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  NOTICE:There is a service interruption for a number of stream gauges nationwide due to the Global Positioning System (GPS) Rollover that occurred on April 6 at 23:59 GMT. The National Weather Service is working with federal, state, and local partners to ensure those affected gauges obtain the necessary updates to resume data transmission. We apologize for the service interruption and hope to have the data restored as soon as possible.

Hydrograph River at a Glance Download
Illinois River at Seneca Stage (ft)Observed: 22.74 ft at 2:45PM Apr 16, 2019Observed: 22.74 ft at 3:00PM Apr 16, 2019Observed: 22.73 ft at 3:15PM Apr 16, 2019Observed: 22.72 ft at 3:30PM Apr 16, 2019Observed: 22.72 ft at 3:45PM Apr 16, 2019Observed: 22.74 ft at 4:00PM Apr 16, 2019Observed: 22.7 ft at 4:15PM Apr 16, 2019Observed: 22.72 ft at 4:30PM Apr 16, 2019Observed: 22.72 ft at 4:45PM Apr 16, 2019Observed: 22.69 ft at 5:00PM Apr 16, 2019Observed: 22.68 ft at 5:15PM Apr 16, 2019Observed: 22.68 ft at 5:30PM Apr 16, 2019Observed: 22.68 ft at 5:45PM Apr 16, 2019Observed: 22.71 ft at 6:00PM Apr 16, 2019Observed: 22.69 ft at 6:15PM Apr 16, 2019Observed: 22.74 ft at 6:30PM Apr 16, 2019Observed: 22.78 ft at 6:45PM Apr 16, 2019Observed: 22.77 ft at 7:00PM Apr 16, 2019Observed: 22.78 ft at 7:15PM Apr 16, 2019Observed: 22.79 ft at 7:30PM Apr 16, 2019Observed: 22.8 ft at 7:45PM Apr 16, 2019Observed: 22.78 ft at 8:00PM Apr 16, 2019Highest Observation: 22.83 ft at 8:15PM Apr 16, 2019Observed: 22.75 ft at 8:30PM Apr 16, 2019Observed: 22.79 ft at 8:45PM Apr 16, 2019Observed: 22.71 ft at 9:00PM Apr 16, 2019Observed: 22.67 ft at 9:15PM Apr 16, 2019Observed: 22.7 ft at 9:30PM Apr 16, 2019Observed: 22.67 ft at 9:45PM Apr 16, 2019Observed: 22.65 ft at 10:00PM Apr 16, 2019Observed: 22.65 ft at 10:15PM Apr 16, 2019Observed: 22.64 ft at 10:30PM Apr 16, 2019Observed: 22.62 ft at 10:45PM Apr 16, 2019Observed: 22.62 ft at 11:00PM Apr 16, 2019Observed: 22.64 ft at 11:15PM Apr 16, 2019Observed: 22.63 ft at 11:30PM Apr 16, 2019Observed: 22.62 ft at 11:45PM Apr 16, 2019Observed: 22.62 ft at 12:00AM Apr 17, 2019Observed: 22.65 ft at 12:15AM Apr 17, 2019Observed: 22.63 ft at 12:30AM Apr 17, 2019Observed: 22.64 ft at 12:45AM Apr 17, 2019Observed: 22.65 ft at 1:00AM Apr 17, 2019Observed: 22.64 ft at 1:15AM Apr 17, 2019Observed: 22.66 ft at 1:30AM Apr 17, 2019Observed: 22.65 ft at 1:45AM Apr 17, 2019Observed: 22.65 ft at 2:00AM Apr 17, 2019Observed: 22.64 ft at 2:15AM Apr 17, 2019Observed: 22.64 ft at 2:30AM Apr 17, 2019Observed: 22.64 ft at 2:45AM Apr 17, 2019Observed: 22.63 ft at 3:00AM Apr 17, 2019Observed: 22.62 ft at 3:15AM Apr 17, 2019Observed: 22.62 ft at 3:30AM Apr 17, 2019Observed: 22.63 ft at 3:45AM Apr 17, 2019Observed: 22.61 ft at 4:00AM Apr 17, 2019Observed: 22.57 ft at 4:15AM Apr 17, 2019Observed: 22.58 ft at 4:30AM Apr 17, 2019Observed: 22.59 ft at 4:45AM Apr 17, 2019Observed: 22.59 ft at 5:00AM Apr 17, 2019Observed: 22.58 ft at 5:15AM Apr 17, 2019Observed: 22.58 ft at 5:30AM Apr 17, 2019Observed: 22.6 ft at 5:45AM Apr 17, 2019Observed: 22.58 ft at 6:00AM Apr 17, 2019Observed: 22.59 ft at 6:15AM Apr 17, 2019Observed: 22.6 ft at 6:30AM Apr 17, 2019Observed: 22.6 ft at 6:45AM Apr 17, 2019Observed: 22.61 ft at 7:00AM Apr 17, 2019Observed: 22.6 ft at 7:15AM Apr 17, 2019Observed: 22.59 ft at 7:30AM Apr 17, 2019Observed: 22.6 ft at 7:45AM Apr 17, 2019Observed: 22.57 ft at 8:00AM Apr 17, 2019Observed: 22.55 ft at 8:15AM Apr 17, 2019Observed: 22.62 ft at 8:30AM Apr 17, 2019Observed: 22.59 ft at 8:45AM Apr 17, 2019Observed: 22.56 ft at 9:00AM Apr 17, 2019Observed: 22.53 ft at 9:15AM Apr 17, 2019Observed: 22.59 ft at 9:30AM Apr 17, 2019Observed: 22.58 ft at 9:45AM Apr 17, 2019Observed: 22.52 ft at 10:00AM Apr 17, 2019Observed: 22.55 ft at 10:15AM Apr 17, 2019Observed: 22.49 ft at 10:30AM Apr 17, 2019Observed: 22.49 ft at 10:45AM Apr 17, 2019Observed: 22.49 ft at 11:00AM Apr 17, 2019Observed: 22.46 ft at 11:15AM Apr 17, 2019Observed: 22.52 ft at 11:30AM Apr 17, 2019Observed: 22.53 ft at 11:45AM Apr 17, 2019Observed: 22.48 ft at 12:00PM Apr 17, 2019Observed: 22.48 ft at 12:15PM Apr 17, 2019Observed: 22.5 ft at 12:30PM Apr 17, 2019Observed: 22.52 ft at 12:45PM Apr 17, 2019Observed: 22.45 ft at 1:00PM Apr 17, 2019Observed: 22.5 ft at 1:15PM Apr 17, 2019Observed: 22.46 ft at 1:30PM Apr 17, 2019Observed: 22.44 ft at 1:45PM Apr 17, 2019Observed: 22.5 ft at 2:00PM Apr 17, 2019Observed: 22.54 ft at 2:15PM Apr 17, 2019Observed: 22.54 ft at 2:30PM Apr 17, 2019Observed: 22.49 ft at 2:45PM Apr 17, 2019Observed: 22.53 ft at 3:00PM Apr 17, 2019Observed: 22.57 ft at 3:15PM Apr 17, 2019Observed: 22.51 ft at 3:30PM Apr 17, 2019Observed: 22.46 ft at 3:45PM Apr 17, 2019Observed: 22.52 ft at 4:00PM Apr 17, 2019Observed: 22.51 ft at 4:15PM Apr 17, 2019Observed: 22.57 ft at 4:30PM Apr 17, 2019Observed: 22.56 ft at 4:45PM Apr 17, 2019Observed: 22.62 ft at 5:00PM Apr 17, 2019Observed: 22.45 ft at 5:15PM Apr 17, 2019Observed: 22.46 ft at 5:30PM Apr 17, 2019Observed: 22.42 ft at 5:45PM Apr 17, 2019Observed: 22.46 ft at 6:00PM Apr 17, 2019Observed: 22.43 ft at 6:15PM Apr 17, 2019Observed: 22.44 ft at 6:30PM Apr 17, 2019Observed: 22.43 ft at 6:45PM Apr 17, 2019Observed: 22.41 ft at 7:00PM Apr 17, 2019Observed: 22.4 ft at 7:15PM Apr 17, 2019Observed: 22.43 ft at 7:30PM Apr 17, 2019Observed: 22.41 ft at 7:45PM Apr 17, 2019Observed: 22.4 ft at 8:00PM Apr 17, 2019Observed: 22.41 ft at 8:15PM Apr 17, 2019Observed: 22.47 ft at 8:30PM Apr 17, 2019Observed: 22.48 ft at 8:45PM Apr 17, 2019Observed: 22.43 ft at 9:00PM Apr 17, 2019Observed: 22.45 ft at 9:15PM Apr 17, 2019Observed: 22.36 ft at 9:30PM Apr 17, 2019Observed: 22.37 ft at 9:45PM Apr 17, 2019Observed: 22.38 ft at 10:00PM Apr 17, 2019Observed: 22.39 ft at 10:15PM Apr 17, 2019Observed: 22.35 ft at 10:30PM Apr 17, 2019Observed: 22.32 ft at 10:45PM Apr 17, 2019Observed: 22.36 ft at 11:00PM Apr 17, 2019Observed: 22.39 ft at 11:15PM Apr 17, 2019Observed: 22.41 ft at 11:30PM Apr 17, 2019Observed: 22.38 ft at 11:45PM Apr 17, 2019Observed: 22.42 ft at 12:00AM Apr 18, 2019Observed: 22.41 ft at 12:15AM Apr 18, 2019Observed: 22.42 ft at 12:30AM Apr 18, 2019Observed: 22.34 ft at 12:45AM Apr 18, 2019Observed: 22.38 ft at 1:00AM Apr 18, 2019Observed: 22.36 ft at 1:15AM Apr 18, 2019Observed: 22.37 ft at 1:30AM Apr 18, 2019Observed: 22.37 ft at 1:45AM Apr 18, 2019Observed: 22.37 ft at 2:00AM Apr 18, 2019Observed: 22.34 ft at 2:15AM Apr 18, 2019Observed: 22.34 ft at 2:30AM Apr 18, 2019Observed: 22.34 ft at 2:45AM Apr 18, 2019Observed: 22.33 ft at 3:00AM Apr 18, 2019Observed: 22.3 ft at 3:15AM Apr 18, 2019Observed: 22.34 ft at 3:30AM Apr 18, 2019Observed: 22.39 ft at 3:45AM Apr 18, 2019Observed: 22.39 ft at 4:00AM Apr 18, 2019Observed: 22.39 ft at 4:15AM Apr 18, 2019Observed: 22.37 ft at 4:30AM Apr 18, 2019Observed: 22.38 ft at 4:45AM Apr 18, 2019Observed: 22.38 ft at 5:00AM Apr 18, 2019Observed: 22.35 ft at 5:15AM Apr 18, 2019Observed: 22.36 ft at 5:30AM Apr 18, 2019Observed: 22.35 ft at 5:45AM Apr 18, 2019Observed: 22.36 ft at 6:00AM Apr 18, 2019Observed: 22.35 ft at 6:15AM Apr 18, 2019Observed: 22.36 ft at 6:30AM Apr 18, 2019Observed: 22.37 ft at 6:45AM Apr 18, 2019Observed: 22.35 ft at 7:00AM Apr 18, 2019Observed: 22.35 ft at 7:15AM Apr 18, 2019Observed: 22.36 ft at 7:30AM Apr 18, 2019Observed: 22.35 ft at 7:45AM Apr 18, 2019Observed: 22.34 ft at 8:00AM Apr 18, 2019Observed: 22.33 ft at 8:15AM Apr 18, 2019Observed: 22.29 ft at 8:30AM Apr 18, 2019Observed: 22.3 ft at 8:45AM Apr 18, 2019Observed: 22.34 ft at 9:00AM Apr 18, 2019Observed: 22.33 ft at 9:15AM Apr 18, 2019Observed: 22.31 ft at 9:30AM Apr 18, 2019Observed: 22.32 ft at 9:45AM Apr 18, 2019Observed: 22.32 ft at 10:00AM Apr 18, 2019Observed: 22.31 ft at 10:15AM Apr 18, 2019Observed: 22.32 ft at 10:30AM Apr 18, 2019Observed: 22.33 ft at 10:45AM Apr 18, 2019Observed: 22.32 ft at 11:00AM Apr 18, 2019Observed: 22.32 ft at 11:15AM Apr 18, 2019Observed: 22.31 ft at 11:30AM Apr 18, 2019Observed: 22.33 ft at 11:45AM Apr 18, 2019Observed: 22.34 ft at 12:00PM Apr 18, 2019Observed: 22.32 ft at 12:15PM Apr 18, 2019Observed: 22.33 ft at 12:30PM Apr 18, 2019Observed: 22.33 ft at 12:45PM Apr 18, 2019Observed: 22.32 ft at 1:00PM Apr 18, 2019Observed: 22.33 ft at 1:15PM Apr 18, 2019Observed: 22.32 ft at 1:30PM Apr 18, 2019Observed: 22.32 ft at 1:45PM Apr 18, 2019Observed: 22.33 ft at 2:00PM Apr 18, 2019Observed: 22.34 ft at 2:15PM Apr 18, 2019Observed: 22.34 ft at 2:30PM Apr 18, 2019Observed: 22.34 ft at 2:45PM Apr 18, 2019Observed: 22.33 ft at 3:00PM Apr 18, 2019Observed: 22.34 ft at 3:15PM Apr 18, 2019Observed: 22.35 ft at 3:30PM Apr 18, 2019Observed: 22.36 ft at 3:45PM Apr 18, 2019Observed: 22.29 ft at 4:00PM Apr 18, 2019Observed: 22.3 ft at 4:15PM Apr 18, 2019Observed: 22.33 ft at 4:30PM Apr 18, 2019Observed: 22.35 ft at 4:45PM Apr 18, 2019Observed: 22.35 ft at 5:00PM Apr 18, 2019Observed: 22.32 ft at 5:15PM Apr 18, 2019Observed: 22.34 ft at 5:30PM Apr 18, 2019Observed: 22.37 ft at 5:45PM Apr 18, 2019Observed: 22.36 ft at 6:00PM Apr 18, 2019Observed: 22.34 ft at 6:15PM Apr 18, 2019Observed: 22.32 ft at 6:30PM Apr 18, 2019Observed: 22.35 ft at 6:45PM Apr 18, 2019Observed: 22.37 ft at 7:00PM Apr 18, 2019Observed: 22.38 ft at 7:15PM Apr 18, 2019Observed: 22.4 ft at 7:30PM Apr 18, 2019Observed: 22.38 ft at 7:45PM Apr 18, 2019Observed: 22.43 ft at 8:00PM Apr 18, 2019Observed: 22.45 ft at 8:15PM Apr 18, 2019Observed: 22.47 ft at 8:30PM Apr 18, 2019Observed: 22.49 ft at 8:45PM Apr 18, 2019Observed: 22.27 ft at 9:00PM Apr 18, 2019Observed: 22.47 ft at 9:15PM Apr 18, 2019Observed: 22.5 ft at 9:30PM Apr 18, 2019Observed: 22.51 ft at 9:45PM Apr 18, 2019Observed: 22.48 ft at 10:00PM Apr 18, 2019Observed: 22.53 ft at 10:15PM Apr 18, 2019Observed: 22.55 ft at 10:30PM Apr 18, 2019Observed: 22.54 ft at 10:45PM Apr 18, 2019Observed: 22.54 ft at 11:00PM Apr 18, 2019Observed: 22.6 ft at 11:15PM Apr 18, 2019Observed: 22.54 ft at 11:30PM Apr 18, 2019Observed: 22.56 ft at 11:45PM Apr 18, 2019Observed: 22.45 ft at 12:00AM Apr 19, 2019Observed: 22.46 ft at 12:15AM Apr 19, 2019Observed: 22.57 ft at 12:30AM Apr 19, 2019Observed: 22.55 ft at 12:45AM Apr 19, 2019Observed: 22.57 ft at 1:00AM Apr 19, 2019Observed: 22.57 ft at 1:15AM Apr 19, 2019Observed: 22.59 ft at 1:30AM Apr 19, 2019Observed: 22.62 ft at 1:45AM Apr 19, 2019Observed: 22.63 ft at 2:00AM Apr 19, 2019Observed: 22.62 ft at 2:15AM Apr 19, 2019Observed: 22.63 ft at 2:30AM Apr 19, 2019Observed: 22.63 ft at 2:45AM Apr 19, 2019Observed: 22.64 ft at 3:00AM Apr 19, 2019Observed: 22.65 ft at 3:15AM Apr 19, 2019Observed: 22.67 ft at 3:30AM Apr 19, 2019Observed: 22.69 ft at 3:45AM Apr 19, 2019Observed: 22.73 ft at 4:00AM Apr 19, 2019Observed: 22.73 ft at 4:15AM Apr 19, 2019Observed: 22.71 ft at 4:30AM Apr 19, 2019Observed: 22.7 ft at 4:45AM Apr 19, 2019Observed: 22.7 ft at 5:00AM Apr 19, 2019Observed: 22.68 ft at 5:15AM Apr 19, 2019Observed: 22.67 ft at 5:30AM Apr 19, 2019Observed: 22.69 ft at 5:45AM Apr 19, 2019Observed: 22.7 ft at 6:00AM Apr 19, 2019Observed: 22.66 ft at 6:15AM Apr 19, 2019Observed: 22.65 ft at 6:30AM Apr 19, 2019Observed: 22.67 ft at 6:45AM Apr 19, 2019Observed: 22.69 ft at 7:00AM Apr 19, 2019Observed: 22.64 ft at 7:15AM Apr 19, 2019Observed: 22.64 ft at 7:30AM Apr 19, 2019Observed: 22.67 ft at 7:45AM Apr 19, 2019Observed: 22.67 ft at 8:00AM Apr 19, 2019Observed: 22.66 ft at 8:15AM Apr 19, 2019Observed: 22.66 ft at 8:30AM Apr 19, 2019Observed: 22.64 ft at 8:45AM Apr 19, 2019Observed: 22.67 ft at 9:00AM Apr 19, 2019Observed: 22.66 ft at 9:15AM Apr 19, 2019Observed: 22.63 ft at 9:30AM Apr 19, 2019Observed: 22.64 ft at 9:45AM Apr 19, 2019Observed: 22.66 ft at 10:00AM Apr 19, 2019Observed: 22.65 ft at 10:15AM Apr 19, 2019Observed: 22.68 ft at 10:30AM Apr 19, 2019Observed: 22.7 ft at 10:45AM Apr 19, 2019Observed: 22.7 ft at 11:00AM Apr 19, 2019Observed: 22.73 ft at 11:15AM Apr 19, 2019Observed: 22.66 ft at 11:30AM Apr 19, 2019Observed: 22.67 ft at 11:45AM Apr 19, 2019Observed: 22.67 ft at 12:00PM Apr 19, 2019Observed: 22.69 ft at 12:15PM Apr 19, 2019Observed: 22.71 ft at 12:30PM Apr 19, 2019Observed: 22.68 ft at 12:45PM Apr 19, 2019Observed: 22.7 ft at 1:00PM Apr 19, 2019Observed: 22.65 ft at 1:15PM Apr 19, 2019Observed: 22.68 ft at 1:30PM Apr 19, 2019Observed: 22.69 ft at 1:45PM Apr 19, 2019Observed: 22.69 ft at 2:00PM Apr 19, 2019Observed: 22.68 ft at 2:15PM Apr 19, 2019Observed: 22.69 ft at 2:30PM Apr 19, 2019Observed: 22.69 ft at 2:45PM Apr 19, 2019Observed: 22.72 ft at 3:00PM Apr 19, 2019Observed: 22.72 ft at 3:15PM Apr 19, 2019Observed: 22.72 ft at 3:30PM Apr 19, 2019Observed: 22.72 ft at 3:45PM Apr 19, 2019Observed: 22.73 ft at 4:00PM Apr 19, 2019Observed: 22.74 ft at 4:15PM Apr 19, 2019Observed: 22.76 ft at 4:30PM Apr 19, 2019Observed: 22.73 ft at 4:45PM Apr 19, 2019Observed: 22.77 ft at 5:00PM Apr 19, 2019Observed: 22.73 ft at 5:15PM Apr 19, 2019Observed: 22.77 ft at 5:30PM Apr 19, 2019Observed: 22.79 ft at 5:45PM Apr 19, 2019Observed: 22.79 ft at 6:00PM Apr 19, 2019Observed: 22.8 ft at 6:15PM Apr 19, 2019Observed: 22.8 ft at 6:30PM Apr 19, 2019Observed: 22.8 ft at 6:45PM Apr 19, 2019Observed: 22.77 ft at 7:00PM Apr 19, 2019Observed: 22.79 ft at 7:15PM Apr 19, 2019Observed: 22.82 ft at 7:30PM Apr 19, 2019Observed: 22.79 ft at 7:45PM Apr 19, 2019Observed: 22.77 ft at 8:00PM Apr 19, 2019Observed: 22.78 ft at 8:15PM Apr 19, 2019Observed: 22.78 ft at 8:30PM Apr 19, 2019Observed: 22.76 ft at 8:45PM Apr 19, 2019Observed: 22.74 ft at 9:00PM Apr 19, 2019Observed: 22.71 ft at 9:15PM Apr 19, 2019Observed: 22.73 ft at 9:30PM Apr 19, 2019Observed: 22.69 ft at 9:45PM Apr 19, 2019Observed: 22.7 ft at 10:00PM Apr 19, 2019Observed: 22.66 ft at 10:15PM Apr 19, 2019Observed: 22.64 ft at 10:30PM Apr 19, 2019Observed: 22.63 ft at 10:45PM Apr 19, 2019Observed: 22.59 ft at 11:00PM Apr 19, 2019Observed: 22.56 ft at 11:15PM Apr 19, 2019Observed: 22.56 ft at 11:30PM Apr 19, 2019Observed: 22.54 ft at 11:45PM Apr 19, 2019Observed: 22.52 ft at 12:00AM Apr 20, 2019Observed: 22.5 ft at 12:15AM Apr 20, 2019Observed: 22.49 ft at 12:30AM Apr 20, 2019Observed: 22.49 ft at 12:45AM Apr 20, 2019Observed: 22.45 ft at 1:00AM Apr 20, 2019Observed: 22.43 ft at 1:15AM Apr 20, 2019Observed: 22.42 ft at 1:30AM Apr 20, 2019Observed: 22.35 ft at 1:45AM Apr 20, 2019Observed: 22.36 ft at 2:00AM Apr 20, 2019Observed: 22.37 ft at 2:15AM Apr 20, 2019Observed: 22.39 ft at 2:30AM Apr 20, 2019Observed: 22.4 ft at 2:45AM Apr 20, 2019Observed: 22.32 ft at 3:00AM Apr 20, 2019Observed: 22.33 ft at 3:15AM Apr 20, 2019Observed: 22.38 ft at 3:30AM Apr 20, 2019Observed: 22.36 ft at 3:45AM Apr 20, 2019Observed: 22.31 ft at 4:00AM Apr 20, 2019Observed: 22.36 ft at 4:15AM Apr 20, 2019Observed: 22.42 ft at 4:30AM Apr 20, 2019Observed: 22.36 ft at 4:45AM Apr 20, 2019Observed: 22.36 ft at 5:00AM Apr 20, 2019Observed: 22.37 ft at 5:15AM Apr 20, 2019Observed: 22.37 ft at 5:30AM Apr 20, 2019Observed: 22.37 ft at 5:45AM Apr 20, 2019Observed: 22.36 ft at 6:00AM Apr 20, 2019Observed: 22.36 ft at 6:15AM Apr 20, 2019Observed: 22.35 ft at 6:30AM Apr 20, 2019Observed: 22.33 ft at 6:45AM Apr 20, 2019Observed: 22.31 ft at 7:00AM Apr 20, 2019Observed: 22.31 ft at 7:15AM Apr 20, 2019Observed: 22.3 ft at 7:30AM Apr 20, 2019Observed: 22.3 ft at 7:45AM Apr 20, 2019Observed: 22.3 ft at 8:00AM Apr 20, 2019Observed: 22.28 ft at 8:15AM Apr 20, 2019Observed: 22.28 ft at 8:30AM Apr 20, 2019Observed: 22.27 ft at 8:45AM Apr 20, 2019Observed: 22.27 ft at 9:00AM Apr 20, 2019Observed: 22.3 ft at 9:15AM Apr 20, 2019Observed: 22.27 ft at 9:30AM Apr 20, 2019Observed: 22.26 ft at 9:45AM Apr 20, 2019Observed: 22.27 ft at 10:00AM Apr 20, 2019Observed: 22.27 ft at 10:15AM Apr 20, 2019Observed: 22.28 ft at 10:30AM Apr 20, 2019Observed: 22.24 ft at 10:45AM Apr 20, 2019Observed: 22.28 ft at 11:00AM Apr 20, 2019Observed: 22.28 ft at 11:15AM Apr 20, 2019Observed: 22.31 ft at 11:30AM Apr 20, 2019Observed: 22.3 ft at 11:45AM Apr 20, 2019Observed: 22.3 ft at 12:00PM Apr 20, 2019Observed: 22.28 ft at 12:15PM Apr 20, 2019Observed: 22.33 ft at 12:30PM Apr 20, 2019Observed: 22.36 ft at 12:45PM Apr 20, 2019Observed: 22.37 ft at 1:00PM Apr 20, 2019Observed: 22.39 ft at 1:15PM Apr 20, 2019Observed: 22.41 ft at 1:30PM Apr 20, 2019Observed: 22.39 ft at 1:45PM Apr 20, 2019Observed: 22.32 ft at 2:00PM Apr 20, 2019Observed: 22.38 ft at 2:15PM Apr 20, 2019Observed: 22.38 ft at 2:30PM Apr 20, 2019Observed: 22.39 ft at 2:45PM Apr 20, 2019Observed: 22.37 ft at 3:00PM Apr 20, 2019Observed: 22.39 ft at 3:15PM Apr 20, 2019Observed: 22.36 ft at 3:30PM Apr 20, 2019Observed: 22.35 ft at 3:45PM Apr 20, 2019Observed: 22.35 ft at 4:00PM Apr 20, 2019Observed: 22.34 ft at 4:15PM Apr 20, 2019Observed: 22.34 ft at 4:30PM Apr 20, 2019Observed: 22.34 ft at 4:45PM Apr 20, 2019Observed: 22.33 ft at 5:00PM Apr 20, 2019Observed: 22.32 ft at 5:15PM Apr 20, 2019Observed: 22.3 ft at 5:30PM Apr 20, 2019Observed: 22.29 ft at 5:45PM Apr 20, 2019Observed: 22.15 ft at 6:00PM Apr 20, 2019Observed: 22.26 ft at 6:15PM Apr 20, 2019Observed: 22.24 ft at 6:30PM Apr 20, 2019Observed: 22.24 ft at 6:45PM Apr 20, 2019Observed: 22.22 ft at 7:00PM Apr 20, 2019Observed: 22.23 ft at 7:15PM Apr 20, 2019Observed: 22.21 ft at 7:30PM Apr 20, 2019Observed: 22.18 ft at 7:45PM Apr 20, 2019Observed: 22.18 ft at 8:00PM Apr 20, 2019Observed: 22.17 ft at 8:15PM Apr 20, 2019Observed: 22.15 ft at 8:30PM Apr 20, 2019Observed: 22.15 ft at 8:45PM Apr 20, 2019Observed: 22.14 ft at 9:00PM Apr 20, 2019Observed: 22.13 ft at 9:15PM Apr 20, 2019Observed: 22.14 ft at 9:30PM Apr 20, 2019Observed: 22.14 ft at 9:45PM Apr 20, 2019Observed: 22.13 ft at 10:00PM Apr 20, 2019Observed: 22.13 ft at 10:15PM Apr 20, 2019Observed: 22.12 ft at 10:30PM Apr 20, 2019Observed: 22.11 ft at 10:45PM Apr 20, 2019Observed: 22.1 ft at 11:00PM Apr 20, 2019Observed: 22.11 ft at 11:15PM Apr 20, 2019Observed: 22.06 ft at 11:30PM Apr 20, 2019Observed: 22.06 ft at 11:45PM Apr 20, 2019Observed: 22.08 ft at 12:00AM Apr 21, 2019Observed: 22.06 ft at 12:15AM Apr 21, 2019Observed: 22.05 ft at 12:30AM Apr 21, 2019Observed: 22.06 ft at 12:45AM Apr 21, 2019Observed: 22.05 ft at 1:00AM Apr 21, 2019Observed: 22.03 ft at 1:15AM Apr 21, 2019Observed: 22.03 ft at 1:30AM Apr 21, 2019Observed: 21.97 ft at 1:45AM Apr 21, 2019Observed: 21.97 ft at 2:00AM Apr 21, 2019Observed: 21.98 ft at 2:15AM Apr 21, 2019Observed: 21.97 ft at 2:30AM Apr 21, 2019Observed: 21.95 ft at 2:45AM Apr 21, 2019Observed: 21.99 ft at 3:00AM Apr 21, 2019Observed: 22 ft at 3:15AM Apr 21, 2019Observed: 22.01 ft at 3:30AM Apr 21, 2019Observed: 22.01 ft at 3:45AM Apr 21, 2019Observed: 22.01 ft at 4:00AM Apr 21, 2019Observed: 22.04 ft at 4:15AM Apr 21, 2019Observed: 22.04 ft at 4:30AM Apr 21, 2019Observed: 22.05 ft at 4:45AM Apr 21, 2019Observed: 22.06 ft at 5:00AM Apr 21, 2019Observed: 22.06 ft at 5:15AM Apr 21, 2019Observed: 22.03 ft at 5:30AM Apr 21, 2019Observed: 22.03 ft at 5:45AM Apr 21, 2019Observed: 22.06 ft at 6:00AM Apr 21, 2019Observed: 22.08 ft at 6:15AM Apr 21, 2019Observed: 22.08 ft at 6:30AM Apr 21, 2019Observed: 22.03 ft at 6:45AM Apr 21, 2019Observed: 21.88 ft at 7:00AM Apr 21, 2019Observed: 21.97 ft at 7:15AM Apr 21, 2019Observed: 21.98 ft at 7:30AM Apr 21, 2019Observed: 21.96 ft at 7:45AM Apr 21, 2019Observed: 21.97 ft at 8:00AM Apr 21, 2019Observed: 21.97 ft at 8:15AM Apr 21, 2019Observed: 21.92 ft at 8:30AM Apr 21, 2019Observed: 21.94 ft at 8:45AM Apr 21, 2019Observed: 21.94 ft at 9:00AM Apr 21, 2019Observed: 21.92 ft at 9:15AM Apr 21, 2019Observed: 21.96 ft at 9:30AM Apr 21, 2019Observed: 21.97 ft at 9:45AM Apr 21, 2019Observed: 21.94 ft at 10:00AM Apr 21, 2019Observed: 21.91 ft at 10:15AM Apr 21, 2019Observed: 21.95 ft at 10:30AM Apr 21, 2019Observed: 21.93 ft at 10:45AM Apr 21, 2019Observed: 21.95 ft at 11:00AM Apr 21, 2019Observed: 21.94 ft at 11:15AM Apr 21, 2019Observed: 21.96 ft at 11:30AM Apr 21, 2019Observed: 21.95 ft at 11:45AM Apr 21, 2019Observed: 21.94 ft at 12:00PM Apr 21, 2019Observed: 21.95 ft at 12:15PM Apr 21, 2019Observed: 21.96 ft at 12:30PM Apr 21, 2019Observed: 21.97 ft at 12:45PM Apr 21, 2019Observed: 21.95 ft at 1:00PM Apr 21, 2019Observed: 21.94 ft at 1:15PM Apr 21, 2019Observed: 21.96 ft at 1:30PM Apr 21, 2019Observed: 21.93 ft at 1:45PM Apr 21, 2019Observed: 21.89 ft at 2:00PM Apr 21, 2019Observed: 21.9 ft at 2:15PM Apr 21, 2019Observed: 21.93 ft at 2:30PM Apr 21, 2019Observed: 21.92 ft at 2:45PM Apr 21, 2019Observed: 21.88 ft at 3:00PM Apr 21, 2019Observed: 21.86 ft at 3:15PM Apr 21, 2019Observed: 21.86 ft at 3:30PM Apr 21, 2019Observed: 21.9 ft at 3:45PM Apr 21, 2019Observed: 21.9 ft at 4:00PM Apr 21, 2019Observed: 21.89 ft at 4:15PM Apr 21, 2019Observed: 21.9 ft at 4:30PM Apr 21, 2019Observed: 21.98 ft at 4:45PM Apr 21, 2019Observed: 21.98 ft at 5:00PM Apr 21, 2019Observed: 21.91 ft at 5:15PM Apr 21, 2019Observed: 21.84 ft at 5:30PM Apr 21, 2019Observed: 21.91 ft at 5:45PM Apr 21, 2019Observed: 21.67 ft at 6:00PM Apr 21, 2019Observed: 21.92 ft at 6:15PM Apr 21, 2019Observed: 21.87 ft at 6:30PM Apr 21, 2019Observed: 21.84 ft at 6:45PM Apr 21, 2019Observed: 21.92 ft at 7:00PM Apr 21, 2019Observed: 21.94 ft at 7:15PM Apr 21, 2019Observed: 21.92 ft at 7:30PM Apr 21, 2019Observed: 21.95 ft at 7:45PM Apr 21, 2019Observed: 21.94 ft at 8:00PM Apr 21, 2019Observed: 21.94 ft at 8:15PM Apr 21, 2019Observed: 21.95 ft at 8:30PM Apr 21, 2019Observed: 21.94 ft at 8:45PM Apr 21, 2019Observed: 21.94 ft at 9:00PM Apr 21, 2019Observed: 21.91 ft at 9:15PM Apr 21, 2019Observed: 21.91 ft at 9:30PM Apr 21, 2019Observed: 21.9 ft at 9:45PM Apr 21, 2019Observed: 21.93 ft at 10:00PM Apr 21, 2019Observed: 21.92 ft at 10:15PM Apr 21, 2019Observed: 21.9 ft at 10:30PM Apr 21, 2019Observed: 21.9 ft at 10:45PM Apr 21, 2019Observed: 21.89 ft at 11:00PM Apr 21, 2019Observed: 21.89 ft at 11:15PM Apr 21, 2019Observed: 21.88 ft at 11:30PM Apr 21, 2019Observed: 21.88 ft at 11:45PM Apr 21, 2019Observed: 21.87 ft at 12:00AM Apr 22, 2019Observed: 21.88 ft at 12:15AM Apr 22, 2019Observed: 21.88 ft at 12:30AM Apr 22, 2019Observed: 21.87 ft at 12:45AM Apr 22, 2019Observed: 21.88 ft at 1:00AM Apr 22, 2019Observed: 21.89 ft at 1:15AM Apr 22, 2019Observed: 21.88 ft at 1:30AM Apr 22, 2019Observed: 21.82 ft at 1:45AM Apr 22, 2019Observed: 21.82 ft at 2:00AM Apr 22, 2019Observed: 21.87 ft at 2:15AM Apr 22, 2019Observed: 21.86 ft at 2:30AM Apr 22, 2019Observed: 21.85 ft at 2:45AM Apr 22, 2019Observed: 21.86 ft at 3:00AM Apr 22, 2019Observed: 21.86 ft at 3:15AM Apr 22, 2019Observed: 21.85 ft at 3:30AM Apr 22, 2019Observed: 21.83 ft at 3:45AM Apr 22, 2019Observed: 21.83 ft at 4:00AM Apr 22, 2019Observed: 21.81 ft at 4:15AM Apr 22, 2019Observed: 21.77 ft at 4:30AM Apr 22, 2019Observed: 21.78 ft at 4:45AM Apr 22, 2019Observed: 21.81 ft at 5:00AM Apr 22, 2019Observed: 21.81 ft at 5:15AM Apr 22, 2019Observed: 21.82 ft at 5:30AM Apr 22, 2019Observed: 21.82 ft at 5:45AM Apr 22, 2019Observed: 21.81 ft at 6:00AM Apr 22, 2019Observed: 21.74 ft at 6:15AM Apr 22, 2019Observed: 21.8 ft at 6:30AM Apr 22, 2019Observed: 21.78 ft at 6:45AM Apr 22, 2019Observed: 21.76 ft at 7:00AM Apr 22, 2019Observed: 21.75 ft at 7:15AM Apr 22, 2019Observed: 21.75 ft at 7:30AM Apr 22, 2019Observed: 21.74 ft at 7:45AM Apr 22, 2019Observed: 21.72 ft at 8:00AM Apr 22, 2019Observed: 21.72 ft at 8:15AM Apr 22, 2019Observed: 21.68 ft at 8:30AM Apr 22, 2019Observed: 21.66 ft at 8:45AM Apr 22, 2019Observed: 21.7 ft at 9:00AM Apr 22, 2019Observed: 21.7 ft at 9:15AM Apr 22, 2019Observed: 21.73 ft at 9:30AM Apr 22, 2019Observed: 21.71 ft at 9:45AM Apr 22, 2019Observed: 21.69 ft at 10:00AM Apr 22, 2019Observed: 21.74 ft at 10:15AM Apr 22, 2019Observed: 21.74 ft at 10:30AM Apr 22, 2019Observed: 21.72 ft at 10:45AM Apr 22, 2019Observed: 21.72 ft at 11:00AM Apr 22, 2019Observed: 21.73 ft at 11:15AM Apr 22, 2019Observed: 21.79 ft at 11:30AM Apr 22, 2019Observed: 21.8 ft at 11:45AM Apr 22, 2019Observed: 21.75 ft at 12:00PM Apr 22, 2019Observed: 21.74 ft at 12:15PM Apr 22, 2019Observed: 21.78 ft at 12:30PM Apr 22, 2019Observed: 21.76 ft at 12:45PM Apr 22, 2019Observed: 21.92 ft at 1:00PM Apr 22, 2019Observed: 21.74 ft at 1:15PM Apr 22, 2019Observed: 21.74 ft at 1:30PM Apr 22, 2019Observed: 21.67 ft at 1:45PM Apr 22, 2019Observed: 21.68 ft at 2:00PM Apr 22, 2019Observed: 21.69 ft at 2:15PM Apr 22, 2019Observed: 21.63 ft at 2:30PM Apr 22, 2019Observed: 21.6 ft at 2:45PM Apr 22, 2019Observed: 21.66 ft at 3:00PM Apr 22, 2019Observed: 21.65 ft at 3:15PM Apr 22, 2019Observed: 21.62 ft at 3:30PM Apr 22, 2019Observed: 21.63 ft at 3:45PM Apr 22, 2019Observed: 21.63 ft at 4:00PM Apr 22, 2019Observed: 21.68 ft at 4:15PM Apr 22, 2019Observed: 21.66 ft at 4:30PM Apr 22, 2019Observed: 21.77 ft at 4:45PM Apr 22, 2019Observed: 21.71 ft at 5:00PM Apr 22, 2019Observed: 21.75 ft at 5:15PM Apr 22, 2019Observed: 21.72 ft at 5:30PM Apr 22, 2019Observed: 21.69 ft at 5:45PM Apr 22, 2019Observed: 21.66 ft at 6:00PM Apr 22, 2019Observed: 21.7 ft at 6:15PM Apr 22, 2019Observed: 21.7 ft at 6:30PM Apr 22, 2019Observed: 21.7 ft at 6:45PM Apr 22, 2019Observed: 21.7 ft at 7:00PM Apr 22, 2019Observed: 21.76 ft at 7:15PM Apr 22, 2019Observed: 21.66 ft at 7:30PM Apr 22, 2019Observed: 21.65 ft at 7:45PM Apr 22, 2019Observed: 21.66 ft at 8:00PM Apr 22, 2019Observed: 21.66 ft at 8:15PM Apr 22, 2019Observed: 21.66 ft at 8:30PM Apr 22, 2019Observed: 21.68 ft at 8:45PM Apr 22, 2019Observed: 21.69 ft at 9:00PM Apr 22, 2019Observed: 21.65 ft at 9:15PM Apr 22, 2019Observed: 21.65 ft at 9:30PM Apr 22, 2019Observed: 21.64 ft at 9:45PM Apr 22, 2019Observed: 21.64 ft at 10:00PM Apr 22, 2019Observed: 21.65 ft at 10:15PM Apr 22, 2019Observed: 21.66 ft at 10:30PM Apr 22, 2019Observed: 21.66 ft at 10:45PM Apr 22, 2019Observed: 21.65 ft at 11:00PM Apr 22, 2019Observed: 21.65 ft at 11:15PM Apr 22, 2019Observed: 21.6 ft at 11:30PM Apr 22, 2019Observed: 21.6 ft at 11:45PM Apr 22, 2019Observed: 21.62 ft at 12:00AM Apr 23, 2019Observed: 21.62 ft at 12:15AM Apr 23, 2019Observed: 21.6 ft at 12:30AM Apr 23, 2019Observed: 21.59 ft at 12:45AM Apr 23, 2019Observed: 21.62 ft at 1:00AM Apr 23, 2019Observed: 21.63 ft at 1:15AM Apr 23, 2019Observed: 21.59 ft at 1:30AM Apr 23, 2019Observed: 21.63 ft at 1:45AM Apr 23, 2019Observed: 21.63 ft at 2:00AM Apr 23, 2019Observed: 21.66 ft at 2:15AM Apr 23, 2019Observed: 21.67 ft at 2:30AM Apr 23, 2019Observed: 21.65 ft at 2:45AM Apr 23, 2019Observed: 21.64 ft at 3:00AM Apr 23, 2019Observed: 21.62 ft at 3:15AM Apr 23, 2019Observed: 21.64 ft at 3:30AM Apr 23, 2019Observed: 21.64 ft at 3:45AM Apr 23, 2019Observed: 21.65 ft at 4:00AM Apr 23, 2019Observed: 21.63 ft at 4:15AM Apr 23, 2019Observed: 21.6 ft at 4:30AM Apr 23, 2019Observed: 21.6 ft at 4:45AM Apr 23, 2019Observed: 21.63 ft at 5:00AM Apr 23, 2019Observed: 21.55 ft at 5:15AM Apr 23, 2019Observed: 21.59 ft at 5:30AM Apr 23, 2019Observed: 21.62 ft at 5:45AM Apr 23, 2019Observed: 21.6 ft at 6:00AM Apr 23, 2019Observed: 21.55 ft at 6:15AM Apr 23, 2019Observed: 21.54 ft at 6:30AM Apr 23, 2019Observed: 21.59 ft at 6:45AM Apr 23, 2019Observed: 21.59 ft at 7:00AM Apr 23, 2019Observed: 21.56 ft at 7:15AM Apr 23, 2019Observed: 21.49 ft at 7:30AM Apr 23, 2019Observed: 21.6 ft at 7:45AM Apr 23, 2019Observed: 21.57 ft at 8:00AM Apr 23, 2019Observed: 21.56 ft at 8:15AM Apr 23, 2019Observed: 21.59 ft at 8:30AM Apr 23, 2019Observed: 21.61 ft at 8:45AM Apr 23, 2019Observed: 21.56 ft at 9:00AM Apr 23, 2019Observed: 21.58 ft at 9:15AM Apr 23, 2019Observed: 21.56 ft at 9:30AM Apr 23, 2019Observed: 21.63 ft at 9:45AM Apr 23, 2019Observed: 21.61 ft at 10:00AM Apr 23, 2019Observed: 21.6 ft at 10:15AM Apr 23, 2019Observed: 21.59 ft at 10:30AM Apr 23, 2019Observed: 21.52 ft at 10:45AM Apr 23, 2019Observed: 21.55 ft at 11:00AM Apr 23, 2019Observed: 21.6 ft at 11:15AM Apr 23, 2019Observed: 21.62 ft at 11:30AM Apr 23, 2019Observed: 21.61 ft at 11:45AM Apr 23, 2019Observed: 21.58 ft at 12:00PM Apr 23, 2019Observed: 21.57 ft at 12:15PM Apr 23, 2019Observed: 21.53 ft at 12:30PM Apr 23, 2019Observed: 21.56 ft at 12:45PM Apr 23, 2019Observed: 21.49 ft at 1:00PM Apr 23, 2019Observed: 21.55 ft at 1:15PM Apr 23, 2019Observed: 21.5 ft at 1:30PM Apr 23, 2019Observed: 21.49 ft at 1:45PM Apr 23, 2019USGS--Water Resources of the United StatesSNAI2(plotting HGIRG) Graph Created (2:39PM Apr 23, 2019)ObservedLatest observed value: 21.49 ft at 1:45 PM CDT 23-Apr-2019.
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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)
Not Available

Historic Crests
(1) 30.78 ft on 12/21/2018

(P): Preliminary values subject to further review.

Recent Crests
(1) 30.78 ft on 12/21/2018

(P): Preliminary values subject to further review.

Low Water Records
(1) 18.99 ft on 12/02/2018
Zoom Level:16
KML Image
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.
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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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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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