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Hydrograph River at a Glance Download
Big Sioux River at Hawarden Stage (ft)Flow (kcfs)Observed: 24.37 ft at 7:00PM May 17, 2022Observed: 24.37 ft at 7:01PM May 17, 2022Observed: 24.43 ft at 7:15PM May 17, 2022Observed: 24.42 ft at 7:30PM May 17, 2022Observed: 24.48 ft at 7:45PM May 17, 2022Observed: 24.48 ft at 8:00PM May 17, 2022Observed: 24.52 ft at 8:15PM May 17, 2022Observed: 24.53 ft at 8:30PM May 17, 2022Observed: 24.57 ft at 8:45PM May 17, 2022Observed: 24.57 ft at 9:00PM May 17, 2022Observed: 24.61 ft at 9:15PM May 17, 2022Observed: 24.62 ft at 9:30PM May 17, 2022Observed: 24.65 ft at 9:45PM May 17, 2022Observed: 24.67 ft at 10:00PM May 17, 2022Observed: 24.66 ft at 10:15PM May 17, 2022Observed: 24.7 ft at 10:30PM May 17, 2022Observed: 24.73 ft at 10:45PM May 17, 2022Observed: 24.76 ft at 11:00PM May 17, 2022Observed: 24.75 ft at 11:15PM May 17, 2022Observed: 24.77 ft at 11:30PM May 17, 2022Observed: 24.75 ft at 11:45PM May 17, 2022Observed: 24.75 ft at 12:00AM May 18, 2022Observed: 24.7 ft at 12:15AM May 18, 2022Observed: 24.69 ft at 12:30AM May 18, 2022Observed: 24.64 ft at 12:45AM May 18, 2022Observed: 24.57 ft at 1:00AM May 18, 2022Observed: 24.49 ft at 1:15AM May 18, 2022Observed: 24.44 ft at 1:30AM May 18, 2022Observed: 24.36 ft at 1:45AM May 18, 2022Observed: 24.28 ft at 2:00AM May 18, 2022Observed: 24.24 ft at 2:15AM May 18, 2022Observed: 24.14 ft at 2:30AM May 18, 2022Observed: 24.06 ft at 2:45AM May 18, 2022Observed: 24.06 ft at 2:46AM May 18, 2022Observed: 23.97 ft at 3:00AM May 18, 2022Observed: 23.97 ft at 3:01AM May 18, 2022Observed: 23.93 ft at 3:15AM May 18, 2022Observed: 23.93 ft at 3:16AM May 18, 2022Observed: 23.83 ft at 3:30AM May 18, 2022Observed: 23.74 ft at 3:45AM May 18, 2022Observed: 23.69 ft at 4:00AM May 18, 2022Observed: 23.6 ft at 4:15AM May 18, 2022Observed: 23.54 ft at 4:30AM May 18, 2022Observed: 23.42 ft at 4:45AM May 18, 2022Observed: 23.36 ft at 5:00AM May 18, 2022Observed: 23.29 ft at 5:15AM May 18, 2022Observed: 23.2 ft at 5:30AM May 18, 2022Observed: 23.12 ft at 5:45AM May 18, 2022Observed: 23.09 ft at 6:00AM May 18, 2022Observed: 22.99 ft at 6:15AM May 18, 2022Observed: 22.9 ft at 6:30AM May 18, 2022Observed: 22.83 ft at 6:45AM May 18, 2022Observed: 22.75 ft at 7:00AM May 18, 2022Observed: 22.71 ft at 7:15AM May 18, 2022Observed: 22.61 ft at 7:30AM May 18, 2022Observed: 22.53 ft at 7:45AM May 18, 2022Observed: 22.46 ft at 8:00AM May 18, 2022Observed: 22.44 ft at 8:15AM May 18, 2022Observed: 22.24 ft at 9:30AM May 18, 2022Observed: 22.24 ft at 9:45AM May 18, 2022Observed: 22.28 ft at 10:00AM May 18, 2022Observed: 22.29 ft at 10:15AM May 18, 2022Observed: 22.41 ft at 10:30AM May 18, 2022Observed: 22.44 ft at 10:45AM May 18, 2022Observed: 22.44 ft at 10:46AM May 18, 2022Observed: 22.49 ft at 11:00AM May 18, 2022Observed: 22.49 ft at 11:01AM May 18, 2022Observed: 22.61 ft at 11:15AM May 18, 2022Observed: 22.61 ft at 11:16AM May 18, 2022Observed: 22.66 ft at 11:30AM May 18, 2022Observed: 22.73 ft at 11:45AM May 18, 2022Observed: 22.85 ft at 12:00PM May 18, 2022Observed: 22.91 ft at 12:15PM May 18, 2022Observed: 23 ft at 12:30PM May 18, 2022Observed: 23.1 ft at 12:45PM May 18, 2022Observed: 23.17 ft at 1:00PM May 18, 2022Observed: 23.22 ft at 1:15PM May 18, 2022Observed: 23.32 ft at 1:30PM May 18, 2022Observed: 23.37 ft at 1:45PM May 18, 2022Observed: 23.45 ft at 2:00PM May 18, 2022Observed: 23.49 ft at 2:15PM May 18, 2022Observed: 23.56 ft at 2:30PM May 18, 2022Observed: 23.62 ft at 2:45PM May 18, 2022Observed: 23.67 ft at 3:00PM May 18, 2022Observed: 23.76 ft at 3:15PM May 18, 2022Observed: 23.78 ft at 3:30PM May 18, 2022Observed: 23.83 ft at 3:45PM May 18, 2022Observed: 23.91 ft at 4:00PM May 18, 2022Observed: 23.97 ft at 4:15PM May 18, 2022Observed: 23.97 ft at 4:30PM May 18, 2022Observed: 24.04 ft at 4:45PM May 18, 2022Observed: 24.07 ft at 5:00PM May 18, 2022Observed: 24.13 ft at 5:15PM May 18, 2022Observed: 24.15 ft at 5:30PM May 18, 2022Observed: 24.19 ft at 5:45PM May 18, 2022Observed: 24.26 ft at 6:00PM May 18, 2022Observed: 24.27 ft at 6:15PM May 18, 2022Observed: 24.32 ft at 6:30PM May 18, 2022Observed: 24.35 ft at 6:45PM May 18, 2022Observed: 24.35 ft at 6:46PM May 18, 2022Observed: 24.39 ft at 7:00PM May 18, 2022Observed: 24.39 ft at 7:01PM May 18, 2022Observed: 24.38 ft at 7:15PM May 18, 2022Observed: 24.38 ft at 7:16PM May 18, 2022Observed: 24.41 ft at 7:30PM May 18, 2022Observed: 24.45 ft at 7:45PM May 18, 2022Observed: 24.49 ft at 8:00PM May 18, 2022Observed: 24.52 ft at 8:15PM May 18, 2022Observed: 24.55 ft at 8:30PM May 18, 2022Observed: 24.57 ft at 8:45PM May 18, 2022Observed: 24.57 ft at 9:00PM May 18, 2022Observed: 24.61 ft at 9:15PM May 18, 2022Observed: 24.63 ft at 9:30PM May 18, 2022Observed: 24.65 ft at 9:45PM May 18, 2022Observed: 24.66 ft at 10:00PM May 18, 2022Observed: 24.7 ft at 10:15PM May 18, 2022Observed: 24.69 ft at 10:30PM May 18, 2022Observed: 24.75 ft at 10:45PM May 18, 2022Observed: 24.74 ft at 11:00PM May 18, 2022Observed: 24.78 ft at 11:15PM May 18, 2022Observed: 24.78 ft at 11:30PM May 18, 2022Observed: 24.78 ft at 11:45PM May 18, 2022Observed: 24.75 ft at 12:00AM May 19, 2022Observed: 24.72 ft at 12:15AM May 19, 2022Observed: 24.69 ft at 12:30AM May 19, 2022Observed: 24.66 ft at 12:45AM May 19, 2022Observed: 24.58 ft at 1:00AM May 19, 2022Observed: 24.55 ft at 1:15AM May 19, 2022Observed: 24.45 ft at 1:30AM May 19, 2022Observed: 24.39 ft at 1:45AM May 19, 2022Observed: 24.36 ft at 2:00AM May 19, 2022Observed: 24.25 ft at 2:15AM May 19, 2022Observed: 24.17 ft at 2:30AM May 19, 2022Observed: 24.11 ft at 2:45AM May 19, 2022Observed: 24.11 ft at 2:46AM May 19, 2022Observed: 24.02 ft at 3:00AM May 19, 2022Observed: 24.02 ft at 3:01AM May 19, 2022Observed: 23.94 ft at 3:15AM May 19, 2022Observed: 23.94 ft at 3:16AM May 19, 2022Observed: 23.86 ft at 3:30AM May 19, 2022Observed: 23.77 ft at 3:45AM May 19, 2022Observed: 23.71 ft at 4:00AM May 19, 2022Observed: 23.63 ft at 4:15AM May 19, 2022Observed: 23.55 ft at 4:30AM May 19, 2022Observed: 23.5 ft at 4:45AM May 19, 2022Observed: 23.38 ft at 5:00AM May 19, 2022Observed: 23.31 ft at 5:15AM May 19, 2022Observed: 23.27 ft at 5:30AM May 19, 2022Observed: 23.18 ft at 5:45AM May 19, 2022Observed: 23.09 ft at 6:00AM May 19, 2022Observed: 23.02 ft at 6:15AM May 19, 2022Observed: 22.93 ft at 6:30AM May 19, 2022Observed: 22.88 ft at 6:45AM May 19, 2022Observed: 22.79 ft at 7:00AM May 19, 2022Observed: 22.76 ft at 7:15AM May 19, 2022Observed: 22.64 ft at 7:30AM May 19, 2022Observed: 22.56 ft at 7:45AM May 19, 2022Observed: 22.51 ft at 8:00AM May 19, 2022Observed: 22.43 ft at 8:15AM May 19, 2022Observed: 22.4 ft at 8:30AM May 19, 2022Observed: 22.34 ft at 8:45AM May 19, 2022Observed: 22.29 ft at 9:00AM May 19, 2022Observed: 22.3 ft at 9:15AM May 19, 2022Observed: 22.28 ft at 9:30AM May 19, 2022Observed: 22.33 ft at 9:45AM May 19, 2022Observed: 22.32 ft at 10:00AM May 19, 2022Observed: 22.39 ft at 10:15AM May 19, 2022Observed: 22.43 ft at 10:30AM May 19, 2022Observed: 22.49 ft at 10:45AM May 19, 2022Observed: 22.49 ft at 10:46AM May 19, 2022Observed: 22.55 ft at 11:00AM May 19, 2022Observed: 22.55 ft at 11:01AM May 19, 2022Observed: 22.63 ft at 11:15AM May 19, 2022Observed: 22.63 ft at 11:16AM May 19, 2022Observed: 22.7 ft at 11:30AM May 19, 2022Observed: 22.8 ft at 11:45AM May 19, 2022Observed: 22.88 ft at 12:00PM May 19, 2022Observed: 22.97 ft at 12:15PM May 19, 2022Observed: 23.07 ft at 12:30PM May 19, 2022Observed: 23.13 ft at 12:45PM May 19, 2022Observed: 23.19 ft at 1:00PM May 19, 2022Observed: 23.27 ft at 1:15PM May 19, 2022Observed: 23.37 ft at 1:30PM May 19, 2022Observed: 23.39 ft at 1:45PM May 19, 2022Observed: 23.46 ft at 2:00PM May 19, 2022Observed: 23.53 ft at 2:15PM May 19, 2022Observed: 23.59 ft at 2:30PM May 19, 2022Observed: 23.64 ft at 2:45PM May 19, 2022Observed: 23.7 ft at 3:00PM May 19, 2022Observed: 23.76 ft at 3:15PM May 19, 2022Observed: 23.81 ft at 3:30PM May 19, 2022Observed: 23.86 ft at 3:45PM May 19, 2022Observed: 23.89 ft at 4:00PM May 19, 2022Observed: 23.95 ft at 4:15PM May 19, 2022Observed: 23.98 ft at 4:30PM May 19, 2022Observed: 24.02 ft at 4:45PM May 19, 2022Observed: 24.07 ft at 5:00PM May 19, 2022Observed: 24.1 ft at 5:15PM May 19, 2022Observed: 24.14 ft at 5:30PM May 19, 2022Observed: 24.17 ft at 5:45PM May 19, 2022Observed: 24.18 ft at 6:00PM May 19, 2022Observed: 24.25 ft at 6:15PM May 19, 2022Observed: 24.23 ft at 6:30PM May 19, 2022Observed: 24.3 ft at 6:45PM May 19, 2022Observed: 24.3 ft at 6:46PM May 19, 2022Observed: 24.29 ft at 7:00PM May 19, 2022Observed: 24.29 ft at 7:01PM May 19, 2022Observed: 24.38 ft at 7:15PM May 19, 2022Observed: 24.38 ft at 7:16PM May 19, 2022Observed: 24.4 ft at 7:30PM May 19, 2022Observed: 24.43 ft at 7:45PM May 19, 2022Observed: 24.4 ft at 8:00PM May 19, 2022Observed: 24.44 ft at 8:15PM May 19, 2022Observed: 24.47 ft at 8:30PM May 19, 2022Observed: 24.49 ft at 8:45PM May 19, 2022Observed: 24.49 ft at 9:00PM May 19, 2022Observed: 24.53 ft at 9:15PM May 19, 2022Observed: 24.54 ft at 9:30PM May 19, 2022Observed: 24.56 ft at 9:45PM May 19, 2022Observed: 24.59 ft at 10:00PM May 19, 2022Observed: 24.6 ft at 10:15PM May 19, 2022Observed: 24.6 ft at 10:30PM May 19, 2022Observed: 24.64 ft at 10:45PM May 19, 2022Observed: 24.61 ft at 11:00PM May 19, 2022Observed: 24.64 ft at 11:15PM May 19, 2022Observed: 24.64 ft at 11:30PM May 19, 2022Observed: 24.63 ft at 11:45PM May 19, 2022Observed: 24.62 ft at 12:00AM May 20, 2022Observed: 24.58 ft at 12:15AM May 20, 2022Observed: 24.58 ft at 12:30AM May 20, 2022Observed: 24.51 ft at 12:45AM May 20, 2022Observed: 24.48 ft at 1:00AM May 20, 2022Observed: 24.43 ft at 1:15AM May 20, 2022Observed: 24.32 ft at 1:30AM May 20, 2022Observed: 24.27 ft at 1:45AM May 20, 2022Observed: 24.23 ft at 2:00AM May 20, 2022Observed: 24.11 ft at 2:15AM May 20, 2022Observed: 24.07 ft at 2:30AM May 20, 2022Observed: 23.99 ft at 2:45AM May 20, 2022Observed: 23.92 ft at 3:00AM May 20, 2022Observed: 23.83 ft at 3:15AM May 20, 2022Observed: 23.76 ft at 3:30AM May 20, 2022Observed: 23.71 ft at 3:45AM May 20, 2022Observed: 23.59 ft at 4:00AM May 20, 2022Observed: 23.56 ft at 4:15AM May 20, 2022Observed: 23.44 ft at 4:30AM May 20, 2022Observed: 23.37 ft at 4:45AM May 20, 2022Observed: 23.3 ft at 5:00AM May 20, 2022Observed: 23.18 ft at 5:15AM May 20, 2022Observed: 23.15 ft at 5:30AM May 20, 2022Observed: 23.11 ft at 5:45AM May 20, 2022Observed: 22.98 ft at 6:00AM May 20, 2022Observed: 22.94 ft at 6:15AM May 20, 2022Observed: 22.85 ft at 6:30AM May 20, 2022Observed: 22.77 ft at 6:45AM May 20, 2022Observed: 22.71 ft at 7:00AM May 20, 2022Observed: 22.64 ft at 7:15AM May 20, 2022Observed: 22.53 ft at 7:30AM May 20, 2022Observed: 22.48 ft at 7:45AM May 20, 2022Observed: 22.41 ft at 8:00AM May 20, 2022Observed: 22.34 ft at 8:15AM May 20, 2022Observed: 22.28 ft at 8:30AM May 20, 2022Observed: 22.22 ft at 8:45AM May 20, 2022Observed: 22.16 ft at 9:00AM May 20, 2022Observed: 22.13 ft at 9:15AM May 20, 2022Observed: 22.14 ft at 9:30AM May 20, 2022Observed: 22.1 ft at 9:45AM May 20, 2022Observed: 22.13 ft at 10:00AM May 20, 2022Observed: 22.16 ft at 10:15AM May 20, 2022Observed: 22.2 ft at 10:30AM May 20, 2022Observed: 22.27 ft at 10:45AM May 20, 2022Observed: 22.33 ft at 11:00AM May 20, 2022Observed: 22.41 ft at 11:15AM May 20, 2022Observed: 22.5 ft at 11:30AM May 20, 2022Observed: 22.62 ft at 11:45AM May 20, 2022Observed: 22.68 ft at 12:00PM May 20, 2022Observed: 22.79 ft at 12:15PM May 20, 2022Observed: 22.9 ft at 12:30PM May 20, 2022Observed: 22.98 ft at 12:45PM May 20, 2022Observed: 23.06 ft at 1:00PM May 20, 2022Observed: 23.17 ft at 1:15PM May 20, 2022Observed: 23.22 ft at 1:30PM May 20, 2022Observed: 23.31 ft at 1:45PM May 20, 2022Observed: 23.4 ft at 2:00PM May 20, 2022Observed: 23.45 ft at 2:15PM May 20, 2022Observed: 23.53 ft at 2:30PM May 20, 2022Observed: 23.57 ft at 2:45PM May 20, 2022Observed: 23.64 ft at 3:00PM May 20, 2022Observed: 23.74 ft at 3:15PM May 20, 2022Observed: 23.79 ft at 3:30PM May 20, 2022Observed: 23.81 ft at 3:45PM May 20, 2022Observed: 23.87 ft at 4:00PM May 20, 2022Observed: 23.92 ft at 4:15PM May 20, 2022Observed: 23.94 ft at 4:30PM May 20, 2022Observed: 24.04 ft at 4:45PM May 20, 2022Observed: 24.08 ft at 5:00PM May 20, 2022Observed: 24.1 ft at 5:15PM May 20, 2022Observed: 24.13 ft at 5:30PM May 20, 2022Observed: 24.16 ft at 5:45PM May 20, 2022Observed: 24.21 ft at 6:00PM May 20, 2022Observed: 24.23 ft at 6:15PM May 20, 2022Observed: 24.27 ft at 6:30PM May 20, 2022Observed: 24.31 ft at 6:45PM May 20, 2022Observed: 24.38 ft at 7:00PM May 20, 2022Observed: 24.36 ft at 7:15PM May 20, 2022Observed: 24.41 ft at 7:30PM May 20, 2022Observed: 24.44 ft at 7:45PM May 20, 2022Observed: 24.47 ft at 8:00PM May 20, 2022Observed: 24.48 ft at 8:15PM May 20, 2022Observed: 24.52 ft at 8:30PM May 20, 2022Observed: 24.54 ft at 8:45PM May 20, 2022Observed: 24.57 ft at 9:00PM May 20, 2022Observed: 24.58 ft at 9:15PM May 20, 2022Observed: 24.73 ft at 10:30PM May 20, 2022Observed: 24.71 ft at 10:45PM May 20, 2022Observed: 24.72 ft at 11:00PM May 20, 2022Observed: 24.74 ft at 11:15PM May 20, 2022Observed: 24.75 ft at 11:30PM May 20, 2022Observed: 24.75 ft at 11:45PM May 20, 2022Observed: 24.73 ft at 12:00AM May 21, 2022Observed: 24.7 ft at 12:15AM May 21, 2022Observed: 24.68 ft at 12:30AM May 21, 2022Observed: 24.64 ft at 12:45AM May 21, 2022Observed: 24.52 ft at 1:00AM May 21, 2022Observed: 24.46 ft at 1:15AM May 21, 2022Observed: 24.4 ft at 1:30AM May 21, 2022Observed: 24.32 ft at 1:45AM May 21, 2022Observed: 24.3 ft at 2:00AM May 21, 2022Observed: 24.2 ft at 2:15AM May 21, 2022Observed: 24.11 ft at 2:30AM May 21, 2022Observed: 24.02 ft at 2:45AM May 21, 2022Observed: 23.93 ft at 3:00AM May 21, 2022Observed: 23.93 ft at 3:01AM May 21, 2022Observed: 23.89 ft at 3:15AM May 21, 2022Observed: 23.89 ft at 3:16AM May 21, 2022Observed: 23.8 ft at 3:30AM May 21, 2022Observed: 23.8 ft at 3:31AM May 21, 2022Observed: 23.71 ft at 3:45AM May 21, 2022Observed: 23.63 ft at 4:00AM May 21, 2022Observed: 23.55 ft at 4:15AM May 21, 2022Observed: 23.46 ft at 4:30AM May 21, 2022Observed: 23.43 ft at 4:45AM May 21, 2022Observed: 23.33 ft at 5:00AM May 21, 2022Observed: 23.23 ft at 5:15AM May 21, 2022Observed: 23.16 ft at 5:30AM May 21, 2022Observed: 23.12 ft at 5:45AM May 21, 2022Observed: 23.03 ft at 6:00AM May 21, 2022Observed: 22.93 ft at 6:15AM May 21, 2022Observed: 22.9 ft at 6:30AM May 21, 2022Observed: 22.78 ft at 6:45AM May 21, 2022Observed: 22.69 ft at 7:00AM May 21, 2022Observed: 22.65 ft at 7:15AM May 21, 2022Observed: 22.56 ft at 7:30AM May 21, 2022Observed: 22.48 ft at 7:45AM May 21, 2022Observed: 22.46 ft at 8:00AM May 21, 2022Observed: 22.37 ft at 8:15AM May 21, 2022Observed: 22.29 ft at 8:30AM May 21, 2022Observed: 22.23 ft at 8:45AM May 21, 2022Observed: 22.18 ft at 9:00AM May 21, 2022Observed: 22.18 ft at 9:15AM May 21, 2022Observed: 22.16 ft at 9:30AM May 21, 2022Observed: 22.15 ft at 9:45AM May 21, 2022Observed: 22.2 ft at 10:00AM May 21, 2022Observed: 22.21 ft at 10:15AM May 21, 2022Observed: 22.32 ft at 10:30AM May 21, 2022Observed: 22.34 ft at 10:45AM May 21, 2022Observed: 22.38 ft at 11:00AM May 21, 2022Observed: 22.49 ft at 11:15AM May 21, 2022Observed: 22.56 ft at 11:30AM May 21, 2022Observed: 22.68 ft at 11:45AM May 21, 2022Observed: 22.75 ft at 12:00PM May 21, 2022Observed: 22.86 ft at 12:15PM May 21, 2022Observed: 22.93 ft at 12:30PM May 21, 2022Observed: 23.05 ft at 12:45PM May 21, 2022Observed: 23.1 ft at 1:00PM May 21, 2022Observed: 23.2 ft at 1:15PM May 21, 2022Observed: 23.26 ft at 1:30PM May 21, 2022Observed: 23.35 ft at 1:45PM May 21, 2022Observed: 23.39 ft at 2:00PM May 21, 2022Observed: 23.51 ft at 2:15PM May 21, 2022Observed: 23.53 ft at 2:30PM May 21, 2022Observed: 23.62 ft at 2:45PM May 21, 2022Observed: 23.65 ft at 3:00PM May 21, 2022Observed: 23.72 ft at 3:15PM May 21, 2022Observed: 23.82 ft at 3:30PM May 21, 2022Observed: 23.82 ft at 3:45PM May 21, 2022Observed: 23.9 ft at 4:00PM May 21, 2022Observed: 23.91 ft at 4:15PM May 21, 2022Observed: 23.97 ft at 4:30PM May 21, 2022Observed: 24.03 ft at 4:45PM May 21, 2022Observed: 24.11 ft at 5:00PM May 21, 2022Observed: 24.1 ft at 5:15PM May 21, 2022Observed: 24.17 ft at 5:30PM May 21, 2022Observed: 24.18 ft at 5:45PM May 21, 2022Observed: 24.25 ft at 6:00PM May 21, 2022Observed: 24.26 ft at 6:15PM May 21, 2022Observed: 24.29 ft at 6:30PM May 21, 2022Observed: 24.35 ft at 6:45PM May 21, 2022Observed: 24.35 ft at 7:00PM May 21, 2022Observed: 24.35 ft at 7:01PM May 21, 2022Observed: 24.4 ft at 7:15PM May 21, 2022Observed: 24.4 ft at 7:16PM May 21, 2022Observed: 24.44 ft at 7:30PM May 21, 2022Observed: 24.44 ft at 7:31PM May 21, 2022Observed: 24.46 ft at 7:45PM May 21, 2022Observed: 24.47 ft at 8:00PM May 21, 2022Observed: 24.51 ft at 8:15PM May 21, 2022Observed: 24.51 ft at 8:30PM May 21, 2022Observed: 24.56 ft at 8:45PM May 21, 2022Observed: 24.6 ft at 9:00PM May 21, 2022Observed: 24.65 ft at 9:15PM May 21, 2022Observed: 24.63 ft at 9:30PM May 21, 2022Observed: 24.66 ft at 9:45PM May 21, 2022Observed: 24.67 ft at 10:00PM May 21, 2022Observed: 24.74 ft at 10:15PM May 21, 2022Observed: 24.75 ft at 10:30PM May 21, 2022Observed: 24.73 ft at 10:45PM May 21, 2022Observed: 24.75 ft at 11:00PM May 21, 2022Observed: 24.76 ft at 11:15PM May 21, 2022Observed: 24.83 ft at 11:30PM May 21, 2022Observed: 24.81 ft at 11:45PM May 21, 2022Observed: 24.78 ft at 12:00AM May 22, 2022Observed: 24.74 ft at 12:15AM May 22, 2022Observed: 24.7 ft at 12:30AM May 22, 2022Observed: 24.64 ft at 12:45AM May 22, 2022Observed: 24.6 ft at 1:00AM May 22, 2022Observed: 24.53 ft at 1:15AM May 22, 2022Observed: 24.47 ft at 1:30AM May 22, 2022Observed: 24.39 ft at 1:45AM May 22, 2022Observed: 24.28 ft at 2:00AM May 22, 2022Observed: 24.23 ft at 2:15AM May 22, 2022Observed: 24.17 ft at 2:30AM May 22, 2022Observed: 24.1 ft at 2:45AM May 22, 2022Observed: 23.98 ft at 3:00AM May 22, 2022Observed: 23.98 ft at 3:01AM May 22, 2022Observed: 23.9 ft at 3:15AM May 22, 2022Observed: 23.9 ft at 3:16AM May 22, 2022Observed: 23.82 ft at 3:30AM May 22, 2022Observed: 23.82 ft at 3:31AM May 22, 2022Observed: 23.75 ft at 3:45AM May 22, 2022Observed: 23.66 ft at 4:00AM May 22, 2022Observed: 23.58 ft at 4:15AM May 22, 2022Observed: 23.51 ft at 4:30AM May 22, 2022Observed: 23.44 ft at 4:45AM May 22, 2022Observed: 23.39 ft at 5:00AM May 22, 2022Observed: 23.27 ft at 5:15AM May 22, 2022Observed: 23.2 ft at 5:30AM May 22, 2022Observed: 23.14 ft at 5:45AM May 22, 2022Observed: 23.04 ft at 6:00AM May 22, 2022Observed: 22.98 ft at 6:15AM May 22, 2022Observed: 22.93 ft at 6:30AM May 22, 2022Observed: 22.82 ft at 6:45AM May 22, 2022Observed: 22.75 ft at 7:00AM May 22, 2022Observed: 22.71 ft at 7:15AM May 22, 2022Observed: 22.59 ft at 7:30AM May 22, 2022Observed: 22.53 ft at 7:45AM May 22, 2022Observed: 22.43 ft at 8:00AM May 22, 2022Observed: 22.39 ft at 8:15AM May 22, 2022Observed: 22.36 ft at 8:30AM May 22, 2022Observed: 22.27 ft at 8:45AM May 22, 2022Observed: 22.25 ft at 9:00AM May 22, 2022Observed: 22.2 ft at 9:15AM May 22, 2022Observed: 22.21 ft at 9:30AM May 22, 2022Observed: 22.22 ft at 9:45AM May 22, 2022Observed: 22.18 ft at 10:00AM May 22, 2022Observed: 22.21 ft at 10:15AM May 22, 2022Observed: 22.22 ft at 10:30AM May 22, 2022Observed: 22.34 ft at 10:45AM May 22, 2022Observed: 22.36 ft at 11:00AM May 22, 2022Observed: 22.36 ft at 11:01AM May 22, 2022Observed: 22.42 ft at 11:15AM May 22, 2022Observed: 22.42 ft at 11:16AM May 22, 2022Observed: 22.49 ft at 11:30AM May 22, 2022Observed: 22.49 ft at 11:31AM May 22, 2022Observed: 22.56 ft at 11:45AM May 22, 2022Observed: 22.7 ft at 12:00PM May 22, 2022Observed: 22.78 ft at 12:15PM May 22, 2022Observed: 22.86 ft at 12:30PM May 22, 2022Observed: 22.93 ft at 12:45PM May 22, 2022Observed: 23.03 ft at 1:00PM May 22, 2022Observed: 23.1 ft at 1:15PM May 22, 2022Observed: 23.17 ft at 1:30PM May 22, 2022Observed: 23.24 ft at 1:45PM May 22, 2022Observed: 23.29 ft at 2:00PM May 22, 2022Observed: 23.35 ft at 2:15PM May 22, 2022Observed: 23.36 ft at 2:30PM May 22, 2022Observed: 23.48 ft at 2:45PM May 22, 2022Observed: 23.53 ft at 3:00PM May 22, 2022Observed: 23.57 ft at 3:15PM May 22, 2022Observed: 23.61 ft at 3:30PM May 22, 2022Observed: 23.66 ft at 3:45PM May 22, 2022Observed: 23.73 ft at 4:00PM May 22, 2022Observed: 23.79 ft at 4:15PM May 22, 2022Observed: 23.86 ft at 4:30PM May 22, 2022Observed: 23.87 ft at 4:45PM May 22, 2022Observed: 23.92 ft at 5:00PM May 22, 2022Observed: 23.99 ft at 5:15PM May 22, 2022Observed: 24.02 ft at 5:30PM May 22, 2022Observed: 24.13 ft at 5:45PM May 22, 2022Observed: 24.17 ft at 6:00PM May 22, 2022Observed: 24.22 ft at 6:15PM May 22, 2022Observed: 24.28 ft at 6:30PM May 22, 2022Observed: 24.33 ft at 6:45PM May 22, 2022Observed: 24.43 ft at 7:00PM May 22, 2022Observed: 24.43 ft at 7:01PM May 22, 2022Observed: 24.46 ft at 7:15PM May 22, 2022Observed: 24.46 ft at 7:16PM May 22, 2022Observed: 24.5 ft at 7:30PM May 22, 2022Observed: 24.5 ft at 7:31PM May 22, 2022Observed: 24.55 ft at 7:45PM May 22, 2022Observed: 24.63 ft at 8:00PM May 22, 2022Observed: 24.66 ft at 8:15PM May 22, 2022Observed: 24.69 ft at 8:30PM May 22, 2022Observed: 24.76 ft at 8:45PM May 22, 2022Observed: 24.79 ft at 9:00PM May 22, 2022Observed: 24.87 ft at 9:15PM May 22, 2022Observed: 24.88 ft at 9:30PM May 22, 2022Observed: 24.9 ft at 9:45PM May 22, 2022Observed: 24.98 ft at 10:00PM May 22, 2022Observed: 24.99 ft at 10:15PM May 22, 2022Observed: 25 ft at 10:30PM May 22, 2022Observed: 25.02 ft at 10:45PM May 22, 2022Observed: 25.03 ft at 11:00PM May 22, 2022Observed: 25.05 ft at 11:15PM May 22, 2022Observed: 25.05 ft at 11:30PM May 22, 2022Observed: 25.03 ft at 11:45PM May 22, 2022Observed: 24.99 ft at 12:00AM May 23, 2022Observed: 24.95 ft at 12:15AM May 23, 2022Observed: 24.91 ft at 12:30AM May 23, 2022Observed: 24.85 ft at 12:45AM May 23, 2022Observed: 24.79 ft at 1:00AM May 23, 2022Observed: 24.75 ft at 1:15AM May 23, 2022Observed: 24.64 ft at 1:30AM May 23, 2022Observed: 24.57 ft at 1:45AM May 23, 2022Observed: 24.52 ft at 2:00AM May 23, 2022Observed: 24.4 ft at 2:15AM May 23, 2022Observed: 24.32 ft at 2:30AM May 23, 2022Observed: 24.25 ft at 2:45AM May 23, 2022Observed: 24.18 ft at 3:00AM May 23, 2022Observed: 24.11 ft at 3:15AM May 23, 2022Observed: 23.98 ft at 3:30AM May 23, 2022Observed: 23.91 ft at 3:45AM May 23, 2022Observed: 23.84 ft at 4:00AM May 23, 2022Observed: 23.79 ft at 4:15AM May 23, 2022Observed: 23.66 ft at 4:30AM May 23, 2022Observed: 23.59 ft at 4:45AM May 23, 2022Observed: 23.52 ft at 5:00AM May 23, 2022Observed: 23.47 ft at 5:15AM May 23, 2022Observed: 23.35 ft at 5:30AM May 23, 2022Observed: 23.28 ft at 5:45AM May 23, 2022Observed: 23.21 ft at 6:00AM May 23, 2022Observed: 23.15 ft at 6:15AM May 23, 2022Observed: 23.04 ft at 6:30AM May 23, 2022Observed: 22.97 ft at 6:45AM May 23, 2022Observed: 22.91 ft at 7:00AM May 23, 2022Observed: 22.85 ft at 7:15AM May 23, 2022Observed: 22.74 ft at 7:30AM May 23, 2022Observed: 22.67 ft at 7:45AM May 23, 2022Observed: 22.62 ft at 8:00AM May 23, 2022Observed: 22.52 ft at 8:15AM May 23, 2022Observed: 22.47 ft at 8:30AM May 23, 2022Observed: 22.43 ft at 8:45AM May 23, 2022Observed: 22.42 ft at 9:00AM May 23, 2022Observed: 22.36 ft at 9:15AM May 23, 2022Observed: 22.37 ft at 9:30AM May 23, 2022Observed: 22.39 ft at 9:45AM May 23, 2022Observed: 22.43 ft at 10:00AM May 23, 2022Observed: 22.48 ft at 10:15AM May 23, 2022Observed: 22.52 ft at 10:30AM May 23, 2022Observed: 22.58 ft at 10:45AM May 23, 2022Observed: 22.63 ft at 11:00AM May 23, 2022Observed: 22.7 ft at 11:15AM May 23, 2022Observed: 22.78 ft at 11:30AM May 23, 2022Observed: 22.85 ft at 11:45AM May 23, 2022Observed: 22.94 ft at 12:00PM May 23, 2022Observed: 23.02 ft at 12:15PM May 23, 2022Observed: 23.09 ft at 12:30PM May 23, 2022Observed: 23.16 ft at 12:45PM May 23, 2022Observed: 23.24 ft at 1:00PM May 23, 2022Observed: 23.31 ft at 1:15PM May 23, 2022Observed: 23.36 ft at 1:30PM May 23, 2022Observed: 23.43 ft at 1:45PM May 23, 2022Observed: 23.5 ft at 2:00PM May 23, 2022Observed: 23.57 ft at 2:15PM May 23, 2022Observed: 23.64 ft at 2:30PM May 23, 2022Observed: 23.7 ft at 2:45PM May 23, 2022Observed: 23.74 ft at 3:00PM May 23, 2022Observed: 23.79 ft at 3:15PM May 23, 2022Observed: 23.85 ft at 3:30PM May 23, 2022Observed: 23.91 ft at 3:45PM May 23, 2022Observed: 23.95 ft at 4:00PM May 23, 2022Observed: 24.01 ft at 4:15PM May 23, 2022Observed: 24.05 ft at 4:30PM May 23, 2022Observed: 24.14 ft at 4:45PM May 23, 2022Observed: 24.18 ft at 5:00PM May 23, 2022Observed: 24.22 ft at 5:15PM May 23, 2022Observed: 24.27 ft at 5:30PM May 23, 2022Observed: 24.37 ft at 5:45PM May 23, 2022Observed: 24.4 ft at 6:00PM May 23, 2022Observed: 24.44 ft at 6:15PM May 23, 2022Observed: 24.49 ft at 6:30PM May 23, 2022Observed: 24.53 ft at 6:45PM May 23, 2022Observed: 24.62 ft at 7:00PM May 23, 2022Observed: 24.64 ft at 7:15PM May 23, 2022Observed: 24.69 ft at 7:30PM May 23, 2022Observed: 24.72 ft at 7:45PM May 23, 2022Observed: 24.81 ft at 8:00PM May 23, 2022Observed: 24.84 ft at 8:15PM May 23, 2022Observed: 24.87 ft at 8:30PM May 23, 2022Observed: 24.9 ft at 8:45PM May 23, 2022Observed: 24.98 ft at 9:00PM May 23, 2022Observed: 24.99 ft at 9:15PM May 23, 2022Observed: 25.02 ft at 9:30PM May 23, 2022Observed: 25.04 ft at 9:45PM May 23, 2022Observed: 25.09 ft at 10:00PM May 23, 2022Observed: 25.1 ft at 10:15PM May 23, 2022Observed: 25.11 ft at 10:30PM May 23, 2022Observed: 25.12 ft at 10:45PM May 23, 2022Observed: 25.16 ft at 11:00PM May 23, 2022Observed: 25.16 ft at 11:15PM May 23, 2022Observed: 25.17 ft at 11:30PM May 23, 2022Observed: 25.23 ft at 11:45PM May 23, 2022Observed: 25.21 ft at 12:00AM May 24, 2022Observed: 25.2 ft at 12:15AM May 24, 2022Observed: 25.18 ft at 12:30AM May 24, 2022Observed: 25.15 ft at 12:45AM May 24, 2022Observed: 25.11 ft at 1:00AM May 24, 2022Observed: 25.04 ft at 1:15AM May 24, 2022Observed: 25.02 ft at 1:30AM May 24, 2022Observed: 25 ft at 1:45AM May 24, 2022Observed: 24.91 ft at 2:00AM May 24, 2022Observed: 24.84 ft at 2:15AM May 24, 2022Observed: 24.78 ft at 2:30AM May 24, 2022Observed: 24.72 ft at 2:45AM May 24, 2022Observed: 24.65 ft at 3:00AM May 24, 2022Observed: 24.65 ft at 3:01AM May 24, 2022Observed: 24.58 ft at 3:15AM May 24, 2022Observed: 24.58 ft at 3:16AM May 24, 2022Observed: 24.53 ft at 3:30AM May 24, 2022Observed: 24.53 ft at 3:31AM May 24, 2022Observed: 24.43 ft at 3:45AM May 24, 2022Observed: 24.36 ft at 4:00AM May 24, 2022Observed: 24.3 ft at 4:15AM May 24, 2022Observed: 24.26 ft at 4:30AM May 24, 2022Observed: 24.2 ft at 4:45AM May 24, 2022Observed: 24.13 ft at 5:00AM May 24, 2022Observed: 24.01 ft at 5:15AM May 24, 2022Observed: 23.96 ft at 5:30AM May 24, 2022Observed: 23.9 ft at 5:45AM May 24, 2022Observed: 23.84 ft at 6:00AM May 24, 2022Observed: 23.75 ft at 6:15AM May 24, 2022Observed: 23.69 ft at 6:30AM May 24, 2022Observed: 23.64 ft at 6:45AM May 24, 2022Observed: 23.58 ft at 7:00AM May 24, 2022Observed: 23.54 ft at 7:15AM May 24, 2022Observed: 23.43 ft at 7:30AM May 24, 2022Observed: 23.39 ft at 7:45AM May 24, 2022Observed: 23.36 ft at 8:00AM May 24, 2022Observed: 23.33 ft at 8:15AM May 24, 2022Observed: 23.31 ft at 8:30AM May 24, 2022Observed: 23.21 ft at 8:45AM May 24, 2022Observed: 23.25 ft at 9:00AM May 24, 2022Observed: 23.27 ft at 9:15AM May 24, 2022Observed: 23.3 ft at 9:30AM May 24, 2022Observed: 23.28 ft at 9:45AM May 24, 2022Observed: 23.31 ft at 10:00AM May 24, 2022Observed: 23.35 ft at 10:15AM May 24, 2022Observed: 23.38 ft at 10:30AM May 24, 2022Observed: 23.42 ft at 10:45AM May 24, 2022Observed: 23.46 ft at 11:00AM May 24, 2022Observed: 23.51 ft at 11:15AM May 24, 2022Observed: 23.51 ft at 11:16AM May 24, 2022Observed: 23.55 ft at 11:30AM May 24, 2022Observed: 23.55 ft at 11:31AM May 24, 2022Observed: 23.6 ft at 11:45AM May 24, 2022Observed: 23.6 ft at 11:46AM May 24, 2022Observed: 23.64 ft at 12:00PM May 24, 2022Observed: 23.68 ft at 12:15PM May 24, 2022Observed: 23.77 ft at 12:30PM May 24, 2022Observed: 23.81 ft at 12:45PM May 24, 2022Observed: 23.84 ft at 1:00PM May 24, 2022Observed: 23.88 ft at 1:15PM May 24, 2022Observed: 23.91 ft at 1:30PM May 24, 2022Observed: 23.94 ft at 1:45PM May 24, 2022Observed: 24.03 ft at 2:00PM May 24, 2022Observed: 24.05 ft at 2:15PM May 24, 2022Observed: 24.08 ft at 2:30PM May 24, 2022Observed: 24.16 ft at 2:45PM May 24, 2022Observed: 24.16 ft at 3:00PM May 24, 2022Observed: 24.19 ft at 3:15PM May 24, 2022Observed: 24.26 ft at 3:30PM May 24, 2022Observed: 24.27 ft at 3:45PM May 24, 2022Observed: 24.36 ft at 4:00PM May 24, 2022Observed: 24.37 ft at 4:15PM May 24, 2022Observed: 24.4 ft at 4:30PM May 24, 2022Observed: 24.47 ft at 4:45PM May 24, 2022Observed: 24.49 ft at 5:00PM May 24, 2022Observed: 24.52 ft at 5:15PM May 24, 2022Observed: 24.59 ft at 5:30PM May 24, 2022Observed: 24.62 ft at 5:45PM May 24, 2022Observed: 24.65 ft at 6:00PM May 24, 2022Observed: 24.73 ft at 6:15PM May 24, 2022Observed: 24.75 ft at 6:30PM May 24, 2022Observed: 24.78 ft at 6:45PM May 24, 2022Observed: 24.87 ft at 7:00PM May 24, 2022Observed: 24.9 ft at 7:15PM May 24, 2022Observed: 24.9 ft at 7:16PM May 24, 2022Observed: 24.93 ft at 7:30PM May 24, 2022Observed: 24.93 ft at 7:31PM May 24, 2022Observed: 24.95 ft at 7:45PM May 24, 2022Observed: 24.95 ft at 7:46PM May 24, 2022Observed: 25.01 ft at 8:00PM May 24, 2022Observed: 25.04 ft at 8:15PM May 24, 2022Observed: 25.05 ft at 8:30PM May 24, 2022Observed: 25.12 ft at 8:45PM May 24, 2022Observed: 25.14 ft at 9:00PM May 24, 2022Observed: 25.15 ft at 9:15PM May 24, 2022Observed: 25.18 ft at 9:30PM May 24, 2022Observed: 25.23 ft at 9:45PM May 24, 2022Observed: 25.24 ft at 10:00PM May 24, 2022Observed: 25.25 ft at 10:15PM May 24, 2022Observed: 25.26 ft at 10:30PM May 24, 2022Observed: 25.27 ft at 10:45PM May 24, 2022Highest Observation: 25.32 ft at 11:00PM May 24, 2022Observed: 25.3 ft at 11:15PM May 24, 2022Observed: 25.28 ft at 11:30PM May 24, 2022Observed: 25.25 ft at 11:45PM May 24, 2022Observed: 25.22 ft at 12:00AM May 25, 2022Observed: 25.21 ft at 12:15AM May 25, 2022Observed: 25.16 ft at 12:30AM May 25, 2022Observed: 25.09 ft at 12:45AM May 25, 2022Observed: 25.03 ft at 1:00AM May 25, 2022Observed: 24.96 ft at 1:15AM May 25, 2022Observed: 24.89 ft at 1:30AM May 25, 2022Observed: 24.82 ft at 1:45AM May 25, 2022Observed: 24.74 ft at 2:00AM May 25, 2022Observed: 24.67 ft at 2:15AM May 25, 2022Observed: 24.6 ft at 2:30AM May 25, 2022Observed: 24.53 ft at 2:45AM May 25, 2022Observed: 24.46 ft at 3:00AM May 25, 2022Observed: 24.39 ft at 3:15AM May 25, 2022Observed: 24.39 ft at 3:16AM May 25, 2022Observed: 24.32 ft at 3:30AM May 25, 2022Observed: 24.32 ft at 3:31AM May 25, 2022Observed: 24.26 ft at 3:45AM May 25, 2022Observed: 24.26 ft at 3:46AM May 25, 2022Observed: 24.19 ft at 4:00AM May 25, 2022Observed: 24.12 ft at 4:15AM May 25, 2022Observed: 24.05 ft at 4:30AM May 25, 2022Observed: 23.98 ft at 4:45AM May 25, 2022Observed: 23.93 ft at 5:00AM May 25, 2022Observed: 23.86 ft at 5:15AM May 25, 2022Observed: 23.79 ft at 5:30AM May 25, 2022Observed: 23.73 ft at 5:45AM May 25, 2022Observed: 23.67 ft at 6:00AM May 25, 2022Observed: 23.61 ft at 6:15AM May 25, 2022Observed: 23.55 ft at 6:30AM May 25, 2022Observed: 23.5 ft at 6:45AM May 25, 2022Observed: 23.45 ft at 7:00AM May 25, 2022Observed: 23.38 ft at 7:15AM May 25, 2022Observed: 23.31 ft at 7:30AM May 25, 2022Observed: 23.26 ft at 7:45AM May 25, 2022Observed: 23.22 ft at 8:00AM May 25, 2022Observed: 23.18 ft at 8:15AM May 25, 2022Observed: 23.15 ft at 8:30AM May 25, 2022Observed: 23.08 ft at 8:45AM May 25, 2022Observed: 23.07 ft at 9:00AM May 25, 2022Observed: 23.08 ft at 9:15AM May 25, 2022Observed: 23.05 ft at 9:30AM May 25, 2022Observed: 23.07 ft at 9:45AM May 25, 2022Observed: 23.08 ft at 10:00AM May 25, 2022Observed: 23.13 ft at 10:15AM May 25, 2022Observed: 23.14 ft at 10:30AM May 25, 2022Observed: 23.16 ft at 10:45AM May 25, 2022Observed: 23.21 ft at 11:00AM May 25, 2022Observed: 23.24 ft at 11:15AM May 25, 2022Observed: 23.24 ft at 11:16AM May 25, 2022Observed: 23.27 ft at 11:30AM May 25, 2022Observed: 23.27 ft at 11:31AM May 25, 2022Observed: 23.36 ft at 11:45AM May 25, 2022Observed: 23.36 ft at 11:46AM May 25, 2022Observed: 23.38 ft at 12:00PM May 25, 2022Observed: 23.42 ft at 12:15PM May 25, 2022Observed: 23.45 ft at 12:30PM May 25, 2022Observed: 23.55 ft at 12:45PM May 25, 2022Observed: 23.57 ft at 1:00PM May 25, 2022Observed: 23.61 ft at 1:15PM May 25, 2022Observed: 23.68 ft at 1:30PM May 25, 2022Observed: 23.69 ft at 1:45PM May 25, 2022Observed: 23.78 ft at 2:00PM May 25, 2022Observed: 23.81 ft at 2:15PM May 25, 2022Observed: 23.84 ft at 2:30PM May 25, 2022Observed: 23.88 ft at 2:45PM May 25, 2022Observed: 23.97 ft at 3:00PM May 25, 2022Observed: 24 ft at 3:15PM May 25, 2022Observed: 24.04 ft at 3:30PM May 25, 2022Observed: 24.08 ft at 3:45PM May 25, 2022Observed: 24.13 ft at 4:00PM May 25, 2022Observed: 24.17 ft at 4:15PM May 25, 2022Observed: 24.21 ft at 4:30PM May 25, 2022Observed: 24.25 ft at 4:45PM May 25, 2022Observed: 24.29 ft at 5:00PM May 25, 2022Observed: 24.33 ft at 5:15PM May 25, 2022Observed: 24.43 ft at 5:30PM May 25, 2022Observed: 24.45 ft at 5:45PM May 25, 2022Observed: 24.48 ft at 6:00PM May 25, 2022Observed: 24.56 ft at 6:15PM May 25, 2022Observed: 24.59 ft at 6:30PM May 25, 2022Observed: 24.63 ft at 6:45PM May 25, 2022Observed: 24.71 ft at 7:00PM May 25, 2022Observed: 24.72 ft at 7:15PM May 25, 2022Observed: 24.72 ft at 7:16PM May 25, 2022Observed: 24.75 ft at 7:30PM May 25, 2022Observed: 24.75 ft at 7:31PM May 25, 2022Observed: 24.79 ft at 7:45PM May 25, 2022Observed: 24.79 ft at 7:46PM May 25, 2022Observed: 24.87 ft at 8:00PM May 25, 2022Observed: 24.89 ft at 8:15PM May 25, 2022Observed: 24.92 ft at 8:30PM May 25, 2022Observed: 25 ft at 8:45PM May 25, 2022Observed: 25.01 ft at 9:00PM May 25, 2022Observed: 25.03 ft at 9:15PM May 25, 2022Observed: 25.11 ft at 9:30PM May 25, 2022Observed: 25.1 ft at 9:45PM May 25, 2022Observed: 25.11 ft at 10:00PM May 25, 2022Observed: 25.16 ft at 10:15PM May 25, 2022Observed: 25.16 ft at 10:30PM May 25, 2022Observed: 25.16 ft at 10:45PM May 25, 2022Observed: 25.16 ft at 11:00PM May 25, 2022Observed: 25.21 ft at 11:15PM May 25, 2022Observed: 25.2 ft at 11:30PM May 25, 2022Observed: 25.17 ft at 11:45PM May 25, 2022Observed: 25.13 ft at 12:00AM May 26, 2022Observed: 25.08 ft at 12:15AM May 26, 2022Observed: 25.03 ft at 12:30AM May 26, 2022Observed: 24.98 ft at 12:45AM May 26, 2022Observed: 24.92 ft at 1:00AM May 26, 2022Observed: 24.87 ft at 1:15AM May 26, 2022Observed: 24.8 ft at 1:30AM May 26, 2022Observed: 24.74 ft at 1:45AM May 26, 2022Observed: 24.68 ft at 2:00AM May 26, 2022Observed: 24.62 ft at 2:15AM May 26, 2022Observed: 24.5 ft at 2:30AM May 26, 2022Observed: 24.43 ft at 2:45AM May 26, 2022Observed: 24.36 ft at 3:00AM May 26, 2022Observed: 24.29 ft at 3:15AM May 26, 2022Observed: 24.29 ft at 3:16AM May 26, 2022Observed: 24.22 ft at 3:30AM May 26, 2022Observed: 24.22 ft at 3:31AM May 26, 2022Observed: 24.16 ft at 3:45AM May 26, 2022Observed: 24.16 ft at 3:46AM May 26, 2022Observed: 24.09 ft at 4:00AM May 26, 2022Observed: 24.02 ft at 4:15AM May 26, 2022Observed: 23.95 ft at 4:30AM May 26, 2022Observed: 23.89 ft at 4:45AM May 26, 2022Observed: 23.82 ft at 5:00AM May 26, 2022Observed: 23.76 ft at 5:15AM May 26, 2022Observed: 23.7 ft at 5:30AM May 26, 2022Observed: 23.64 ft at 5:45AM May 26, 2022Observed: 23.57 ft at 6:00AM May 26, 2022Observed: 23.51 ft at 6:15AM May 26, 2022Observed: 23.45 ft at 6:30AM May 26, 2022Observed: 23.39 ft at 6:45AM May 26, 2022Observed: 23.34 ft at 7:00AM May 26, 2022Observed: 23.29 ft at 7:15AM May 26, 2022Observed: 23.26 ft at 7:30AM May 26, 2022Observed: 23.22 ft at 7:45AM May 26, 2022Observed: 23.17 ft at 8:00AM May 26, 2022Observed: 23.14 ft at 8:15AM May 26, 2022Observed: 23.12 ft at 8:30AM May 26, 2022Observed: 23.1 ft at 8:45AM May 26, 2022Observed: 23.1 ft at 9:00AM May 26, 2022Observed: 23.11 ft at 9:15AM May 26, 2022Observed: 23.13 ft at 9:30AM May 26, 2022Observed: 23.16 ft at 9:45AM May 26, 2022Observed: 23.2 ft at 10:00AM May 26, 2022Observed: 23.27 ft at 10:15AM May 26, 2022Observed: 23.3 ft at 10:30AM May 26, 2022Observed: 23.33 ft at 10:45AM May 26, 2022Observed: 23.37 ft at 11:00AM May 26, 2022Observed: 23.45 ft at 11:15AM May 26, 2022Observed: 23.4 ft at 11:16AM May 26, 2022Observed: 23.48 ft at 11:30AM May 26, 2022Observed: 23.48 ft at 11:31AM May 26, 2022Observed: 23.57 ft at 11:45AM May 26, 2022Observed: 23.57 ft at 11:46AM May 26, 2022Observed: 23.59 ft at 12:00PM May 26, 2022Observed: 23.63 ft at 12:15PM May 26, 2022Observed: 23.68 ft at 12:30PM May 26, 2022Observed: 23.78 ft at 12:45PM May 26, 2022Observed: 23.8 ft at 1:00PM May 26, 2022Observed: 23.83 ft at 1:15PM May 26, 2022Observed: 23.87 ft at 1:30PM May 26, 2022Observed: 23.9 ft at 1:45PM May 26, 2022Observed: 23.97 ft at 2:00PM May 26, 2022Observed: 24 ft at 2:15PM May 26, 2022Observed: 24.03 ft at 2:30PM May 26, 2022Observed: 24.07 ft at 2:45PM May 26, 2022Observed: 24.14 ft at 3:00PM May 26, 2022Observed: 24.16 ft at 3:15PM May 26, 2022Observed: 24.2 ft at 3:30PM May 26, 2022Observed: 24.22 ft at 3:45PM May 26, 2022Observed: 24.27 ft at 4:00PM May 26, 2022Observed: 24.3 ft at 4:15PM May 26, 2022Observed: 24.4 ft at 4:30PM May 26, 2022Observed: 24.43 ft at 4:45PM May 26, 2022Observed: 24.46 ft at 5:00PM May 26, 2022Observed: 24.49 ft at 5:15PM May 26, 2022Observed: 24.52 ft at 5:30PM May 26, 2022Observed: 24.6 ft at 5:45PM May 26, 2022Observed: 24.61 ft at 6:00PM May 26, 2022Observed: 24.64 ft at 6:15PM May 26, 2022Observed: 24.7 ft at 6:30PM May 26, 2022Observed: 24.78 ft at 6:45PM May 26, 2022Observed: 24.77 ft at 7:00PM May 26, 2022Observed: 24.85 ft at 7:15PM May 26, 2022Observed: 24.85 ft at 7:16PM May 26, 2022Observed: 24.87 ft at 7:30PM May 26, 2022Observed: 24.87 ft at 7:31PM May 26, 2022Observed: 24.89 ft at 7:45PM May 26, 2022Observed: 24.89 ft at 7:46PM May 26, 2022Observed: 24.95 ft at 8:00PM May 26, 2022Observed: 24.96 ft at 8:15PM May 26, 2022Observed: 25.01 ft at 8:30PM May 26, 2022Observed: 25.08 ft at 8:45PM May 26, 2022Observed: 25.07 ft at 9:00PM May 26, 2022Observed: 25.13 ft at 9:15PM May 26, 2022Observed: 25.13 ft at 9:30PM May 26, 2022Observed: 25.19 ft at 9:45PM May 26, 2022Observed: 25.19 ft at 10:00PM May 26, 2022Observed: 25.25 ft at 10:15PM May 26, 2022Observed: 25.23 ft at 10:30PM May 26, 2022Observed: 25.23 ft at 10:45PM May 26, 2022Observed: 25.26 ft at 11:00PM May 26, 2022Observed: 25.26 ft at 11:15PM May 26, 2022Observed: 25.26 ft at 11:30PM May 26, 2022Observed: 25.26 ft at 11:45PM May 26, 2022Observed: 25.25 ft at 12:00AM May 27, 2022Observed: 25.28 ft at 12:15AM May 27, 2022Observed: 25.24 ft at 12:30AM May 27, 2022Observed: 25.15 ft at 12:45AM May 27, 2022Observed: 25.09 ft at 1:00AM May 27, 2022Observed: 25.04 ft at 1:15AM May 27, 2022Observed: 24.97 ft at 1:30AM May 27, 2022Observed: 24.91 ft at 1:45AM May 27, 2022Observed: 24.89 ft at 2:00AM May 27, 2022Observed: 24.82 ft at 2:15AM May 27, 2022Observed: 24.71 ft at 2:30AM May 27, 2022Observed: 24.69 ft at 2:45AM May 27, 2022Observed: 24.6 ft at 3:00AM May 27, 2022Observed: 24.47 ft at 3:15AM May 27, 2022Observed: 24.47 ft at 3:16AM May 27, 2022Observed: 24.46 ft at 3:30AM May 27, 2022Observed: 24.46 ft at 3:31AM May 27, 2022Observed: 24.39 ft at 3:45AM May 27, 2022Observed: 24.39 ft at 3:46AM May 27, 2022Observed: 24.31 ft at 4:00AM May 27, 2022Observed: 24.24 ft at 4:15AM May 27, 2022Observed: 24.17 ft at 4:30AM May 27, 2022Observed: 24.09 ft at 4:45AM May 27, 2022Observed: 24.01 ft at 5:00AM May 27, 2022Observed: 23.95 ft at 5:15AM May 27, 2022Observed: 23.88 ft at 5:30AM May 27, 2022Observed: 23.86 ft at 5:45AM May 27, 2022Observed: 23.79 ft at 6:00AM May 27, 2022Observed: 23.72 ft at 6:15AM May 27, 2022Observed: 23.64 ft at 6:30AM May 27, 2022Observed: 23.57 ft at 6:45AM May 27, 2022Observed: 23.51 ft at 7:00AM May 27, 2022Observed: 23.44 ft at 7:15AM May 27, 2022Observed: 23.39 ft at 7:30AM May 27, 2022Observed: 23.34 ft at 7:45AM May 27, 2022Observed: 23.3 ft at 8:00AM May 27, 2022Observed: 23.28 ft at 8:15AM May 27, 2022Observed: 23.26 ft at 8:30AM May 27, 2022Observed: 23.26 ft at 8:45AM May 27, 2022Observed: 23.26 ft at 9:00AM May 27, 2022Observed: 23.27 ft at 9:15AM May 27, 2022Observed: 23.28 ft at 9:30AM May 27, 2022Observed: 23.36 ft at 9:45AM May 27, 2022Observed: 23.37 ft at 10:00AM May 27, 2022Observed: 23.39 ft at 10:15AM May 27, 2022Observed: 23.42 ft at 10:30AM May 27, 2022Observed: 23.51 ft at 10:45AM May 27, 2022Observed: 23.52 ft at 11:00AM May 27, 2022Observed: 23.56 ft at 11:15AM May 27, 2022Observed: 23.56 ft at 11:16AM May 27, 2022Observed: 23.6 ft at 11:30AM May 27, 2022Observed: 23.6 ft at 11:31AM May 27, 2022Observed: 23.67 ft at 11:45AM May 27, 2022Observed: 23.67 ft at 11:46AM May 27, 2022Observed: 23.7 ft at 12:00PM May 27, 2022Observed: 23.71 ft at 12:15PM May 27, 2022Observed: 23.8 ft at 12:30PM May 27, 2022Observed: 23.83 ft at 12:45PM May 27, 2022Observed: 23.91 ft at 1:00PM May 27, 2022Observed: 23.92 ft at 1:15PM May 27, 2022Observed: 24.01 ft at 1:30PM May 27, 2022Observed: 24.01 ft at 1:45PM May 27, 2022Observed: 24.04 ft at 2:00PM May 27, 2022Observed: 24.1 ft at 2:15PM May 27, 2022USGS--Water Resources of the United StatesGRWS2(plotting HGIRG) Graph Created (2:50PM May 27, 2022)ObservedLatest observed value: 24.1 ft at 2:15 PM CDT 27-May-2022. Flood Stage is 30 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 Hawarden. Only observed stages are available for this point.

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Upstream Gauge - above Hawarden Upstream Gauge Downstream Gauge Downstream Gauge - at Akron
Flood Categories (in feet)
Major Flood Stage: 23
Moderate Flood Stage: 20
Flood Stage: 15
Action Stage: 13
Low Stage (in feet): -9999

Historic Crests
(1) 27.92 ft on 06/17/2014
(2) 24.90 ft on 05/10/1993
(3) 24.70 ft on 09/27/2010
(4) 24.60 ft on 04/09/1969
(5) 24.20 ft on 06/23/1984
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 27.92 ft on 06/17/2014
(2) 19.40 ft on 05/27/2013
(3) 17.20 ft on 05/10/2012
(4) 20.30 ft on 03/26/2011
(5) 24.70 ft on 09/27/2010
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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Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
23 Water backs up into the park in Hawarden, and some basements and sewers could begin to have problems.
21.5 Iowa Highway 10 begins to flood.
20 Some farm houses on the South Dakota side of the river are isolated by high water.
19 South Dakota Highway 46 begins to flood.
15 Agricultural flooding begins on the South Dakota side of the river.
12 The lowest banks overflow and begin to flood into sloughs.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 42.998333° N, Longitude: 96.498056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 15 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 1147.27 ft 1162.27 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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