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Hydrograph River at a Glance Download
Big Sioux River at Flandreau Stage (ft)Flow (cfs)Observed: 7.03 ft at 7:00PM May 12, 2022Observed: 7.07 ft at 7:15PM May 12, 2022Observed: 7.1 ft at 7:30PM May 12, 2022Observed: 7.14 ft at 7:45PM May 12, 2022Observed: 7.17 ft at 8:00PM May 12, 2022Observed: 7.22 ft at 8:15PM May 12, 2022Observed: 7.26 ft at 8:30PM May 12, 2022Observed: 7.3 ft at 8:45PM May 12, 2022Observed: 7.34 ft at 9:00PM May 12, 2022Observed: 7.38 ft at 9:15PM May 12, 2022Observed: 7.42 ft at 9:30PM May 12, 2022Observed: 7.42 ft at 9:31PM May 12, 2022Observed: 7.45 ft at 9:45PM May 12, 2022Observed: 7.45 ft at 9:46PM May 12, 2022Observed: 7.48 ft at 10:00PM May 12, 2022Observed: 7.48 ft at 10:01PM May 12, 2022Observed: 7.51 ft at 10:15PM May 12, 2022Observed: 7.55 ft at 10:30PM May 12, 2022Observed: 7.56 ft at 10:45PM May 12, 2022Observed: 7.6 ft at 11:00PM May 12, 2022Observed: 7.61 ft at 11:15PM May 12, 2022Observed: 7.63 ft at 11:30PM May 12, 2022Observed: 7.66 ft at 11:45PM May 12, 2022Observed: 7.68 ft at 12:00AM May 13, 2022Observed: 7.71 ft at 12:15AM May 13, 2022Observed: 7.72 ft at 12:30AM May 13, 2022Observed: 7.74 ft at 12:45AM May 13, 2022Observed: 7.76 ft at 1:00AM May 13, 2022Observed: 7.77 ft at 1:15AM May 13, 2022Observed: 7.77 ft at 1:30AM May 13, 2022Observed: 7.78 ft at 1:45AM May 13, 2022Observed: 7.8 ft at 2:00AM May 13, 2022Observed: 7.82 ft at 2:15AM May 13, 2022Observed: 7.82 ft at 2:30AM May 13, 2022Observed: 7.82 ft at 2:45AM May 13, 2022Observed: 7.84 ft at 3:00AM May 13, 2022Observed: 7.83 ft at 3:15AM May 13, 2022Observed: 7.83 ft at 3:30AM May 13, 2022Observed: 7.84 ft at 3:45AM May 13, 2022Highest Observation: 7.85 ft at 4:00AM May 13, 2022Highest Observation: 7.85 ft at 4:15AM May 13, 2022Observed: 7.84 ft at 4:30AM May 13, 2022Observed: 7.83 ft at 4:45AM May 13, 2022Observed: 7.83 ft at 5:00AM May 13, 2022Observed: 7.83 ft at 5:15AM May 13, 2022Observed: 7.82 ft at 5:30AM May 13, 2022Observed: 7.82 ft at 5:31AM May 13, 2022Observed: 7.81 ft at 5:45AM May 13, 2022Observed: 7.81 ft at 5:46AM May 13, 2022Observed: 7.8 ft at 6:00AM May 13, 2022Observed: 7.8 ft at 6:01AM May 13, 2022Observed: 7.8 ft at 6:15AM May 13, 2022Observed: 7.78 ft at 6:30AM May 13, 2022Observed: 7.78 ft at 6:45AM May 13, 2022Observed: 7.78 ft at 7:00AM May 13, 2022Observed: 7.76 ft at 7:15AM May 13, 2022Observed: 7.76 ft at 7:30AM May 13, 2022Observed: 7.75 ft at 7:45AM May 13, 2022Observed: 7.73 ft at 8:00AM May 13, 2022Observed: 7.74 ft at 8:15AM May 13, 2022Observed: 7.71 ft at 8:30AM May 13, 2022Observed: 7.71 ft at 8:45AM May 13, 2022Observed: 7.68 ft at 9:00AM May 13, 2022Observed: 7.67 ft at 9:15AM May 13, 2022Observed: 7.67 ft at 9:30AM May 13, 2022Observed: 7.65 ft at 9:45AM May 13, 2022Observed: 7.64 ft at 10:00AM May 13, 2022Observed: 7.63 ft at 10:15AM May 13, 2022Observed: 7.61 ft at 10:30AM May 13, 2022Observed: 7.6 ft at 10:45AM May 13, 2022Observed: 7.59 ft at 11:00AM May 13, 2022Observed: 7.55 ft at 11:15AM May 13, 2022Observed: 7.55 ft at 11:30AM May 13, 2022Observed: 7.52 ft at 11:45AM May 13, 2022Observed: 7.52 ft at 12:00PM May 13, 2022Observed: 7.5 ft at 12:15PM May 13, 2022Observed: 7.47 ft at 12:30PM May 13, 2022Observed: 7.47 ft at 12:45PM May 13, 2022Observed: 7.45 ft at 1:00PM May 13, 2022Observed: 7.42 ft at 1:15PM May 13, 2022Observed: 7.41 ft at 1:30PM May 13, 2022Observed: 7.41 ft at 1:31PM May 13, 2022Observed: 7.39 ft at 1:45PM May 13, 2022Observed: 7.39 ft at 1:46PM May 13, 2022Observed: 7.37 ft at 2:00PM May 13, 2022Observed: 7.37 ft at 2:01PM May 13, 2022Observed: 7.36 ft at 2:15PM May 13, 2022Observed: 7.34 ft at 2:30PM May 13, 2022Observed: 7.33 ft at 2:45PM May 13, 2022Observed: 7.32 ft at 3:00PM May 13, 2022Observed: 7.3 ft at 3:15PM May 13, 2022Observed: 7.28 ft at 3:30PM May 13, 2022Observed: 7.27 ft at 3:45PM May 13, 2022Observed: 7.25 ft at 4:00PM May 13, 2022Observed: 7.23 ft at 4:15PM May 13, 2022Observed: 7.23 ft at 4:30PM May 13, 2022Observed: 7.2 ft at 4:45PM May 13, 2022Observed: 7.19 ft at 5:00PM May 13, 2022Observed: 7.18 ft at 5:15PM May 13, 2022Observed: 7.15 ft at 5:30PM May 13, 2022Observed: 7.15 ft at 5:45PM May 13, 2022Observed: 7.12 ft at 6:00PM May 13, 2022Observed: 7.11 ft at 6:15PM May 13, 2022Observed: 7.09 ft at 6:30PM May 13, 2022Observed: 7.08 ft at 6:45PM May 13, 2022Observed: 7.05 ft at 7:00PM May 13, 2022Observed: 7.05 ft at 7:15PM May 13, 2022Observed: 7.05 ft at 7:30PM May 13, 2022Observed: 7.02 ft at 7:45PM May 13, 2022Observed: 7.02 ft at 8:00PM May 13, 2022Observed: 7 ft at 8:15PM May 13, 2022Observed: 6.98 ft at 8:30PM May 13, 2022Observed: 6.97 ft at 8:45PM May 13, 2022Observed: 6.95 ft at 9:00PM May 13, 2022Observed: 6.93 ft at 9:15PM May 13, 2022Observed: 6.94 ft at 9:30PM May 13, 2022Observed: 6.92 ft at 9:45PM May 13, 2022Observed: 6.91 ft at 10:00PM May 13, 2022Observed: 6.88 ft at 10:15PM May 13, 2022Observed: 6.87 ft at 10:30PM May 13, 2022Observed: 6.86 ft at 10:45PM May 13, 2022Observed: 6.84 ft at 11:00PM May 13, 2022Observed: 6.83 ft at 11:15PM May 13, 2022Observed: 6.81 ft at 11:30PM May 13, 2022Observed: 6.81 ft at 11:45PM May 13, 2022Observed: 6.79 ft at 12:00AM May 14, 2022Observed: 6.78 ft at 12:15AM May 14, 2022Observed: 6.76 ft at 12:30AM May 14, 2022Observed: 6.74 ft at 12:45AM May 14, 2022Observed: 6.73 ft at 1:00AM May 14, 2022Observed: 6.73 ft at 1:15AM May 14, 2022Observed: 6.72 ft at 1:30AM May 14, 2022Observed: 6.71 ft at 1:45AM May 14, 2022Observed: 6.7 ft at 2:00AM May 14, 2022Observed: 6.69 ft at 2:15AM May 14, 2022Observed: 6.7 ft at 2:30AM May 14, 2022Observed: 6.67 ft at 2:45AM May 14, 2022Observed: 6.66 ft at 3:00AM May 14, 2022Observed: 6.65 ft at 3:15AM May 14, 2022Observed: 6.64 ft at 3:30AM May 14, 2022Observed: 6.63 ft at 3:45AM May 14, 2022Observed: 6.62 ft at 4:00AM May 14, 2022Observed: 6.6 ft at 4:15AM May 14, 2022Observed: 6.61 ft at 4:30AM May 14, 2022Observed: 6.58 ft at 4:45AM May 14, 2022Observed: 6.58 ft at 5:00AM May 14, 2022Observed: 6.57 ft at 5:15AM May 14, 2022Observed: 6.56 ft at 5:30AM May 14, 2022Observed: 6.56 ft at 5:31AM May 14, 2022Observed: 6.56 ft at 5:45AM May 14, 2022Observed: 6.56 ft at 5:46AM May 14, 2022Observed: 6.54 ft at 6:00AM May 14, 2022Observed: 6.54 ft at 6:01AM May 14, 2022Observed: 6.53 ft at 6:15AM May 14, 2022Observed: 6.51 ft at 6:30AM May 14, 2022Observed: 6.5 ft at 6:45AM May 14, 2022Observed: 6.51 ft at 7:00AM May 14, 2022Observed: 6.48 ft at 7:15AM May 14, 2022Observed: 6.48 ft at 7:30AM May 14, 2022Observed: 6.47 ft at 7:45AM May 14, 2022Observed: 6.46 ft at 8:00AM May 14, 2022Observed: 6.45 ft at 8:15AM May 14, 2022Observed: 6.43 ft at 8:30AM May 14, 2022Observed: 6.43 ft at 8:45AM May 14, 2022Observed: 6.42 ft at 9:00AM May 14, 2022Observed: 6.41 ft at 9:15AM May 14, 2022Observed: 6.39 ft at 9:30AM May 14, 2022Observed: 6.38 ft at 9:45AM May 14, 2022Observed: 6.37 ft at 10:00AM May 14, 2022Observed: 6.36 ft at 10:15AM May 14, 2022Observed: 6.36 ft at 10:30AM May 14, 2022Observed: 6.33 ft at 10:45AM May 14, 2022Observed: 6.32 ft at 11:00AM May 14, 2022Observed: 6.31 ft at 11:15AM May 14, 2022Observed: 6.31 ft at 11:30AM May 14, 2022Observed: 6.31 ft at 11:45AM May 14, 2022Observed: 6.29 ft at 12:00PM May 14, 2022Observed: 6.27 ft at 12:15PM May 14, 2022Observed: 6.26 ft at 12:30PM May 14, 2022Observed: 6.25 ft at 12:45PM May 14, 2022Observed: 6.24 ft at 1:00PM May 14, 2022Observed: 6.22 ft at 1:15PM May 14, 2022Observed: 6.2 ft at 1:30PM May 14, 2022Observed: 6.2 ft at 1:45PM May 14, 2022Observed: 6.2 ft at 1:46PM May 14, 2022Observed: 6.17 ft at 2:00PM May 14, 2022Observed: 6.17 ft at 2:01PM May 14, 2022Observed: 6.16 ft at 2:15PM May 14, 2022Observed: 6.16 ft at 2:16PM May 14, 2022Observed: 6.15 ft at 2:30PM May 14, 2022Observed: 6.14 ft at 2:45PM May 14, 2022Observed: 6.13 ft at 3:00PM May 14, 2022Observed: 6.11 ft at 3:15PM May 14, 2022Observed: 6.1 ft at 3:30PM May 14, 2022Observed: 6.09 ft at 3:45PM May 14, 2022Observed: 6.07 ft at 4:00PM May 14, 2022Observed: 6.06 ft at 4:15PM May 14, 2022Observed: 6.05 ft at 4:30PM May 14, 2022Observed: 6.01 ft at 4:45PM May 14, 2022Observed: 6.01 ft at 5:00PM May 14, 2022Observed: 5.99 ft at 5:15PM May 14, 2022Observed: 5.98 ft at 5:30PM May 14, 2022Observed: 5.98 ft at 5:45PM May 14, 2022Observed: 5.96 ft at 6:00PM May 14, 2022Observed: 5.94 ft at 6:15PM May 14, 2022Observed: 5.94 ft at 6:30PM May 14, 2022Observed: 5.92 ft at 6:45PM May 14, 2022Observed: 5.9 ft at 7:00PM May 14, 2022Observed: 5.9 ft at 7:15PM May 14, 2022Observed: 5.88 ft at 7:30PM May 14, 2022Observed: 5.87 ft at 7:45PM May 14, 2022Observed: 5.85 ft at 8:00PM May 14, 2022Observed: 5.85 ft at 8:15PM May 14, 2022Observed: 5.83 ft at 8:30PM May 14, 2022Observed: 5.81 ft at 8:45PM May 14, 2022Observed: 5.8 ft at 9:00PM May 14, 2022Observed: 5.77 ft at 9:15PM May 14, 2022Observed: 5.76 ft at 9:30PM May 14, 2022Observed: 5.76 ft at 9:45PM May 14, 2022Observed: 5.76 ft at 9:46PM May 14, 2022Observed: 5.74 ft at 10:00PM May 14, 2022Observed: 5.74 ft at 10:01PM May 14, 2022Observed: 5.73 ft at 10:15PM May 14, 2022Observed: 5.73 ft at 10:16PM May 14, 2022Observed: 5.72 ft at 10:30PM May 14, 2022Observed: 5.7 ft at 10:45PM May 14, 2022Observed: 5.68 ft at 11:00PM May 14, 2022Observed: 5.67 ft at 11:15PM May 14, 2022Observed: 5.66 ft at 11:30PM May 14, 2022Observed: 5.65 ft at 11:45PM May 14, 2022Observed: 5.64 ft at 12:00AM May 15, 2022Observed: 5.62 ft at 12:15AM May 15, 2022Observed: 5.61 ft at 12:30AM May 15, 2022Observed: 5.6 ft at 12:45AM May 15, 2022Observed: 5.59 ft at 1:00AM May 15, 2022Observed: 5.57 ft at 1:15AM May 15, 2022Observed: 5.57 ft at 1:30AM May 15, 2022Observed: 5.56 ft at 1:45AM May 15, 2022Observed: 5.55 ft at 2:00AM May 15, 2022Observed: 5.54 ft at 2:15AM May 15, 2022Observed: 5.52 ft at 2:30AM May 15, 2022Observed: 5.51 ft at 2:45AM May 15, 2022Observed: 5.5 ft at 3:00AM May 15, 2022Observed: 5.48 ft at 3:15AM May 15, 2022Observed: 5.48 ft at 3:30AM May 15, 2022Observed: 5.47 ft at 3:45AM May 15, 2022Observed: 5.46 ft at 4:00AM May 15, 2022Observed: 5.45 ft at 4:15AM May 15, 2022Observed: 5.44 ft at 4:30AM May 15, 2022Observed: 5.43 ft at 4:45AM May 15, 2022Observed: 5.43 ft at 5:00AM May 15, 2022Observed: 5.41 ft at 5:15AM May 15, 2022Observed: 5.4 ft at 5:30AM May 15, 2022Observed: 5.39 ft at 5:45AM May 15, 2022Observed: 5.39 ft at 6:00AM May 15, 2022Observed: 5.38 ft at 6:15AM May 15, 2022Observed: 5.38 ft at 6:30AM May 15, 2022Observed: 5.36 ft at 6:45AM May 15, 2022Observed: 5.36 ft at 7:00AM May 15, 2022Observed: 5.36 ft at 7:15AM May 15, 2022Observed: 5.34 ft at 7:30AM May 15, 2022Observed: 5.33 ft at 7:45AM May 15, 2022Observed: 5.32 ft at 8:00AM May 15, 2022Observed: 5.32 ft at 8:15AM May 15, 2022Observed: 5.31 ft at 8:30AM May 15, 2022Observed: 5.31 ft at 8:45AM May 15, 2022Observed: 5.31 ft at 9:00AM May 15, 2022Observed: 5.3 ft at 9:15AM May 15, 2022Observed: 5.29 ft at 9:30AM May 15, 2022Observed: 5.28 ft at 9:45AM May 15, 2022Observed: 5.28 ft at 10:00AM May 15, 2022Observed: 5.26 ft at 10:15AM May 15, 2022Observed: 5.27 ft at 10:30AM May 15, 2022Observed: 5.25 ft at 10:45AM May 15, 2022Observed: 5.25 ft at 11:00AM May 15, 2022Observed: 5.25 ft at 11:15AM May 15, 2022Observed: 5.25 ft at 11:30AM May 15, 2022Observed: 5.23 ft at 11:45AM May 15, 2022Observed: 5.23 ft at 12:00PM May 15, 2022Observed: 5.22 ft at 12:15PM May 15, 2022Observed: 5.21 ft at 12:30PM May 15, 2022Observed: 5.21 ft at 12:45PM May 15, 2022Observed: 5.21 ft at 1:00PM May 15, 2022Observed: 5.2 ft at 1:15PM May 15, 2022Observed: 5.19 ft at 1:30PM May 15, 2022Observed: 5.19 ft at 1:45PM May 15, 2022Observed: 5.18 ft at 2:00PM May 15, 2022Observed: 5.18 ft at 2:15PM May 15, 2022Observed: 5.18 ft at 2:30PM May 15, 2022Observed: 5.17 ft at 2:45PM May 15, 2022Observed: 5.16 ft at 3:00PM May 15, 2022Observed: 5.15 ft at 3:15PM May 15, 2022Observed: 5.15 ft at 3:30PM May 15, 2022Observed: 5.14 ft at 3:45PM May 15, 2022Observed: 5.15 ft at 4:00PM May 15, 2022Observed: 5.14 ft at 4:15PM May 15, 2022Observed: 5.13 ft at 4:30PM May 15, 2022Observed: 5.13 ft at 4:45PM May 15, 2022Observed: 5.13 ft at 5:00PM May 15, 2022Observed: 5.12 ft at 5:15PM May 15, 2022Observed: 5.11 ft at 5:30PM May 15, 2022Observed: 5.1 ft at 5:45PM May 15, 2022Observed: 5.09 ft at 6:00PM May 15, 2022Observed: 5.1 ft at 6:15PM May 15, 2022Observed: 5.09 ft at 6:30PM May 15, 2022Observed: 5.09 ft at 6:45PM May 15, 2022Observed: 5.09 ft at 7:00PM May 15, 2022Observed: 5.08 ft at 7:15PM May 15, 2022Observed: 5.07 ft at 7:30PM May 15, 2022Observed: 5.08 ft at 7:45PM May 15, 2022Observed: 5.07 ft at 8:00PM May 15, 2022Observed: 5.07 ft at 8:15PM May 15, 2022Observed: 5.07 ft at 8:30PM May 15, 2022Observed: 5.06 ft at 8:45PM May 15, 2022Observed: 5.06 ft at 9:00PM May 15, 2022Observed: 5.04 ft at 9:15PM May 15, 2022Observed: 5.05 ft at 9:30PM May 15, 2022Observed: 5.04 ft at 9:45PM May 15, 2022Observed: 5.04 ft at 9:46PM May 15, 2022Observed: 5.04 ft at 10:00PM May 15, 2022Observed: 5.04 ft at 10:01PM May 15, 2022Observed: 5.03 ft at 10:15PM May 15, 2022Observed: 5.03 ft at 10:16PM May 15, 2022Observed: 5.03 ft at 10:30PM May 15, 2022Observed: 5.03 ft at 10:45PM May 15, 2022Observed: 5.02 ft at 11:00PM May 15, 2022Observed: 5.02 ft at 11:15PM May 15, 2022Observed: 5.02 ft at 11:30PM May 15, 2022Observed: 5.01 ft at 11:45PM May 15, 2022Observed: 5.01 ft at 12:00AM May 16, 2022Observed: 5 ft at 12:15AM May 16, 2022Observed: 4.99 ft at 12:30AM May 16, 2022Observed: 4.99 ft at 12:45AM May 16, 2022Observed: 4.99 ft at 1:00AM May 16, 2022Observed: 4.98 ft at 1:15AM May 16, 2022Observed: 4.98 ft at 1:30AM May 16, 2022Observed: 4.97 ft at 1:45AM May 16, 2022Observed: 4.97 ft at 2:00AM May 16, 2022Observed: 4.97 ft at 2:15AM May 16, 2022Observed: 4.96 ft at 2:30AM May 16, 2022Observed: 4.96 ft at 2:45AM May 16, 2022Observed: 4.96 ft at 3:00AM May 16, 2022Observed: 4.95 ft at 3:15AM May 16, 2022Observed: 4.96 ft at 3:30AM May 16, 2022Observed: 4.95 ft at 3:45AM May 16, 2022Observed: 4.94 ft at 4:00AM May 16, 2022Observed: 4.93 ft at 4:15AM May 16, 2022Observed: 4.93 ft at 4:30AM May 16, 2022Observed: 4.93 ft at 4:45AM May 16, 2022Observed: 4.93 ft at 5:00AM May 16, 2022Observed: 4.92 ft at 5:15AM May 16, 2022Observed: 4.92 ft at 5:30AM May 16, 2022Observed: 4.92 ft at 5:45AM May 16, 2022Observed: 4.92 ft at 5:46AM May 16, 2022Observed: 4.91 ft at 6:00AM May 16, 2022Observed: 4.91 ft at 6:01AM May 16, 2022Observed: 4.91 ft at 6:15AM May 16, 2022Observed: 4.91 ft at 6:16AM May 16, 2022Observed: 4.91 ft at 6:30AM May 16, 2022Observed: 4.91 ft at 6:45AM May 16, 2022Observed: 4.9 ft at 7:00AM May 16, 2022Observed: 4.9 ft at 7:15AM May 16, 2022Observed: 4.9 ft at 7:30AM May 16, 2022Observed: 4.9 ft at 7:45AM May 16, 2022Observed: 4.9 ft at 8:00AM May 16, 2022Observed: 4.88 ft at 8:15AM May 16, 2022Observed: 4.89 ft at 8:30AM May 16, 2022Observed: 4.89 ft at 8:45AM May 16, 2022Observed: 4.86 ft at 10:00AM May 16, 2022Observed: 4.87 ft at 10:15AM May 16, 2022Observed: 4.86 ft at 10:30AM May 16, 2022Observed: 4.85 ft at 10:45AM May 16, 2022Observed: 4.85 ft at 11:00AM May 16, 2022Observed: 4.85 ft at 11:15AM May 16, 2022Observed: 4.86 ft at 11:30AM May 16, 2022Observed: 4.85 ft at 11:45AM May 16, 2022Observed: 4.84 ft at 12:00PM May 16, 2022Observed: 4.85 ft at 12:15PM May 16, 2022Observed: 4.84 ft at 12:30PM May 16, 2022Observed: 4.83 ft at 12:45PM May 16, 2022Observed: 4.83 ft at 1:00PM May 16, 2022Observed: 4.84 ft at 1:15PM May 16, 2022Observed: 4.83 ft at 1:30PM May 16, 2022Observed: 4.82 ft at 1:45PM May 16, 2022Observed: 4.82 ft at 1:46PM May 16, 2022Observed: 4.82 ft at 2:00PM May 16, 2022Observed: 4.82 ft at 2:01PM May 16, 2022Observed: 4.82 ft at 2:15PM May 16, 2022Observed: 4.82 ft at 2:16PM May 16, 2022Observed: 4.82 ft at 2:30PM May 16, 2022Observed: 4.81 ft at 2:45PM May 16, 2022Observed: 4.81 ft at 3:00PM May 16, 2022Observed: 4.82 ft at 3:15PM May 16, 2022Observed: 4.81 ft at 3:30PM May 16, 2022Observed: 4.81 ft at 3:45PM May 16, 2022Observed: 4.81 ft at 4:00PM May 16, 2022Observed: 4.8 ft at 4:15PM May 16, 2022Observed: 4.8 ft at 4:30PM May 16, 2022Observed: 4.8 ft at 4:45PM May 16, 2022Observed: 4.79 ft at 5:00PM May 16, 2022Observed: 4.79 ft at 5:15PM May 16, 2022Observed: 4.79 ft at 5:30PM May 16, 2022Observed: 4.79 ft at 5:45PM May 16, 2022Observed: 4.79 ft at 6:00PM May 16, 2022Observed: 4.78 ft at 6:15PM May 16, 2022Observed: 4.77 ft at 6:30PM May 16, 2022Observed: 4.78 ft at 6:45PM May 16, 2022Observed: 4.77 ft at 7:00PM May 16, 2022Observed: 4.78 ft at 7:15PM May 16, 2022Observed: 4.77 ft at 7:30PM May 16, 2022Observed: 4.76 ft at 7:45PM May 16, 2022Observed: 4.76 ft at 8:00PM May 16, 2022Observed: 4.76 ft at 8:15PM May 16, 2022Observed: 4.75 ft at 8:30PM May 16, 2022Observed: 4.75 ft at 8:45PM May 16, 2022Observed: 4.74 ft at 9:00PM May 16, 2022Observed: 4.74 ft at 9:15PM May 16, 2022Observed: 4.74 ft at 9:30PM May 16, 2022Observed: 4.75 ft at 9:45PM May 16, 2022Observed: 4.73 ft at 10:00PM May 16, 2022Observed: 4.73 ft at 10:15PM May 16, 2022Observed: 4.73 ft at 10:30PM May 16, 2022Observed: 4.73 ft at 10:45PM May 16, 2022Observed: 4.73 ft at 11:00PM May 16, 2022Observed: 4.73 ft at 11:15PM May 16, 2022Observed: 4.72 ft at 11:30PM May 16, 2022Observed: 4.73 ft at 11:45PM May 16, 2022Observed: 4.71 ft at 12:00AM May 17, 2022Observed: 4.72 ft at 12:15AM May 17, 2022Observed: 4.72 ft at 12:30AM May 17, 2022Observed: 4.71 ft at 12:45AM May 17, 2022Observed: 4.7 ft at 1:00AM May 17, 2022Observed: 4.71 ft at 1:15AM May 17, 2022Observed: 4.7 ft at 1:30AM May 17, 2022Observed: 4.71 ft at 1:45AM May 17, 2022Observed: 4.71 ft at 2:00AM May 17, 2022Observed: 4.7 ft at 2:15AM May 17, 2022Observed: 4.7 ft at 2:30AM May 17, 2022Observed: 4.7 ft at 2:45AM May 17, 2022Observed: 4.69 ft at 3:00AM May 17, 2022Observed: 4.69 ft at 3:15AM May 17, 2022Observed: 4.69 ft at 3:30AM May 17, 2022Observed: 4.69 ft at 3:45AM May 17, 2022Observed: 4.68 ft at 4:00AM May 17, 2022Observed: 4.69 ft at 4:15AM May 17, 2022Observed: 4.69 ft at 4:30AM May 17, 2022Observed: 4.69 ft at 4:45AM May 17, 2022Observed: 4.68 ft at 5:00AM May 17, 2022Observed: 4.67 ft at 5:15AM May 17, 2022Observed: 4.68 ft at 5:30AM May 17, 2022Observed: 4.68 ft at 5:45AM May 17, 2022Observed: 4.68 ft at 5:46AM May 17, 2022Observed: 4.67 ft at 6:00AM May 17, 2022Observed: 4.67 ft at 6:01AM May 17, 2022Observed: 4.66 ft at 6:15AM May 17, 2022Observed: 4.66 ft at 6:16AM May 17, 2022Observed: 4.67 ft at 6:30AM May 17, 2022Observed: 4.67 ft at 6:45AM May 17, 2022Observed: 4.68 ft at 7:00AM May 17, 2022Observed: 4.67 ft at 7:15AM May 17, 2022Observed: 4.67 ft at 7:30AM May 17, 2022Observed: 4.67 ft at 7:45AM May 17, 2022Observed: 4.68 ft at 8:00AM May 17, 2022Observed: 4.67 ft at 8:15AM May 17, 2022Observed: 4.67 ft at 8:30AM May 17, 2022Observed: 4.67 ft at 8:45AM May 17, 2022Observed: 4.7 ft at 9:00AM May 17, 2022Observed: 4.71 ft at 9:15AM May 17, 2022Observed: 4.72 ft at 9:30AM May 17, 2022Observed: 4.72 ft at 9:45AM May 17, 2022Observed: 4.71 ft at 10:00AM May 17, 2022Observed: 4.72 ft at 10:15AM May 17, 2022Observed: 4.73 ft at 10:30AM May 17, 2022Observed: 4.73 ft at 10:45AM May 17, 2022Observed: 4.73 ft at 11:00AM May 17, 2022Observed: 4.72 ft at 11:15AM May 17, 2022Observed: 4.73 ft at 11:30AM May 17, 2022Observed: 4.73 ft at 11:45AM May 17, 2022Observed: 4.72 ft at 12:00PM May 17, 2022Observed: 4.73 ft at 12:15PM May 17, 2022Observed: 4.73 ft at 12:30PM May 17, 2022Observed: 4.72 ft at 12:45PM May 17, 2022Observed: 4.72 ft at 1:00PM May 17, 2022Observed: 4.72 ft at 1:15PM May 17, 2022Observed: 4.73 ft at 1:30PM May 17, 2022Observed: 4.73 ft at 1:45PM May 17, 2022Observed: 4.74 ft at 2:00PM May 17, 2022Observed: 4.74 ft at 2:01PM May 17, 2022Observed: 4.75 ft at 2:15PM May 17, 2022Observed: 4.75 ft at 2:16PM May 17, 2022Observed: 4.74 ft at 2:30PM May 17, 2022Observed: 4.74 ft at 2:31PM May 17, 2022Observed: 4.74 ft at 2:45PM May 17, 2022Observed: 4.74 ft at 3:00PM May 17, 2022Observed: 4.74 ft at 3:15PM May 17, 2022Observed: 4.75 ft at 3:30PM May 17, 2022Observed: 4.74 ft at 3:45PM May 17, 2022Observed: 4.75 ft at 4:00PM May 17, 2022Observed: 4.74 ft at 4:15PM May 17, 2022Observed: 4.74 ft at 4:30PM May 17, 2022Observed: 4.75 ft at 4:45PM May 17, 2022Observed: 4.75 ft at 5:00PM May 17, 2022Observed: 4.75 ft at 5:15PM May 17, 2022Observed: 4.75 ft at 5:30PM May 17, 2022Observed: 4.76 ft at 5:45PM May 17, 2022Observed: 4.76 ft at 6:00PM May 17, 2022Observed: 4.76 ft at 6:15PM May 17, 2022Observed: 4.77 ft at 6:30PM May 17, 2022Observed: 4.76 ft at 6:45PM May 17, 2022Observed: 4.77 ft at 7:00PM May 17, 2022Observed: 4.77 ft at 7:15PM May 17, 2022Observed: 4.78 ft at 7:30PM May 17, 2022Observed: 4.78 ft at 7:45PM May 17, 2022Observed: 4.78 ft at 8:00PM May 17, 2022Observed: 4.79 ft at 8:15PM May 17, 2022Observed: 4.78 ft at 8:30PM May 17, 2022Observed: 4.79 ft at 8:45PM May 17, 2022Observed: 4.8 ft at 9:00PM May 17, 2022Observed: 4.8 ft at 9:15PM May 17, 2022Observed: 4.8 ft at 9:30PM May 17, 2022Observed: 4.81 ft at 9:45PM May 17, 2022Observed: 4.8 ft at 10:00PM May 17, 2022Observed: 4.8 ft at 10:01PM May 17, 2022Observed: 4.81 ft at 10:15PM May 17, 2022Observed: 4.81 ft at 10:16PM May 17, 2022Observed: 4.82 ft at 10:30PM May 17, 2022Observed: 4.82 ft at 10:31PM May 17, 2022Observed: 4.83 ft at 10:45PM May 17, 2022Observed: 4.83 ft at 11:00PM May 17, 2022Observed: 4.82 ft at 11:15PM May 17, 2022Observed: 4.83 ft at 11:30PM May 17, 2022Observed: 4.84 ft at 11:45PM May 17, 2022Observed: 4.85 ft at 12:00AM May 18, 2022Observed: 4.85 ft at 12:15AM May 18, 2022Observed: 4.85 ft at 12:30AM May 18, 2022Observed: 4.85 ft at 12:45AM May 18, 2022Observed: 4.84 ft at 1:00AM May 18, 2022Observed: 4.86 ft at 1:15AM May 18, 2022Observed: 4.87 ft at 1:30AM May 18, 2022Observed: 4.87 ft at 1:45AM May 18, 2022Observed: 4.87 ft at 2:00AM May 18, 2022Observed: 4.88 ft at 2:15AM May 18, 2022Observed: 4.87 ft at 2:30AM May 18, 2022Observed: 4.89 ft at 2:45AM May 18, 2022Observed: 4.89 ft at 3:00AM May 18, 2022Observed: 4.9 ft at 3:15AM May 18, 2022Observed: 4.89 ft at 3:30AM May 18, 2022Observed: 4.89 ft at 3:45AM May 18, 2022Observed: 4.9 ft at 4:00AM May 18, 2022Observed: 4.91 ft at 4:15AM May 18, 2022Observed: 4.9 ft at 4:30AM May 18, 2022Observed: 4.91 ft at 4:45AM May 18, 2022Observed: 4.91 ft at 5:00AM May 18, 2022Observed: 4.92 ft at 5:15AM May 18, 2022Observed: 4.93 ft at 5:30AM May 18, 2022Observed: 4.91 ft at 5:45AM May 18, 2022Observed: 4.91 ft at 6:00AM May 18, 2022Observed: 4.91 ft at 6:01AM May 18, 2022Observed: 4.93 ft at 6:15AM May 18, 2022Observed: 4.93 ft at 6:16AM May 18, 2022Observed: 4.93 ft at 6:30AM May 18, 2022Observed: 4.93 ft at 6:31AM May 18, 2022Observed: 4.93 ft at 6:45AM May 18, 2022Observed: 4.93 ft at 7:00AM May 18, 2022Observed: 4.93 ft at 7:15AM May 18, 2022Observed: 4.94 ft at 7:30AM May 18, 2022Observed: 4.93 ft at 7:45AM May 18, 2022Observed: 4.93 ft at 8:00AM May 18, 2022Observed: 4.93 ft at 8:15AM May 18, 2022Observed: 4.93 ft at 8:30AM May 18, 2022Observed: 4.94 ft at 8:45AM May 18, 2022Observed: 4.93 ft at 9:00AM May 18, 2022Observed: 4.94 ft at 9:15AM May 18, 2022Observed: 4.93 ft at 9:30AM May 18, 2022Observed: 4.95 ft at 9:45AM May 18, 2022Observed: 4.95 ft at 10:00AM May 18, 2022Observed: 4.94 ft at 10:15AM May 18, 2022Observed: 4.94 ft at 10:30AM May 18, 2022Observed: 4.93 ft at 10:45AM May 18, 2022Observed: 4.94 ft at 11:00AM May 18, 2022Observed: 4.95 ft at 11:15AM May 18, 2022Observed: 4.93 ft at 11:30AM May 18, 2022Observed: 4.95 ft at 11:45AM May 18, 2022Observed: 4.94 ft at 12:00PM May 18, 2022Observed: 4.93 ft at 12:15PM May 18, 2022Observed: 4.95 ft at 12:30PM May 18, 2022Observed: 4.94 ft at 12:45PM May 18, 2022Observed: 4.94 ft at 1:00PM May 18, 2022Observed: 4.94 ft at 1:15PM May 18, 2022Observed: 4.94 ft at 1:30PM May 18, 2022Observed: 4.94 ft at 1:45PM May 18, 2022Observed: 4.95 ft at 2:00PM May 18, 2022Observed: 4.95 ft at 2:01PM May 18, 2022Observed: 4.94 ft at 2:15PM May 18, 2022Observed: 4.94 ft at 2:16PM May 18, 2022Observed: 4.94 ft at 2:30PM May 18, 2022Observed: 4.94 ft at 2:31PM May 18, 2022Observed: 4.93 ft at 2:45PM May 18, 2022Observed: 4.94 ft at 3:00PM May 18, 2022Observed: 4.93 ft at 3:15PM May 18, 2022Observed: 4.92 ft at 3:30PM May 18, 2022Observed: 4.94 ft at 3:45PM May 18, 2022Observed: 4.94 ft at 4:00PM May 18, 2022Observed: 4.94 ft at 4:15PM May 18, 2022Observed: 4.93 ft at 4:30PM May 18, 2022Observed: 4.94 ft at 4:45PM May 18, 2022Observed: 4.94 ft at 5:00PM May 18, 2022Observed: 4.93 ft at 5:15PM May 18, 2022Observed: 4.94 ft at 5:30PM May 18, 2022Observed: 4.93 ft at 5:45PM May 18, 2022Observed: 4.94 ft at 6:00PM May 18, 2022Observed: 4.93 ft at 6:15PM May 18, 2022Observed: 4.94 ft at 6:30PM May 18, 2022Observed: 4.94 ft at 6:45PM May 18, 2022Observed: 4.93 ft at 7:00PM May 18, 2022Observed: 4.93 ft at 7:15PM May 18, 2022Observed: 4.92 ft at 7:30PM May 18, 2022Observed: 4.93 ft at 7:45PM May 18, 2022Observed: 4.92 ft at 8:00PM May 18, 2022Observed: 4.92 ft at 8:15PM May 18, 2022Observed: 4.93 ft at 8:30PM May 18, 2022Observed: 4.91 ft at 8:45PM May 18, 2022Observed: 4.92 ft at 9:00PM May 18, 2022Observed: 4.92 ft at 9:15PM May 18, 2022Observed: 4.91 ft at 9:30PM May 18, 2022Observed: 4.91 ft at 9:45PM May 18, 2022Observed: 4.92 ft at 10:00PM May 18, 2022Observed: 4.92 ft at 10:01PM May 18, 2022Observed: 4.92 ft at 10:15PM May 18, 2022Observed: 4.92 ft at 10:16PM May 18, 2022Observed: 4.92 ft at 10:30PM May 18, 2022Observed: 4.92 ft at 10:31PM May 18, 2022Observed: 4.91 ft at 10:45PM May 18, 2022Observed: 4.91 ft at 11:00PM May 18, 2022Observed: 4.91 ft at 11:15PM May 18, 2022Observed: 4.9 ft at 11:30PM May 18, 2022Observed: 4.91 ft at 11:45PM May 18, 2022Observed: 4.9 ft at 12:00AM May 19, 2022Observed: 4.91 ft at 12:15AM May 19, 2022Observed: 4.9 ft at 12:30AM May 19, 2022Observed: 4.9 ft at 12:45AM May 19, 2022Observed: 4.89 ft at 1:00AM May 19, 2022Observed: 4.9 ft at 1:15AM May 19, 2022Observed: 4.89 ft at 1:30AM May 19, 2022Observed: 4.9 ft at 1:45AM May 19, 2022Observed: 4.89 ft at 2:00AM May 19, 2022Observed: 4.89 ft at 2:15AM May 19, 2022Observed: 4.89 ft at 2:30AM May 19, 2022Observed: 4.89 ft at 2:45AM May 19, 2022Observed: 4.88 ft at 3:00AM May 19, 2022Observed: 4.88 ft at 3:15AM May 19, 2022Observed: 4.87 ft at 3:30AM May 19, 2022Observed: 4.88 ft at 3:45AM May 19, 2022Observed: 4.88 ft at 4:00AM May 19, 2022Observed: 4.87 ft at 4:15AM May 19, 2022Observed: 4.88 ft at 4:30AM May 19, 2022Observed: 4.87 ft at 4:45AM May 19, 2022Observed: 4.86 ft at 5:00AM May 19, 2022Observed: 4.87 ft at 5:15AM May 19, 2022Observed: 4.86 ft at 5:30AM May 19, 2022Observed: 4.87 ft at 5:45AM May 19, 2022Observed: 4.86 ft at 6:00AM May 19, 2022Observed: 4.86 ft at 6:01AM May 19, 2022Observed: 4.86 ft at 6:15AM May 19, 2022Observed: 4.86 ft at 6:16AM May 19, 2022Observed: 4.85 ft at 6:30AM May 19, 2022Observed: 4.85 ft at 6:31AM May 19, 2022Observed: 4.85 ft at 6:45AM May 19, 2022Observed: 4.85 ft at 7:00AM May 19, 2022Observed: 4.85 ft at 7:15AM May 19, 2022Observed: 4.84 ft at 7:30AM May 19, 2022Observed: 4.85 ft at 7:45AM May 19, 2022Observed: 4.85 ft at 8:00AM May 19, 2022Observed: 4.85 ft at 8:15AM May 19, 2022Observed: 4.84 ft at 8:30AM May 19, 2022Observed: 4.84 ft at 8:45AM May 19, 2022Observed: 4.84 ft at 9:00AM May 19, 2022Observed: 4.84 ft at 9:15AM May 19, 2022Observed: 4.83 ft at 9:30AM May 19, 2022Observed: 4.81 ft at 9:45AM May 19, 2022Observed: 4.83 ft at 10:00AM May 19, 2022Observed: 4.84 ft at 10:15AM May 19, 2022Observed: 4.83 ft at 10:30AM May 19, 2022Observed: 4.83 ft at 10:45AM May 19, 2022Observed: 4.83 ft at 11:00AM May 19, 2022Observed: 4.83 ft at 11:15AM May 19, 2022Observed: 4.83 ft at 11:30AM May 19, 2022Observed: 4.82 ft at 11:45AM May 19, 2022Observed: 4.82 ft at 12:00PM May 19, 2022Observed: 4.81 ft at 12:15PM May 19, 2022Observed: 4.81 ft at 12:30PM May 19, 2022Observed: 4.82 ft at 12:45PM May 19, 2022Observed: 4.81 ft at 1:00PM May 19, 2022Observed: 4.82 ft at 1:15PM May 19, 2022Observed: 4.82 ft at 1:30PM May 19, 2022Observed: 4.82 ft at 1:45PM May 19, 2022Observed: 4.81 ft at 2:00PM May 19, 2022Observed: 4.81 ft at 2:01PM May 19, 2022Observed: 4.81 ft at 2:15PM May 19, 2022Observed: 4.81 ft at 2:16PM May 19, 2022Observed: 4.81 ft at 2:30PM May 19, 2022Observed: 4.81 ft at 2:31PM May 19, 2022Observed: 4.81 ft at 2:45PM May 19, 2022Observed: 4.81 ft at 3:00PM May 19, 2022Observed: 4.81 ft at 3:15PM May 19, 2022Observed: 4.8 ft at 3:30PM May 19, 2022Observed: 4.79 ft at 3:45PM May 19, 2022Observed: 4.8 ft at 4:00PM May 19, 2022Observed: 4.79 ft at 4:15PM May 19, 2022Observed: 4.79 ft at 4:30PM May 19, 2022Observed: 4.77 ft at 4:45PM May 19, 2022Observed: 4.78 ft at 5:00PM May 19, 2022Observed: 4.77 ft at 5:15PM May 19, 2022Observed: 4.77 ft at 5:30PM May 19, 2022Observed: 4.76 ft at 5:45PM May 19, 2022Observed: 4.77 ft at 6:00PM May 19, 2022Observed: 4.76 ft at 6:15PM May 19, 2022Observed: 4.76 ft at 6:30PM May 19, 2022Observed: 4.76 ft at 6:45PM May 19, 2022Observed: 4.76 ft at 7:00PM May 19, 2022Observed: 4.76 ft at 7:15PM May 19, 2022Observed: 4.75 ft at 7:30PM May 19, 2022Observed: 4.75 ft at 7:45PM May 19, 2022Observed: 4.76 ft at 8:00PM May 19, 2022Observed: 4.75 ft at 8:15PM May 19, 2022Observed: 4.75 ft at 8:30PM May 19, 2022Observed: 4.75 ft at 8:45PM May 19, 2022Observed: 4.73 ft at 9:00PM May 19, 2022Observed: 4.74 ft at 9:15PM May 19, 2022Observed: 4.72 ft at 9:30PM May 19, 2022Observed: 4.73 ft at 9:45PM May 19, 2022Observed: 4.73 ft at 10:00PM May 19, 2022Observed: 4.73 ft at 10:01PM May 19, 2022Observed: 4.73 ft at 10:15PM May 19, 2022Observed: 4.73 ft at 10:16PM May 19, 2022Observed: 4.72 ft at 10:30PM May 19, 2022Observed: 4.72 ft at 10:31PM May 19, 2022Observed: 4.72 ft at 10:45PM May 19, 2022Observed: 4.71 ft at 11:00PM May 19, 2022Observed: 4.71 ft at 11:15PM May 19, 2022Observed: 4.71 ft at 11:30PM May 19, 2022Observed: 4.72 ft at 11:45PM May 19, 2022Observed: 4.73 ft at 12:00AM May 20, 2022Observed: 4.71 ft at 12:15AM May 20, 2022Observed: 4.72 ft at 12:30AM May 20, 2022Observed: 4.71 ft at 12:45AM May 20, 2022Observed: 4.7 ft at 1:00AM May 20, 2022Observed: 4.7 ft at 1:15AM May 20, 2022Observed: 4.7 ft at 1:30AM May 20, 2022Observed: 4.71 ft at 1:45AM May 20, 2022Observed: 4.71 ft at 2:00AM May 20, 2022Observed: 4.71 ft at 2:15AM May 20, 2022Observed: 4.71 ft at 2:30AM May 20, 2022Observed: 4.71 ft at 2:45AM May 20, 2022Observed: 4.7 ft at 3:00AM May 20, 2022Observed: 4.7 ft at 3:15AM May 20, 2022Observed: 4.71 ft at 3:30AM May 20, 2022Observed: 4.7 ft at 3:45AM May 20, 2022Observed: 4.7 ft at 4:00AM May 20, 2022Observed: 4.69 ft at 4:15AM May 20, 2022Observed: 4.69 ft at 4:30AM May 20, 2022Observed: 4.69 ft at 4:45AM May 20, 2022Observed: 4.7 ft at 5:00AM May 20, 2022Observed: 4.69 ft at 5:15AM May 20, 2022Observed: 4.69 ft at 5:30AM May 20, 2022Observed: 4.69 ft at 5:45AM May 20, 2022Observed: 4.69 ft at 6:00AM May 20, 2022Observed: 4.69 ft at 6:01AM May 20, 2022Observed: 4.68 ft at 6:15AM May 20, 2022Observed: 4.68 ft at 6:16AM May 20, 2022Observed: 4.67 ft at 6:30AM May 20, 2022Observed: 4.67 ft at 6:31AM May 20, 2022Observed: 4.67 ft at 6:45AM May 20, 2022Observed: 4.67 ft at 7:00AM May 20, 2022Observed: 4.67 ft at 7:15AM May 20, 2022Observed: 4.67 ft at 7:30AM May 20, 2022Observed: 4.66 ft at 7:45AM May 20, 2022Observed: 4.66 ft at 8:00AM May 20, 2022Observed: 4.66 ft at 8:15AM May 20, 2022Observed: 4.66 ft at 8:30AM May 20, 2022Observed: 4.66 ft at 8:45AM May 20, 2022Observed: 4.66 ft at 9:00AM May 20, 2022Observed: 4.66 ft at 9:15AM May 20, 2022Observed: 4.66 ft at 9:30AM May 20, 2022Observed: 4.66 ft at 9:45AM May 20, 2022Observed: 4.65 ft at 10:00AM May 20, 2022Observed: 4.64 ft at 10:15AM May 20, 2022Observed: 4.64 ft at 10:30AM May 20, 2022Observed: 4.64 ft at 10:45AM May 20, 2022Observed: 4.63 ft at 11:00AM May 20, 2022Observed: 4.64 ft at 11:15AM May 20, 2022Observed: 4.64 ft at 11:30AM May 20, 2022Observed: 4.64 ft at 11:45AM May 20, 2022Observed: 4.63 ft at 12:00PM May 20, 2022Observed: 4.63 ft at 12:15PM May 20, 2022Observed: 4.62 ft at 12:30PM May 20, 2022Observed: 4.63 ft at 12:45PM May 20, 2022Observed: 4.63 ft at 1:00PM May 20, 2022Observed: 4.64 ft at 1:15PM May 20, 2022Observed: 4.62 ft at 1:30PM May 20, 2022Observed: 4.62 ft at 1:45PM May 20, 2022Observed: 4.63 ft at 2:00PM May 20, 2022Observed: 4.62 ft at 2:15PM May 20, 2022Observed: 4.62 ft at 2:16PM May 20, 2022Observed: 4.62 ft at 2:30PM May 20, 2022Observed: 4.62 ft at 2:31PM May 20, 2022Observed: 4.61 ft at 2:45PM May 20, 2022Observed: 4.61 ft at 2:46PM May 20, 2022Observed: 4.6 ft at 3:00PM May 20, 2022Observed: 4.6 ft at 3:15PM May 20, 2022Observed: 4.61 ft at 3:30PM May 20, 2022Observed: 4.61 ft at 3:45PM May 20, 2022Observed: 4.61 ft at 4:00PM May 20, 2022Observed: 4.61 ft at 4:15PM May 20, 2022Observed: 4.61 ft at 4:30PM May 20, 2022Observed: 4.61 ft at 4:45PM May 20, 2022Observed: 4.6 ft at 5:00PM May 20, 2022Observed: 4.6 ft at 5:15PM May 20, 2022Observed: 4.6 ft at 5:30PM May 20, 2022Observed: 4.59 ft at 5:45PM May 20, 2022Observed: 4.6 ft at 6:00PM May 20, 2022Observed: 4.59 ft at 6:15PM May 20, 2022Observed: 4.6 ft at 6:30PM May 20, 2022Observed: 4.6 ft at 6:45PM May 20, 2022Observed: 4.6 ft at 7:00PM May 20, 2022Observed: 4.59 ft at 7:15PM May 20, 2022Observed: 4.59 ft at 7:30PM May 20, 2022Observed: 4.6 ft at 7:45PM May 20, 2022Observed: 4.59 ft at 8:00PM May 20, 2022Observed: 4.58 ft at 8:15PM May 20, 2022Observed: 4.6 ft at 8:30PM May 20, 2022Observed: 4.59 ft at 8:45PM May 20, 2022Observed: 4.57 ft at 11:00PM May 20, 2022Observed: 4.58 ft at 11:15PM May 20, 2022Observed: 4.57 ft at 11:30PM May 20, 2022Observed: 4.58 ft at 11:45PM May 20, 2022Observed: 4.58 ft at 12:00AM May 21, 2022Observed: 4.57 ft at 12:15AM May 21, 2022Observed: 4.58 ft at 12:30AM May 21, 2022Observed: 4.56 ft at 12:45AM May 21, 2022Observed: 4.57 ft at 1:00AM May 21, 2022Observed: 4.58 ft at 1:15AM May 21, 2022Observed: 4.57 ft at 1:30AM May 21, 2022Observed: 4.58 ft at 1:45AM May 21, 2022Observed: 4.56 ft at 2:00AM May 21, 2022Observed: 4.56 ft at 2:15AM May 21, 2022Observed: 4.57 ft at 2:30AM May 21, 2022Observed: 4.57 ft at 2:45AM May 21, 2022Observed: 4.57 ft at 3:00AM May 21, 2022Observed: 4.57 ft at 3:15AM May 21, 2022Observed: 4.56 ft at 3:30AM May 21, 2022Observed: 4.57 ft at 3:45AM May 21, 2022Observed: 4.57 ft at 4:00AM May 21, 2022Observed: 4.56 ft at 4:15AM May 21, 2022Observed: 4.57 ft at 4:30AM May 21, 2022Observed: 4.58 ft at 4:45AM May 21, 2022Observed: 4.57 ft at 5:00AM May 21, 2022Observed: 4.57 ft at 5:15AM May 21, 2022Observed: 4.58 ft at 5:30AM May 21, 2022Observed: 4.58 ft at 5:45AM May 21, 2022Observed: 4.57 ft at 6:00AM May 21, 2022Observed: 4.58 ft at 6:15AM May 21, 2022Observed: 4.58 ft at 6:16AM May 21, 2022Observed: 4.59 ft at 6:30AM May 21, 2022Observed: 4.59 ft at 6:31AM May 21, 2022Observed: 4.57 ft at 6:45AM May 21, 2022Observed: 4.57 ft at 6:46AM May 21, 2022Observed: 4.58 ft at 7:00AM May 21, 2022Observed: 4.6 ft at 7:15AM May 21, 2022Observed: 4.59 ft at 7:30AM May 21, 2022Observed: 4.58 ft at 7:45AM May 21, 2022Observed: 4.59 ft at 8:00AM May 21, 2022Observed: 4.59 ft at 8:15AM May 21, 2022Observed: 4.58 ft at 8:30AM May 21, 2022Observed: 4.59 ft at 8:45AM May 21, 2022Observed: 4.57 ft at 9:00AM May 21, 2022Observed: 4.57 ft at 9:15AM May 21, 2022Observed: 4.58 ft at 9:30AM May 21, 2022Observed: 4.57 ft at 9:45AM May 21, 2022Observed: 4.57 ft at 10:00AM May 21, 2022Observed: 4.56 ft at 10:15AM May 21, 2022Observed: 4.57 ft at 10:30AM May 21, 2022Observed: 4.56 ft at 10:45AM May 21, 2022Observed: 4.57 ft at 11:00AM May 21, 2022Observed: 4.56 ft at 11:15AM May 21, 2022Observed: 4.56 ft at 11:30AM May 21, 2022Observed: 4.55 ft at 11:45AM May 21, 2022Observed: 4.55 ft at 12:00PM May 21, 2022Observed: 4.55 ft at 12:15PM May 21, 2022Observed: 4.55 ft at 12:30PM May 21, 2022Observed: 4.54 ft at 12:45PM May 21, 2022Observed: 4.54 ft at 1:00PM May 21, 2022Observed: 4.54 ft at 1:15PM May 21, 2022Observed: 4.53 ft at 1:30PM May 21, 2022Observed: 4.54 ft at 1:45PM May 21, 2022Observed: 4.54 ft at 2:00PM May 21, 2022Observed: 4.54 ft at 2:15PM May 21, 2022Observed: 4.54 ft at 2:16PM May 21, 2022Observed: 4.53 ft at 2:30PM May 21, 2022Observed: 4.53 ft at 2:31PM May 21, 2022Observed: 4.53 ft at 2:45PM May 21, 2022Observed: 4.53 ft at 2:46PM May 21, 2022Observed: 4.53 ft at 3:00PM May 21, 2022Observed: 4.52 ft at 3:15PM May 21, 2022Observed: 4.53 ft at 3:30PM May 21, 2022Observed: 4.53 ft at 3:45PM May 21, 2022Observed: 4.53 ft at 4:00PM May 21, 2022Observed: 4.53 ft at 4:15PM May 21, 2022Observed: 4.53 ft at 4:30PM May 21, 2022Observed: 4.52 ft at 4:45PM May 21, 2022Observed: 4.52 ft at 5:00PM May 21, 2022Observed: 4.52 ft at 5:15PM May 21, 2022Observed: 4.52 ft at 5:30PM May 21, 2022Observed: 4.53 ft at 5:45PM May 21, 2022Observed: 4.52 ft at 6:00PM May 21, 2022Observed: 4.52 ft at 6:15PM May 21, 2022Observed: 4.52 ft at 6:30PM May 21, 2022Observed: 4.53 ft at 6:45PM May 21, 2022Observed: 4.52 ft at 7:00PM May 21, 2022Observed: 4.5 ft at 7:15PM May 21, 2022Observed: 4.51 ft at 7:30PM May 21, 2022Observed: 4.52 ft at 7:45PM May 21, 2022Observed: 4.52 ft at 8:00PM May 21, 2022Observed: 4.52 ft at 8:15PM May 21, 2022Observed: 4.52 ft at 8:30PM May 21, 2022Observed: 4.52 ft at 8:45PM May 21, 2022Observed: 4.51 ft at 9:00PM May 21, 2022Observed: 4.52 ft at 9:15PM May 21, 2022Observed: 4.52 ft at 9:30PM May 21, 2022Observed: 4.52 ft at 9:45PM May 21, 2022Observed: 4.51 ft at 10:00PM May 21, 2022Observed: 4.51 ft at 10:15PM May 21, 2022Observed: 4.52 ft at 10:30PM May 21, 2022Observed: 4.5 ft at 10:45PM May 21, 2022Observed: 4.5 ft at 11:00PM May 21, 2022Observed: 4.51 ft at 11:15PM May 21, 2022Observed: 4.51 ft at 11:30PM May 21, 2022Observed: 4.51 ft at 11:45PM May 21, 2022USGS--Water Resources of the United StatesFCRS2(plotting HGIRG) Graph Created (12:49AM May 22, 2022)ObservedLatest observed value: 4.51 ft at 11:45 PM CDT 21-May-2022. Flood Stage is 9 ft
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: No forecasts are available for this location

NOTE: Forecasts are not available for the Big Sioux River at Flandreau. Only observed stages are available for this point.

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Upstream Gauge - above Flandreau Upstream Gauge Downstream Gauge Downstream Gauge - near Dell Rapids
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 12
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 17.80 ft on 04/09/1969
(2) 15.30 ft on 09/12/2019
(3) 15.00 ft on 06/22/1984
(4) 14.20 ft on 06/17/1957
(5) 14.00 ft on 07/04/1993
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.30 ft on 09/12/2019
(2) 13.90 ft on 03/23/2011 (P)
(3) 12.20 ft on 03/17/2010
(4) 12.60 ft on 04/23/2001
(5) 13.60 ft on 04/03/1997
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:14
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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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
15 There is significant flooding at the Flandreau Indian School and the water pumping plant begins to flood.
13.5 About 20 homes in Trent are surrounded by water, and the Flandreau Creek Country Club golf course is flooded.
13 240th Street west of Trent is flooded and water threatens some homes in Trent.
12 The Road leading to the Flandreau Indian School begins to flood, and there is significant flooding in the Flandreau city park.
11 The Flandreau city park begins to flood.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 44.053611° N, Longitude: 96.593611° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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 1519.2 ft 1530.2 ft  
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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
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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