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Hydrograph River at a Glance Download
Floyd River at Alton Stage (ft)Flow (cfs)Observed: 17.14 ft at 11:15PM Mar 13, 2019Observed: 17.38 ft at 11:30PM Mar 13, 2019Observed: 17.17 ft at 11:45PM Mar 13, 2019Observed: 17.31 ft at 12:00AM Mar 14, 2019Observed: 17.43 ft at 12:15AM Mar 14, 2019Observed: 17.63 ft at 12:30AM Mar 14, 2019Observed: 17.66 ft at 12:45AM Mar 14, 2019Observed: 17.68 ft at 1:00AM Mar 14, 2019Observed: 17.58 ft at 1:15AM Mar 14, 2019Observed: 17.67 ft at 1:30AM Mar 14, 2019Observed: 17.69 ft at 1:45AM Mar 14, 2019Observed: 17.72 ft at 2:00AM Mar 14, 2019Observed: 17.79 ft at 2:15AM Mar 14, 2019Observed: 17.75 ft at 2:30AM Mar 14, 2019Observed: 17.71 ft at 2:45AM Mar 14, 2019Observed: 17.72 ft at 3:00AM Mar 14, 2019Observed: 17.73 ft at 3:15AM Mar 14, 2019Observed: 17.68 ft at 3:30AM Mar 14, 2019Observed: 17.68 ft at 3:45AM Mar 14, 2019Observed: 17.63 ft at 4:00AM Mar 14, 2019Observed: 17.72 ft at 4:15AM Mar 14, 2019Observed: 17.81 ft at 4:30AM Mar 14, 2019Observed: 17.77 ft at 4:45AM Mar 14, 2019Observed: 17.86 ft at 5:00AM Mar 14, 2019Observed: 17.92 ft at 5:15AM Mar 14, 2019Observed: 18 ft at 5:30AM Mar 14, 2019Observed: 18.12 ft at 5:45AM Mar 14, 2019Observed: 18.29 ft at 6:00AM Mar 14, 2019Observed: 18.36 ft at 6:15AM Mar 14, 2019Observed: 18.48 ft at 6:30AM Mar 14, 2019Observed: 18.53 ft at 6:45AM Mar 14, 2019Observed: 18.75 ft at 7:00AM Mar 14, 2019Observed: 18.79 ft at 7:15AM Mar 14, 2019Observed: 18.92 ft at 7:30AM Mar 14, 2019Observed: 19.02 ft at 7:45AM Mar 14, 2019Observed: 19.03 ft at 8:00AM Mar 14, 2019Observed: 19.18 ft at 8:15AM Mar 14, 2019Observed: 19.28 ft at 8:30AM Mar 14, 2019Observed: 19.37 ft at 8:45AM Mar 14, 2019Observed: 19.56 ft at 9:00AM Mar 14, 2019Observed: 19.85 ft at 9:15AM Mar 14, 2019Observed: 19.94 ft at 9:30AM Mar 14, 2019Observed: 20.11 ft at 9:45AM Mar 14, 2019Observed: 20.18 ft at 10:00AM Mar 14, 2019Observed: 20.3 ft at 10:15AM Mar 14, 2019Observed: 20.42 ft at 10:30AM Mar 14, 2019Observed: 20.46 ft at 10:45AM Mar 14, 2019Observed: 20.38 ft at 11:00AM Mar 14, 2019Observed: 20.48 ft at 11:15AM Mar 14, 2019Observed: 20.45 ft at 11:30AM Mar 14, 2019Observed: 20.5 ft at 11:45AM Mar 14, 2019Observed: 20.51 ft at 12:00PM Mar 14, 2019Observed: 20.51 ft at 12:15PM Mar 14, 2019Observed: 20.49 ft at 12:30PM Mar 14, 2019Observed: 20.49 ft at 12:45PM Mar 14, 2019Observed: 20.46 ft at 1:00PM Mar 14, 2019Observed: 20.53 ft at 1:15PM Mar 14, 2019Highest Observation: 20.64 ft at 1:30PM Mar 14, 2019Observed: 20.62 ft at 1:45PM Mar 14, 2019Observed: 20.54 ft at 2:00PM Mar 14, 2019Observed: 20.56 ft at 2:15PM Mar 14, 2019Observed: 20.55 ft at 2:30PM Mar 14, 2019Observed: 20.55 ft at 2:45PM Mar 14, 2019Observed: 20.47 ft at 3:00PM Mar 14, 2019Observed: 20.46 ft at 3:15PM Mar 14, 2019Observed: 20.46 ft at 3:30PM Mar 14, 2019Observed: 20.51 ft at 3:45PM Mar 14, 2019Observed: 20.42 ft at 4:00PM Mar 14, 2019Observed: 20.48 ft at 4:15PM Mar 14, 2019Observed: 20.51 ft at 4:30PM Mar 14, 2019Observed: 20.52 ft at 4:45PM Mar 14, 2019Observed: 20.37 ft at 5:00PM Mar 14, 2019Observed: 20.4 ft at 5:15PM Mar 14, 2019Observed: 20.42 ft at 5:30PM Mar 14, 2019Observed: 20.39 ft at 5:45PM Mar 14, 2019Observed: 20.34 ft at 6:00PM Mar 14, 2019Observed: 20.35 ft at 6:15PM Mar 14, 2019Observed: 20.32 ft at 6:30PM Mar 14, 2019Observed: 20.24 ft at 6:45PM Mar 14, 2019Observed: 20.23 ft at 7:00PM Mar 14, 2019Observed: 20.17 ft at 7:15PM Mar 14, 2019Observed: 20.14 ft at 7:30PM Mar 14, 2019Observed: 20.11 ft at 7:45PM Mar 14, 2019Observed: 20 ft at 8:00PM Mar 14, 2019Observed: 19.99 ft at 8:15PM Mar 14, 2019Observed: 20.01 ft at 8:30PM Mar 14, 2019Observed: 19.94 ft at 8:45PM Mar 14, 2019Observed: 19.88 ft at 9:00PM Mar 14, 2019Observed: 19.82 ft at 9:15PM Mar 14, 2019Observed: 19.75 ft at 9:30PM Mar 14, 2019Observed: 19.66 ft at 9:45PM Mar 14, 2019Observed: 19.65 ft at 10:00PM Mar 14, 2019Observed: 19.6 ft at 10:15PM Mar 14, 2019Observed: 19.48 ft at 10:30PM Mar 14, 2019Observed: 19.46 ft at 10:45PM Mar 14, 2019Observed: 19.45 ft at 11:00PM Mar 14, 2019Observed: 19.31 ft at 11:15PM Mar 14, 2019Observed: 19.23 ft at 11:30PM Mar 14, 2019Observed: 19.14 ft at 11:45PM Mar 14, 2019Observed: 19.1 ft at 12:00AM Mar 15, 2019Observed: 19.08 ft at 12:15AM Mar 15, 2019Observed: 18.95 ft at 12:30AM Mar 15, 2019Observed: 18.87 ft at 12:45AM Mar 15, 2019Observed: 18.81 ft at 1:00AM Mar 15, 2019Observed: 18.75 ft at 1:15AM Mar 15, 2019Observed: 18.68 ft at 1:30AM Mar 15, 2019Observed: 18.6 ft at 1:45AM Mar 15, 2019Observed: 18.54 ft at 2:00AM Mar 15, 2019Observed: 18.44 ft at 2:15AM Mar 15, 2019Observed: 18.37 ft at 2:30AM Mar 15, 2019Observed: 18.31 ft at 2:45AM Mar 15, 2019Observed: 18.25 ft at 3:00AM Mar 15, 2019Observed: 18.19 ft at 3:15AM Mar 15, 2019Observed: 18.1 ft at 3:30AM Mar 15, 2019Observed: 17.98 ft at 3:45AM Mar 15, 2019Observed: 17.96 ft at 4:00AM Mar 15, 2019Observed: 17.89 ft at 4:15AM Mar 15, 2019Observed: 17.91 ft at 4:30AM Mar 15, 2019Observed: 17.73 ft at 4:45AM Mar 15, 2019Observed: 17.73 ft at 5:00AM Mar 15, 2019Observed: 17.71 ft at 5:15AM Mar 15, 2019Observed: 17.61 ft at 5:30AM Mar 15, 2019Observed: 17.59 ft at 5:45AM Mar 15, 2019Observed: 17.45 ft at 6:00AM Mar 15, 2019Observed: 17.49 ft at 6:15AM Mar 15, 2019Observed: 17.41 ft at 6:30AM Mar 15, 2019Observed: 17.36 ft at 6:45AM Mar 15, 2019Observed: 17.33 ft at 7:00AM Mar 15, 2019Observed: 17.28 ft at 7:15AM Mar 15, 2019Observed: 17.23 ft at 7:30AM Mar 15, 2019Observed: 17.16 ft at 7:45AM Mar 15, 2019Observed: 17.12 ft at 8:00AM Mar 15, 2019Observed: 17.05 ft at 8:15AM Mar 15, 2019Observed: 17.04 ft at 8:30AM Mar 15, 2019Observed: 16.97 ft at 8:45AM Mar 15, 2019Observed: 16.91 ft at 9:00AM Mar 15, 2019Observed: 16.89 ft at 9:15AM Mar 15, 2019Observed: 16.82 ft at 9:30AM Mar 15, 2019Observed: 16.81 ft at 9:45AM Mar 15, 2019Observed: 16.73 ft at 10:00AM Mar 15, 2019Observed: 16.7 ft at 10:15AM Mar 15, 2019Observed: 16.66 ft at 10:30AM Mar 15, 2019Observed: 16.63 ft at 10:45AM Mar 15, 2019Observed: 16.59 ft at 11:00AM Mar 15, 2019Observed: 16.57 ft at 11:15AM Mar 15, 2019Observed: 16.54 ft at 11:30AM Mar 15, 2019Observed: 16.5 ft at 11:45AM Mar 15, 2019Observed: 16.51 ft at 12:00PM Mar 15, 2019Observed: 16.49 ft at 12:15PM Mar 15, 2019Observed: 16.49 ft at 12:30PM Mar 15, 2019Observed: 16.49 ft at 12:45PM Mar 15, 2019Observed: 16.47 ft at 1:00PM Mar 15, 2019Observed: 16.48 ft at 1:15PM Mar 15, 2019Observed: 16.47 ft at 1:30PM Mar 15, 2019Observed: 16.49 ft at 1:45PM Mar 15, 2019Observed: 16.53 ft at 2:00PM Mar 15, 2019Observed: 16.47 ft at 2:15PM Mar 15, 2019Observed: 16.44 ft at 2:30PM Mar 15, 2019Observed: 16.43 ft at 2:45PM Mar 15, 2019Observed: 16.44 ft at 3:00PM Mar 15, 2019Observed: 16.43 ft at 3:15PM Mar 15, 2019Observed: 16.42 ft at 3:30PM Mar 15, 2019Observed: 16.46 ft at 3:45PM Mar 15, 2019Observed: 16.44 ft at 4:00PM Mar 15, 2019Observed: 16.48 ft at 4:15PM Mar 15, 2019Observed: 16.48 ft at 4:30PM Mar 15, 2019Observed: 16.45 ft at 4:45PM Mar 15, 2019Observed: 16.45 ft at 5:00PM Mar 15, 2019Observed: 16.49 ft at 5:15PM Mar 15, 2019Observed: 16.51 ft at 5:30PM Mar 15, 2019Observed: 16.54 ft at 5:45PM Mar 15, 2019Observed: 16.6 ft at 6:00PM Mar 15, 2019Observed: 16.59 ft at 6:15PM Mar 15, 2019Observed: 16.6 ft at 6:30PM Mar 15, 2019Observed: 16.62 ft at 6:45PM Mar 15, 2019Observed: 16.59 ft at 7:00PM Mar 15, 2019Observed: 16.57 ft at 7:15PM Mar 15, 2019Observed: 16.57 ft at 7:30PM Mar 15, 2019Observed: 16.55 ft at 7:45PM Mar 15, 2019Observed: 16.52 ft at 8:00PM Mar 15, 2019Observed: 16.52 ft at 8:15PM Mar 15, 2019Observed: 16.5 ft at 8:30PM Mar 15, 2019Observed: 16.48 ft at 8:45PM Mar 15, 2019Observed: 16.46 ft at 9:00PM Mar 15, 2019Observed: 16.47 ft at 9:15PM Mar 15, 2019Observed: 16.44 ft at 9:30PM Mar 15, 2019Observed: 16.38 ft at 9:45PM Mar 15, 2019Observed: 16.37 ft at 10:00PM Mar 15, 2019Observed: 16.35 ft at 10:15PM Mar 15, 2019Observed: 16.29 ft at 10:30PM Mar 15, 2019Observed: 16.23 ft at 10:45PM Mar 15, 2019Observed: 16.21 ft at 11:00PM Mar 15, 2019Observed: 16.19 ft at 11:15PM Mar 15, 2019Observed: 16.11 ft at 11:30PM Mar 15, 2019Observed: 16.13 ft at 11:45PM Mar 15, 2019Observed: 16.08 ft at 12:00AM Mar 16, 2019Observed: 16.02 ft at 12:15AM Mar 16, 2019Observed: 15.99 ft at 12:30AM Mar 16, 2019Observed: 15.94 ft at 12:45AM Mar 16, 2019Observed: 15.87 ft at 1:00AM Mar 16, 2019Observed: 15.86 ft at 1:15AM Mar 16, 2019Observed: 15.8 ft at 1:30AM Mar 16, 2019Observed: 15.79 ft at 1:45AM Mar 16, 2019Observed: 15.72 ft at 2:00AM Mar 16, 2019Observed: 15.72 ft at 2:15AM Mar 16, 2019Observed: 15.65 ft at 2:30AM Mar 16, 2019Observed: 15.6 ft at 2:45AM Mar 16, 2019Observed: 15.51 ft at 3:00AM Mar 16, 2019Observed: 15.51 ft at 3:15AM Mar 16, 2019Observed: 15.48 ft at 3:30AM Mar 16, 2019Observed: 15.42 ft at 3:45AM Mar 16, 2019Observed: 15.39 ft at 4:00AM Mar 16, 2019Observed: 15.39 ft at 4:15AM Mar 16, 2019Observed: 15.31 ft at 4:30AM Mar 16, 2019Observed: 15.31 ft at 4:45AM Mar 16, 2019Observed: 15.27 ft at 5:00AM Mar 16, 2019Observed: 15.23 ft at 5:15AM Mar 16, 2019Observed: 15.17 ft at 5:30AM Mar 16, 2019Observed: 15.17 ft at 5:45AM Mar 16, 2019Observed: 15.13 ft at 6:00AM Mar 16, 2019Observed: 15.09 ft at 6:15AM Mar 16, 2019Observed: 15.07 ft at 6:30AM Mar 16, 2019Observed: 15.01 ft at 6:45AM Mar 16, 2019Observed: 14.98 ft at 7:00AM Mar 16, 2019Observed: 14.96 ft at 7:15AM Mar 16, 2019Observed: 14.9 ft at 7:30AM Mar 16, 2019Observed: 14.87 ft at 7:45AM Mar 16, 2019Observed: 14.85 ft at 8:00AM Mar 16, 2019Observed: 14.78 ft at 8:15AM Mar 16, 2019Observed: 14.76 ft at 8:30AM Mar 16, 2019Observed: 14.77 ft at 8:45AM Mar 16, 2019Observed: 14.72 ft at 9:00AM Mar 16, 2019Observed: 14.69 ft at 9:15AM Mar 16, 2019Observed: 14.6 ft at 9:30AM Mar 16, 2019Observed: 14.62 ft at 9:45AM Mar 16, 2019Observed: 14.56 ft at 10:00AM Mar 16, 2019Observed: 14.57 ft at 10:15AM Mar 16, 2019Observed: 14.53 ft at 10:30AM Mar 16, 2019Observed: 14.49 ft at 10:45AM Mar 16, 2019Observed: 14.49 ft at 11:00AM Mar 16, 2019Observed: 14.47 ft at 11:15AM Mar 16, 2019Observed: 14.45 ft at 11:30AM Mar 16, 2019Observed: 14.41 ft at 11:45AM Mar 16, 2019Observed: 14.37 ft at 12:00PM Mar 16, 2019Observed: 14.38 ft at 12:15PM Mar 16, 2019Observed: 14.38 ft at 12:30PM Mar 16, 2019Observed: 14.38 ft at 12:45PM Mar 16, 2019Observed: 14.38 ft at 1:00PM Mar 16, 2019Observed: 14.37 ft at 1:15PM Mar 16, 2019Observed: 14.38 ft at 1:30PM Mar 16, 2019Observed: 14.37 ft at 1:45PM Mar 16, 2019Observed: 14.36 ft at 2:00PM Mar 16, 2019Observed: 14.38 ft at 2:15PM Mar 16, 2019Observed: 14.36 ft at 2:30PM Mar 16, 2019Observed: 14.35 ft at 2:45PM Mar 16, 2019Observed: 14.34 ft at 3:00PM Mar 16, 2019Observed: 14.34 ft at 3:15PM Mar 16, 2019Observed: 14.33 ft at 3:30PM Mar 16, 2019Observed: 14.36 ft at 3:45PM Mar 16, 2019Observed: 14.35 ft at 4:00PM Mar 16, 2019Observed: 14.35 ft at 4:15PM Mar 16, 2019Observed: 14.38 ft at 4:30PM Mar 16, 2019Observed: 14.38 ft at 4:45PM Mar 16, 2019Observed: 14.37 ft at 5:00PM Mar 16, 2019Observed: 14.43 ft at 5:15PM Mar 16, 2019Observed: 14.44 ft at 5:30PM Mar 16, 2019Observed: 14.47 ft at 5:45PM Mar 16, 2019Observed: 14.48 ft at 6:00PM Mar 16, 2019Observed: 14.53 ft at 6:15PM Mar 16, 2019Observed: 14.58 ft at 6:30PM Mar 16, 2019Observed: 14.64 ft at 6:45PM Mar 16, 2019Observed: 14.64 ft at 7:00PM Mar 16, 2019Observed: 14.68 ft at 7:15PM Mar 16, 2019Observed: 14.69 ft at 7:30PM Mar 16, 2019Observed: 14.73 ft at 7:45PM Mar 16, 2019Observed: 14.81 ft at 8:00PM Mar 16, 2019Observed: 14.81 ft at 8:15PM Mar 16, 2019Observed: 14.85 ft at 8:30PM Mar 16, 2019Observed: 14.9 ft at 8:45PM Mar 16, 2019Observed: 14.93 ft at 9:00PM Mar 16, 2019Observed: 14.92 ft at 9:15PM Mar 16, 2019Observed: 14.96 ft at 9:30PM Mar 16, 2019Observed: 14.97 ft at 9:45PM Mar 16, 2019Observed: 14.98 ft at 10:00PM Mar 16, 2019Observed: 14.94 ft at 10:15PM Mar 16, 2019Observed: 14.94 ft at 10:30PM Mar 16, 2019Observed: 14.93 ft at 10:45PM Mar 16, 2019Observed: 14.91 ft at 11:00PM Mar 16, 2019Observed: 14.87 ft at 11:15PM Mar 16, 2019Observed: 14.88 ft at 11:30PM Mar 16, 2019Observed: 14.85 ft at 11:45PM Mar 16, 2019Observed: 14.81 ft at 12:00AM Mar 17, 2019Observed: 14.77 ft at 12:15AM Mar 17, 2019Observed: 14.73 ft at 12:30AM Mar 17, 2019Observed: 14.69 ft at 12:45AM Mar 17, 2019Observed: 14.67 ft at 1:00AM Mar 17, 2019Observed: 14.62 ft at 1:15AM Mar 17, 2019Observed: 14.6 ft at 1:30AM Mar 17, 2019Observed: 14.56 ft at 1:45AM Mar 17, 2019Observed: 14.54 ft at 2:00AM Mar 17, 2019Observed: 14.52 ft at 2:15AM Mar 17, 2019Observed: 14.5 ft at 2:30AM Mar 17, 2019Observed: 14.46 ft at 2:45AM Mar 17, 2019Observed: 14.41 ft at 3:00AM Mar 17, 2019Observed: 14.37 ft at 3:15AM Mar 17, 2019Observed: 14.35 ft at 3:30AM Mar 17, 2019Observed: 14.32 ft at 3:45AM Mar 17, 2019Observed: 14.28 ft at 4:00AM Mar 17, 2019Observed: 14.24 ft at 4:15AM Mar 17, 2019Observed: 14.24 ft at 4:30AM Mar 17, 2019Observed: 14.22 ft at 4:45AM Mar 17, 2019Observed: 14.22 ft at 5:00AM Mar 17, 2019Observed: 14.18 ft at 5:15AM Mar 17, 2019Observed: 14.15 ft at 5:30AM Mar 17, 2019Observed: 14.12 ft at 5:45AM Mar 17, 2019Observed: 14.12 ft at 6:00AM Mar 17, 2019Observed: 14.11 ft at 6:15AM Mar 17, 2019Observed: 14.07 ft at 6:30AM Mar 17, 2019Observed: 14.07 ft at 6:45AM Mar 17, 2019Observed: 14.04 ft at 7:00AM Mar 17, 2019Observed: 14.01 ft at 7:15AM Mar 17, 2019Observed: 13.99 ft at 7:30AM Mar 17, 2019Observed: 13.96 ft at 7:45AM Mar 17, 2019Observed: 13.91 ft at 8:00AM Mar 17, 2019Observed: 13.9 ft at 8:15AM Mar 17, 2019Observed: 13.87 ft at 8:30AM Mar 17, 2019Observed: 13.85 ft at 8:45AM Mar 17, 2019Observed: 13.83 ft at 9:00AM Mar 17, 2019Observed: 13.82 ft at 9:15AM Mar 17, 2019Observed: 13.79 ft at 9:30AM Mar 17, 2019Observed: 13.76 ft at 9:45AM Mar 17, 2019Observed: 13.74 ft at 10:00AM Mar 17, 2019Observed: 13.73 ft at 10:15AM Mar 17, 2019Observed: 13.71 ft at 10:30AM Mar 17, 2019Observed: 13.7 ft at 10:45AM Mar 17, 2019Observed: 13.68 ft at 11:00AM Mar 17, 2019Observed: 13.67 ft at 11:15AM Mar 17, 2019Observed: 13.65 ft at 11:30AM Mar 17, 2019Observed: 13.62 ft at 11:45AM Mar 17, 2019Observed: 13.63 ft at 12:00PM Mar 17, 2019Observed: 13.63 ft at 12:15PM Mar 17, 2019Observed: 13.62 ft at 12:30PM Mar 17, 2019Observed: 13.59 ft at 12:45PM Mar 17, 2019Observed: 13.63 ft at 1:00PM Mar 17, 2019Observed: 13.59 ft at 1:15PM Mar 17, 2019Observed: 13.59 ft at 1:30PM Mar 17, 2019Observed: 13.59 ft at 1:45PM Mar 17, 2019Observed: 13.6 ft at 2:00PM Mar 17, 2019Observed: 13.58 ft at 2:15PM Mar 17, 2019Observed: 13.56 ft at 2:30PM Mar 17, 2019Observed: 13.58 ft at 2:45PM Mar 17, 2019Observed: 13.54 ft at 3:00PM Mar 17, 2019Observed: 13.5 ft at 3:15PM Mar 17, 2019Observed: 13.5 ft at 3:30PM Mar 17, 2019Observed: 13.51 ft at 3:45PM Mar 17, 2019Observed: 13.48 ft at 4:00PM Mar 17, 2019Observed: 13.48 ft at 4:15PM Mar 17, 2019Observed: 13.46 ft at 4:30PM Mar 17, 2019Observed: 13.44 ft at 4:45PM Mar 17, 2019Observed: 13.43 ft at 5:00PM Mar 17, 2019Observed: 13.45 ft at 5:15PM Mar 17, 2019Observed: 13.45 ft at 5:30PM Mar 17, 2019Observed: 13.41 ft at 5:45PM Mar 17, 2019Observed: 13.41 ft at 6:00PM Mar 17, 2019Observed: 13.42 ft at 6:15PM Mar 17, 2019Observed: 13.42 ft at 6:30PM Mar 17, 2019Observed: 13.4 ft at 6:45PM Mar 17, 2019Observed: 13.42 ft at 7:00PM Mar 17, 2019Observed: 13.41 ft at 7:15PM Mar 17, 2019Observed: 13.42 ft at 7:30PM Mar 17, 2019Observed: 13.4 ft at 7:45PM Mar 17, 2019Observed: 13.39 ft at 8:00PM Mar 17, 2019Observed: 13.41 ft at 8:15PM Mar 17, 2019Observed: 13.4 ft at 8:30PM Mar 17, 2019Observed: 13.37 ft at 8:45PM Mar 17, 2019Observed: 13.36 ft at 9:00PM Mar 17, 2019Observed: 13.37 ft at 9:15PM Mar 17, 2019Observed: 13.35 ft at 9:30PM Mar 17, 2019Observed: 13.34 ft at 9:45PM Mar 17, 2019Observed: 13.31 ft at 10:00PM Mar 17, 2019Observed: 13.33 ft at 10:15PM Mar 17, 2019Observed: 13.29 ft at 10:30PM Mar 17, 2019Observed: 13.28 ft at 10:45PM Mar 17, 2019Observed: 13.27 ft at 11:00PM Mar 17, 2019Observed: 13.24 ft at 11:15PM Mar 17, 2019Observed: 13.2 ft at 11:30PM Mar 17, 2019Observed: 13.14 ft at 11:45PM Mar 17, 2019Observed: 13.13 ft at 12:00AM Mar 18, 2019Observed: 13.1 ft at 12:15AM Mar 18, 2019Observed: 13.07 ft at 12:30AM Mar 18, 2019Observed: 13.04 ft at 12:45AM Mar 18, 2019Observed: 13.03 ft at 1:00AM Mar 18, 2019Observed: 12.99 ft at 1:15AM Mar 18, 2019Observed: 12.94 ft at 1:30AM Mar 18, 2019Observed: 12.91 ft at 1:45AM Mar 18, 2019Observed: 12.88 ft at 2:00AM Mar 18, 2019Observed: 12.86 ft at 2:15AM Mar 18, 2019Observed: 12.82 ft at 2:30AM Mar 18, 2019Observed: 12.79 ft at 2:45AM Mar 18, 2019Observed: 12.77 ft at 3:00AM Mar 18, 2019Observed: 12.74 ft at 3:15AM Mar 18, 2019Observed: 12.73 ft at 3:30AM Mar 18, 2019Observed: 12.7 ft at 3:45AM Mar 18, 2019Observed: 12.65 ft at 4:00AM Mar 18, 2019Observed: 12.62 ft at 4:15AM Mar 18, 2019Observed: 12.61 ft at 4:30AM Mar 18, 2019Observed: 12.58 ft at 4:45AM Mar 18, 2019Observed: 12.55 ft at 5:00AM Mar 18, 2019Observed: 12.53 ft at 5:15AM Mar 18, 2019Observed: 12.5 ft at 5:30AM Mar 18, 2019Observed: 12.47 ft at 5:45AM Mar 18, 2019Observed: 12.46 ft at 6:00AM Mar 18, 2019Observed: 12.44 ft at 6:15AM Mar 18, 2019Observed: 12.42 ft at 6:30AM Mar 18, 2019Observed: 12.4 ft at 6:45AM Mar 18, 2019Observed: 12.34 ft at 7:00AM Mar 18, 2019Observed: 12.33 ft at 7:15AM Mar 18, 2019Observed: 12.31 ft at 7:30AM Mar 18, 2019Observed: 12.3 ft at 7:45AM Mar 18, 2019Observed: 12.29 ft at 8:00AM Mar 18, 2019Observed: 12.26 ft at 8:15AM Mar 18, 2019Observed: 12.21 ft at 8:30AM Mar 18, 2019Observed: 12.2 ft at 8:45AM Mar 18, 2019Observed: 12.16 ft at 9:00AM Mar 18, 2019Observed: 12.16 ft at 9:15AM Mar 18, 2019Observed: 12.11 ft at 9:30AM Mar 18, 2019Observed: 12.09 ft at 9:45AM Mar 18, 2019Observed: 12.07 ft at 10:00AM Mar 18, 2019Observed: 12.04 ft at 10:15AM Mar 18, 2019Observed: 12 ft at 10:30AM Mar 18, 2019Observed: 11.99 ft at 10:45AM Mar 18, 2019Observed: 11.98 ft at 11:00AM Mar 18, 2019Observed: 11.92 ft at 11:15AM Mar 18, 2019Observed: 11.9 ft at 11:30AM Mar 18, 2019Observed: 11.86 ft at 11:45AM Mar 18, 2019Observed: 11.83 ft at 12:00PM Mar 18, 2019Observed: 11.82 ft at 12:15PM Mar 18, 2019Observed: 11.76 ft at 12:30PM Mar 18, 2019Observed: 11.74 ft at 12:45PM Mar 18, 2019Observed: 11.71 ft at 1:00PM Mar 18, 2019Observed: 11.69 ft at 1:15PM Mar 18, 2019Observed: 11.67 ft at 1:30PM Mar 18, 2019Observed: 11.65 ft at 1:45PM Mar 18, 2019Observed: 11.63 ft at 2:00PM Mar 18, 2019Observed: 11.6 ft at 2:15PM Mar 18, 2019Observed: 11.57 ft at 2:30PM Mar 18, 2019Observed: 11.58 ft at 2:45PM Mar 18, 2019Observed: 11.51 ft at 3:00PM Mar 18, 2019Observed: 11.51 ft at 3:15PM Mar 18, 2019Observed: 11.48 ft at 3:30PM Mar 18, 2019Observed: 11.49 ft at 3:45PM Mar 18, 2019Observed: 11.45 ft at 4:00PM Mar 18, 2019Observed: 11.43 ft at 4:15PM Mar 18, 2019Observed: 11.43 ft at 4:30PM Mar 18, 2019Observed: 11.42 ft at 4:45PM Mar 18, 2019Observed: 11.41 ft at 5:00PM Mar 18, 2019Observed: 11.43 ft at 5:15PM Mar 18, 2019Observed: 11.4 ft at 5:30PM Mar 18, 2019Observed: 11.43 ft at 5:45PM Mar 18, 2019Observed: 11.39 ft at 6:00PM Mar 18, 2019Observed: 11.4 ft at 6:15PM Mar 18, 2019Observed: 11.43 ft at 6:30PM Mar 18, 2019Observed: 11.39 ft at 6:45PM Mar 18, 2019Observed: 11.4 ft at 7:00PM Mar 18, 2019Observed: 11.41 ft at 7:15PM Mar 18, 2019Observed: 11.4 ft at 7:30PM Mar 18, 2019Observed: 11.41 ft at 7:45PM Mar 18, 2019Observed: 11.39 ft at 8:00PM Mar 18, 2019Observed: 11.4 ft at 8:15PM Mar 18, 2019Observed: 11.41 ft at 8:30PM Mar 18, 2019Observed: 11.39 ft at 8:45PM Mar 18, 2019Observed: 11.39 ft at 9:00PM Mar 18, 2019Observed: 11.36 ft at 9:15PM Mar 18, 2019Observed: 11.36 ft at 9:30PM Mar 18, 2019Observed: 11.36 ft at 9:45PM Mar 18, 2019Observed: 11.33 ft at 10:00PM Mar 18, 2019Observed: 11.33 ft at 10:15PM Mar 18, 2019Observed: 11.3 ft at 10:30PM Mar 18, 2019Highest Forecast: 11.1 ft 1:00AM Mar 19, 2019Forecast: 10.5 ft 7:00AM Mar 19, 2019Forecast: 9.8 ft 1:00PM Mar 19, 2019Forecast: 9.8 ft 7:00PM Mar 19, 2019Forecast: 10.6 ft 1:00AM Mar 20, 2019Forecast: 10.6 ft 7:00AM Mar 20, 2019Forecast: 10.2 ft 1:00PM Mar 20, 2019Forecast: 10.3 ft 7:00PM Mar 20, 2019Forecast: 10.9 ft 1:00AM Mar 21, 2019Forecast: 11 ft 7:00AM Mar 21, 2019Forecast: 10.7 ft 1:00PM Mar 21, 2019Forecast: 10.6 ft 7:00PM Mar 21, 2019Forecast: 10.8 ft 1:00AM Mar 22, 2019Forecast: 10.6 ft 7:00AM Mar 22, 2019Forecast: 10.1 ft 1:00PM Mar 22, 2019Forecast: 9.6 ft 7:00PM Mar 22, 2019Forecast: 9.2 ft 1:00AM Mar 23, 2019Forecast: 9.1 ft 7:00AM Mar 23, 2019Forecast: 9 ft 1:00PM Mar 23, 2019Forecast: 8.8 ft 7:00PM Mar 23, 2019USGS--Water Resources of the United StatesALTI4(plotting HGIRG) Graph Created (11:05PM Mar 18, 2019)ObservedForecast (issued 9:07PM Mar 18)Latest observed value: 11.3 ft at 10:30 PM CDT 18-Mar-2019. Flood Stage is 12 ft
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NOTE: Gauge reading may be affected by ice.

NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Floyd River at Alton are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Sheldon Upstream Gauge Downstream Gauge Downstream Gauge - near Struble
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 21.96 ft on 09/20/2018
(2) 20.50 ft on 06/21/2018
(3) 19.19 ft on 05/27/2013
(4) 18.54 ft on 06/20/1983
(5) 18.40 ft on 03/23/1979
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.96 ft on 09/20/2018
(2) 20.50 ft on 06/21/2018
(3) 0.00 ft on 02/13/2017
(4) 11.07 ft on 09/18/2016
(5) 6.24 ft on 05/17/2015
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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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
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19.2 Both lanes of State Highway 60 around 480th Street begin to be inundated by flood water.
18 The entire flood plain is under water and the river is about 1/2 mile wide. The flooding still primarily only affects agricultural land and county roads.
16 Significant amounts of crop and pasture land are flooded.
15 410th Street and Larch Avenue is inundated. Also 440th Street and Kingbird Avenue is flooded, and the water reaches the bottom of the bridge at CR L14 and 440th Street.
12 Flooding begins to affect the lower lying agricultural lands along the river.
Photos
(1) Upstream View
(2) Downstream View
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Latitude: 42.981944° N, Longitude: 96.000833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 1269.55 ft 1281.55 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

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