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Hydrograph River at a Glance Download
Illinois River at Seneca Stage (ft)Observed: 20.63 ft at 2:15PM Aug 08, 2020Observed: 20.66 ft at 2:30PM Aug 08, 2020Observed: 20.65 ft at 2:45PM Aug 08, 2020Observed: 20.68 ft at 3:00PM Aug 08, 2020Observed: 20.71 ft at 3:15PM Aug 08, 2020Observed: 20.73 ft at 3:30PM Aug 08, 2020Observed: 20.73 ft at 3:45PM Aug 08, 2020Observed: 20.77 ft at 4:00PM Aug 08, 2020Observed: 20.81 ft at 4:15PM Aug 08, 2020Observed: 20.81 ft at 4:30PM Aug 08, 2020Observed: 20.83 ft at 4:45PM Aug 08, 2020Observed: 20.84 ft at 5:00PM Aug 08, 2020Observed: 20.81 ft at 5:15PM Aug 08, 2020Observed: 20.83 ft at 5:30PM Aug 08, 2020Observed: 20.83 ft at 5:45PM Aug 08, 2020Observed: 20.72 ft at 6:00PM Aug 08, 2020Observed: 20.77 ft at 6:15PM Aug 08, 2020Observed: 20.78 ft at 6:30PM Aug 08, 2020Observed: 20.76 ft at 6:45PM Aug 08, 2020Observed: 20.79 ft at 7:00PM Aug 08, 2020Observed: 20.78 ft at 7:15PM Aug 08, 2020Observed: 20.81 ft at 7:30PM Aug 08, 2020Observed: 20.79 ft at 7:45PM Aug 08, 2020Observed: 20.77 ft at 8:00PM Aug 08, 2020Observed: 20.78 ft at 8:15PM Aug 08, 2020Observed: 20.8 ft at 8:30PM Aug 08, 2020Observed: 20.79 ft at 8:45PM Aug 08, 2020Observed: 20.77 ft at 9:00PM Aug 08, 2020Observed: 20.79 ft at 9:15PM Aug 08, 2020Observed: 20.79 ft at 9:30PM Aug 08, 2020Observed: 20.79 ft at 9:45PM Aug 08, 2020Observed: 20.79 ft at 10:00PM Aug 08, 2020Observed: 20.8 ft at 10:15PM Aug 08, 2020Observed: 20.8 ft at 10:30PM Aug 08, 2020Observed: 20.8 ft at 10:45PM Aug 08, 2020Observed: 20.8 ft at 11:00PM Aug 08, 2020Observed: 20.8 ft at 11:15PM Aug 08, 2020Observed: 20.78 ft at 11:30PM Aug 08, 2020Observed: 20.77 ft at 11:45PM Aug 08, 2020Observed: 20.75 ft at 12:00AM Aug 09, 2020Observed: 20.73 ft at 12:15AM Aug 09, 2020Observed: 20.72 ft at 12:30AM Aug 09, 2020Observed: 20.71 ft at 12:45AM Aug 09, 2020Observed: 20.69 ft at 1:00AM Aug 09, 2020Observed: 20.68 ft at 1:15AM Aug 09, 2020Observed: 20.66 ft at 1:30AM Aug 09, 2020Observed: 20.65 ft at 1:45AM Aug 09, 2020Observed: 20.63 ft at 2:00AM Aug 09, 2020Observed: 20.62 ft at 2:15AM Aug 09, 2020Observed: 20.61 ft at 2:30AM Aug 09, 2020Observed: 20.6 ft at 2:45AM Aug 09, 2020Observed: 20.59 ft at 3:00AM Aug 09, 2020Observed: 20.57 ft at 3:15AM Aug 09, 2020Observed: 20.58 ft at 3:30AM Aug 09, 2020Observed: 20.58 ft at 3:45AM Aug 09, 2020Observed: 20.57 ft at 4:00AM Aug 09, 2020Observed: 20.58 ft at 4:15AM Aug 09, 2020Observed: 20.57 ft at 4:30AM Aug 09, 2020Observed: 20.56 ft at 4:45AM Aug 09, 2020Observed: 20.56 ft at 5:00AM Aug 09, 2020Observed: 20.56 ft at 5:15AM Aug 09, 2020Observed: 20.55 ft at 5:30AM Aug 09, 2020Observed: 20.54 ft at 5:45AM Aug 09, 2020Observed: 20.54 ft at 6:00AM Aug 09, 2020Observed: 20.6 ft at 6:15AM Aug 09, 2020Observed: 20.62 ft at 6:30AM Aug 09, 2020Observed: 20.65 ft at 6:45AM Aug 09, 2020Observed: 20.64 ft at 7:00AM Aug 09, 2020Observed: 20.67 ft at 7:15AM Aug 09, 2020Observed: 20.68 ft at 7:30AM Aug 09, 2020Observed: 20.69 ft at 7:45AM Aug 09, 2020Observed: 20.7 ft at 8:00AM Aug 09, 2020Observed: 20.7 ft at 8:15AM Aug 09, 2020Observed: 20.7 ft at 8:30AM Aug 09, 2020Observed: 20.71 ft at 8:45AM Aug 09, 2020Observed: 20.67 ft at 9:00AM Aug 09, 2020Observed: 20.67 ft at 9:15AM Aug 09, 2020Observed: 20.64 ft at 9:30AM Aug 09, 2020Observed: 20.63 ft at 9:45AM Aug 09, 2020Observed: 20.6 ft at 10:00AM Aug 09, 2020Observed: 20.61 ft at 10:15AM Aug 09, 2020Observed: 20.6 ft at 10:30AM Aug 09, 2020Observed: 20.61 ft at 10:45AM Aug 09, 2020Observed: 20.6 ft at 11:00AM Aug 09, 2020Observed: 20.58 ft at 11:15AM Aug 09, 2020Observed: 20.58 ft at 11:30AM Aug 09, 2020Observed: 20.56 ft at 11:45AM Aug 09, 2020Observed: 20.58 ft at 12:00PM Aug 09, 2020Observed: 20.54 ft at 12:15PM Aug 09, 2020Observed: 20.55 ft at 12:30PM Aug 09, 2020Observed: 20.55 ft at 12:45PM Aug 09, 2020Observed: 20.54 ft at 1:00PM Aug 09, 2020Observed: 20.54 ft at 1:15PM Aug 09, 2020Observed: 20.54 ft at 1:30PM Aug 09, 2020Observed: 20.54 ft at 1:45PM Aug 09, 2020Observed: 20.52 ft at 2:00PM Aug 09, 2020Observed: 20.59 ft at 2:15PM Aug 09, 2020Observed: 20.56 ft at 2:30PM Aug 09, 2020Observed: 20.51 ft at 2:45PM Aug 09, 2020Observed: 20.5 ft at 3:00PM Aug 09, 2020Observed: 20.46 ft at 3:15PM Aug 09, 2020Observed: 20.5 ft at 3:30PM Aug 09, 2020Observed: 20.5 ft at 3:45PM Aug 09, 2020Observed: 20.47 ft at 4:00PM Aug 09, 2020Observed: 20.48 ft at 4:15PM Aug 09, 2020Observed: 20.46 ft at 4:30PM Aug 09, 2020Observed: 20.53 ft at 4:45PM Aug 09, 2020Observed: 20.59 ft at 5:00PM Aug 09, 2020Observed: 20.52 ft at 5:15PM Aug 09, 2020Observed: 20.51 ft at 5:30PM Aug 09, 2020Observed: 20.54 ft at 5:45PM Aug 09, 2020Observed: 20.55 ft at 6:00PM Aug 09, 2020Observed: 20.54 ft at 6:15PM Aug 09, 2020Observed: 20.52 ft at 6:30PM Aug 09, 2020Observed: 20.54 ft at 6:45PM Aug 09, 2020Observed: 20.55 ft at 7:00PM Aug 09, 2020Observed: 20.55 ft at 7:15PM Aug 09, 2020Observed: 20.56 ft at 7:30PM Aug 09, 2020Observed: 20.56 ft at 7:45PM Aug 09, 2020Observed: 20.57 ft at 8:00PM Aug 09, 2020Observed: 20.58 ft at 8:15PM Aug 09, 2020Observed: 20.58 ft at 8:30PM Aug 09, 2020Observed: 20.59 ft at 8:45PM Aug 09, 2020Observed: 20.6 ft at 9:00PM Aug 09, 2020Observed: 20.59 ft at 9:15PM Aug 09, 2020Observed: 20.63 ft at 9:30PM Aug 09, 2020Observed: 20.63 ft at 9:45PM Aug 09, 2020Observed: 20.65 ft at 10:00PM Aug 09, 2020Observed: 20.65 ft at 10:15PM Aug 09, 2020Observed: 20.66 ft at 10:30PM Aug 09, 2020Observed: 20.67 ft at 10:45PM Aug 09, 2020Observed: 20.68 ft at 11:00PM Aug 09, 2020Observed: 20.64 ft at 11:15PM Aug 09, 2020Observed: 20.64 ft at 11:30PM Aug 09, 2020Observed: 20.63 ft at 11:45PM Aug 09, 2020Observed: 20.62 ft at 12:00AM Aug 10, 2020Observed: 20.62 ft at 12:15AM Aug 10, 2020Observed: 20.63 ft at 12:30AM Aug 10, 2020Observed: 20.63 ft at 12:45AM Aug 10, 2020Observed: 20.63 ft at 1:00AM Aug 10, 2020Observed: 20.63 ft at 1:15AM Aug 10, 2020Observed: 20.63 ft at 1:30AM Aug 10, 2020Observed: 20.63 ft at 1:45AM Aug 10, 2020Observed: 20.63 ft at 2:00AM Aug 10, 2020Observed: 20.63 ft at 2:15AM Aug 10, 2020Observed: 20.63 ft at 2:30AM Aug 10, 2020Observed: 20.63 ft at 2:45AM Aug 10, 2020Observed: 20.63 ft at 3:00AM Aug 10, 2020Observed: 20.63 ft at 3:15AM Aug 10, 2020Observed: 20.63 ft at 3:30AM Aug 10, 2020Observed: 20.63 ft at 3:45AM Aug 10, 2020Observed: 20.63 ft at 4:00AM Aug 10, 2020Observed: 20.63 ft at 4:15AM Aug 10, 2020Observed: 20.63 ft at 4:30AM Aug 10, 2020Observed: 20.63 ft at 4:45AM Aug 10, 2020Observed: 20.63 ft at 5:00AM Aug 10, 2020Observed: 20.64 ft at 5:15AM Aug 10, 2020Observed: 20.64 ft at 5:30AM Aug 10, 2020Observed: 20.64 ft at 5:45AM Aug 10, 2020Observed: 20.64 ft at 6:00AM Aug 10, 2020Observed: 20.64 ft at 6:15AM Aug 10, 2020Observed: 20.64 ft at 6:30AM Aug 10, 2020Observed: 20.64 ft at 6:45AM Aug 10, 2020Observed: 20.64 ft at 7:00AM Aug 10, 2020Observed: 20.64 ft at 7:15AM Aug 10, 2020Observed: 20.64 ft at 7:30AM Aug 10, 2020Observed: 20.64 ft at 7:45AM Aug 10, 2020Observed: 20.64 ft at 8:00AM Aug 10, 2020Observed: 20.64 ft at 8:15AM Aug 10, 2020Observed: 20.64 ft at 8:30AM Aug 10, 2020Observed: 20.64 ft at 8:45AM Aug 10, 2020Observed: 20.64 ft at 9:00AM Aug 10, 2020Observed: 20.64 ft at 9:15AM Aug 10, 2020Observed: 20.65 ft at 9:30AM Aug 10, 2020Observed: 20.64 ft at 9:45AM Aug 10, 2020Observed: 20.64 ft at 10:00AM Aug 10, 2020Observed: 20.64 ft at 10:15AM Aug 10, 2020Observed: 20.68 ft at 10:30AM Aug 10, 2020Observed: 20.68 ft at 10:45AM Aug 10, 2020Observed: 20.7 ft at 11:00AM Aug 10, 2020Observed: 20.72 ft at 11:15AM Aug 10, 2020Observed: 20.71 ft at 11:30AM Aug 10, 2020Observed: 20.71 ft at 11:45AM Aug 10, 2020Observed: 20.72 ft at 12:00PM Aug 10, 2020Observed: 20.71 ft at 12:15PM Aug 10, 2020Observed: 20.73 ft at 12:30PM Aug 10, 2020Observed: 20.69 ft at 12:45PM Aug 10, 2020Observed: 20.7 ft at 1:00PM Aug 10, 2020Observed: 20.69 ft at 1:15PM Aug 10, 2020Observed: 20.68 ft at 1:30PM Aug 10, 2020Observed: 20.68 ft at 1:45PM Aug 10, 2020Observed: 20.67 ft at 2:00PM Aug 10, 2020Observed: 20.68 ft at 2:15PM Aug 10, 2020Observed: 20.68 ft at 2:30PM Aug 10, 2020Observed: 20.66 ft at 2:45PM Aug 10, 2020Observed: 20.68 ft at 3:00PM Aug 10, 2020Observed: 20.76 ft at 3:15PM Aug 10, 2020Highest Observation: 21.03 ft at 3:30PM Aug 10, 2020Observed: 20.74 ft at 3:45PM Aug 10, 2020Observed: 20.67 ft at 4:00PM Aug 10, 2020Observed: 20.62 ft at 4:15PM Aug 10, 2020Observed: 20.62 ft at 4:30PM Aug 10, 2020Observed: 20.66 ft at 4:45PM Aug 10, 2020Observed: 20.63 ft at 5:00PM Aug 10, 2020Observed: 20.65 ft at 5:15PM Aug 10, 2020Observed: 20.7 ft at 5:30PM Aug 10, 2020Observed: 20.71 ft at 5:45PM Aug 10, 2020Observed: 20.72 ft at 6:00PM Aug 10, 2020Observed: 20.71 ft at 6:15PM Aug 10, 2020Observed: 20.7 ft at 6:30PM Aug 10, 2020Observed: 20.7 ft at 6:45PM Aug 10, 2020Observed: 20.71 ft at 7:00PM Aug 10, 2020Observed: 20.71 ft at 7:15PM Aug 10, 2020Observed: 20.71 ft at 7:30PM Aug 10, 2020Observed: 20.7 ft at 7:45PM Aug 10, 2020Observed: 20.7 ft at 8:00PM Aug 10, 2020Observed: 20.73 ft at 8:15PM Aug 10, 2020Observed: 20.74 ft at 8:30PM Aug 10, 2020Observed: 20.74 ft at 8:45PM Aug 10, 2020Observed: 20.75 ft at 9:00PM Aug 10, 2020Observed: 20.77 ft at 9:15PM Aug 10, 2020Observed: 20.8 ft at 9:30PM Aug 10, 2020Observed: 20.8 ft at 9:45PM Aug 10, 2020Observed: 20.82 ft at 10:00PM Aug 10, 2020Observed: 20.83 ft at 10:15PM Aug 10, 2020Observed: 20.83 ft at 10:30PM Aug 10, 2020Observed: 20.85 ft at 10:45PM Aug 10, 2020Observed: 20.86 ft at 11:00PM Aug 10, 2020Observed: 20.86 ft at 11:15PM Aug 10, 2020Observed: 20.88 ft at 11:30PM Aug 10, 2020Observed: 20.88 ft at 11:45PM Aug 10, 2020Observed: 20.89 ft at 12:00AM Aug 11, 2020Observed: 20.89 ft at 12:15AM Aug 11, 2020Observed: 20.89 ft at 12:30AM Aug 11, 2020Observed: 20.91 ft at 12:45AM Aug 11, 2020Observed: 20.91 ft at 1:00AM Aug 11, 2020Observed: 20.91 ft at 1:15AM Aug 11, 2020Observed: 20.91 ft at 1:30AM Aug 11, 2020Observed: 20.91 ft at 1:45AM Aug 11, 2020Observed: 20.91 ft at 2:00AM Aug 11, 2020Observed: 20.9 ft at 2:15AM Aug 11, 2020Observed: 20.9 ft at 2:30AM Aug 11, 2020Observed: 20.86 ft at 2:45AM Aug 11, 2020Observed: 20.84 ft at 3:00AM Aug 11, 2020Observed: 20.82 ft at 3:15AM Aug 11, 2020Observed: 20.8 ft at 3:30AM Aug 11, 2020Observed: 20.78 ft at 3:45AM Aug 11, 2020Observed: 20.76 ft at 4:00AM Aug 11, 2020Observed: 20.75 ft at 4:15AM Aug 11, 2020Observed: 20.72 ft at 4:30AM Aug 11, 2020Observed: 20.7 ft at 4:45AM Aug 11, 2020Observed: 20.67 ft at 5:00AM Aug 11, 2020Observed: 20.64 ft at 5:15AM Aug 11, 2020Observed: 20.61 ft at 5:30AM Aug 11, 2020Observed: 20.6 ft at 5:45AM Aug 11, 2020Observed: 20.6 ft at 6:00AM Aug 11, 2020Observed: 20.59 ft at 6:15AM Aug 11, 2020Observed: 20.61 ft at 6:30AM Aug 11, 2020Observed: 20.62 ft at 6:45AM Aug 11, 2020Observed: 20.61 ft at 7:00AM Aug 11, 2020Observed: 20.6 ft at 7:15AM Aug 11, 2020Observed: 20.57 ft at 7:30AM Aug 11, 2020Observed: 20.55 ft at 7:45AM Aug 11, 2020Observed: 20.52 ft at 8:00AM Aug 11, 2020Observed: 20.48 ft at 8:15AM Aug 11, 2020Observed: 20.45 ft at 8:30AM Aug 11, 2020Observed: 20.44 ft at 8:45AM Aug 11, 2020Observed: 20.41 ft at 9:00AM Aug 11, 2020Observed: 20.39 ft at 9:15AM Aug 11, 2020Observed: 20.37 ft at 9:30AM Aug 11, 2020Observed: 20.34 ft at 9:45AM Aug 11, 2020Observed: 20.41 ft at 10:00AM Aug 11, 2020Observed: 20.4 ft at 10:15AM Aug 11, 2020Observed: 20.43 ft at 10:30AM Aug 11, 2020Observed: 20.45 ft at 10:45AM Aug 11, 2020Observed: 20.43 ft at 11:00AM Aug 11, 2020Observed: 20.42 ft at 11:15AM Aug 11, 2020Observed: 20.41 ft at 11:30AM Aug 11, 2020Observed: 20.4 ft at 11:45AM Aug 11, 2020Observed: 20.38 ft at 12:00PM Aug 11, 2020Observed: 20.37 ft at 12:15PM Aug 11, 2020Observed: 20.37 ft at 12:30PM Aug 11, 2020Observed: 20.36 ft at 12:45PM Aug 11, 2020Observed: 20.35 ft at 1:00PM Aug 11, 2020Observed: 20.34 ft at 1:15PM Aug 11, 2020Observed: 20.34 ft at 1:30PM Aug 11, 2020Observed: 20.33 ft at 1:45PM Aug 11, 2020Observed: 20.33 ft at 2:00PM Aug 11, 2020Observed: 20.32 ft at 2:15PM Aug 11, 2020Observed: 20.32 ft at 2:30PM Aug 11, 2020Observed: 20.31 ft at 2:45PM Aug 11, 2020Observed: 20.31 ft at 3:00PM Aug 11, 2020Observed: 20.3 ft at 3:15PM Aug 11, 2020Observed: 20.29 ft at 3:30PM Aug 11, 2020Observed: 20.32 ft at 3:45PM Aug 11, 2020Observed: 20.31 ft at 4:00PM Aug 11, 2020Observed: 20.31 ft at 4:15PM Aug 11, 2020Observed: 20.3 ft at 4:30PM Aug 11, 2020Observed: 20.32 ft at 4:45PM Aug 11, 2020Observed: 20.32 ft at 5:00PM Aug 11, 2020Observed: 20.29 ft at 5:15PM Aug 11, 2020Observed: 20.31 ft at 5:30PM Aug 11, 2020Observed: 20.31 ft at 5:45PM Aug 11, 2020Observed: 20.32 ft at 6:00PM Aug 11, 2020Observed: 20.36 ft at 6:15PM Aug 11, 2020Observed: 20.4 ft at 6:30PM Aug 11, 2020Observed: 20.4 ft at 6:45PM Aug 11, 2020Observed: 20.43 ft at 7:00PM Aug 11, 2020Observed: 20.47 ft at 7:15PM Aug 11, 2020Observed: 20.5 ft at 7:30PM Aug 11, 2020Observed: 20.5 ft at 7:45PM Aug 11, 2020Observed: 20.53 ft at 8:00PM Aug 11, 2020Observed: 20.54 ft at 8:15PM Aug 11, 2020Observed: 20.56 ft at 8:30PM Aug 11, 2020Observed: 20.57 ft at 8:45PM Aug 11, 2020Observed: 20.59 ft at 9:00PM Aug 11, 2020Observed: 20.59 ft at 9:15PM Aug 11, 2020Observed: 20.58 ft at 9:30PM Aug 11, 2020Observed: 20.59 ft at 9:45PM Aug 11, 2020Observed: 20.6 ft at 10:00PM Aug 11, 2020Observed: 20.6 ft at 10:15PM Aug 11, 2020Observed: 20.61 ft at 10:30PM Aug 11, 2020Observed: 20.63 ft at 10:45PM Aug 11, 2020Observed: 20.65 ft at 11:00PM Aug 11, 2020Observed: 20.64 ft at 11:15PM Aug 11, 2020Observed: 20.65 ft at 11:30PM Aug 11, 2020Observed: 20.65 ft at 11:45PM Aug 11, 2020Observed: 20.62 ft at 12:00AM Aug 12, 2020Observed: 20.62 ft at 12:15AM Aug 12, 2020Observed: 20.62 ft at 12:30AM Aug 12, 2020Observed: 20.6 ft at 12:45AM Aug 12, 2020Observed: 20.6 ft at 1:00AM Aug 12, 2020Observed: 20.61 ft at 1:15AM Aug 12, 2020Observed: 20.6 ft at 1:30AM Aug 12, 2020Observed: 20.6 ft at 1:45AM Aug 12, 2020Observed: 20.6 ft at 2:00AM Aug 12, 2020Observed: 20.6 ft at 2:15AM Aug 12, 2020Observed: 20.61 ft at 2:30AM Aug 12, 2020Observed: 20.6 ft at 2:45AM Aug 12, 2020Observed: 20.61 ft at 3:00AM Aug 12, 2020Observed: 20.61 ft at 3:15AM Aug 12, 2020Observed: 20.61 ft at 3:30AM Aug 12, 2020Observed: 20.61 ft at 3:45AM Aug 12, 2020Observed: 20.61 ft at 4:00AM Aug 12, 2020Observed: 20.61 ft at 4:15AM Aug 12, 2020Observed: 20.6 ft at 4:30AM Aug 12, 2020Observed: 20.61 ft at 4:45AM Aug 12, 2020Observed: 20.6 ft at 5:00AM Aug 12, 2020Observed: 20.61 ft at 5:15AM Aug 12, 2020Observed: 20.61 ft at 5:30AM Aug 12, 2020Observed: 20.6 ft at 5:45AM Aug 12, 2020Observed: 20.6 ft at 6:00AM Aug 12, 2020Observed: 20.6 ft at 6:15AM Aug 12, 2020Observed: 20.6 ft at 6:30AM Aug 12, 2020Observed: 20.6 ft at 6:45AM Aug 12, 2020Observed: 20.6 ft at 7:00AM Aug 12, 2020Observed: 20.6 ft at 7:15AM Aug 12, 2020Observed: 20.6 ft at 7:30AM Aug 12, 2020Observed: 20.6 ft at 7:45AM Aug 12, 2020Observed: 20.6 ft at 8:00AM Aug 12, 2020Observed: 20.6 ft at 8:15AM Aug 12, 2020Observed: 20.6 ft at 8:30AM Aug 12, 2020Observed: 20.61 ft at 8:45AM Aug 12, 2020Observed: 20.61 ft at 9:00AM Aug 12, 2020Observed: 20.61 ft at 9:15AM Aug 12, 2020Observed: 20.62 ft at 9:30AM Aug 12, 2020Observed: 20.61 ft at 9:45AM Aug 12, 2020Observed: 20.62 ft at 10:00AM Aug 12, 2020Observed: 20.62 ft at 10:15AM Aug 12, 2020Observed: 20.62 ft at 10:30AM Aug 12, 2020Observed: 20.62 ft at 10:45AM Aug 12, 2020Observed: 20.63 ft at 11:00AM Aug 12, 2020Observed: 20.62 ft at 11:15AM Aug 12, 2020Observed: 20.66 ft at 11:30AM Aug 12, 2020Observed: 20.63 ft at 11:45AM Aug 12, 2020Observed: 20.63 ft at 12:00PM Aug 12, 2020Observed: 20.62 ft at 12:15PM Aug 12, 2020Observed: 20.6 ft at 12:30PM Aug 12, 2020Observed: 20.59 ft at 12:45PM Aug 12, 2020Observed: 20.57 ft at 1:00PM Aug 12, 2020Observed: 20.58 ft at 1:15PM Aug 12, 2020Observed: 20.54 ft at 1:30PM Aug 12, 2020Observed: 20.56 ft at 1:45PM Aug 12, 2020Observed: 20.55 ft at 2:00PM Aug 12, 2020Observed: 20.54 ft at 2:15PM Aug 12, 2020Observed: 20.52 ft at 2:30PM Aug 12, 2020Observed: 20.53 ft at 2:45PM Aug 12, 2020Observed: 20.53 ft at 3:00PM Aug 12, 2020Observed: 20.51 ft at 3:15PM Aug 12, 2020Observed: 20.6 ft at 3:30PM Aug 12, 2020Observed: 20.53 ft at 3:45PM Aug 12, 2020Observed: 20.53 ft at 4:00PM Aug 12, 2020Observed: 20.53 ft at 4:15PM Aug 12, 2020Observed: 20.54 ft at 4:30PM Aug 12, 2020Observed: 20.54 ft at 4:45PM Aug 12, 2020Observed: 20.53 ft at 5:00PM Aug 12, 2020Observed: 20.54 ft at 5:15PM Aug 12, 2020Observed: 20.54 ft at 5:30PM Aug 12, 2020Observed: 20.54 ft at 5:45PM Aug 12, 2020Observed: 20.54 ft at 6:00PM Aug 12, 2020Observed: 20.55 ft at 6:15PM Aug 12, 2020Observed: 20.55 ft at 6:30PM Aug 12, 2020Observed: 20.55 ft at 6:45PM Aug 12, 2020Observed: 20.55 ft at 7:00PM Aug 12, 2020Observed: 20.54 ft at 7:15PM Aug 12, 2020Observed: 20.55 ft at 7:30PM Aug 12, 2020Observed: 20.55 ft at 7:45PM Aug 12, 2020Observed: 20.55 ft at 8:00PM Aug 12, 2020Observed: 20.56 ft at 8:15PM Aug 12, 2020Observed: 20.56 ft at 8:30PM Aug 12, 2020Observed: 20.57 ft at 8:45PM Aug 12, 2020Observed: 20.56 ft at 9:00PM Aug 12, 2020Observed: 20.57 ft at 9:15PM Aug 12, 2020Observed: 20.57 ft at 9:30PM Aug 12, 2020Observed: 20.58 ft at 9:45PM Aug 12, 2020Observed: 20.58 ft at 10:00PM Aug 12, 2020Observed: 20.58 ft at 10:15PM Aug 12, 2020Observed: 20.58 ft at 10:30PM Aug 12, 2020Observed: 20.58 ft at 10:45PM Aug 12, 2020Observed: 20.59 ft at 11:00PM Aug 12, 2020Observed: 20.59 ft at 11:15PM Aug 12, 2020Observed: 20.6 ft at 11:30PM Aug 12, 2020Observed: 20.6 ft at 11:45PM Aug 12, 2020Observed: 20.6 ft at 12:00AM Aug 13, 2020Observed: 20.61 ft at 12:15AM Aug 13, 2020Observed: 20.61 ft at 12:30AM Aug 13, 2020Observed: 20.61 ft at 12:45AM Aug 13, 2020Observed: 20.62 ft at 1:00AM Aug 13, 2020Observed: 20.62 ft at 1:15AM Aug 13, 2020Observed: 20.62 ft at 1:30AM Aug 13, 2020Observed: 20.62 ft at 1:45AM Aug 13, 2020Observed: 20.63 ft at 2:00AM Aug 13, 2020Observed: 20.63 ft at 2:15AM Aug 13, 2020Observed: 20.63 ft at 2:30AM Aug 13, 2020Observed: 20.63 ft at 2:45AM Aug 13, 2020Observed: 20.64 ft at 3:00AM Aug 13, 2020Observed: 20.64 ft at 3:15AM Aug 13, 2020Observed: 20.65 ft at 3:30AM Aug 13, 2020Observed: 20.65 ft at 3:45AM Aug 13, 2020Observed: 20.65 ft at 4:00AM Aug 13, 2020Observed: 20.65 ft at 4:15AM Aug 13, 2020Observed: 20.66 ft at 4:30AM Aug 13, 2020Observed: 20.66 ft at 4:45AM Aug 13, 2020Observed: 20.66 ft at 5:00AM Aug 13, 2020Observed: 20.67 ft at 5:15AM Aug 13, 2020Observed: 20.67 ft at 5:30AM Aug 13, 2020Observed: 20.67 ft at 5:45AM Aug 13, 2020Observed: 20.67 ft at 6:00AM Aug 13, 2020Observed: 20.67 ft at 6:15AM Aug 13, 2020Observed: 20.68 ft at 6:30AM Aug 13, 2020Observed: 20.68 ft at 6:45AM Aug 13, 2020Observed: 20.68 ft at 7:00AM Aug 13, 2020Observed: 20.71 ft at 7:15AM Aug 13, 2020Observed: 20.71 ft at 7:30AM Aug 13, 2020Observed: 20.71 ft at 7:45AM Aug 13, 2020Observed: 20.72 ft at 8:00AM Aug 13, 2020Observed: 20.72 ft at 8:15AM Aug 13, 2020Observed: 20.73 ft at 8:30AM Aug 13, 2020Observed: 20.74 ft at 8:45AM Aug 13, 2020Observed: 20.74 ft at 9:00AM Aug 13, 2020Observed: 20.74 ft at 9:15AM Aug 13, 2020Observed: 20.73 ft at 9:30AM Aug 13, 2020Observed: 20.72 ft at 9:45AM Aug 13, 2020Observed: 20.72 ft at 10:00AM Aug 13, 2020Observed: 20.72 ft at 10:15AM Aug 13, 2020Observed: 20.72 ft at 10:30AM Aug 13, 2020Observed: 20.72 ft at 10:45AM Aug 13, 2020Observed: 20.72 ft at 11:00AM Aug 13, 2020Observed: 20.71 ft at 11:15AM Aug 13, 2020Observed: 20.71 ft at 11:30AM Aug 13, 2020Observed: 20.72 ft at 11:45AM Aug 13, 2020Observed: 20.74 ft at 1:00PM Aug 13, 2020Observed: 20.72 ft at 1:15PM Aug 13, 2020Observed: 20.71 ft at 1:30PM Aug 13, 2020Observed: 20.71 ft at 1:45PM Aug 13, 2020Observed: 20.71 ft at 2:00PM Aug 13, 2020Observed: 20.75 ft at 2:15PM Aug 13, 2020Observed: 20.7 ft at 2:30PM Aug 13, 2020Observed: 20.72 ft at 2:45PM Aug 13, 2020Observed: 20.7 ft at 3:00PM Aug 13, 2020Observed: 20.69 ft at 3:15PM Aug 13, 2020Observed: 20.69 ft at 3:30PM Aug 13, 2020Observed: 20.68 ft at 3:45PM Aug 13, 2020Observed: 20.67 ft at 4:00PM Aug 13, 2020Observed: 20.69 ft at 4:15PM Aug 13, 2020Observed: 20.68 ft at 4:30PM Aug 13, 2020Observed: 20.67 ft at 4:45PM Aug 13, 2020Observed: 20.67 ft at 5:00PM Aug 13, 2020Observed: 20.66 ft at 5:15PM Aug 13, 2020Observed: 20.65 ft at 5:30PM Aug 13, 2020Observed: 20.64 ft at 5:45PM Aug 13, 2020Observed: 20.64 ft at 6:00PM Aug 13, 2020Observed: 20.63 ft at 6:15PM Aug 13, 2020Observed: 20.62 ft at 6:30PM Aug 13, 2020Observed: 20.61 ft at 6:45PM Aug 13, 2020Observed: 20.59 ft at 7:00PM Aug 13, 2020Observed: 20.57 ft at 7:15PM Aug 13, 2020Observed: 20.57 ft at 7:30PM Aug 13, 2020Observed: 20.57 ft at 7:45PM Aug 13, 2020Observed: 20.54 ft at 8:00PM Aug 13, 2020Observed: 20.53 ft at 8:15PM Aug 13, 2020Observed: 20.48 ft at 8:30PM Aug 13, 2020Observed: 20.51 ft at 8:45PM Aug 13, 2020Observed: 20.5 ft at 9:00PM Aug 13, 2020Observed: 20.49 ft at 9:15PM Aug 13, 2020Observed: 20.48 ft at 9:30PM Aug 13, 2020Observed: 20.48 ft at 9:45PM Aug 13, 2020Observed: 20.46 ft at 10:00PM Aug 13, 2020Observed: 20.44 ft at 10:15PM Aug 13, 2020Observed: 20.43 ft at 10:30PM Aug 13, 2020Observed: 20.41 ft at 10:45PM Aug 13, 2020Observed: 20.39 ft at 11:00PM Aug 13, 2020Observed: 20.37 ft at 11:15PM Aug 13, 2020Observed: 20.39 ft at 11:30PM Aug 13, 2020Observed: 20.4 ft at 11:45PM Aug 13, 2020Observed: 20.4 ft at 12:00AM Aug 14, 2020Observed: 20.42 ft at 12:15AM Aug 14, 2020Observed: 20.41 ft at 12:30AM Aug 14, 2020Observed: 20.4 ft at 12:45AM Aug 14, 2020Observed: 20.42 ft at 1:00AM Aug 14, 2020Observed: 20.42 ft at 1:15AM Aug 14, 2020Observed: 20.41 ft at 1:30AM Aug 14, 2020Observed: 20.4 ft at 1:45AM Aug 14, 2020Observed: 20.4 ft at 2:00AM Aug 14, 2020Observed: 20.39 ft at 2:15AM Aug 14, 2020Observed: 20.37 ft at 2:30AM Aug 14, 2020Observed: 20.36 ft at 2:45AM Aug 14, 2020Observed: 20.35 ft at 3:00AM Aug 14, 2020Observed: 20.34 ft at 3:15AM Aug 14, 2020Observed: 20.34 ft at 3:30AM Aug 14, 2020Observed: 20.33 ft at 3:45AM Aug 14, 2020Observed: 20.31 ft at 4:00AM Aug 14, 2020Observed: 20.3 ft at 4:15AM Aug 14, 2020Observed: 20.3 ft at 4:30AM Aug 14, 2020Observed: 20.29 ft at 4:45AM Aug 14, 2020Observed: 20.29 ft at 5:00AM Aug 14, 2020Observed: 20.28 ft at 5:15AM Aug 14, 2020Observed: 20.27 ft at 5:30AM Aug 14, 2020Observed: 20.31 ft at 5:45AM Aug 14, 2020Observed: 20.33 ft at 6:00AM Aug 14, 2020Observed: 20.36 ft at 6:15AM Aug 14, 2020Observed: 20.38 ft at 6:30AM Aug 14, 2020Observed: 20.38 ft at 6:45AM Aug 14, 2020Observed: 20.38 ft at 7:00AM Aug 14, 2020Observed: 20.4 ft at 7:15AM Aug 14, 2020Observed: 20.4 ft at 7:30AM Aug 14, 2020Observed: 20.41 ft at 7:45AM Aug 14, 2020Observed: 20.42 ft at 8:00AM Aug 14, 2020Observed: 20.43 ft at 8:15AM Aug 14, 2020Observed: 20.44 ft at 8:30AM Aug 14, 2020Observed: 20.44 ft at 8:45AM Aug 14, 2020Observed: 20.45 ft at 9:00AM Aug 14, 2020Observed: 20.46 ft at 9:15AM Aug 14, 2020Observed: 20.48 ft at 9:30AM Aug 14, 2020Observed: 20.49 ft at 9:45AM Aug 14, 2020Observed: 20.51 ft at 10:00AM Aug 14, 2020Observed: 20.53 ft at 10:15AM Aug 14, 2020Observed: 20.55 ft at 10:30AM Aug 14, 2020Observed: 20.56 ft at 10:45AM Aug 14, 2020Observed: 20.58 ft at 11:00AM Aug 14, 2020Observed: 20.6 ft at 11:15AM Aug 14, 2020Observed: 20.57 ft at 11:30AM Aug 14, 2020Observed: 20.6 ft at 11:45AM Aug 14, 2020Observed: 20.58 ft at 12:00PM Aug 14, 2020Observed: 20.57 ft at 12:15PM Aug 14, 2020Observed: 20.54 ft at 12:30PM Aug 14, 2020Observed: 20.56 ft at 12:45PM Aug 14, 2020Observed: 20.57 ft at 1:00PM Aug 14, 2020Observed: 20.58 ft at 1:15PM Aug 14, 2020Observed: 20.61 ft at 1:30PM Aug 14, 2020Observed: 20.59 ft at 1:45PM Aug 14, 2020Observed: 20.61 ft at 2:00PM Aug 14, 2020Observed: 20.59 ft at 2:15PM Aug 14, 2020Observed: 20.61 ft at 2:30PM Aug 14, 2020Observed: 20.6 ft at 2:45PM Aug 14, 2020Observed: 20.62 ft at 3:00PM Aug 14, 2020Observed: 20.62 ft at 3:15PM Aug 14, 2020Observed: 20.59 ft at 3:30PM Aug 14, 2020Observed: 20.6 ft at 3:45PM Aug 14, 2020Observed: 20.6 ft at 4:00PM Aug 14, 2020Observed: 20.61 ft at 4:15PM Aug 14, 2020Observed: 20.63 ft at 4:30PM Aug 14, 2020Observed: 20.62 ft at 4:45PM Aug 14, 2020Observed: 20.6 ft at 5:00PM Aug 14, 2020Observed: 20.62 ft at 5:15PM Aug 14, 2020Observed: 20.62 ft at 5:30PM Aug 14, 2020Observed: 20.65 ft at 5:45PM Aug 14, 2020Observed: 20.62 ft at 6:00PM Aug 14, 2020Observed: 20.65 ft at 6:15PM Aug 14, 2020Observed: 20.64 ft at 6:30PM Aug 14, 2020Observed: 20.63 ft at 6:45PM Aug 14, 2020Observed: 20.62 ft at 7:00PM Aug 14, 2020Observed: 20.63 ft at 7:15PM Aug 14, 2020Observed: 20.6 ft at 7:30PM Aug 14, 2020Observed: 20.62 ft at 7:45PM Aug 14, 2020Observed: 20.64 ft at 8:00PM Aug 14, 2020Observed: 20.64 ft at 8:15PM Aug 14, 2020Observed: 20.63 ft at 8:30PM Aug 14, 2020Observed: 20.64 ft at 8:45PM Aug 14, 2020Observed: 20.64 ft at 9:00PM Aug 14, 2020Observed: 20.64 ft at 9:15PM Aug 14, 2020Observed: 20.64 ft at 9:30PM Aug 14, 2020Observed: 20.64 ft at 9:45PM Aug 14, 2020Observed: 20.64 ft at 10:00PM Aug 14, 2020Observed: 20.65 ft at 10:15PM Aug 14, 2020Observed: 20.65 ft at 10:30PM Aug 14, 2020Observed: 20.65 ft at 10:45PM Aug 14, 2020Observed: 20.66 ft at 11:00PM Aug 14, 2020Observed: 20.66 ft at 11:15PM Aug 14, 2020Observed: 20.66 ft at 11:30PM Aug 14, 2020Observed: 20.67 ft at 11:45PM Aug 14, 2020Observed: 20.67 ft at 12:00AM Aug 15, 2020Observed: 20.68 ft at 12:15AM Aug 15, 2020Observed: 20.68 ft at 12:30AM Aug 15, 2020Observed: 20.68 ft at 12:45AM Aug 15, 2020Observed: 20.68 ft at 1:00AM Aug 15, 2020Observed: 20.69 ft at 1:15AM Aug 15, 2020Observed: 20.69 ft at 1:30AM Aug 15, 2020Observed: 20.69 ft at 1:45AM Aug 15, 2020Observed: 20.7 ft at 2:00AM Aug 15, 2020Observed: 20.7 ft at 2:15AM Aug 15, 2020Observed: 20.7 ft at 2:30AM Aug 15, 2020Observed: 20.7 ft at 2:45AM Aug 15, 2020Observed: 20.7 ft at 3:00AM Aug 15, 2020Observed: 20.7 ft at 3:15AM Aug 15, 2020Observed: 20.71 ft at 3:30AM Aug 15, 2020Observed: 20.71 ft at 3:45AM Aug 15, 2020Observed: 20.71 ft at 4:00AM Aug 15, 2020Observed: 20.71 ft at 4:15AM Aug 15, 2020Observed: 20.72 ft at 4:30AM Aug 15, 2020Observed: 20.72 ft at 4:45AM Aug 15, 2020Observed: 20.73 ft at 5:00AM Aug 15, 2020Observed: 20.73 ft at 5:15AM Aug 15, 2020Observed: 20.74 ft at 5:30AM Aug 15, 2020Observed: 20.74 ft at 5:45AM Aug 15, 2020Observed: 20.74 ft at 6:00AM Aug 15, 2020Observed: 20.74 ft at 6:15AM Aug 15, 2020Observed: 20.74 ft at 6:30AM Aug 15, 2020Observed: 20.74 ft at 6:45AM Aug 15, 2020Observed: 20.73 ft at 7:00AM Aug 15, 2020Observed: 20.74 ft at 7:15AM Aug 15, 2020Observed: 20.75 ft at 7:30AM Aug 15, 2020Observed: 20.75 ft at 7:45AM Aug 15, 2020Observed: 20.77 ft at 8:00AM Aug 15, 2020Observed: 20.78 ft at 8:15AM Aug 15, 2020Observed: 20.79 ft at 8:30AM Aug 15, 2020Observed: 20.81 ft at 8:45AM Aug 15, 2020Observed: 20.78 ft at 9:00AM Aug 15, 2020Observed: 20.78 ft at 9:15AM Aug 15, 2020Observed: 20.77 ft at 9:30AM Aug 15, 2020Observed: 20.76 ft at 9:45AM Aug 15, 2020Observed: 20.76 ft at 10:00AM Aug 15, 2020Observed: 20.75 ft at 10:15AM Aug 15, 2020Observed: 20.73 ft at 10:30AM Aug 15, 2020Observed: 20.74 ft at 10:45AM Aug 15, 2020Observed: 20.67 ft at 11:00AM Aug 15, 2020Observed: 20.73 ft at 11:15AM Aug 15, 2020Observed: 20.71 ft at 11:30AM Aug 15, 2020Observed: 20.72 ft at 11:45AM Aug 15, 2020Observed: 20.72 ft at 12:00PM Aug 15, 2020Observed: 20.72 ft at 12:15PM Aug 15, 2020Observed: 20.7 ft at 12:30PM Aug 15, 2020Observed: 20.7 ft at 12:45PM Aug 15, 2020Observed: 20.69 ft at 1:00PM Aug 15, 2020Observed: 20.7 ft at 1:15PM Aug 15, 2020Observed: 20.69 ft at 1:30PM Aug 15, 2020Observed: 20.68 ft at 1:45PM Aug 15, 2020USGS--Water Resources of the United StatesSNAI2(plotting HGIRG) Graph Created (2:09PM Aug 15, 2020)ObservedLatest observed value: 20.68 ft at 1:45 PM CDT 15-Aug-2020.
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Illinois River at Seneca. During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 26
Low Stage (in feet): -9999

Historic Crests
(1) 32.16 ft on 05/02/2019
(2) 30.78 ft on 02/21/2018
(3) 27.36 ft on 05/02/2017

(P): Preliminary values subject to further review.

Recent Crests
(1) 32.16 ft on 05/02/2019
(2) 30.78 ft on 02/21/2018
(3) 27.36 ft on 05/02/2017

(P): Preliminary values subject to further review.

Low Water Records
(1) 18.99 ft on 12/02/2018
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
If you notice any errors in the below information, please contact our Webmaster
36 Backwater causes Rat Run to threatened Main Street in Seneca.
35.5 A few residences threatened near River Road and IL-170 in Seneca.
35 River Road is threatened near IL-170 in Seneca.
33.5 Industrial structures are threatened along the river west of Seneca.
33 Backwater causes Rat Run to threatened a few structures near Main Street in Seneca.
32 IL-36 (Dupont Road) is threatened along the river near Seneca.
31.5 Old Stage Road is threatened just east of Seneca.
31 Backwater causes Rat Run to overtop its banks near Main Street in Seneca.
28 Old Stage Road is threatened near the Illinois and Michigan Canal between Seneca and Morris. Agricultral land is inundated north of the river near Seneca.
27 Roadways at numerous marinas threatened along the river near Seneca.
25 Water overtops low-lying banks in Seneca.
About This Location Collapse

Latitude: 41.299722° N, Longitude: 88.614167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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