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Hydrograph River at a Glance Download
Long Island Sound near New London Harbor Tide Height (ft)Observed: 3.11 ft at 11:06PM Jul 15, 2019Observed: 3.07 ft at 11:12PM Jul 15, 2019Observed: 3 ft at 11:18PM Jul 15, 2019Observed: 2.94 ft at 11:24PM Jul 15, 2019Observed: 2.89 ft at 11:30PM Jul 15, 2019Observed: 2.84 ft at 11:36PM Jul 15, 2019Observed: 2.79 ft at 11:42PM Jul 15, 2019Observed: 2.72 ft at 11:48PM Jul 15, 2019Observed: 2.67 ft at 11:54PM Jul 15, 2019Observed: 2.6 ft at 12:00AM Jul 16, 2019Observed: 2.54 ft at 12:06AM Jul 16, 2019Observed: 2.45 ft at 12:12AM Jul 16, 2019Observed: 2.4 ft at 12:18AM Jul 16, 2019Observed: 2.34 ft at 12:24AM Jul 16, 2019Observed: 2.29 ft at 12:30AM Jul 16, 2019Observed: 2.24 ft at 12:36AM Jul 16, 2019Observed: 2.19 ft at 12:42AM Jul 16, 2019Observed: 2.15 ft at 12:48AM Jul 16, 2019Observed: 2.09 ft at 12:54AM Jul 16, 2019Observed: 2.04 ft at 1:00AM Jul 16, 2019Observed: 1.98 ft at 1:06AM Jul 16, 2019Observed: 1.94 ft at 1:12AM Jul 16, 2019Observed: 1.91 ft at 1:18AM Jul 16, 2019Observed: 1.87 ft at 1:24AM Jul 16, 2019Observed: 1.8 ft at 1:30AM Jul 16, 2019Observed: 1.76 ft at 1:36AM Jul 16, 2019Observed: 1.69 ft at 1:42AM Jul 16, 2019Observed: 1.63 ft at 1:48AM Jul 16, 2019Observed: 1.56 ft at 1:54AM Jul 16, 2019Observed: 1.5 ft at 2:00AM Jul 16, 2019Observed: 1.42 ft at 2:06AM Jul 16, 2019Observed: 1.33 ft at 2:12AM Jul 16, 2019Observed: 1.25 ft at 2:18AM Jul 16, 2019Observed: 1.17 ft at 2:24AM Jul 16, 2019Observed: 1.1 ft at 2:30AM Jul 16, 2019Observed: 1.05 ft at 2:36AM Jul 16, 2019Observed: 0.98 ft at 2:42AM Jul 16, 2019Observed: 0.89 ft at 2:48AM Jul 16, 2019Observed: 0.84 ft at 2:54AM Jul 16, 2019Observed: 0.79 ft at 3:00AM Jul 16, 2019Observed: 0.72 ft at 3:06AM Jul 16, 2019Observed: 0.67 ft at 3:12AM Jul 16, 2019Observed: 0.6 ft at 3:18AM Jul 16, 2019Observed: 0.54 ft at 3:24AM Jul 16, 2019Observed: 0.5 ft at 3:30AM Jul 16, 2019Observed: 0.45 ft at 3:36AM Jul 16, 2019Observed: 0.4 ft at 3:42AM Jul 16, 2019Observed: 0.36 ft at 3:48AM Jul 16, 2019Observed: 0.33 ft at 3:54AM Jul 16, 2019Observed: 0.32 ft at 4:00AM Jul 16, 2019Observed: 0.31 ft at 4:06AM Jul 16, 2019Observed: 0.3 ft at 4:12AM Jul 16, 2019Observed: 0.31 ft at 4:24AM Jul 16, 2019Observed: 0.31 ft at 4:30AM Jul 16, 2019Observed: 0.32 ft at 4:36AM Jul 16, 2019Observed: 0.35 ft at 4:42AM Jul 16, 2019Observed: 0.36 ft at 4:48AM Jul 16, 2019Observed: 0.39 ft at 4:54AM Jul 16, 2019Observed: 0.47 ft at 5:06AM Jul 16, 2019Observed: 0.5 ft at 5:12AM Jul 16, 2019Observed: 0.54 ft at 5:18AM Jul 16, 2019Observed: 0.6 ft at 5:24AM Jul 16, 2019Observed: 0.65 ft at 5:30AM Jul 16, 2019Observed: 0.71 ft at 5:36AM Jul 16, 2019Observed: 0.78 ft at 5:42AM Jul 16, 2019Observed: 0.85 ft at 5:48AM Jul 16, 2019Observed: 0.9 ft at 5:54AM Jul 16, 2019Observed: 0.99 ft at 6:00AM Jul 16, 2019Observed: 1.07 ft at 6:06AM Jul 16, 2019Observed: 1.15 ft at 6:12AM Jul 16, 2019Observed: 1.22 ft at 6:18AM Jul 16, 2019Observed: 1.28 ft at 6:24AM Jul 16, 2019Observed: 1.36 ft at 6:30AM Jul 16, 2019Observed: 1.43 ft at 6:36AM Jul 16, 2019Observed: 1.52 ft at 6:42AM Jul 16, 2019Observed: 1.57 ft at 6:48AM Jul 16, 2019Observed: 1.64 ft at 6:54AM Jul 16, 2019Observed: 1.72 ft at 7:00AM Jul 16, 2019Observed: 1.79 ft at 7:06AM Jul 16, 2019Observed: 1.86 ft at 7:12AM Jul 16, 2019Observed: 1.92 ft at 7:18AM Jul 16, 2019Observed: 1.98 ft at 7:24AM Jul 16, 2019Observed: 2.03 ft at 7:30AM Jul 16, 2019Observed: 2.09 ft at 7:36AM Jul 16, 2019Observed: 2.12 ft at 7:42AM Jul 16, 2019Observed: 2.17 ft at 7:48AM Jul 16, 2019Observed: 2.22 ft at 7:54AM Jul 16, 2019Observed: 2.27 ft at 8:00AM Jul 16, 2019Observed: 2.34 ft at 8:06AM Jul 16, 2019Observed: 2.39 ft at 8:12AM Jul 16, 2019Observed: 2.42 ft at 8:18AM Jul 16, 2019Observed: 2.47 ft at 8:24AM Jul 16, 2019Observed: 2.51 ft at 8:30AM Jul 16, 2019Observed: 2.55 ft at 8:36AM Jul 16, 2019Observed: 2.58 ft at 8:42AM Jul 16, 2019Observed: 2.61 ft at 8:48AM Jul 16, 2019Observed: 2.64 ft at 8:54AM Jul 16, 2019Observed: 2.68 ft at 9:00AM Jul 16, 2019Observed: 2.72 ft at 9:06AM Jul 16, 2019Observed: 2.74 ft at 9:12AM Jul 16, 2019Observed: 2.77 ft at 9:18AM Jul 16, 2019Observed: 2.81 ft at 9:24AM Jul 16, 2019Observed: 2.82 ft at 9:30AM Jul 16, 2019Observed: 2.83 ft at 9:36AM Jul 16, 2019Observed: 2.86 ft at 9:42AM Jul 16, 2019Observed: 2.91 ft at 9:54AM Jul 16, 2019Observed: 2.92 ft at 10:00AM Jul 16, 2019Observed: 2.94 ft at 10:06AM Jul 16, 2019Observed: 2.95 ft at 10:12AM Jul 16, 2019Observed: 2.92 ft at 10:18AM Jul 16, 2019Observed: 2.88 ft at 10:24AM Jul 16, 2019Observed: 2.86 ft at 10:30AM Jul 16, 2019Observed: 2.84 ft at 10:36AM Jul 16, 2019Observed: 2.83 ft at 10:42AM Jul 16, 2019Observed: 2.82 ft at 10:48AM Jul 16, 2019Observed: 2.81 ft at 10:54AM Jul 16, 2019Observed: 2.79 ft at 11:00AM Jul 16, 2019Observed: 2.77 ft at 11:06AM Jul 16, 2019Observed: 2.74 ft at 11:12AM Jul 16, 2019Observed: 2.69 ft at 11:18AM Jul 16, 2019Observed: 2.66 ft at 11:24AM Jul 16, 2019Observed: 2.61 ft at 11:30AM Jul 16, 2019Observed: 2.59 ft at 11:36AM Jul 16, 2019Observed: 2.54 ft at 11:42AM Jul 16, 2019Observed: 2.49 ft at 11:48AM Jul 16, 2019Observed: 2.43 ft at 11:54AM Jul 16, 2019Observed: 2.39 ft at 12:00PM Jul 16, 2019Observed: 2.35 ft at 12:06PM Jul 16, 2019Observed: 2.31 ft at 12:12PM Jul 16, 2019Observed: 2.26 ft at 12:18PM Jul 16, 2019Observed: 2.22 ft at 12:24PM Jul 16, 2019Observed: 2.19 ft at 12:30PM Jul 16, 2019Observed: 2.13 ft at 12:42PM Jul 16, 2019Observed: 2.08 ft at 12:48PM Jul 16, 2019Observed: 2.02 ft at 12:54PM Jul 16, 2019Observed: 1.98 ft at 1:00PM Jul 16, 2019Observed: 1.96 ft at 1:06PM Jul 16, 2019Observed: 1.91 ft at 1:12PM Jul 16, 2019Observed: 1.85 ft at 1:18PM Jul 16, 2019Observed: 1.81 ft at 1:24PM Jul 16, 2019Observed: 1.76 ft at 1:30PM Jul 16, 2019Observed: 1.7 ft at 1:36PM Jul 16, 2019Observed: 1.66 ft at 1:42PM Jul 16, 2019Observed: 1.64 ft at 1:48PM Jul 16, 2019Observed: 1.59 ft at 1:54PM Jul 16, 2019Observed: 1.56 ft at 2:00PM Jul 16, 2019Observed: 1.53 ft at 2:06PM Jul 16, 2019Observed: 1.49 ft at 2:12PM Jul 16, 2019Observed: 1.43 ft at 2:24PM Jul 16, 2019Observed: 1.39 ft at 2:30PM Jul 16, 2019Observed: 1.35 ft at 2:36PM Jul 16, 2019Observed: 1.29 ft at 2:42PM Jul 16, 2019Observed: 1.23 ft at 2:48PM Jul 16, 2019Observed: 1.16 ft at 2:54PM Jul 16, 2019Observed: 1.11 ft at 3:00PM Jul 16, 2019Observed: 1.07 ft at 3:06PM Jul 16, 2019Observed: 1.06 ft at 3:12PM Jul 16, 2019Observed: 1.03 ft at 3:18PM Jul 16, 2019Observed: 1.01 ft at 3:24PM Jul 16, 2019Observed: 0.98 ft at 3:30PM Jul 16, 2019Observed: 0.98 ft at 3:36PM Jul 16, 2019Observed: 0.97 ft at 3:42PM Jul 16, 2019Observed: 0.97 ft at 3:54PM Jul 16, 2019Observed: 0.96 ft at 4:00PM Jul 16, 2019Observed: 0.93 ft at 4:06PM Jul 16, 2019Observed: 0.92 ft at 4:12PM Jul 16, 2019Observed: 0.92 ft at 4:18PM Jul 16, 2019Observed: 0.93 ft at 4:24PM Jul 16, 2019Observed: 0.93 ft at 4:30PM Jul 16, 2019Observed: 0.91 ft at 4:36PM Jul 16, 2019Observed: 0.89 ft at 4:42PM Jul 16, 2019Observed: 0.89 ft at 4:48PM Jul 16, 2019Observed: 0.89 ft at 4:54PM Jul 16, 2019Observed: 0.91 ft at 5:00PM Jul 16, 2019Observed: 0.94 ft at 5:06PM Jul 16, 2019Observed: 0.97 ft at 5:12PM Jul 16, 2019Observed: 1.02 ft at 5:18PM Jul 16, 2019Observed: 1.06 ft at 5:24PM Jul 16, 2019Observed: 1.11 ft at 5:30PM Jul 16, 2019Observed: 1.16 ft at 5:36PM Jul 16, 2019Observed: 1.21 ft at 5:42PM Jul 16, 2019Observed: 1.24 ft at 5:48PM Jul 16, 2019Observed: 1.31 ft at 5:54PM Jul 16, 2019Observed: 1.37 ft at 6:00PM Jul 16, 2019Observed: 1.43 ft at 6:06PM Jul 16, 2019Observed: 1.51 ft at 6:12PM Jul 16, 2019Observed: 1.56 ft at 6:18PM Jul 16, 2019Observed: 1.62 ft at 6:24PM Jul 16, 2019Observed: 1.68 ft at 6:30PM Jul 16, 2019Observed: 1.75 ft at 6:36PM Jul 16, 2019Observed: 1.82 ft at 6:42PM Jul 16, 2019Observed: 1.9 ft at 6:48PM Jul 16, 2019Observed: 1.99 ft at 6:54PM Jul 16, 2019Observed: 2.07 ft at 7:00PM Jul 16, 2019Observed: 2.14 ft at 7:06PM Jul 16, 2019Observed: 2.2 ft at 7:12PM Jul 16, 2019Observed: 2.29 ft at 7:18PM Jul 16, 2019Observed: 2.36 ft at 7:24PM Jul 16, 2019Observed: 2.44 ft at 7:30PM Jul 16, 2019Observed: 2.5 ft at 7:36PM Jul 16, 2019Observed: 2.57 ft at 7:42PM Jul 16, 2019Observed: 2.77 ft at 8:00PM Jul 16, 2019Observed: 2.83 ft at 8:06PM Jul 16, 2019Observed: 2.9 ft at 8:12PM Jul 16, 2019Observed: 2.96 ft at 8:18PM Jul 16, 2019Observed: 3.02 ft at 8:24PM Jul 16, 2019Observed: 3.06 ft at 8:30PM Jul 16, 2019Observed: 3.1 ft at 8:36PM Jul 16, 2019Observed: 3.17 ft at 8:42PM Jul 16, 2019Observed: 3.22 ft at 8:48PM Jul 16, 2019Observed: 3.25 ft at 8:54PM Jul 16, 2019Observed: 3.29 ft at 9:00PM Jul 16, 2019Observed: 3.33 ft at 9:06PM Jul 16, 2019Observed: 3.36 ft at 9:12PM Jul 16, 2019Observed: 3.41 ft at 9:24PM Jul 16, 2019Observed: 3.46 ft at 9:30PM Jul 16, 2019Observed: 3.48 ft at 9:36PM Jul 16, 2019Observed: 3.51 ft at 9:42PM Jul 16, 2019Observed: 3.53 ft at 9:48PM Jul 16, 2019Observed: 3.53 ft at 9:54PM Jul 16, 2019Observed: 3.54 ft at 10:00PM Jul 16, 2019Observed: 3.54 ft at 10:06PM Jul 16, 2019Highest Observation: 3.56 ft at 10:12PM Jul 16, 2019Observed: 3.55 ft at 10:24PM Jul 16, 2019Observed: 3.54 ft at 10:30PM Jul 16, 2019Observed: 3.54 ft at 10:36PM Jul 16, 2019Observed: 3.52 ft at 10:42PM Jul 16, 2019Observed: 3.51 ft at 10:48PM Jul 16, 2019Observed: 3.51 ft at 10:54PM Jul 16, 2019Observed: 3.48 ft at 11:00PM Jul 16, 2019Observed: 3.45 ft at 11:06PM Jul 16, 2019Observed: 3.44 ft at 11:12PM Jul 16, 2019Observed: 3.4 ft at 11:18PM Jul 16, 2019Observed: 3.36 ft at 11:24PM Jul 16, 2019Observed: 3.32 ft at 11:30PM Jul 16, 2019Observed: 3.26 ft at 11:36PM Jul 16, 2019Observed: 3.23 ft at 11:42PM Jul 16, 2019Observed: 3.17 ft at 11:48PM Jul 16, 2019Observed: 3.1 ft at 11:54PM Jul 16, 2019Observed: 3.06 ft at 12:00AM Jul 17, 2019Observed: 3 ft at 12:06AM Jul 17, 2019Observed: 2.94 ft at 12:12AM Jul 17, 2019Observed: 2.8 ft at 12:24AM Jul 17, 2019Observed: 2.74 ft at 12:30AM Jul 17, 2019Observed: 2.68 ft at 12:36AM Jul 17, 2019Observed: 2.62 ft at 12:42AM Jul 17, 2019Observed: 2.55 ft at 12:48AM Jul 17, 2019Observed: 2.5 ft at 12:54AM Jul 17, 2019Observed: 2.43 ft at 1:00AM Jul 17, 2019Observed: 2.39 ft at 1:06AM Jul 17, 2019Observed: 2.35 ft at 1:12AM Jul 17, 2019Observed: 2.23 ft at 1:24AM Jul 17, 2019Observed: 2.18 ft at 1:30AM Jul 17, 2019Observed: 2.13 ft at 1:36AM Jul 17, 2019Observed: 2.06 ft at 1:42AM Jul 17, 2019Observed: 2.02 ft at 1:48AM Jul 17, 2019Observed: 1.96 ft at 1:54AM Jul 17, 2019Observed: 1.92 ft at 2:00AM Jul 17, 2019Observed: 1.88 ft at 2:06AM Jul 17, 2019Observed: 1.83 ft at 2:12AM Jul 17, 2019Observed: 1.74 ft at 2:24AM Jul 17, 2019Observed: 1.67 ft at 2:30AM Jul 17, 2019Observed: 1.62 ft at 2:36AM Jul 17, 2019Observed: 1.56 ft at 2:42AM Jul 17, 2019Observed: 1.42 ft at 2:54AM Jul 17, 2019Observed: 1.35 ft at 3:00AM Jul 17, 2019Observed: 1.25 ft at 3:06AM Jul 17, 2019Observed: 1.18 ft at 3:12AM Jul 17, 2019Observed: 1.13 ft at 3:18AM Jul 17, 2019Observed: 1.07 ft at 3:24AM Jul 17, 2019Observed: 1.02 ft at 3:30AM Jul 17, 2019Observed: 0.97 ft at 3:36AM Jul 17, 2019Observed: 0.91 ft at 3:42AM Jul 17, 2019Observed: 0.81 ft at 3:54AM Jul 17, 2019Observed: 0.75 ft at 4:00AM Jul 17, 2019Observed: 0.71 ft at 4:06AM Jul 17, 2019Observed: 0.66 ft at 4:12AM Jul 17, 2019Observed: 0.61 ft at 4:18AM Jul 17, 2019Observed: 0.56 ft at 4:24AM Jul 17, 2019Observed: 0.51 ft at 4:30AM Jul 17, 2019Observed: 0.47 ft at 4:36AM Jul 17, 2019Observed: 0.46 ft at 4:42AM Jul 17, 2019Observed: 0.42 ft at 4:48AM Jul 17, 2019Observed: 0.41 ft at 4:54AM Jul 17, 2019Observed: 0.4 ft at 5:00AM Jul 17, 2019Observed: 0.41 ft at 5:06AM Jul 17, 2019Observed: 0.41 ft at 5:12AM Jul 17, 2019Observed: 0.43 ft at 5:18AM Jul 17, 2019Observed: 0.44 ft at 5:24AM Jul 17, 2019Observed: 0.46 ft at 5:30AM Jul 17, 2019Observed: 0.49 ft at 5:36AM Jul 17, 2019Observed: 0.52 ft at 5:42AM Jul 17, 2019Observed: 0.56 ft at 5:48AM Jul 17, 2019Observed: 0.62 ft at 5:54AM Jul 17, 2019Observed: 0.67 ft at 6:00AM Jul 17, 2019Observed: 0.74 ft at 6:06AM Jul 17, 2019Observed: 0.8 ft at 6:12AM Jul 17, 2019Observed: 0.86 ft at 6:18AM Jul 17, 2019Observed: 0.93 ft at 6:24AM Jul 17, 2019Observed: 0.97 ft at 6:30AM Jul 17, 2019Observed: 1.04 ft at 6:36AM Jul 17, 2019Observed: 1.1 ft at 6:42AM Jul 17, 2019Observed: 1.18 ft at 6:48AM Jul 17, 2019Observed: 1.25 ft at 6:54AM Jul 17, 2019Observed: 1.33 ft at 7:00AM Jul 17, 2019Observed: 1.39 ft at 7:06AM Jul 17, 2019Observed: 1.47 ft at 7:12AM Jul 17, 2019Observed: 1.56 ft at 7:18AM Jul 17, 2019Observed: 1.63 ft at 7:24AM Jul 17, 2019Observed: 1.7 ft at 7:30AM Jul 17, 2019Observed: 1.74 ft at 7:36AM Jul 17, 2019Observed: 1.81 ft at 7:42AM Jul 17, 2019Observed: 1.88 ft at 7:48AM Jul 17, 2019Observed: 1.94 ft at 7:54AM Jul 17, 2019Observed: 2 ft at 8:00AM Jul 17, 2019Observed: 2.06 ft at 8:06AM Jul 17, 2019Observed: 2.13 ft at 8:12AM Jul 17, 2019Observed: 2.17 ft at 8:18AM Jul 17, 2019Observed: 2.2 ft at 8:24AM Jul 17, 2019Observed: 2.25 ft at 8:30AM Jul 17, 2019Observed: 2.3 ft at 8:36AM Jul 17, 2019Observed: 2.33 ft at 8:42AM Jul 17, 2019Observed: 2.42 ft at 8:54AM Jul 17, 2019Observed: 2.45 ft at 9:00AM Jul 17, 2019Observed: 2.53 ft at 9:06AM Jul 17, 2019Observed: 2.57 ft at 9:12AM Jul 17, 2019Observed: 2.6 ft at 9:18AM Jul 17, 2019Observed: 2.63 ft at 9:24AM Jul 17, 2019Observed: 2.66 ft at 9:30AM Jul 17, 2019Observed: 2.7 ft at 9:36AM Jul 17, 2019Observed: 2.74 ft at 9:42AM Jul 17, 2019Observed: 2.78 ft at 9:48AM Jul 17, 2019Observed: 2.8 ft at 9:54AM Jul 17, 2019Observed: 2.84 ft at 10:00AM Jul 17, 2019Observed: 2.87 ft at 10:06AM Jul 17, 2019Observed: 2.91 ft at 10:12AM Jul 17, 2019Observed: 2.93 ft at 10:18AM Jul 17, 2019Observed: 2.94 ft at 10:24AM Jul 17, 2019Observed: 2.96 ft at 10:30AM Jul 17, 2019Observed: 2.99 ft at 10:36AM Jul 17, 2019Observed: 3 ft at 10:42AM Jul 17, 2019Observed: 3.02 ft at 10:48AM Jul 17, 2019Observed: 3.02 ft at 10:54AM Jul 17, 2019Observed: 3.02 ft at 11:00AM Jul 17, 2019Observed: 3.01 ft at 11:06AM Jul 17, 2019Observed: 3.02 ft at 11:12AM Jul 17, 2019Observed: 2.98 ft at 11:18AM Jul 17, 2019Observed: 2.98 ft at 11:24AM Jul 17, 2019Observed: 2.98 ft at 11:30AM Jul 17, 2019Observed: 2.95 ft at 11:36AM Jul 17, 2019Observed: 2.93 ft at 11:42AM Jul 17, 2019Observed: 2.9 ft at 11:48AM Jul 17, 2019Observed: 2.88 ft at 11:54AM Jul 17, 2019Observed: 2.86 ft at 12:00PM Jul 17, 2019Observed: 2.82 ft at 12:06PM Jul 17, 2019Observed: 2.77 ft at 12:12PM Jul 17, 2019Observed: 2.73 ft at 12:18PM Jul 17, 2019Observed: 2.67 ft at 12:24PM Jul 17, 2019Observed: 2.63 ft at 12:30PM Jul 17, 2019Observed: 2.59 ft at 12:36PM Jul 17, 2019Observed: 2.53 ft at 12:42PM Jul 17, 2019Observed: 2.48 ft at 12:48PM Jul 17, 2019Observed: 2.44 ft at 12:54PM Jul 17, 2019Observed: 2.39 ft at 1:00PM Jul 17, 2019Observed: 2.33 ft at 1:06PM Jul 17, 2019Observed: 2.28 ft at 1:12PM Jul 17, 2019Observed: 2.24 ft at 1:18PM Jul 17, 2019Observed: 2.19 ft at 1:24PM Jul 17, 2019Observed: 2.16 ft at 1:30PM Jul 17, 2019Observed: 2.11 ft at 1:36PM Jul 17, 2019Observed: 2.09 ft at 1:42PM Jul 17, 2019Observed: 2.02 ft at 1:54PM Jul 17, 2019Observed: 1.96 ft at 2:00PM Jul 17, 2019Observed: 1.91 ft at 2:06PM Jul 17, 2019Observed: 1.86 ft at 2:12PM Jul 17, 2019Observed: 1.77 ft at 2:24PM Jul 17, 2019Observed: 1.73 ft at 2:30PM Jul 17, 2019Observed: 1.69 ft at 2:36PM Jul 17, 2019Observed: 1.67 ft at 2:42PM Jul 17, 2019Observed: 1.64 ft at 2:48PM Jul 17, 2019Observed: 1.61 ft at 2:54PM Jul 17, 2019Observed: 1.54 ft at 3:00PM Jul 17, 2019Observed: 1.47 ft at 3:06PM Jul 17, 2019Observed: 1.43 ft at 3:12PM Jul 17, 2019Observed: 1.4 ft at 3:18PM Jul 17, 2019Observed: 1.36 ft at 3:24PM Jul 17, 2019Observed: 1.3 ft at 3:30PM Jul 17, 2019Observed: 1.26 ft at 3:36PM Jul 17, 2019Observed: 1.22 ft at 3:42PM Jul 17, 2019Observed: 1.2 ft at 3:48PM Jul 17, 2019Observed: 1.18 ft at 3:54PM Jul 17, 2019Observed: 1.16 ft at 4:00PM Jul 17, 2019Observed: 1.15 ft at 4:06PM Jul 17, 2019Observed: 1.13 ft at 4:12PM Jul 17, 2019Observed: 1.11 ft at 4:18PM Jul 17, 2019Observed: 1.09 ft at 4:24PM Jul 17, 2019Observed: 1.08 ft at 4:30PM Jul 17, 2019Observed: 1.05 ft at 4:36PM Jul 17, 2019Observed: 1.02 ft at 4:42PM Jul 17, 2019Observed: 0.99 ft at 4:48PM Jul 17, 2019Observed: 0.98 ft at 4:54PM Jul 17, 2019Observed: 1.01 ft at 5:06PM Jul 17, 2019Observed: 1 ft at 5:12PM Jul 17, 2019Observed: 1.01 ft at 5:18PM Jul 17, 2019Observed: 1 ft at 5:24PM Jul 17, 2019Observed: 1.02 ft at 5:30PM Jul 17, 2019Observed: 1.04 ft at 5:36PM Jul 17, 2019Observed: 1.09 ft at 5:42PM Jul 17, 2019Observed: 1.13 ft at 5:48PM Jul 17, 2019Observed: 1.16 ft at 5:54PM Jul 17, 2019Observed: 1.18 ft at 6:00PM Jul 17, 2019Observed: 1.23 ft at 6:06PM Jul 17, 2019Observed: 1.28 ft at 6:12PM Jul 17, 2019Observed: 1.33 ft at 6:18PM Jul 17, 2019Observed: 1.35 ft at 6:24PM Jul 17, 2019Observed: 1.39 ft at 6:30PM Jul 17, 2019Observed: 1.46 ft at 6:36PM Jul 17, 2019Observed: 1.52 ft at 6:42PM Jul 17, 2019Observed: 1.57 ft at 6:48PM Jul 17, 2019Observed: 1.61 ft at 6:54PM Jul 17, 2019Observed: 1.71 ft at 7:00PM Jul 17, 2019Observed: 1.79 ft at 7:06PM Jul 17, 2019Observed: 1.9 ft at 7:12PM Jul 17, 2019Observed: 2.03 ft at 7:24PM Jul 17, 2019Observed: 2.08 ft at 7:30PM Jul 17, 2019Observed: 2.14 ft at 7:36PM Jul 17, 2019Observed: 2.14 ft at 7:42PM Jul 17, 2019Observed: 2.36 ft at 8:00PM Jul 17, 2019Observed: 2.44 ft at 8:06PM Jul 17, 2019Observed: 2.53 ft at 8:12PM Jul 17, 2019Observed: 2.61 ft at 8:18PM Jul 17, 2019Observed: 2.68 ft at 8:24PM Jul 17, 2019Observed: 2.7 ft at 8:30PM Jul 17, 2019Observed: 2.71 ft at 8:36PM Jul 17, 2019Observed: 2.75 ft at 8:42PM Jul 17, 2019Observed: 2.81 ft at 8:48PM Jul 17, 2019Observed: 2.84 ft at 8:54PM Jul 17, 2019Observed: 2.93 ft at 9:06PM Jul 17, 2019Observed: 2.97 ft at 9:12PM Jul 17, 2019Observed: 3.01 ft at 9:18PM Jul 17, 2019Observed: 3.04 ft at 9:24PM Jul 17, 2019Observed: 3.08 ft at 9:30PM Jul 17, 2019Observed: 3.14 ft at 9:36PM Jul 17, 2019Observed: 3.17 ft at 9:42PM Jul 17, 2019Observed: 3.24 ft at 9:48PM Jul 17, 2019Observed: 3.35 ft at 9:54PM Jul 17, 2019Observed: 3.44 ft at 10:00PM Jul 17, 2019Observed: 3.47 ft at 10:06PM Jul 17, 2019Observed: 3.43 ft at 10:12PM Jul 17, 2019Forecast: 3 ft 12:00AM Jul 18, 2019Forecast: 2.5 ft 1:00AM Jul 18, 2019Forecast: 1.9 ft 2:00AM Jul 18, 2019Forecast: 1.4 ft 3:00AM Jul 18, 2019Forecast: 0.8 ft 4:00AM Jul 18, 2019Forecast: 0.3 ft 5:00AM Jul 18, 2019Forecast: 0.4 ft 6:00AM Jul 18, 2019Forecast: 0.9 ft 7:00AM Jul 18, 2019Forecast: 1.6 ft 8:00AM Jul 18, 2019Forecast: 2.3 ft 9:00AM Jul 18, 2019Forecast: 2.9 ft 10:00AM Jul 18, 2019Forecast: 3.1 ft 11:00AM Jul 18, 2019Forecast: 3 ft 12:00PM Jul 18, 2019Forecast: 2.7 ft 1:00PM Jul 18, 2019Forecast: 2.4 ft 2:00PM Jul 18, 2019Forecast: 2 ft 3:00PM Jul 18, 2019Forecast: 1.5 ft 4:00PM Jul 18, 2019Forecast: 1.1 ft 5:00PM Jul 18, 2019Forecast: 1 ft 6:00PM Jul 18, 2019Forecast: 1.5 ft 7:00PM Jul 18, 2019Forecast: 2.1 ft 8:00PM Jul 18, 2019Forecast: 2.7 ft 9:00PM Jul 18, 2019Forecast: 3.2 ft 10:00PM Jul 18, 2019Highest Forecast: 3.6 ft 11:00PM Jul 18, 2019Forecast: 3.5 ft 12:00AM Jul 19, 2019Forecast: 3.1 ft 1:00AM Jul 19, 2019Forecast: 2.5 ft 2:00AM Jul 19, 2019Forecast: 2 ft 3:00AM Jul 19, 2019Forecast: 1.4 ft 4:00AM Jul 19, 2019Forecast: 0.9 ft 5:00AM Jul 19, 2019Forecast: 0.6 ft 6:00AM Jul 19, 2019Forecast: 0.8 ft 7:00AM Jul 19, 2019Forecast: 1.3 ft 8:00AM Jul 19, 2019Forecast: 2 ft 9:00AM Jul 19, 2019Forecast: 2.5 ft 10:00AM Jul 19, 2019Forecast: 2.9 ft 11:00AM Jul 19, 2019Forecast: 3.2 ft 12:00PM Jul 19, 2019Forecast: 3 ft 1:00PM Jul 19, 2019Forecast: 2.6 ft 2:00PM Jul 19, 2019Forecast: 2.2 ft 3:00PM Jul 19, 2019Forecast: 1.8 ft 4:00PM Jul 19, 2019Forecast: 1.3 ft 5:00PM Jul 19, 2019Forecast: 1.1 ft 6:00PM Jul 19, 2019Forecast: 1.2 ft 7:00PM Jul 19, 2019Forecast: 1.6 ft 8:00PM Jul 19, 2019Forecast: 2.2 ft 9:00PM Jul 19, 2019Forecast: 2.8 ft 10:00PM Jul 19, 2019Forecast: 3.2 ft 11:00PM Jul 19, 2019Forecast: 3.4 ft 12:00AM Jul 20, 2019Forecast: 3.3 ft 1:00AM Jul 20, 2019Forecast: 2.8 ft 2:00AM Jul 20, 2019NOAA National Ocean ServiceNLNC3(plotting HMIRG) Graph Created (11:01PM Jul 17, 2019)ObservedForecast (issued 3:55AM Jul 17)Latest observed value: 3.43 ft at 10:12 PM EDT 17-Jul-2019. Flood Stage is 5 ft
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Datum: Not Available
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NOTE: Tide Forecasts are a total water level forecast referenced to mean lower low water. Please refer to Coastal Flood Advisories and Warnings for official water level forecasts during periods of coastal flooding. During tropical cyclones, please refer here for additional storm surge information. Click here for Flood Category definitions.

Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts for the Long Island Sound near New London Harbor are issued routinely year-round.

Vertical Datum references a tidal datum (MLLW)...for more information see Tides and Currents .

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Flood Categories (in feet)
Major Flood Stage: 7.8
Moderate Flood Stage: 6
Flood Stage: 5
Action Stage: 0
Low Stage (in feet): -9999

Historic Crests
(1) 10.58 ft on 09/21/1938
(2) 9.58 ft on 08/31/1954
(3) 8.04 ft on 10/29/2012
(4) 7.58 ft on 11/25/1950
(5) 7.08 ft on 09/14/1944

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.04 ft on 10/29/2012
(2) 9.58 ft on 08/31/1954
(3) 7.58 ft on 11/25/1950
(4) 7.08 ft on 09/14/1944
(5) 10.58 ft on 09/21/1938

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
KML Image
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
8 Along low lying portions of the Long Island Sound, two to three feet of inundation is possible a few blocks inland with one to two feet of inundation possible north of I-95 in several low spots around waterways such as the Niantic River in Niantic, the Mystic River in Mystic. Nearly fifteen miles inland along the Connecticut and Thames Rivers, inundation is also possible with major damage in regions such as West End Drive and Seaside Lane in Old Lyme.
6.5 Inundation of one to two feet of water occurs on streets and several properties in Saybrook Point, as well as in the Marina where several feet of water is possible, as water reaches over the seawall.
6 Coastal flooding causes Niantic River Road to close between 1st and 2nd Avenue.
5 Flooding occurs in the downtown Mystic area directly along the waterfront, primarily in the street on Gravel Street and River Road. Groton experiences minor shoreline flooding.
Photos
(1) Tidal Gage at New London, CT
About This Location Collapse

Latitude: 41.350833° N, Longitude: 72.083889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 5 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 -1.84 3.16 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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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
National Weather Service
Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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Page last modified: 1-Mar-2019 12:35 AM
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