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Hydrograph River at a Glance Download
Great South Bay at West Sayville (IN MLLW) Tide Height (ft)Observed: 1.25 ft at 8:18AM May 11, 2024Observed: 1.24 ft at 8:24AM May 11, 2024Observed: 1.21 ft at 8:30AM May 11, 2024Observed: 1.22 ft at 8:36AM May 11, 2024Observed: 1.21 ft at 8:42AM May 11, 2024Observed: 1.21 ft at 8:48AM May 11, 2024Observed: 1.22 ft at 8:54AM May 11, 2024Observed: 1.2 ft at 9:00AM May 11, 2024Observed: 1.19 ft at 9:06AM May 11, 2024Observed: 1.24 ft at 9:12AM May 11, 2024Observed: 1.29 ft at 9:13AM May 11, 2024Observed: 1.24 ft at 9:18AM May 11, 2024Observed: 1.23 ft at 9:24AM May 11, 2024Observed: 1.26 ft at 9:30AM May 11, 2024Observed: 1.29 ft at 9:36AM May 11, 2024Observed: 1.29 ft at 9:42AM May 11, 2024Observed: 1.33 ft at 9:48AM May 11, 2024Observed: 1.34 ft at 9:54AM May 11, 2024Observed: 1.38 ft at 10:00AM May 11, 2024Observed: 1.39 ft at 10:06AM May 11, 2024Observed: 1.41 ft at 10:12AM May 11, 2024Observed: 1.43 ft at 10:18AM May 11, 2024Observed: 1.45 ft at 10:24AM May 11, 2024Observed: 1.48 ft at 10:30AM May 11, 2024Observed: 1.51 ft at 10:36AM May 11, 2024Observed: 1.55 ft at 10:42AM May 11, 2024Observed: 1.57 ft at 10:48AM May 11, 2024Observed: 1.6 ft at 10:54AM May 11, 2024Observed: 1.64 ft at 11:00AM May 11, 2024Observed: 1.66 ft at 11:06AM May 11, 2024Observed: 1.67 ft at 11:12AM May 11, 2024Observed: 1.71 ft at 11:18AM May 11, 2024Observed: 1.73 ft at 11:24AM May 11, 2024Observed: 1.74 ft at 11:30AM May 11, 2024Observed: 1.77 ft at 11:36AM May 11, 2024Observed: 1.81 ft at 11:42AM May 11, 2024Observed: 1.85 ft at 11:48AM May 11, 2024Observed: 1.88 ft at 11:54AM May 11, 2024Observed: 1.9 ft at 12:00PM May 11, 2024Observed: 1.92 ft at 12:06PM May 11, 2024Observed: 1.95 ft at 12:12PM May 11, 2024Observed: 1.97 ft at 12:18PM May 11, 2024Observed: 1.99 ft at 12:24PM May 11, 2024Observed: 2.01 ft at 12:30PM May 11, 2024Observed: 2.03 ft at 12:36PM May 11, 2024Observed: 2.04 ft at 12:42PM May 11, 2024Observed: 2.07 ft at 12:48PM May 11, 2024Observed: 2.09 ft at 12:54PM May 11, 2024Observed: 2.09 ft at 1:00PM May 11, 2024Observed: 2.13 ft at 1:06PM May 11, 2024Observed: 2.13 ft at 1:12PM May 11, 2024Observed: 2.15 ft at 1:18PM May 11, 2024Observed: 2.16 ft at 1:24PM May 11, 2024Observed: 2.17 ft at 1:30PM May 11, 2024Observed: 2.18 ft at 1:36PM May 11, 2024Observed: 2.19 ft at 1:42PM May 11, 2024Observed: 2.18 ft at 1:48PM May 11, 2024Observed: 2.19 ft at 1:54PM May 11, 2024Observed: 2.19 ft at 2:00PM May 11, 2024Observed: 2.18 ft at 2:06PM May 11, 2024Observed: 2.18 ft at 2:12PM May 11, 2024Observed: 2.2 ft at 2:18PM May 11, 2024Observed: 2.17 ft at 2:24PM May 11, 2024Observed: 2.16 ft at 2:30PM May 11, 2024Observed: 2.17 ft at 2:36PM May 11, 2024Observed: 2.14 ft at 2:42PM May 11, 2024Observed: 2.13 ft at 2:48PM May 11, 2024Observed: 2.12 ft at 2:54PM May 11, 2024Observed: 2.11 ft at 3:00PM May 11, 2024Observed: 2.08 ft at 3:06PM May 11, 2024Observed: 2.08 ft at 3:12PM May 11, 2024Observed: 2 ft at 3:13PM May 11, 2024Observed: 2.06 ft at 3:18PM May 11, 2024Observed: 2.04 ft at 3:24PM May 11, 2024Observed: 2.01 ft at 3:30PM May 11, 2024Observed: 2 ft at 3:36PM May 11, 2024Observed: 1.98 ft at 3:42PM May 11, 2024Observed: 1.96 ft at 3:48PM May 11, 2024Observed: 1.94 ft at 3:54PM May 11, 2024Observed: 1.91 ft at 4:00PM May 11, 2024Observed: 1.89 ft at 4:06PM May 11, 2024Observed: 1.88 ft at 4:12PM May 11, 2024Observed: 1.85 ft at 4:18PM May 11, 2024Observed: 1.82 ft at 4:24PM May 11, 2024Observed: 1.81 ft at 4:30PM May 11, 2024Observed: 1.79 ft at 4:36PM May 11, 2024Observed: 1.54 ft at 5:42PM May 11, 2024Observed: 1.52 ft at 5:48PM May 11, 2024Observed: 1.48 ft at 5:54PM May 11, 2024Observed: 1.47 ft at 6:00PM May 11, 2024Observed: 1.45 ft at 6:06PM May 11, 2024Observed: 1.44 ft at 6:12PM May 11, 2024Observed: 1.42 ft at 6:18PM May 11, 2024Observed: 1.4 ft at 6:24PM May 11, 2024Observed: 1.39 ft at 6:30PM May 11, 2024Observed: 1.37 ft at 6:36PM May 11, 2024Observed: 1.34 ft at 6:42PM May 11, 2024Observed: 1.32 ft at 6:48PM May 11, 2024Observed: 1.3 ft at 6:54PM May 11, 2024Observed: 1.29 ft at 7:00PM May 11, 2024Observed: 1.27 ft at 7:06PM May 11, 2024Observed: 1.26 ft at 7:12PM May 11, 2024Observed: 1.25 ft at 7:18PM May 11, 2024Observed: 1.23 ft at 7:24PM May 11, 2024Observed: 1.22 ft at 7:30PM May 11, 2024Observed: 1.21 ft at 7:36PM May 11, 2024Observed: 1.21 ft at 7:42PM May 11, 2024Observed: 1.21 ft at 7:48PM May 11, 2024Observed: 1.21 ft at 7:54PM May 11, 2024Observed: 1.21 ft at 8:00PM May 11, 2024Observed: 1.2 ft at 8:06PM May 11, 2024Observed: 1.21 ft at 8:12PM May 11, 2024Observed: 1.22 ft at 8:18PM May 11, 2024Observed: 1.23 ft at 8:24PM May 11, 2024Observed: 1.24 ft at 8:30PM May 11, 2024Observed: 1.26 ft at 8:36PM May 11, 2024Observed: 1.27 ft at 8:42PM May 11, 2024Observed: 1.28 ft at 8:48PM May 11, 2024Observed: 1.32 ft at 8:54PM May 11, 2024Observed: 1.34 ft at 9:00PM May 11, 2024Observed: 1.36 ft at 9:06PM May 11, 2024Observed: 1.38 ft at 9:12PM May 11, 2024Observed: 1.46 ft at 9:13PM May 11, 2024Observed: 1.4 ft at 9:18PM May 11, 2024Observed: 1.42 ft at 9:24PM May 11, 2024Observed: 1.44 ft at 9:30PM May 11, 2024Observed: 1.46 ft at 9:36PM May 11, 2024Observed: 1.48 ft at 9:42PM May 11, 2024Observed: 1.51 ft at 9:48PM May 11, 2024Observed: 1.53 ft at 9:54PM May 11, 2024Observed: 1.55 ft at 10:00PM May 11, 2024Observed: 1.58 ft at 10:06PM May 11, 2024Observed: 1.61 ft at 10:12PM May 11, 2024Observed: 1.63 ft at 10:18PM May 11, 2024Observed: 1.66 ft at 10:24PM May 11, 2024Observed: 1.69 ft at 10:30PM May 11, 2024Observed: 1.71 ft at 10:36PM May 11, 2024Observed: 1.74 ft at 10:42PM May 11, 2024Observed: 1.79 ft at 10:48PM May 11, 2024Observed: 1.82 ft at 10:54PM May 11, 2024Observed: 1.85 ft at 11:00PM May 11, 2024Observed: 1.89 ft at 11:06PM May 11, 2024Observed: 1.92 ft at 11:12PM May 11, 2024Observed: 1.95 ft at 11:18PM May 11, 2024Observed: 1.98 ft at 11:24PM May 11, 2024Observed: 2.01 ft at 11:30PM May 11, 2024Observed: 2.04 ft at 11:36PM May 11, 2024Observed: 2.07 ft at 11:42PM May 11, 2024Observed: 2.1 ft at 11:48PM May 11, 2024Observed: 2.13 ft at 11:54PM May 11, 2024Observed: 2.16 ft at 12:00AM May 12, 2024Observed: 2.19 ft at 12:06AM May 12, 2024Observed: 2.22 ft at 12:12AM May 12, 2024Observed: 2.25 ft at 12:18AM May 12, 2024Observed: 2.28 ft at 12:24AM May 12, 2024Observed: 2.31 ft at 12:30AM May 12, 2024Observed: 2.33 ft at 12:36AM May 12, 2024Observed: 2.36 ft at 12:42AM May 12, 2024Observed: 2.38 ft at 12:48AM May 12, 2024Observed: 2.41 ft at 12:54AM May 12, 2024Observed: 2.45 ft at 1:00AM May 12, 2024Observed: 2.46 ft at 1:06AM May 12, 2024Observed: 2.48 ft at 1:12AM May 12, 2024Observed: 2.49 ft at 1:18AM May 12, 2024Observed: 2.52 ft at 1:24AM May 12, 2024Observed: 2.54 ft at 1:30AM May 12, 2024Observed: 2.55 ft at 1:36AM May 12, 2024Observed: 2.58 ft at 1:42AM May 12, 2024Observed: 2.59 ft at 1:48AM May 12, 2024Observed: 2.6 ft at 1:54AM May 12, 2024Observed: 2.61 ft at 2:00AM May 12, 2024Observed: 2.64 ft at 2:06AM May 12, 2024Observed: 2.64 ft at 2:12AM May 12, 2024Observed: 2.65 ft at 2:18AM May 12, 2024Observed: 2.65 ft at 2:24AM May 12, 2024Observed: 2.65 ft at 2:30AM May 12, 2024Highest Observation: 2.66 ft at 2:36AM May 12, 2024Observed: 2.65 ft at 2:42AM May 12, 2024Observed: 2.63 ft at 2:48AM May 12, 2024Observed: 2.63 ft at 2:54AM May 12, 2024Observed: 2.61 ft at 3:00AM May 12, 2024Observed: 2.6 ft at 3:06AM May 12, 2024Observed: 2.58 ft at 3:12AM May 12, 2024Observed: 2.52 ft at 3:14AM May 12, 2024Observed: 2.56 ft at 3:18AM May 12, 2024Observed: 2.5 ft at 3:20AM May 12, 2024Observed: 2.54 ft at 3:24AM May 12, 2024Observed: 2.52 ft at 3:30AM May 12, 2024Observed: 2.5 ft at 3:36AM May 12, 2024Observed: 2.48 ft at 3:42AM May 12, 2024Observed: 2.45 ft at 3:48AM May 12, 2024Observed: 2.43 ft at 3:54AM May 12, 2024Observed: 2.4 ft at 4:00AM May 12, 2024Observed: 2.39 ft at 4:06AM May 12, 2024Observed: 2.37 ft at 4:12AM May 12, 2024Observed: 2.34 ft at 4:18AM May 12, 2024Observed: 2.33 ft at 4:24AM May 12, 2024Observed: 2.3 ft at 4:30AM May 12, 2024Observed: 2.28 ft at 4:36AM May 12, 2024Observed: 2.26 ft at 4:42AM May 12, 2024Observed: 2.24 ft at 4:48AM May 12, 2024Observed: 2.21 ft at 4:54AM May 12, 2024Observed: 2.18 ft at 5:00AM May 12, 2024Observed: 2.16 ft at 5:06AM May 12, 2024Observed: 2.12 ft at 5:12AM May 12, 2024Observed: 2.1 ft at 5:18AM May 12, 2024Observed: 2.07 ft at 5:24AM May 12, 2024Observed: 2.06 ft at 5:30AM May 12, 2024Observed: 2.02 ft at 5:36AM May 12, 2024Observed: 1.99 ft at 5:42AM May 12, 2024Observed: 1.97 ft at 5:48AM May 12, 2024Observed: 1.94 ft at 5:54AM May 12, 2024Observed: 1.91 ft at 6:00AM May 12, 2024Observed: 1.89 ft at 6:06AM May 12, 2024Observed: 1.86 ft at 6:12AM May 12, 2024Observed: 1.84 ft at 6:18AM May 12, 2024Observed: 1.81 ft at 6:24AM May 12, 2024Observed: 1.79 ft at 6:30AM May 12, 2024Observed: 1.76 ft at 6:36AM May 12, 2024Observed: 1.74 ft at 6:42AM May 12, 2024Observed: 1.72 ft at 6:48AM May 12, 2024Observed: 1.7 ft at 6:54AM May 12, 2024Observed: 1.68 ft at 7:00AM May 12, 2024Observed: 1.66 ft at 7:06AM May 12, 2024Observed: 1.62 ft at 7:12AM May 12, 2024Observed: 1.6 ft at 7:18AM May 12, 2024Observed: 1.59 ft at 7:24AM May 12, 2024Observed: 1.56 ft at 7:30AM May 12, 2024Observed: 1.54 ft at 7:36AM May 12, 2024Observed: 1.53 ft at 7:42AM May 12, 2024Observed: 1.49 ft at 7:48AM May 12, 2024Observed: 1.47 ft at 7:54AM May 12, 2024Observed: 1.47 ft at 8:00AM May 12, 2024Observed: 1.45 ft at 8:06AM May 12, 2024Observed: 1.43 ft at 8:12AM May 12, 2024Observed: 1.42 ft at 8:18AM May 12, 2024Observed: 1.4 ft at 8:24AM May 12, 2024Observed: 1.38 ft at 8:30AM May 12, 2024Observed: 1.38 ft at 8:36AM May 12, 2024Observed: 1.36 ft at 8:42AM May 12, 2024Observed: 1.34 ft at 8:48AM May 12, 2024Observed: 1.34 ft at 8:54AM May 12, 2024Observed: 1.33 ft at 9:00AM May 12, 2024Observed: 1.32 ft at 9:06AM May 12, 2024Observed: 1.31 ft at 9:12AM May 12, 2024Observed: 1.28 ft at 9:13AM May 12, 2024Observed: 1.29 ft at 9:18AM May 12, 2024Observed: 1.27 ft at 9:19AM May 12, 2024Observed: 1.28 ft at 9:24AM May 12, 2024Observed: 1.28 ft at 9:30AM May 12, 2024Observed: 1.27 ft at 9:36AM May 12, 2024Observed: 1.26 ft at 9:42AM May 12, 2024Observed: 1.27 ft at 9:48AM May 12, 2024Observed: 1.28 ft at 9:54AM May 12, 2024Observed: 1.3 ft at 10:00AM May 12, 2024Observed: 1.31 ft at 10:06AM May 12, 2024Observed: 1.33 ft at 10:12AM May 12, 2024Observed: 1.34 ft at 10:18AM May 12, 2024Observed: 1.33 ft at 10:24AM May 12, 2024Observed: 1.35 ft at 10:30AM May 12, 2024Observed: 1.38 ft at 10:36AM May 12, 2024Observed: 1.39 ft at 10:42AM May 12, 2024Observed: 1.42 ft at 10:48AM May 12, 2024Observed: 1.45 ft at 10:54AM May 12, 2024Observed: 1.47 ft at 11:00AM May 12, 2024Observed: 1.47 ft at 11:06AM May 12, 2024Observed: 1.52 ft at 11:12AM May 12, 2024Observed: 1.54 ft at 11:18AM May 12, 2024Observed: 1.55 ft at 11:24AM May 12, 2024Observed: 1.59 ft at 11:30AM May 12, 2024Observed: 1.6 ft at 11:36AM May 12, 2024Observed: 1.61 ft at 11:42AM May 12, 2024Observed: 1.64 ft at 11:48AM May 12, 2024Observed: 1.67 ft at 11:54AM May 12, 2024Observed: 1.68 ft at 12:00PM May 12, 2024Observed: 1.71 ft at 12:06PM May 12, 2024Observed: 1.73 ft at 12:12PM May 12, 2024Observed: 1.76 ft at 12:18PM May 12, 2024Observed: 1.79 ft at 12:24PM May 12, 2024Observed: 1.81 ft at 12:30PM May 12, 2024Observed: 1.83 ft at 12:36PM May 12, 2024Observed: 1.85 ft at 12:42PM May 12, 2024Observed: 1.89 ft at 12:48PM May 12, 2024Observed: 1.91 ft at 12:54PM May 12, 2024Observed: 1.93 ft at 1:00PM May 12, 2024Observed: 1.95 ft at 1:06PM May 12, 2024Observed: 1.96 ft at 1:12PM May 12, 2024Observed: 1.97 ft at 1:18PM May 12, 2024Observed: 2.01 ft at 1:24PM May 12, 2024Observed: 2.04 ft at 1:30PM May 12, 2024Observed: 2.04 ft at 1:36PM May 12, 2024Observed: 2.05 ft at 1:42PM May 12, 2024Observed: 2.07 ft at 1:48PM May 12, 2024Observed: 2.08 ft at 1:54PM May 12, 2024Observed: 2.1 ft at 2:00PM May 12, 2024Observed: 2.12 ft at 2:06PM May 12, 2024Observed: 2.13 ft at 2:12PM May 12, 2024Observed: 2.15 ft at 2:18PM May 12, 2024Observed: 2.15 ft at 2:24PM May 12, 2024Observed: 2.15 ft at 2:30PM May 12, 2024Observed: 2.15 ft at 2:36PM May 12, 2024Observed: 2.15 ft at 2:42PM May 12, 2024Observed: 2.14 ft at 2:48PM May 12, 2024Observed: 2.15 ft at 2:54PM May 12, 2024Observed: 2.17 ft at 3:00PM May 12, 2024Observed: 2.16 ft at 3:06PM May 12, 2024Observed: 2.14 ft at 3:12PM May 12, 2024Observed: 2.09 ft at 3:13PM May 12, 2024Observed: 2.15 ft at 3:18PM May 12, 2024Observed: 2.08 ft at 3:19PM May 12, 2024Observed: 2.12 ft at 3:24PM May 12, 2024Observed: 2.09 ft at 3:30PM May 12, 2024Observed: 2.08 ft at 3:36PM May 12, 2024Observed: 2.06 ft at 3:42PM May 12, 2024Observed: 2.06 ft at 3:48PM May 12, 2024Observed: 2.03 ft at 3:54PM May 12, 2024Observed: 2.01 ft at 4:00PM May 12, 2024Observed: 2 ft at 4:06PM May 12, 2024Observed: 1.98 ft at 4:12PM May 12, 2024Observed: 1.95 ft at 4:18PM May 12, 2024Observed: 1.94 ft at 4:24PM May 12, 2024Observed: 1.93 ft at 4:30PM May 12, 2024Observed: 1.91 ft at 4:36PM May 12, 2024Observed: 1.88 ft at 4:42PM May 12, 2024Observed: 1.86 ft at 4:48PM May 12, 2024Observed: 1.84 ft at 4:54PM May 12, 2024Observed: 1.82 ft at 5:00PM May 12, 2024Observed: 1.8 ft at 5:06PM May 12, 2024Observed: 1.77 ft at 5:12PM May 12, 2024Observed: 1.76 ft at 5:18PM May 12, 2024Observed: 1.71 ft at 5:24PM May 12, 2024Observed: 1.71 ft at 5:30PM May 12, 2024Observed: 1.69 ft at 5:36PM May 12, 2024Observed: 1.67 ft at 5:42PM May 12, 2024Observed: 1.64 ft at 5:48PM May 12, 2024Observed: 1.61 ft at 5:54PM May 12, 2024Observed: 1.6 ft at 6:00PM May 12, 2024Observed: 1.58 ft at 6:06PM May 12, 2024Observed: 1.56 ft at 6:12PM May 12, 2024Observed: 1.53 ft at 6:18PM May 12, 2024Observed: 1.51 ft at 6:24PM May 12, 2024Observed: 1.49 ft at 6:30PM May 12, 2024Observed: 1.47 ft at 6:36PM May 12, 2024Observed: 1.46 ft at 6:42PM May 12, 2024Observed: 1.43 ft at 6:48PM May 12, 2024Observed: 1.42 ft at 6:54PM May 12, 2024Observed: 1.39 ft at 7:00PM May 12, 2024Observed: 1.37 ft at 7:06PM May 12, 2024Observed: 1.36 ft at 7:12PM May 12, 2024Observed: 1.33 ft at 7:18PM May 12, 2024Observed: 1.32 ft at 7:24PM May 12, 2024Observed: 1.31 ft at 7:30PM May 12, 2024Observed: 1.3 ft at 7:36PM May 12, 2024Observed: 1.29 ft at 7:42PM May 12, 2024Observed: 1.27 ft at 7:48PM May 12, 2024Observed: 1.26 ft at 7:54PM May 12, 2024Observed: 1.23 ft at 8:00PM May 12, 2024Observed: 1.22 ft at 8:06PM May 12, 2024Observed: 1.21 ft at 8:12PM May 12, 2024Observed: 1.21 ft at 8:18PM May 12, 2024Observed: 1.19 ft at 8:24PM May 12, 2024Observed: 1.19 ft at 8:30PM May 12, 2024Observed: 1.18 ft at 8:36PM May 12, 2024Observed: 1.18 ft at 8:42PM May 12, 2024Observed: 1.18 ft at 8:48PM May 12, 2024Observed: 1.18 ft at 8:54PM May 12, 2024Observed: 1.18 ft at 9:00PM May 12, 2024Observed: 1.17 ft at 9:06PM May 12, 2024Observed: 1.17 ft at 9:12PM May 12, 2024Observed: 1.21 ft at 9:13PM May 12, 2024Observed: 1.18 ft at 9:18PM May 12, 2024Observed: 1.24 ft at 9:19PM May 12, 2024Observed: 1.2 ft at 9:24PM May 12, 2024Observed: 1.21 ft at 9:30PM May 12, 2024Observed: 1.24 ft at 9:36PM May 12, 2024Observed: 1.24 ft at 9:42PM May 12, 2024Observed: 1.25 ft at 9:48PM May 12, 2024Observed: 1.26 ft at 9:54PM May 12, 2024Observed: 1.28 ft at 10:00PM May 12, 2024Observed: 1.3 ft at 10:06PM May 12, 2024Observed: 1.31 ft at 10:12PM May 12, 2024Observed: 1.33 ft at 10:18PM May 12, 2024Observed: 1.35 ft at 10:24PM May 12, 2024Observed: 1.36 ft at 10:30PM May 12, 2024Observed: 1.38 ft at 10:36PM May 12, 2024Observed: 1.4 ft at 10:42PM May 12, 2024Observed: 1.43 ft at 10:48PM May 12, 2024Observed: 1.46 ft at 10:54PM May 12, 2024Observed: 1.49 ft at 11:00PM May 12, 2024Observed: 1.52 ft at 11:06PM May 12, 2024Observed: 1.55 ft at 11:12PM May 12, 2024Observed: 1.57 ft at 11:18PM May 12, 2024Observed: 1.6 ft at 11:24PM May 12, 2024Observed: 1.63 ft at 11:30PM May 12, 2024Observed: 1.66 ft at 11:36PM May 12, 2024Observed: 1.68 ft at 11:42PM May 12, 2024Observed: 1.7 ft at 11:48PM May 12, 2024Observed: 1.73 ft at 11:54PM May 12, 2024Observed: 1.76 ft at 12:00AM May 13, 2024Observed: 1.78 ft at 12:06AM May 13, 2024Observed: 1.8 ft at 12:12AM May 13, 2024Observed: 1.83 ft at 12:18AM May 13, 2024Observed: 1.86 ft at 12:24AM May 13, 2024Observed: 1.88 ft at 12:30AM May 13, 2024Observed: 1.9 ft at 12:36AM May 13, 2024Observed: 1.93 ft at 12:42AM May 13, 2024Observed: 1.96 ft at 12:48AM May 13, 2024Observed: 1.98 ft at 12:54AM May 13, 2024Observed: 2 ft at 1:00AM May 13, 2024Observed: 2.03 ft at 1:06AM May 13, 2024Observed: 2.05 ft at 1:12AM May 13, 2024Observed: 2.07 ft at 1:18AM May 13, 2024Observed: 2.09 ft at 1:24AM May 13, 2024Observed: 2.12 ft at 1:30AM May 13, 2024Observed: 2.14 ft at 1:36AM May 13, 2024Observed: 2.16 ft at 1:42AM May 13, 2024Observed: 2.19 ft at 1:48AM May 13, 2024Observed: 2.22 ft at 1:54AM May 13, 2024Observed: 2.24 ft at 2:00AM May 13, 2024Observed: 2.27 ft at 2:06AM May 13, 2024Observed: 2.29 ft at 2:12AM May 13, 2024Observed: 2.31 ft at 2:18AM May 13, 2024Observed: 2.32 ft at 2:24AM May 13, 2024Observed: 2.32 ft at 2:30AM May 13, 2024Observed: 2.33 ft at 2:36AM May 13, 2024Observed: 2.35 ft at 2:42AM May 13, 2024Observed: 2.37 ft at 2:48AM May 13, 2024Observed: 2.37 ft at 2:54AM May 13, 2024Observed: 2.37 ft at 3:00AM May 13, 2024Observed: 2.37 ft at 3:06AM May 13, 2024Observed: 2.39 ft at 3:12AM May 13, 2024Observed: 2.37 ft at 3:13AM May 13, 2024Observed: 2.38 ft at 3:18AM May 13, 2024Observed: 2.35 ft at 3:19AM May 13, 2024Observed: 2.37 ft at 3:24AM May 13, 2024Observed: 2.37 ft at 3:30AM May 13, 2024Observed: 2.35 ft at 3:36AM May 13, 2024Observed: 2.32 ft at 3:42AM May 13, 2024Observed: 2.31 ft at 3:48AM May 13, 2024Observed: 2.3 ft at 3:54AM May 13, 2024Observed: 2.28 ft at 4:00AM May 13, 2024Observed: 2.26 ft at 4:06AM May 13, 2024Observed: 2.25 ft at 4:12AM May 13, 2024Observed: 2.24 ft at 4:18AM May 13, 2024Observed: 2.21 ft at 4:24AM May 13, 2024Observed: 2.19 ft at 4:30AM May 13, 2024Observed: 2.18 ft at 4:36AM May 13, 2024Observed: 2.16 ft at 4:42AM May 13, 2024Observed: 2.15 ft at 4:48AM May 13, 2024Observed: 2.13 ft at 4:54AM May 13, 2024Observed: 2.11 ft at 5:00AM May 13, 2024Observed: 2.09 ft at 5:06AM May 13, 2024Observed: 2.06 ft at 5:12AM May 13, 2024Observed: 2.03 ft at 5:18AM May 13, 2024Observed: 2.02 ft at 5:24AM May 13, 2024Observed: 2 ft at 5:30AM May 13, 2024Observed: 1.96 ft at 5:36AM May 13, 2024Observed: 1.94 ft at 5:42AM May 13, 2024Observed: 1.92 ft at 5:48AM May 13, 2024Observed: 1.89 ft at 5:54AM May 13, 2024Observed: 1.86 ft at 6:00AM May 13, 2024Observed: 1.84 ft at 6:06AM May 13, 2024Observed: 1.81 ft at 6:12AM May 13, 2024Observed: 1.78 ft at 6:18AM May 13, 2024Observed: 1.76 ft at 6:24AM May 13, 2024Observed: 1.74 ft at 6:30AM May 13, 2024Observed: 1.71 ft at 6:36AM May 13, 2024Observed: 1.69 ft at 6:42AM May 13, 2024Observed: 1.67 ft at 6:48AM May 13, 2024Observed: 1.64 ft at 6:54AM May 13, 2024Observed: 1.62 ft at 7:00AM May 13, 2024Observed: 1.6 ft at 7:06AM May 13, 2024Observed: 1.57 ft at 7:12AM May 13, 2024Observed: 1.56 ft at 7:18AM May 13, 2024Observed: 1.53 ft at 7:24AM May 13, 2024Observed: 1.5 ft at 7:30AM May 13, 2024Observed: 1.48 ft at 7:36AM May 13, 2024USGS--Water Resources of the United StatesSAYN6(plotting HMIRG) Graph Created (8:16AM May 13, 2024)ObservedLatest observed value: 1.48 ft at 7:36 AM EDT 13-May-2024. Flood Stage is 3.1 ft
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Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Graphical forecasts are not available for the Great South Bay at West Sayville (IN MLLW). During times of high water, forecast crest information can be found in the text products.

Vertical Datum references a tidal datum (MLLW). For more information click on USGS link below.

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Flood Categories (in feet)
Major Flood Stage: 4.1
Moderate Flood Stage: 3.6
Flood Stage: 3.1
Action Stage: 0
Low Stage (in feet): -1.8

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
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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.
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If you notice any errors in the below information, please contact our Webmaster
13.1 Inundation of one to three feet of water on the runways at LaGuardia Airport.
12.7 Inundation of one to two feet on taxiways at LaGuardia Airport and in Douglaston Park.
10.8 Inundation occurs on the FDR Drive in Manhattan. Elevated water levels on the East River force the water into catch basins and storm sewers and cause water to bubble and pour out of manholes on the northbound FDR Drive leading to road closures in the upper 80's and lower 90's. In Rye, inundation causes portions of Milton Road and Kirby Lane at the Tide Mill Basin to close.
10.2 Minor coastal flooding in Port Washington along Shore Road, Sector Drive, and Sunset Park on Main Street.
10 Milton Road and Kirby Lane in Rye close during high tide.
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Latitude: 40.720833° N, Longitude: 73.091111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 3.1 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 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
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Upton Weather Forecast Office
175 Brookhaven Ave. Bldg. NWS-1
Upton, NY 11973
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