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Hydrograph River at a Glance Download Inundation
Mapping
Blanchard River at Ottawa Stage (ft)Flow (kcfs)Highest Observation: 4.84 ft at 8:00PM Sep 08, 2021Highest Observation: 4.84 ft at 8:30PM Sep 08, 2021Observed: 4.83 ft at 9:00PM Sep 08, 2021Observed: 4.83 ft at 9:30PM Sep 08, 2021Observed: 4.83 ft at 10:00PM Sep 08, 2021Observed: 4.82 ft at 10:30PM Sep 08, 2021Observed: 4.82 ft at 11:00PM Sep 08, 2021Observed: 4.82 ft at 11:30PM Sep 08, 2021Observed: 4.82 ft at 12:00AM Sep 09, 2021Observed: 4.82 ft at 12:30AM Sep 09, 2021Observed: 4.81 ft at 1:00AM Sep 09, 2021Observed: 4.81 ft at 1:30AM Sep 09, 2021Observed: 4.81 ft at 2:00AM Sep 09, 2021Observed: 4.81 ft at 2:30AM Sep 09, 2021Observed: 4.8 ft at 3:00AM Sep 09, 2021Observed: 4.8 ft at 3:30AM Sep 09, 2021Observed: 4.8 ft at 4:00AM Sep 09, 2021Observed: 4.8 ft at 4:30AM Sep 09, 2021Observed: 4.8 ft at 5:00AM Sep 09, 2021Observed: 4.79 ft at 5:30AM Sep 09, 2021Observed: 4.79 ft at 6:00AM Sep 09, 2021Observed: 4.79 ft at 6:30AM Sep 09, 2021Observed: 4.79 ft at 7:00AM Sep 09, 2021Observed: 4.79 ft at 7:30AM Sep 09, 2021Observed: 4.79 ft at 8:00AM Sep 09, 2021Observed: 4.79 ft at 8:30AM Sep 09, 2021Observed: 4.78 ft at 9:00AM Sep 09, 2021Observed: 4.78 ft at 9:30AM Sep 09, 2021Observed: 4.78 ft at 10:00AM Sep 09, 2021Observed: 4.78 ft at 10:30AM Sep 09, 2021Observed: 4.78 ft at 11:00AM Sep 09, 2021Observed: 4.78 ft at 11:30AM Sep 09, 2021Observed: 4.78 ft at 12:00PM Sep 09, 2021Observed: 4.78 ft at 12:30PM Sep 09, 2021Observed: 4.78 ft at 1:00PM Sep 09, 2021Observed: 4.78 ft at 1:30PM Sep 09, 2021Observed: 4.78 ft at 2:00PM Sep 09, 2021Observed: 4.78 ft at 2:30PM Sep 09, 2021Observed: 4.78 ft at 3:00PM Sep 09, 2021Observed: 4.77 ft at 3:30PM Sep 09, 2021Observed: 4.77 ft at 4:00PM Sep 09, 2021Observed: 4.77 ft at 4:30PM Sep 09, 2021Observed: 4.77 ft at 5:00PM Sep 09, 2021Observed: 4.77 ft at 5:30PM Sep 09, 2021Observed: 4.77 ft at 6:00PM Sep 09, 2021Observed: 4.77 ft at 6:30PM Sep 09, 2021Observed: 4.76 ft at 7:00PM Sep 09, 2021Observed: 4.76 ft at 7:30PM Sep 09, 2021Observed: 4.76 ft at 8:00PM Sep 09, 2021Observed: 4.76 ft at 8:30PM Sep 09, 2021Observed: 4.75 ft at 9:00PM Sep 09, 2021Observed: 4.75 ft at 9:30PM Sep 09, 2021Observed: 4.74 ft at 10:00PM Sep 09, 2021Observed: 4.74 ft at 10:30PM Sep 09, 2021Observed: 4.74 ft at 11:00PM Sep 09, 2021Observed: 4.74 ft at 11:30PM Sep 09, 2021Observed: 4.74 ft at 12:00AM Sep 10, 2021Observed: 4.73 ft at 12:30AM Sep 10, 2021Observed: 4.73 ft at 1:00AM Sep 10, 2021Observed: 4.74 ft at 1:30AM Sep 10, 2021Observed: 4.73 ft at 2:00AM Sep 10, 2021Observed: 4.73 ft at 2:30AM Sep 10, 2021Observed: 4.72 ft at 3:00AM Sep 10, 2021Observed: 4.71 ft at 3:30AM Sep 10, 2021Observed: 4.72 ft at 4:00AM Sep 10, 2021Observed: 4.71 ft at 4:30AM Sep 10, 2021Observed: 4.71 ft at 5:00AM Sep 10, 2021Observed: 4.71 ft at 5:30AM Sep 10, 2021Observed: 4.71 ft at 6:00AM Sep 10, 2021Observed: 4.71 ft at 6:30AM Sep 10, 2021Observed: 4.71 ft at 7:00AM Sep 10, 2021Observed: 4.71 ft at 7:30AM Sep 10, 2021Observed: 4.71 ft at 8:00AM Sep 10, 2021Observed: 4.71 ft at 8:30AM Sep 10, 2021Observed: 4.71 ft at 9:00AM Sep 10, 2021Observed: 4.7 ft at 9:30AM Sep 10, 2021Observed: 4.7 ft at 10:00AM Sep 10, 2021Observed: 4.71 ft at 10:30AM Sep 10, 2021Observed: 4.71 ft at 11:00AM Sep 10, 2021Observed: 4.71 ft at 11:30AM Sep 10, 2021Observed: 4.71 ft at 12:00PM Sep 10, 2021Observed: 4.71 ft at 12:30PM Sep 10, 2021Observed: 4.71 ft at 1:00PM Sep 10, 2021Observed: 4.71 ft at 1:30PM Sep 10, 2021Observed: 4.71 ft at 2:00PM Sep 10, 2021Observed: 4.71 ft at 2:30PM Sep 10, 2021Observed: 4.71 ft at 3:00PM Sep 10, 2021Observed: 4.71 ft at 3:30PM Sep 10, 2021Observed: 4.71 ft at 4:00PM Sep 10, 2021Observed: 4.71 ft at 4:30PM Sep 10, 2021Observed: 4.71 ft at 5:00PM Sep 10, 2021Observed: 4.71 ft at 5:30PM Sep 10, 2021Observed: 4.72 ft at 6:00PM Sep 10, 2021Observed: 4.71 ft at 6:30PM Sep 10, 2021Observed: 4.71 ft at 7:00PM Sep 10, 2021Observed: 4.71 ft at 7:30PM Sep 10, 2021Observed: 4.71 ft at 8:00PM Sep 10, 2021Observed: 4.71 ft at 8:30PM Sep 10, 2021Observed: 4.7 ft at 9:00PM Sep 10, 2021Observed: 4.7 ft at 9:30PM Sep 10, 2021Observed: 4.7 ft at 10:00PM Sep 10, 2021Observed: 4.7 ft at 10:30PM Sep 10, 2021Observed: 4.7 ft at 11:00PM Sep 10, 2021Observed: 4.7 ft at 11:30PM Sep 10, 2021Observed: 4.7 ft at 12:00AM Sep 11, 2021Observed: 4.69 ft at 12:30AM Sep 11, 2021Observed: 4.69 ft at 1:00AM Sep 11, 2021Observed: 4.69 ft at 1:30AM Sep 11, 2021Observed: 4.69 ft at 2:00AM Sep 11, 2021Observed: 4.69 ft at 2:30AM Sep 11, 2021Observed: 4.69 ft at 3:00AM Sep 11, 2021Observed: 4.69 ft at 3:30AM Sep 11, 2021Observed: 4.69 ft at 4:00AM Sep 11, 2021Observed: 4.69 ft at 4:30AM Sep 11, 2021Observed: 4.69 ft at 5:00AM Sep 11, 2021Observed: 4.69 ft at 5:30AM Sep 11, 2021Observed: 4.69 ft at 6:00AM Sep 11, 2021Observed: 4.69 ft at 6:30AM Sep 11, 2021Observed: 4.69 ft at 7:00AM Sep 11, 2021Observed: 4.69 ft at 7:30AM Sep 11, 2021Observed: 4.68 ft at 8:00AM Sep 11, 2021Observed: 4.69 ft at 8:30AM Sep 11, 2021Observed: 4.68 ft at 9:00AM Sep 11, 2021Observed: 4.68 ft at 9:30AM Sep 11, 2021Observed: 4.69 ft at 10:00AM Sep 11, 2021Observed: 4.69 ft at 10:30AM Sep 11, 2021Observed: 4.69 ft at 11:00AM Sep 11, 2021Observed: 4.69 ft at 11:30AM Sep 11, 2021Observed: 4.69 ft at 12:00PM Sep 11, 2021Observed: 4.69 ft at 12:30PM Sep 11, 2021Observed: 4.69 ft at 1:00PM Sep 11, 2021Observed: 4.69 ft at 1:30PM Sep 11, 2021Observed: 4.7 ft at 2:00PM Sep 11, 2021Observed: 4.69 ft at 2:30PM Sep 11, 2021Observed: 4.7 ft at 3:00PM Sep 11, 2021Observed: 4.69 ft at 3:30PM Sep 11, 2021Observed: 4.7 ft at 4:00PM Sep 11, 2021Observed: 4.7 ft at 4:30PM Sep 11, 2021Observed: 4.7 ft at 5:00PM Sep 11, 2021Observed: 4.69 ft at 5:30PM Sep 11, 2021Observed: 4.69 ft at 6:00PM Sep 11, 2021Observed: 4.69 ft at 6:30PM Sep 11, 2021Observed: 4.69 ft at 7:00PM Sep 11, 2021Observed: 4.69 ft at 7:30PM Sep 11, 2021Observed: 4.68 ft at 8:00PM Sep 11, 2021Observed: 4.68 ft at 8:30PM Sep 11, 2021Observed: 4.67 ft at 9:00PM Sep 11, 2021Observed: 4.66 ft at 9:30PM Sep 11, 2021Observed: 4.65 ft at 10:00PM Sep 11, 2021Observed: 4.64 ft at 10:30PM Sep 11, 2021Observed: 4.63 ft at 11:00PM Sep 11, 2021Observed: 4.62 ft at 11:30PM Sep 11, 2021Observed: 4.6 ft at 12:00AM Sep 12, 2021Observed: 4.59 ft at 12:30AM Sep 12, 2021Observed: 4.58 ft at 1:00AM Sep 12, 2021Observed: 4.57 ft at 1:30AM Sep 12, 2021Observed: 4.55 ft at 2:00AM Sep 12, 2021Observed: 4.54 ft at 2:30AM Sep 12, 2021Observed: 4.53 ft at 3:00AM Sep 12, 2021Observed: 4.52 ft at 3:30AM Sep 12, 2021Observed: 4.51 ft at 4:00AM Sep 12, 2021Observed: 4.51 ft at 4:30AM Sep 12, 2021Observed: 4.5 ft at 5:00AM Sep 12, 2021Observed: 4.49 ft at 5:30AM Sep 12, 2021Observed: 4.48 ft at 6:00AM Sep 12, 2021Observed: 4.48 ft at 6:30AM Sep 12, 2021Observed: 4.47 ft at 7:00AM Sep 12, 2021Observed: 4.47 ft at 7:30AM Sep 12, 2021Observed: 4.46 ft at 8:00AM Sep 12, 2021Observed: 4.45 ft at 8:30AM Sep 12, 2021Observed: 4.45 ft at 9:00AM Sep 12, 2021Observed: 4.45 ft at 9:30AM Sep 12, 2021Observed: 4.44 ft at 10:00AM Sep 12, 2021Observed: 4.44 ft at 10:30AM Sep 12, 2021Observed: 4.44 ft at 11:00AM Sep 12, 2021Observed: 4.44 ft at 11:30AM Sep 12, 2021Observed: 4.44 ft at 12:00PM Sep 12, 2021Observed: 4.44 ft at 12:30PM Sep 12, 2021Observed: 4.44 ft at 1:00PM Sep 12, 2021Observed: 4.44 ft at 1:30PM Sep 12, 2021Observed: 4.44 ft at 2:00PM Sep 12, 2021Observed: 4.44 ft at 2:30PM Sep 12, 2021Observed: 4.43 ft at 3:00PM Sep 12, 2021Observed: 4.43 ft at 3:30PM Sep 12, 2021Observed: 4.44 ft at 4:00PM Sep 12, 2021Observed: 4.44 ft at 4:30PM Sep 12, 2021Observed: 4.45 ft at 5:00PM Sep 12, 2021Observed: 4.46 ft at 5:30PM Sep 12, 2021Observed: 4.48 ft at 6:00PM Sep 12, 2021Observed: 4.49 ft at 6:30PM Sep 12, 2021Observed: 4.5 ft at 7:00PM Sep 12, 2021Observed: 4.51 ft at 7:30PM Sep 12, 2021Observed: 4.52 ft at 8:00PM Sep 12, 2021Observed: 4.54 ft at 8:30PM Sep 12, 2021Observed: 4.55 ft at 9:00PM Sep 12, 2021Observed: 4.55 ft at 9:30PM Sep 12, 2021Observed: 4.56 ft at 10:00PM Sep 12, 2021Observed: 4.56 ft at 10:30PM Sep 12, 2021Observed: 4.55 ft at 11:00PM Sep 12, 2021Observed: 4.55 ft at 11:30PM Sep 12, 2021Observed: 4.55 ft at 12:00AM Sep 13, 2021Observed: 4.54 ft at 12:30AM Sep 13, 2021Observed: 4.53 ft at 1:00AM Sep 13, 2021Observed: 4.52 ft at 1:30AM Sep 13, 2021Observed: 4.51 ft at 2:00AM Sep 13, 2021Observed: 4.5 ft at 2:30AM Sep 13, 2021Observed: 4.49 ft at 3:00AM Sep 13, 2021Observed: 4.49 ft at 3:30AM Sep 13, 2021Observed: 4.48 ft at 4:00AM Sep 13, 2021Observed: 4.47 ft at 4:30AM Sep 13, 2021Observed: 4.46 ft at 5:00AM Sep 13, 2021Observed: 4.45 ft at 5:30AM Sep 13, 2021Observed: 4.44 ft at 6:00AM Sep 13, 2021Observed: 4.44 ft at 6:30AM Sep 13, 2021Observed: 4.43 ft at 7:00AM Sep 13, 2021Observed: 4.42 ft at 7:30AM Sep 13, 2021Observed: 4.42 ft at 8:00AM Sep 13, 2021Observed: 4.41 ft at 8:30AM Sep 13, 2021Observed: 4.41 ft at 9:00AM Sep 13, 2021Observed: 4.41 ft at 9:30AM Sep 13, 2021Observed: 4.4 ft at 10:00AM Sep 13, 2021Observed: 4.4 ft at 10:30AM Sep 13, 2021Observed: 4.39 ft at 11:00AM Sep 13, 2021Observed: 4.4 ft at 11:30AM Sep 13, 2021Observed: 4.4 ft at 12:00PM Sep 13, 2021Observed: 4.4 ft at 12:30PM Sep 13, 2021Observed: 4.4 ft at 1:00PM Sep 13, 2021Observed: 4.4 ft at 1:30PM Sep 13, 2021Observed: 4.4 ft at 2:00PM Sep 13, 2021Observed: 4.39 ft at 2:30PM Sep 13, 2021Observed: 4.39 ft at 3:00PM Sep 13, 2021Observed: 4.39 ft at 3:30PM Sep 13, 2021Observed: 4.39 ft at 4:00PM Sep 13, 2021Observed: 4.39 ft at 4:30PM Sep 13, 2021Observed: 4.39 ft at 5:00PM Sep 13, 2021Observed: 4.39 ft at 5:30PM Sep 13, 2021Observed: 4.39 ft at 6:00PM Sep 13, 2021Observed: 4.39 ft at 6:30PM Sep 13, 2021Observed: 4.38 ft at 7:00PM Sep 13, 2021Observed: 4.38 ft at 7:30PM Sep 13, 2021Observed: 4.38 ft at 8:00PM Sep 13, 2021Observed: 4.38 ft at 8:30PM Sep 13, 2021Observed: 4.38 ft at 9:00PM Sep 13, 2021Observed: 4.37 ft at 9:30PM Sep 13, 2021Observed: 4.37 ft at 10:00PM Sep 13, 2021Observed: 4.37 ft at 10:30PM Sep 13, 2021Observed: 4.37 ft at 11:00PM Sep 13, 2021Observed: 4.38 ft at 11:30PM Sep 13, 2021Observed: 4.38 ft at 12:00AM Sep 14, 2021Observed: 4.38 ft at 12:30AM Sep 14, 2021Observed: 4.39 ft at 1:00AM Sep 14, 2021Observed: 4.4 ft at 1:30AM Sep 14, 2021Observed: 4.41 ft at 2:00AM Sep 14, 2021Observed: 4.42 ft at 2:30AM Sep 14, 2021Observed: 4.44 ft at 3:00AM Sep 14, 2021Observed: 4.46 ft at 3:30AM Sep 14, 2021Observed: 4.47 ft at 4:00AM Sep 14, 2021Observed: 4.49 ft at 4:30AM Sep 14, 2021Observed: 4.5 ft at 5:00AM Sep 14, 2021Observed: 4.52 ft at 5:30AM Sep 14, 2021Observed: 4.53 ft at 6:00AM Sep 14, 2021Observed: 4.54 ft at 6:30AM Sep 14, 2021Observed: 4.56 ft at 7:00AM Sep 14, 2021Observed: 4.56 ft at 7:30AM Sep 14, 2021Observed: 4.57 ft at 8:00AM Sep 14, 2021Observed: 4.58 ft at 8:30AM Sep 14, 2021Observed: 4.59 ft at 9:00AM Sep 14, 2021Observed: 4.59 ft at 9:30AM Sep 14, 2021Observed: 4.6 ft at 10:00AM Sep 14, 2021Observed: 4.61 ft at 10:30AM Sep 14, 2021Observed: 4.61 ft at 11:00AM Sep 14, 2021Observed: 4.62 ft at 11:30AM Sep 14, 2021Observed: 4.62 ft at 12:00PM Sep 14, 2021Observed: 4.63 ft at 12:30PM Sep 14, 2021Observed: 4.63 ft at 1:00PM Sep 14, 2021Observed: 4.63 ft at 1:30PM Sep 14, 2021Observed: 4.63 ft at 2:00PM Sep 14, 2021Observed: 4.63 ft at 2:30PM Sep 14, 2021Observed: 4.63 ft at 3:00PM Sep 14, 2021Observed: 4.63 ft at 3:30PM Sep 14, 2021Observed: 4.63 ft at 4:00PM Sep 14, 2021Observed: 4.63 ft at 4:30PM Sep 14, 2021Observed: 4.63 ft at 5:00PM Sep 14, 2021Observed: 4.63 ft at 5:30PM Sep 14, 2021Observed: 4.63 ft at 6:00PM Sep 14, 2021Observed: 4.63 ft at 6:30PM Sep 14, 2021Observed: 4.63 ft at 7:00PM Sep 14, 2021Observed: 4.62 ft at 7:30PM Sep 14, 2021Observed: 4.62 ft at 8:00PM Sep 14, 2021Observed: 4.62 ft at 8:30PM Sep 14, 2021Observed: 4.62 ft at 9:00PM Sep 14, 2021Observed: 4.62 ft at 9:30PM Sep 14, 2021Observed: 4.62 ft at 10:00PM Sep 14, 2021Observed: 4.62 ft at 10:30PM Sep 14, 2021Observed: 4.61 ft at 11:00PM Sep 14, 2021Observed: 4.62 ft at 11:30PM Sep 14, 2021Observed: 4.62 ft at 12:00AM Sep 15, 2021Observed: 4.62 ft at 12:30AM Sep 15, 2021Observed: 4.62 ft at 1:00AM Sep 15, 2021Observed: 4.62 ft at 1:30AM Sep 15, 2021Observed: 4.62 ft at 2:00AM Sep 15, 2021Observed: 4.62 ft at 2:30AM Sep 15, 2021Observed: 4.62 ft at 3:00AM Sep 15, 2021Observed: 4.62 ft at 3:30AM Sep 15, 2021Observed: 4.62 ft at 4:00AM Sep 15, 2021Observed: 4.62 ft at 4:30AM Sep 15, 2021Observed: 4.62 ft at 5:00AM Sep 15, 2021Observed: 4.62 ft at 5:30AM Sep 15, 2021Observed: 4.62 ft at 6:00AM Sep 15, 2021Observed: 4.62 ft at 6:30AM Sep 15, 2021Observed: 4.62 ft at 7:00AM Sep 15, 2021Observed: 4.63 ft at 7:30AM Sep 15, 2021Observed: 4.63 ft at 8:00AM Sep 15, 2021Observed: 4.63 ft at 8:30AM Sep 15, 2021Observed: 4.63 ft at 9:00AM Sep 15, 2021Observed: 4.63 ft at 9:30AM Sep 15, 2021Observed: 4.64 ft at 10:00AM Sep 15, 2021Observed: 4.64 ft at 10:30AM Sep 15, 2021Observed: 4.64 ft at 11:00AM Sep 15, 2021Observed: 4.65 ft at 11:30AM Sep 15, 2021Observed: 4.65 ft at 12:00PM Sep 15, 2021Observed: 4.66 ft at 12:30PM Sep 15, 2021Observed: 4.66 ft at 1:00PM Sep 15, 2021Observed: 4.67 ft at 1:30PM Sep 15, 2021Observed: 4.67 ft at 2:00PM Sep 15, 2021Observed: 4.67 ft at 2:30PM Sep 15, 2021Observed: 4.68 ft at 3:00PM Sep 15, 2021Observed: 4.68 ft at 3:30PM Sep 15, 2021Observed: 4.68 ft at 4:00PM Sep 15, 2021Observed: 4.68 ft at 4:30PM Sep 15, 2021Observed: 4.69 ft at 5:00PM Sep 15, 2021Observed: 4.69 ft at 5:30PM Sep 15, 2021Observed: 4.69 ft at 6:00PM Sep 15, 2021Observed: 4.69 ft at 6:30PM Sep 15, 2021Observed: 4.69 ft at 7:00PM Sep 15, 2021Observed: 4.68 ft at 7:30PM Sep 15, 2021Observed: 4.68 ft at 8:00PM Sep 15, 2021Observed: 4.68 ft at 8:30PM Sep 15, 2021Observed: 4.68 ft at 9:00PM Sep 15, 2021Observed: 4.68 ft at 9:30PM Sep 15, 2021Observed: 4.68 ft at 10:00PM Sep 15, 2021Observed: 4.68 ft at 10:30PM Sep 15, 2021Observed: 4.67 ft at 11:00PM Sep 15, 2021Observed: 4.67 ft at 11:30PM Sep 15, 2021Observed: 4.67 ft at 12:00AM Sep 16, 2021Observed: 4.67 ft at 12:30AM Sep 16, 2021Observed: 4.67 ft at 1:00AM Sep 16, 2021Observed: 4.67 ft at 1:30AM Sep 16, 2021Observed: 4.67 ft at 2:00AM Sep 16, 2021Observed: 4.66 ft at 2:30AM Sep 16, 2021Observed: 4.66 ft at 3:00AM Sep 16, 2021Observed: 4.66 ft at 3:30AM Sep 16, 2021Observed: 4.66 ft at 4:00AM Sep 16, 2021Observed: 4.67 ft at 4:30AM Sep 16, 2021Observed: 4.66 ft at 5:00AM Sep 16, 2021Observed: 4.67 ft at 5:30AM Sep 16, 2021Observed: 4.65 ft at 6:00AM Sep 16, 2021Observed: 4.65 ft at 6:30AM Sep 16, 2021Observed: 4.66 ft at 7:00AM Sep 16, 2021Observed: 4.65 ft at 7:30AM Sep 16, 2021Observed: 4.65 ft at 8:00AM Sep 16, 2021Observed: 4.65 ft at 8:30AM Sep 16, 2021Observed: 4.66 ft at 9:00AM Sep 16, 2021Observed: 4.66 ft at 9:30AM Sep 16, 2021Observed: 4.66 ft at 10:00AM Sep 16, 2021Observed: 4.66 ft at 10:30AM Sep 16, 2021Observed: 4.66 ft at 11:00AM Sep 16, 2021Observed: 4.67 ft at 11:30AM Sep 16, 2021Observed: 4.67 ft at 12:00PM Sep 16, 2021Observed: 4.68 ft at 12:30PM Sep 16, 2021Observed: 4.68 ft at 1:00PM Sep 16, 2021Observed: 4.68 ft at 1:30PM Sep 16, 2021Observed: 4.68 ft at 2:00PM Sep 16, 2021Observed: 4.69 ft at 2:30PM Sep 16, 2021Observed: 4.69 ft at 3:00PM Sep 16, 2021Observed: 4.69 ft at 3:30PM Sep 16, 2021Observed: 4.69 ft at 4:00PM Sep 16, 2021Observed: 4.7 ft at 4:30PM Sep 16, 2021Observed: 4.7 ft at 5:00PM Sep 16, 2021Observed: 4.7 ft at 5:30PM Sep 16, 2021Observed: 4.71 ft at 6:00PM Sep 16, 2021Observed: 4.72 ft at 6:30PM Sep 16, 2021Observed: 4.72 ft at 7:00PM Sep 16, 2021Observed: 4.72 ft at 7:30PM Sep 16, 2021Observed: 4.72 ft at 8:00PM Sep 16, 2021Observed: 4.73 ft at 8:30PM Sep 16, 2021Observed: 4.73 ft at 9:00PM Sep 16, 2021Observed: 4.74 ft at 9:30PM Sep 16, 2021Observed: 4.75 ft at 10:00PM Sep 16, 2021Observed: 4.75 ft at 10:30PM Sep 16, 2021Observed: 4.76 ft at 11:00PM Sep 16, 2021Observed: 4.76 ft at 11:30PM Sep 16, 2021Observed: 4.77 ft at 12:00AM Sep 17, 2021Observed: 4.77 ft at 12:30AM Sep 17, 2021Observed: 4.78 ft at 1:00AM Sep 17, 2021Observed: 4.78 ft at 1:30AM Sep 17, 2021Observed: 4.79 ft at 2:00AM Sep 17, 2021Observed: 4.79 ft at 2:30AM Sep 17, 2021Observed: 4.8 ft at 3:00AM Sep 17, 2021Observed: 4.8 ft at 3:30AM Sep 17, 2021Observed: 4.81 ft at 4:00AM Sep 17, 2021Observed: 4.81 ft at 4:30AM Sep 17, 2021Observed: 4.81 ft at 5:00AM Sep 17, 2021Observed: 4.81 ft at 5:30AM Sep 17, 2021Observed: 4.82 ft at 6:00AM Sep 17, 2021Observed: 4.82 ft at 6:30AM Sep 17, 2021Observed: 4.82 ft at 7:00AM Sep 17, 2021Observed: 4.82 ft at 7:30AM Sep 17, 2021Observed: 4.83 ft at 8:00AM Sep 17, 2021Observed: 4.82 ft at 8:30AM Sep 17, 2021Observed: 4.83 ft at 9:00AM Sep 17, 2021Observed: 4.82 ft at 9:30AM Sep 17, 2021Observed: 4.82 ft at 10:00AM Sep 17, 2021Observed: 4.82 ft at 10:30AM Sep 17, 2021Observed: 4.82 ft at 11:00AM Sep 17, 2021Observed: 4.83 ft at 11:30AM Sep 17, 2021Observed: 4.83 ft at 12:00PM Sep 17, 2021Observed: 4.83 ft at 12:30PM Sep 17, 2021Highest Observation: 4.84 ft at 1:00PM Sep 17, 2021Observed: 4.83 ft at 1:30PM Sep 17, 2021Observed: 4.83 ft at 2:00PM Sep 17, 2021Observed: 4.83 ft at 2:30PM Sep 17, 2021Observed: 4.83 ft at 3:00PM Sep 17, 2021Observed: 4.83 ft at 3:30PM Sep 17, 2021Observed: 4.82 ft at 4:00PM Sep 17, 2021Observed: 4.82 ft at 4:30PM Sep 17, 2021Observed: 4.82 ft at 5:00PM Sep 17, 2021Observed: 4.81 ft at 5:30PM Sep 17, 2021Observed: 4.81 ft at 6:00PM Sep 17, 2021Observed: 4.81 ft at 6:30PM Sep 17, 2021Observed: 4.8 ft at 7:00PM Sep 17, 2021Observed: 4.8 ft at 7:30PM Sep 17, 2021Observed: 4.79 ft at 8:00PM Sep 17, 2021Observed: 4.79 ft at 8:30PM Sep 17, 2021Observed: 4.78 ft at 9:00PM Sep 17, 2021Observed: 4.78 ft at 9:30PM Sep 17, 2021Observed: 4.77 ft at 10:00PM Sep 17, 2021Observed: 4.77 ft at 10:30PM Sep 17, 2021Observed: 4.76 ft at 11:00PM Sep 17, 2021Observed: 4.76 ft at 11:30PM Sep 17, 2021Observed: 4.76 ft at 12:00AM Sep 18, 2021Observed: 4.75 ft at 12:30AM Sep 18, 2021Observed: 4.75 ft at 1:00AM Sep 18, 2021Observed: 4.74 ft at 1:30AM Sep 18, 2021Observed: 4.74 ft at 2:00AM Sep 18, 2021Observed: 4.74 ft at 2:30AM Sep 18, 2021Observed: 4.73 ft at 3:00AM Sep 18, 2021Observed: 4.73 ft at 3:30AM Sep 18, 2021Observed: 4.73 ft at 4:00AM Sep 18, 2021Observed: 4.72 ft at 4:30AM Sep 18, 2021Observed: 4.72 ft at 5:00AM Sep 18, 2021Observed: 4.72 ft at 5:30AM Sep 18, 2021Observed: 4.71 ft at 6:00AM Sep 18, 2021Observed: 4.71 ft at 6:30AM Sep 18, 2021Observed: 4.71 ft at 7:00AM Sep 18, 2021Observed: 4.7 ft at 7:30AM Sep 18, 2021Observed: 4.7 ft at 8:00AM Sep 18, 2021Observed: 4.7 ft at 8:30AM Sep 18, 2021Observed: 4.7 ft at 9:00AM Sep 18, 2021Observed: 4.7 ft at 9:30AM Sep 18, 2021Observed: 4.7 ft at 10:00AM Sep 18, 2021Observed: 4.7 ft at 10:30AM Sep 18, 2021Observed: 4.69 ft at 11:00AM Sep 18, 2021Observed: 4.7 ft at 11:30AM Sep 18, 2021Observed: 4.7 ft at 12:00PM Sep 18, 2021Observed: 4.7 ft at 12:30PM Sep 18, 2021Observed: 4.7 ft at 1:00PM Sep 18, 2021Observed: 4.7 ft at 1:30PM Sep 18, 2021Observed: 4.69 ft at 2:00PM Sep 18, 2021Observed: 4.69 ft at 2:30PM Sep 18, 2021Observed: 4.69 ft at 3:00PM Sep 18, 2021Observed: 4.69 ft at 3:30PM Sep 18, 2021Observed: 4.69 ft at 4:00PM Sep 18, 2021Observed: 4.68 ft at 4:30PM Sep 18, 2021Observed: 4.68 ft at 5:00PM Sep 18, 2021Observed: 4.68 ft at 5:30PM Sep 18, 2021Observed: 4.68 ft at 6:00PM Sep 18, 2021Observed: 4.67 ft at 6:30PM Sep 18, 2021Highest Forecast: 4.7 ft 8:00PM Sep 18, 2021Highest Forecast: 4.7 ft 2:00AM Sep 19, 2021Highest Forecast: 4.7 ft 8:00AM Sep 19, 2021Highest Forecast: 4.7 ft 2:00PM Sep 19, 2021Highest Forecast: 4.7 ft 8:00PM Sep 19, 2021Highest Forecast: 4.7 ft 2:00AM Sep 20, 2021Highest Forecast: 4.7 ft 8:00AM Sep 20, 2021Highest Forecast: 4.7 ft 2:00PM Sep 20, 2021Highest Forecast: 4.7 ft 8:00PM Sep 20, 2021Highest Forecast: 4.7 ft 2:00AM Sep 21, 2021Highest Forecast: 4.7 ft 8:00AM Sep 21, 2021Highest Forecast: 4.7 ft 2:00PM Sep 21, 2021Highest Forecast: 4.7 ft 8:00PM Sep 21, 2021Highest Forecast: 4.7 ft 2:00AM Sep 22, 2021Highest Forecast: 4.7 ft 8:00AM Sep 22, 2021Highest Forecast: 4.7 ft 2:00PM Sep 22, 2021Highest Forecast: 4.7 ft 8:00PM Sep 22, 2021Highest Forecast: 4.7 ft 2:00AM Sep 23, 2021Highest Forecast: 4.7 ft 8:00AM Sep 23, 2021Jump to USGS siteOTTO1(plotting HGIRG) Graph Created (7:08PM Sep 18, 2021)ObservedForecast (issued 10:09AM Sep 18)Latest observed value: 4.67 ft at 6:30 PM EDT 18-Sep-2021. Flood Stage is 23 ft
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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 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
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(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
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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: 41.017000° 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) 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.

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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
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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