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Hydrograph River at a Glance Download
Big Sioux River near Egan Stage (ft)Flow (cfs)Observed: 1509.24 ft at 7:00PM Apr 15, 2024Observed: 1509.24 ft at 7:15PM Apr 15, 2024Observed: 1509.24 ft at 7:30PM Apr 15, 2024Observed: 1509.25 ft at 7:45PM Apr 15, 2024Observed: 1509.25 ft at 8:00PM Apr 15, 2024Observed: 1509.25 ft at 8:15PM Apr 15, 2024Observed: 1509.26 ft at 8:30PM Apr 15, 2024Observed: 1509.26 ft at 8:45PM Apr 15, 2024Observed: 1509.27 ft at 9:00PM Apr 15, 2024Observed: 1509.27 ft at 9:15PM Apr 15, 2024Observed: 1509.26 ft at 9:30PM Apr 15, 2024Observed: 1509.25 ft at 9:45PM Apr 15, 2024Observed: 1509.25 ft at 10:00PM Apr 15, 2024Observed: 1509.22 ft at 10:15PM Apr 15, 2024Observed: 1509.22 ft at 10:30PM Apr 15, 2024Observed: 1509.21 ft at 10:45PM Apr 15, 2024Observed: 1509.19 ft at 11:00PM Apr 15, 2024Observed: 1509.2 ft at 11:15PM Apr 15, 2024Observed: 1509.19 ft at 11:30PM Apr 15, 2024Observed: 1509.2 ft at 11:45PM Apr 15, 2024Observed: 1509.2 ft at 12:00AM Apr 16, 2024Observed: 1509.21 ft at 12:15AM Apr 16, 2024Observed: 1509.21 ft at 12:30AM Apr 16, 2024Observed: 1509.2 ft at 12:45AM Apr 16, 2024Observed: 1509.21 ft at 1:00AM Apr 16, 2024Observed: 1509.2 ft at 1:15AM Apr 16, 2024Observed: 1509.21 ft at 1:30AM Apr 16, 2024Observed: 1509.21 ft at 1:45AM Apr 16, 2024Observed: 1509.21 ft at 2:00AM Apr 16, 2024Observed: 1509.23 ft at 2:15AM Apr 16, 2024Observed: 1509.24 ft at 2:30AM Apr 16, 2024Observed: 1509.21 ft at 2:45AM Apr 16, 2024Observed: 1509.22 ft at 3:00AM Apr 16, 2024Observed: 1509.24 ft at 3:15AM Apr 16, 2024Observed: 1509.23 ft at 3:30AM Apr 16, 2024Observed: 1509.25 ft at 3:45AM Apr 16, 2024Observed: 1509.27 ft at 4:00AM Apr 16, 2024Observed: 1509.27 ft at 4:15AM Apr 16, 2024Observed: 1509.3 ft at 4:30AM Apr 16, 2024Observed: 1509.29 ft at 4:45AM Apr 16, 2024Observed: 1509.3 ft at 5:00AM Apr 16, 2024Observed: 1509.27 ft at 6:15AM Apr 16, 2024Observed: 1509.26 ft at 6:30AM Apr 16, 2024Observed: 1509.29 ft at 6:45AM Apr 16, 2024Observed: 1509.27 ft at 7:00AM Apr 16, 2024Observed: 1509.32 ft at 8:15AM Apr 16, 2024Observed: 1509.33 ft at 8:30AM Apr 16, 2024Observed: 1509.35 ft at 8:45AM Apr 16, 2024Observed: 1509.36 ft at 9:00AM Apr 16, 2024Observed: 1509.36 ft at 9:15AM Apr 16, 2024Observed: 1509.36 ft at 9:30AM Apr 16, 2024Observed: 1509.36 ft at 9:45AM Apr 16, 2024Observed: 1509.36 ft at 10:00AM Apr 16, 2024Observed: 1509.35 ft at 10:15AM Apr 16, 2024Observed: 1509.35 ft at 10:30AM Apr 16, 2024Observed: 1509.37 ft at 10:45AM Apr 16, 2024Observed: 1509.35 ft at 11:00AM Apr 16, 2024Observed: 1509.36 ft at 11:15AM Apr 16, 2024Observed: 1509.36 ft at 11:30AM Apr 16, 2024Observed: 1509.35 ft at 11:45AM Apr 16, 2024Observed: 1509.38 ft at 12:00PM Apr 16, 2024Observed: 1509.37 ft at 12:15PM Apr 16, 2024Observed: 1509.39 ft at 12:30PM Apr 16, 2024Observed: 1509.41 ft at 12:45PM Apr 16, 2024Observed: 1509.39 ft at 1:00PM Apr 16, 2024Observed: 1509.38 ft at 1:15PM Apr 16, 2024Observed: 1509.38 ft at 1:30PM Apr 16, 2024Observed: 1509.41 ft at 1:45PM Apr 16, 2024Observed: 1509.42 ft at 2:00PM Apr 16, 2024Observed: 1509.42 ft at 2:15PM Apr 16, 2024Observed: 1509.42 ft at 2:30PM Apr 16, 2024Observed: 1509.45 ft at 2:45PM Apr 16, 2024Observed: 1509.46 ft at 3:00PM Apr 16, 2024Observed: 1509.46 ft at 3:15PM Apr 16, 2024Observed: 1509.46 ft at 3:30PM Apr 16, 2024Observed: 1509.46 ft at 3:45PM Apr 16, 2024Observed: 1509.46 ft at 4:00PM Apr 16, 2024Observed: 1509.46 ft at 4:15PM Apr 16, 2024Observed: 1509.44 ft at 4:30PM Apr 16, 2024Observed: 1509.43 ft at 4:45PM Apr 16, 2024Observed: 1509.44 ft at 5:00PM Apr 16, 2024Observed: 1509.47 ft at 5:15PM Apr 16, 2024Observed: 1509.47 ft at 5:30PM Apr 16, 2024Observed: 1509.47 ft at 5:45PM Apr 16, 2024Observed: 1509.48 ft at 6:00PM Apr 16, 2024Observed: 1509.48 ft at 6:15PM Apr 16, 2024Observed: 1509.48 ft at 6:30PM Apr 16, 2024Observed: 1509.47 ft at 6:45PM Apr 16, 2024Observed: 1509.47 ft at 7:00PM Apr 16, 2024Observed: 1509.47 ft at 7:15PM Apr 16, 2024Observed: 1509.48 ft at 7:30PM Apr 16, 2024Observed: 1509.48 ft at 7:45PM Apr 16, 2024Observed: 1509.48 ft at 8:00PM Apr 16, 2024Observed: 1509.48 ft at 8:15PM Apr 16, 2024Observed: 1509.48 ft at 8:30PM Apr 16, 2024Observed: 1509.48 ft at 8:45PM Apr 16, 2024Observed: 1509.48 ft at 9:00PM Apr 16, 2024Observed: 1509.48 ft at 9:15PM Apr 16, 2024Observed: 1509.48 ft at 9:30PM Apr 16, 2024Observed: 1509.48 ft at 9:45PM Apr 16, 2024Observed: 1509.48 ft at 10:00PM Apr 16, 2024Observed: 1509.48 ft at 10:15PM Apr 16, 2024Observed: 1509.47 ft at 10:30PM Apr 16, 2024Observed: 1509.47 ft at 10:45PM Apr 16, 2024Observed: 1509.47 ft at 11:00PM Apr 16, 2024Observed: 1509.47 ft at 11:15PM Apr 16, 2024Observed: 1509.47 ft at 11:30PM Apr 16, 2024Observed: 1509.47 ft at 11:45PM Apr 16, 2024Observed: 1509.48 ft at 12:00AM Apr 17, 2024Observed: 1509.48 ft at 12:15AM Apr 17, 2024Observed: 1509.46 ft at 12:30AM Apr 17, 2024Observed: 1509.48 ft at 12:45AM Apr 17, 2024Observed: 1509.49 ft at 1:00AM Apr 17, 2024Observed: 1509.48 ft at 1:15AM Apr 17, 2024Observed: 1509.48 ft at 1:30AM Apr 17, 2024Observed: 1509.49 ft at 1:45AM Apr 17, 2024Observed: 1509.49 ft at 2:00AM Apr 17, 2024Observed: 1509.49 ft at 2:15AM Apr 17, 2024Observed: 1509.49 ft at 2:30AM Apr 17, 2024Observed: 1509.49 ft at 2:45AM Apr 17, 2024Observed: 1509.49 ft at 3:00AM Apr 17, 2024Observed: 1509.49 ft at 3:15AM Apr 17, 2024Observed: 1509.48 ft at 3:30AM Apr 17, 2024Observed: 1509.49 ft at 3:45AM Apr 17, 2024Observed: 1509.49 ft at 4:00AM Apr 17, 2024Observed: 1509.5 ft at 4:15AM Apr 17, 2024Observed: 1509.49 ft at 4:30AM Apr 17, 2024Observed: 1509.49 ft at 4:45AM Apr 17, 2024Observed: 1509.5 ft at 5:00AM Apr 17, 2024Observed: 1509.5 ft at 5:15AM Apr 17, 2024Observed: 1509.5 ft at 5:45AM Apr 17, 2024Observed: 1509.5 ft at 6:00AM Apr 17, 2024Observed: 1509.5 ft at 6:15AM Apr 17, 2024Observed: 1509.51 ft at 6:30AM Apr 17, 2024Observed: 1509.5 ft at 6:45AM Apr 17, 2024Observed: 1509.51 ft at 7:00AM Apr 17, 2024Observed: 1509.51 ft at 7:15AM Apr 17, 2024Observed: 1509.51 ft at 7:30AM Apr 17, 2024Observed: 1509.51 ft at 7:45AM Apr 17, 2024Observed: 1509.51 ft at 8:00AM Apr 17, 2024Observed: 1509.52 ft at 8:15AM Apr 17, 2024Observed: 1509.53 ft at 8:30AM Apr 17, 2024Observed: 1509.52 ft at 8:45AM Apr 17, 2024Observed: 1509.53 ft at 9:00AM Apr 17, 2024Observed: 1509.53 ft at 9:15AM Apr 17, 2024Observed: 1509.53 ft at 9:30AM Apr 17, 2024Observed: 1509.54 ft at 9:45AM Apr 17, 2024Observed: 1509.53 ft at 10:00AM Apr 17, 2024Observed: 1509.55 ft at 10:15AM Apr 17, 2024Observed: 1509.55 ft at 10:30AM Apr 17, 2024Observed: 1509.56 ft at 10:45AM Apr 17, 2024Observed: 1509.55 ft at 11:00AM Apr 17, 2024Observed: 1509.56 ft at 11:15AM Apr 17, 2024Observed: 1509.56 ft at 11:30AM Apr 17, 2024Observed: 1509.56 ft at 11:45AM Apr 17, 2024Observed: 1509.56 ft at 12:00PM Apr 17, 2024Observed: 1509.57 ft at 12:15PM Apr 17, 2024Observed: 1509.58 ft at 12:30PM Apr 17, 2024Observed: 1509.59 ft at 12:45PM Apr 17, 2024Observed: 1509.59 ft at 1:00PM Apr 17, 2024Observed: 1509.59 ft at 1:15PM Apr 17, 2024Observed: 1509.6 ft at 1:30PM Apr 17, 2024Observed: 1509.6 ft at 1:45PM Apr 17, 2024Observed: 1509.61 ft at 2:00PM Apr 17, 2024Observed: 1509.62 ft at 2:15PM Apr 17, 2024Observed: 1509.63 ft at 2:30PM Apr 17, 2024Observed: 1509.62 ft at 2:45PM Apr 17, 2024Observed: 1509.63 ft at 3:00PM Apr 17, 2024Observed: 1509.64 ft at 3:15PM Apr 17, 2024Observed: 1509.64 ft at 3:30PM Apr 17, 2024Observed: 1509.65 ft at 3:45PM Apr 17, 2024Observed: 1509.66 ft at 4:00PM Apr 17, 2024Observed: 1509.66 ft at 4:15PM Apr 17, 2024Observed: 1509.66 ft at 4:30PM Apr 17, 2024Observed: 1509.68 ft at 4:45PM Apr 17, 2024Observed: 1509.68 ft at 5:00PM Apr 17, 2024Observed: 1509.69 ft at 5:15PM Apr 17, 2024Observed: 1509.69 ft at 5:30PM Apr 17, 2024Observed: 1509.7 ft at 5:45PM Apr 17, 2024Observed: 1509.7 ft at 6:00PM Apr 17, 2024Observed: 1509.71 ft at 6:15PM Apr 17, 2024Observed: 1509.71 ft at 6:30PM Apr 17, 2024Observed: 1509.71 ft at 6:45PM Apr 17, 2024Observed: 1509.71 ft at 7:00PM Apr 17, 2024Observed: 1509.71 ft at 7:15PM Apr 17, 2024Observed: 1509.72 ft at 7:30PM Apr 17, 2024Observed: 1509.73 ft at 7:45PM Apr 17, 2024Observed: 1509.73 ft at 8:00PM Apr 17, 2024Observed: 1509.74 ft at 8:15PM Apr 17, 2024Observed: 1509.74 ft at 8:30PM Apr 17, 2024Observed: 1509.75 ft at 8:45PM Apr 17, 2024Observed: 1509.76 ft at 9:00PM Apr 17, 2024Observed: 1509.76 ft at 9:15PM Apr 17, 2024Observed: 1509.77 ft at 9:30PM Apr 17, 2024Observed: 1509.77 ft at 9:45PM Apr 17, 2024Observed: 1509.78 ft at 10:00PM Apr 17, 2024Observed: 1509.78 ft at 10:15PM Apr 17, 2024Observed: 1509.79 ft at 10:30PM Apr 17, 2024Observed: 1509.79 ft at 10:45PM Apr 17, 2024Observed: 1509.8 ft at 11:00PM Apr 17, 2024Observed: 1509.81 ft at 11:15PM Apr 17, 2024Observed: 1509.81 ft at 11:30PM Apr 17, 2024Observed: 1509.82 ft at 11:45PM Apr 17, 2024Observed: 1509.82 ft at 12:00AM Apr 18, 2024Observed: 1509.84 ft at 1:15AM Apr 18, 2024Observed: 1509.84 ft at 1:30AM Apr 18, 2024Observed: 1509.84 ft at 1:45AM Apr 18, 2024Observed: 1509.84 ft at 2:00AM Apr 18, 2024Observed: 1509.84 ft at 2:15AM Apr 18, 2024Observed: 1509.85 ft at 2:30AM Apr 18, 2024Observed: 1509.85 ft at 2:45AM Apr 18, 2024Observed: 1509.85 ft at 3:00AM Apr 18, 2024Observed: 1509.85 ft at 3:15AM Apr 18, 2024Observed: 1509.86 ft at 3:30AM Apr 18, 2024Observed: 1509.86 ft at 3:45AM Apr 18, 2024Observed: 1509.86 ft at 4:00AM Apr 18, 2024Observed: 1509.86 ft at 4:15AM Apr 18, 2024Observed: 1509.87 ft at 4:30AM Apr 18, 2024Observed: 1509.86 ft at 4:45AM Apr 18, 2024Observed: 1509.87 ft at 5:00AM Apr 18, 2024Observed: 1509.87 ft at 5:15AM Apr 18, 2024Observed: 1509.87 ft at 5:30AM Apr 18, 2024Observed: 1509.87 ft at 5:45AM Apr 18, 2024Observed: 1509.87 ft at 6:00AM Apr 18, 2024Observed: 1509.88 ft at 6:15AM Apr 18, 2024Observed: 1509.88 ft at 6:30AM Apr 18, 2024Observed: 1509.88 ft at 6:45AM Apr 18, 2024Observed: 1509.88 ft at 7:00AM Apr 18, 2024Observed: 1509.88 ft at 7:15AM Apr 18, 2024Observed: 1509.89 ft at 7:30AM Apr 18, 2024Observed: 1509.89 ft at 7:45AM Apr 18, 2024Observed: 1509.89 ft at 8:00AM Apr 18, 2024Observed: 1509.89 ft at 8:15AM Apr 18, 2024Observed: 1509.9 ft at 8:30AM Apr 18, 2024Observed: 1509.89 ft at 8:45AM Apr 18, 2024Observed: 1509.89 ft at 9:00AM Apr 18, 2024Observed: 1509.9 ft at 9:15AM Apr 18, 2024Observed: 1509.9 ft at 9:30AM Apr 18, 2024Observed: 1509.9 ft at 9:45AM Apr 18, 2024Observed: 1509.9 ft at 10:00AM Apr 18, 2024Observed: 1509.9 ft at 10:15AM Apr 18, 2024Observed: 1509.91 ft at 10:30AM Apr 18, 2024Observed: 1509.91 ft at 10:45AM Apr 18, 2024Observed: 1509.92 ft at 11:00AM Apr 18, 2024Observed: 1509.91 ft at 11:15AM Apr 18, 2024Observed: 1509.91 ft at 11:30AM Apr 18, 2024Observed: 1509.91 ft at 11:45AM Apr 18, 2024Observed: 1509.91 ft at 12:00PM Apr 18, 2024Observed: 1509.91 ft at 12:15PM Apr 18, 2024Observed: 1509.92 ft at 12:30PM Apr 18, 2024Observed: 1509.91 ft at 12:45PM Apr 18, 2024Observed: 1509.93 ft at 1:00PM Apr 18, 2024Observed: 1509.91 ft at 1:15PM Apr 18, 2024Observed: 1509.93 ft at 1:30PM Apr 18, 2024Observed: 1509.92 ft at 1:45PM Apr 18, 2024Observed: 1509.94 ft at 2:00PM Apr 18, 2024Observed: 1509.92 ft at 2:15PM Apr 18, 2024Observed: 1509.94 ft at 2:30PM Apr 18, 2024Observed: 1509.93 ft at 2:45PM Apr 18, 2024Observed: 1509.93 ft at 3:00PM Apr 18, 2024Observed: 1509.94 ft at 3:15PM Apr 18, 2024Observed: 1509.95 ft at 3:30PM Apr 18, 2024Observed: 1509.96 ft at 3:45PM Apr 18, 2024Observed: 1509.96 ft at 4:00PM Apr 18, 2024Observed: 1509.96 ft at 4:15PM Apr 18, 2024Observed: 1509.95 ft at 4:30PM Apr 18, 2024Observed: 1509.96 ft at 4:45PM Apr 18, 2024Observed: 1509.97 ft at 5:00PM Apr 18, 2024Observed: 1509.96 ft at 5:15PM Apr 18, 2024Observed: 1509.96 ft at 5:30PM Apr 18, 2024Observed: 1509.97 ft at 5:45PM Apr 18, 2024Observed: 1509.97 ft at 6:00PM Apr 18, 2024Observed: 1509.96 ft at 6:15PM Apr 18, 2024Observed: 1509.97 ft at 6:30PM Apr 18, 2024Observed: 1509.96 ft at 6:45PM Apr 18, 2024Observed: 1509.97 ft at 7:00PM Apr 18, 2024Observed: 1509.98 ft at 7:15PM Apr 18, 2024Observed: 1509.97 ft at 7:30PM Apr 18, 2024Observed: 1509.98 ft at 7:45PM Apr 18, 2024Observed: 1509.98 ft at 8:00PM Apr 18, 2024Observed: 1509.98 ft at 8:15PM Apr 18, 2024Observed: 1509.99 ft at 8:30PM Apr 18, 2024Observed: 1509.99 ft at 8:45PM Apr 18, 2024Observed: 1509.99 ft at 9:00PM Apr 18, 2024Observed: 1509.99 ft at 9:15PM Apr 18, 2024Observed: 1510 ft at 9:30PM Apr 18, 2024Observed: 1510 ft at 9:45PM Apr 18, 2024Observed: 1510 ft at 10:00PM Apr 18, 2024Observed: 1510 ft at 10:15PM Apr 18, 2024Observed: 1510 ft at 10:30PM Apr 18, 2024Observed: 1510 ft at 10:45PM Apr 18, 2024Observed: 1510.01 ft at 11:00PM Apr 18, 2024Observed: 1510 ft at 11:15PM Apr 18, 2024Observed: 1510 ft at 11:30PM Apr 18, 2024Observed: 1509.99 ft at 11:45PM Apr 18, 2024Observed: 1509.99 ft at 12:00AM Apr 19, 2024Observed: 1510 ft at 12:15AM Apr 19, 2024Observed: 1509.99 ft at 12:30AM Apr 19, 2024Observed: 1510 ft at 12:45AM Apr 19, 2024Observed: 1510 ft at 1:00AM Apr 19, 2024Observed: 1509.99 ft at 1:15AM Apr 19, 2024Observed: 1509.99 ft at 1:30AM Apr 19, 2024Observed: 1509.99 ft at 1:45AM Apr 19, 2024Observed: 1510 ft at 2:00AM Apr 19, 2024Observed: 1509.99 ft at 2:15AM Apr 19, 2024Observed: 1509.99 ft at 2:30AM Apr 19, 2024Observed: 1509.99 ft at 2:45AM Apr 19, 2024Observed: 1509.99 ft at 3:00AM Apr 19, 2024Observed: 1510 ft at 3:15AM Apr 19, 2024Observed: 1510 ft at 3:30AM Apr 19, 2024Observed: 1510 ft at 3:45AM Apr 19, 2024Observed: 1510 ft at 4:00AM Apr 19, 2024Observed: 1510 ft at 4:15AM Apr 19, 2024Observed: 1510.01 ft at 4:30AM Apr 19, 2024Observed: 1510.01 ft at 4:45AM Apr 19, 2024Observed: 1510.01 ft at 5:00AM Apr 19, 2024Observed: 1510.01 ft at 5:15AM Apr 19, 2024Observed: 1510.01 ft at 5:30AM Apr 19, 2024Observed: 1510.02 ft at 5:45AM Apr 19, 2024Observed: 1510.02 ft at 6:00AM Apr 19, 2024Observed: 1510.02 ft at 6:15AM Apr 19, 2024Observed: 1510.03 ft at 6:30AM Apr 19, 2024Observed: 1510.03 ft at 6:45AM Apr 19, 2024Observed: 1510.03 ft at 7:00AM Apr 19, 2024Observed: 1510.03 ft at 7:15AM Apr 19, 2024Observed: 1510.03 ft at 7:30AM Apr 19, 2024Observed: 1510.04 ft at 7:45AM Apr 19, 2024Observed: 1510.04 ft at 8:00AM Apr 19, 2024Observed: 1510.04 ft at 8:15AM Apr 19, 2024Observed: 1510.04 ft at 8:30AM Apr 19, 2024Observed: 1510.04 ft at 8:45AM Apr 19, 2024Observed: 1510.05 ft at 9:00AM Apr 19, 2024Observed: 1510.05 ft at 9:15AM Apr 19, 2024Observed: 1510.05 ft at 9:30AM Apr 19, 2024Observed: 1510.06 ft at 9:45AM Apr 19, 2024Observed: 1510.06 ft at 10:00AM Apr 19, 2024Observed: 1510.07 ft at 10:15AM Apr 19, 2024Observed: 1510.07 ft at 10:30AM Apr 19, 2024Observed: 1510.08 ft at 10:45AM Apr 19, 2024Observed: 1510.08 ft at 11:00AM Apr 19, 2024Observed: 1510.08 ft at 11:15AM Apr 19, 2024Observed: 1510.09 ft at 11:30AM Apr 19, 2024Observed: 1510.08 ft at 11:45AM Apr 19, 2024Observed: 1510.08 ft at 12:00PM Apr 19, 2024Observed: 1510.09 ft at 12:15PM Apr 19, 2024Observed: 1510.09 ft at 12:30PM Apr 19, 2024Observed: 1510.09 ft at 12:45PM Apr 19, 2024Observed: 1510.09 ft at 1:00PM Apr 19, 2024Observed: 1510.11 ft at 1:15PM Apr 19, 2024Observed: 1510.12 ft at 1:30PM Apr 19, 2024Observed: 1510.12 ft at 1:45PM Apr 19, 2024Observed: 1510.13 ft at 2:00PM Apr 19, 2024Observed: 1510.14 ft at 2:15PM Apr 19, 2024Observed: 1510.13 ft at 2:30PM Apr 19, 2024Observed: 1510.16 ft at 2:45PM Apr 19, 2024Observed: 1510.16 ft at 3:00PM Apr 19, 2024Observed: 1510.17 ft at 3:15PM Apr 19, 2024Observed: 1510.17 ft at 3:30PM Apr 19, 2024Observed: 1510.17 ft at 3:45PM Apr 19, 2024Observed: 1510.18 ft at 4:00PM Apr 19, 2024Observed: 1510.18 ft at 4:15PM Apr 19, 2024Observed: 1510.18 ft at 4:30PM Apr 19, 2024Observed: 1510.19 ft at 4:45PM Apr 19, 2024Observed: 1510.19 ft at 5:00PM Apr 19, 2024Observed: 1510.2 ft at 5:15PM Apr 19, 2024Observed: 1510.2 ft at 5:30PM Apr 19, 2024Observed: 1510.19 ft at 5:45PM Apr 19, 2024Observed: 1510.2 ft at 6:00PM Apr 19, 2024Observed: 1510.2 ft at 6:15PM Apr 19, 2024Observed: 1510.2 ft at 6:30PM Apr 19, 2024Observed: 1510.21 ft at 6:45PM Apr 19, 2024Observed: 1510.21 ft at 7:00PM Apr 19, 2024Observed: 1510.22 ft at 7:15PM Apr 19, 2024Observed: 1510.22 ft at 7:30PM Apr 19, 2024Observed: 1510.22 ft at 7:45PM Apr 19, 2024Observed: 1510.23 ft at 8:00PM Apr 19, 2024Observed: 1510.23 ft at 8:15PM Apr 19, 2024Observed: 1510.24 ft at 8:30PM Apr 19, 2024Observed: 1510.24 ft at 8:45PM Apr 19, 2024Observed: 1510.24 ft at 9:00PM Apr 19, 2024Observed: 1510.25 ft at 9:15PM Apr 19, 2024Observed: 1510.25 ft at 9:30PM Apr 19, 2024Observed: 1510.25 ft at 9:45PM Apr 19, 2024Observed: 1510.25 ft at 10:00PM Apr 19, 2024Observed: 1510.26 ft at 10:15PM Apr 19, 2024Observed: 1510.26 ft at 10:30PM Apr 19, 2024Observed: 1510.26 ft at 10:45PM Apr 19, 2024Observed: 1510.26 ft at 11:00PM Apr 19, 2024Observed: 1510.26 ft at 11:15PM Apr 19, 2024Observed: 1510.26 ft at 11:30PM Apr 19, 2024Observed: 1510.26 ft at 11:45PM Apr 19, 2024Observed: 1510.26 ft at 12:00AM Apr 20, 2024Observed: 1510.26 ft at 12:15AM Apr 20, 2024Observed: 1510.26 ft at 12:30AM Apr 20, 2024Observed: 1510.27 ft at 12:45AM Apr 20, 2024Observed: 1510.26 ft at 1:00AM Apr 20, 2024Observed: 1510.26 ft at 1:15AM Apr 20, 2024Observed: 1510.26 ft at 1:30AM Apr 20, 2024Observed: 1510.27 ft at 1:45AM Apr 20, 2024Observed: 1510.27 ft at 2:00AM Apr 20, 2024Observed: 1510.27 ft at 2:15AM Apr 20, 2024Observed: 1510.27 ft at 2:30AM Apr 20, 2024Observed: 1510.27 ft at 2:45AM Apr 20, 2024Observed: 1510.27 ft at 3:00AM Apr 20, 2024Observed: 1510.28 ft at 3:15AM Apr 20, 2024Observed: 1510.28 ft at 3:30AM Apr 20, 2024Observed: 1510.27 ft at 3:45AM Apr 20, 2024Observed: 1510.27 ft at 4:00AM Apr 20, 2024Observed: 1510.27 ft at 4:15AM Apr 20, 2024Observed: 1510.28 ft at 4:30AM Apr 20, 2024Observed: 1510.28 ft at 4:45AM Apr 20, 2024Observed: 1510.28 ft at 5:00AM Apr 20, 2024Observed: 1510.28 ft at 5:15AM Apr 20, 2024Observed: 1510.28 ft at 5:30AM Apr 20, 2024Observed: 1510.28 ft at 5:45AM Apr 20, 2024Observed: 1510.28 ft at 6:00AM Apr 20, 2024Observed: 1510.28 ft at 6:15AM Apr 20, 2024Observed: 1510.29 ft at 6:30AM Apr 20, 2024Observed: 1510.29 ft at 6:45AM Apr 20, 2024Observed: 1510.29 ft at 7:00AM Apr 20, 2024Observed: 1510.29 ft at 7:15AM Apr 20, 2024Observed: 1510.29 ft at 7:30AM Apr 20, 2024Observed: 1510.3 ft at 7:45AM Apr 20, 2024Observed: 1510.29 ft at 8:00AM Apr 20, 2024Observed: 1510.3 ft at 8:15AM Apr 20, 2024Observed: 1510.3 ft at 8:30AM Apr 20, 2024Observed: 1510.3 ft at 8:45AM Apr 20, 2024Observed: 1510.31 ft at 9:00AM Apr 20, 2024Observed: 1510.31 ft at 10:15AM Apr 20, 2024Observed: 1510.32 ft at 10:30AM Apr 20, 2024Observed: 1510.31 ft at 10:45AM Apr 20, 2024Observed: 1510.32 ft at 11:00AM Apr 20, 2024Observed: 1510.32 ft at 1:15PM Apr 20, 2024Observed: 1510.32 ft at 1:30PM Apr 20, 2024Observed: 1510.32 ft at 1:45PM Apr 20, 2024Observed: 1510.32 ft at 2:00PM Apr 20, 2024Observed: 1510.33 ft at 2:15PM Apr 20, 2024Observed: 1510.33 ft at 2:30PM Apr 20, 2024Observed: 1510.33 ft at 2:45PM Apr 20, 2024Observed: 1510.34 ft at 3:00PM Apr 20, 2024Observed: 1510.34 ft at 3:15PM Apr 20, 2024Observed: 1510.34 ft at 3:30PM Apr 20, 2024Observed: 1510.35 ft at 3:45PM Apr 20, 2024Observed: 1510.35 ft at 4:00PM Apr 20, 2024Observed: 1510.35 ft at 4:15PM Apr 20, 2024Observed: 1510.35 ft at 4:30PM Apr 20, 2024Highest Observation: 1510.36 ft at 4:45PM Apr 20, 2024Highest Observation: 1510.36 ft at 5:00PM Apr 20, 2024Highest Observation: 1510.36 ft at 5:15PM Apr 20, 2024Highest Observation: 1510.36 ft at 5:30PM Apr 20, 2024Observed: 1510.35 ft at 5:45PM Apr 20, 2024Observed: 1510.35 ft at 6:00PM Apr 20, 2024Observed: 1510.35 ft at 6:15PM Apr 20, 2024Observed: 1510.35 ft at 6:30PM Apr 20, 2024Observed: 1510.35 ft at 6:45PM Apr 20, 2024Observed: 1510.35 ft at 7:00PM Apr 20, 2024Observed: 1510.34 ft at 7:15PM Apr 20, 2024Observed: 1510.34 ft at 7:30PM Apr 20, 2024Observed: 1510.33 ft at 7:45PM Apr 20, 2024Observed: 1510.33 ft at 8:00PM Apr 20, 2024Observed: 1510.33 ft at 8:15PM Apr 20, 2024Observed: 1510.33 ft at 8:30PM Apr 20, 2024Observed: 1510.32 ft at 8:45PM Apr 20, 2024Observed: 1510.32 ft at 9:00PM Apr 20, 2024Observed: 1510.32 ft at 9:15PM Apr 20, 2024Observed: 1510.32 ft at 9:30PM Apr 20, 2024Observed: 1510.32 ft at 9:45PM Apr 20, 2024Observed: 1510.31 ft at 10:00PM Apr 20, 2024Observed: 1510.31 ft at 10:15PM Apr 20, 2024Observed: 1510.31 ft at 10:30PM Apr 20, 2024Observed: 1510.31 ft at 10:45PM Apr 20, 2024Observed: 1510.31 ft at 11:00PM Apr 20, 2024Observed: 1510.31 ft at 11:15PM Apr 20, 2024Observed: 1510.32 ft at 11:30PM Apr 20, 2024Observed: 1510.31 ft at 11:45PM Apr 20, 2024Observed: 1510.31 ft at 12:00AM Apr 21, 2024Observed: 1510.31 ft at 12:15AM Apr 21, 2024Observed: 1510.31 ft at 12:30AM Apr 21, 2024Observed: 1510.31 ft at 12:45AM Apr 21, 2024Observed: 1510.31 ft at 1:00AM Apr 21, 2024Observed: 1510.31 ft at 1:15AM Apr 21, 2024Observed: 1510.31 ft at 1:30AM Apr 21, 2024Observed: 1510.31 ft at 1:45AM Apr 21, 2024Observed: 1510.31 ft at 2:00AM Apr 21, 2024Observed: 1510.3 ft at 2:15AM Apr 21, 2024Observed: 1510.31 ft at 2:30AM Apr 21, 2024Observed: 1510.31 ft at 2:45AM Apr 21, 2024Observed: 1510.31 ft at 3:00AM Apr 21, 2024Observed: 1510.31 ft at 3:15AM Apr 21, 2024Observed: 1510.31 ft at 3:30AM Apr 21, 2024Observed: 1510.3 ft at 3:45AM Apr 21, 2024Observed: 1510.3 ft at 4:00AM Apr 21, 2024Observed: 1510.3 ft at 4:15AM Apr 21, 2024Observed: 1510.3 ft at 4:30AM Apr 21, 2024Observed: 1510.3 ft at 4:45AM Apr 21, 2024Observed: 1510.29 ft at 5:00AM Apr 21, 2024Observed: 1510.29 ft at 5:15AM Apr 21, 2024Observed: 1510.29 ft at 5:30AM Apr 21, 2024Observed: 1510.29 ft at 5:45AM Apr 21, 2024Observed: 1510.29 ft at 6:00AM Apr 21, 2024Observed: 1510.29 ft at 6:15AM Apr 21, 2024Observed: 1510.29 ft at 6:30AM Apr 21, 2024Observed: 1510.29 ft at 6:45AM Apr 21, 2024Observed: 1510.29 ft at 7:00AM Apr 21, 2024Observed: 1510.29 ft at 7:15AM Apr 21, 2024Observed: 1510.29 ft at 7:30AM Apr 21, 2024Observed: 1510.29 ft at 7:45AM Apr 21, 2024Observed: 1510.29 ft at 8:00AM Apr 21, 2024Observed: 1510.28 ft at 8:15AM Apr 21, 2024Observed: 1510.29 ft at 8:30AM Apr 21, 2024Observed: 1510.29 ft at 8:45AM Apr 21, 2024Observed: 1510.29 ft at 9:00AM Apr 21, 2024Observed: 1510.29 ft at 9:15AM Apr 21, 2024Observed: 1510.29 ft at 9:30AM Apr 21, 2024Observed: 1510.29 ft at 9:45AM Apr 21, 2024Observed: 1510.3 ft at 10:00AM Apr 21, 2024Observed: 1510.3 ft at 10:15AM Apr 21, 2024Observed: 1510.3 ft at 10:30AM Apr 21, 2024Observed: 1510.31 ft at 10:45AM Apr 21, 2024Observed: 1510.32 ft at 11:00AM Apr 21, 2024Observed: 1510.32 ft at 11:15AM Apr 21, 2024Observed: 1510.31 ft at 11:30AM Apr 21, 2024Observed: 1510.31 ft at 11:45AM Apr 21, 2024Observed: 1510.31 ft at 12:00PM Apr 21, 2024Observed: 1510.32 ft at 12:15PM Apr 21, 2024Observed: 1510.32 ft at 12:30PM Apr 21, 2024Observed: 1510.32 ft at 12:45PM Apr 21, 2024Observed: 1510.32 ft at 1:00PM Apr 21, 2024Observed: 1510.32 ft at 1:15PM Apr 21, 2024Observed: 1510.32 ft at 1:30PM Apr 21, 2024Observed: 1510.32 ft at 1:45PM Apr 21, 2024Observed: 1510.32 ft at 2:00PM Apr 21, 2024Observed: 1510.32 ft at 2:15PM Apr 21, 2024Observed: 1510.31 ft at 2:30PM Apr 21, 2024Observed: 1510.32 ft at 2:45PM Apr 21, 2024Observed: 1510.32 ft at 3:00PM Apr 21, 2024Observed: 1510.32 ft at 3:15PM Apr 21, 2024Observed: 1510.33 ft at 3:30PM Apr 21, 2024Observed: 1510.32 ft at 3:45PM Apr 21, 2024Observed: 1510.32 ft at 4:00PM Apr 21, 2024Observed: 1510.32 ft at 4:15PM Apr 21, 2024Observed: 1510.31 ft at 4:30PM Apr 21, 2024Observed: 1510.33 ft at 4:45PM Apr 21, 2024Observed: 1510.32 ft at 5:00PM Apr 21, 2024Observed: 1510.32 ft at 5:15PM Apr 21, 2024Observed: 1510.32 ft at 5:30PM Apr 21, 2024Observed: 1510.31 ft at 5:45PM Apr 21, 2024Observed: 1510.31 ft at 6:00PM Apr 21, 2024Observed: 1510.3 ft at 6:15PM Apr 21, 2024Observed: 1510.31 ft at 6:30PM Apr 21, 2024Observed: 1510.3 ft at 6:45PM Apr 21, 2024Observed: 1510.3 ft at 7:00PM Apr 21, 2024Observed: 1510.3 ft at 7:15PM Apr 21, 2024Observed: 1510.29 ft at 7:30PM Apr 21, 2024Observed: 1510.3 ft at 7:45PM Apr 21, 2024Observed: 1510.29 ft at 8:00PM Apr 21, 2024Observed: 1510.29 ft at 8:15PM Apr 21, 2024Observed: 1510.29 ft at 8:30PM Apr 21, 2024Observed: 1510.28 ft at 8:45PM Apr 21, 2024Observed: 1510.28 ft at 9:00PM Apr 21, 2024Observed: 1510.28 ft at 9:15PM Apr 21, 2024Observed: 1510.28 ft at 9:30PM Apr 21, 2024Observed: 1510.28 ft at 9:45PM Apr 21, 2024Observed: 1510.27 ft at 10:00PM Apr 21, 2024Observed: 1510.27 ft at 10:15PM Apr 21, 2024Observed: 1510.27 ft at 10:30PM Apr 21, 2024Observed: 1510.27 ft at 10:45PM Apr 21, 2024Observed: 1510.27 ft at 11:00PM Apr 21, 2024Observed: 1510.27 ft at 11:15PM Apr 21, 2024Observed: 1510.27 ft at 11:30PM Apr 21, 2024Observed: 1510.27 ft at 11:45PM Apr 21, 2024Observed: 1510.27 ft at 12:00AM Apr 22, 2024Observed: 1510.26 ft at 12:15AM Apr 22, 2024Observed: 1510.26 ft at 12:30AM Apr 22, 2024Observed: 1510.26 ft at 12:45AM Apr 22, 2024Observed: 1510.26 ft at 1:00AM Apr 22, 2024Observed: 1510.26 ft at 1:15AM Apr 22, 2024Observed: 1510.25 ft at 1:30AM Apr 22, 2024Observed: 1510.25 ft at 1:45AM Apr 22, 2024Observed: 1510.25 ft at 2:00AM Apr 22, 2024Observed: 1510.25 ft at 2:15AM Apr 22, 2024Observed: 1510.25 ft at 2:30AM Apr 22, 2024Observed: 1510.24 ft at 2:45AM Apr 22, 2024Observed: 1510.24 ft at 3:00AM Apr 22, 2024Observed: 1510.24 ft at 3:15AM Apr 22, 2024Observed: 1510.24 ft at 3:30AM Apr 22, 2024Observed: 1510.23 ft at 3:45AM Apr 22, 2024Observed: 1510.23 ft at 4:00AM Apr 22, 2024Observed: 1510.23 ft at 4:15AM Apr 22, 2024Observed: 1510.23 ft at 4:30AM Apr 22, 2024Observed: 1510.22 ft at 4:45AM Apr 22, 2024Observed: 1510.23 ft at 5:00AM Apr 22, 2024Observed: 1510.23 ft at 5:15AM Apr 22, 2024Observed: 1510.22 ft at 5:30AM Apr 22, 2024Observed: 1510.22 ft at 5:45AM Apr 22, 2024Observed: 1510.22 ft at 6:00AM Apr 22, 2024Observed: 1510.22 ft at 6:15AM Apr 22, 2024Observed: 1510.22 ft at 6:30AM Apr 22, 2024Observed: 1510.22 ft at 6:45AM Apr 22, 2024Observed: 1510.21 ft at 7:00AM Apr 22, 2024Observed: 1510.21 ft at 7:15AM Apr 22, 2024Observed: 1510.21 ft at 7:30AM Apr 22, 2024Observed: 1510.21 ft at 7:45AM Apr 22, 2024Observed: 1510.2 ft at 8:00AM Apr 22, 2024Observed: 1510.22 ft at 8:15AM Apr 22, 2024Observed: 1510.2 ft at 8:30AM Apr 22, 2024Observed: 1510.2 ft at 8:45AM Apr 22, 2024Observed: 1510.19 ft at 9:00AM Apr 22, 2024Observed: 1510.19 ft at 9:15AM Apr 22, 2024Observed: 1510.19 ft at 9:30AM Apr 22, 2024Observed: 1510.2 ft at 9:45AM Apr 22, 2024Observed: 1510.19 ft at 10:00AM Apr 22, 2024Observed: 1510.2 ft at 10:15AM Apr 22, 2024Observed: 1510.2 ft at 10:30AM Apr 22, 2024Observed: 1510.2 ft at 10:45AM Apr 22, 2024Observed: 1510.19 ft at 11:00AM Apr 22, 2024Observed: 1510.18 ft at 11:15AM Apr 22, 2024Observed: 1510.19 ft at 11:30AM Apr 22, 2024Observed: 1510.2 ft at 11:45AM Apr 22, 2024Observed: 1510.19 ft at 12:00PM Apr 22, 2024Observed: 1510.2 ft at 12:15PM Apr 22, 2024Observed: 1510.2 ft at 12:30PM Apr 22, 2024Observed: 1510.21 ft at 12:45PM Apr 22, 2024Observed: 1510.2 ft at 1:00PM Apr 22, 2024Observed: 1510.21 ft at 1:15PM Apr 22, 2024Observed: 1510.21 ft at 1:30PM Apr 22, 2024Observed: 1510.21 ft at 1:45PM Apr 22, 2024Observed: 1510.2 ft at 2:00PM Apr 22, 2024Observed: 1510.2 ft at 2:15PM Apr 22, 2024Observed: 1510.21 ft at 2:30PM Apr 22, 2024Observed: 1510.21 ft at 2:45PM Apr 22, 2024Observed: 1510.2 ft at 3:00PM Apr 22, 2024Observed: 1510.21 ft at 3:15PM Apr 22, 2024Observed: 1510.21 ft at 3:30PM Apr 22, 2024Observed: 1510.22 ft at 3:45PM Apr 22, 2024Observed: 1510.21 ft at 4:00PM Apr 22, 2024Observed: 1510.21 ft at 4:15PM Apr 22, 2024Observed: 1510.2 ft at 4:30PM Apr 22, 2024Observed: 1510.2 ft at 4:45PM Apr 22, 2024Observed: 1510.21 ft at 5:00PM Apr 22, 2024Observed: 1510.22 ft at 5:15PM Apr 22, 2024Observed: 1510.21 ft at 5:30PM Apr 22, 2024Observed: 1510.2 ft at 5:45PM Apr 22, 2024Observed: 1510.21 ft at 6:00PM Apr 22, 2024Observed: 1510.21 ft at 6:15PM Apr 22, 2024Observed: 1510.2 ft at 6:30PM Apr 22, 2024Observed: 1510.2 ft at 6:45PM Apr 22, 2024Observed: 1510.19 ft at 7:00PM Apr 22, 2024Observed: 1510.19 ft at 7:15PM Apr 22, 2024Observed: 1510.19 ft at 7:30PM Apr 22, 2024Observed: 1510.18 ft at 7:45PM Apr 22, 2024Observed: 1510.18 ft at 8:00PM Apr 22, 2024Observed: 1510.18 ft at 8:15PM Apr 22, 2024Observed: 1510.17 ft at 8:30PM Apr 22, 2024Observed: 1510.17 ft at 8:45PM Apr 22, 2024Observed: 1510.17 ft at 9:00PM Apr 22, 2024Observed: 1510.17 ft at 9:15PM Apr 22, 2024Observed: 1510.17 ft at 9:30PM Apr 22, 2024Observed: 1510.17 ft at 9:45PM Apr 22, 2024Observed: 1510.17 ft at 10:00PM Apr 22, 2024Observed: 1510.17 ft at 10:15PM Apr 22, 2024Observed: 1510.18 ft at 10:30PM Apr 22, 2024Observed: 1510.18 ft at 10:45PM Apr 22, 2024Observed: 1510.17 ft at 11:00PM Apr 22, 2024Observed: 1510.17 ft at 11:15PM Apr 22, 2024Observed: 1510.17 ft at 11:30PM Apr 22, 2024Observed: 1510.17 ft at 11:45PM Apr 22, 2024Observed: 1510.17 ft at 12:00AM Apr 23, 2024Observed: 1510.17 ft at 12:15AM Apr 23, 2024Observed: 1510.17 ft at 12:30AM Apr 23, 2024Observed: 1510.17 ft at 12:45AM Apr 23, 2024Observed: 1510.17 ft at 1:00AM Apr 23, 2024Observed: 1510.17 ft at 1:15AM Apr 23, 2024Observed: 1510.16 ft at 1:30AM Apr 23, 2024Observed: 1510.16 ft at 1:45AM Apr 23, 2024Observed: 1510.16 ft at 2:00AM Apr 23, 2024Observed: 1510.16 ft at 2:15AM Apr 23, 2024Observed: 1510.16 ft at 2:30AM Apr 23, 2024Observed: 1510.16 ft at 2:45AM Apr 23, 2024Observed: 1510.16 ft at 3:00AM Apr 23, 2024Observed: 1510.15 ft at 3:15AM Apr 23, 2024Observed: 1510.15 ft at 3:30AM Apr 23, 2024Observed: 1510.15 ft at 3:45AM Apr 23, 2024Observed: 1510.15 ft at 4:00AM Apr 23, 2024Observed: 1510.15 ft at 4:15AM Apr 23, 2024Observed: 1510.15 ft at 4:30AM Apr 23, 2024Observed: 1510.14 ft at 4:45AM Apr 23, 2024Observed: 1510.14 ft at 5:00AM Apr 23, 2024Observed: 1510.14 ft at 5:15AM Apr 23, 2024Observed: 1510.14 ft at 5:30AM Apr 23, 2024Observed: 1510.13 ft at 5:45AM Apr 23, 2024Observed: 1510.14 ft at 6:00AM Apr 23, 2024Observed: 1510.14 ft at 6:15AM Apr 23, 2024Observed: 1510.14 ft at 6:30AM Apr 23, 2024Observed: 1510.13 ft at 6:45AM Apr 23, 2024Observed: 1510.14 ft at 7:00AM Apr 23, 2024Observed: 1510.13 ft at 7:15AM Apr 23, 2024Observed: 1510.13 ft at 7:30AM Apr 23, 2024Observed: 1510.13 ft at 7:45AM Apr 23, 2024Observed: 1510.13 ft at 8:00AM Apr 23, 2024Observed: 1510.12 ft at 8:15AM Apr 23, 2024Observed: 1510.12 ft at 8:30AM Apr 23, 2024Observed: 1510.12 ft at 8:45AM Apr 23, 2024Observed: 1510.12 ft at 9:00AM Apr 23, 2024Observed: 1510.13 ft at 9:15AM Apr 23, 2024Observed: 1510.12 ft at 9:30AM Apr 23, 2024Observed: 1510.11 ft at 9:45AM Apr 23, 2024Observed: 1510.12 ft at 10:00AM Apr 23, 2024Observed: 1510.11 ft at 10:15AM Apr 23, 2024Observed: 1510.12 ft at 10:30AM Apr 23, 2024Observed: 1510.12 ft at 10:45AM Apr 23, 2024Observed: 1510.09 ft at 11:00AM Apr 23, 2024Observed: 1510.11 ft at 11:15AM Apr 23, 2024Observed: 1510.1 ft at 11:30AM Apr 23, 2024Observed: 1510.11 ft at 11:45AM Apr 23, 2024Observed: 1510.1 ft at 12:00PM Apr 23, 2024Observed: 1510.1 ft at 12:15PM Apr 23, 2024Observed: 1510.09 ft at 12:30PM Apr 23, 2024Observed: 1510.1 ft at 12:45PM Apr 23, 2024Observed: 1510.11 ft at 1:00PM Apr 23, 2024Observed: 1510.08 ft at 1:15PM Apr 23, 2024Observed: 1510.1 ft at 1:30PM Apr 23, 2024Observed: 1510.1 ft at 1:45PM Apr 23, 2024Observed: 1510.1 ft at 2:00PM Apr 23, 2024Observed: 1510.1 ft at 2:15PM Apr 23, 2024Observed: 1510.1 ft at 2:30PM Apr 23, 2024Observed: 1510.09 ft at 2:45PM Apr 23, 2024Observed: 1510.12 ft at 3:00PM Apr 23, 2024Observed: 1510.1 ft at 3:15PM Apr 23, 2024Observed: 1510.11 ft at 3:30PM Apr 23, 2024Observed: 1510.11 ft at 3:45PM Apr 23, 2024Observed: 1510.11 ft at 4:00PM Apr 23, 2024Observed: 1510.09 ft at 4:15PM Apr 23, 2024Observed: 1510.1 ft at 4:30PM Apr 23, 2024Observed: 1510.1 ft at 4:45PM Apr 23, 2024Observed: 1510.1 ft at 5:00PM Apr 23, 2024Observed: 1510.1 ft at 5:15PM Apr 23, 2024Observed: 1510.11 ft at 5:30PM Apr 23, 2024Observed: 1510.1 ft at 5:45PM Apr 23, 2024Observed: 1510.1 ft at 6:00PM Apr 23, 2024Observed: 1510.09 ft at 6:15PM Apr 23, 2024Observed: 1510.09 ft at 6:30PM Apr 23, 2024Observed: 1510.09 ft at 6:45PM Apr 23, 2024Observed: 1510.07 ft at 7:00PM Apr 23, 2024Observed: 1510.08 ft at 7:15PM Apr 23, 2024Observed: 1510.08 ft at 7:30PM Apr 23, 2024Observed: 1510.07 ft at 7:45PM Apr 23, 2024Observed: 1510.07 ft at 8:00PM Apr 23, 2024Observed: 1510.07 ft at 8:15PM Apr 23, 2024Observed: 1510.07 ft at 8:30PM Apr 23, 2024Observed: 1510.06 ft at 8:45PM Apr 23, 2024Observed: 1510.06 ft at 9:00PM Apr 23, 2024Observed: 1510.05 ft at 9:15PM Apr 23, 2024Observed: 1510.05 ft at 9:30PM Apr 23, 2024Observed: 1510.05 ft at 9:45PM Apr 23, 2024Observed: 1510.05 ft at 10:00PM Apr 23, 2024Observed: 1510.04 ft at 10:15PM Apr 23, 2024Observed: 1510.04 ft at 10:30PM Apr 23, 2024Observed: 1510.04 ft at 10:45PM Apr 23, 2024Observed: 1510.04 ft at 11:00PM Apr 23, 2024Observed: 1510.04 ft at 11:15PM Apr 23, 2024Observed: 1510.03 ft at 11:30PM Apr 23, 2024Observed: 1510.03 ft at 11:45PM Apr 23, 2024Observed: 1510.03 ft at 12:00AM Apr 24, 2024Observed: 1510.03 ft at 12:15AM Apr 24, 2024Observed: 1510.02 ft at 12:30AM Apr 24, 2024Observed: 1510.02 ft at 12:45AM Apr 24, 2024Observed: 1510.02 ft at 1:00AM Apr 24, 2024Observed: 1510.02 ft at 1:15AM Apr 24, 2024Observed: 1510.02 ft at 1:30AM Apr 24, 2024Observed: 1510.01 ft at 1:45AM Apr 24, 2024Observed: 1510.01 ft at 2:00AM Apr 24, 2024Observed: 1510.01 ft at 2:15AM Apr 24, 2024Observed: 1510 ft at 2:30AM Apr 24, 2024Observed: 1510 ft at 2:45AM Apr 24, 2024Observed: 1510 ft at 3:00AM Apr 24, 2024Observed: 1509.99 ft at 3:15AM Apr 24, 2024Observed: 1509.99 ft at 3:30AM Apr 24, 2024Observed: 1509.99 ft at 3:45AM Apr 24, 2024Observed: 1509.99 ft at 4:00AM Apr 24, 2024Observed: 1509.98 ft at 4:15AM Apr 24, 2024Observed: 1509.98 ft at 4:30AM Apr 24, 2024Observed: 1509.98 ft at 4:45AM Apr 24, 2024Observed: 1509.97 ft at 5:00AM Apr 24, 2024Observed: 1509.97 ft at 5:15AM Apr 24, 2024Observed: 1509.97 ft at 5:30AM Apr 24, 2024Observed: 1509.97 ft at 5:45AM Apr 24, 2024Observed: 1509.97 ft at 6:00AM Apr 24, 2024Observed: 1509.96 ft at 6:15AM Apr 24, 2024Observed: 1509.96 ft at 6:30AM Apr 24, 2024Observed: 1509.96 ft at 6:45AM Apr 24, 2024Observed: 1509.95 ft at 7:00AM Apr 24, 2024Observed: 1509.95 ft at 7:15AM Apr 24, 2024Observed: 1509.95 ft at 7:30AM Apr 24, 2024Observed: 1509.94 ft at 7:45AM Apr 24, 2024Observed: 1509.94 ft at 8:00AM Apr 24, 2024Observed: 1509.94 ft at 8:15AM Apr 24, 2024Observed: 1509.93 ft at 8:30AM Apr 24, 2024Observed: 1509.93 ft at 8:45AM Apr 24, 2024Observed: 1509.93 ft at 9:00AM Apr 24, 2024Observed: 1509.93 ft at 9:15AM Apr 24, 2024Observed: 1509.94 ft at 9:30AM Apr 24, 2024Observed: 1509.95 ft at 9:45AM Apr 24, 2024Observed: 1509.95 ft at 10:00AM Apr 24, 2024Observed: 1509.95 ft at 10:15AM Apr 24, 2024Observed: 1509.95 ft at 10:30AM Apr 24, 2024Observed: 1509.94 ft at 10:45AM Apr 24, 2024Observed: 1509.95 ft at 11:00AM Apr 24, 2024Observed: 1509.95 ft at 11:15AM Apr 24, 2024Observed: 1509.94 ft at 11:30AM Apr 24, 2024Observed: 1509.94 ft at 11:45AM Apr 24, 2024Observed: 1509.94 ft at 12:00PM Apr 24, 2024Observed: 1509.95 ft at 12:15PM Apr 24, 2024Observed: 1509.95 ft at 12:30PM Apr 24, 2024Observed: 1509.95 ft at 12:45PM Apr 24, 2024Observed: 1509.95 ft at 1:00PM Apr 24, 2024Observed: 1509.95 ft at 1:15PM Apr 24, 2024Observed: 1509.95 ft at 1:30PM Apr 24, 2024Observed: 1509.95 ft at 1:45PM Apr 24, 2024Observed: 1509.95 ft at 2:00PM Apr 24, 2024Observed: 1509.96 ft at 2:15PM Apr 24, 2024Observed: 1509.96 ft at 2:30PM Apr 24, 2024Observed: 1509.96 ft at 2:45PM Apr 24, 2024Observed: 1509.96 ft at 3:00PM Apr 24, 2024Observed: 1509.96 ft at 3:15PM Apr 24, 2024Observed: 1509.96 ft at 3:30PM Apr 24, 2024Observed: 1509.96 ft at 3:45PM Apr 24, 2024Observed: 1509.96 ft at 4:00PM Apr 24, 2024Observed: 1509.96 ft at 4:15PM Apr 24, 2024Observed: 1509.95 ft at 4:30PM Apr 24, 2024Observed: 1509.95 ft at 4:45PM Apr 24, 2024Observed: 1509.96 ft at 5:00PM Apr 24, 2024Observed: 1509.95 ft at 5:15PM Apr 24, 2024Observed: 1509.95 ft at 5:30PM Apr 24, 2024Observed: 1509.94 ft at 5:45PM Apr 24, 2024Observed: 1509.94 ft at 6:00PM Apr 24, 2024Observed: 1509.93 ft at 6:15PM Apr 24, 2024Observed: 1509.93 ft at 6:30PM Apr 24, 2024Observed: 1509.94 ft at 6:45PM Apr 24, 2024Observed: 1509.93 ft at 7:00PM Apr 24, 2024Observed: 1509.93 ft at 7:15PM Apr 24, 2024Observed: 1509.92 ft at 7:30PM Apr 24, 2024Observed: 1509.93 ft at 7:45PM Apr 24, 2024Observed: 1509.93 ft at 8:00PM Apr 24, 2024Observed: 1509.92 ft at 8:15PM Apr 24, 2024Observed: 1509.93 ft at 8:30PM Apr 24, 2024Observed: 1509.92 ft at 8:45PM Apr 24, 2024Observed: 1509.92 ft at 9:00PM Apr 24, 2024Observed: 1509.92 ft at 9:15PM Apr 24, 2024Observed: 1509.92 ft at 9:30PM Apr 24, 2024Observed: 1509.92 ft at 9:45PM Apr 24, 2024Observed: 1509.92 ft at 10:00PM Apr 24, 2024Observed: 1509.92 ft at 10:15PM Apr 24, 2024Observed: 1509.91 ft at 10:30PM Apr 24, 2024Observed: 1509.91 ft at 10:45PM Apr 24, 2024Observed: 1509.91 ft at 11:00PM Apr 24, 2024Observed: 1509.9 ft at 11:15PM Apr 24, 2024Observed: 1509.91 ft at 11:30PM Apr 24, 2024Observed: 1509.9 ft at 11:45PM Apr 24, 2024Observed: 1509.9 ft at 12:00AM Apr 25, 2024Observed: 1509.89 ft at 12:15AM Apr 25, 2024Observed: 1509.89 ft at 12:30AM Apr 25, 2024Observed: 1509.89 ft at 12:45AM Apr 25, 2024Observed: 1509.89 ft at 1:00AM Apr 25, 2024Observed: 1509.89 ft at 1:15AM Apr 25, 2024Observed: 1509.89 ft at 1:30AM Apr 25, 2024Observed: 1509.89 ft at 1:45AM Apr 25, 2024Observed: 1509.88 ft at 2:00AM Apr 25, 2024Observed: 1509.88 ft at 2:15AM Apr 25, 2024Observed: 1509.88 ft at 2:30AM Apr 25, 2024Observed: 1509.88 ft at 2:45AM Apr 25, 2024Observed: 1509.86 ft at 3:00AM Apr 25, 2024Observed: 1509.87 ft at 3:15AM Apr 25, 2024Observed: 1509.88 ft at 3:30AM Apr 25, 2024Observed: 1509.88 ft at 3:45AM Apr 25, 2024Observed: 1509.87 ft at 4:00AM Apr 25, 2024Observed: 1509.87 ft at 4:15AM Apr 25, 2024Observed: 1509.87 ft at 4:30AM Apr 25, 2024Observed: 1509.87 ft at 4:45AM Apr 25, 2024Observed: 1509.86 ft at 5:00AM Apr 25, 2024Observed: 1509.86 ft at 5:15AM Apr 25, 2024Observed: 1509.86 ft at 5:30AM Apr 25, 2024Observed: 1509.86 ft at 5:45AM Apr 25, 2024Observed: 1509.85 ft at 6:00AM Apr 25, 2024Observed: 1509.86 ft at 6:15AM Apr 25, 2024Observed: 1509.85 ft at 6:30AM Apr 25, 2024Observed: 1509.85 ft at 6:45AM Apr 25, 2024Observed: 1509.84 ft at 7:00AM Apr 25, 2024Observed: 1509.85 ft at 7:15AM Apr 25, 2024Observed: 1509.84 ft at 7:30AM Apr 25, 2024Observed: 1509.84 ft at 7:45AM Apr 25, 2024Observed: 1509.83 ft at 8:00AM Apr 25, 2024South Dakota DANREGAS2(plotting HGIRG) Graph Created (9:05AM Apr 25, 2024)ObservedLatest observed value: 1509.83 ft at 8:00 AM CDT 25-Apr-2024. Flood Stage is 1516.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: No forecasts are available for this location

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

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Upstream Gauge - above Flandreau Upstream Gauge Downstream Gauge Downstream Gauge - at Trent
Flood Categories (in feet)
Major Flood Stage: 1521
Moderate Flood Stage: 1519
Flood Stage: 1516.5
Action Stage: 1515
Low Stage (in feet): -9999

Historic Crests
(1) 1,524.20 ft on 09/12/2019
(2) 1,522.48 ft on 03/23/2019
(3) 1,520.30 ft on 04/26/2018
(4) 1,518.60 ft on 04/24/2018
(5) 1,517.64 ft on 03/13/2020
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 1,517.09 ft on 04/15/2023
(2) 1,517.64 ft on 03/13/2020
(3) 1,524.20 ft on 09/12/2019
(4) 1,522.48 ft on 03/23/2019
(5) 1,520.30 ft on 04/26/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
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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
1527 the bridge on 478th Avenue is overtopped.
1524 The bridge on 2nd Street is overtopped.
1523 The brige on Highway 34 is overtopped, and water reaches the bottom of the bridge on 478th Avenue.
1522 Water reaches the bottom of the brige on 2nd Street and the ballfield at Egan Park floods.
1521 Highway 34 begins to flood, and 478th Avenue north of the bridge begins to flood.
1519 Water is across the road on both sides of the bridge by the Egan Park, and water reaches the bottom of the bridge on Highway 34.
1517.5 City park in Egan begins to flood
1516.5 Flooding begins to affect agricultural lands around Egan.
1515 The lowest banks overflow near Highway 34 and also near 479th Avenue.
Photos
(1) Downstream View (8/17/2023)
(2) Upstream View (8/17/2023)
About This Location Collapse

Latitude: 44.007222° N, Longitude: 96.629167° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 1516.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 0.00 1516.50 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  
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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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