May 20, 2015Observed: 7.16 ft at 6:00AM May 20, 2015Observed: 7.18 ft at 6:06AM May 20, 2015Observed: 7.2 ft at 6:12AM May 20, 2015Observed: 7.2 ft at 6:18AM May 20, 2015Observed: 7.2 ft at 6:24AM May 20, 2015Observed: 7.19 ft at 6:30AM May 20, 2015Observed: 7.18 ft at 6:36AM May 20, 2015Observed: 7.15 ft at 6:42AM May 20, 2015Observed: 7.11 ft at 6:48AM May 20, 2015Observed: 7.08 ft at 6:54AM May 20, 2015Observed: 7.04 ft at 7:00AM May 20, 2015Observed: 7 ft at 7:06AM May 20, 2015Observed: 6.95 ft at 7:12AM May 20, 2015Observed: 6.91 ft at 7:18AM May 20, 2015Observed: 6.87 ft at 7:24AM May 20, 2015Observed: 6.83 ft at 7:30AM May 20, 2015Observed: 6.79 ft at 7:36AM May 20, 2015Observed: 6.75 ft at 7:42AM May 20, 2015Observed: 6.72 ft at 7:48AM May 20, 2015Observed: 6.69 ft at 7:54AM May 20, 2015Observed: 6.66 ft at 8:00AM May 20, 2015Observed: 6.63 ft at 8:06AM May 20, 2015Observed: 6.61 ft at 8:12AM May 20, 2015Observed: 6.58 ft at 8:18AM May 20, 2015Observed: 6.56 ft at 8:24AM May 20, 2015Observed: 6.54 ft at 8:30AM May 20, 2015Observed: 6.5 ft at 8:36AM May 20, 2015Observed: 6.46 ft at 8:42AM May 20, 2015Observed: 6.42 ft at 8:48AM May 20, 2015Observed: 6.39 ft at 8:54AM May 20, 2015Observed: 6.36 ft at 9:00AM May 20, 2015Observed: 6.33 ft at 9:06AM May 20, 2015Observed: 6.25 ft at 9:12AM May 20, 2015Observed: 6.21 ft at 9:18AM May 20, 2015Observed: 6.14 ft at 9:24AM May 20, 2015Observed: 6.11 ft at 9:30AM May 20, 2015Observed: 6.08 ft at 9:36AM May 20, 2015Observed: 6.05 ft at 9:42AM May 20, 2015Observed: 6.02 ft at 9:48AM May 20, 2015Observed: 5.97 ft at 9:54AM May 20, 2015Observed: 5.92 ft at 10:00AM May 20, 2015Observed: 5.88 ft at 10:06AM May 20, 2015Observed: 5.82 ft at 10:12AM May 20, 2015Observed: 5.77 ft at 10:18AM May 20, 2015Observed: 5.73 ft at 10:24AM May 20, 2015Observed: 5.67 ft at 10:30AM May 20, 2015Observed: 5.62 ft at 10:36AM May 20, 2015Observed: 5.58 ft at 10:42AM May 20, 2015Observed: 5.54 ft at 10:48AM May 20, 2015Observed: 5.49 ft at 10:54AM May 20, 2015Observed: 5.45 ft at 11:00AM May 20, 2015Observed: 5.41 ft at 11:06AM May 20, 2015Observed: 5.36 ft at 11:12AM May 20, 2015Observed: 5.32 ft at 11:18AM May 20, 2015Observed: 5.29 ft at 11:24AM May 20, 2015Observed: 5.24 ft at 11:30AM May 20, 2015Observed: 5.21 ft at 11:36AM May 20, 2015Observed: 5.17 ft at 11:42AM May 20, 2015Observed: 5.13 ft at 11:48AM May 20, 2015Observed: 5.09 ft at 11:54AM May 20, 2015Observed: 5.06 ft at 12:00PM May 20, 2015Observed: 5.02 ft at 12:06PM May 20, 2015Observed: 4.98 ft at 12:12PM May 20, 2015Observed: 4.94 ft at 12:18PM May 20, 2015Observed: 4.91 ft at 12:24PM May 20, 2015Observed: 4.88 ft at 12:30PM May 20, 2015Observed: 4.85 ft at 12:36PM May 20, 2015Observed: 4.81 ft at 12:42PM May 20, 2015Observed: 4.8 ft at 12:48PM May 20, 2015Observed: 4.73 ft at 12:54PM May 20, 2015Observed: 4.66 ft at 1:00PM May 20, 2015Observed: 4.71 ft at 1:06PM May 20, 2015Observed: 4.65 ft at 1:12PM May 20, 2015Observed: 4.6 ft at 1:18PM May 20, 2015Observed: 4.53 ft at 1:24PM May 20, 2015Observed: 4.5 ft at 1:30PM May 20, 2015Observed: 4.48 ft at 1:36PM May 20, 2015Observed: 4.46 ft at 1:42PM May 20, 2015Observed: 4.44 ft at 1:48PM May 20, 2015Observed: 4.4 ft at 1:54PM May 20, 2015Observed: 4.36 ft at 2:00PM May 20, 2015Observed: 4.32 ft at 2:06PM May 20, 2015Observed: 4.3 ft at 2:12PM May 20, 2015Observed: 4.27 ft at 2:18PM May 20, 2015Observed: 4.24 ft at 2:24PM May 20, 2015Observed: 4.22 ft at 2:30PM May 20, 2015Observed: 4.18 ft at 2:36PM May 20, 2015Observed: 4.15 ft at 2:42PM May 20, 2015Observed: 4.13 ft at 2:48PM May 20, 2015Observed: 4.1 ft at 2:54PM May 20, 2015Observed: 4.08 ft at 3:00PM May 20, 2015Observed: 4.05 ft at 3:06PM May 20, 2015Observed: 4.04 ft at 3:12PM May 20, 2015Observed: 4.02 ft at 3:18PM May 20, 2015Observed: 4.02 ft at 3:24PM May 20, 2015Observed: 4.01 ft at 3:30PM May 20, 2015Observed: 4 ft at 3:36PM May 20, 2015Observed: 4 ft at 3:42PM May 20, 2015Observed: 3.97 ft at 3:48PM May 20, 2015Observed: 3.95 ft at 3:54PM May 20, 2015Observed: 4.07 ft at 4:00PM May 20, 2015Observed: 4.05 ft at 4:06PM May 20, 2015Observed: 4.04 ft at 4:12PM May 20, 2015Observed: 4.04 ft at 4:18PM May 20, 2015Observed: 4.08 ft at 4:24PM May 20, 2015Observed: 4.14 ft at 4:30PM May 20, 2015Observed: 4.19 ft at 4:36PM May 20, 2015Observed: 4.26 ft at 4:42PM May 20, 2015Observed: 4.37 ft at 4:54PM May 20, 2015Observed: 4.44 ft at 5:00PM May 20, 2015Observed: 4.52 ft at 5:06PM May 20, 2015Observed: 4.6 ft at 5:12PM May 20, 2015Observed: 4.69 ft at 5:18PM May 20, 2015Observed: 4.79 ft at 5:24PM May 20, 2015Observed: 4.89 ft at 5:30PM May 20, 2015Observed: 4.98 ft at 5:36PM May 20, 2015Observed: 5.08 ft at 5:42PM May 20, 2015Observed: 5.17 ft at 5:48PM May 20, 2015Observed: 5.28 ft at 5:54PM May 20, 2015Observed: 5.36 ft at 6:00PM May 20, 2015Observed: 5.45 ft at 6:06PM May 20, 2015Observed: 5.52 ft at 6:12PM May 20, 2015Observed: 5.59 ft at 6:18PM May 20, 2015Observed: 5.69 ft at 6:24PM May 20, 2015Observed: 5.79 ft at 6:30PM May 20, 2015Observed: 5.84 ft at 6:36PM May 20, 2015Observed: 5.87 ft at 6:42PM May 20, 2015Observed: 5.91 ft at 6:48PM May 20, 2015Observed: 5.95 ft at 6:54PM May 20, 2015Observed: 6.01 ft at 7:00PM May 20, 2015Observed: 6.06 ft at 7:06PM May 20, 2015Observed: 6.1 ft at 7:12PM May 20, 2015Observed: 6.13 ft at 7:18PM May 20, 2015Observed: 6.16 ft at 7:24PM May 20, 2015Observed: 6.16 ft at 7:30PM May 20, 2015Observed: 6.17 ft at 7:36PM May 20, 2015Observed: 6.16 ft at 7:42PM May 20, 2015Observed: 6.15 ft at 7:48PM May 20, 2015Observed: 6.15 ft at 7:54PM May 20, 2015Observed: 6.13 ft at 8:00PM May 20, 2015Observed: 6.12 ft at 8:06PM May 20, 2015Observed: 6.1 ft at 8:12PM May 20, 2015Observed: 6.07 ft at 8:18PM May 20, 2015Observed: 6.04 ft at 8:24PM May 20, 2015Observed: 6.01 ft at 8:30PM May 20, 2015Observed: 5.97 ft at 8:36PM May 20, 2015Observed: 5.94 ft at 8:42PM May 20, 2015Observed: 5.91 ft at 8:48PM May 20, 2015Observed: 5.89 ft at 8:54PM May 20, 2015Observed: 5.87 ft at 9:00PM May 20, 2015Observed: 5.84 ft at 9:06PM May 20, 2015Observed: 5.83 ft at 9:12PM May 20, 2015Observed: 5.82 ft at 9:18PM May 20, 2015Observed: 5.81 ft at 9:24PM May 20, 2015Observed: 5.79 ft at 9:30PM May 20, 2015Observed: 5.78 ft at 9:36PM May 20, 2015Observed: 5.76 ft at 9:42PM May 20, 2015Observed: 5.75 ft at 9:48PM May 20, 2015Observed: 5.74 ft at 9:54PM May 20, 2015Observed: 5.72 ft at 10:00PM May 20, 2015Observed: 5.71 ft at 10:06PM May 20, 2015Observed: 5.69 ft at 10:12PM May 20, 2015Observed: 5.66 ft at 10:18PM May 20, 2015Observed: 5.64 ft at 10:24PM May 20, 2015Observed: 5.61 ft at 10:30PM May 20, 2015Observed: 5.59 ft at 10:36PM May 20, 2015Observed: 5.57 ft at 10:42PM May 20, 2015Observed: 5.54 ft at 10:48PM May 20, 2015Observed: 5.52 ft at 10:54PM May 20, 2015Observed: 5.49 ft at 11:00PM May 20, 2015Observed: 5.45 ft at 11:06PM May 20, 2015Observed: 5.42 ft at 11:12PM May 20, 2015Observed: 5.38 ft at 11:18PM May 20, 2015Observed: 5.34 ft at 11:24PM May 20, 2015Observed: 5.31 ft at 11:30PM May 20, 2015Observed: 5.28 ft at 11:36PM May 20, 2015Observed: 5.24 ft at 11:42PM May 20, 2015Observed: 5.21 ft at 11:48PM May 20, 2015Observed: 5.17 ft at 11:54PM May 20, 2015Observed: 5.14 ft at 12:00AM May 21, 2015Observed: 5.11 ft at 12:06AM May 21, 2015Observed: 5.08 ft at 12:12AM May 21, 2015Observed: 5.05 ft at 12:18AM May 21, 2015Observed: 5.01 ft at 12:24AM May 21, 2015Observed: 4.98 ft at 12:30AM May 21, 2015Observed: 4.94 ft at 12:36AM May 21, 2015Observed: 4.91 ft at 12:42AM May 21, 2015Observed: 4.88 ft at 12:48AM May 21, 2015Observed: 4.85 ft at 12:54AM May 21, 2015Observed: 4.83 ft at 1:00AM May 21, 2015Observed: 4.8 ft at 1:06AM May 21, 2015Observed: 4.77 ft at 1:12AM May 21, 2015Observed: 4.75 ft at 1:18AM May 21, 2015Observed: 4.73 ft at 1:24AM May 21, 2015Observed: 4.7 ft at 1:30AM May 21, 2015Observed: 4.69 ft at 1:36AM May 21, 2015Observed: 4.66 ft at 1:42AM May 21, 2015Observed: 4.64 ft at 1:48AM May 21, 2015Observed: 4.61 ft at 1:54AM May 21, 2015Observed: 4.58 ft at 2:00AM May 21, 2015Observed: 4.58 ft at 2:06AM May 21, 2015Observed: 4.57 ft at 2:12AM May 21, 2015Observed: 4.55 ft at 2:18AM May 21, 2015Observed: 4.55 ft at 2:24AM May 21, 2015Observed: 4.52 ft at 2:30AM May 21, 2015Observed: 4.52 ft at 2:36AM May 21, 2015Observed: 4.51 ft at 2:42AM May 21, 2015Observed: 4.52 ft at 2:48AM May 21, 2015Observed: 4.52 ft at 2:54AM May 21, 2015Observed: 4.53 ft at 3:00AM May 21, 2015Observed: 4.55 ft at 3:06AM May 21, 2015Observed: 4.59 ft at 3:12AM May 21, 2015Observed: 4.62 ft at 3:18AM May 21, 2015Observed: 4.66 ft at 3:24AM May 21, 2015Observed: 4.69 ft at 3:30AM May 21, 2015Observed: 4.75 ft at 3:36AM May 21, 2015Observed: 4.82 ft at 3:42AM May 21, 2015Observed: 4.89 ft at 3:48AM May 21, 2015Observed: 4.96 ft at 3:54AM May 21, 2015Observed: 5.04 ft at 4:00AM May 21, 2015Observed: 5.13 ft at 4:06AM May 21, 2015Observed: 5.23 ft at 4:12AM May 21, 2015Observed: 5.31 ft at 4:18AM May 21, 2015Observed: 5.42 ft at 4:24AM May 21, 2015Observed: 5.52 ft at 4:30AM May 21, 2015Observed: 5.61 ft at 4:36AM May 21, 2015Observed: 5.71 ft at 4:42AM May 21, 2015Observed: 5.8 ft at 4:48AM May 21, 2015Observed: 5.9 ft at 4:54AM May 21, 2015Observed: 5.99 ft at 5:00AM May 21, 2015Observed: 6.08 ft at 5:06AM May 21, 2015Observed: 6.16 ft at 5:12AM May 21, 2015Observed: 6.25 ft at 5:18AM May 21, 2015Observed: 6.34 ft at 5:24AM May 21, 2015Observed: 6.4 ft at 5:30AM May 21, 2015Observed: 6.47 ft at 5:36AM May 21, 2015Observed: 6.55 ft at 5:42AM May 21, 2015Observed: 6.6 ft at 5:48AM May 21, 2015Observed: 6.66 ft at 5:54AM May 21, 2015Observed: 6.72 ft at 6:00AM May 21, 2015Observed: 6.77 ft at 6:06AM May 21, 2015Observed: 6.81 ft at 6:12AM May 21, 2015Observed: 6.84 ft at 6:18AM May 21, 2015Observed: 6.88 ft at 6:24AM May 21, 2015Observed: 6.91 ft at 6:30AM May 21, 2015Observed: 6.92 ft at 6:36AM May 21, 2015Observed: 6.94 ft at 6:42AM May 21, 2015Observed: 6.94 ft at 6:48AM May 21, 2015Observed: 6.96 ft at 6:54AM May 21, 2015Observed: 6.94 ft at 7:00AM May 21, 2015Observed: 6.94 ft at 7:06AM May 21, 2015Observed: 6.92 ft at 7:12AM May 21, 2015Observed: 6.91 ft at 7:18AM May 21, 2015Observed: 6.89 ft at 7:24AM May 21, 2015Observed: 6.86 ft at 7:30AM May 21, 2015Observed: 6.83 ft at 7:36AM May 21, 2015Observed: 6.8 ft at 7:42AM May 21, 2015Observed: 6.77 ft at 7:48AM May 21, 2015Observed: 6.74 ft at 7:54AM May 21, 2015Observed: 6.71 ft at 8:00AM May 21, 2015Observed: 6.67 ft at 8:06AM May 21, 2015Observed: 6.64 ft at 8:12AM May 21, 2015Observed: 6.61 ft at 8:18AM May 21, 2015Observed: 6.58 ft at 8:24AM May 21, 2015Observed: 6.56 ft at 8:30AM May 21, 2015Observed: 6.53 ft at 8:36AM May 21, 2015Observed: 6.5 ft at 8:42AM May 21, 2015Observed: 6.47 ft at 8:48AM May 21, 2015Observed: 6.44 ft at 8:54AM May 21, 2015Observed: 6.42 ft at 9:00AM May 21, 2015Observed: 6.39 ft at 9:06AM May 21, 2015Observed: 6.37 ft at 9:12AM May 21, 2015Observed: 6.34 ft at 9:18AM May 21, 2015Observed: 6.31 ft at 9:24AM May 21, 2015Observed: 6.28 ft at 9:30AM May 21, 2015Observed: 6.24 ft at 9:36AM May 21, 2015Observed: 6.22 ft at 9:42AM May 21, 2015Observed: 6.17 ft at 9:48AM May 21, 2015Observed: 6.14 ft at 9:54AM May 21, 2015Observed: 6.09 ft at 10:00AM May 21, 2015Observed: 6.06 ft at 10:06AM May 21, 2015Observed: 5.94 ft at 10:24AM May 21, 2015Observed: 5.9 ft at 10:30AM May 21, 2015Observed: 5.86 ft at 10:36AM May 21, 2015Observed: 5.81 ft at 10:42AM May 21, 2015Observed: 5.77 ft at 10:48AM May 21, 2015Observed: 5.73 ft at 10:54AM May 21, 2015Observed: 5.69 ft at 11:00AM May 21, 2015Observed: 5.64 ft at 11:06AM May 21, 2015Observed: 5.6 ft at 11:12AM May 21, 2015Observed: 5.56 ft at 11:18AM May 21, 2015Observed: 5.52 ft at 11:24AM May 21, 2015Observed: 5.48 ft at 11:30AM May 21, 2015Observed: 5.44 ft at 11:36AM May 21, 2015Observed: 5.39 ft at 11:42AM May 21, 2015Observed: 5.36 ft at 11:48AM May 21, 2015Observed: 5.33 ft at 11:54AM May 21, 2015Observed: 5.29 ft at 12:00PM May 21, 2015Observed: 5.26 ft at 12:06PM May 21, 2015Observed: 5.23 ft at 12:12PM May 21, 2015Observed: 5.2 ft at 12:18PM May 21, 2015Observed: 5.16 ft at 12:24PM May 21, 2015Observed: 5.13 ft at 12:30PM May 21, 2015Observed: 5.1 ft at 12:36PM May 21, 2015Observed: 5.06 ft at 12:42PM May 21, 2015Observed: 5.04 ft at 12:48PM May 21, 2015Observed: 5 ft at 12:54PM May 21, 2015Observed: 4.96 ft at 1:00PM May 21, 2015Observed: 4.93 ft at 1:06PM May 21, 2015Observed: 4.9 ft at 1:12PM May 21, 2015Observed: 4.87 ft at 1:18PM May 21, 2015Observed: 4.83 ft at 1:24PM May 21, 2015Observed: 4.8 ft at 1:30PM May 21, 2015Observed: 4.77 ft at 1:36PM May 21, 2015Observed: 4.75 ft at 1:42PM May 21, 2015Observed: 4.72 ft at 1:48PM May 21, 2015Observed: 4.68 ft at 1:54PM May 21, 2015Observed: 4.65 ft at 2:00PM May 21, 2015Observed: 4.62 ft at 2:06PM May 21, 2015Observed: 4.59 ft at 2:12PM May 21, 2015Observed: 4.55 ft at 2:18PM May 21, 2015Observed: 4.52 ft at 2:24PM May 21, 2015Observed: 4.48 ft at 2:30PM May 21, 2015Observed: 4.46 ft at 2:36PM May 21, 2015Observed: 4.44 ft at 2:42PM May 21, 2015Observed: 4.41 ft at 2:48PM May 21, 2015Observed: 4.37 ft at 2:54PM May 21, 2015Observed: 4.35 ft at 3:00PM May 21, 2015Observed: 4.32 ft at 3:06PM May 21, 2015Observed: 4.29 ft at 3:12PM May 21, 2015Observed: 4.26 ft at 3:18PM May 21, 2015Observed: 4.23 ft at 3:24PM May 21, 2015Observed: 4.23 ft at 3:30PM May 21, 2015Observed: 4.2 ft at 3:36PM May 21, 2015Observed: 4.18 ft at 3:42PM May 21, 2015Observed: 4.19 ft at 3:48PM May 21, 2015Observed: 4.17 ft at 3:54PM May 21, 2015Observed: 4.15 ft at 4:00PM May 21, 2015Observed: 4.13 ft at 4:06PM May 21, 2015Observed: 4.12 ft at 4:12PM May 21, 2015Observed: 4.13 ft at 4:18PM May 21, 2015Observed: 4.12 ft at 4:30PM May 21, 2015Observed: 4.13 ft at 4:36PM May 21, 2015Observed: 4.14 ft at 4:42PM May 21, 2015Observed: 4.17 ft at 4:48PM May 21, 2015Observed: 4.23 ft at 5:00PM May 21, 2015Observed: 4.37 ft at 5:12PM May 21, 2015Observed: 4.36 ft at 5:24PM May 21, 2015Observed: 4.51 ft at 5:36PM May 21, 2015Observed: 4.6 ft at 5:42PM May 21, 2015Observed: 4.69 ft at 5:48PM May 21, 2015Observed: 4.77 ft at 5:54PM May 21, 2015Observed: 4.84 ft at 6:00PM May 21, 2015Observed: 4.93 ft at 6:06PM May 21, 2015Observed: 4.99 ft at 6:12PM May 21, 2015Observed: 5.09 ft at 6:18PM May 21, 2015Observed: 5.17 ft at 6:24PM May 21, 2015Observed: 5.25 ft at 6:30PM May 21, 2015Observed: 5.35 ft at 6:36PM May 21, 2015Observed: 5.45 ft at 6:42PM May 21, 2015Observed: 5.54 ft at 6:48PM May 21, 2015Observed: 5.62 ft at 6:54PM May 21, 2015Observed: 5.7 ft at 7:00PM May 21, 2015Observed: 5.77 ft at 7:06PM May 21, 2015Observed: 5.84 ft at 7:12PM May 21, 2015Observed: 5.91 ft at 7:18PM May 21, 2015Observed: 5.97 ft at 7:24PM May 21, 2015Observed: 6.04 ft at 7:30PM May 21, 2015Observed: 6.07 ft at 7:36PM May 21, 2015Observed: 6.08 ft at 7:42PM May 21, 2015Observed: 6.09 ft at 7:48PM May 21, 2015Observed: 6.2 ft at 7:54PM May 21, 2015Observed: 6.23 ft at 8:00PM May 21, 2015Observed: 6.29 ft at 8:06PM May 21, 2015Observed: 6.3 ft at 8:12PM May 21, 2015Observed: 6.28 ft at 8:18PM May 21, 2015Observed: 6.28 ft at 8:24PM May 21, 2015Observed: 6.26 ft at 8:30PM May 21, 2015Observed: 6.24 ft at 8:36PM May 21, 2015Observed: 6.22 ft at 8:42PM May 21, 2015Observed: 6.2 ft at 8:48PM May 21, 2015Observed: 6.19 ft at 8:54PM May 21, 2015Observed: 6.17 ft at 9:00PM May 21, 2015Observed: 6.15 ft at 9:06PM May 21, 2015Observed: 6.12 ft at 9:12PM May 21, 2015Observed: 6.09 ft at 9:18PM May 21, 2015Observed: 6.07 ft at 9:24PM May 21, 2015Observed: 6.05 ft at 9:30PM May 21, 2015Observed: 6.02 ft at 9:36PM May 21, 2015Observed: 6 ft at 9:42PM May 21, 2015Observed: 5.98 ft at 9:48PM May 21, 2015Observed: 5.96 ft at 9:54PM May 21, 2015Observed: 5.95 ft at 10:00PM May 21, 2015Observed: 5.94 ft at 10:06PM May 21, 2015Observed: 5.92 ft at 10:12PM May 21, 2015Observed: 5.91 ft at 10:18PM May 21, 2015Observed: 5.89 ft at 10:24PM May 21, 2015Observed: 5.88 ft at 10:30PM May 21, 2015Observed: 5.87 ft at 10:36PM May 21, 2015Observed: 5.85 ft at 10:42PM May 21, 2015Observed: 5.84 ft at 10:48PM May 21, 2015Observed: 5.81 ft at 10:54PM May 21, 2015Observed: 5.79 ft at 11:00PM May 21, 2015Observed: 5.76 ft at 11:06PM May 21, 2015Observed: 5.74 ft at 11:12PM May 21, 2015Observed: 5.73 ft at 11:18PM May 21, 2015Observed: 5.71 ft at 11:24PM May 21, 2015Observed: 5.69 ft at 11:30PM May 21, 2015Observed: 5.66 ft at 11:36PM May 21, 2015Observed: 5.62 ft at 11:42PM May 21, 2015Observed: 5.59 ft at 11:48PM May 21, 2015Observed: 5.55 ft at 11:54PM May 21, 2015Observed: 5.53 ft at 12:00AM May 22, 2015Observed: 5.49 ft at 12:06AM May 22, 2015Observed: 5.45 ft at 12:12AM May 22, 2015Observed: 5.42 ft at 12:18AM May 22, 2015Observed: 5.38 ft at 12:24AM May 22, 2015Observed: 5.35 ft at 12:30AM May 22, 2015Observed: 5.32 ft at 12:36AM May 22, 2015Observed: 5.3 ft at 12:42AM May 22, 2015Observed: 5.26 ft at 12:48AM May 22, 2015Observed: 5.23 ft at 12:54AM May 22, 2015Observed: 5.19 ft at 1:00AM May 22, 2015Observed: 5.17 ft at 1:06AM May 22, 2015Observed: 5.15 ft at 1:12AM May 22, 2015Observed: 5.1 ft at 1:18AM May 22, 2015Observed: 5.12 ft at 1:24AM May 22, 2015Observed: 5.05 ft at 1:30AM May 22, 2015Observed: 4.97 ft at 1:36AM May 22, 2015Observed: 4.93 ft at 1:42AM May 22, 2015Observed: 4.93 ft at 1:48AM May 22, 2015Observed: 4.91 ft at 1:54AM May 22, 2015Observed: 4.9 ft at 2:00AM May 22, 2015Observed: 4.88 ft at 2:06AM May 22, 2015Observed: 4.84 ft at 2:12AM May 22, 2015Observed: 4.81 ft at 2:18AM May 22, 2015Observed: 4.79 ft at 2:24AM May 22, 2015Observed: 4.76 ft at 2:30AM May 22, 2015Observed: 4.75 ft at 2:36AM May 22, 2015Observed: 4.72 ft at 2:42AM May 22, 2015Observed: 4.71 ft at 2:48AM May 22, 2015Observed: 4.68 ft at 2:54AM May 22, 2015Observed: 4.68 ft at 3:00AM May 22, 2015Observed: 4.66 ft at 3:06AM May 22, 2015Observed: 4.64 ft at 3:12AM May 22, 2015Observed: 4.63 ft at 3:18AM May 22, 2015Observed: 4.63 ft at 3:24AM May 22, 2015Observed: 4.63 ft at 3:30AM May 22, 2015Observed: 4.63 ft at 3:36AM May 22, 2015Observed: 4.63 ft at 3:42AM May 22, 2015Observed: 4.64 ft at 3:48AM May 22, 2015Observed: 4.65 ft at 3:54AM May 22, 2015Observed: 4.66 ft at 4:00AM May 22, 2015Observed: 4.69 ft at 4:06AM May 22, 2015Observed: 4.72 ft at 4:12AM May 22, 2015Observed: 4.76 ft at 4:18AM May 22, 2015Observed: 4.8 ft at 4:24AM May 22, 2015Observed: 4.84 ft at 4:30AM May 22, 2015Observed: 4.9 ft at 4:36AM May 22, 2015Observed: 4.96 ft at 4:42AM May 22, 2015Observed: 5.02 ft at 4:48AM May 22, 2015Observed: 5.09 ft at 4:54AM May 22, 2015Observed: 5.16 ft at 5:00AM May 22, 2015Observed: 5.24 ft at 5:06AM May 22, 2015Observed: 5.3 ft at 5:12AM May 22, 2015Observed: 5.38 ft at 5:18AM May 22, 2015Forecast: 6.15 ft 6:00AM May 22, 2015Highest Forecast: 6.6 ft 7:00AM May 22, 2015Forecast: 6.57 ft 8:00AM May 22, 2015Forecast: 6.38 ft 9:00AM May 22, 2015Forecast: 6.15 ft 10:00AM May 22, 2015Forecast: 5.85 ft 11:00AM May 22, 2015Forecast: 5.44 ft 12:00PM May 22, 2015Forecast: 5.08 ft 1:00PM May 22, 2015Forecast: 4.68 ft 2:00PM May 22, 2015Forecast: 4.31 ft 3:00PM May 22, 2015Forecast: 4.04 ft 4:00PM May 22, 2015Forecast: 4.01 ft 5:00PM May 22, 2015Forecast: 4.23 ft 6:00PM May 22, 2015Forecast: 4.92 ft 7:00PM May 22, 2015Forecast: 5.65 ft 8:00PM May 22, 2015Forecast: 5.97 ft 9:00PM May 22, 2015Forecast: 6.01 ft 10:00PM May 22, 2015Forecast: 5.85 ft 11:00PM May 22, 2015Forecast: 5.69 ft 12:00AM May 23, 2015Forecast: 5.44 ft 1:00AM May 23, 2015Forecast: 5.16 ft 2:00AM May 23, 2015Forecast: 4.88 ft 3:00AM May 23, 2015Forecast: 4.68 ft 4:00AM May 23, 2015Forecast: 4.72 ft 5:00AM May 23, 2015Forecast: 5.08 ft 6:00AM May 23, 2015Forecast: 5.76 ft 7:00AM May 23, 2015Forecast: 6.18 ft 8:00AM May 23, 2015Forecast: 6.15 ft 9:00AM May 23, 2015Forecast: 5.93 ft 10:00AM May 23, 2015Forecast: 5.69 ft 11:00AM May 23, 2015Forecast: 5.36 ft 12:00PM May 23, 2015Forecast: 5 ft 1:00PM May 23, 2015Forecast: 4.59 ft 2:00PM May 23, 2015Forecast: 4.23 ft 3:00PM May 23, 2015Forecast: 3.94 ft 4:00PM May 23, 2015Forecast: 3.72 ft 5:00PM May 23, 2015Forecast: 3.69 ft 6:00PM May 23, 2015Forecast: 3.97 ft 7:00PM May 23, 2015Forecast: 4.64 ft 8:00PM May 23, 2015Forecast: 5.32 ft 9:00PM May 23, 2015Forecast: 5.65 ft 10:00PM May 23, 2015Forecast: 5.6 ft 11:00PM May 23, 2015Forecast: 5.49 ft 12:00AM May 24, 2015Forecast: 5.28 ft 1:00AM May 24, 2015Forecast: 5 ft 2:00AM May 24, 2015Forecast: 4.72 ft 3:00AM May 24, 2015Forecast: 4.48 ft 4:00AM May 24, 2015Forecast: 4.39 ft 5:00AM May 24, 2015Forecast: 4.51 ft 6:00AM May 24, 2015Forecast: 4.96 ft 7:00AM May 24, 2015Forecast: 5.4 ft 8:00AM May 24, 2015Forecast: 5.65 ft 9:00AM May 24, 2015Forecast: 5.6 ft 10:00AM May 24, 2015Forecast: 5.44 ft 11:00AM May 24, 2015Forecast: 5.24 ft 12:00PM May 24, 2015Forecast: 4.96 ft 1:00PM May 24, 2015Forecast: 4.64 ft 2:00PM May 24, 2015Forecast: 4.31 ft 3:00PM May 24, 2015Forecast: 3.97 ft 4:00PM May 24, 2015Forecast: 3.72 ft 5:00PM May 24, 2015Forecast: 3.58 ft 6:00PM May 24, 2015Forecast: 3.62 ft 7:00PM May 24, 2015Forecast: 3.94 ft 8:00PM May 24, 2015Forecast: 4.55 ft 9:00PM May 24, 2015Forecast: 5.2 ft 10:00PM May 24, 2015Forecast: 5.49 ft 11:00PM May 24, 2015Forecast: 5.49 ft 12:00AM May 25, 2015Forecast: 5.32 ft 1:00AM May 25, 2015Forecast: 5.12 ft 2:00AM May 25, 2015Forecast: 4.88 ft 3:00AM May 25, 2015Forecast: 4.59 ft 4:00AM May 25, 2015Forecast: 4.39 ft 5:00AM May 25, 2015Forecast: 4.27 ft 6:00AM May 25, 2015Forecast: 4.35 ft 7:00AM May 25, 2015Forecast: 4.64 ft 8:00AM May 25, 2015Forecast: 5 ft 9:00AM May 25, 2015Forecast: 5.2 ft 10:00AM May 25, 2015Forecast: 5.2 ft 11:00AM May 25, 2015Forecast: 5.08 ft 12:00PM May 25, 2015Forecast: 4.88 ft 1:00PM May 25, 2015Forecast: 4.68 ft 2:00PM May 25, 2015Forecast: 4.39 ft 3:00PM May 25, 2015Forecast: 4.11 ft 4:00PM May 25, 2015Forecast: 3.87 ft 5:00PM May 25, 2015Forecast: 3.65 ft 6:00PM May 25, 2015Forecast: 3.55 ft 7:00PM May 25, 2015Forecast: 3.62 ft 8:00PM May 25, 2015Forecast: 3.97 ft 9:00PM May 25, 2015Forecast: 4.64 ft 10:00PM May 25, 2015Forecast: 5.24 ft 11:00PM May 25, 2015Forecast: 5.53 ft 12:00AM May 26, 2015Forecast: 5.53 ft 1:00AM May 26, 2015Forecast: 5.4 ft 2:00AM May 26, 2015Forecast: 5.24 ft 3:00AM May 26, 2015Forecast: 5 ft 4:00AM May 26, 2015Forecast: 4.76 ft 5:00AM May 26, 2015Forecast: 4.47 ft 6:00AM May 26, 2015Forecast: 4.26 ft 7:00AM May 26, 2015Forecast: 4.18 ft 8:00AM May 26, 2015Forecast: 4.3 ft 9:00AM May 26, 2015Forecast: 4.67 ft 10:00AM May 26, 2015Forecast: 4.95 ft 11:00AM May 26, 2015Forecast: 4.95 ft 12:00PM May 26, 2015Forecast: 4.87 ft 1:00PM May 26, 2015Forecast: 4.67 ft 2:00PM May 26, 2015Forecast: 4.47 ft 3:00PM May 26, 2015Forecast: 4.26 ft 4:00PM May 26, 2015Forecast: 4 ft 5:00PM May 26, 2015Forecast: 3.79 ft 6:00PM May 26, 2015Forecast: 3.65 ft 7:00PM May 26, 2015Forecast: 3.61 ft 8:00PM May 26, 2015Forecast: 3.82 ft 9:00PM May 26, 2015Forecast: 4.47 ft 10:00PM May 26, 2015Forecast: 5.24 ft 11:00PM May 26, 2015Forecast: 5.69 ft 12:00AM May 27, 2015Forecast: 5.72 ft 1:00AM May 27, 2015Forecast: 5.6 ft 2:00AM May 27, 2015Forecast: 5.44 ft 3:00AM May 27, 2015Forecast: 5.19 ft 4:00AM May 27, 2015Forecast: 4.91 ft 5:00AM May 27, 2015SHNO3(plotting HGIRG) Graph Created (5:48AM May 22, 2015)ObservedForecast (issued 2:11PM May 21)Latest observed value: 5.38 ft at 5:18 AM PDT 22-May-2015. Flood Stage is 17 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Columbia River at St. Helens are issued routinely year-round.
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Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 0
Flood Stage: 17
Action Stage: 16
Low Stage (in feet): 0

Historic Crests
(1) 27.10 ft on 06/14/1948
(2) 24.00 ft on 12/25/1964
(3) 23.20 ft on 06/05/1956
(4) 23.00 ft on 02/10/1996
(5) 21.60 ft on 06/27/1950
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 23.00 ft on 02/10/1996
(2) 19.78 ft on 01/03/1996
(3) 17.80 ft on 06/23/1967
(4) 19.60 ft on 01/31/1965
(5) 24.00 ft on 12/25/1964
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
23 Above 23 ft, Expect major flooding, especially near Kalama Washington. This river level historically nears the tops of several levees along the Columbia and Lewis Rivers.
21 Above 21 ft, Expect minor flooding near Kalama Washington, along with widespread flooding of lowland agricultural areas.
19 Above 19 ft, Expect widespread lowland flooding. Levee watches have historically been in effect at this and higher stages for Bachelor Island and locations near Lewis River confluence.
17 Above 17 ft, .Expect flooding of low lying farmland to begin. Levee watches along the Lewis River historically have been in effect at this level.
About This Location Collapse

Latitude: 45.863611° N, Longitude: 122.796240° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 17 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0.89 ft 17.89 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Additional Information Collapse
Archived/Historical Data at USACE DataQuery
10-day Forecast/Trend, Northwest River Forecast Center
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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Page last modified: 12-Feb-2015 9:31 PM
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