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Hydrograph River at a Glance Download Inundation
Mapping
Blanchard River at Ottawa Stage (ft)Observed: 7.72 ft at 8:00PM May 12, 2022Observed: 7.71 ft at 8:30PM May 12, 2022Observed: 7.7 ft at 9:00PM May 12, 2022Observed: 7.69 ft at 9:30PM May 12, 2022Observed: 7.67 ft at 10:00PM May 12, 2022Observed: 7.66 ft at 10:30PM May 12, 2022Observed: 7.65 ft at 11:00PM May 12, 2022Observed: 7.64 ft at 11:30PM May 12, 2022Observed: 7.63 ft at 12:00AM May 13, 2022Observed: 7.62 ft at 12:30AM May 13, 2022Observed: 7.62 ft at 1:00AM May 13, 2022Observed: 7.6 ft at 1:30AM May 13, 2022Observed: 7.6 ft at 2:00AM May 13, 2022Observed: 7.58 ft at 2:30AM May 13, 2022Observed: 7.57 ft at 3:00AM May 13, 2022Observed: 7.57 ft at 3:30AM May 13, 2022Observed: 7.56 ft at 4:00AM May 13, 2022Observed: 7.55 ft at 4:30AM May 13, 2022Observed: 7.55 ft at 5:00AM May 13, 2022Observed: 7.54 ft at 5:30AM May 13, 2022Observed: 7.54 ft at 6:00AM May 13, 2022Observed: 7.53 ft at 6:30AM May 13, 2022Observed: 7.53 ft at 7:00AM May 13, 2022Observed: 7.52 ft at 7:30AM May 13, 2022Observed: 7.52 ft at 8:00AM May 13, 2022Observed: 7.52 ft at 8:30AM May 13, 2022Observed: 7.51 ft at 9:00AM May 13, 2022Observed: 7.5 ft at 9:30AM May 13, 2022Observed: 7.5 ft at 10:00AM May 13, 2022Observed: 7.48 ft at 10:30AM May 13, 2022Observed: 7.47 ft at 11:00AM May 13, 2022Observed: 7.47 ft at 11:30AM May 13, 2022Observed: 7.45 ft at 12:00PM May 13, 2022Observed: 7.44 ft at 12:30PM May 13, 2022Observed: 7.42 ft at 1:00PM May 13, 2022Observed: 7.41 ft at 1:30PM May 13, 2022Observed: 7.39 ft at 2:00PM May 13, 2022Observed: 7.37 ft at 2:30PM May 13, 2022Observed: 7.36 ft at 3:00PM May 13, 2022Observed: 7.33 ft at 3:30PM May 13, 2022Observed: 7.31 ft at 4:00PM May 13, 2022Observed: 7.28 ft at 4:30PM May 13, 2022Observed: 7.26 ft at 5:00PM May 13, 2022Observed: 7.23 ft at 5:30PM May 13, 2022Observed: 7.2 ft at 6:00PM May 13, 2022Observed: 7.18 ft at 6:30PM May 13, 2022Observed: 7.16 ft at 7:00PM May 13, 2022Observed: 7.13 ft at 7:30PM May 13, 2022Observed: 7.11 ft at 8:00PM May 13, 2022Observed: 7.09 ft at 8:30PM May 13, 2022Observed: 7.07 ft at 9:00PM May 13, 2022Observed: 7.04 ft at 9:30PM May 13, 2022Observed: 7 ft at 10:00PM May 13, 2022Observed: 6.97 ft at 10:30PM May 13, 2022Observed: 6.95 ft at 11:00PM May 13, 2022Observed: 6.91 ft at 11:30PM May 13, 2022Observed: 6.89 ft at 12:00AM May 14, 2022Observed: 6.86 ft at 12:30AM May 14, 2022Observed: 6.84 ft at 1:00AM May 14, 2022Observed: 6.81 ft at 1:30AM May 14, 2022Observed: 6.8 ft at 2:00AM May 14, 2022Observed: 6.77 ft at 2:30AM May 14, 2022Observed: 6.75 ft at 3:00AM May 14, 2022Observed: 6.73 ft at 3:30AM May 14, 2022Observed: 6.72 ft at 4:00AM May 14, 2022Observed: 6.71 ft at 4:30AM May 14, 2022Observed: 6.69 ft at 5:00AM May 14, 2022Observed: 6.68 ft at 5:30AM May 14, 2022Observed: 6.68 ft at 6:00AM May 14, 2022Observed: 6.67 ft at 6:30AM May 14, 2022Observed: 6.65 ft at 7:00AM May 14, 2022Observed: 6.65 ft at 7:30AM May 14, 2022Observed: 6.64 ft at 8:00AM May 14, 2022Observed: 6.63 ft at 8:30AM May 14, 2022Observed: 6.62 ft at 9:00AM May 14, 2022Observed: 6.61 ft at 9:30AM May 14, 2022Observed: 6.6 ft at 10:00AM May 14, 2022Observed: 6.6 ft at 10:30AM May 14, 2022Observed: 6.59 ft at 11:00AM May 14, 2022Observed: 6.58 ft at 11:30AM May 14, 2022Observed: 6.58 ft at 12:00PM May 14, 2022Observed: 6.58 ft at 12:30PM May 14, 2022Observed: 6.57 ft at 1:00PM May 14, 2022Observed: 6.56 ft at 1:30PM May 14, 2022Observed: 6.56 ft at 2:00PM May 14, 2022Observed: 6.55 ft at 2:30PM May 14, 2022Observed: 6.54 ft at 3:00PM May 14, 2022Observed: 6.54 ft at 3:30PM May 14, 2022Observed: 6.52 ft at 4:00PM May 14, 2022Observed: 6.52 ft at 4:30PM May 14, 2022Observed: 6.5 ft at 5:00PM May 14, 2022Observed: 6.5 ft at 5:30PM May 14, 2022Observed: 6.49 ft at 6:00PM May 14, 2022Observed: 6.5 ft at 6:30PM May 14, 2022Observed: 6.55 ft at 7:00PM May 14, 2022Observed: 6.58 ft at 7:30PM May 14, 2022Observed: 6.59 ft at 8:00PM May 14, 2022Observed: 6.6 ft at 8:30PM May 14, 2022Observed: 6.62 ft at 9:00PM May 14, 2022Observed: 6.63 ft at 9:30PM May 14, 2022Observed: 6.73 ft at 10:00PM May 14, 2022Observed: 6.95 ft at 10:30PM May 14, 2022Observed: 7.35 ft at 11:00PM May 14, 2022Observed: 7.81 ft at 11:30PM May 14, 2022Observed: 8.31 ft at 12:00AM May 15, 2022Observed: 8.79 ft at 12:30AM May 15, 2022Observed: 9.15 ft at 1:00AM May 15, 2022Observed: 9.51 ft at 1:30AM May 15, 2022Observed: 9.81 ft at 2:00AM May 15, 2022Observed: 10.08 ft at 2:30AM May 15, 2022Observed: 10.29 ft at 3:00AM May 15, 2022Observed: 10.44 ft at 3:30AM May 15, 2022Observed: 10.58 ft at 4:00AM May 15, 2022Observed: 10.68 ft at 4:30AM May 15, 2022Observed: 10.74 ft at 5:00AM May 15, 2022Observed: 10.79 ft at 5:30AM May 15, 2022Observed: 10.81 ft at 6:00AM May 15, 2022Observed: 10.83 ft at 6:30AM May 15, 2022Observed: 10.84 ft at 7:00AM May 15, 2022Observed: 10.84 ft at 7:30AM May 15, 2022Observed: 10.84 ft at 8:00AM May 15, 2022Observed: 10.82 ft at 8:30AM May 15, 2022Observed: 10.8 ft at 9:00AM May 15, 2022Observed: 10.78 ft at 9:30AM May 15, 2022Observed: 10.75 ft at 10:00AM May 15, 2022Observed: 10.73 ft at 10:30AM May 15, 2022Observed: 10.7 ft at 11:00AM May 15, 2022Observed: 10.68 ft at 11:30AM May 15, 2022Observed: 10.66 ft at 12:00PM May 15, 2022Observed: 10.65 ft at 12:30PM May 15, 2022Observed: 10.63 ft at 1:00PM May 15, 2022Observed: 10.63 ft at 1:30PM May 15, 2022Observed: 10.62 ft at 2:00PM May 15, 2022Observed: 10.61 ft at 2:30PM May 15, 2022Observed: 10.61 ft at 3:00PM May 15, 2022Observed: 10.61 ft at 3:30PM May 15, 2022Observed: 10.59 ft at 4:00PM May 15, 2022Observed: 10.58 ft at 4:30PM May 15, 2022Observed: 10.57 ft at 5:00PM May 15, 2022Observed: 10.54 ft at 5:30PM May 15, 2022Observed: 10.52 ft at 6:00PM May 15, 2022Observed: 10.51 ft at 6:30PM May 15, 2022Observed: 10.5 ft at 7:00PM May 15, 2022Observed: 10.47 ft at 7:30PM May 15, 2022Observed: 10.46 ft at 8:00PM May 15, 2022Observed: 10.43 ft at 8:30PM May 15, 2022Observed: 10.41 ft at 9:00PM May 15, 2022Observed: 10.39 ft at 9:30PM May 15, 2022Observed: 10.35 ft at 10:00PM May 15, 2022Observed: 10.33 ft at 10:30PM May 15, 2022Observed: 10.3 ft at 11:00PM May 15, 2022Observed: 10.28 ft at 11:30PM May 15, 2022Observed: 10.25 ft at 12:00AM May 16, 2022Observed: 10.22 ft at 12:30AM May 16, 2022Observed: 10.2 ft at 1:00AM May 16, 2022Observed: 10.18 ft at 1:30AM May 16, 2022Observed: 10.16 ft at 2:00AM May 16, 2022Observed: 10.15 ft at 2:30AM May 16, 2022Observed: 10.13 ft at 3:00AM May 16, 2022Observed: 10.11 ft at 3:30AM May 16, 2022Observed: 10.1 ft at 4:00AM May 16, 2022Observed: 10.08 ft at 4:30AM May 16, 2022Observed: 10.07 ft at 5:00AM May 16, 2022Observed: 10.07 ft at 5:30AM May 16, 2022Observed: 10.08 ft at 6:00AM May 16, 2022Observed: 10.1 ft at 6:30AM May 16, 2022Observed: 10.15 ft at 7:00AM May 16, 2022Observed: 10.21 ft at 7:30AM May 16, 2022Observed: 10.29 ft at 8:00AM May 16, 2022Observed: 10.38 ft at 8:30AM May 16, 2022Observed: 10.49 ft at 9:00AM May 16, 2022Observed: 10.59 ft at 9:30AM May 16, 2022Observed: 10.68 ft at 10:00AM May 16, 2022Observed: 10.79 ft at 10:30AM May 16, 2022Observed: 10.87 ft at 11:00AM May 16, 2022Observed: 10.96 ft at 11:30AM May 16, 2022Observed: 11.03 ft at 12:00PM May 16, 2022Observed: 11.1 ft at 12:30PM May 16, 2022Observed: 11.15 ft at 1:00PM May 16, 2022Observed: 11.18 ft at 1:30PM May 16, 2022Observed: 11.23 ft at 2:00PM May 16, 2022Observed: 11.26 ft at 2:30PM May 16, 2022Observed: 11.31 ft at 3:00PM May 16, 2022Observed: 11.35 ft at 3:30PM May 16, 2022Observed: 11.38 ft at 4:00PM May 16, 2022Observed: 11.42 ft at 4:30PM May 16, 2022Observed: 11.46 ft at 5:00PM May 16, 2022Observed: 11.48 ft at 5:30PM May 16, 2022Observed: 11.51 ft at 6:00PM May 16, 2022Observed: 11.53 ft at 6:30PM May 16, 2022Observed: 11.55 ft at 7:00PM May 16, 2022Observed: 11.58 ft at 7:30PM May 16, 2022Observed: 11.6 ft at 8:00PM May 16, 2022Observed: 11.6 ft at 8:30PM May 16, 2022Observed: 11.62 ft at 9:00PM May 16, 2022Observed: 11.61 ft at 9:30PM May 16, 2022Observed: 11.6 ft at 10:00PM May 16, 2022Observed: 11.61 ft at 10:30PM May 16, 2022Observed: 11.59 ft at 11:00PM May 16, 2022Observed: 11.57 ft at 11:30PM May 16, 2022Observed: 11.55 ft at 12:00AM May 17, 2022Observed: 11.52 ft at 12:30AM May 17, 2022Observed: 11.5 ft at 1:00AM May 17, 2022Observed: 11.48 ft at 1:30AM May 17, 2022Observed: 11.45 ft at 2:00AM May 17, 2022Observed: 11.43 ft at 2:30AM May 17, 2022Observed: 11.4 ft at 3:00AM May 17, 2022Observed: 11.38 ft at 3:30AM May 17, 2022Observed: 11.34 ft at 4:00AM May 17, 2022Observed: 11.32 ft at 4:30AM May 17, 2022Observed: 11.28 ft at 5:00AM May 17, 2022Observed: 11.25 ft at 5:30AM May 17, 2022Observed: 11.23 ft at 6:00AM May 17, 2022Observed: 11.2 ft at 6:30AM May 17, 2022Observed: 11.16 ft at 7:00AM May 17, 2022Observed: 11.13 ft at 7:30AM May 17, 2022Observed: 11.09 ft at 8:00AM May 17, 2022Observed: 11.05 ft at 8:30AM May 17, 2022Observed: 11 ft at 9:00AM May 17, 2022Observed: 10.97 ft at 9:30AM May 17, 2022Observed: 10.93 ft at 10:00AM May 17, 2022Observed: 10.89 ft at 10:30AM May 17, 2022Observed: 10.83 ft at 11:00AM May 17, 2022Observed: 10.78 ft at 11:30AM May 17, 2022Observed: 10.74 ft at 12:00PM May 17, 2022Observed: 10.69 ft at 12:30PM May 17, 2022Observed: 10.63 ft at 1:00PM May 17, 2022Observed: 10.59 ft at 1:30PM May 17, 2022Observed: 10.54 ft at 2:00PM May 17, 2022Observed: 10.49 ft at 2:30PM May 17, 2022Observed: 10.42 ft at 3:00PM May 17, 2022Observed: 10.36 ft at 3:30PM May 17, 2022Observed: 10.32 ft at 4:00PM May 17, 2022Observed: 10.26 ft at 4:30PM May 17, 2022Observed: 10.21 ft at 5:00PM May 17, 2022Observed: 10.15 ft at 5:30PM May 17, 2022Observed: 10.1 ft at 6:00PM May 17, 2022Observed: 10.04 ft at 6:30PM May 17, 2022Observed: 9.99 ft at 7:00PM May 17, 2022Observed: 9.93 ft at 7:30PM May 17, 2022Observed: 9.88 ft at 8:00PM May 17, 2022Observed: 9.82 ft at 8:30PM May 17, 2022Observed: 9.77 ft at 9:00PM May 17, 2022Observed: 9.72 ft at 9:30PM May 17, 2022Observed: 9.67 ft at 10:00PM May 17, 2022Observed: 9.61 ft at 10:30PM May 17, 2022Observed: 9.55 ft at 11:00PM May 17, 2022Observed: 9.49 ft at 11:30PM May 17, 2022Observed: 9.44 ft at 12:00AM May 18, 2022Observed: 9.41 ft at 12:30AM May 18, 2022Observed: 9.36 ft at 1:00AM May 18, 2022Observed: 9.31 ft at 1:30AM May 18, 2022Observed: 9.26 ft at 2:00AM May 18, 2022Observed: 9.22 ft at 2:30AM May 18, 2022Observed: 9.17 ft at 3:00AM May 18, 2022Observed: 9.12 ft at 3:30AM May 18, 2022Observed: 9.08 ft at 4:00AM May 18, 2022Observed: 9.04 ft at 4:30AM May 18, 2022Observed: 8.99 ft at 5:00AM May 18, 2022Observed: 8.95 ft at 5:30AM May 18, 2022Observed: 8.89 ft at 6:00AM May 18, 2022Observed: 8.85 ft at 6:30AM May 18, 2022Observed: 8.81 ft at 7:00AM May 18, 2022Observed: 8.77 ft at 7:30AM May 18, 2022Observed: 8.73 ft at 8:00AM May 18, 2022Observed: 8.7 ft at 8:30AM May 18, 2022Observed: 8.66 ft at 9:00AM May 18, 2022Observed: 8.61 ft at 9:30AM May 18, 2022Observed: 8.57 ft at 10:00AM May 18, 2022Observed: 8.52 ft at 10:30AM May 18, 2022Observed: 8.48 ft at 11:00AM May 18, 2022Observed: 8.45 ft at 11:30AM May 18, 2022Observed: 8.41 ft at 12:00PM May 18, 2022Observed: 8.36 ft at 12:30PM May 18, 2022Observed: 8.32 ft at 1:00PM May 18, 2022Observed: 8.28 ft at 1:30PM May 18, 2022Observed: 8.24 ft at 2:00PM May 18, 2022Observed: 8.2 ft at 2:30PM May 18, 2022Observed: 8.16 ft at 3:00PM May 18, 2022Observed: 8.13 ft at 3:30PM May 18, 2022Observed: 8.08 ft at 4:00PM May 18, 2022Observed: 8.04 ft at 4:30PM May 18, 2022Observed: 8.02 ft at 5:00PM May 18, 2022Observed: 7.98 ft at 5:30PM May 18, 2022Observed: 7.95 ft at 6:00PM May 18, 2022Observed: 7.94 ft at 6:30PM May 18, 2022Observed: 7.92 ft at 7:00PM May 18, 2022Observed: 7.89 ft at 7:30PM May 18, 2022Observed: 7.87 ft at 8:00PM May 18, 2022Observed: 7.84 ft at 8:30PM May 18, 2022Observed: 7.82 ft at 9:00PM May 18, 2022Observed: 7.79 ft at 9:30PM May 18, 2022Observed: 7.77 ft at 10:00PM May 18, 2022Observed: 7.74 ft at 10:30PM May 18, 2022Observed: 7.72 ft at 11:00PM May 18, 2022Observed: 7.7 ft at 11:30PM May 18, 2022Observed: 7.68 ft at 12:00AM May 19, 2022Observed: 7.67 ft at 12:30AM May 19, 2022Observed: 7.64 ft at 1:00AM May 19, 2022Observed: 7.63 ft at 1:30AM May 19, 2022Observed: 7.61 ft at 2:00AM May 19, 2022Observed: 7.6 ft at 2:30AM May 19, 2022Observed: 7.59 ft at 3:00AM May 19, 2022Observed: 7.57 ft at 3:30AM May 19, 2022Observed: 7.56 ft at 4:00AM May 19, 2022Observed: 7.56 ft at 4:30AM May 19, 2022Observed: 7.55 ft at 5:00AM May 19, 2022Observed: 7.54 ft at 5:30AM May 19, 2022Observed: 7.53 ft at 6:00AM May 19, 2022Observed: 7.52 ft at 6:30AM May 19, 2022Observed: 7.52 ft at 7:00AM May 19, 2022Observed: 7.51 ft at 7:30AM May 19, 2022Observed: 7.5 ft at 8:00AM May 19, 2022Observed: 7.5 ft at 8:30AM May 19, 2022Observed: 7.49 ft at 9:00AM May 19, 2022Observed: 7.49 ft at 9:30AM May 19, 2022Observed: 7.49 ft at 10:00AM May 19, 2022Observed: 7.48 ft at 10:30AM May 19, 2022Observed: 7.48 ft at 11:00AM May 19, 2022Observed: 7.48 ft at 11:30AM May 19, 2022Observed: 7.49 ft at 12:00PM May 19, 2022Observed: 7.49 ft at 12:30PM May 19, 2022Observed: 7.49 ft at 1:00PM May 19, 2022Observed: 7.5 ft at 1:30PM May 19, 2022Observed: 7.5 ft at 2:00PM May 19, 2022Observed: 7.51 ft at 2:30PM May 19, 2022Observed: 7.52 ft at 3:00PM May 19, 2022Observed: 7.52 ft at 3:30PM May 19, 2022Observed: 7.54 ft at 4:00PM May 19, 2022Observed: 7.55 ft at 4:30PM May 19, 2022Observed: 7.56 ft at 5:00PM May 19, 2022Observed: 7.56 ft at 5:30PM May 19, 2022Observed: 7.57 ft at 6:00PM May 19, 2022Observed: 7.57 ft at 6:30PM May 19, 2022Observed: 7.58 ft at 7:00PM May 19, 2022Observed: 7.58 ft at 7:30PM May 19, 2022Observed: 7.59 ft at 8:00PM May 19, 2022Observed: 7.59 ft at 8:30PM May 19, 2022Observed: 7.59 ft at 9:00PM May 19, 2022Observed: 7.59 ft at 9:30PM May 19, 2022Observed: 7.59 ft at 10:00PM May 19, 2022Observed: 7.58 ft at 10:30PM May 19, 2022Observed: 7.58 ft at 11:00PM May 19, 2022Observed: 7.58 ft at 11:30PM May 19, 2022Observed: 7.57 ft at 12:00AM May 20, 2022Observed: 7.57 ft at 12:30AM May 20, 2022Observed: 7.56 ft at 1:00AM May 20, 2022Observed: 7.56 ft at 1:30AM May 20, 2022Observed: 7.55 ft at 2:00AM May 20, 2022Observed: 7.55 ft at 2:30AM May 20, 2022Observed: 7.54 ft at 3:00AM May 20, 2022Observed: 7.54 ft at 3:30AM May 20, 2022Observed: 7.53 ft at 4:00AM May 20, 2022Observed: 7.52 ft at 4:30AM May 20, 2022Observed: 7.52 ft at 5:00AM May 20, 2022Observed: 7.5 ft at 5:30AM May 20, 2022Observed: 7.5 ft at 6:00AM May 20, 2022Observed: 7.5 ft at 6:30AM May 20, 2022Observed: 7.49 ft at 7:00AM May 20, 2022Observed: 7.48 ft at 7:30AM May 20, 2022Observed: 7.48 ft at 8:00AM May 20, 2022Observed: 7.47 ft at 8:30AM May 20, 2022Observed: 7.46 ft at 9:00AM May 20, 2022Observed: 7.46 ft at 9:30AM May 20, 2022Observed: 7.45 ft at 10:00AM May 20, 2022Observed: 7.45 ft at 10:30AM May 20, 2022Observed: 7.45 ft at 11:00AM May 20, 2022Observed: 7.44 ft at 11:30AM May 20, 2022Observed: 7.43 ft at 12:00PM May 20, 2022Observed: 7.42 ft at 12:30PM May 20, 2022Observed: 7.42 ft at 1:00PM May 20, 2022Observed: 7.41 ft at 1:30PM May 20, 2022Observed: 7.4 ft at 2:00PM May 20, 2022Observed: 7.4 ft at 2:30PM May 20, 2022Observed: 7.39 ft at 3:00PM May 20, 2022Observed: 7.38 ft at 3:30PM May 20, 2022Observed: 7.38 ft at 4:00PM May 20, 2022Observed: 7.36 ft at 4:30PM May 20, 2022Observed: 7.35 ft at 5:00PM May 20, 2022Observed: 7.34 ft at 5:30PM May 20, 2022Observed: 7.34 ft at 6:00PM May 20, 2022Observed: 7.32 ft at 6:30PM May 20, 2022Observed: 7.31 ft at 7:00PM May 20, 2022Observed: 7.29 ft at 7:30PM May 20, 2022Observed: 7.28 ft at 8:00PM May 20, 2022Observed: 7.27 ft at 8:30PM May 20, 2022Observed: 7.26 ft at 9:00PM May 20, 2022Observed: 7.24 ft at 9:30PM May 20, 2022Observed: 7.17 ft at 12:00AM May 21, 2022Observed: 7.16 ft at 12:30AM May 21, 2022Observed: 7.15 ft at 1:00AM May 21, 2022Observed: 7.14 ft at 1:30AM May 21, 2022Observed: 7.13 ft at 2:00AM May 21, 2022Observed: 7.11 ft at 2:30AM May 21, 2022Observed: 7.1 ft at 3:00AM May 21, 2022Observed: 7.09 ft at 3:30AM May 21, 2022Observed: 7.07 ft at 4:00AM May 21, 2022Observed: 7.06 ft at 4:30AM May 21, 2022Observed: 7.05 ft at 5:00AM May 21, 2022Observed: 7.04 ft at 5:30AM May 21, 2022Observed: 7.03 ft at 6:00AM May 21, 2022Observed: 7.02 ft at 6:30AM May 21, 2022Observed: 7.01 ft at 7:00AM May 21, 2022Observed: 7 ft at 7:30AM May 21, 2022Observed: 6.99 ft at 8:00AM May 21, 2022Observed: 6.98 ft at 8:30AM May 21, 2022Observed: 6.97 ft at 9:00AM May 21, 2022Observed: 6.96 ft at 9:30AM May 21, 2022Observed: 6.95 ft at 10:00AM May 21, 2022Observed: 6.95 ft at 10:30AM May 21, 2022Observed: 6.94 ft at 11:00AM May 21, 2022Observed: 6.93 ft at 11:30AM May 21, 2022Observed: 6.92 ft at 12:00PM May 21, 2022Observed: 6.91 ft at 12:30PM May 21, 2022Observed: 6.91 ft at 1:00PM May 21, 2022Observed: 6.91 ft at 1:30PM May 21, 2022Observed: 6.9 ft at 2:00PM May 21, 2022Observed: 6.9 ft at 2:30PM May 21, 2022Observed: 6.89 ft at 3:00PM May 21, 2022Observed: 6.89 ft at 3:30PM May 21, 2022Observed: 6.89 ft at 4:00PM May 21, 2022Observed: 6.88 ft at 4:30PM May 21, 2022Observed: 6.87 ft at 5:00PM May 21, 2022Observed: 6.87 ft at 5:30PM May 21, 2022Observed: 6.86 ft at 6:00PM May 21, 2022Observed: 6.85 ft at 6:30PM May 21, 2022Observed: 6.85 ft at 7:00PM May 21, 2022Observed: 6.84 ft at 7:30PM May 21, 2022Observed: 6.83 ft at 8:00PM May 21, 2022Observed: 6.82 ft at 8:30PM May 21, 2022Observed: 6.81 ft at 9:00PM May 21, 2022Observed: 6.8 ft at 9:30PM May 21, 2022Observed: 6.79 ft at 10:00PM May 21, 2022Observed: 6.78 ft at 10:30PM May 21, 2022Observed: 6.77 ft at 11:00PM May 21, 2022Observed: 6.76 ft at 11:30PM May 21, 2022Observed: 6.75 ft at 12:00AM May 22, 2022Observed: 6.74 ft at 12:30AM May 22, 2022Observed: 6.74 ft at 1:00AM May 22, 2022Observed: 6.73 ft at 1:30AM May 22, 2022Observed: 6.73 ft at 2:00AM May 22, 2022Observed: 6.73 ft at 2:30AM May 22, 2022Observed: 6.78 ft at 3:00AM May 22, 2022Observed: 6.91 ft at 3:30AM May 22, 2022Observed: 7.14 ft at 4:00AM May 22, 2022Observed: 7.42 ft at 4:30AM May 22, 2022Observed: 7.71 ft at 5:00AM May 22, 2022Observed: 8 ft at 5:30AM May 22, 2022Observed: 8.27 ft at 6:00AM May 22, 2022Observed: 8.51 ft at 6:30AM May 22, 2022Observed: 8.73 ft at 7:00AM May 22, 2022Observed: 8.93 ft at 7:30AM May 22, 2022Observed: 9.14 ft at 8:00AM May 22, 2022Observed: 9.32 ft at 8:30AM May 22, 2022Observed: 9.51 ft at 9:00AM May 22, 2022Observed: 9.69 ft at 9:30AM May 22, 2022Observed: 9.85 ft at 10:00AM May 22, 2022Observed: 10.02 ft at 10:30AM May 22, 2022Observed: 10.16 ft at 11:00AM May 22, 2022Observed: 10.31 ft at 11:30AM May 22, 2022Observed: 10.44 ft at 12:00PM May 22, 2022Observed: 10.58 ft at 12:30PM May 22, 2022Observed: 10.73 ft at 1:00PM May 22, 2022Observed: 10.91 ft at 1:30PM May 22, 2022Observed: 11.07 ft at 2:00PM May 22, 2022Observed: 11.26 ft at 2:30PM May 22, 2022Observed: 11.46 ft at 3:00PM May 22, 2022Highest Observation: 11.67 ft at 3:30PM May 22, 2022Forecast: 13.8 ft 8:00PM May 22, 2022Highest Forecast: 14.1 ft 2:00AM May 23, 2022Forecast: 13.6 ft 8:00AM May 23, 2022Forecast: 12.9 ft 2:00PM May 23, 2022Forecast: 12.2 ft 8:00PM May 23, 2022Forecast: 11.5 ft 2:00AM May 24, 2022Forecast: 10.8 ft 8:00AM May 24, 2022Forecast: 10.2 ft 2:00PM May 24, 2022Forecast: 9.6 ft 8:00PM May 24, 2022Forecast: 9.1 ft 2:00AM May 25, 2022Forecast: 8.6 ft 8:00AM May 25, 2022Forecast: 8.2 ft 2:00PM May 25, 2022Forecast: 7.8 ft 8:00PM May 25, 2022Forecast: 7.5 ft 2:00AM May 26, 2022Forecast: 7.2 ft 8:00AM May 26, 2022Forecast: 7 ft 2:00PM May 26, 2022Forecast: 6.8 ft 8:00PM May 26, 2022Forecast: 6.6 ft 2:00AM May 27, 2022Forecast: 6.5 ft 8:00AM May 27, 2022Jump to USGS siteOTTO1(plotting HGIRG) Graph Created (4:53PM May 22, 2022)ObservedForecast (issued 10:27AM May 22)Latest observed value: 11.67 ft at 3:30 PM EDT 22-May-2022. Flood Stage is 23 ft
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Tabular Data (UTC)
Tabular Data (EDT)
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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
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) 25.17 ft on 05/20/2020
(3) 25.32 ft on 04/27/2019
(4) 22.23 ft on 02/22/2018
(5) 27.55 ft on 07/15/2017
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.
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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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
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: 41.017000° N, Longitude: 84.046900° 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. Gauge zero transitioned from 699 NGVD29 to 698.43 NAVD88 on Oct 1, 2009. 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) 10 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.
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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
Northern Indiana Weather Forecast Office
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Syracuse, IN 46567
(574) 834-1104
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