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Hydrograph River at a Glance Download
Big Sioux River near Brookings Stage (ft)Flow (cfs)Observed: 7.51 ft at 5:00AM Aug 15, 2019Observed: 7.54 ft at 5:15AM Aug 15, 2019Observed: 7.52 ft at 5:30AM Aug 15, 2019Observed: 7.5 ft at 5:45AM Aug 15, 2019Observed: 7.5 ft at 6:00AM Aug 15, 2019Observed: 7.51 ft at 6:15AM Aug 15, 2019Observed: 7.48 ft at 6:30AM Aug 15, 2019Observed: 7.53 ft at 6:45AM Aug 15, 2019Observed: 7.53 ft at 7:00AM Aug 15, 2019Observed: 7.52 ft at 7:15AM Aug 15, 2019Observed: 7.48 ft at 7:30AM Aug 15, 2019Observed: 7.48 ft at 7:45AM Aug 15, 2019Observed: 7.51 ft at 8:00AM Aug 15, 2019Observed: 7.5 ft at 8:15AM Aug 15, 2019Observed: 7.51 ft at 8:30AM Aug 15, 2019Observed: 7.51 ft at 8:45AM Aug 15, 2019Observed: 7.49 ft at 9:00AM Aug 15, 2019Observed: 7.5 ft at 9:15AM Aug 15, 2019Observed: 7.5 ft at 9:30AM Aug 15, 2019Observed: 7.5 ft at 9:45AM Aug 15, 2019Observed: 7.5 ft at 10:00AM Aug 15, 2019Observed: 7.53 ft at 10:15AM Aug 15, 2019Observed: 7.53 ft at 10:30AM Aug 15, 2019Observed: 7.51 ft at 10:45AM Aug 15, 2019Observed: 7.51 ft at 11:00AM Aug 15, 2019Observed: 7.5 ft at 11:15AM Aug 15, 2019Observed: 7.52 ft at 11:30AM Aug 15, 2019Observed: 7.53 ft at 11:45AM Aug 15, 2019Observed: 7.53 ft at 12:00PM Aug 15, 2019Observed: 7.49 ft at 12:15PM Aug 15, 2019Observed: 7.5 ft at 12:30PM Aug 15, 2019Observed: 7.49 ft at 12:45PM Aug 15, 2019Observed: 7.52 ft at 1:00PM Aug 15, 2019Observed: 7.5 ft at 1:15PM Aug 15, 2019Observed: 7.51 ft at 1:30PM Aug 15, 2019Observed: 7.5 ft at 1:45PM Aug 15, 2019Observed: 7.5 ft at 2:00PM Aug 15, 2019Observed: 7.5 ft at 2:15PM Aug 15, 2019Observed: 7.51 ft at 2:30PM Aug 15, 2019Observed: 7.48 ft at 2:45PM Aug 15, 2019Observed: 7.48 ft at 3:00PM Aug 15, 2019Observed: 7.48 ft at 3:15PM Aug 15, 2019Observed: 7.5 ft at 3:30PM Aug 15, 2019Observed: 7.5 ft at 3:45PM Aug 15, 2019Observed: 7.48 ft at 4:00PM Aug 15, 2019Observed: 7.47 ft at 4:15PM Aug 15, 2019Observed: 7.46 ft at 4:30PM Aug 15, 2019Observed: 7.49 ft at 4:45PM Aug 15, 2019Observed: 7.48 ft at 5:00PM Aug 15, 2019Observed: 7.48 ft at 5:15PM Aug 15, 2019Observed: 7.48 ft at 5:16PM Aug 15, 2019Observed: 7.48 ft at 5:30PM Aug 15, 2019Observed: 7.48 ft at 5:31PM Aug 15, 2019Observed: 7.5 ft at 5:45PM Aug 15, 2019Observed: 7.5 ft at 5:46PM Aug 15, 2019Observed: 7.49 ft at 6:00PM Aug 15, 2019Observed: 7.49 ft at 6:15PM Aug 15, 2019Observed: 7.47 ft at 6:30PM Aug 15, 2019Observed: 7.48 ft at 6:45PM Aug 15, 2019Observed: 7.45 ft at 7:00PM Aug 15, 2019Observed: 7.48 ft at 7:15PM Aug 15, 2019Observed: 7.51 ft at 7:30PM Aug 15, 2019Observed: 7.52 ft at 7:45PM Aug 15, 2019Observed: 7.55 ft at 8:00PM Aug 15, 2019Observed: 7.52 ft at 8:15PM Aug 15, 2019Observed: 7.5 ft at 8:30PM Aug 15, 2019Observed: 7.53 ft at 8:45PM Aug 15, 2019Observed: 7.54 ft at 9:00PM Aug 15, 2019Observed: 7.55 ft at 9:15PM Aug 15, 2019Observed: 7.54 ft at 9:30PM Aug 15, 2019Observed: 7.53 ft at 9:45PM Aug 15, 2019Observed: 7.55 ft at 10:00PM Aug 15, 2019Observed: 7.53 ft at 10:15PM Aug 15, 2019Observed: 7.54 ft at 10:30PM Aug 15, 2019Observed: 7.54 ft at 10:45PM Aug 15, 2019Observed: 7.51 ft at 11:00PM Aug 15, 2019Observed: 7.52 ft at 11:15PM Aug 15, 2019Observed: 7.55 ft at 11:30PM Aug 15, 2019Observed: 7.52 ft at 11:45PM Aug 15, 2019Observed: 7.52 ft at 12:00AM Aug 16, 2019Observed: 7.53 ft at 12:15AM Aug 16, 2019Observed: 7.53 ft at 12:30AM Aug 16, 2019Observed: 7.53 ft at 12:45AM Aug 16, 2019Observed: 7.51 ft at 1:00AM Aug 16, 2019Observed: 7.52 ft at 1:15AM Aug 16, 2019Observed: 7.5 ft at 1:30AM Aug 16, 2019Observed: 7.52 ft at 1:45AM Aug 16, 2019Observed: 7.53 ft at 2:00AM Aug 16, 2019Observed: 7.51 ft at 2:15AM Aug 16, 2019Observed: 7.51 ft at 2:30AM Aug 16, 2019Observed: 7.52 ft at 2:45AM Aug 16, 2019Observed: 7.53 ft at 3:00AM Aug 16, 2019Observed: 7.51 ft at 3:15AM Aug 16, 2019Observed: 7.49 ft at 3:30AM Aug 16, 2019Observed: 7.53 ft at 3:45AM Aug 16, 2019Observed: 7.53 ft at 4:00AM Aug 16, 2019Observed: 7.52 ft at 4:15AM Aug 16, 2019Observed: 7.52 ft at 4:30AM Aug 16, 2019Observed: 7.52 ft at 4:45AM Aug 16, 2019Observed: 7.53 ft at 5:00AM Aug 16, 2019Observed: 7.51 ft at 5:15AM Aug 16, 2019Observed: 7.52 ft at 5:30AM Aug 16, 2019Observed: 7.53 ft at 5:45AM Aug 16, 2019Observed: 7.53 ft at 6:00AM Aug 16, 2019Observed: 7.51 ft at 6:15AM Aug 16, 2019Observed: 7.53 ft at 6:30AM Aug 16, 2019Observed: 7.55 ft at 6:45AM Aug 16, 2019Observed: 7.52 ft at 7:00AM Aug 16, 2019Observed: 7.51 ft at 7:15AM Aug 16, 2019Observed: 7.54 ft at 7:30AM Aug 16, 2019Observed: 7.51 ft at 7:45AM Aug 16, 2019Observed: 7.53 ft at 8:00AM Aug 16, 2019Observed: 7.52 ft at 8:15AM Aug 16, 2019Observed: 7.52 ft at 8:30AM Aug 16, 2019Observed: 7.52 ft at 8:45AM Aug 16, 2019Observed: 7.51 ft at 9:00AM Aug 16, 2019Observed: 7.52 ft at 9:15AM Aug 16, 2019Observed: 7.52 ft at 9:16AM Aug 16, 2019Observed: 7.56 ft at 9:30AM Aug 16, 2019Observed: 7.56 ft at 9:31AM Aug 16, 2019Observed: 7.55 ft at 9:45AM Aug 16, 2019Observed: 7.55 ft at 9:46AM Aug 16, 2019Observed: 7.49 ft at 10:00AM Aug 16, 2019Observed: 7.55 ft at 10:15AM Aug 16, 2019Observed: 7.51 ft at 10:30AM Aug 16, 2019Observed: 7.49 ft at 10:45AM Aug 16, 2019Observed: 7.53 ft at 11:00AM Aug 16, 2019Observed: 7.54 ft at 11:15AM Aug 16, 2019Observed: 7.52 ft at 11:30AM Aug 16, 2019Observed: 7.56 ft at 11:45AM Aug 16, 2019Observed: 7.51 ft at 12:00PM Aug 16, 2019Observed: 7.53 ft at 12:15PM Aug 16, 2019Observed: 7.53 ft at 12:30PM Aug 16, 2019Observed: 7.53 ft at 12:45PM Aug 16, 2019Observed: 7.53 ft at 1:00PM Aug 16, 2019Observed: 7.54 ft at 1:15PM Aug 16, 2019Observed: 7.52 ft at 1:30PM Aug 16, 2019Observed: 7.51 ft at 1:45PM Aug 16, 2019Observed: 7.5 ft at 2:00PM Aug 16, 2019Observed: 7.49 ft at 2:15PM Aug 16, 2019Observed: 7.52 ft at 2:30PM Aug 16, 2019Observed: 7.52 ft at 2:45PM Aug 16, 2019Observed: 7.54 ft at 3:00PM Aug 16, 2019Observed: 7.51 ft at 3:15PM Aug 16, 2019Observed: 7.53 ft at 3:30PM Aug 16, 2019Observed: 7.53 ft at 3:45PM Aug 16, 2019Observed: 7.52 ft at 4:00PM Aug 16, 2019Observed: 7.51 ft at 4:15PM Aug 16, 2019Observed: 7.55 ft at 4:30PM Aug 16, 2019Observed: 7.53 ft at 4:45PM Aug 16, 2019Observed: 7.54 ft at 5:00PM Aug 16, 2019Observed: 7.51 ft at 5:15PM Aug 16, 2019Observed: 7.51 ft at 5:16PM Aug 16, 2019Observed: 7.51 ft at 5:30PM Aug 16, 2019Observed: 7.51 ft at 5:31PM Aug 16, 2019Observed: 7.51 ft at 5:45PM Aug 16, 2019Observed: 7.51 ft at 5:46PM Aug 16, 2019Observed: 7.49 ft at 6:00PM Aug 16, 2019Observed: 7.51 ft at 6:15PM Aug 16, 2019Observed: 7.52 ft at 6:30PM Aug 16, 2019Observed: 7.53 ft at 6:45PM Aug 16, 2019Observed: 7.5 ft at 7:00PM Aug 16, 2019Observed: 7.51 ft at 7:15PM Aug 16, 2019Observed: 7.51 ft at 7:30PM Aug 16, 2019Observed: 7.51 ft at 7:45PM Aug 16, 2019Observed: 7.53 ft at 8:00PM Aug 16, 2019Observed: 7.49 ft at 8:15PM Aug 16, 2019Observed: 7.52 ft at 8:30PM Aug 16, 2019Observed: 7.5 ft at 8:45PM Aug 16, 2019Observed: 7.52 ft at 9:00PM Aug 16, 2019Observed: 7.49 ft at 9:15PM Aug 16, 2019Observed: 7.5 ft at 9:30PM Aug 16, 2019Observed: 7.51 ft at 9:45PM Aug 16, 2019Observed: 7.51 ft at 10:00PM Aug 16, 2019Observed: 7.51 ft at 10:15PM Aug 16, 2019Observed: 7.51 ft at 10:30PM Aug 16, 2019Observed: 7.52 ft at 10:45PM Aug 16, 2019Observed: 7.52 ft at 11:00PM Aug 16, 2019Observed: 7.5 ft at 11:15PM Aug 16, 2019Observed: 7.5 ft at 11:30PM Aug 16, 2019Observed: 7.5 ft at 11:45PM Aug 16, 2019Observed: 7.52 ft at 12:00AM Aug 17, 2019Observed: 7.51 ft at 12:15AM Aug 17, 2019Observed: 7.51 ft at 12:30AM Aug 17, 2019Observed: 7.53 ft at 12:45AM Aug 17, 2019Observed: 7.52 ft at 1:00AM Aug 17, 2019Observed: 7.5 ft at 1:15AM Aug 17, 2019Observed: 7.5 ft at 1:16AM Aug 17, 2019Observed: 7.52 ft at 1:30AM Aug 17, 2019Observed: 7.52 ft at 1:31AM Aug 17, 2019Observed: 7.51 ft at 1:45AM Aug 17, 2019Observed: 7.51 ft at 1:46AM Aug 17, 2019Observed: 7.52 ft at 2:00AM Aug 17, 2019Observed: 7.52 ft at 2:15AM Aug 17, 2019Observed: 7.52 ft at 2:30AM Aug 17, 2019Observed: 7.52 ft at 2:45AM Aug 17, 2019Observed: 7.53 ft at 3:00AM Aug 17, 2019Observed: 7.52 ft at 3:15AM Aug 17, 2019Observed: 7.53 ft at 3:30AM Aug 17, 2019Observed: 7.52 ft at 3:45AM Aug 17, 2019Observed: 7.49 ft at 4:00AM Aug 17, 2019Observed: 7.51 ft at 4:15AM Aug 17, 2019Observed: 7.5 ft at 4:30AM Aug 17, 2019Observed: 7.52 ft at 4:45AM Aug 17, 2019Observed: 7.52 ft at 5:00AM Aug 17, 2019Observed: 7.5 ft at 5:15AM Aug 17, 2019Observed: 7.52 ft at 5:30AM Aug 17, 2019Observed: 7.54 ft at 5:45AM Aug 17, 2019Observed: 7.52 ft at 6:00AM Aug 17, 2019Observed: 7.52 ft at 6:15AM Aug 17, 2019Observed: 7.5 ft at 6:30AM Aug 17, 2019Observed: 7.5 ft at 6:45AM Aug 17, 2019Observed: 7.52 ft at 7:00AM Aug 17, 2019Observed: 7.52 ft at 7:15AM Aug 17, 2019Observed: 7.52 ft at 7:30AM Aug 17, 2019Observed: 7.53 ft at 7:45AM Aug 17, 2019Observed: 7.53 ft at 8:00AM Aug 17, 2019Observed: 7.53 ft at 8:15AM Aug 17, 2019Observed: 7.52 ft at 8:30AM Aug 17, 2019Observed: 7.53 ft at 8:45AM Aug 17, 2019Observed: 7.52 ft at 9:00AM Aug 17, 2019Observed: 7.54 ft at 9:15AM Aug 17, 2019Observed: 7.54 ft at 9:16AM Aug 17, 2019Observed: 7.55 ft at 9:30AM Aug 17, 2019Observed: 7.55 ft at 9:31AM Aug 17, 2019Observed: 7.53 ft at 9:45AM Aug 17, 2019Observed: 7.53 ft at 9:46AM Aug 17, 2019Observed: 7.54 ft at 10:00AM Aug 17, 2019Observed: 7.53 ft at 10:15AM Aug 17, 2019Observed: 7.51 ft at 10:30AM Aug 17, 2019Observed: 7.52 ft at 10:45AM Aug 17, 2019Observed: 7.53 ft at 11:00AM Aug 17, 2019Observed: 7.5 ft at 11:15AM Aug 17, 2019Observed: 7.52 ft at 11:30AM Aug 17, 2019Observed: 7.52 ft at 11:45AM Aug 17, 2019Observed: 7.53 ft at 12:00PM Aug 17, 2019Observed: 7.51 ft at 12:15PM Aug 17, 2019Observed: 7.51 ft at 12:30PM Aug 17, 2019Observed: 7.49 ft at 12:45PM Aug 17, 2019Observed: 7.53 ft at 1:00PM Aug 17, 2019Observed: 7.53 ft at 1:15PM Aug 17, 2019Observed: 7.54 ft at 1:30PM Aug 17, 2019Observed: 7.49 ft at 1:45PM Aug 17, 2019Observed: 7.5 ft at 2:00PM Aug 17, 2019Observed: 7.5 ft at 2:15PM Aug 17, 2019Observed: 7.52 ft at 2:30PM Aug 17, 2019Observed: 7.51 ft at 2:45PM Aug 17, 2019Observed: 7.5 ft at 3:00PM Aug 17, 2019Observed: 7.51 ft at 3:15PM Aug 17, 2019Observed: 7.5 ft at 3:30PM Aug 17, 2019Observed: 7.52 ft at 3:45PM Aug 17, 2019Observed: 7.51 ft at 4:00PM Aug 17, 2019Observed: 7.48 ft at 4:15PM Aug 17, 2019Observed: 7.49 ft at 4:30PM Aug 17, 2019Observed: 7.49 ft at 4:45PM Aug 17, 2019Observed: 7.49 ft at 5:00PM Aug 17, 2019Observed: 7.51 ft at 5:15PM Aug 17, 2019Observed: 7.51 ft at 5:16PM Aug 17, 2019Observed: 7.5 ft at 5:30PM Aug 17, 2019Observed: 7.5 ft at 5:31PM Aug 17, 2019Observed: 7.51 ft at 5:45PM Aug 17, 2019Observed: 7.51 ft at 5:46PM Aug 17, 2019Observed: 7.51 ft at 6:00PM Aug 17, 2019Observed: 7.47 ft at 6:15PM Aug 17, 2019Observed: 7.49 ft at 6:30PM Aug 17, 2019Observed: 7.51 ft at 6:45PM Aug 17, 2019Observed: 7.5 ft at 7:00PM Aug 17, 2019Observed: 7.49 ft at 7:15PM Aug 17, 2019Observed: 7.5 ft at 7:30PM Aug 17, 2019Observed: 7.48 ft at 7:45PM Aug 17, 2019Observed: 7.48 ft at 8:00PM Aug 17, 2019Observed: 7.48 ft at 8:15PM Aug 17, 2019Observed: 7.49 ft at 8:30PM Aug 17, 2019Observed: 7.5 ft at 8:45PM Aug 17, 2019Observed: 7.48 ft at 9:00PM Aug 17, 2019Observed: 7.48 ft at 9:15PM Aug 17, 2019Observed: 7.48 ft at 9:30PM Aug 17, 2019Observed: 7.48 ft at 9:45PM Aug 17, 2019Observed: 7.49 ft at 10:00PM Aug 17, 2019Observed: 7.63 ft at 10:15PM Aug 17, 2019Observed: 7.71 ft at 10:30PM Aug 17, 2019Observed: 7.73 ft at 10:45PM Aug 17, 2019Observed: 7.81 ft at 11:00PM Aug 17, 2019Observed: 7.82 ft at 11:15PM Aug 17, 2019Observed: 7.87 ft at 11:30PM Aug 17, 2019Observed: 7.85 ft at 11:45PM Aug 17, 2019Observed: 7.9 ft at 12:00AM Aug 18, 2019Observed: 7.95 ft at 12:15AM Aug 18, 2019Observed: 7.96 ft at 12:30AM Aug 18, 2019Observed: 8.03 ft at 12:45AM Aug 18, 2019Observed: 8.01 ft at 1:00AM Aug 18, 2019Observed: 8.03 ft at 1:15AM Aug 18, 2019Observed: 8.07 ft at 1:30AM Aug 18, 2019Observed: 8.06 ft at 1:45AM Aug 18, 2019Observed: 8.13 ft at 2:00AM Aug 18, 2019Observed: 8.12 ft at 2:15AM Aug 18, 2019Observed: 8.15 ft at 2:30AM Aug 18, 2019Observed: 8.16 ft at 2:45AM Aug 18, 2019Observed: 8.18 ft at 3:00AM Aug 18, 2019Observed: 8.19 ft at 3:15AM Aug 18, 2019Observed: 8.22 ft at 3:30AM Aug 18, 2019Observed: 8.22 ft at 3:45AM Aug 18, 2019Observed: 8.24 ft at 4:00AM Aug 18, 2019Observed: 8.25 ft at 4:15AM Aug 18, 2019Observed: 8.27 ft at 4:30AM Aug 18, 2019Observed: 8.26 ft at 4:45AM Aug 18, 2019Observed: 8.29 ft at 5:00AM Aug 18, 2019Observed: 8.27 ft at 5:15AM Aug 18, 2019Observed: 8.3 ft at 5:30AM Aug 18, 2019Observed: 8.3 ft at 5:45AM Aug 18, 2019Observed: 8.33 ft at 6:00AM Aug 18, 2019Observed: 8.34 ft at 6:15AM Aug 18, 2019Observed: 8.33 ft at 6:30AM Aug 18, 2019Observed: 8.37 ft at 6:45AM Aug 18, 2019Observed: 8.37 ft at 7:00AM Aug 18, 2019Observed: 8.39 ft at 7:15AM Aug 18, 2019Observed: 8.4 ft at 7:30AM Aug 18, 2019Observed: 8.43 ft at 7:45AM Aug 18, 2019Observed: 8.4 ft at 8:00AM Aug 18, 2019Observed: 8.45 ft at 8:15AM Aug 18, 2019Observed: 8.45 ft at 8:30AM Aug 18, 2019Observed: 8.48 ft at 8:45AM Aug 18, 2019Observed: 8.5 ft at 9:00AM Aug 18, 2019Observed: 8.51 ft at 9:15AM Aug 18, 2019Observed: 8.51 ft at 9:30AM Aug 18, 2019Observed: 8.51 ft at 9:45AM Aug 18, 2019Observed: 8.54 ft at 10:00AM Aug 18, 2019Observed: 8.56 ft at 10:15AM Aug 18, 2019Observed: 8.56 ft at 10:30AM Aug 18, 2019Observed: 8.58 ft at 10:45AM Aug 18, 2019Observed: 8.59 ft at 11:00AM Aug 18, 2019Observed: 8.6 ft at 11:15AM Aug 18, 2019Observed: 8.63 ft at 11:30AM Aug 18, 2019Observed: 8.63 ft at 11:45AM Aug 18, 2019Observed: 8.64 ft at 12:00PM Aug 18, 2019Observed: 8.68 ft at 12:15PM Aug 18, 2019Observed: 8.68 ft at 12:30PM Aug 18, 2019Observed: 8.7 ft at 12:45PM Aug 18, 2019Observed: 8.69 ft at 1:00PM Aug 18, 2019Observed: 8.71 ft at 1:15PM Aug 18, 2019Observed: 8.71 ft at 1:30PM Aug 18, 2019Observed: 8.75 ft at 1:45PM Aug 18, 2019Observed: 8.76 ft at 2:00PM Aug 18, 2019Observed: 8.76 ft at 2:15PM Aug 18, 2019Observed: 8.78 ft at 2:30PM Aug 18, 2019Observed: 8.8 ft at 2:45PM Aug 18, 2019Observed: 8.79 ft at 3:00PM Aug 18, 2019Observed: 8.8 ft at 3:15PM Aug 18, 2019Observed: 8.82 ft at 3:30PM Aug 18, 2019Observed: 8.81 ft at 3:45PM Aug 18, 2019Observed: 8.84 ft at 4:00PM Aug 18, 2019Observed: 8.85 ft at 4:15PM Aug 18, 2019Observed: 8.86 ft at 4:30PM Aug 18, 2019Observed: 8.9 ft at 4:45PM Aug 18, 2019Observed: 8.91 ft at 5:00PM Aug 18, 2019Observed: 8.89 ft at 5:15PM Aug 18, 2019Observed: 8.91 ft at 5:30PM Aug 18, 2019Observed: 8.91 ft at 5:31PM Aug 18, 2019Observed: 8.94 ft at 5:45PM Aug 18, 2019Observed: 8.94 ft at 5:46PM Aug 18, 2019Observed: 8.94 ft at 6:00PM Aug 18, 2019Observed: 8.94 ft at 6:01PM Aug 18, 2019Observed: 8.93 ft at 6:15PM Aug 18, 2019Observed: 8.97 ft at 6:30PM Aug 18, 2019Observed: 8.99 ft at 6:45PM Aug 18, 2019Observed: 9.03 ft at 7:00PM Aug 18, 2019Observed: 9 ft at 7:15PM Aug 18, 2019Observed: 9.01 ft at 7:30PM Aug 18, 2019Observed: 8.99 ft at 7:45PM Aug 18, 2019Observed: 9.03 ft at 8:00PM Aug 18, 2019Observed: 9.07 ft at 8:15PM Aug 18, 2019Observed: 9.09 ft at 8:30PM Aug 18, 2019Observed: 9.05 ft at 8:45PM Aug 18, 2019Observed: 9.06 ft at 9:00PM Aug 18, 2019Observed: 9.12 ft at 9:15PM Aug 18, 2019Observed: 9.09 ft at 9:30PM Aug 18, 2019Observed: 9.13 ft at 9:45PM Aug 18, 2019Observed: 9.15 ft at 10:00PM Aug 18, 2019Observed: 9.16 ft at 10:15PM Aug 18, 2019Observed: 9.11 ft at 10:30PM Aug 18, 2019Observed: 9.15 ft at 10:45PM Aug 18, 2019Observed: 9.18 ft at 11:00PM Aug 18, 2019Observed: 9.2 ft at 11:15PM Aug 18, 2019Observed: 9.21 ft at 11:30PM Aug 18, 2019Observed: 9.22 ft at 11:45PM Aug 18, 2019Observed: 9.23 ft at 12:00AM Aug 19, 2019Observed: 9.23 ft at 12:15AM Aug 19, 2019Observed: 9.25 ft at 12:30AM Aug 19, 2019Observed: 9.25 ft at 12:45AM Aug 19, 2019Observed: 9.28 ft at 1:00AM Aug 19, 2019Observed: 9.31 ft at 1:15AM Aug 19, 2019Observed: 9.28 ft at 1:30AM Aug 19, 2019Observed: 9.28 ft at 1:31AM Aug 19, 2019Observed: 9.32 ft at 1:45AM Aug 19, 2019Observed: 9.32 ft at 1:46AM Aug 19, 2019Observed: 9.35 ft at 2:00AM Aug 19, 2019Observed: 9.35 ft at 2:01AM Aug 19, 2019Observed: 9.36 ft at 2:15AM Aug 19, 2019Observed: 9.36 ft at 2:30AM Aug 19, 2019Observed: 9.35 ft at 2:45AM Aug 19, 2019Observed: 9.33 ft at 3:00AM Aug 19, 2019Observed: 9.36 ft at 3:15AM Aug 19, 2019Observed: 9.35 ft at 3:30AM Aug 19, 2019Observed: 9.39 ft at 3:45AM Aug 19, 2019Observed: 9.41 ft at 4:00AM Aug 19, 2019Observed: 9.4 ft at 4:15AM Aug 19, 2019Observed: 9.43 ft at 4:30AM Aug 19, 2019Observed: 9.43 ft at 4:45AM Aug 19, 2019Observed: 9.43 ft at 5:00AM Aug 19, 2019Observed: 9.42 ft at 5:15AM Aug 19, 2019Observed: 9.49 ft at 5:30AM Aug 19, 2019Observed: 9.52 ft at 5:45AM Aug 19, 2019Observed: 9.5 ft at 6:00AM Aug 19, 2019Observed: 9.51 ft at 6:15AM Aug 19, 2019Observed: 9.52 ft at 6:30AM Aug 19, 2019Observed: 9.5 ft at 6:45AM Aug 19, 2019Observed: 9.55 ft at 7:00AM Aug 19, 2019Observed: 9.53 ft at 7:15AM Aug 19, 2019Observed: 9.56 ft at 7:30AM Aug 19, 2019Observed: 9.58 ft at 7:45AM Aug 19, 2019Observed: 9.55 ft at 8:00AM Aug 19, 2019Observed: 9.59 ft at 8:15AM Aug 19, 2019Observed: 9.58 ft at 8:30AM Aug 19, 2019Observed: 9.64 ft at 8:45AM Aug 19, 2019Observed: 9.62 ft at 9:00AM Aug 19, 2019Observed: 9.63 ft at 9:15AM Aug 19, 2019Observed: 9.64 ft at 9:30AM Aug 19, 2019Observed: 9.66 ft at 9:45AM Aug 19, 2019Observed: 9.67 ft at 10:00AM Aug 19, 2019Observed: 9.67 ft at 10:15AM Aug 19, 2019Observed: 9.72 ft at 10:30AM Aug 19, 2019Observed: 9.7 ft at 10:45AM Aug 19, 2019Observed: 9.7 ft at 11:00AM Aug 19, 2019Observed: 9.72 ft at 11:15AM Aug 19, 2019Observed: 9.7 ft at 11:30AM Aug 19, 2019Observed: 9.74 ft at 11:45AM Aug 19, 2019Observed: 9.76 ft at 12:00PM Aug 19, 2019Observed: 9.7 ft at 12:15PM Aug 19, 2019Observed: 9.77 ft at 12:30PM Aug 19, 2019Observed: 9.75 ft at 12:45PM Aug 19, 2019Observed: 9.8 ft at 1:00PM Aug 19, 2019Observed: 9.81 ft at 1:15PM Aug 19, 2019Observed: 9.81 ft at 1:30PM Aug 19, 2019Observed: 9.8 ft at 1:45PM Aug 19, 2019Observed: 9.84 ft at 2:00PM Aug 19, 2019Observed: 9.78 ft at 2:15PM Aug 19, 2019Observed: 9.81 ft at 2:30PM Aug 19, 2019Observed: 9.85 ft at 2:45PM Aug 19, 2019Observed: 9.83 ft at 3:00PM Aug 19, 2019Observed: 9.82 ft at 3:15PM Aug 19, 2019Observed: 9.86 ft at 3:30PM Aug 19, 2019Observed: 9.83 ft at 3:45PM Aug 19, 2019Observed: 9.88 ft at 4:00PM Aug 19, 2019Observed: 9.88 ft at 4:15PM Aug 19, 2019Observed: 9.85 ft at 4:30PM Aug 19, 2019Observed: 9.82 ft at 4:45PM Aug 19, 2019Observed: 9.85 ft at 5:00PM Aug 19, 2019Observed: 9.86 ft at 5:15PM Aug 19, 2019Observed: 9.9 ft at 5:30PM Aug 19, 2019Observed: 9.9 ft at 5:31PM Aug 19, 2019Observed: 9.87 ft at 5:45PM Aug 19, 2019Observed: 9.87 ft at 5:46PM Aug 19, 2019Observed: 9.9 ft at 6:00PM Aug 19, 2019Observed: 9.9 ft at 6:01PM Aug 19, 2019Observed: 9.91 ft at 6:15PM Aug 19, 2019Observed: 9.87 ft at 6:30PM Aug 19, 2019Observed: 9.91 ft at 6:45PM Aug 19, 2019Observed: 9.91 ft at 7:00PM Aug 19, 2019Observed: 9.93 ft at 7:15PM Aug 19, 2019Observed: 9.91 ft at 7:30PM Aug 19, 2019Observed: 9.92 ft at 7:45PM Aug 19, 2019Observed: 9.94 ft at 8:00PM Aug 19, 2019Observed: 9.93 ft at 8:15PM Aug 19, 2019Observed: 9.94 ft at 8:30PM Aug 19, 2019Observed: 9.92 ft at 8:45PM Aug 19, 2019Observed: 9.96 ft at 9:00PM Aug 19, 2019Observed: 9.9 ft at 9:15PM Aug 19, 2019Observed: 9.94 ft at 9:30PM Aug 19, 2019Observed: 9.95 ft at 9:45PM Aug 19, 2019Observed: 9.93 ft at 10:00PM Aug 19, 2019Observed: 9.94 ft at 10:15PM Aug 19, 2019Observed: 9.95 ft at 10:30PM Aug 19, 2019Observed: 9.97 ft at 10:45PM Aug 19, 2019Observed: 10 ft at 11:00PM Aug 19, 2019Observed: 9.98 ft at 11:15PM Aug 19, 2019Observed: 10.02 ft at 11:30PM Aug 19, 2019Observed: 9.99 ft at 11:45PM Aug 19, 2019Observed: 10.01 ft at 12:00AM Aug 20, 2019Observed: 10.01 ft at 12:15AM Aug 20, 2019Observed: 10.03 ft at 12:30AM Aug 20, 2019Observed: 10.02 ft at 12:45AM Aug 20, 2019Observed: 10.01 ft at 1:00AM Aug 20, 2019Observed: 10.05 ft at 1:15AM Aug 20, 2019Observed: 9.96 ft at 1:30AM Aug 20, 2019Observed: 9.96 ft at 1:31AM Aug 20, 2019Observed: 10 ft at 1:45AM Aug 20, 2019Observed: 10 ft at 1:46AM Aug 20, 2019Observed: 10.01 ft at 2:00AM Aug 20, 2019Observed: 10.01 ft at 2:01AM Aug 20, 2019Observed: 10.01 ft at 2:15AM Aug 20, 2019Observed: 10.02 ft at 2:30AM Aug 20, 2019Observed: 10.02 ft at 2:45AM Aug 20, 2019Observed: 10.03 ft at 3:00AM Aug 20, 2019Observed: 10.06 ft at 3:15AM Aug 20, 2019Observed: 10.03 ft at 3:30AM Aug 20, 2019Observed: 9.98 ft at 3:45AM Aug 20, 2019Observed: 10.02 ft at 4:00AM Aug 20, 2019Observed: 10.02 ft at 4:15AM Aug 20, 2019Observed: 10.05 ft at 4:30AM Aug 20, 2019Observed: 9.99 ft at 4:45AM Aug 20, 2019Observed: 10.06 ft at 5:00AM Aug 20, 2019Observed: 10.06 ft at 5:15AM Aug 20, 2019Observed: 10.06 ft at 5:30AM Aug 20, 2019Observed: 10.08 ft at 5:45AM Aug 20, 2019Observed: 10.04 ft at 6:00AM Aug 20, 2019Observed: 10.06 ft at 6:15AM Aug 20, 2019Observed: 10.06 ft at 6:30AM Aug 20, 2019Observed: 10.06 ft at 6:45AM Aug 20, 2019Observed: 10.09 ft at 7:00AM Aug 20, 2019Observed: 10.11 ft at 7:15AM Aug 20, 2019Observed: 10.08 ft at 7:30AM Aug 20, 2019Observed: 10.1 ft at 7:45AM Aug 20, 2019Observed: 10.06 ft at 8:00AM Aug 20, 2019Observed: 10.09 ft at 8:15AM Aug 20, 2019Observed: 10.08 ft at 8:30AM Aug 20, 2019Observed: 10.12 ft at 8:45AM Aug 20, 2019Observed: 10.1 ft at 9:00AM Aug 20, 2019Observed: 10.08 ft at 9:15AM Aug 20, 2019Observed: 10.1 ft at 9:30AM Aug 20, 2019Observed: 10.1 ft at 9:31AM Aug 20, 2019Observed: 10.13 ft at 9:45AM Aug 20, 2019Observed: 10.13 ft at 9:46AM Aug 20, 2019Observed: 10.09 ft at 10:00AM Aug 20, 2019Observed: 10.09 ft at 10:01AM Aug 20, 2019Observed: 10.07 ft at 10:15AM Aug 20, 2019Observed: 10.13 ft at 10:30AM Aug 20, 2019Observed: 10.13 ft at 10:45AM Aug 20, 2019Observed: 10.11 ft at 11:00AM Aug 20, 2019Observed: 10.13 ft at 11:15AM Aug 20, 2019Observed: 10.13 ft at 11:30AM Aug 20, 2019Observed: 10.13 ft at 11:45AM Aug 20, 2019Observed: 10.13 ft at 12:00PM Aug 20, 2019Observed: 10.14 ft at 12:15PM Aug 20, 2019Observed: 10.13 ft at 12:30PM Aug 20, 2019Observed: 10.13 ft at 12:45PM Aug 20, 2019Observed: 10.13 ft at 1:00PM Aug 20, 2019Observed: 10.12 ft at 1:15PM Aug 20, 2019Observed: 10.14 ft at 1:30PM Aug 20, 2019Observed: 10.16 ft at 1:45PM Aug 20, 2019Observed: 10.16 ft at 2:00PM Aug 20, 2019Observed: 10.1 ft at 2:15PM Aug 20, 2019Highest Observation: 10.21 ft at 2:30PM Aug 20, 2019Observed: 10.14 ft at 2:45PM Aug 20, 2019Observed: 10.14 ft at 3:00PM Aug 20, 2019Observed: 10.19 ft at 3:15PM Aug 20, 2019Observed: 10.16 ft at 3:30PM Aug 20, 2019Observed: 10.18 ft at 3:45PM Aug 20, 2019Observed: 10.19 ft at 4:00PM Aug 20, 2019Observed: 10.18 ft at 4:15PM Aug 20, 2019Observed: 10.14 ft at 4:30PM Aug 20, 2019Observed: 10.18 ft at 4:45PM Aug 20, 2019Observed: 10.17 ft at 5:00PM Aug 20, 2019Observed: 10.2 ft at 5:15PM Aug 20, 2019Observed: 10.13 ft at 5:30PM Aug 20, 2019Observed: 10.1 ft at 5:45PM Aug 20, 2019Observed: 10.17 ft at 6:00PM Aug 20, 2019Observed: 10.17 ft at 6:15PM Aug 20, 2019Observed: 10.15 ft at 6:30PM Aug 20, 2019Observed: 10.14 ft at 6:45PM Aug 20, 2019Observed: 10.14 ft at 7:00PM Aug 20, 2019Observed: 10.17 ft at 7:15PM Aug 20, 2019Observed: 10.16 ft at 7:30PM Aug 20, 2019Observed: 10.13 ft at 7:45PM Aug 20, 2019Observed: 10.14 ft at 8:00PM Aug 20, 2019Observed: 10.17 ft at 8:15PM Aug 20, 2019Observed: 10.17 ft at 8:30PM Aug 20, 2019Observed: 10.16 ft at 8:45PM Aug 20, 2019Observed: 10.15 ft at 9:00PM Aug 20, 2019Observed: 10.1 ft at 9:15PM Aug 20, 2019Observed: 10.13 ft at 9:30PM Aug 20, 2019Observed: 10.16 ft at 9:45PM Aug 20, 2019Observed: 10.13 ft at 10:00PM Aug 20, 2019Observed: 10.12 ft at 10:15PM Aug 20, 2019Observed: 10.16 ft at 10:30PM Aug 20, 2019Observed: 10.16 ft at 10:45PM Aug 20, 2019Observed: 10.16 ft at 11:00PM Aug 20, 2019Observed: 10.14 ft at 11:15PM Aug 20, 2019Observed: 10.14 ft at 11:30PM Aug 20, 2019Observed: 10.14 ft at 11:45PM Aug 20, 2019Observed: 10.14 ft at 12:00AM Aug 21, 2019Observed: 10.13 ft at 12:15AM Aug 21, 2019Observed: 10.14 ft at 12:30AM Aug 21, 2019Observed: 10.12 ft at 12:45AM Aug 21, 2019Observed: 10.13 ft at 1:00AM Aug 21, 2019Observed: 10.14 ft at 1:15AM Aug 21, 2019Observed: 10.16 ft at 1:30AM Aug 21, 2019Observed: 10.16 ft at 1:31AM Aug 21, 2019Observed: 10.15 ft at 1:45AM Aug 21, 2019Observed: 10.15 ft at 1:46AM Aug 21, 2019Observed: 10.13 ft at 2:00AM Aug 21, 2019Observed: 10.13 ft at 2:01AM Aug 21, 2019Observed: 10.15 ft at 2:15AM Aug 21, 2019Observed: 10.12 ft at 2:30AM Aug 21, 2019Observed: 10.11 ft at 2:45AM Aug 21, 2019Observed: 10.12 ft at 3:00AM Aug 21, 2019Observed: 10.12 ft at 3:15AM Aug 21, 2019Observed: 10.13 ft at 3:30AM Aug 21, 2019Observed: 10.13 ft at 3:45AM Aug 21, 2019Observed: 10.12 ft at 4:00AM Aug 21, 2019Observed: 10.13 ft at 4:15AM Aug 21, 2019Observed: 10.16 ft at 4:30AM Aug 21, 2019Observed: 10.1 ft at 4:45AM Aug 21, 2019Observed: 10.14 ft at 5:00AM Aug 21, 2019Observed: 10.1 ft at 5:15AM Aug 21, 2019Observed: 10.11 ft at 5:30AM Aug 21, 2019Observed: 10.09 ft at 5:45AM Aug 21, 2019Observed: 10.09 ft at 6:00AM Aug 21, 2019Observed: 10.13 ft at 6:15AM Aug 21, 2019Observed: 10.05 ft at 6:30AM Aug 21, 2019Observed: 10.12 ft at 6:45AM Aug 21, 2019Observed: 10.1 ft at 7:00AM Aug 21, 2019Observed: 10.11 ft at 7:15AM Aug 21, 2019Observed: 10.1 ft at 7:30AM Aug 21, 2019Observed: 10.08 ft at 7:45AM Aug 21, 2019Observed: 10.07 ft at 8:00AM Aug 21, 2019Observed: 10.09 ft at 8:15AM Aug 21, 2019Observed: 10.06 ft at 8:30AM Aug 21, 2019Observed: 10.07 ft at 8:45AM Aug 21, 2019Observed: 10.06 ft at 9:00AM Aug 21, 2019Observed: 10.08 ft at 9:15AM Aug 21, 2019Observed: 10.12 ft at 9:30AM Aug 21, 2019Observed: 10.12 ft at 9:31AM Aug 21, 2019Observed: 10.06 ft at 9:45AM Aug 21, 2019Observed: 10.06 ft at 9:46AM Aug 21, 2019Observed: 10.08 ft at 10:00AM Aug 21, 2019Observed: 10.08 ft at 10:01AM Aug 21, 2019Observed: 10.09 ft at 10:15AM Aug 21, 2019Observed: 10.07 ft at 10:30AM Aug 21, 2019Observed: 10.05 ft at 10:45AM Aug 21, 2019Observed: 10.07 ft at 11:00AM Aug 21, 2019Observed: 10.07 ft at 11:15AM Aug 21, 2019Observed: 10.07 ft at 11:30AM Aug 21, 2019Observed: 10.01 ft at 11:45AM Aug 21, 2019Observed: 10.08 ft at 12:00PM Aug 21, 2019Observed: 10.06 ft at 12:15PM Aug 21, 2019Observed: 10.07 ft at 12:30PM Aug 21, 2019Observed: 10.04 ft at 12:45PM Aug 21, 2019Observed: 10.06 ft at 1:00PM Aug 21, 2019Observed: 10 ft at 1:15PM Aug 21, 2019Observed: 10.05 ft at 1:30PM Aug 21, 2019Observed: 10.02 ft at 1:45PM Aug 21, 2019Observed: 9.97 ft at 2:00PM Aug 21, 2019Observed: 10.02 ft at 2:15PM Aug 21, 2019Observed: 10 ft at 2:30PM Aug 21, 2019Observed: 10.01 ft at 2:45PM Aug 21, 2019Observed: 10.01 ft at 3:00PM Aug 21, 2019Observed: 10.02 ft at 3:15PM Aug 21, 2019Observed: 10 ft at 3:30PM Aug 21, 2019Observed: 10.01 ft at 3:45PM Aug 21, 2019Observed: 9.97 ft at 4:00PM Aug 21, 2019Observed: 9.98 ft at 4:15PM Aug 21, 2019Observed: 10 ft at 4:30PM Aug 21, 2019Observed: 10.01 ft at 4:45PM Aug 21, 2019Observed: 9.99 ft at 5:00PM Aug 21, 2019Observed: 9.98 ft at 5:15PM Aug 21, 2019Observed: 9.96 ft at 5:30PM Aug 21, 2019Observed: 9.95 ft at 5:45PM Aug 21, 2019Observed: 9.95 ft at 5:46PM Aug 21, 2019Observed: 9.97 ft at 6:00PM Aug 21, 2019Observed: 9.97 ft at 6:01PM Aug 21, 2019Observed: 9.98 ft at 6:15PM Aug 21, 2019Observed: 9.98 ft at 6:16PM Aug 21, 2019Observed: 9.97 ft at 6:30PM Aug 21, 2019Observed: 9.95 ft at 6:45PM Aug 21, 2019Observed: 9.95 ft at 7:00PM Aug 21, 2019Observed: 9.96 ft at 7:15PM Aug 21, 2019Observed: 9.93 ft at 7:30PM Aug 21, 2019Observed: 9.95 ft at 7:45PM Aug 21, 2019Observed: 9.92 ft at 8:00PM Aug 21, 2019Observed: 9.89 ft at 8:15PM Aug 21, 2019Observed: 9.91 ft at 8:30PM Aug 21, 2019Observed: 9.9 ft at 8:45PM Aug 21, 2019Observed: 9.85 ft at 9:00PM Aug 21, 2019Observed: 9.89 ft at 9:15PM Aug 21, 2019Observed: 9.86 ft at 9:30PM Aug 21, 2019Observed: 9.91 ft at 9:45PM Aug 21, 2019Observed: 9.86 ft at 10:00PM Aug 21, 2019Observed: 9.88 ft at 10:15PM Aug 21, 2019Observed: 9.85 ft at 10:30PM Aug 21, 2019Observed: 9.84 ft at 10:45PM Aug 21, 2019Observed: 9.89 ft at 11:00PM Aug 21, 2019Observed: 9.86 ft at 11:15PM Aug 21, 2019Observed: 9.84 ft at 11:30PM Aug 21, 2019Observed: 9.84 ft at 11:45PM Aug 21, 2019Observed: 9.81 ft at 12:00AM Aug 22, 2019Observed: 9.85 ft at 12:15AM Aug 22, 2019Observed: 9.84 ft at 12:30AM Aug 22, 2019Observed: 9.81 ft at 12:45AM Aug 22, 2019Observed: 9.84 ft at 1:00AM Aug 22, 2019Observed: 9.8 ft at 1:15AM Aug 22, 2019Observed: 9.8 ft at 1:30AM Aug 22, 2019Observed: 9.83 ft at 1:45AM Aug 22, 2019Observed: 9.8 ft at 2:00AM Aug 22, 2019Observed: 9.78 ft at 2:15AM Aug 22, 2019Observed: 9.78 ft at 2:30AM Aug 22, 2019Observed: 9.77 ft at 2:45AM Aug 22, 2019Observed: 9.78 ft at 3:00AM Aug 22, 2019Observed: 9.77 ft at 3:15AM Aug 22, 2019Observed: 9.74 ft at 3:30AM Aug 22, 2019Observed: 9.77 ft at 3:45AM Aug 22, 2019Highest Forecast: 9.6 ft 7:00AM Aug 22, 2019Forecast: 9.4 ft 1:00PM Aug 22, 2019Forecast: 9.2 ft 7:00PM Aug 22, 2019Forecast: 9 ft 1:00AM Aug 23, 2019Forecast: 8.8 ft 7:00AM Aug 23, 2019Forecast: 8.6 ft 1:00PM Aug 23, 2019Forecast: 8.5 ft 7:00PM Aug 23, 2019Forecast: 8.4 ft 1:00AM Aug 24, 2019Forecast: 8.2 ft 7:00AM Aug 24, 2019Forecast: 8.1 ft 1:00PM Aug 24, 2019Forecast: 8 ft 7:00PM Aug 24, 2019Forecast: 7.8 ft 1:00AM Aug 25, 2019Forecast: 7.7 ft 7:00AM Aug 25, 2019Forecast: 7.6 ft 1:00PM Aug 25, 2019Forecast: 7.6 ft 7:00PM Aug 25, 2019Forecast: 7.5 ft 1:00AM Aug 26, 2019Forecast: 7.4 ft 7:00AM Aug 26, 2019Forecast: 7.4 ft 1:00PM Aug 26, 2019Forecast: 7.4 ft 7:00PM Aug 26, 2019USGS--Water Resources of the United StatesBRKS2(plotting HGIRG) Graph Created (4:48AM Aug 22, 2019)ObservedForecast (issued 7:55PM Aug 21)Latest observed value: 9.77 ft at 3:45 AM CDT 22-Aug-2019. Flood Stage is 9 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Flow values shown may be different than other data sources. All observations are preliminary data.

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Big Sioux River near Brookings are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Medary Upstream Gauge Downstream Gauge Downstream Gauge - above Flandreau
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 10.5
Flood Stage: 9
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 14.77 ft on 04/09/1969
(2) 13.70 ft on 06/22/1984
(3) 13.66 ft on 09/25/2010
(4) 13.50 ft on 07/04/1993
(5) 13.33 ft on 03/24/2011
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.11 ft on 03/22/2019 (P)
(2) 12.30 ft on 04/24/2018
(3) 7.40 ft on 05/25/2017
(4) 5.53 ft on 06/19/2016
(5) 6.54 ft on 08/22/2015
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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 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
16 The bridges on 473rd Avenue and 475th Avenue are overtopped.
14 The water reaches the bottom of the bridges on 473rd Avenue and 475th Avenue.
13 The bridge 1 mile south of Medary on 471st Avenue is overtopped.
12 475th Avenue and 222nd Street being to flood.
11.7 473rd Avenue at 221st Street begins to flood.
11 Some farm outbuildings begin to flood.
10.3 473rd Avenue north of the gauge begins to flood.
10 Flooding begins to affect agricultural lands along the right bank of the river.
9 Significant amounts of pasture and farm lands begin flooding on the left bank of the river. The road south of the Brookings water treatment plant is flooded, as is 217th Street between 468th and 469th Avenues.
8 There is some minor overflow of the lowest banks along this stretch of the river.
Photos
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 44.180278° N, Longitude: 96.749167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 9 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 1551.91 ft 1560.91 ft  

Current/Historical Observations:
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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