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Hydrograph River at a Glance Download Inundation
Mapping
Illinois River at Ottawa Stage (ft)Observed: 459.11 ft at 4:15PM Dec 11, 2017Observed: 459.09 ft at 4:30PM Dec 11, 2017Observed: 459.11 ft at 4:45PM Dec 11, 2017Observed: 459.13 ft at 5:00PM Dec 11, 2017Highest Observation: 459.23 ft at 5:15PM Dec 11, 2017Observed: 459.12 ft at 5:30PM Dec 11, 2017Observed: 459.18 ft at 5:45PM Dec 11, 2017Observed: 459.18 ft at 6:00PM Dec 11, 2017Observed: 459.17 ft at 6:15PM Dec 11, 2017Observed: 459.17 ft at 6:30PM Dec 11, 2017Observed: 459.19 ft at 6:45PM Dec 11, 2017Observed: 459.17 ft at 7:00PM Dec 11, 2017Observed: 459.15 ft at 7:15PM Dec 11, 2017Observed: 459.14 ft at 7:30PM Dec 11, 2017Observed: 459.07 ft at 7:45PM Dec 11, 2017Observed: 459.07 ft at 8:00PM Dec 11, 2017Observed: 459.04 ft at 8:15PM Dec 11, 2017Observed: 459.02 ft at 8:30PM Dec 11, 2017Observed: 459.01 ft at 8:45PM Dec 11, 2017Observed: 458.98 ft at 9:00PM Dec 11, 2017Observed: 458.98 ft at 9:15PM Dec 11, 2017Observed: 458.97 ft at 9:30PM Dec 11, 2017Observed: 458.96 ft at 9:45PM Dec 11, 2017Observed: 459.03 ft at 10:00PM Dec 11, 2017Observed: 458.95 ft at 10:15PM Dec 11, 2017Observed: 458.95 ft at 10:30PM Dec 11, 2017Observed: 458.96 ft at 10:45PM Dec 11, 2017Observed: 458.95 ft at 11:00PM Dec 11, 2017Observed: 458.98 ft at 11:15PM Dec 11, 2017Observed: 458.96 ft at 11:30PM Dec 11, 2017Observed: 458.95 ft at 11:45PM Dec 11, 2017Observed: 458.93 ft at 12:00AM Dec 12, 2017Observed: 458.93 ft at 12:15AM Dec 12, 2017Observed: 458.94 ft at 12:30AM Dec 12, 2017Observed: 458.93 ft at 12:45AM Dec 12, 2017Observed: 458.92 ft at 1:00AM Dec 12, 2017Observed: 458.93 ft at 1:15AM Dec 12, 2017Observed: 459 ft at 1:30AM Dec 12, 2017Observed: 458.99 ft at 1:45AM Dec 12, 2017Observed: 459.01 ft at 2:00AM Dec 12, 2017Observed: 458.98 ft at 2:15AM Dec 12, 2017Observed: 458.97 ft at 2:30AM Dec 12, 2017Observed: 458.97 ft at 2:45AM Dec 12, 2017Observed: 458.96 ft at 3:00AM Dec 12, 2017Observed: 458.94 ft at 3:15AM Dec 12, 2017Observed: 458.95 ft at 3:30AM Dec 12, 2017Observed: 458.96 ft at 3:45AM Dec 12, 2017Observed: 458.96 ft at 4:00AM Dec 12, 2017Observed: 458.95 ft at 4:15AM Dec 12, 2017Observed: 458.95 ft at 4:30AM Dec 12, 2017Observed: 458.97 ft at 4:45AM Dec 12, 2017Observed: 458.79 ft at 5:00AM Dec 12, 2017Observed: 458.96 ft at 5:15AM Dec 12, 2017Observed: 458.97 ft at 5:30AM Dec 12, 2017Observed: 458.96 ft at 5:45AM Dec 12, 2017Observed: 459.02 ft at 6:00AM Dec 12, 2017Observed: 459.09 ft at 6:15AM Dec 12, 2017Observed: 458.99 ft at 6:30AM Dec 12, 2017Observed: 459 ft at 6:45AM Dec 12, 2017Observed: 459.01 ft at 7:00AM Dec 12, 2017Observed: 459.01 ft at 7:15AM Dec 12, 2017Observed: 459.02 ft at 7:30AM Dec 12, 2017Observed: 459.13 ft at 7:45AM Dec 12, 2017Observed: 459.05 ft at 8:00AM Dec 12, 2017Observed: 459.06 ft at 8:15AM Dec 12, 2017Observed: 459.07 ft at 8:30AM Dec 12, 2017Observed: 459.08 ft at 8:45AM Dec 12, 2017Observed: 459.01 ft at 9:00AM Dec 12, 2017Observed: 459.14 ft at 9:15AM Dec 12, 2017Observed: 459.05 ft at 9:30AM Dec 12, 2017Observed: 459.07 ft at 9:45AM Dec 12, 2017Observed: 459.05 ft at 10:00AM Dec 12, 2017Observed: 459.04 ft at 10:15AM Dec 12, 2017Observed: 459.05 ft at 10:30AM Dec 12, 2017Observed: 459.14 ft at 10:45AM Dec 12, 2017Observed: 459.03 ft at 11:00AM Dec 12, 2017Observed: 459.03 ft at 11:15AM Dec 12, 2017Observed: 459.02 ft at 11:30AM Dec 12, 2017Observed: 459 ft at 11:45AM Dec 12, 2017Observed: 459 ft at 12:00PM Dec 12, 2017Observed: 458.99 ft at 12:15PM Dec 12, 2017Observed: 458.99 ft at 12:30PM Dec 12, 2017Observed: 458.98 ft at 12:45PM Dec 12, 2017Observed: 458.98 ft at 1:00PM Dec 12, 2017Observed: 459 ft at 1:15PM Dec 12, 2017Observed: 459.02 ft at 1:30PM Dec 12, 2017Observed: 459.03 ft at 1:45PM Dec 12, 2017Observed: 459.03 ft at 2:00PM Dec 12, 2017Observed: 459.03 ft at 2:15PM Dec 12, 2017Observed: 459.13 ft at 2:30PM Dec 12, 2017Observed: 459.05 ft at 2:45PM Dec 12, 2017Observed: 459.06 ft at 3:00PM Dec 12, 2017Observed: 459.04 ft at 3:15PM Dec 12, 2017Observed: 459.04 ft at 3:30PM Dec 12, 2017Observed: 459.11 ft at 3:45PM Dec 12, 2017Observed: 459.04 ft at 4:00PM Dec 12, 2017Observed: 459.04 ft at 4:15PM Dec 12, 2017Observed: 459.03 ft at 4:30PM Dec 12, 2017Observed: 459.01 ft at 4:45PM Dec 12, 2017Observed: 459 ft at 5:00PM Dec 12, 2017Observed: 458.98 ft at 5:15PM Dec 12, 2017Observed: 458.96 ft at 5:30PM Dec 12, 2017Observed: 458.96 ft at 5:45PM Dec 12, 2017Observed: 458.95 ft at 6:00PM Dec 12, 2017Observed: 458.96 ft at 6:15PM Dec 12, 2017Observed: 458.96 ft at 6:30PM Dec 12, 2017Observed: 458.95 ft at 6:45PM Dec 12, 2017Observed: 458.94 ft at 7:00PM Dec 12, 2017Observed: 458.94 ft at 7:15PM Dec 12, 2017Observed: 458.94 ft at 7:30PM Dec 12, 2017Observed: 458.94 ft at 7:45PM Dec 12, 2017Observed: 458.94 ft at 8:00PM Dec 12, 2017Observed: 458.93 ft at 8:15PM Dec 12, 2017Observed: 458.93 ft at 8:30PM Dec 12, 2017Observed: 459.02 ft at 8:45PM Dec 12, 2017Observed: 458.99 ft at 9:00PM Dec 12, 2017Observed: 459 ft at 9:15PM Dec 12, 2017Observed: 458.98 ft at 9:30PM Dec 12, 2017Observed: 458.98 ft at 9:45PM Dec 12, 2017Observed: 459 ft at 10:00PM Dec 12, 2017Observed: 459.01 ft at 10:15PM Dec 12, 2017Observed: 459.02 ft at 10:30PM Dec 12, 2017Observed: 459.02 ft at 10:45PM Dec 12, 2017Observed: 459.03 ft at 11:00PM Dec 12, 2017Observed: 459.03 ft at 11:15PM Dec 12, 2017Observed: 459.04 ft at 11:30PM Dec 12, 2017Observed: 459.04 ft at 11:45PM Dec 12, 2017Observed: 459.04 ft at 12:00AM Dec 13, 2017Observed: 459.05 ft at 12:15AM Dec 13, 2017Observed: 459.04 ft at 12:30AM Dec 13, 2017Observed: 459.06 ft at 12:45AM Dec 13, 2017Observed: 459.06 ft at 1:00AM Dec 13, 2017Observed: 459.05 ft at 1:15AM Dec 13, 2017Observed: 459.04 ft at 1:30AM Dec 13, 2017Observed: 459.04 ft at 1:45AM Dec 13, 2017Observed: 459.04 ft at 2:00AM Dec 13, 2017Observed: 459.04 ft at 2:15AM Dec 13, 2017Observed: 459.1 ft at 2:30AM Dec 13, 2017Observed: 459.1 ft at 2:45AM Dec 13, 2017Observed: 459.09 ft at 3:00AM Dec 13, 2017Observed: 459.03 ft at 3:15AM Dec 13, 2017Observed: 459.03 ft at 3:30AM Dec 13, 2017Observed: 459.04 ft at 3:45AM Dec 13, 2017Observed: 459.06 ft at 4:00AM Dec 13, 2017Observed: 459.06 ft at 4:15AM Dec 13, 2017Observed: 459.05 ft at 4:30AM Dec 13, 2017Observed: 459.04 ft at 4:45AM Dec 13, 2017Observed: 459.04 ft at 5:00AM Dec 13, 2017Observed: 459.03 ft at 5:15AM Dec 13, 2017Observed: 459.06 ft at 5:30AM Dec 13, 2017Observed: 459.05 ft at 5:45AM Dec 13, 2017Observed: 459.05 ft at 6:00AM Dec 13, 2017Observed: 458.98 ft at 6:15AM Dec 13, 2017Observed: 458.98 ft at 6:30AM Dec 13, 2017Observed: 459.06 ft at 6:45AM Dec 13, 2017Observed: 459 ft at 7:00AM Dec 13, 2017Observed: 458.99 ft at 7:15AM Dec 13, 2017Observed: 458.92 ft at 7:30AM Dec 13, 2017Observed: 458.94 ft at 7:45AM Dec 13, 2017Observed: 458.96 ft at 8:00AM Dec 13, 2017Observed: 458.97 ft at 8:15AM Dec 13, 2017Observed: 458.96 ft at 8:30AM Dec 13, 2017Observed: 458.97 ft at 8:45AM Dec 13, 2017Observed: 458.99 ft at 9:00AM Dec 13, 2017Observed: 459 ft at 9:15AM Dec 13, 2017Observed: 458.99 ft at 9:30AM Dec 13, 2017Observed: 458.93 ft at 9:45AM Dec 13, 2017Observed: 458.93 ft at 10:00AM Dec 13, 2017Observed: 458.91 ft at 10:15AM Dec 13, 2017Observed: 458.92 ft at 10:30AM Dec 13, 2017Observed: 458.93 ft at 10:45AM Dec 13, 2017Observed: 458.95 ft at 11:00AM Dec 13, 2017Observed: 458.96 ft at 11:15AM Dec 13, 2017Observed: 458.96 ft at 11:30AM Dec 13, 2017Observed: 458.96 ft at 11:45AM Dec 13, 2017Observed: 458.96 ft at 12:00PM Dec 13, 2017Observed: 458.96 ft at 12:15PM Dec 13, 2017Observed: 458.96 ft at 12:30PM Dec 13, 2017Observed: 458.95 ft at 12:45PM Dec 13, 2017Observed: 458.93 ft at 1:00PM Dec 13, 2017Observed: 458.9 ft at 1:15PM Dec 13, 2017Observed: 458.88 ft at 1:30PM Dec 13, 2017Observed: 458.86 ft at 1:45PM Dec 13, 2017Observed: 458.96 ft at 2:00PM Dec 13, 2017Observed: 458.98 ft at 2:15PM Dec 13, 2017Observed: 458.96 ft at 2:30PM Dec 13, 2017Observed: 458.98 ft at 2:45PM Dec 13, 2017Observed: 458.99 ft at 3:00PM Dec 13, 2017Observed: 459.05 ft at 3:15PM Dec 13, 2017Observed: 459.06 ft at 3:30PM Dec 13, 2017Observed: 459.13 ft at 3:45PM Dec 13, 2017Observed: 459.15 ft at 4:00PM Dec 13, 2017Observed: 459.13 ft at 4:15PM Dec 13, 2017Observed: 459.14 ft at 4:30PM Dec 13, 2017Observed: 459.14 ft at 4:45PM Dec 13, 2017Observed: 459.12 ft at 5:00PM Dec 13, 2017Observed: 459.09 ft at 5:15PM Dec 13, 2017Observed: 459.09 ft at 5:30PM Dec 13, 2017Observed: 459.09 ft at 5:45PM Dec 13, 2017Observed: 459.08 ft at 6:00PM Dec 13, 2017Observed: 459.09 ft at 6:15PM Dec 13, 2017Observed: 459.07 ft at 6:30PM Dec 13, 2017Observed: 459.08 ft at 6:45PM Dec 13, 2017Observed: 459.09 ft at 7:00PM Dec 13, 2017Observed: 459.1 ft at 7:15PM Dec 13, 2017Observed: 459.11 ft at 7:30PM Dec 13, 2017Observed: 459.1 ft at 7:45PM Dec 13, 2017Observed: 459.09 ft at 8:00PM Dec 13, 2017Observed: 459.09 ft at 8:15PM Dec 13, 2017Observed: 459.07 ft at 8:30PM Dec 13, 2017Observed: 459.07 ft at 8:45PM Dec 13, 2017Observed: 459.07 ft at 9:00PM Dec 13, 2017Observed: 459.06 ft at 9:15PM Dec 13, 2017Observed: 459.05 ft at 9:30PM Dec 13, 2017Observed: 459.11 ft at 9:45PM Dec 13, 2017Observed: 459.04 ft at 10:00PM Dec 13, 2017Observed: 459.06 ft at 10:15PM Dec 13, 2017Observed: 459.05 ft at 10:30PM Dec 13, 2017Observed: 459.04 ft at 10:45PM Dec 13, 2017Observed: 459.04 ft at 11:00PM Dec 13, 2017Observed: 459.04 ft at 11:15PM Dec 13, 2017Observed: 459.07 ft at 11:30PM Dec 13, 2017Observed: 459.05 ft at 11:45PM Dec 13, 2017Observed: 459.05 ft at 12:00AM Dec 14, 2017Observed: 459.04 ft at 12:15AM Dec 14, 2017Observed: 459.04 ft at 12:30AM Dec 14, 2017Observed: 459.05 ft at 12:45AM Dec 14, 2017Observed: 459.04 ft at 1:00AM Dec 14, 2017Observed: 459.04 ft at 1:15AM Dec 14, 2017Observed: 459.03 ft at 1:30AM Dec 14, 2017Observed: 459.02 ft at 1:45AM Dec 14, 2017Observed: 459.02 ft at 2:00AM Dec 14, 2017Observed: 459.02 ft at 2:15AM Dec 14, 2017Observed: 459.03 ft at 2:30AM Dec 14, 2017Observed: 459.04 ft at 2:45AM Dec 14, 2017Observed: 459.04 ft at 3:00AM Dec 14, 2017Observed: 459.04 ft at 3:15AM Dec 14, 2017Observed: 459.03 ft at 3:30AM Dec 14, 2017Observed: 459.04 ft at 3:45AM Dec 14, 2017Observed: 459.05 ft at 4:00AM Dec 14, 2017Observed: 459.05 ft at 4:15AM Dec 14, 2017Observed: 459.05 ft at 4:30AM Dec 14, 2017Observed: 459.07 ft at 4:45AM Dec 14, 2017Observed: 459.07 ft at 5:00AM Dec 14, 2017Observed: 459.07 ft at 5:15AM Dec 14, 2017Observed: 459.05 ft at 5:30AM Dec 14, 2017Observed: 459.05 ft at 6:45AM Dec 14, 2017Observed: 459.05 ft at 7:00AM Dec 14, 2017Observed: 459.05 ft at 7:15AM Dec 14, 2017Observed: 459.15 ft at 7:30AM Dec 14, 2017Observed: 459.06 ft at 7:45AM Dec 14, 2017Observed: 459.07 ft at 8:00AM Dec 14, 2017Observed: 459.06 ft at 8:15AM Dec 14, 2017Observed: 459.05 ft at 8:30AM Dec 14, 2017Observed: 459.05 ft at 8:45AM Dec 14, 2017Observed: 459.12 ft at 9:00AM Dec 14, 2017Observed: 459.09 ft at 9:15AM Dec 14, 2017Observed: 459.07 ft at 9:30AM Dec 14, 2017Observed: 459.06 ft at 9:45AM Dec 14, 2017Observed: 459.05 ft at 10:00AM Dec 14, 2017Observed: 459.05 ft at 10:15AM Dec 14, 2017Observed: 459.04 ft at 10:30AM Dec 14, 2017Observed: 459.03 ft at 10:45AM Dec 14, 2017Observed: 459.04 ft at 11:00AM Dec 14, 2017Observed: 459.03 ft at 11:15AM Dec 14, 2017Observed: 459.03 ft at 11:30AM Dec 14, 2017Observed: 459.03 ft at 11:45AM Dec 14, 2017Observed: 459.03 ft at 12:00PM Dec 14, 2017Observed: 459.03 ft at 12:15PM Dec 14, 2017Observed: 459.04 ft at 12:30PM Dec 14, 2017Observed: 459.05 ft at 12:45PM Dec 14, 2017Observed: 459.05 ft at 1:00PM Dec 14, 2017Observed: 459.05 ft at 1:15PM Dec 14, 2017Observed: 459.06 ft at 1:30PM Dec 14, 2017Observed: 458.88 ft at 1:45PM Dec 14, 2017Observed: 459 ft at 2:00PM Dec 14, 2017Observed: 459.02 ft at 2:15PM Dec 14, 2017Observed: 459.03 ft at 2:30PM Dec 14, 2017Observed: 459.04 ft at 2:45PM Dec 14, 2017Observed: 459.07 ft at 3:00PM Dec 14, 2017Observed: 459.06 ft at 3:15PM Dec 14, 2017Observed: 459.06 ft at 3:30PM Dec 14, 2017Observed: 459.06 ft at 3:45PM Dec 14, 2017Observed: 459.06 ft at 4:00PM Dec 14, 2017Observed: 459.05 ft at 4:15PM Dec 14, 2017Observed: 459.05 ft at 4:30PM Dec 14, 2017Observed: 459.13 ft at 4:45PM Dec 14, 2017Observed: 459.05 ft at 5:00PM Dec 14, 2017Observed: 459.05 ft at 5:15PM Dec 14, 2017Observed: 459.05 ft at 5:30PM Dec 14, 2017Observed: 459.05 ft at 5:45PM Dec 14, 2017Observed: 459.05 ft at 6:00PM Dec 14, 2017Observed: 459.05 ft at 6:15PM Dec 14, 2017Observed: 459.04 ft at 6:30PM Dec 14, 2017Observed: 459.04 ft at 6:45PM Dec 14, 2017Observed: 459.04 ft at 7:00PM Dec 14, 2017Observed: 459.04 ft at 7:15PM Dec 14, 2017Observed: 459.03 ft at 7:30PM Dec 14, 2017Observed: 459.02 ft at 7:45PM Dec 14, 2017Observed: 459.02 ft at 8:00PM Dec 14, 2017Observed: 459.02 ft at 8:15PM Dec 14, 2017Observed: 459.03 ft at 8:30PM Dec 14, 2017Observed: 459.03 ft at 8:45PM Dec 14, 2017Observed: 459.04 ft at 9:00PM Dec 14, 2017Observed: 459.05 ft at 9:15PM Dec 14, 2017Observed: 458.9 ft at 9:30PM Dec 14, 2017Observed: 459.03 ft at 9:45PM Dec 14, 2017Observed: 459.03 ft at 10:00PM Dec 14, 2017Observed: 459.12 ft at 10:15PM Dec 14, 2017Observed: 459.06 ft at 10:30PM Dec 14, 2017Observed: 459.06 ft at 10:45PM Dec 14, 2017Observed: 459.04 ft at 11:00PM Dec 14, 2017Observed: 459.03 ft at 11:15PM Dec 14, 2017Observed: 459.03 ft at 11:30PM Dec 14, 2017Observed: 459.03 ft at 11:45PM Dec 14, 2017Observed: 459.03 ft at 12:00AM Dec 15, 2017Observed: 459.03 ft at 12:15AM Dec 15, 2017Observed: 459.04 ft at 12:30AM Dec 15, 2017Observed: 459.04 ft at 12:45AM Dec 15, 2017Observed: 459.14 ft at 1:00AM Dec 15, 2017Observed: 459.06 ft at 1:15AM Dec 15, 2017Observed: 459.05 ft at 1:30AM Dec 15, 2017Observed: 459.06 ft at 1:45AM Dec 15, 2017Observed: 459.06 ft at 2:00AM Dec 15, 2017Observed: 459.06 ft at 2:15AM Dec 15, 2017Observed: 459.07 ft at 2:30AM Dec 15, 2017Observed: 459.05 ft at 2:45AM Dec 15, 2017Observed: 459.05 ft at 3:00AM Dec 15, 2017Observed: 459.06 ft at 3:15AM Dec 15, 2017Observed: 459.07 ft at 3:30AM Dec 15, 2017Observed: 459.08 ft at 3:45AM Dec 15, 2017Observed: 459.08 ft at 4:00AM Dec 15, 2017Observed: 459.07 ft at 4:15AM Dec 15, 2017Observed: 459.09 ft at 4:30AM Dec 15, 2017Observed: 459.11 ft at 4:45AM Dec 15, 2017Observed: 459.1 ft at 5:00AM Dec 15, 2017Observed: 459.09 ft at 5:15AM Dec 15, 2017Observed: 459.06 ft at 5:30AM Dec 15, 2017Observed: 459.03 ft at 5:45AM Dec 15, 2017Observed: 459.02 ft at 6:00AM Dec 15, 2017Observed: 458.92 ft at 6:15AM Dec 15, 2017Observed: 458.99 ft at 6:30AM Dec 15, 2017Observed: 458.99 ft at 6:45AM Dec 15, 2017Observed: 458.99 ft at 7:00AM Dec 15, 2017Observed: 459.02 ft at 7:15AM Dec 15, 2017Observed: 459.01 ft at 7:30AM Dec 15, 2017Observed: 459.03 ft at 7:45AM Dec 15, 2017Observed: 459.03 ft at 8:00AM Dec 15, 2017Observed: 459.03 ft at 8:15AM Dec 15, 2017Observed: 459.03 ft at 8:30AM Dec 15, 2017Observed: 459.03 ft at 8:45AM Dec 15, 2017Observed: 459.1 ft at 9:00AM Dec 15, 2017Observed: 459.03 ft at 9:15AM Dec 15, 2017Observed: 459.02 ft at 9:30AM Dec 15, 2017Observed: 458.96 ft at 9:45AM Dec 15, 2017Observed: 458.97 ft at 10:00AM Dec 15, 2017Observed: 458.97 ft at 10:15AM Dec 15, 2017Observed: 458.99 ft at 10:30AM Dec 15, 2017Observed: 458.99 ft at 10:45AM Dec 15, 2017Observed: 458.92 ft at 11:00AM Dec 15, 2017Observed: 459.03 ft at 11:15AM Dec 15, 2017Observed: 459.02 ft at 11:30AM Dec 15, 2017Observed: 459.01 ft at 11:45AM Dec 15, 2017Observed: 459 ft at 12:00PM Dec 15, 2017Observed: 459 ft at 12:15PM Dec 15, 2017Observed: 459 ft at 12:30PM Dec 15, 2017Observed: 459.13 ft at 12:45PM Dec 15, 2017Observed: 459 ft at 1:00PM Dec 15, 2017Observed: 459.01 ft at 1:15PM Dec 15, 2017Observed: 459.01 ft at 1:30PM Dec 15, 2017Observed: 459.04 ft at 1:45PM Dec 15, 2017Observed: 459.04 ft at 2:00PM Dec 15, 2017Observed: 459.05 ft at 2:15PM Dec 15, 2017Observed: 459.04 ft at 2:30PM Dec 15, 2017Observed: 459.11 ft at 2:45PM Dec 15, 2017Observed: 459.09 ft at 3:00PM Dec 15, 2017Observed: 459.06 ft at 3:15PM Dec 15, 2017Observed: 459.06 ft at 3:30PM Dec 15, 2017Observed: 459.05 ft at 3:45PM Dec 15, 2017Observed: 458.98 ft at 4:00PM Dec 15, 2017Observed: 459 ft at 4:15PM Dec 15, 2017Observed: 459.09 ft at 4:30PM Dec 15, 2017Observed: 459.07 ft at 4:45PM Dec 15, 2017Observed: 459.06 ft at 5:00PM Dec 15, 2017Observed: 459.04 ft at 5:15PM Dec 15, 2017Observed: 459.06 ft at 5:30PM Dec 15, 2017Observed: 459.05 ft at 5:45PM Dec 15, 2017Observed: 459.04 ft at 6:00PM Dec 15, 2017Observed: 459.02 ft at 6:15PM Dec 15, 2017Observed: 459.04 ft at 6:30PM Dec 15, 2017Observed: 459.06 ft at 6:45PM Dec 15, 2017Observed: 459.08 ft at 7:00PM Dec 15, 2017Observed: 459.08 ft at 7:15PM Dec 15, 2017Observed: 459.09 ft at 7:30PM Dec 15, 2017Observed: 459.02 ft at 7:45PM Dec 15, 2017Observed: 459.16 ft at 8:00PM Dec 15, 2017Observed: 459.16 ft at 8:15PM Dec 15, 2017Observed: 459.16 ft at 8:30PM Dec 15, 2017Observed: 459.15 ft at 8:45PM Dec 15, 2017Observed: 459.07 ft at 9:00PM Dec 15, 2017Observed: 459.08 ft at 9:15PM Dec 15, 2017Observed: 459.09 ft at 9:30PM Dec 15, 2017Observed: 459.11 ft at 9:45PM Dec 15, 2017Observed: 459.11 ft at 10:00PM Dec 15, 2017Observed: 459.13 ft at 10:15PM Dec 15, 2017Observed: 459.12 ft at 10:30PM Dec 15, 2017Observed: 459.1 ft at 10:45PM Dec 15, 2017Observed: 459.04 ft at 11:00PM Dec 15, 2017Observed: 459.05 ft at 11:15PM Dec 15, 2017Observed: 459.04 ft at 11:30PM Dec 15, 2017Observed: 459.03 ft at 11:45PM Dec 15, 2017Observed: 459.02 ft at 12:00AM Dec 16, 2017Observed: 459.03 ft at 12:15AM Dec 16, 2017Observed: 459.1 ft at 12:30AM Dec 16, 2017Observed: 459.07 ft at 12:45AM Dec 16, 2017Observed: 459.05 ft at 1:00AM Dec 16, 2017Observed: 459.03 ft at 1:15AM Dec 16, 2017Observed: 459.02 ft at 1:30AM Dec 16, 2017Observed: 459.01 ft at 1:45AM Dec 16, 2017Observed: 459 ft at 2:00AM Dec 16, 2017Observed: 459 ft at 2:15AM Dec 16, 2017Observed: 458.99 ft at 2:30AM Dec 16, 2017Observed: 458.99 ft at 2:45AM Dec 16, 2017Observed: 458.99 ft at 3:00AM Dec 16, 2017Observed: 458.99 ft at 3:15AM Dec 16, 2017Observed: 458.99 ft at 3:30AM Dec 16, 2017Observed: 459 ft at 3:45AM Dec 16, 2017Observed: 458.99 ft at 4:00AM Dec 16, 2017Observed: 458.99 ft at 4:15AM Dec 16, 2017Observed: 458.99 ft at 4:30AM Dec 16, 2017Observed: 458.99 ft at 4:45AM Dec 16, 2017Observed: 458.98 ft at 5:00AM Dec 16, 2017Observed: 458.99 ft at 5:15AM Dec 16, 2017Observed: 459 ft at 5:30AM Dec 16, 2017Observed: 459 ft at 5:45AM Dec 16, 2017Observed: 458.93 ft at 6:00AM Dec 16, 2017Observed: 459.01 ft at 6:15AM Dec 16, 2017Observed: 459.15 ft at 6:30AM Dec 16, 2017Observed: 459.06 ft at 6:45AM Dec 16, 2017Observed: 459.07 ft at 7:00AM Dec 16, 2017Observed: 459.05 ft at 7:15AM Dec 16, 2017Observed: 459.03 ft at 7:30AM Dec 16, 2017Observed: 459.09 ft at 7:45AM Dec 16, 2017Observed: 459.08 ft at 8:00AM Dec 16, 2017Observed: 459.06 ft at 8:15AM Dec 16, 2017Observed: 458.99 ft at 8:30AM Dec 16, 2017Observed: 459.01 ft at 8:45AM Dec 16, 2017Observed: 459 ft at 9:00AM Dec 16, 2017Observed: 459.08 ft at 9:15AM Dec 16, 2017Observed: 459 ft at 9:30AM Dec 16, 2017Observed: 459.01 ft at 9:45AM Dec 16, 2017Observed: 459.01 ft at 10:00AM Dec 16, 2017Observed: 459 ft at 10:15AM Dec 16, 2017Observed: 459.01 ft at 10:30AM Dec 16, 2017Observed: 459.02 ft at 10:45AM Dec 16, 2017Observed: 459.09 ft at 11:00AM Dec 16, 2017Observed: 459.07 ft at 11:15AM Dec 16, 2017Observed: 459.05 ft at 11:30AM Dec 16, 2017Observed: 459.04 ft at 11:45AM Dec 16, 2017Observed: 459.03 ft at 12:00PM Dec 16, 2017Observed: 459.02 ft at 12:15PM Dec 16, 2017Observed: 459.02 ft at 12:30PM Dec 16, 2017Observed: 459.02 ft at 12:45PM Dec 16, 2017Observed: 459.02 ft at 1:00PM Dec 16, 2017Observed: 459.14 ft at 1:15PM Dec 16, 2017Observed: 459.04 ft at 1:30PM Dec 16, 2017Observed: 459.03 ft at 1:45PM Dec 16, 2017Observed: 459.02 ft at 2:00PM Dec 16, 2017Observed: 459.05 ft at 2:15PM Dec 16, 2017Observed: 459.04 ft at 2:30PM Dec 16, 2017Observed: 459.03 ft at 2:45PM Dec 16, 2017Observed: 459.01 ft at 3:00PM Dec 16, 2017Observed: 459 ft at 3:15PM Dec 16, 2017Observed: 459.02 ft at 3:30PM Dec 16, 2017Observed: 459.01 ft at 3:45PM Dec 16, 2017Observed: 458.99 ft at 4:00PM Dec 16, 2017Observed: 458.99 ft at 4:15PM Dec 16, 2017Observed: 459 ft at 4:30PM Dec 16, 2017Observed: 459.02 ft at 4:45PM Dec 16, 2017Observed: 459.09 ft at 5:00PM Dec 16, 2017Observed: 459.09 ft at 5:15PM Dec 16, 2017Observed: 459 ft at 5:30PM Dec 16, 2017Observed: 459.01 ft at 5:45PM Dec 16, 2017Observed: 459.02 ft at 6:00PM Dec 16, 2017Observed: 459.01 ft at 6:15PM Dec 16, 2017Observed: 458.9 ft at 6:30PM Dec 16, 2017Observed: 459.1 ft at 6:45PM Dec 16, 2017Observed: 459.01 ft at 7:00PM Dec 16, 2017Observed: 459.02 ft at 7:15PM Dec 16, 2017Observed: 459.02 ft at 7:30PM Dec 16, 2017Observed: 459.04 ft at 7:45PM Dec 16, 2017Observed: 458.96 ft at 8:00PM Dec 16, 2017Observed: 459.15 ft at 8:15PM Dec 16, 2017Observed: 459.13 ft at 8:30PM Dec 16, 2017Observed: 459.13 ft at 8:45PM Dec 16, 2017Observed: 459.12 ft at 9:00PM Dec 16, 2017Observed: 459.13 ft at 9:15PM Dec 16, 2017Observed: 459.12 ft at 9:30PM Dec 16, 2017Observed: 459.12 ft at 9:45PM Dec 16, 2017Observed: 459.12 ft at 10:00PM Dec 16, 2017Observed: 459.12 ft at 10:15PM Dec 16, 2017Observed: 459.11 ft at 10:30PM Dec 16, 2017Observed: 459.14 ft at 10:45PM Dec 16, 2017Observed: 459.07 ft at 11:00PM Dec 16, 2017Observed: 459.05 ft at 11:15PM Dec 16, 2017Observed: 459.03 ft at 11:30PM Dec 16, 2017Observed: 459 ft at 11:45PM Dec 16, 2017Observed: 458.99 ft at 12:00AM Dec 17, 2017Observed: 459.02 ft at 12:15AM Dec 17, 2017Observed: 459 ft at 12:30AM Dec 17, 2017Observed: 458.99 ft at 12:45AM Dec 17, 2017Observed: 458.98 ft at 1:00AM Dec 17, 2017Observed: 458.97 ft at 1:15AM Dec 17, 2017Observed: 458.97 ft at 1:30AM Dec 17, 2017Observed: 458.96 ft at 1:45AM Dec 17, 2017Observed: 458.96 ft at 2:00AM Dec 17, 2017Observed: 458.96 ft at 2:15AM Dec 17, 2017Observed: 458.95 ft at 2:30AM Dec 17, 2017Observed: 458.96 ft at 2:45AM Dec 17, 2017Observed: 458.97 ft at 3:00AM Dec 17, 2017Observed: 458.98 ft at 3:15AM Dec 17, 2017Observed: 458.97 ft at 3:30AM Dec 17, 2017Observed: 458.98 ft at 3:45AM Dec 17, 2017Observed: 458.99 ft at 4:00AM Dec 17, 2017Observed: 458.99 ft at 4:15AM Dec 17, 2017Observed: 458.99 ft at 4:30AM Dec 17, 2017Observed: 458.99 ft at 4:45AM Dec 17, 2017Observed: 459.05 ft at 5:00AM Dec 17, 2017Observed: 459.02 ft at 5:15AM Dec 17, 2017Observed: 459 ft at 5:30AM Dec 17, 2017Observed: 459 ft at 5:45AM Dec 17, 2017Observed: 459.01 ft at 6:00AM Dec 17, 2017Observed: 459.02 ft at 6:15AM Dec 17, 2017Observed: 459.01 ft at 6:30AM Dec 17, 2017Observed: 459 ft at 6:45AM Dec 17, 2017Observed: 458.99 ft at 7:00AM Dec 17, 2017Observed: 458.99 ft at 7:15AM Dec 17, 2017Observed: 458.78 ft at 7:30AM Dec 17, 2017Observed: 459.02 ft at 7:45AM Dec 17, 2017Observed: 459.01 ft at 8:00AM Dec 17, 2017Observed: 459.01 ft at 8:15AM Dec 17, 2017Observed: 459.01 ft at 8:30AM Dec 17, 2017Observed: 459.02 ft at 8:45AM Dec 17, 2017Observed: 459.01 ft at 9:00AM Dec 17, 2017Observed: 459 ft at 9:15AM Dec 17, 2017Observed: 459.02 ft at 9:30AM Dec 17, 2017Observed: 459.04 ft at 9:45AM Dec 17, 2017Observed: 459.03 ft at 10:00AM Dec 17, 2017Observed: 459.02 ft at 10:15AM Dec 17, 2017Observed: 459.02 ft at 10:30AM Dec 17, 2017Observed: 459.02 ft at 10:45AM Dec 17, 2017Observed: 459.02 ft at 11:00AM Dec 17, 2017Observed: 458.99 ft at 11:15AM Dec 17, 2017Observed: 459.01 ft at 11:30AM Dec 17, 2017Observed: 459 ft at 11:45AM Dec 17, 2017Observed: 459 ft at 12:00PM Dec 17, 2017Observed: 459.01 ft at 12:15PM Dec 17, 2017Observed: 459 ft at 12:30PM Dec 17, 2017Observed: 459.01 ft at 12:45PM Dec 17, 2017Observed: 459.01 ft at 1:00PM Dec 17, 2017Observed: 459.01 ft at 1:15PM Dec 17, 2017Observed: 459.02 ft at 1:30PM Dec 17, 2017Observed: 459.03 ft at 1:45PM Dec 17, 2017Observed: 459.05 ft at 2:00PM Dec 17, 2017Observed: 459.07 ft at 2:15PM Dec 17, 2017Observed: 459.07 ft at 2:30PM Dec 17, 2017Observed: 459.08 ft at 2:45PM Dec 17, 2017Observed: 459.09 ft at 3:00PM Dec 17, 2017Observed: 459.09 ft at 3:15PM Dec 17, 2017Observed: 459.09 ft at 3:30PM Dec 17, 2017Observed: 459.09 ft at 3:45PM Dec 17, 2017Observed: 459.1 ft at 4:00PM Dec 17, 2017Observed: 459.11 ft at 4:15PM Dec 17, 2017Observed: 459.12 ft at 4:30PM Dec 17, 2017Observed: 458.98 ft at 4:45PM Dec 17, 2017Observed: 459.14 ft at 5:00PM Dec 17, 2017Observed: 459.04 ft at 5:15PM Dec 17, 2017Observed: 459.06 ft at 5:30PM Dec 17, 2017Observed: 459.07 ft at 5:45PM Dec 17, 2017Observed: 459.14 ft at 6:00PM Dec 17, 2017Observed: 459.12 ft at 6:15PM Dec 17, 2017Observed: 459.11 ft at 6:30PM Dec 17, 2017Observed: 459.1 ft at 6:45PM Dec 17, 2017Observed: 459.12 ft at 7:00PM Dec 17, 2017Observed: 459.11 ft at 7:15PM Dec 17, 2017Observed: 459.03 ft at 7:30PM Dec 17, 2017Observed: 459.02 ft at 7:45PM Dec 17, 2017Observed: 459.12 ft at 8:00PM Dec 17, 2017Observed: 459.11 ft at 8:15PM Dec 17, 2017Observed: 459.09 ft at 8:30PM Dec 17, 2017Observed: 459.07 ft at 8:45PM Dec 17, 2017Observed: 459.08 ft at 9:00PM Dec 17, 2017Observed: 459.08 ft at 9:15PM Dec 17, 2017Observed: 459.07 ft at 9:30PM Dec 17, 2017Observed: 459.06 ft at 9:45PM Dec 17, 2017Observed: 459.08 ft at 10:00PM Dec 17, 2017Observed: 459.06 ft at 10:15PM Dec 17, 2017Observed: 459.05 ft at 10:30PM Dec 17, 2017Observed: 459.03 ft at 10:45PM Dec 17, 2017Observed: 459.03 ft at 11:00PM Dec 17, 2017Observed: 459.02 ft at 11:15PM Dec 17, 2017Observed: 459.02 ft at 11:30PM Dec 17, 2017Observed: 459.02 ft at 11:45PM Dec 17, 2017Observed: 459.03 ft at 12:00AM Dec 18, 2017Observed: 459.03 ft at 12:15AM Dec 18, 2017Observed: 459.03 ft at 12:30AM Dec 18, 2017Observed: 459.03 ft at 12:45AM Dec 18, 2017Observed: 459.04 ft at 1:00AM Dec 18, 2017Observed: 459.04 ft at 1:15AM Dec 18, 2017Observed: 459.05 ft at 1:30AM Dec 18, 2017Observed: 459.04 ft at 1:45AM Dec 18, 2017Observed: 459.04 ft at 2:00AM Dec 18, 2017Observed: 459.04 ft at 2:15AM Dec 18, 2017Observed: 459.04 ft at 2:30AM Dec 18, 2017Observed: 459.04 ft at 2:45AM Dec 18, 2017Observed: 459.05 ft at 3:00AM Dec 18, 2017Observed: 459.04 ft at 3:15AM Dec 18, 2017Observed: 459.04 ft at 3:30AM Dec 18, 2017Observed: 459.05 ft at 3:45AM Dec 18, 2017Observed: 459.04 ft at 4:00AM Dec 18, 2017Observed: 459.03 ft at 4:15AM Dec 18, 2017Observed: 459.04 ft at 4:30AM Dec 18, 2017Observed: 459.03 ft at 4:45AM Dec 18, 2017Observed: 459.05 ft at 5:00AM Dec 18, 2017Observed: 459.04 ft at 5:15AM Dec 18, 2017Observed: 459.04 ft at 5:30AM Dec 18, 2017Observed: 459.05 ft at 5:45AM Dec 18, 2017Observed: 459.04 ft at 6:00AM Dec 18, 2017Observed: 459.05 ft at 6:15AM Dec 18, 2017Observed: 459.11 ft at 6:30AM Dec 18, 2017Observed: 459.1 ft at 6:45AM Dec 18, 2017Observed: 459.09 ft at 7:00AM Dec 18, 2017Observed: 459.08 ft at 7:15AM Dec 18, 2017Observed: 459.08 ft at 7:30AM Dec 18, 2017Observed: 458.9 ft at 7:45AM Dec 18, 2017Observed: 459.05 ft at 8:00AM Dec 18, 2017Observed: 459.04 ft at 8:15AM Dec 18, 2017Observed: 459.05 ft at 8:30AM Dec 18, 2017Observed: 459.06 ft at 8:45AM Dec 18, 2017Observed: 459.08 ft at 9:00AM Dec 18, 2017Observed: 459.1 ft at 9:15AM Dec 18, 2017Observed: 459.09 ft at 9:30AM Dec 18, 2017Observed: 459.09 ft at 9:45AM Dec 18, 2017Observed: 459.08 ft at 10:00AM Dec 18, 2017Observed: 459.08 ft at 10:15AM Dec 18, 2017Observed: 459.09 ft at 10:30AM Dec 18, 2017Observed: 459.2 ft at 10:45AM Dec 18, 2017Observed: 459.11 ft at 11:00AM Dec 18, 2017Observed: 459.1 ft at 11:15AM Dec 18, 2017Observed: 459.09 ft at 11:30AM Dec 18, 2017Observed: 459.07 ft at 11:45AM Dec 18, 2017Observed: 459.07 ft at 12:00PM Dec 18, 2017Observed: 459.19 ft at 12:15PM Dec 18, 2017Observed: 459.08 ft at 12:30PM Dec 18, 2017Observed: 459.08 ft at 12:45PM Dec 18, 2017Observed: 458.82 ft at 1:00PM Dec 18, 2017Observed: 459.04 ft at 1:15PM Dec 18, 2017Observed: 459.12 ft at 1:30PM Dec 18, 2017Observed: 459.11 ft at 1:45PM Dec 18, 2017Observed: 459.1 ft at 2:00PM Dec 18, 2017Observed: 459.1 ft at 2:15PM Dec 18, 2017Observed: 459.1 ft at 2:30PM Dec 18, 2017US Army Corps of EngineersOTWI2(plotting HGIRG) Graph Created (4:08PM Dec 18, 2017)ObservedLatest observed value: 459.1 ft at 2:30 PM CST 18-Dec-2017. Flood Stage is 463 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
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 Illinois River at Ottawa are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - at Marseilles lock/dam Upstream Gauge Downstream Gauge Downstream Gauge - at Starved Rock lock/dam
Flood Categories (in feet)
Major Flood Stage: 469
Moderate Flood Stage: 466
Flood Stage: 463
Action Stage: 461
Low Stage (in feet): -9999

Historic Crests
(1) 473.72 ft on 04/19/2013
(2) 472.21 ft on 09/16/2008
(3) 470.23 ft on 03/11/2009
(4) 468.87 ft on 12/29/2008
(5) 468.06 ft on 12/30/2015 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 464.10 ft on 07/23/2017
(2) 466.46 ft on 05/02/2017
(3) 464.33 ft on 03/31/2017
(4) 468.06 ft on 12/30/2015 (P)
(5) 467.86 ft on 06/17/2015 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
476 Water reaches top of Illinois River levee at Ottawa High School.
475.8 Water reaches to flood protection wall on Fox River south of Main Street Bridge near Ottawa High School.
475.3 Heritage Harbor lower basements begin to flood.
474.5 Water reaches top of Fox River levee at Ottawa High School.
474 Shoreline Boat Club building will be under water. Illinois River will overtop the berm at Waste Water Treatment Plant if not sandbagged.
472 Ottawa Regional Hospital west parking lot floods.
471.5 Water reaches top of Illinois River levee at city of Ottawa Waste Water Treatment Plant.
471.3 Fox River water reaches center of YMCA parking lot.
470 St Elizabeth Medical Center in Ottawa loading dock and property are threatened. Shabbona Street near Ottawa High School floods.
468.8 Water reaches top of Fox River bank at YMCA.
468.1 River Rescue Squad threatened.
467 Green Street at Shoreline Boat Club floods.
466.4 Hudson Street River Walk near the Fox River outlet floods. Fox River Park floods. St. Clair Street floods.
465.5 Marquette High School football fields begin to flood.
465.3 Lower green spaces of Ottawa Regional Hospital begin to flood.
465 Heratige Harbor Harberwalk floods. Dock ramps can only be accessed by boat.
463.9 Water reaches top of Fox River bank at St Elizabeth Medical Center in Ottawa.
462.4 Allen Park entrance threatened and west boat ramp is submerged.
460.8 River Rescue emergency boat dock is submerged. Ottawa High School begins flood fighting.
Photos
(1) Gage equipment located on top of levee near mouth of Fox River.
(2) Levee at Ottawa High School.
(3) Looking downstream from atop levee 9/3/2009. Gage height 459.80 ft.
(4) Looking upstream from atop levee 9/3/2009. Gage height 459.80 ft.
About This Location Collapse

Latitude: 41.344444° N, Longitude: 88.839167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 463 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 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:

Additional Information Collapse
How much forecast precipitation was used for the current river forecast?
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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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Page last modified: 21-Dec-2016 10:37 PM
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