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Hydrograph River at a Glance Download Inundation
Mapping
Blanchard River at Ottawa Stage (ft)Flow (kcfs)Observed: 18.21 ft at 8:00PM Jul 17, 2021Observed: 18.3 ft at 8:30PM Jul 17, 2021Observed: 18.37 ft at 9:00PM Jul 17, 2021Observed: 18.44 ft at 9:30PM Jul 17, 2021Observed: 18.51 ft at 10:00PM Jul 17, 2021Observed: 18.58 ft at 10:30PM Jul 17, 2021Observed: 18.65 ft at 11:00PM Jul 17, 2021Observed: 18.7 ft at 11:30PM Jul 17, 2021Observed: 18.76 ft at 12:00AM Jul 18, 2021Observed: 18.83 ft at 12:30AM Jul 18, 2021Observed: 18.88 ft at 1:00AM Jul 18, 2021Observed: 18.94 ft at 1:30AM Jul 18, 2021Observed: 18.99 ft at 2:00AM Jul 18, 2021Observed: 19.05 ft at 2:30AM Jul 18, 2021Observed: 19.1 ft at 3:00AM Jul 18, 2021Observed: 19.16 ft at 3:30AM Jul 18, 2021Observed: 19.21 ft at 4:00AM Jul 18, 2021Observed: 19.26 ft at 4:30AM Jul 18, 2021Observed: 19.32 ft at 5:00AM Jul 18, 2021Observed: 19.37 ft at 5:30AM Jul 18, 2021Observed: 19.42 ft at 6:00AM Jul 18, 2021Observed: 19.47 ft at 6:30AM Jul 18, 2021Observed: 19.52 ft at 7:00AM Jul 18, 2021Observed: 19.55 ft at 7:30AM Jul 18, 2021Observed: 19.61 ft at 8:00AM Jul 18, 2021Observed: 19.66 ft at 8:30AM Jul 18, 2021Observed: 19.7 ft at 9:00AM Jul 18, 2021Observed: 19.74 ft at 9:30AM Jul 18, 2021Observed: 19.77 ft at 10:00AM Jul 18, 2021Observed: 19.81 ft at 10:30AM Jul 18, 2021Observed: 19.84 ft at 11:00AM Jul 18, 2021Observed: 19.85 ft at 11:30AM Jul 18, 2021Observed: 19.87 ft at 12:00PM Jul 18, 2021Observed: 19.9 ft at 12:30PM Jul 18, 2021Observed: 19.9 ft at 1:00PM Jul 18, 2021Observed: 19.92 ft at 1:30PM Jul 18, 2021Observed: 19.92 ft at 2:00PM Jul 18, 2021Observed: 19.92 ft at 2:30PM Jul 18, 2021Observed: 19.92 ft at 3:00PM Jul 18, 2021Observed: 19.93 ft at 3:30PM Jul 18, 2021Highest Observation: 19.94 ft at 4:00PM Jul 18, 2021Observed: 19.93 ft at 4:30PM Jul 18, 2021Observed: 19.93 ft at 5:00PM Jul 18, 2021Observed: 19.93 ft at 5:30PM Jul 18, 2021Observed: 19.92 ft at 6:00PM Jul 18, 2021Observed: 19.9 ft at 6:30PM Jul 18, 2021Observed: 19.89 ft at 7:00PM Jul 18, 2021Observed: 19.89 ft at 7:30PM Jul 18, 2021Observed: 19.87 ft at 8:00PM Jul 18, 2021Observed: 19.86 ft at 8:30PM Jul 18, 2021Observed: 19.85 ft at 9:00PM Jul 18, 2021Observed: 19.83 ft at 9:30PM Jul 18, 2021Observed: 19.82 ft at 10:00PM Jul 18, 2021Observed: 19.79 ft at 10:30PM Jul 18, 2021Observed: 19.79 ft at 11:00PM Jul 18, 2021Observed: 19.75 ft at 11:30PM Jul 18, 2021Observed: 19.74 ft at 12:00AM Jul 19, 2021Observed: 19.71 ft at 12:30AM Jul 19, 2021Observed: 19.7 ft at 1:00AM Jul 19, 2021Observed: 19.66 ft at 1:30AM Jul 19, 2021Observed: 19.64 ft at 2:00AM Jul 19, 2021Observed: 19.6 ft at 2:30AM Jul 19, 2021Observed: 19.57 ft at 3:00AM Jul 19, 2021Observed: 19.53 ft at 3:30AM Jul 19, 2021Observed: 19.49 ft at 4:00AM Jul 19, 2021Observed: 19.46 ft at 4:30AM Jul 19, 2021Observed: 19.41 ft at 5:00AM Jul 19, 2021Observed: 19.38 ft at 5:30AM Jul 19, 2021Observed: 19.32 ft at 6:00AM Jul 19, 2021Observed: 19.28 ft at 6:30AM Jul 19, 2021Observed: 19.22 ft at 7:00AM Jul 19, 2021Observed: 19.17 ft at 7:30AM Jul 19, 2021Observed: 19.12 ft at 8:00AM Jul 19, 2021Observed: 19.05 ft at 8:30AM Jul 19, 2021Observed: 18.98 ft at 9:00AM Jul 19, 2021Observed: 18.92 ft at 9:30AM Jul 19, 2021Observed: 18.84 ft at 10:00AM Jul 19, 2021Observed: 18.77 ft at 10:30AM Jul 19, 2021Observed: 18.7 ft at 11:00AM Jul 19, 2021Observed: 18.62 ft at 11:30AM Jul 19, 2021Observed: 18.18 ft at 2:00PM Jul 19, 2021Observed: 18.08 ft at 2:30PM Jul 19, 2021Observed: 17.98 ft at 3:00PM Jul 19, 2021Observed: 17.88 ft at 3:30PM Jul 19, 2021Observed: 17.76 ft at 4:00PM Jul 19, 2021Observed: 17.65 ft at 4:30PM Jul 19, 2021Observed: 17.54 ft at 5:00PM Jul 19, 2021Observed: 17.42 ft at 5:30PM Jul 19, 2021Observed: 17.3 ft at 6:00PM Jul 19, 2021Observed: 17.17 ft at 6:30PM Jul 19, 2021Observed: 17.05 ft at 7:00PM Jul 19, 2021Observed: 16.92 ft at 7:30PM Jul 19, 2021Observed: 16.79 ft at 8:00PM Jul 19, 2021Observed: 16.66 ft at 8:30PM Jul 19, 2021Observed: 16.52 ft at 9:00PM Jul 19, 2021Observed: 16.39 ft at 9:30PM Jul 19, 2021Observed: 16.25 ft at 10:00PM Jul 19, 2021Observed: 16.12 ft at 10:30PM Jul 19, 2021Observed: 15.98 ft at 11:00PM Jul 19, 2021Observed: 15.83 ft at 11:30PM Jul 19, 2021Observed: 15.7 ft at 12:00AM Jul 20, 2021Observed: 15.56 ft at 12:30AM Jul 20, 2021Observed: 15.42 ft at 1:00AM Jul 20, 2021Observed: 15.28 ft at 1:30AM Jul 20, 2021Observed: 15.14 ft at 2:00AM Jul 20, 2021Observed: 14.99 ft at 2:30AM Jul 20, 2021Observed: 14.85 ft at 3:00AM Jul 20, 2021Observed: 14.71 ft at 3:30AM Jul 20, 2021Observed: 14.57 ft at 4:00AM Jul 20, 2021Observed: 14.42 ft at 4:30AM Jul 20, 2021Observed: 14.28 ft at 5:00AM Jul 20, 2021Observed: 14.14 ft at 5:30AM Jul 20, 2021Observed: 13.99 ft at 6:00AM Jul 20, 2021Observed: 13.85 ft at 6:30AM Jul 20, 2021Observed: 13.71 ft at 7:00AM Jul 20, 2021Observed: 13.57 ft at 7:30AM Jul 20, 2021Observed: 13.43 ft at 8:00AM Jul 20, 2021Observed: 13.29 ft at 8:30AM Jul 20, 2021Observed: 13.15 ft at 9:00AM Jul 20, 2021Observed: 13.01 ft at 9:30AM Jul 20, 2021Observed: 12.87 ft at 10:00AM Jul 20, 2021Observed: 12.74 ft at 10:30AM Jul 20, 2021Observed: 12.6 ft at 11:00AM Jul 20, 2021Observed: 12.46 ft at 11:30AM Jul 20, 2021Observed: 12.32 ft at 12:00PM Jul 20, 2021Observed: 12.17 ft at 12:30PM Jul 20, 2021Observed: 12.03 ft at 1:00PM Jul 20, 2021Observed: 11.89 ft at 1:30PM Jul 20, 2021Observed: 11.75 ft at 2:00PM Jul 20, 2021Observed: 11.61 ft at 2:30PM Jul 20, 2021Observed: 11.47 ft at 3:00PM Jul 20, 2021Observed: 11.34 ft at 3:30PM Jul 20, 2021Observed: 11.2 ft at 4:00PM Jul 20, 2021Observed: 11.07 ft at 4:30PM Jul 20, 2021Observed: 10.95 ft at 5:00PM Jul 20, 2021Observed: 10.82 ft at 5:30PM Jul 20, 2021Observed: 10.7 ft at 6:00PM Jul 20, 2021Observed: 10.59 ft at 6:30PM Jul 20, 2021Observed: 10.48 ft at 7:00PM Jul 20, 2021Observed: 10.37 ft at 7:30PM Jul 20, 2021Observed: 10.26 ft at 8:00PM Jul 20, 2021Observed: 10.16 ft at 8:30PM Jul 20, 2021Observed: 10.06 ft at 9:00PM Jul 20, 2021Observed: 9.97 ft at 9:30PM Jul 20, 2021Observed: 9.87 ft at 10:00PM Jul 20, 2021Observed: 9.78 ft at 10:30PM Jul 20, 2021Observed: 9.69 ft at 11:00PM Jul 20, 2021Observed: 9.61 ft at 11:30PM Jul 20, 2021Observed: 9.53 ft at 12:00AM Jul 21, 2021Observed: 9.44 ft at 12:30AM Jul 21, 2021Observed: 9.37 ft at 1:00AM Jul 21, 2021Observed: 9.29 ft at 1:30AM Jul 21, 2021Observed: 9.22 ft at 2:00AM Jul 21, 2021Observed: 9.15 ft at 2:30AM Jul 21, 2021Observed: 9.08 ft at 3:00AM Jul 21, 2021Observed: 9.02 ft at 3:30AM Jul 21, 2021Observed: 8.95 ft at 4:00AM Jul 21, 2021Observed: 8.89 ft at 4:30AM Jul 21, 2021Observed: 8.83 ft at 5:00AM Jul 21, 2021Observed: 8.78 ft at 5:30AM Jul 21, 2021Observed: 8.72 ft at 6:00AM Jul 21, 2021Observed: 8.67 ft at 6:30AM Jul 21, 2021Observed: 8.62 ft at 7:00AM Jul 21, 2021Observed: 8.57 ft at 7:30AM Jul 21, 2021Observed: 8.53 ft at 8:00AM Jul 21, 2021Observed: 8.48 ft at 8:30AM Jul 21, 2021Observed: 8.43 ft at 9:00AM Jul 21, 2021Observed: 8.39 ft at 9:30AM Jul 21, 2021Observed: 8.35 ft at 10:00AM Jul 21, 2021Observed: 8.31 ft at 10:30AM Jul 21, 2021Observed: 8.27 ft at 11:00AM Jul 21, 2021Observed: 8.23 ft at 11:30AM Jul 21, 2021Observed: 8.19 ft at 12:00PM Jul 21, 2021Observed: 8.16 ft at 12:30PM Jul 21, 2021Observed: 8.12 ft at 1:00PM Jul 21, 2021Observed: 8.08 ft at 1:30PM Jul 21, 2021Observed: 8.05 ft at 2:00PM Jul 21, 2021Observed: 8.02 ft at 2:30PM Jul 21, 2021Observed: 7.99 ft at 3:00PM Jul 21, 2021Observed: 7.95 ft at 3:30PM Jul 21, 2021Observed: 7.93 ft at 4:00PM Jul 21, 2021Observed: 7.89 ft at 4:30PM Jul 21, 2021Observed: 7.87 ft at 5:00PM Jul 21, 2021Observed: 7.83 ft at 5:30PM Jul 21, 2021Observed: 7.81 ft at 6:00PM Jul 21, 2021Observed: 7.79 ft at 6:30PM Jul 21, 2021Observed: 7.75 ft at 7:00PM Jul 21, 2021Observed: 7.73 ft at 7:30PM Jul 21, 2021Observed: 7.71 ft at 8:00PM Jul 21, 2021Observed: 7.68 ft at 8:30PM Jul 21, 2021Observed: 7.66 ft at 9:00PM Jul 21, 2021Observed: 7.63 ft at 9:30PM Jul 21, 2021Observed: 7.61 ft at 10:00PM Jul 21, 2021Observed: 7.59 ft at 10:30PM Jul 21, 2021Observed: 7.57 ft at 11:00PM Jul 21, 2021Observed: 7.54 ft at 11:30PM Jul 21, 2021Observed: 7.52 ft at 12:00AM Jul 22, 2021Observed: 7.5 ft at 12:30AM Jul 22, 2021Observed: 7.48 ft at 1:00AM Jul 22, 2021Observed: 7.46 ft at 1:30AM Jul 22, 2021Observed: 7.43 ft at 2:00AM Jul 22, 2021Observed: 7.41 ft at 2:30AM Jul 22, 2021Observed: 7.39 ft at 3:00AM Jul 22, 2021Observed: 7.37 ft at 3:30AM Jul 22, 2021Observed: 7.35 ft at 4:00AM Jul 22, 2021Observed: 7.33 ft at 4:30AM Jul 22, 2021Observed: 7.31 ft at 5:00AM Jul 22, 2021Observed: 7.29 ft at 5:30AM Jul 22, 2021Observed: 7.27 ft at 6:00AM Jul 22, 2021Observed: 7.25 ft at 6:30AM Jul 22, 2021Observed: 7.23 ft at 7:00AM Jul 22, 2021Observed: 7.21 ft at 7:30AM Jul 22, 2021Observed: 7.2 ft at 8:00AM Jul 22, 2021Observed: 7.18 ft at 8:30AM Jul 22, 2021Observed: 7.16 ft at 9:00AM Jul 22, 2021Observed: 7.14 ft at 9:30AM Jul 22, 2021Observed: 7.12 ft at 10:00AM Jul 22, 2021Observed: 7.1 ft at 10:30AM Jul 22, 2021Observed: 7.08 ft at 11:00AM Jul 22, 2021Observed: 7.06 ft at 11:30AM Jul 22, 2021Observed: 7.04 ft at 12:00PM Jul 22, 2021Observed: 7.02 ft at 12:30PM Jul 22, 2021Observed: 7 ft at 1:00PM Jul 22, 2021Observed: 6.98 ft at 1:30PM Jul 22, 2021Observed: 6.96 ft at 2:00PM Jul 22, 2021Observed: 6.95 ft at 2:30PM Jul 22, 2021Observed: 6.93 ft at 3:00PM Jul 22, 2021Observed: 6.92 ft at 3:30PM Jul 22, 2021Observed: 6.9 ft at 4:00PM Jul 22, 2021Observed: 6.89 ft at 4:30PM Jul 22, 2021Observed: 6.88 ft at 5:00PM Jul 22, 2021Observed: 6.86 ft at 5:30PM Jul 22, 2021Observed: 6.85 ft at 6:00PM Jul 22, 2021Observed: 6.85 ft at 6:30PM Jul 22, 2021Observed: 6.83 ft at 7:00PM Jul 22, 2021Observed: 6.83 ft at 7:30PM Jul 22, 2021Observed: 6.81 ft at 8:00PM Jul 22, 2021Observed: 6.8 ft at 8:30PM Jul 22, 2021Observed: 6.79 ft at 9:00PM Jul 22, 2021Observed: 6.79 ft at 9:30PM Jul 22, 2021Observed: 6.77 ft at 10:00PM Jul 22, 2021Observed: 6.76 ft at 10:30PM Jul 22, 2021Observed: 6.75 ft at 11:00PM Jul 22, 2021Observed: 6.75 ft at 11:30PM Jul 22, 2021Observed: 6.73 ft at 12:00AM Jul 23, 2021Observed: 6.72 ft at 12:30AM Jul 23, 2021Observed: 6.71 ft at 1:00AM Jul 23, 2021Observed: 6.7 ft at 1:30AM Jul 23, 2021Observed: 6.69 ft at 2:00AM Jul 23, 2021Observed: 6.67 ft at 2:30AM Jul 23, 2021Observed: 6.66 ft at 3:00AM Jul 23, 2021Observed: 6.65 ft at 3:30AM Jul 23, 2021Observed: 6.64 ft at 4:00AM Jul 23, 2021Observed: 6.62 ft at 4:30AM Jul 23, 2021Observed: 6.62 ft at 5:00AM Jul 23, 2021Observed: 6.6 ft at 5:30AM Jul 23, 2021Observed: 6.59 ft at 6:00AM Jul 23, 2021Observed: 6.58 ft at 6:30AM Jul 23, 2021Observed: 6.57 ft at 7:00AM Jul 23, 2021Observed: 6.56 ft at 7:30AM Jul 23, 2021Observed: 6.55 ft at 8:00AM Jul 23, 2021Observed: 6.54 ft at 8:30AM Jul 23, 2021Observed: 6.53 ft at 9:00AM Jul 23, 2021Observed: 6.52 ft at 9:30AM Jul 23, 2021Observed: 6.5 ft at 10:00AM Jul 23, 2021Observed: 6.49 ft at 10:30AM Jul 23, 2021Observed: 6.49 ft at 11:00AM Jul 23, 2021Observed: 6.48 ft at 11:30AM Jul 23, 2021Observed: 6.5 ft at 12:00PM Jul 23, 2021Observed: 6.55 ft at 12:30PM Jul 23, 2021Observed: 6.58 ft at 1:00PM Jul 23, 2021Observed: 6.58 ft at 1:30PM Jul 23, 2021Observed: 6.58 ft at 2:00PM Jul 23, 2021Observed: 6.57 ft at 2:30PM Jul 23, 2021Observed: 6.56 ft at 3:00PM Jul 23, 2021Observed: 6.55 ft at 3:30PM Jul 23, 2021Observed: 6.54 ft at 4:00PM Jul 23, 2021Observed: 6.54 ft at 4:30PM Jul 23, 2021Observed: 6.53 ft at 5:00PM Jul 23, 2021Observed: 6.53 ft at 5:30PM Jul 23, 2021Observed: 6.53 ft at 6:00PM Jul 23, 2021Observed: 6.52 ft at 6:30PM Jul 23, 2021Observed: 6.52 ft at 7:00PM Jul 23, 2021Observed: 6.51 ft at 7:30PM Jul 23, 2021Observed: 6.5 ft at 8:00PM Jul 23, 2021Observed: 6.5 ft at 8:30PM Jul 23, 2021Observed: 6.49 ft at 9:00PM Jul 23, 2021Observed: 6.48 ft at 9:30PM Jul 23, 2021Observed: 6.48 ft at 10:00PM Jul 23, 2021Observed: 6.47 ft at 10:30PM Jul 23, 2021Observed: 6.46 ft at 11:00PM Jul 23, 2021Observed: 6.45 ft at 11:30PM Jul 23, 2021Observed: 6.45 ft at 12:00AM Jul 24, 2021Observed: 6.44 ft at 12:30AM Jul 24, 2021Observed: 6.43 ft at 1:00AM Jul 24, 2021Observed: 6.43 ft at 1:30AM Jul 24, 2021Observed: 6.42 ft at 2:00AM Jul 24, 2021Observed: 6.41 ft at 2:30AM Jul 24, 2021Observed: 6.41 ft at 3:00AM Jul 24, 2021Observed: 6.4 ft at 3:30AM Jul 24, 2021Observed: 6.39 ft at 4:00AM Jul 24, 2021Observed: 6.38 ft at 4:30AM Jul 24, 2021Observed: 6.38 ft at 5:00AM Jul 24, 2021Observed: 6.37 ft at 5:30AM Jul 24, 2021Observed: 6.36 ft at 6:00AM Jul 24, 2021Observed: 6.35 ft at 6:30AM Jul 24, 2021Observed: 6.34 ft at 7:00AM Jul 24, 2021Observed: 6.34 ft at 7:30AM Jul 24, 2021Observed: 6.33 ft at 8:00AM Jul 24, 2021Observed: 6.33 ft at 8:30AM Jul 24, 2021Observed: 6.32 ft at 9:00AM Jul 24, 2021Observed: 6.31 ft at 9:30AM Jul 24, 2021Observed: 6.3 ft at 10:00AM Jul 24, 2021Observed: 6.29 ft at 10:30AM Jul 24, 2021Observed: 6.28 ft at 11:00AM Jul 24, 2021Observed: 6.28 ft at 11:30AM Jul 24, 2021Observed: 6.28 ft at 12:00PM Jul 24, 2021Observed: 6.28 ft at 12:30PM Jul 24, 2021Observed: 6.27 ft at 1:00PM Jul 24, 2021Observed: 6.28 ft at 1:30PM Jul 24, 2021Observed: 6.27 ft at 2:00PM Jul 24, 2021Observed: 6.27 ft at 2:30PM Jul 24, 2021Observed: 6.28 ft at 3:00PM Jul 24, 2021Observed: 6.28 ft at 3:30PM Jul 24, 2021Observed: 6.28 ft at 4:00PM Jul 24, 2021Observed: 6.27 ft at 4:30PM Jul 24, 2021Observed: 6.29 ft at 5:00PM Jul 24, 2021Observed: 6.29 ft at 5:30PM Jul 24, 2021Observed: 6.29 ft at 6:00PM Jul 24, 2021Observed: 6.29 ft at 6:30PM Jul 24, 2021Observed: 6.29 ft at 7:00PM Jul 24, 2021Observed: 6.29 ft at 7:30PM Jul 24, 2021Observed: 6.3 ft at 8:00PM Jul 24, 2021Observed: 6.29 ft at 8:30PM Jul 24, 2021Observed: 6.28 ft at 9:00PM Jul 24, 2021Observed: 6.28 ft at 9:30PM Jul 24, 2021Observed: 6.27 ft at 10:00PM Jul 24, 2021Observed: 6.28 ft at 10:30PM Jul 24, 2021Observed: 6.27 ft at 11:00PM Jul 24, 2021Observed: 6.26 ft at 11:30PM Jul 24, 2021Observed: 6.26 ft at 12:00AM Jul 25, 2021Observed: 6.25 ft at 12:30AM Jul 25, 2021Observed: 6.24 ft at 1:00AM Jul 25, 2021Observed: 6.24 ft at 1:30AM Jul 25, 2021Observed: 6.23 ft at 2:00AM Jul 25, 2021Observed: 6.23 ft at 2:30AM Jul 25, 2021Observed: 6.21 ft at 3:00AM Jul 25, 2021Observed: 6.21 ft at 3:30AM Jul 25, 2021Observed: 6.19 ft at 4:00AM Jul 25, 2021Observed: 6.18 ft at 4:30AM Jul 25, 2021Observed: 6.18 ft at 5:00AM Jul 25, 2021Observed: 6.16 ft at 5:30AM Jul 25, 2021Observed: 6.17 ft at 6:00AM Jul 25, 2021Observed: 6.16 ft at 6:30AM Jul 25, 2021Observed: 6.15 ft at 7:00AM Jul 25, 2021Observed: 6.14 ft at 7:30AM Jul 25, 2021Observed: 6.13 ft at 8:00AM Jul 25, 2021Observed: 6.13 ft at 8:30AM Jul 25, 2021Observed: 6.12 ft at 9:00AM Jul 25, 2021Observed: 6.12 ft at 9:30AM Jul 25, 2021Observed: 6.1 ft at 10:00AM Jul 25, 2021Observed: 6.09 ft at 10:30AM Jul 25, 2021Observed: 6.09 ft at 11:00AM Jul 25, 2021Observed: 6.08 ft at 11:30AM Jul 25, 2021Observed: 6.07 ft at 12:00PM Jul 25, 2021Observed: 6.07 ft at 12:30PM Jul 25, 2021Observed: 6.06 ft at 1:00PM Jul 25, 2021Observed: 6.05 ft at 1:30PM Jul 25, 2021Observed: 6.04 ft at 2:00PM Jul 25, 2021Observed: 6.04 ft at 2:30PM Jul 25, 2021Observed: 6.04 ft at 3:00PM Jul 25, 2021Observed: 6.03 ft at 3:30PM Jul 25, 2021Observed: 6.03 ft at 4:00PM Jul 25, 2021Observed: 6.02 ft at 4:30PM Jul 25, 2021Observed: 6.02 ft at 5:00PM Jul 25, 2021Observed: 6.01 ft at 5:30PM Jul 25, 2021Observed: 6 ft at 6:00PM Jul 25, 2021Observed: 6 ft at 6:30PM Jul 25, 2021Observed: 6 ft at 7:00PM Jul 25, 2021Observed: 5.99 ft at 7:30PM Jul 25, 2021Observed: 6 ft at 8:00PM Jul 25, 2021Observed: 5.99 ft at 8:30PM Jul 25, 2021Observed: 5.99 ft at 9:00PM Jul 25, 2021Observed: 5.99 ft at 9:30PM Jul 25, 2021Observed: 5.99 ft at 10:00PM Jul 25, 2021Observed: 6 ft at 10:30PM Jul 25, 2021Observed: 5.98 ft at 11:00PM Jul 25, 2021Observed: 5.99 ft at 11:30PM Jul 25, 2021Observed: 5.99 ft at 12:00AM Jul 26, 2021Observed: 5.98 ft at 12:30AM Jul 26, 2021Observed: 5.99 ft at 1:00AM Jul 26, 2021Observed: 5.99 ft at 1:30AM Jul 26, 2021Observed: 5.99 ft at 2:00AM Jul 26, 2021Observed: 5.97 ft at 2:30AM Jul 26, 2021Observed: 5.97 ft at 3:00AM Jul 26, 2021Observed: 5.97 ft at 3:30AM Jul 26, 2021Observed: 5.97 ft at 4:00AM Jul 26, 2021Observed: 5.96 ft at 4:30AM Jul 26, 2021Observed: 5.96 ft at 5:00AM Jul 26, 2021Observed: 5.95 ft at 5:30AM Jul 26, 2021Observed: 5.95 ft at 6:00AM Jul 26, 2021Observed: 5.95 ft at 6:30AM Jul 26, 2021Observed: 5.95 ft at 7:00AM Jul 26, 2021Observed: 5.95 ft at 7:30AM Jul 26, 2021Observed: 5.95 ft at 8:00AM Jul 26, 2021Observed: 5.95 ft at 8:30AM Jul 26, 2021Observed: 5.94 ft at 9:00AM Jul 26, 2021Observed: 5.94 ft at 9:30AM Jul 26, 2021Observed: 5.93 ft at 10:00AM Jul 26, 2021Observed: 5.92 ft at 10:30AM Jul 26, 2021Observed: 5.92 ft at 11:00AM Jul 26, 2021Observed: 5.91 ft at 11:30AM Jul 26, 2021Observed: 5.91 ft at 12:00PM Jul 26, 2021Observed: 5.91 ft at 12:30PM Jul 26, 2021Observed: 5.91 ft at 1:00PM Jul 26, 2021Observed: 5.9 ft at 1:30PM Jul 26, 2021Observed: 5.9 ft at 2:00PM Jul 26, 2021Observed: 5.89 ft at 2:30PM Jul 26, 2021Observed: 5.89 ft at 3:00PM Jul 26, 2021Observed: 5.89 ft at 3:30PM Jul 26, 2021Observed: 5.88 ft at 4:00PM Jul 26, 2021Observed: 5.88 ft at 4:30PM Jul 26, 2021Observed: 5.86 ft at 5:00PM Jul 26, 2021Observed: 5.86 ft at 5:30PM Jul 26, 2021Observed: 5.85 ft at 6:00PM Jul 26, 2021Observed: 5.85 ft at 6:30PM Jul 26, 2021Observed: 5.85 ft at 7:00PM Jul 26, 2021Observed: 5.84 ft at 7:30PM Jul 26, 2021Observed: 5.84 ft at 8:00PM Jul 26, 2021Observed: 5.84 ft at 8:30PM Jul 26, 2021Observed: 5.83 ft at 9:00PM Jul 26, 2021Observed: 5.83 ft at 9:30PM Jul 26, 2021Observed: 5.82 ft at 10:00PM Jul 26, 2021Observed: 5.82 ft at 10:30PM Jul 26, 2021Observed: 5.82 ft at 11:00PM Jul 26, 2021Observed: 5.82 ft at 11:30PM Jul 26, 2021Observed: 5.82 ft at 12:00AM Jul 27, 2021Observed: 5.8 ft at 12:30AM Jul 27, 2021Observed: 5.8 ft at 1:00AM Jul 27, 2021Observed: 5.8 ft at 1:30AM Jul 27, 2021Observed: 5.79 ft at 2:00AM Jul 27, 2021Observed: 5.79 ft at 2:30AM Jul 27, 2021Observed: 5.78 ft at 3:00AM Jul 27, 2021Observed: 5.78 ft at 3:30AM Jul 27, 2021Observed: 5.77 ft at 4:00AM Jul 27, 2021Observed: 5.76 ft at 4:30AM Jul 27, 2021Observed: 5.75 ft at 5:00AM Jul 27, 2021Observed: 5.75 ft at 5:30AM Jul 27, 2021Observed: 5.75 ft at 6:00AM Jul 27, 2021Observed: 5.74 ft at 6:30AM Jul 27, 2021Observed: 5.73 ft at 7:00AM Jul 27, 2021Observed: 5.73 ft at 7:30AM Jul 27, 2021Highest Forecast: 5.6 ft 2:00PM Jul 27, 2021Forecast: 5.5 ft 8:00PM Jul 27, 2021Forecast: 5.5 ft 2:00AM Jul 28, 2021Forecast: 5.4 ft 8:00AM Jul 28, 2021Forecast: 5.4 ft 2:00PM Jul 28, 2021Forecast: 5.3 ft 8:00PM Jul 28, 2021Forecast: 5.3 ft 2:00AM Jul 29, 2021Forecast: 5.2 ft 8:00AM Jul 29, 2021Forecast: 5.2 ft 2:00PM Jul 29, 2021Forecast: 5.2 ft 8:00PM Jul 29, 2021Forecast: 5.2 ft 2:00AM Jul 30, 2021Forecast: 5.2 ft 8:00AM Jul 30, 2021Forecast: 5.1 ft 2:00PM Jul 30, 2021Forecast: 5.1 ft 8:00PM Jul 30, 2021Forecast: 5.1 ft 2:00AM Jul 31, 2021Forecast: 5.1 ft 8:00AM Jul 31, 2021Jump to USGS siteOTTO1(plotting HGIRG) Graph Created (8:38AM Jul 27, 2021)ObservedForecast (issued 9:55AM Jul 26)Latest observed value: 5.73 ft at 7:30 AM EDT 27-Jul-2021. Flood Stage is 23 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
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 Blanchard River at Ottawa are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Defiance Power Dam
Flood Categories (in feet)
Major Flood Stage: 30
Moderate Flood Stage: 27
Flood Stage: 23
Action Stage: 20
Low Stage (in feet): -9999

Historic Crests
(1) 33.30 ft on 03/25/1913
(2) 31.40 ft on 08/23/2007
(3) 29.75 ft on 06/15/1981
(4) 29.72 ft on 02/11/1959
(5) 29.29 ft on 02/07/2008
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 23.80 ft on 05/11/2021 (P)
(2) 27.55 ft on 07/15/2017
(3) 23.27 ft on 12/30/2015
(4) 25.82 ft on 06/29/2015
(5) 25.88 ft on 06/17/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -2.37 ft on 01/15/1979
(2) -1.50 ft on 02/19/1980
(3) 4.39 ft on 08/28/2020
Show More Low Water Records

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
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29 Widespread major flooding occurs throughout downtown Ottawa.
27 Flooding worsens on the south side of Ottawa, with water on several roads. Flooding also begins in other areas of Ottawa.
26.6 Flood water begins to hit the bottom of the bridge at the gage site.
25 Flooding begins along south Walnut and west Second Streets on the south side of Ottawa.
23 Lowland flooding occurs mainly in south Ottawa. Flood water also gets into low farmlands.
Photos
(1) Upstream view from gauge site
(2) Downstream view from gauge site
About This Location Collapse

Latitude: 41.016944° N, Longitude: 84.046944° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 23 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 698.43 ft 721.43 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  

Current/Historical Observations:

Additional Information Collapse
Per USGS record: All periods of record that are estimated are rated poor. All other periods are rated as follows: For the period Oct. 1, 2014 to Feb. 10, 2016, records good. Feb. 11, 2016 to Dec. 22, 2016 discharge records are good. Dec. 23, 2016 to Feb. 14, 2017 discharge records are fair. Feb. 15, 2017 to May 29, 2017 discharge records are good. May 30, 2017 to Nov. 14, 2017 discharge records are fair. Nov. 15, 2017 to Oct. 30, 2018 discharge records are fair, except for discharges between 700 cfs. and 5900 cfs. which are poor. Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) River Forecast VS. River Potential
HEFS Ensemble NAEFS Ensemble Outlook vs. Forecast

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Northern Indiana Weather Forecast Office
7506 E 850 N
Syracuse, IN 46567
(574) 834-1104
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Page last modified: 2-Nov-2020 7:30 PM
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