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Hydrograph River at a Glance Download
Boston Harbor at Boston Tide Height (ft)Observed: 5.67 ft at 2:36AM Dec 05, 2019Observed: 5.88 ft at 2:42AM Dec 05, 2019Observed: 6.06 ft at 2:48AM Dec 05, 2019Observed: 6.23 ft at 2:54AM Dec 05, 2019Observed: 6.42 ft at 3:00AM Dec 05, 2019Observed: 6.59 ft at 3:06AM Dec 05, 2019Observed: 6.76 ft at 3:12AM Dec 05, 2019Observed: 6.93 ft at 3:18AM Dec 05, 2019Observed: 7.1 ft at 3:24AM Dec 05, 2019Observed: 7.28 ft at 3:30AM Dec 05, 2019Observed: 7.46 ft at 3:36AM Dec 05, 2019Observed: 7.63 ft at 3:42AM Dec 05, 2019Observed: 7.8 ft at 3:48AM Dec 05, 2019Observed: 8.15 ft at 4:00AM Dec 05, 2019Observed: 8.28 ft at 4:06AM Dec 05, 2019Observed: 8.43 ft at 4:12AM Dec 05, 2019Observed: 8.56 ft at 4:18AM Dec 05, 2019Observed: 8.69 ft at 4:24AM Dec 05, 2019Observed: 8.8 ft at 4:30AM Dec 05, 2019Observed: 8.92 ft at 4:36AM Dec 05, 2019Observed: 9.02 ft at 4:42AM Dec 05, 2019Observed: 9.11 ft at 4:48AM Dec 05, 2019Observed: 9.19 ft at 4:54AM Dec 05, 2019Observed: 9.26 ft at 5:00AM Dec 05, 2019Observed: 9.31 ft at 5:06AM Dec 05, 2019Observed: 9.37 ft at 5:12AM Dec 05, 2019Observed: 9.43 ft at 5:18AM Dec 05, 2019Observed: 9.47 ft at 5:24AM Dec 05, 2019Observed: 9.52 ft at 5:30AM Dec 05, 2019Observed: 9.54 ft at 5:36AM Dec 05, 2019Highest Observation: 9.58 ft at 5:42AM Dec 05, 2019Highest Observation: 9.58 ft at 5:48AM Dec 05, 2019Observed: 9.57 ft at 5:54AM Dec 05, 2019Observed: 9.56 ft at 6:00AM Dec 05, 2019Observed: 9.52 ft at 6:06AM Dec 05, 2019Observed: 9.48 ft at 6:12AM Dec 05, 2019Observed: 9.45 ft at 6:18AM Dec 05, 2019Observed: 9.41 ft at 6:24AM Dec 05, 2019Observed: 9.37 ft at 6:30AM Dec 05, 2019Observed: 9.31 ft at 6:36AM Dec 05, 2019Observed: 9.27 ft at 6:42AM Dec 05, 2019Observed: 9.2 ft at 6:48AM Dec 05, 2019Observed: 9.13 ft at 6:54AM Dec 05, 2019Observed: 9.04 ft at 7:00AM Dec 05, 2019Observed: 8.95 ft at 7:06AM Dec 05, 2019Observed: 8.85 ft at 7:12AM Dec 05, 2019Observed: 8.77 ft at 7:18AM Dec 05, 2019Observed: 8.67 ft at 7:24AM Dec 05, 2019Observed: 8.58 ft at 7:30AM Dec 05, 2019Observed: 8.46 ft at 7:36AM Dec 05, 2019Observed: 8.35 ft at 7:42AM Dec 05, 2019Observed: 8.23 ft at 7:48AM Dec 05, 2019Observed: 8.1 ft at 7:54AM Dec 05, 2019Observed: 7.98 ft at 8:00AM Dec 05, 2019Observed: 7.85 ft at 8:06AM Dec 05, 2019Observed: 7.74 ft at 8:12AM Dec 05, 2019Observed: 7.61 ft at 8:18AM Dec 05, 2019Observed: 7.36 ft at 8:30AM Dec 05, 2019Observed: 7.2 ft at 8:36AM Dec 05, 2019Observed: 7.05 ft at 8:42AM Dec 05, 2019Observed: 6.89 ft at 8:48AM Dec 05, 2019Observed: 6.68 ft at 8:54AM Dec 05, 2019Observed: 6.49 ft at 9:00AM Dec 05, 2019Observed: 6.31 ft at 9:06AM Dec 05, 2019Observed: 6.14 ft at 9:12AM Dec 05, 2019Observed: 5.94 ft at 9:18AM Dec 05, 2019Observed: 5.76 ft at 9:24AM Dec 05, 2019Observed: 5.62 ft at 9:30AM Dec 05, 2019Observed: 5.46 ft at 9:36AM Dec 05, 2019Observed: 5.29 ft at 9:42AM Dec 05, 2019Observed: 5.13 ft at 9:48AM Dec 05, 2019Observed: 4.96 ft at 9:54AM Dec 05, 2019Observed: 4.79 ft at 10:00AM Dec 05, 2019Observed: 4.61 ft at 10:06AM Dec 05, 2019Observed: 4.44 ft at 10:12AM Dec 05, 2019Observed: 4.29 ft at 10:18AM Dec 05, 2019Observed: 4.15 ft at 10:24AM Dec 05, 2019Observed: 4.02 ft at 10:30AM Dec 05, 2019Observed: 3.9 ft at 10:36AM Dec 05, 2019Observed: 3.78 ft at 10:42AM Dec 05, 2019Observed: 3.67 ft at 10:48AM Dec 05, 2019Observed: 3.45 ft at 11:00AM Dec 05, 2019Observed: 3.34 ft at 11:06AM Dec 05, 2019Observed: 3.23 ft at 11:12AM Dec 05, 2019Observed: 3.11 ft at 11:18AM Dec 05, 2019Observed: 3.02 ft at 11:24AM Dec 05, 2019Observed: 2.97 ft at 11:30AM Dec 05, 2019Observed: 2.91 ft at 11:36AM Dec 05, 2019Observed: 2.89 ft at 11:42AM Dec 05, 2019Observed: 2.87 ft at 11:48AM Dec 05, 2019Observed: 2.86 ft at 11:54AM Dec 05, 2019Observed: 2.85 ft at 12:00PM Dec 05, 2019Observed: 2.87 ft at 12:06PM Dec 05, 2019Observed: 2.91 ft at 12:12PM Dec 05, 2019Observed: 2.94 ft at 12:18PM Dec 05, 2019Observed: 2.97 ft at 12:24PM Dec 05, 2019Observed: 3.02 ft at 12:30PM Dec 05, 2019Observed: 3.35 ft at 12:54PM Dec 05, 2019Observed: 3.45 ft at 1:00PM Dec 05, 2019Observed: 3.56 ft at 1:06PM Dec 05, 2019Observed: 3.68 ft at 1:12PM Dec 05, 2019Observed: 3.78 ft at 1:18PM Dec 05, 2019Observed: 3.87 ft at 1:24PM Dec 05, 2019Observed: 4 ft at 1:30PM Dec 05, 2019Observed: 4.12 ft at 1:36PM Dec 05, 2019Observed: 4.22 ft at 1:42PM Dec 05, 2019Observed: 4.31 ft at 1:48PM Dec 05, 2019Observed: 4.44 ft at 1:54PM Dec 05, 2019Observed: 4.56 ft at 2:00PM Dec 05, 2019Observed: 4.67 ft at 2:06PM Dec 05, 2019Observed: 4.79 ft at 2:12PM Dec 05, 2019Observed: 4.91 ft at 2:18PM Dec 05, 2019Observed: 5.03 ft at 2:24PM Dec 05, 2019Observed: 5.14 ft at 2:30PM Dec 05, 2019Observed: 5.24 ft at 2:36PM Dec 05, 2019Observed: 5.37 ft at 2:42PM Dec 05, 2019Observed: 5.51 ft at 2:48PM Dec 05, 2019Observed: 5.64 ft at 2:54PM Dec 05, 2019Observed: 5.79 ft at 3:00PM Dec 05, 2019Observed: 5.96 ft at 3:06PM Dec 05, 2019Observed: 6.1 ft at 3:12PM Dec 05, 2019Observed: 6.27 ft at 3:18PM Dec 05, 2019Observed: 6.42 ft at 3:24PM Dec 05, 2019Observed: 6.88 ft at 3:42PM Dec 05, 2019Observed: 7.07 ft at 3:48PM Dec 05, 2019Observed: 7.2 ft at 3:54PM Dec 05, 2019Observed: 7.39 ft at 4:00PM Dec 05, 2019Observed: 7.56 ft at 4:06PM Dec 05, 2019Observed: 7.75 ft at 4:12PM Dec 05, 2019Observed: 7.88 ft at 4:18PM Dec 05, 2019Observed: 8.03 ft at 4:24PM Dec 05, 2019Observed: 8.18 ft at 4:30PM Dec 05, 2019Observed: 8.31 ft at 4:36PM Dec 05, 2019Observed: 8.41 ft at 4:42PM Dec 05, 2019Observed: 8.53 ft at 4:48PM Dec 05, 2019Observed: 8.64 ft at 4:54PM Dec 05, 2019Observed: 8.74 ft at 5:00PM Dec 05, 2019Observed: 8.82 ft at 5:06PM Dec 05, 2019Observed: 8.9 ft at 5:12PM Dec 05, 2019Observed: 8.98 ft at 5:18PM Dec 05, 2019Observed: 9.06 ft at 5:24PM Dec 05, 2019Observed: 9.09 ft at 5:30PM Dec 05, 2019Observed: 9.13 ft at 5:36PM Dec 05, 2019Observed: 9.17 ft at 5:42PM Dec 05, 2019Observed: 9.18 ft at 5:48PM Dec 05, 2019Observed: 9.23 ft at 6:00PM Dec 05, 2019Observed: 9.25 ft at 6:06PM Dec 05, 2019Observed: 9.24 ft at 6:12PM Dec 05, 2019Observed: 9.24 ft at 6:18PM Dec 05, 2019Observed: 9.2 ft at 6:24PM Dec 05, 2019Observed: 9.19 ft at 6:30PM Dec 05, 2019Observed: 9.1 ft at 6:42PM Dec 05, 2019Observed: 8.99 ft at 6:54PM Dec 05, 2019Observed: 8.92 ft at 7:00PM Dec 05, 2019Observed: 8.85 ft at 7:06PM Dec 05, 2019Observed: 8.78 ft at 7:12PM Dec 05, 2019Observed: 8.68 ft at 7:18PM Dec 05, 2019Observed: 8.47 ft at 7:30PM Dec 05, 2019Observed: 8.38 ft at 7:36PM Dec 05, 2019Observed: 8.23 ft at 7:42PM Dec 05, 2019Observed: 8.11 ft at 7:48PM Dec 05, 2019Observed: 7.96 ft at 7:54PM Dec 05, 2019Observed: 7.81 ft at 8:00PM Dec 05, 2019Observed: 7.65 ft at 8:06PM Dec 05, 2019Observed: 7.49 ft at 8:12PM Dec 05, 2019Observed: 7.3 ft at 8:18PM Dec 05, 2019Observed: 7.16 ft at 8:24PM Dec 05, 2019Observed: 7.03 ft at 8:30PM Dec 05, 2019Observed: 6.84 ft at 8:36PM Dec 05, 2019Observed: 6.68 ft at 8:42PM Dec 05, 2019Observed: 6.51 ft at 8:48PM Dec 05, 2019Observed: 6.32 ft at 8:54PM Dec 05, 2019Observed: 6.16 ft at 9:00PM Dec 05, 2019Observed: 6.01 ft at 9:06PM Dec 05, 2019Observed: 5.81 ft at 9:12PM Dec 05, 2019Observed: 5.63 ft at 9:18PM Dec 05, 2019Observed: 5.46 ft at 9:24PM Dec 05, 2019Observed: 5.31 ft at 9:30PM Dec 05, 2019Observed: 5.14 ft at 9:36PM Dec 05, 2019Observed: 4.96 ft at 9:42PM Dec 05, 2019Observed: 4.8 ft at 9:48PM Dec 05, 2019Observed: 4.62 ft at 9:54PM Dec 05, 2019Observed: 4.45 ft at 10:00PM Dec 05, 2019Observed: 4.31 ft at 10:06PM Dec 05, 2019Observed: 4.16 ft at 10:12PM Dec 05, 2019Observed: 3.99 ft at 10:18PM Dec 05, 2019Observed: 3.67 ft at 10:30PM Dec 05, 2019Observed: 3.52 ft at 10:36PM Dec 05, 2019Observed: 3.35 ft at 10:42PM Dec 05, 2019Observed: 3.21 ft at 10:48PM Dec 05, 2019Observed: 3.03 ft at 10:54PM Dec 05, 2019Observed: 2.85 ft at 11:00PM Dec 05, 2019Observed: 2.7 ft at 11:06PM Dec 05, 2019Observed: 2.35 ft at 11:18PM Dec 05, 2019Observed: 2.21 ft at 11:24PM Dec 05, 2019Observed: 2.07 ft at 11:30PM Dec 05, 2019Observed: 1.95 ft at 11:36PM Dec 05, 2019Observed: 1.82 ft at 11:42PM Dec 05, 2019Observed: 1.76 ft at 11:48PM Dec 05, 2019Observed: 1.71 ft at 11:54PM Dec 05, 2019Observed: 1.67 ft at 12:00AM Dec 06, 2019Observed: 1.63 ft at 12:06AM Dec 06, 2019Observed: 1.62 ft at 12:12AM Dec 06, 2019Observed: 1.61 ft at 12:18AM Dec 06, 2019Observed: 1.62 ft at 12:24AM Dec 06, 2019Observed: 1.64 ft at 12:30AM Dec 06, 2019Observed: 1.63 ft at 12:36AM Dec 06, 2019Observed: 1.7 ft at 12:48AM Dec 06, 2019Observed: 1.76 ft at 12:54AM Dec 06, 2019Observed: 1.85 ft at 1:00AM Dec 06, 2019Observed: 1.97 ft at 1:06AM Dec 06, 2019Observed: 2.1 ft at 1:12AM Dec 06, 2019Observed: 2.2 ft at 1:18AM Dec 06, 2019Observed: 2.33 ft at 1:24AM Dec 06, 2019Observed: 2.48 ft at 1:30AM Dec 06, 2019Observed: 2.6 ft at 1:36AM Dec 06, 2019Observed: 2.71 ft at 1:42AM Dec 06, 2019Observed: 2.81 ft at 1:48AM Dec 06, 2019Observed: 2.89 ft at 1:54AM Dec 06, 2019Observed: 2.96 ft at 2:00AM Dec 06, 2019Observed: 3.04 ft at 2:06AM Dec 06, 2019Observed: 3.15 ft at 2:12AM Dec 06, 2019Observed: 3.24 ft at 2:18AM Dec 06, 2019Observed: 3.33 ft at 2:24AM Dec 06, 2019Observed: 3.44 ft at 2:30AM Dec 06, 2019Observed: 3.59 ft at 2:36AM Dec 06, 2019Observed: 3.73 ft at 2:42AM Dec 06, 2019Observed: 3.89 ft at 2:48AM Dec 06, 2019Observed: 4.08 ft at 2:54AM Dec 06, 2019Observed: 4.25 ft at 3:00AM Dec 06, 2019Observed: 4.43 ft at 3:06AM Dec 06, 2019Observed: 4.63 ft at 3:12AM Dec 06, 2019Observed: 4.82 ft at 3:18AM Dec 06, 2019Observed: 5 ft at 3:24AM Dec 06, 2019Observed: 5.16 ft at 3:30AM Dec 06, 2019Observed: 5.34 ft at 3:36AM Dec 06, 2019Observed: 5.52 ft at 3:42AM Dec 06, 2019Observed: 5.66 ft at 3:48AM Dec 06, 2019Observed: 5.81 ft at 3:54AM Dec 06, 2019Observed: 5.97 ft at 4:00AM Dec 06, 2019Observed: 6.13 ft at 4:06AM Dec 06, 2019Observed: 6.44 ft at 4:18AM Dec 06, 2019Observed: 6.63 ft at 4:24AM Dec 06, 2019Observed: 6.81 ft at 4:30AM Dec 06, 2019Observed: 6.98 ft at 4:36AM Dec 06, 2019Observed: 7.14 ft at 4:42AM Dec 06, 2019Observed: 7.35 ft at 4:48AM Dec 06, 2019Observed: 7.68 ft at 5:00AM Dec 06, 2019Observed: 7.8 ft at 5:06AM Dec 06, 2019Observed: 7.91 ft at 5:12AM Dec 06, 2019Observed: 8.02 ft at 5:18AM Dec 06, 2019Observed: 8.12 ft at 5:24AM Dec 06, 2019Observed: 8.23 ft at 5:30AM Dec 06, 2019Observed: 8.32 ft at 5:36AM Dec 06, 2019Observed: 8.47 ft at 5:48AM Dec 06, 2019Observed: 8.54 ft at 5:54AM Dec 06, 2019Observed: 8.63 ft at 6:00AM Dec 06, 2019Observed: 8.69 ft at 6:06AM Dec 06, 2019Observed: 8.72 ft at 6:12AM Dec 06, 2019Observed: 8.74 ft at 6:18AM Dec 06, 2019Observed: 8.76 ft at 6:24AM Dec 06, 2019Observed: 8.8 ft at 6:30AM Dec 06, 2019Observed: 8.81 ft at 6:36AM Dec 06, 2019Observed: 8.83 ft at 6:42AM Dec 06, 2019Observed: 8.88 ft at 6:48AM Dec 06, 2019Observed: 8.92 ft at 6:54AM Dec 06, 2019Observed: 8.91 ft at 7:00AM Dec 06, 2019Observed: 8.95 ft at 7:06AM Dec 06, 2019Observed: 8.95 ft at 7:12AM Dec 06, 2019Observed: 8.9 ft at 7:18AM Dec 06, 2019Observed: 8.82 ft at 7:24AM Dec 06, 2019Observed: 8.8 ft at 7:30AM Dec 06, 2019Observed: 8.73 ft at 7:36AM Dec 06, 2019Observed: 8.52 ft at 7:48AM Dec 06, 2019Observed: 8.47 ft at 7:54AM Dec 06, 2019Observed: 8.35 ft at 8:00AM Dec 06, 2019Observed: 8.26 ft at 8:06AM Dec 06, 2019Observed: 8.08 ft at 8:12AM Dec 06, 2019Observed: 7.98 ft at 8:18AM Dec 06, 2019Observed: 7.8 ft at 8:24AM Dec 06, 2019Observed: 7.67 ft at 8:30AM Dec 06, 2019Observed: 7.48 ft at 8:36AM Dec 06, 2019Observed: 7.23 ft at 8:48AM Dec 06, 2019Observed: 7.13 ft at 8:54AM Dec 06, 2019Observed: 6.99 ft at 9:00AM Dec 06, 2019Observed: 6.9 ft at 9:06AM Dec 06, 2019Observed: 6.68 ft at 9:18AM Dec 06, 2019Observed: 6.5 ft at 9:24AM Dec 06, 2019Observed: 6.35 ft at 9:30AM Dec 06, 2019Observed: 6.14 ft at 9:36AM Dec 06, 2019Observed: 5.94 ft at 9:42AM Dec 06, 2019Observed: 5.75 ft at 9:48AM Dec 06, 2019Observed: 5.58 ft at 9:54AM Dec 06, 2019Observed: 5.37 ft at 10:00AM Dec 06, 2019Observed: 5.19 ft at 10:06AM Dec 06, 2019Observed: 5.04 ft at 10:12AM Dec 06, 2019Observed: 4.85 ft at 10:18AM Dec 06, 2019Observed: 4.69 ft at 10:24AM Dec 06, 2019Observed: 4.51 ft at 10:30AM Dec 06, 2019Observed: 4.37 ft at 10:36AM Dec 06, 2019Observed: 4.15 ft at 10:42AM Dec 06, 2019Observed: 3.96 ft at 10:48AM Dec 06, 2019Observed: 3.68 ft at 11:00AM Dec 06, 2019Observed: 3.52 ft at 11:06AM Dec 06, 2019Observed: 3.34 ft at 11:12AM Dec 06, 2019Observed: 3.24 ft at 11:18AM Dec 06, 2019Observed: 2.94 ft at 11:30AM Dec 06, 2019Observed: 2.81 ft at 11:36AM Dec 06, 2019Observed: 2.67 ft at 11:42AM Dec 06, 2019Observed: 2.57 ft at 11:48AM Dec 06, 2019Observed: 2.42 ft at 11:54AM Dec 06, 2019Observed: 2.31 ft at 12:00PM Dec 06, 2019Observed: 2.24 ft at 12:06PM Dec 06, 2019Observed: 2.06 ft at 12:24PM Dec 06, 2019Observed: 2.02 ft at 12:30PM Dec 06, 2019Observed: 1.98 ft at 12:36PM Dec 06, 2019Observed: 1.97 ft at 12:42PM Dec 06, 2019Observed: 1.89 ft at 12:48PM Dec 06, 2019Observed: 1.96 ft at 12:54PM Dec 06, 2019Observed: 2.01 ft at 1:00PM Dec 06, 2019Observed: 2 ft at 1:06PM Dec 06, 2019Observed: 2.09 ft at 1:12PM Dec 06, 2019Observed: 2.14 ft at 1:18PM Dec 06, 2019Observed: 2.22 ft at 1:24PM Dec 06, 2019Observed: 2.27 ft at 1:30PM Dec 06, 2019Observed: 2.35 ft at 1:36PM Dec 06, 2019Observed: 2.44 ft at 1:42PM Dec 06, 2019Observed: 2.49 ft at 1:48PM Dec 06, 2019Observed: 2.57 ft at 1:54PM Dec 06, 2019Observed: 2.62 ft at 2:00PM Dec 06, 2019Observed: 2.72 ft at 2:06PM Dec 06, 2019Observed: 2.81 ft at 2:12PM Dec 06, 2019Observed: 2.89 ft at 2:18PM Dec 06, 2019Observed: 3 ft at 2:24PM Dec 06, 2019Observed: 3.09 ft at 2:30PM Dec 06, 2019Observed: 3.2 ft at 2:36PM Dec 06, 2019Observed: 3.27 ft at 2:42PM Dec 06, 2019Observed: 3.39 ft at 2:48PM Dec 06, 2019Observed: 3.51 ft at 2:54PM Dec 06, 2019Observed: 3.63 ft at 3:00PM Dec 06, 2019Observed: 3.78 ft at 3:06PM Dec 06, 2019Observed: 3.95 ft at 3:12PM Dec 06, 2019Observed: 4.12 ft at 3:18PM Dec 06, 2019Observed: 4.3 ft at 3:24PM Dec 06, 2019Observed: 4.49 ft at 3:30PM Dec 06, 2019Observed: 4.66 ft at 3:36PM Dec 06, 2019Observed: 4.84 ft at 3:42PM Dec 06, 2019Observed: 5.01 ft at 3:48PM Dec 06, 2019Observed: 5.12 ft at 3:54PM Dec 06, 2019Observed: 5.26 ft at 4:00PM Dec 06, 2019Observed: 5.42 ft at 4:06PM Dec 06, 2019Observed: 5.62 ft at 4:12PM Dec 06, 2019Observed: 5.77 ft at 4:18PM Dec 06, 2019Observed: 5.95 ft at 4:24PM Dec 06, 2019Observed: 6.17 ft at 4:30PM Dec 06, 2019Observed: 6.35 ft at 4:36PM Dec 06, 2019Observed: 6.55 ft at 4:42PM Dec 06, 2019Observed: 6.74 ft at 4:48PM Dec 06, 2019Observed: 7.04 ft at 5:00PM Dec 06, 2019Observed: 7.2 ft at 5:06PM Dec 06, 2019Observed: 7.33 ft at 5:12PM Dec 06, 2019Observed: 7.5 ft at 5:18PM Dec 06, 2019Observed: 7.67 ft at 5:24PM Dec 06, 2019Observed: 7.81 ft at 5:30PM Dec 06, 2019Observed: 7.94 ft at 5:36PM Dec 06, 2019Observed: 8.06 ft at 5:42PM Dec 06, 2019Observed: 8.18 ft at 5:48PM Dec 06, 2019Observed: 8.28 ft at 5:54PM Dec 06, 2019Observed: 8.38 ft at 6:00PM Dec 06, 2019Observed: 8.44 ft at 6:06PM Dec 06, 2019Observed: 8.61 ft at 6:18PM Dec 06, 2019Observed: 8.68 ft at 6:24PM Dec 06, 2019Observed: 8.78 ft at 6:30PM Dec 06, 2019Observed: 8.81 ft at 6:36PM Dec 06, 2019Observed: 8.86 ft at 6:54PM Dec 06, 2019Observed: 8.87 ft at 7:00PM Dec 06, 2019Observed: 8.86 ft at 7:06PM Dec 06, 2019Observed: 8.84 ft at 7:18PM Dec 06, 2019Observed: 8.84 ft at 7:24PM Dec 06, 2019Observed: 8.82 ft at 7:30PM Dec 06, 2019Observed: 8.78 ft at 7:36PM Dec 06, 2019Observed: 8.67 ft at 7:42PM Dec 06, 2019Observed: 8.58 ft at 7:48PM Dec 06, 2019Observed: 8.48 ft at 7:54PM Dec 06, 2019Observed: 8.35 ft at 8:00PM Dec 06, 2019Observed: 8.25 ft at 8:06PM Dec 06, 2019Observed: 8.14 ft at 8:12PM Dec 06, 2019Observed: 8.02 ft at 8:18PM Dec 06, 2019Observed: 7.93 ft at 8:24PM Dec 06, 2019Observed: 7.86 ft at 8:30PM Dec 06, 2019Observed: 7.77 ft at 8:36PM Dec 06, 2019Observed: 7.67 ft at 8:42PM Dec 06, 2019Observed: 7.53 ft at 8:48PM Dec 06, 2019Observed: 7.39 ft at 8:54PM Dec 06, 2019Observed: 7.25 ft at 9:00PM Dec 06, 2019Observed: 7.13 ft at 9:06PM Dec 06, 2019Observed: 6.79 ft at 9:18PM Dec 06, 2019Observed: 6.63 ft at 9:24PM Dec 06, 2019Observed: 6.51 ft at 9:30PM Dec 06, 2019Observed: 6.31 ft at 9:36PM Dec 06, 2019Observed: 6.15 ft at 9:42PM Dec 06, 2019Observed: 6.02 ft at 9:48PM Dec 06, 2019Observed: 5.8 ft at 9:54PM Dec 06, 2019Observed: 5.61 ft at 10:00PM Dec 06, 2019Observed: 5.43 ft at 10:06PM Dec 06, 2019Observed: 5.05 ft at 10:18PM Dec 06, 2019Observed: 4.88 ft at 10:24PM Dec 06, 2019Observed: 4.68 ft at 10:30PM Dec 06, 2019Observed: 4.51 ft at 10:36PM Dec 06, 2019Observed: 4.34 ft at 10:42PM Dec 06, 2019Observed: 4.17 ft at 10:48PM Dec 06, 2019Observed: 4 ft at 10:54PM Dec 06, 2019Observed: 3.84 ft at 11:00PM Dec 06, 2019Observed: 3.66 ft at 11:06PM Dec 06, 2019Observed: 3.53 ft at 11:12PM Dec 06, 2019Observed: 3.36 ft at 11:18PM Dec 06, 2019Observed: 3.19 ft at 11:24PM Dec 06, 2019Observed: 3.01 ft at 11:30PM Dec 06, 2019Observed: 2.85 ft at 11:36PM Dec 06, 2019Observed: 2.66 ft at 11:42PM Dec 06, 2019Observed: 2.48 ft at 11:48PM Dec 06, 2019Observed: 2.21 ft at 12:00AM Dec 07, 2019Observed: 2.07 ft at 12:06AM Dec 07, 2019Observed: 1.96 ft at 12:12AM Dec 07, 2019Observed: 1.91 ft at 12:18AM Dec 07, 2019Observed: 1.87 ft at 12:24AM Dec 07, 2019Observed: 1.79 ft at 12:30AM Dec 07, 2019Observed: 1.75 ft at 12:36AM Dec 07, 2019Observed: 1.66 ft at 12:48AM Dec 07, 2019Observed: 1.59 ft at 12:54AM Dec 07, 2019Observed: 1.56 ft at 1:00AM Dec 07, 2019Observed: 1.54 ft at 1:06AM Dec 07, 2019Observed: 1.5 ft at 1:12AM Dec 07, 2019Observed: 1.47 ft at 1:18AM Dec 07, 2019Observed: 1.51 ft at 1:30AM Dec 07, 2019Observed: 1.53 ft at 1:36AM Dec 07, 2019Observed: 1.57 ft at 1:42AM Dec 07, 2019Observed: 1.63 ft at 1:48AM Dec 07, 2019Observed: 1.73 ft at 1:54AM Dec 07, 2019Observed: 1.82 ft at 2:00AM Dec 07, 2019Observed: 1.91 ft at 2:06AM Dec 07, 2019Observed: 2 ft at 2:12AM Dec 07, 2019Observed: 2.12 ft at 2:18AM Dec 07, 2019Observed: 2.21 ft at 2:24AM Dec 07, 2019Observed: 2.3 ft at 2:30AM Dec 07, 2019Observed: 2.42 ft at 2:36AM Dec 07, 2019Observed: 2.53 ft at 2:42AM Dec 07, 2019Observed: 2.62 ft at 2:48AM Dec 07, 2019Observed: 2.86 ft at 3:00AM Dec 07, 2019Observed: 2.99 ft at 3:06AM Dec 07, 2019Observed: 3.1 ft at 3:12AM Dec 07, 2019Observed: 3.24 ft at 3:18AM Dec 07, 2019Observed: 3.38 ft at 3:24AM Dec 07, 2019Observed: 3.51 ft at 3:30AM Dec 07, 2019Observed: 3.66 ft at 3:36AM Dec 07, 2019Observed: 3.79 ft at 3:42AM Dec 07, 2019Observed: 3.94 ft at 3:48AM Dec 07, 2019Observed: 4.11 ft at 3:54AM Dec 07, 2019Observed: 4.29 ft at 4:00AM Dec 07, 2019Observed: 4.52 ft at 4:06AM Dec 07, 2019Observed: 4.73 ft at 4:12AM Dec 07, 2019Observed: 4.92 ft at 4:18AM Dec 07, 2019Observed: 5.14 ft at 4:24AM Dec 07, 2019Observed: 5.32 ft at 4:30AM Dec 07, 2019Observed: 5.5 ft at 4:36AM Dec 07, 2019Observed: 5.67 ft at 4:42AM Dec 07, 2019Observed: 5.84 ft at 4:48AM Dec 07, 2019Observed: 5.96 ft at 4:54AM Dec 07, 2019Observed: 6.12 ft at 5:00AM Dec 07, 2019Observed: 6.31 ft at 5:06AM Dec 07, 2019Observed: 6.51 ft at 5:12AM Dec 07, 2019Observed: 6.69 ft at 5:18AM Dec 07, 2019Observed: 6.9 ft at 5:24AM Dec 07, 2019Observed: 7.1 ft at 5:30AM Dec 07, 2019Observed: 7.31 ft at 5:36AM Dec 07, 2019Observed: 7.49 ft at 5:42AM Dec 07, 2019Observed: 7.66 ft at 5:48AM Dec 07, 2019Observed: 7.78 ft at 5:54AM Dec 07, 2019Observed: 7.91 ft at 6:00AM Dec 07, 2019Observed: 8.03 ft at 6:06AM Dec 07, 2019Observed: 8.16 ft at 6:12AM Dec 07, 2019Observed: 8.3 ft at 6:18AM Dec 07, 2019Observed: 8.45 ft at 6:24AM Dec 07, 2019Observed: 8.58 ft at 6:30AM Dec 07, 2019Observed: 8.69 ft at 6:36AM Dec 07, 2019Observed: 8.8 ft at 6:42AM Dec 07, 2019Observed: 8.92 ft at 6:48AM Dec 07, 2019Observed: 9.06 ft at 7:00AM Dec 07, 2019Observed: 9.09 ft at 7:06AM Dec 07, 2019Observed: 9.13 ft at 7:12AM Dec 07, 2019Observed: 9.16 ft at 7:18AM Dec 07, 2019Observed: 9.22 ft at 7:24AM Dec 07, 2019Observed: 9.22 ft at 7:30AM Dec 07, 2019Observed: 9.22 ft at 7:36AM Dec 07, 2019Observed: 9.23 ft at 7:42AM Dec 07, 2019Observed: 9.18 ft at 7:48AM Dec 07, 2019Observed: 9.15 ft at 7:54AM Dec 07, 2019Observed: 9.09 ft at 8:00AM Dec 07, 2019Observed: 9.03 ft at 8:06AM Dec 07, 2019Observed: 8.96 ft at 8:12AM Dec 07, 2019Observed: 8.89 ft at 8:18AM Dec 07, 2019Observed: 8.83 ft at 8:24AM Dec 07, 2019Observed: 8.8 ft at 8:30AM Dec 07, 2019Observed: 8.76 ft at 8:36AM Dec 07, 2019Observed: 8.7 ft at 8:42AM Dec 07, 2019Observed: 8.62 ft at 8:48AM Dec 07, 2019Observed: 8.54 ft at 8:54AM Dec 07, 2019Observed: 8.46 ft at 9:00AM Dec 07, 2019Observed: 8.36 ft at 9:06AM Dec 07, 2019Observed: 8.24 ft at 9:12AM Dec 07, 2019Observed: 8.12 ft at 9:18AM Dec 07, 2019Observed: 7.97 ft at 9:24AM Dec 07, 2019Observed: 7.81 ft at 9:30AM Dec 07, 2019Observed: 7.65 ft at 9:36AM Dec 07, 2019Observed: 7.49 ft at 9:42AM Dec 07, 2019Observed: 7.31 ft at 9:48AM Dec 07, 2019Observed: 7.11 ft at 9:54AM Dec 07, 2019Observed: 6.95 ft at 10:00AM Dec 07, 2019Observed: 6.79 ft at 10:06AM Dec 07, 2019Observed: 6.6 ft at 10:12AM Dec 07, 2019Observed: 6.44 ft at 10:18AM Dec 07, 2019Observed: 6.26 ft at 10:24AM Dec 07, 2019Observed: 6.1 ft at 10:30AM Dec 07, 2019Observed: 5.94 ft at 10:36AM Dec 07, 2019Observed: 5.77 ft at 10:42AM Dec 07, 2019Observed: 5.6 ft at 10:48AM Dec 07, 2019Observed: 5.4 ft at 10:54AM Dec 07, 2019Observed: 5.21 ft at 11:00AM Dec 07, 2019Observed: 5.04 ft at 11:06AM Dec 07, 2019Observed: 4.88 ft at 11:12AM Dec 07, 2019Observed: 4.69 ft at 11:18AM Dec 07, 2019Observed: 4.53 ft at 11:24AM Dec 07, 2019Observed: 4.36 ft at 11:30AM Dec 07, 2019Observed: 4.19 ft at 11:36AM Dec 07, 2019Observed: 4.04 ft at 11:42AM Dec 07, 2019Observed: 3.88 ft at 11:48AM Dec 07, 2019Observed: 3.73 ft at 11:54AM Dec 07, 2019Observed: 3.56 ft at 12:00PM Dec 07, 2019Observed: 3.35 ft at 12:06PM Dec 07, 2019Observed: 3.19 ft at 12:12PM Dec 07, 2019Observed: 3 ft at 12:18PM Dec 07, 2019Observed: 2.8 ft at 12:24PM Dec 07, 2019Observed: 2.64 ft at 12:30PM Dec 07, 2019Observed: 2.49 ft at 12:36PM Dec 07, 2019Observed: 2.34 ft at 12:42PM Dec 07, 2019Observed: 2.21 ft at 12:48PM Dec 07, 2019Observed: 2.1 ft at 12:54PM Dec 07, 2019Observed: 2.05 ft at 1:00PM Dec 07, 2019Observed: 1.98 ft at 1:06PM Dec 07, 2019Observed: 1.95 ft at 1:12PM Dec 07, 2019Observed: 1.91 ft at 1:18PM Dec 07, 2019Observed: 1.88 ft at 1:24PM Dec 07, 2019Observed: 1.87 ft at 1:30PM Dec 07, 2019Observed: 1.84 ft at 1:36PM Dec 07, 2019Observed: 1.85 ft at 1:42PM Dec 07, 2019Observed: 1.84 ft at 1:48PM Dec 07, 2019Observed: 1.83 ft at 1:54PM Dec 07, 2019Observed: 1.85 ft at 2:00PM Dec 07, 2019Observed: 1.91 ft at 2:06PM Dec 07, 2019Observed: 1.98 ft at 2:12PM Dec 07, 2019Observed: 2.04 ft at 2:18PM Dec 07, 2019Observed: 2.11 ft at 2:24PM Dec 07, 2019Observed: 2.19 ft at 2:30PM Dec 07, 2019Observed: 2.26 ft at 2:36PM Dec 07, 2019Observed: 2.33 ft at 2:42PM Dec 07, 2019Observed: 2.38 ft at 2:48PM Dec 07, 2019Observed: 2.44 ft at 2:54PM Dec 07, 2019Observed: 2.49 ft at 3:00PM Dec 07, 2019Observed: 2.54 ft at 3:06PM Dec 07, 2019Observed: 2.62 ft at 3:12PM Dec 07, 2019Observed: 2.68 ft at 3:18PM Dec 07, 2019Observed: 2.75 ft at 3:24PM Dec 07, 2019Observed: 2.84 ft at 3:30PM Dec 07, 2019Observed: 2.98 ft at 3:36PM Dec 07, 2019Observed: 3.12 ft at 3:42PM Dec 07, 2019Observed: 3.25 ft at 3:48PM Dec 07, 2019Observed: 3.4 ft at 3:54PM Dec 07, 2019Observed: 3.54 ft at 4:00PM Dec 07, 2019Observed: 3.69 ft at 4:06PM Dec 07, 2019Observed: 3.83 ft at 4:12PM Dec 07, 2019Observed: 4 ft at 4:18PM Dec 07, 2019Observed: 4.17 ft at 4:24PM Dec 07, 2019Observed: 4.33 ft at 4:30PM Dec 07, 2019Observed: 4.52 ft at 4:36PM Dec 07, 2019Observed: 4.69 ft at 4:42PM Dec 07, 2019Observed: 4.88 ft at 4:48PM Dec 07, 2019Observed: 5.06 ft at 4:54PM Dec 07, 2019Observed: 5.25 ft at 5:00PM Dec 07, 2019Observed: 5.44 ft at 5:06PM Dec 07, 2019Observed: 5.76 ft at 5:18PM Dec 07, 2019Observed: 5.91 ft at 5:24PM Dec 07, 2019Observed: 6.08 ft at 5:30PM Dec 07, 2019Observed: 6.2 ft at 5:36PM Dec 07, 2019Observed: 6.38 ft at 5:42PM Dec 07, 2019Observed: 6.53 ft at 5:48PM Dec 07, 2019Observed: 6.69 ft at 5:54PM Dec 07, 2019Observed: 6.84 ft at 6:00PM Dec 07, 2019Observed: 7 ft at 6:06PM Dec 07, 2019Observed: 7.26 ft at 6:18PM Dec 07, 2019Observed: 7.38 ft at 6:24PM Dec 07, 2019Observed: 7.5 ft at 6:30PM Dec 07, 2019Observed: 7.61 ft at 6:36PM Dec 07, 2019Observed: 8 ft at 6:54PM Dec 07, 2019Observed: 8.1 ft at 7:00PM Dec 07, 2019Observed: 8.19 ft at 7:06PM Dec 07, 2019Observed: 8.26 ft at 7:12PM Dec 07, 2019Observed: 8.33 ft at 7:18PM Dec 07, 2019Observed: 8.39 ft at 7:24PM Dec 07, 2019Observed: 8.43 ft at 7:30PM Dec 07, 2019Observed: 8.45 ft at 7:36PM Dec 07, 2019Observed: 8.46 ft at 7:42PM Dec 07, 2019Observed: 8.48 ft at 7:48PM Dec 07, 2019Observed: 8.48 ft at 7:54PM Dec 07, 2019Observed: 8.5 ft at 8:00PM Dec 07, 2019Observed: 8.48 ft at 8:06PM Dec 07, 2019Observed: 8.46 ft at 8:12PM Dec 07, 2019Observed: 8.44 ft at 8:18PM Dec 07, 2019Observed: 8.38 ft at 8:24PM Dec 07, 2019Observed: 8.32 ft at 8:30PM Dec 07, 2019Observed: 8.28 ft at 8:36PM Dec 07, 2019Observed: 8.2 ft at 8:42PM Dec 07, 2019Observed: 8.11 ft at 8:48PM Dec 07, 2019Observed: 8.04 ft at 8:54PM Dec 07, 2019Observed: 7.96 ft at 9:00PM Dec 07, 2019Observed: 7.88 ft at 9:06PM Dec 07, 2019Observed: 7.74 ft at 9:18PM Dec 07, 2019Observed: 7.65 ft at 9:24PM Dec 07, 2019Observed: 7.54 ft at 9:30PM Dec 07, 2019Observed: 7.42 ft at 9:36PM Dec 07, 2019Observed: 7.3 ft at 9:42PM Dec 07, 2019Observed: 7.16 ft at 9:48PM Dec 07, 2019Observed: 6.82 ft at 10:00PM Dec 07, 2019Observed: 6.67 ft at 10:06PM Dec 07, 2019Observed: 6.48 ft at 10:12PM Dec 07, 2019Observed: 6.31 ft at 10:18PM Dec 07, 2019Observed: 6.17 ft at 10:24PM Dec 07, 2019Observed: 5.99 ft at 10:30PM Dec 07, 2019Observed: 5.82 ft at 10:36PM Dec 07, 2019Observed: 5.64 ft at 10:42PM Dec 07, 2019Observed: 5.46 ft at 10:48PM Dec 07, 2019Observed: 5.28 ft at 10:54PM Dec 07, 2019Observed: 5.11 ft at 11:00PM Dec 07, 2019Observed: 4.92 ft at 11:06PM Dec 07, 2019Observed: 4.74 ft at 11:12PM Dec 07, 2019Observed: 4.56 ft at 11:18PM Dec 07, 2019Observed: 4.38 ft at 11:24PM Dec 07, 2019Observed: 4.19 ft at 11:30PM Dec 07, 2019Observed: 4.03 ft at 11:36PM Dec 07, 2019Observed: 3.85 ft at 11:42PM Dec 07, 2019Observed: 3.7 ft at 11:48PM Dec 07, 2019Observed: 3.54 ft at 11:54PM Dec 07, 2019Observed: 3.38 ft at 12:00AM Dec 08, 2019Observed: 3.23 ft at 12:06AM Dec 08, 2019Observed: 3.07 ft at 12:12AM Dec 08, 2019Observed: 2.91 ft at 12:18AM Dec 08, 2019Observed: 2.75 ft at 12:24AM Dec 08, 2019Observed: 2.58 ft at 12:30AM Dec 08, 2019Observed: 2.41 ft at 12:36AM Dec 08, 2019Observed: 2.26 ft at 12:42AM Dec 08, 2019Observed: 2.11 ft at 12:48AM Dec 08, 2019Observed: 2 ft at 12:54AM Dec 08, 2019Observed: 1.9 ft at 1:00AM Dec 08, 2019Observed: 1.8 ft at 1:06AM Dec 08, 2019Observed: 1.71 ft at 1:12AM Dec 08, 2019Observed: 1.64 ft at 1:18AM Dec 08, 2019Observed: 1.58 ft at 1:24AM Dec 08, 2019Observed: 1.54 ft at 1:30AM Dec 08, 2019Observed: 1.5 ft at 1:36AM Dec 08, 2019Observed: 1.46 ft at 1:42AM Dec 08, 2019Observed: 1.43 ft at 1:48AM Dec 08, 2019Observed: 1.41 ft at 1:54AM Dec 08, 2019Observed: 1.41 ft at 2:00AM Dec 08, 2019Forecast: 1.7 ft 3:00AM Dec 08, 2019Forecast: 3 ft 4:00AM Dec 08, 2019Forecast: 4.7 ft 5:00AM Dec 08, 2019Forecast: 6.7 ft 6:00AM Dec 08, 2019Forecast: 8.4 ft 7:00AM Dec 08, 2019Forecast: 9.1 ft 8:00AM Dec 08, 2019Forecast: 8.8 ft 9:00AM Dec 08, 2019Forecast: 7.6 ft 10:00AM Dec 08, 2019Forecast: 6 ft 11:00AM Dec 08, 2019Forecast: 4 ft 12:00PM Dec 08, 2019Forecast: 2 ft 1:00PM Dec 08, 2019Forecast: 0.7 ft 2:00PM Dec 08, 2019Forecast: 0.9 ft 3:00PM Dec 08, 2019Forecast: 1.9 ft 4:00PM Dec 08, 2019Forecast: 3.3 ft 5:00PM Dec 08, 2019Forecast: 5.2 ft 6:00PM Dec 08, 2019Forecast: 7.1 ft 7:00PM Dec 08, 2019Forecast: 8.3 ft 8:00PM Dec 08, 2019Forecast: 8.5 ft 9:00PM Dec 08, 2019Forecast: 7.7 ft 10:00PM Dec 08, 2019Forecast: 6.2 ft 11:00PM Dec 08, 2019Forecast: 4.4 ft 12:00AM Dec 09, 2019Forecast: 2.6 ft 1:00AM Dec 09, 2019Forecast: 1.2 ft 2:00AM Dec 09, 2019Forecast: 0.9 ft 3:00AM Dec 09, 2019Forecast: 1.9 ft 4:00AM Dec 09, 2019Forecast: 3.5 ft 5:00AM Dec 09, 2019Forecast: 5.4 ft 6:00AM Dec 09, 2019Forecast: 7.5 ft 7:00AM Dec 09, 2019Forecast: 9 ft 8:00AM Dec 09, 2019Forecast: 9.5 ft 9:00AM Dec 09, 2019Forecast: 8.8 ft 10:00AM Dec 09, 2019Forecast: 7.4 ft 11:00AM Dec 09, 2019Forecast: 5.4 ft 12:00PM Dec 09, 2019Forecast: 3.3 ft 1:00PM Dec 09, 2019Forecast: 1.3 ft 2:00PM Dec 09, 2019Forecast: 0.3 ft 3:00PM Dec 09, 2019Forecast: 0.7 ft 4:00PM Dec 09, 2019Forecast: 1.9 ft 5:00PM Dec 09, 2019Forecast: 3.6 ft 6:00PM Dec 09, 2019Forecast: 5.7 ft 7:00PM Dec 09, 2019Forecast: 7.6 ft 8:00PM Dec 09, 2019Forecast: 8.7 ft 9:00PM Dec 09, 2019Forecast: 8.5 ft 10:00PM Dec 09, 2019Forecast: 7.5 ft 11:00PM Dec 09, 2019Forecast: 5.8 ft 12:00AM Dec 10, 2019Forecast: 3.9 ft 1:00AM Dec 10, 2019Forecast: 2 ft 2:00AM Dec 10, 2019Forecast: 0.7 ft 3:00AM Dec 10, 2019Forecast: 1 ft 4:00AM Dec 10, 2019Forecast: 2.3 ft 5:00AM Dec 10, 2019Forecast: 4.1 ft 6:00AM Dec 10, 2019Forecast: 6.2 ft 7:00AM Dec 10, 2019Forecast: 8.3 ft 8:00AM Dec 10, 2019Forecast: 9.6 ft 9:00AM Dec 10, 2019Highest Forecast: 9.8 ft 10:00AM Dec 10, 2019Forecast: 8.7 ft 11:00AM Dec 10, 2019Forecast: 6.9 ft 12:00PM Dec 10, 2019Forecast: 4.7 ft 1:00PM Dec 10, 2019Forecast: 2.4 ft 2:00PM Dec 10, 2019Forecast: 0.5 ft 3:00PM Dec 10, 2019NOAA Center for Operational Oceanographic Products and ServicesBHBM3(plotting HMIRG) Graph Created (2:30AM Dec 8, 2019)ObservedForecast (issued 4:19PM Dec 7)Latest observed value: 1.41 ft at 2:00 AM EST 8-Dec-2019. Flood Stage is 12.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Please refer to our Coastal Hazard Message for specific information regarding Coastal Flood Watches, Warnings and Advisories. Actual impacts from any coastal flooding event may vary due to factors such as rainfall, wave action, and the number of tide cycles during which there is an onshore flow. During tropical cyclones, please refer here for additional storm surge information.

NOTE: During a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the National Hurricane Center (go to the web site and select the storm of interest) reflects a plausible worst case scenario. The forecast above is the total water forecast that is most likely to occur.

NOTE: Forecasts for the Boston Harbor at Boston are issued routinely year-round.

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

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Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 14.5
Flood Stage: 12.5
Action Stage: 11.5
Low Stage (in feet): -9999

Historic Crests
(1) 15.16 ft on 01/04/2018
(2) 15.10 ft on 02/07/1978
(3) 14.67 ft on 03/02/2018
(4) 14.20 ft on 01/02/1987
(5) 14.14 ft on 10/30/1991
(6) 14.04 ft on 01/24/1979
(7) 14.03 ft on 12/12/1992
(8) 13.87 ft on 03/03/2018
(9) 13.84 ft on 01/03/2014
(10) 13.84 ft on 12/29/1959
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.91 ft on 10/17/2019 (P)
(2) 12.90 ft on 03/22/2019
(3) 13.10 ft on 01/20/2019
(4) 13.05 ft on 11/25/2018
(5) 12.54 ft on 09/10/2018
(6) 13.87 ft on 03/03/2018
(7) 14.67 ft on 03/02/2018
(8) 13.24 ft on 01/30/2018
(9) 15.16 ft on 01/04/2018
(10) 13.10 ft on 05/28/2017
Show More Recent Crests

(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
16 This is a degree of flooding rarely seen. Major widespread coastal flooding is expected. Numerous homes and roadways will be flooded from Revere and Winthrop southward thru Hull, including major flooding within the Boston Seaport District. Impacts will occur during several hours before and after high tide. People living in vulnerable coastal areas must take action to protect life and property.
14.5 Significant flooding of low lying coastal locations is expected from Revere and Winthrop southward through Hull. This includes significant flooding within the Seaport District of Boston. Numerous homes will be flooded. Road closures and evacuations of coastal sections are likely. Large swells and wave action will produce significant beach erosion.
14 Flooding of low lying coastal locations is expected from Revere and Winthrop southward through Hull. Road closures and some evacuations of coastal sections may be required. Large swells and wave action will produce minor to moderate beach erosion.
13.5 Minor flooding of low lying coastal locations is expected from Revere and Winthrop southward through Hull. The combination of high tides and large swells will result in washover onto coastal roadways and some road closures may occur around the time of high tide.
12.5 Minor coastal flooding occurs along Morrissey Boulevard in Boston.
Photos
(1) Boston Harbor Tidal Station
About This Location Collapse

Latitude: 42.353900° N, Longitude: 71.050300° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12.5 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 -5.51 6.99 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 -5.21 7.29 Older USGS topographic maps, MSL benchmarks
Other Not Available 12.5 MLLW (Mean Lower Low Water)
Additional Information Collapse
**Coastal flooding can occur at a stage of 12 feet, when onshore winds are present along with 20 foot seas.** Boston Harbor gage data and forecasts are in feet Mean Lower Low Water (MLLW).
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Boston / Norton Weather Forecast Office
46 Commerce Way
Norton, MA 02766
(508) 622-3250
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