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Hydrograph River at a Glance Download
North Branch Chicago River at Chicago (Grand Ave) Stage (ft)Observed: -2.18 ft at 5:20PM Apr 17, 2021Observed: -2.18 ft at 5:30PM Apr 17, 2021Observed: -2.24 ft at 5:40PM Apr 17, 2021Observed: -2.27 ft at 5:50PM Apr 17, 2021Observed: -2.29 ft at 6:00PM Apr 17, 2021Observed: -2.26 ft at 6:10PM Apr 17, 2021Observed: -2.18 ft at 6:20PM Apr 17, 2021Observed: -2.21 ft at 6:30PM Apr 17, 2021Observed: -2.19 ft at 6:40PM Apr 17, 2021Observed: -2.21 ft at 6:50PM Apr 17, 2021Observed: -2.22 ft at 7:00PM Apr 17, 2021Observed: -2.23 ft at 7:10PM Apr 17, 2021Observed: -2.23 ft at 7:20PM Apr 17, 2021Observed: -2.27 ft at 7:30PM Apr 17, 2021Observed: -2.25 ft at 7:40PM Apr 17, 2021Observed: -2.23 ft at 7:50PM Apr 17, 2021Observed: -2.19 ft at 8:00PM Apr 17, 2021Observed: -2.18 ft at 8:10PM Apr 17, 2021Observed: -2.17 ft at 8:20PM Apr 17, 2021Observed: -2.18 ft at 8:30PM Apr 17, 2021Observed: -2.17 ft at 8:40PM Apr 17, 2021Observed: -2.16 ft at 8:50PM Apr 17, 2021Observed: -2.14 ft at 9:00PM Apr 17, 2021Observed: -2.14 ft at 9:10PM Apr 17, 2021Observed: -2.12 ft at 9:20PM Apr 17, 2021Observed: -2.13 ft at 9:30PM Apr 17, 2021Observed: -2.14 ft at 9:40PM Apr 17, 2021Observed: -2.15 ft at 9:50PM Apr 17, 2021Observed: -2.14 ft at 10:00PM Apr 17, 2021Observed: -2.13 ft at 10:10PM Apr 17, 2021Observed: -2.14 ft at 10:20PM Apr 17, 2021Observed: -2.15 ft at 10:30PM Apr 17, 2021Observed: -2.15 ft at 10:40PM Apr 17, 2021Observed: -2.17 ft at 10:50PM Apr 17, 2021Observed: -2.18 ft at 11:00PM Apr 17, 2021Observed: -2.19 ft at 11:10PM Apr 17, 2021Observed: -2.19 ft at 11:20PM Apr 17, 2021Observed: -2.19 ft at 11:30PM Apr 17, 2021Observed: -2.18 ft at 11:40PM Apr 17, 2021Observed: -2.17 ft at 11:50PM Apr 17, 2021Observed: -2.15 ft at 12:00AM Apr 18, 2021Observed: -2.15 ft at 12:10AM Apr 18, 2021Observed: -2.16 ft at 12:20AM Apr 18, 2021Observed: -2.16 ft at 12:30AM Apr 18, 2021Observed: -2.17 ft at 12:40AM Apr 18, 2021Observed: -2.16 ft at 12:50AM Apr 18, 2021Observed: -2.16 ft at 1:00AM Apr 18, 2021Observed: -2.16 ft at 1:10AM Apr 18, 2021Observed: -2.15 ft at 1:20AM Apr 18, 2021Observed: -2.14 ft at 1:30AM Apr 18, 2021Observed: -2.14 ft at 1:40AM Apr 18, 2021Observed: -2.14 ft at 1:50AM Apr 18, 2021Observed: -2.14 ft at 2:00AM Apr 18, 2021Observed: -2.13 ft at 2:10AM Apr 18, 2021Observed: -2.13 ft at 2:20AM Apr 18, 2021Observed: -2.12 ft at 2:30AM Apr 18, 2021Observed: -2.12 ft at 2:40AM Apr 18, 2021Observed: -2.12 ft at 2:50AM Apr 18, 2021Observed: -2.12 ft at 3:00AM Apr 18, 2021Observed: -2.11 ft at 3:10AM Apr 18, 2021Observed: -2.11 ft at 3:20AM Apr 18, 2021Observed: -2.11 ft at 3:30AM Apr 18, 2021Observed: -2.1 ft at 3:40AM Apr 18, 2021Observed: -2.09 ft at 3:50AM Apr 18, 2021Observed: -2.09 ft at 4:00AM Apr 18, 2021Observed: -2.09 ft at 4:10AM Apr 18, 2021Observed: -2.08 ft at 4:20AM Apr 18, 2021Observed: -2.09 ft at 4:30AM Apr 18, 2021Observed: -2.09 ft at 4:40AM Apr 18, 2021Observed: -2.09 ft at 4:50AM Apr 18, 2021Observed: -2.08 ft at 5:00AM Apr 18, 2021Observed: -2.08 ft at 5:10AM Apr 18, 2021Observed: -2.12 ft at 5:20AM Apr 18, 2021Observed: -2.15 ft at 5:30AM Apr 18, 2021Observed: -2.18 ft at 5:40AM Apr 18, 2021Observed: -2.16 ft at 5:50AM Apr 18, 2021Observed: -2.15 ft at 6:00AM Apr 18, 2021Observed: -2.12 ft at 6:10AM Apr 18, 2021Observed: -2.11 ft at 6:20AM Apr 18, 2021Observed: -2.11 ft at 6:30AM Apr 18, 2021Observed: -2.11 ft at 6:40AM Apr 18, 2021Observed: -2.1 ft at 6:50AM Apr 18, 2021Observed: -2.11 ft at 7:00AM Apr 18, 2021Observed: -2.14 ft at 7:10AM Apr 18, 2021Observed: -2.16 ft at 7:20AM Apr 18, 2021Observed: -2.17 ft at 7:30AM Apr 18, 2021Observed: -2.14 ft at 7:40AM Apr 18, 2021Observed: -2.12 ft at 7:50AM Apr 18, 2021Observed: -2.1 ft at 8:00AM Apr 18, 2021Observed: -2.09 ft at 8:10AM Apr 18, 2021Observed: -2.07 ft at 8:20AM Apr 18, 2021Observed: -2.16 ft at 8:30AM Apr 18, 2021Observed: -2.2 ft at 8:40AM Apr 18, 2021Observed: -2.2 ft at 8:50AM Apr 18, 2021Observed: -2.15 ft at 9:00AM Apr 18, 2021Observed: -2.12 ft at 9:10AM Apr 18, 2021Observed: -2.14 ft at 9:20AM Apr 18, 2021Observed: -2.13 ft at 9:30AM Apr 18, 2021Observed: -2.15 ft at 9:40AM Apr 18, 2021Observed: -2.14 ft at 9:50AM Apr 18, 2021Observed: -2.11 ft at 10:00AM Apr 18, 2021Observed: -2.09 ft at 10:10AM Apr 18, 2021Observed: -2.08 ft at 10:20AM Apr 18, 2021Observed: -2.1 ft at 10:30AM Apr 18, 2021Observed: -2.1 ft at 10:40AM Apr 18, 2021Observed: -2.1 ft at 10:50AM Apr 18, 2021Observed: -2.14 ft at 11:00AM Apr 18, 2021Observed: -2.08 ft at 11:50AM Apr 18, 2021Observed: -2.09 ft at 12:00PM Apr 18, 2021Observed: -2.03 ft at 12:10PM Apr 18, 2021Observed: -2.09 ft at 12:20PM Apr 18, 2021Observed: -2.09 ft at 12:30PM Apr 18, 2021Observed: -2.06 ft at 12:40PM Apr 18, 2021Observed: -2.1 ft at 12:50PM Apr 18, 2021Observed: -2.07 ft at 1:00PM Apr 18, 2021Observed: -2.05 ft at 1:10PM Apr 18, 2021Observed: -2 ft at 1:20PM Apr 18, 2021Observed: -2.03 ft at 1:30PM Apr 18, 2021Observed: -2.02 ft at 1:40PM Apr 18, 2021Observed: -2.02 ft at 1:50PM Apr 18, 2021Observed: -2.07 ft at 2:00PM Apr 18, 2021Observed: -2.12 ft at 2:10PM Apr 18, 2021Observed: -2.14 ft at 2:20PM Apr 18, 2021Observed: -2.16 ft at 2:30PM Apr 18, 2021Observed: -2.1 ft at 2:40PM Apr 18, 2021Observed: -2.08 ft at 2:50PM Apr 18, 2021Observed: -2.09 ft at 3:00PM Apr 18, 2021Observed: -2.06 ft at 3:10PM Apr 18, 2021Observed: -2.05 ft at 3:20PM Apr 18, 2021Observed: -2.09 ft at 3:30PM Apr 18, 2021Observed: -2.03 ft at 3:40PM Apr 18, 2021Observed: -2.03 ft at 3:50PM Apr 18, 2021Observed: -2.05 ft at 4:00PM Apr 18, 2021Observed: -2.01 ft at 4:10PM Apr 18, 2021Observed: -1.99 ft at 4:20PM Apr 18, 2021Observed: -2 ft at 4:30PM Apr 18, 2021Observed: -2.02 ft at 4:40PM Apr 18, 2021Observed: -1.93 ft at 4:50PM Apr 18, 2021Observed: -1.93 ft at 5:00PM Apr 18, 2021Observed: -2.02 ft at 5:10PM Apr 18, 2021Observed: -2.03 ft at 5:20PM Apr 18, 2021Observed: -2.07 ft at 5:30PM Apr 18, 2021Observed: -2.1 ft at 5:40PM Apr 18, 2021Observed: -2.07 ft at 5:50PM Apr 18, 2021Observed: -2.04 ft at 6:00PM Apr 18, 2021Observed: -2.06 ft at 6:10PM Apr 18, 2021Observed: -2.02 ft at 6:20PM Apr 18, 2021Observed: -2.07 ft at 6:30PM Apr 18, 2021Observed: -2.08 ft at 6:40PM Apr 18, 2021Observed: -2.05 ft at 6:50PM Apr 18, 2021Observed: -2.03 ft at 7:00PM Apr 18, 2021Observed: -2.02 ft at 7:10PM Apr 18, 2021Observed: -1.99 ft at 7:20PM Apr 18, 2021Observed: -2 ft at 7:30PM Apr 18, 2021Observed: -2.04 ft at 7:40PM Apr 18, 2021Observed: -2.05 ft at 7:50PM Apr 18, 2021Observed: -2.03 ft at 8:00PM Apr 18, 2021Observed: -2.02 ft at 8:10PM Apr 18, 2021Observed: -2.02 ft at 8:20PM Apr 18, 2021Observed: -2.02 ft at 8:30PM Apr 18, 2021Observed: -2.02 ft at 8:40PM Apr 18, 2021Observed: -2.03 ft at 8:50PM Apr 18, 2021Observed: -2.09 ft at 9:00PM Apr 18, 2021Observed: -2.04 ft at 9:10PM Apr 18, 2021Observed: -2.02 ft at 9:20PM Apr 18, 2021Observed: -2.01 ft at 9:30PM Apr 18, 2021Observed: -1.99 ft at 9:40PM Apr 18, 2021Observed: -1.99 ft at 9:50PM Apr 18, 2021Observed: -1.97 ft at 10:00PM Apr 18, 2021Observed: -1.98 ft at 10:10PM Apr 18, 2021Observed: -1.96 ft at 10:20PM Apr 18, 2021Observed: -1.96 ft at 10:30PM Apr 18, 2021Observed: -1.95 ft at 10:40PM Apr 18, 2021Observed: -1.96 ft at 10:50PM Apr 18, 2021Observed: -1.97 ft at 11:00PM Apr 18, 2021Observed: -1.98 ft at 12:50AM Apr 19, 2021Observed: -1.98 ft at 1:00AM Apr 19, 2021Observed: -1.95 ft at 1:10AM Apr 19, 2021Observed: -1.96 ft at 1:20AM Apr 19, 2021Observed: -1.96 ft at 1:30AM Apr 19, 2021Observed: -1.96 ft at 1:40AM Apr 19, 2021Observed: -1.97 ft at 1:50AM Apr 19, 2021Observed: -1.96 ft at 2:00AM Apr 19, 2021Observed: -1.97 ft at 2:10AM Apr 19, 2021Observed: -1.98 ft at 2:20AM Apr 19, 2021Observed: -1.98 ft at 2:30AM Apr 19, 2021Observed: -1.98 ft at 2:40AM Apr 19, 2021Observed: -1.97 ft at 2:50AM Apr 19, 2021Observed: -2 ft at 3:00AM Apr 19, 2021Observed: -2 ft at 3:10AM Apr 19, 2021Observed: -2.05 ft at 3:20AM Apr 19, 2021Observed: -2.07 ft at 3:30AM Apr 19, 2021Observed: -2.08 ft at 3:40AM Apr 19, 2021Observed: -2.03 ft at 3:50AM Apr 19, 2021Observed: -2.01 ft at 4:00AM Apr 19, 2021Observed: -2 ft at 4:10AM Apr 19, 2021Observed: -2 ft at 4:20AM Apr 19, 2021Observed: -2.01 ft at 4:30AM Apr 19, 2021Observed: -1.98 ft at 4:40AM Apr 19, 2021Observed: -1.99 ft at 4:50AM Apr 19, 2021Observed: -2.02 ft at 5:00AM Apr 19, 2021Observed: -2.04 ft at 5:10AM Apr 19, 2021Observed: -2.03 ft at 5:20AM Apr 19, 2021Observed: -2.06 ft at 5:30AM Apr 19, 2021Observed: -2.03 ft at 5:40AM Apr 19, 2021Observed: -2.01 ft at 5:50AM Apr 19, 2021Observed: -1.98 ft at 6:00AM Apr 19, 2021Observed: -2 ft at 6:10AM Apr 19, 2021Observed: -2.02 ft at 6:20AM Apr 19, 2021Observed: -2.01 ft at 6:30AM Apr 19, 2021Observed: -2.02 ft at 6:40AM Apr 19, 2021Observed: -2 ft at 6:50AM Apr 19, 2021Observed: -1.99 ft at 7:00AM Apr 19, 2021Observed: -1.98 ft at 7:10AM Apr 19, 2021Observed: -2 ft at 7:20AM Apr 19, 2021Observed: -2 ft at 7:30AM Apr 19, 2021Observed: -2.01 ft at 7:40AM Apr 19, 2021Observed: -1.97 ft at 7:50AM Apr 19, 2021Observed: -1.98 ft at 8:00AM Apr 19, 2021Observed: -2.01 ft at 8:10AM Apr 19, 2021Observed: -2 ft at 8:20AM Apr 19, 2021Observed: -2.01 ft at 8:30AM Apr 19, 2021Observed: -2.01 ft at 8:40AM Apr 19, 2021Observed: -2.02 ft at 8:50AM Apr 19, 2021Observed: -2 ft at 9:00AM Apr 19, 2021Observed: -2.04 ft at 9:10AM Apr 19, 2021Observed: -2.05 ft at 9:20AM Apr 19, 2021Observed: -2.05 ft at 9:30AM Apr 19, 2021Observed: -2.05 ft at 9:40AM Apr 19, 2021Observed: -2.04 ft at 9:50AM Apr 19, 2021Observed: -2.09 ft at 10:00AM Apr 19, 2021Observed: -2.1 ft at 10:10AM Apr 19, 2021Observed: -2.14 ft at 10:20AM Apr 19, 2021Observed: -2.14 ft at 10:30AM Apr 19, 2021Observed: -2.15 ft at 10:40AM Apr 19, 2021Observed: -2.12 ft at 10:50AM Apr 19, 2021Observed: -2.11 ft at 11:00AM Apr 19, 2021Observed: -2.12 ft at 11:10AM Apr 19, 2021Observed: -2.1 ft at 11:20AM Apr 19, 2021Observed: -2.08 ft at 11:30AM Apr 19, 2021Observed: -2.12 ft at 11:40AM Apr 19, 2021Observed: -2.08 ft at 11:50AM Apr 19, 2021Observed: -2.11 ft at 12:00PM Apr 19, 2021Observed: -2.08 ft at 12:10PM Apr 19, 2021Observed: -2.08 ft at 12:20PM Apr 19, 2021Observed: -2.07 ft at 12:30PM Apr 19, 2021Observed: -2.05 ft at 12:40PM Apr 19, 2021Observed: -2.1 ft at 12:50PM Apr 19, 2021Observed: -2.1 ft at 1:00PM Apr 19, 2021Observed: -2.18 ft at 1:10PM Apr 19, 2021Observed: -2.17 ft at 1:20PM Apr 19, 2021Observed: -2.18 ft at 1:30PM Apr 19, 2021Observed: -2.14 ft at 1:40PM Apr 19, 2021Observed: -2.15 ft at 1:50PM Apr 19, 2021Observed: -2.19 ft at 2:00PM Apr 19, 2021Observed: -2.23 ft at 2:10PM Apr 19, 2021Observed: -2.19 ft at 2:20PM Apr 19, 2021Observed: -2.22 ft at 2:30PM Apr 19, 2021Observed: -2.14 ft at 2:40PM Apr 19, 2021Observed: -2.11 ft at 2:50PM Apr 19, 2021Observed: -2.12 ft at 3:00PM Apr 19, 2021Observed: -2.11 ft at 3:10PM Apr 19, 2021Observed: -2.09 ft at 3:20PM Apr 19, 2021Observed: -2.1 ft at 3:30PM Apr 19, 2021Observed: -2.05 ft at 3:40PM Apr 19, 2021Observed: -2.07 ft at 3:50PM Apr 19, 2021Observed: -2.06 ft at 4:00PM Apr 19, 2021Observed: -2.08 ft at 4:10PM Apr 19, 2021Observed: -2.02 ft at 4:20PM Apr 19, 2021Observed: -2.08 ft at 4:30PM Apr 19, 2021Observed: -2.06 ft at 4:40PM Apr 19, 2021Observed: -2.07 ft at 4:50PM Apr 19, 2021Observed: -2.06 ft at 5:00PM Apr 19, 2021Observed: -2.08 ft at 5:10PM Apr 19, 2021Observed: -2.09 ft at 5:20PM Apr 19, 2021Observed: -2.14 ft at 5:30PM Apr 19, 2021Observed: -2.14 ft at 5:40PM Apr 19, 2021Observed: -2.14 ft at 5:50PM Apr 19, 2021Observed: -2.14 ft at 6:00PM Apr 19, 2021Observed: -2.12 ft at 6:10PM Apr 19, 2021Observed: -2.09 ft at 6:20PM Apr 19, 2021Observed: -2.13 ft at 6:30PM Apr 19, 2021Observed: -2.14 ft at 6:40PM Apr 19, 2021Observed: -2.12 ft at 6:50PM Apr 19, 2021Observed: -2.11 ft at 7:00PM Apr 19, 2021Observed: -2.12 ft at 7:10PM Apr 19, 2021Observed: -2.1 ft at 7:20PM Apr 19, 2021Observed: -2.09 ft at 7:30PM Apr 19, 2021Observed: -2.13 ft at 7:40PM Apr 19, 2021Observed: -2.12 ft at 7:50PM Apr 19, 2021Observed: -2.13 ft at 8:00PM Apr 19, 2021Observed: -2.09 ft at 8:10PM Apr 19, 2021Observed: -2.08 ft at 8:20PM Apr 19, 2021Observed: -2.11 ft at 8:30PM Apr 19, 2021Observed: -2.11 ft at 8:40PM Apr 19, 2021Observed: -2.1 ft at 8:50PM Apr 19, 2021Observed: -2.1 ft at 9:00PM Apr 19, 2021Observed: -2.11 ft at 9:10PM Apr 19, 2021Observed: -2.11 ft at 9:20PM Apr 19, 2021Observed: -2.11 ft at 9:30PM Apr 19, 2021Observed: -2.13 ft at 9:40PM Apr 19, 2021Observed: -2.12 ft at 9:50PM Apr 19, 2021Observed: -2.11 ft at 10:00PM Apr 19, 2021Observed: -2.1 ft at 10:10PM Apr 19, 2021Observed: -2.11 ft at 10:20PM Apr 19, 2021Observed: -2.12 ft at 10:30PM Apr 19, 2021Observed: -2.12 ft at 10:40PM Apr 19, 2021Observed: -2.12 ft at 10:50PM Apr 19, 2021Observed: -2.12 ft at 11:00PM Apr 19, 2021Observed: -2.14 ft at 11:10PM Apr 19, 2021Observed: -2.17 ft at 11:20PM Apr 19, 2021Observed: -2.2 ft at 11:30PM Apr 19, 2021Observed: -2.19 ft at 11:40PM Apr 19, 2021Observed: -2.18 ft at 11:50PM Apr 19, 2021Observed: -2.14 ft at 12:00AM Apr 20, 2021Observed: -2.13 ft at 12:10AM Apr 20, 2021Observed: -2.11 ft at 12:20AM Apr 20, 2021Observed: -2.12 ft at 12:30AM Apr 20, 2021Observed: -2.11 ft at 12:40AM Apr 20, 2021Observed: -2.14 ft at 12:50AM Apr 20, 2021Observed: -2.1 ft at 1:00AM Apr 20, 2021Observed: -2.1 ft at 1:10AM Apr 20, 2021Observed: -2.08 ft at 1:20AM Apr 20, 2021Observed: -2.09 ft at 1:30AM Apr 20, 2021Observed: -2.08 ft at 1:40AM Apr 20, 2021Observed: -2.11 ft at 1:50AM Apr 20, 2021Observed: -2.15 ft at 2:00AM Apr 20, 2021Observed: -2.16 ft at 2:10AM Apr 20, 2021Observed: -2.17 ft at 2:20AM Apr 20, 2021Observed: -2.17 ft at 2:30AM Apr 20, 2021Observed: -2.12 ft at 2:40AM Apr 20, 2021Observed: -2.15 ft at 2:50AM Apr 20, 2021Observed: -2.16 ft at 3:00AM Apr 20, 2021Observed: -2.14 ft at 3:10AM Apr 20, 2021Observed: -2.16 ft at 3:20AM Apr 20, 2021Observed: -2.16 ft at 3:30AM Apr 20, 2021Observed: -2.16 ft at 3:40AM Apr 20, 2021Observed: -2.18 ft at 3:50AM Apr 20, 2021Observed: -2.2 ft at 4:00AM Apr 20, 2021Observed: -2.2 ft at 4:10AM Apr 20, 2021Observed: -2.19 ft at 4:20AM Apr 20, 2021Observed: -2.16 ft at 4:30AM Apr 20, 2021Observed: -2.16 ft at 4:40AM Apr 20, 2021Observed: -2.15 ft at 4:50AM Apr 20, 2021Observed: -2.15 ft at 5:00AM Apr 20, 2021Observed: -2.15 ft at 5:10AM Apr 20, 2021Observed: -2.16 ft at 5:20AM Apr 20, 2021Observed: -2.13 ft at 5:30AM Apr 20, 2021Observed: -2.14 ft at 5:40AM Apr 20, 2021Observed: -2.13 ft at 5:50AM Apr 20, 2021Observed: -2.14 ft at 6:00AM Apr 20, 2021Observed: -2.15 ft at 6:10AM Apr 20, 2021Observed: -2.15 ft at 6:20AM Apr 20, 2021Observed: -2.14 ft at 6:30AM Apr 20, 2021Observed: -2.12 ft at 6:40AM Apr 20, 2021Observed: -2.12 ft at 6:50AM Apr 20, 2021Observed: -2.14 ft at 7:00AM Apr 20, 2021Observed: -2.15 ft at 7:10AM Apr 20, 2021Observed: -2.17 ft at 7:20AM Apr 20, 2021Observed: -2.18 ft at 7:30AM Apr 20, 2021Observed: -2.19 ft at 7:40AM Apr 20, 2021Observed: -2.19 ft at 7:50AM Apr 20, 2021Observed: -2.2 ft at 8:00AM Apr 20, 2021Observed: -2.2 ft at 8:10AM Apr 20, 2021Observed: -2.21 ft at 8:20AM Apr 20, 2021Observed: -2.2 ft at 8:30AM Apr 20, 2021Observed: -2.19 ft at 8:40AM Apr 20, 2021Observed: -2.19 ft at 8:50AM Apr 20, 2021Observed: -2.22 ft at 9:00AM Apr 20, 2021Observed: -2.2 ft at 9:10AM Apr 20, 2021Observed: -2.19 ft at 9:20AM Apr 20, 2021Observed: -2.22 ft at 9:30AM Apr 20, 2021Observed: -2.23 ft at 9:40AM Apr 20, 2021Observed: -2.25 ft at 9:50AM Apr 20, 2021Observed: -2.25 ft at 10:00AM Apr 20, 2021Observed: -2.27 ft at 10:10AM Apr 20, 2021Observed: -2.19 ft at 10:20AM Apr 20, 2021Observed: -2.24 ft at 10:30AM Apr 20, 2021Observed: -2.22 ft at 10:40AM Apr 20, 2021Observed: -2.21 ft at 10:50AM Apr 20, 2021Observed: -2.21 ft at 11:00AM Apr 20, 2021Observed: -2.15 ft at 11:10AM Apr 20, 2021Observed: -2.2 ft at 11:20AM Apr 20, 2021Observed: -2.22 ft at 11:30AM Apr 20, 2021Observed: -2.24 ft at 11:40AM Apr 20, 2021Observed: -2.25 ft at 11:50AM Apr 20, 2021Observed: -2.29 ft at 12:00PM Apr 20, 2021Observed: -2.23 ft at 12:10PM Apr 20, 2021Observed: -2.24 ft at 12:20PM Apr 20, 2021Observed: -2.21 ft at 12:30PM Apr 20, 2021Observed: -2.21 ft at 12:40PM Apr 20, 2021Observed: -2.22 ft at 12:50PM Apr 20, 2021Observed: -2.22 ft at 1:00PM Apr 20, 2021Observed: -2.19 ft at 1:10PM Apr 20, 2021Observed: -2.24 ft at 1:20PM Apr 20, 2021Observed: -2.22 ft at 1:30PM Apr 20, 2021Observed: -2.21 ft at 1:40PM Apr 20, 2021Observed: -2.2 ft at 1:50PM Apr 20, 2021Observed: -2.2 ft at 2:00PM Apr 20, 2021Observed: -2.26 ft at 2:10PM Apr 20, 2021Observed: -2.26 ft at 2:20PM Apr 20, 2021Observed: -2.31 ft at 2:30PM Apr 20, 2021Observed: -2.28 ft at 2:40PM Apr 20, 2021Observed: -2.27 ft at 2:50PM Apr 20, 2021Observed: -2.26 ft at 3:00PM Apr 20, 2021Observed: -2.26 ft at 3:10PM Apr 20, 2021Observed: -2.28 ft at 3:20PM Apr 20, 2021Observed: -2.3 ft at 3:30PM Apr 20, 2021Observed: -2.28 ft at 3:40PM Apr 20, 2021Observed: -2.29 ft at 3:50PM Apr 20, 2021Observed: -2.28 ft at 4:00PM Apr 20, 2021Observed: -2.33 ft at 4:10PM Apr 20, 2021Observed: -2.34 ft at 4:20PM Apr 20, 2021Observed: -2.39 ft at 4:30PM Apr 20, 2021Observed: -2.37 ft at 4:40PM Apr 20, 2021Observed: -2.33 ft at 4:50PM Apr 20, 2021Observed: -2.28 ft at 5:00PM Apr 20, 2021Observed: -2.21 ft at 5:10PM Apr 20, 2021Observed: -2.2 ft at 5:20PM Apr 20, 2021Observed: -2.19 ft at 5:30PM Apr 20, 2021Observed: -2.17 ft at 5:40PM Apr 20, 2021Observed: -2.12 ft at 5:50PM Apr 20, 2021Observed: -2.1 ft at 6:00PM Apr 20, 2021Observed: -2.05 ft at 6:10PM Apr 20, 2021Observed: -2.09 ft at 6:20PM Apr 20, 2021Observed: -2.15 ft at 6:30PM Apr 20, 2021Observed: -2.18 ft at 6:40PM Apr 20, 2021Observed: -2.11 ft at 6:50PM Apr 20, 2021Observed: -2.14 ft at 7:00PM Apr 20, 2021Observed: -2.09 ft at 7:10PM Apr 20, 2021Observed: -2.1 ft at 7:20PM Apr 20, 2021Observed: -2.09 ft at 7:30PM Apr 20, 2021Observed: -2.1 ft at 7:40PM Apr 20, 2021Observed: -2.11 ft at 7:50PM Apr 20, 2021Observed: -2.1 ft at 8:00PM Apr 20, 2021Observed: -2.06 ft at 8:10PM Apr 20, 2021Observed: -2.08 ft at 8:20PM Apr 20, 2021Observed: -2.06 ft at 8:30PM Apr 20, 2021Observed: -2.07 ft at 8:40PM Apr 20, 2021Observed: -2.06 ft at 8:50PM Apr 20, 2021Observed: -2.05 ft at 9:00PM Apr 20, 2021Observed: -2.03 ft at 9:10PM Apr 20, 2021Observed: -2.02 ft at 9:20PM Apr 20, 2021Observed: -2.04 ft at 9:30PM Apr 20, 2021Observed: -2.06 ft at 9:40PM Apr 20, 2021Observed: -2.09 ft at 9:50PM Apr 20, 2021Observed: -2.1 ft at 10:00PM Apr 20, 2021Observed: -2.13 ft at 10:10PM Apr 20, 2021Observed: -2.14 ft at 10:20PM Apr 20, 2021Observed: -2.15 ft at 10:30PM Apr 20, 2021Observed: -2.16 ft at 10:40PM Apr 20, 2021Observed: -2.16 ft at 10:50PM Apr 20, 2021Observed: -2.14 ft at 11:00PM Apr 20, 2021Observed: -2.12 ft at 11:10PM Apr 20, 2021Observed: -2.1 ft at 11:20PM Apr 20, 2021Observed: -2.1 ft at 11:30PM Apr 20, 2021Observed: -2.09 ft at 11:40PM Apr 20, 2021Observed: -2.09 ft at 11:50PM Apr 20, 2021Observed: -2.08 ft at 12:00AM Apr 21, 2021Observed: -2.02 ft at 2:50AM Apr 21, 2021Observed: -2 ft at 3:00AM Apr 21, 2021Observed: -2.01 ft at 3:10AM Apr 21, 2021Observed: -2.01 ft at 3:20AM Apr 21, 2021Observed: -2.07 ft at 3:30AM Apr 21, 2021Observed: -2.09 ft at 3:40AM Apr 21, 2021Observed: -2.12 ft at 3:50AM Apr 21, 2021Observed: -2.09 ft at 4:00AM Apr 21, 2021Observed: -2.09 ft at 4:10AM Apr 21, 2021Observed: -2.07 ft at 4:20AM Apr 21, 2021Observed: -2.06 ft at 4:30AM Apr 21, 2021Observed: -2.06 ft at 4:40AM Apr 21, 2021Observed: -2.06 ft at 4:50AM Apr 21, 2021Observed: -2.07 ft at 5:00AM Apr 21, 2021Observed: -2.08 ft at 5:10AM Apr 21, 2021Observed: -2.06 ft at 5:20AM Apr 21, 2021Observed: -2.03 ft at 5:30AM Apr 21, 2021Observed: -2.02 ft at 5:40AM Apr 21, 2021Observed: -2 ft at 5:50AM Apr 21, 2021Observed: -2.01 ft at 6:00AM Apr 21, 2021Observed: -2.01 ft at 6:10AM Apr 21, 2021Observed: -2.01 ft at 6:20AM Apr 21, 2021Observed: -2.01 ft at 6:30AM Apr 21, 2021Observed: -2.02 ft at 6:40AM Apr 21, 2021Observed: -2.02 ft at 6:50AM Apr 21, 2021Observed: -2.02 ft at 7:00AM Apr 21, 2021Observed: -2.02 ft at 7:10AM Apr 21, 2021Observed: -2.02 ft at 7:20AM Apr 21, 2021Observed: -2.03 ft at 7:30AM Apr 21, 2021Observed: -2.04 ft at 7:40AM Apr 21, 2021Observed: -2.03 ft at 7:50AM Apr 21, 2021Observed: -2.03 ft at 8:00AM Apr 21, 2021Observed: -2.03 ft at 8:10AM Apr 21, 2021Observed: -2.03 ft at 8:20AM Apr 21, 2021Observed: -2.03 ft at 8:30AM Apr 21, 2021Observed: -2.04 ft at 8:40AM Apr 21, 2021Observed: -2.04 ft at 8:50AM Apr 21, 2021Observed: -2.04 ft at 9:00AM Apr 21, 2021Observed: -2.09 ft at 10:10AM Apr 21, 2021Observed: -2.14 ft at 10:50AM Apr 21, 2021Observed: -2.13 ft at 11:10AM Apr 21, 2021Observed: -2.09 ft at 11:50AM Apr 21, 2021Observed: -2.17 ft at 12:10PM Apr 21, 2021Observed: -2.16 ft at 12:50PM Apr 21, 2021Observed: -2.14 ft at 1:10PM Apr 21, 2021Observed: -2.14 ft at 1:50PM Apr 21, 2021Observed: -2.14 ft at 2:10PM Apr 21, 2021Observed: -2.17 ft at 2:50PM Apr 21, 2021Observed: -2.2 ft at 3:10PM Apr 21, 2021Observed: -2.22 ft at 3:50PM Apr 21, 2021Observed: -2.27 ft at 4:30PM Apr 21, 2021Observed: -2.23 ft at 5:10PM Apr 21, 2021Observed: -2.28 ft at 5:50PM Apr 21, 2021Observed: -2.29 ft at 6:30PM Apr 21, 2021Observed: -2.24 ft at 7:10PM Apr 21, 2021Observed: -2.22 ft at 7:50PM Apr 21, 2021Observed: -2.22 ft at 8:10PM Apr 21, 2021Observed: -2.18 ft at 8:50PM Apr 21, 2021Observed: -2.19 ft at 9:30PM Apr 21, 2021Observed: -2.16 ft at 10:10PM Apr 21, 2021Observed: -2.2 ft at 10:50PM Apr 21, 2021Observed: -2.21 ft at 11:10PM Apr 21, 2021Observed: -2.29 ft at 11:50PM Apr 21, 2021Observed: -2.29 ft at 12:10AM Apr 22, 2021Observed: -2.26 ft at 12:50AM Apr 22, 2021Observed: -2.22 ft at 1:30AM Apr 22, 2021Observed: -2.32 ft at 2:10AM Apr 22, 2021Observed: -2.27 ft at 2:50AM Apr 22, 2021Observed: -2.28 ft at 3:10AM Apr 22, 2021Observed: -2.3 ft at 3:50AM Apr 22, 2021Observed: -2.36 ft at 4:10AM Apr 22, 2021Observed: -2.29 ft at 4:50AM Apr 22, 2021Observed: -2.29 ft at 9:10AM Apr 22, 2021Observed: -2.36 ft at 9:50AM Apr 22, 2021Observed: -2.36 ft at 10:30AM Apr 22, 2021Observed: -2.32 ft at 11:10AM Apr 22, 2021Observed: -2.29 ft at 11:50AM Apr 22, 2021Observed: -2.35 ft at 12:30PM Apr 22, 2021Observed: -2.29 ft at 1:10PM Apr 22, 2021Observed: -2.34 ft at 1:50PM Apr 22, 2021Observed: -2.35 ft at 2:10PM Apr 22, 2021Observed: -2.4 ft at 2:50PM Apr 22, 2021Observed: -2.28 ft at 3:30PM Apr 22, 2021Observed: -2.25 ft at 4:00PM Apr 22, 2021USGS--Water Resources of the United StatesNBGI2(plotting HGIRP) Graph Created (5:12PM Apr 22, 2021)ObservedLatest observed value: -2.25 ft at 4:00 PM CDT 22-Apr-2021. Flood Stage is 3 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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Datum: NAVD88
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the North Branch Chicago River at Chicago (Grand Ave) are issued as needed during times of high water, but are not routinely available.

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Flood Categories (in feet)
Major Flood Stage: 5
Moderate Flood Stage: 4
Flood Stage: 3
Action Stage: 1
Low Stage (in feet): -4

Historic Crests
(1) 5.70 ft on 10/10/1954
(2) 5.00 ft on 07/24/2010
(3) 4.28 ft on 07/23/2011
(4) 4.20 ft on 08/16/1997 (P)
(5) 3.72 ft on 10/14/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 3.72 ft on 10/14/2017
(2) 3.37 ft on 06/15/2015
(3) 2.86 ft on 06/30/2014
(4) 3.67 ft on 04/18/2013
(5) 1.50 ft on 08/26/2012
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -4.50 ft on 06/28/2011
(2) -4.20 ft on 03/14/2011
(3) -4.10 ft on 09/20/2013
(4) -4.10 ft on 03/07/2009
Zoom Level:16
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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
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6 Numerous structures flooded near the river in the River West, River North, and West Loop neighborhoods.
5.5 Railroad tracks near Lake and Canal Streets are threatened.
5 Lower level of residences threatened along Wells Street near Polk Street. A few residences threatened along the river near Grand Avenue. Railroad tracks near Union Station are threatened. Lower level of office towers may be threatened near the river. Low-lying parking lots are threatened between Grand Avenue and Chicago Avenue.
4 Lower Wacker Drive is threatened.
3.5 Commercial areas of the Chicago Riverwalk are threatened.
3 Numerous stretches of the Chicago Riverwalk are inundated. USACE and MWRD consider opening of Chicago Lock to reduce flood impacts, depending on the water level of Lake Michigan.
2 Low-lying sections of the Chicago Riverwalk are threatened.
1 City of Chicago considers closure of the Chicago Riverwalk.
Photos
(1) 05/17/2020, 5.0ft. Chicago Riverwalk near Clark Street. Credit: City of Chicago
(2) 05/17/2020, 5.0ft. Chicago Riverwalk near Wells Street. Credit: City of Chicago
About This Location Collapse

Latitude: 41.891667° N, Longitude: 87.641667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 3 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 579.20 Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 579.48 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 0.0 Not Available Chicago City Datum

Current/Historical Observations:
Additional Information Collapse
How much forecast precipitation was used for the current river forecast?

This gage is on the "Chicago City Datum" (CCD). This causes stages at this gauge to often be reported as negative. Stages are not the same as river depth.
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Hydrologic Resources Additional Resources
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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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