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Hydrograph River at a Glance Download
Mississippi River at Quincy Lock and Dam 21 Tailwater (ft)Flow (kcfs)Observed: 21.27 ft at 3:40AM Apr 20, 2019Highest Observation: 21.28 ft at 3:50AM Apr 20, 2019Observed: 21.27 ft at 4:00AM Apr 20, 2019Observed: 21.27 ft at 4:10AM Apr 20, 2019Highest Observation: 21.28 ft at 4:20AM Apr 20, 2019Highest Observation: 21.28 ft at 4:30AM Apr 20, 2019Highest Observation: 21.28 ft at 4:40AM Apr 20, 2019Observed: 21.27 ft at 4:50AM Apr 20, 2019Observed: 21.26 ft at 5:00AM Apr 20, 2019Observed: 21.27 ft at 5:10AM Apr 20, 2019Observed: 21.27 ft at 5:20AM Apr 20, 2019Observed: 21.26 ft at 5:30AM Apr 20, 2019Observed: 21.25 ft at 5:40AM Apr 20, 2019Observed: 21.26 ft at 5:50AM Apr 20, 2019Observed: 21.24 ft at 6:00AM Apr 20, 2019Observed: 21.24 ft at 6:10AM Apr 20, 2019Observed: 21.23 ft at 6:20AM Apr 20, 2019Observed: 21.23 ft at 6:30AM Apr 20, 2019Observed: 21.23 ft at 6:40AM Apr 20, 2019Observed: 21.22 ft at 6:50AM Apr 20, 2019Observed: 21.23 ft at 7:00AM Apr 20, 2019Observed: 21.23 ft at 7:10AM Apr 20, 2019Observed: 21.25 ft at 7:20AM Apr 20, 2019Observed: 21.24 ft at 7:30AM Apr 20, 2019Observed: 21.24 ft at 7:40AM Apr 20, 2019Observed: 21.23 ft at 7:50AM Apr 20, 2019Observed: 21.22 ft at 8:00AM Apr 20, 2019Observed: 21.22 ft at 8:10AM Apr 20, 2019Observed: 21.22 ft at 8:20AM Apr 20, 2019Observed: 21.21 ft at 8:30AM Apr 20, 2019Observed: 21.21 ft at 8:40AM Apr 20, 2019Observed: 21.19 ft at 8:50AM Apr 20, 2019Observed: 21.2 ft at 9:00AM Apr 20, 2019Observed: 21.19 ft at 9:10AM Apr 20, 2019Observed: 21.19 ft at 9:20AM Apr 20, 2019Observed: 21.2 ft at 9:30AM Apr 20, 2019Observed: 21.19 ft at 9:40AM Apr 20, 2019Observed: 21.19 ft at 9:50AM Apr 20, 2019Observed: 21.2 ft at 10:00AM Apr 20, 2019Observed: 21.22 ft at 10:10AM Apr 20, 2019Observed: 21.21 ft at 10:20AM Apr 20, 2019Observed: 21.21 ft at 10:30AM Apr 20, 2019Observed: 21.19 ft at 10:40AM Apr 20, 2019Observed: 21.18 ft at 10:50AM Apr 20, 2019Observed: 21.17 ft at 11:00AM Apr 20, 2019Observed: 21.18 ft at 11:10AM Apr 20, 2019Observed: 21.17 ft at 11:20AM Apr 20, 2019Observed: 21.18 ft at 11:30AM Apr 20, 2019Observed: 21.16 ft at 11:40AM Apr 20, 2019Observed: 21.16 ft at 11:50AM Apr 20, 2019Observed: 21.16 ft at 12:00PM Apr 20, 2019Observed: 21.16 ft at 12:10PM Apr 20, 2019Observed: 21.16 ft at 12:20PM Apr 20, 2019Observed: 21.16 ft at 12:30PM Apr 20, 2019Observed: 21.18 ft at 12:40PM Apr 20, 2019Observed: 21.18 ft at 12:50PM Apr 20, 2019Observed: 21.18 ft at 1:00PM Apr 20, 2019Observed: 21.19 ft at 1:10PM Apr 20, 2019Observed: 21.17 ft at 1:20PM Apr 20, 2019Observed: 21.16 ft at 1:30PM Apr 20, 2019Observed: 21.16 ft at 1:40PM Apr 20, 2019Observed: 21.15 ft at 1:50PM Apr 20, 2019Observed: 21.15 ft at 2:00PM Apr 20, 2019Observed: 21.15 ft at 2:10PM Apr 20, 2019Observed: 21.13 ft at 2:20PM Apr 20, 2019Observed: 21.13 ft at 2:30PM Apr 20, 2019Observed: 21.14 ft at 2:40PM Apr 20, 2019Observed: 21.14 ft at 2:50PM Apr 20, 2019Observed: 21.15 ft at 3:00PM Apr 20, 2019Observed: 21.12 ft at 3:10PM Apr 20, 2019Observed: 21.14 ft at 3:20PM Apr 20, 2019Observed: 21.16 ft at 3:30PM Apr 20, 2019Observed: 21.19 ft at 3:40PM Apr 20, 2019Observed: 21.16 ft at 3:50PM Apr 20, 2019Observed: 21.14 ft at 4:00PM Apr 20, 2019Observed: 21.15 ft at 4:10PM Apr 20, 2019Observed: 21.15 ft at 4:20PM Apr 20, 2019Observed: 21.14 ft at 4:30PM Apr 20, 2019Observed: 21.13 ft at 4:40PM Apr 20, 2019Observed: 21.12 ft at 4:50PM Apr 20, 2019Observed: 21.12 ft at 5:00PM Apr 20, 2019Observed: 21.12 ft at 5:10PM Apr 20, 2019Observed: 21.13 ft at 5:20PM Apr 20, 2019Observed: 21.14 ft at 5:30PM Apr 20, 2019Observed: 21.15 ft at 5:40PM Apr 20, 2019Observed: 21.15 ft at 5:50PM Apr 20, 2019Observed: 21.15 ft at 6:00PM Apr 20, 2019Observed: 21.12 ft at 6:10PM Apr 20, 2019Observed: 21.13 ft at 6:20PM Apr 20, 2019Observed: 21.13 ft at 6:30PM Apr 20, 2019Observed: 21.11 ft at 6:40PM Apr 20, 2019Observed: 21.11 ft at 6:50PM Apr 20, 2019Observed: 21.11 ft at 7:00PM Apr 20, 2019Observed: 21.11 ft at 7:10PM Apr 20, 2019Observed: 21.12 ft at 7:20PM Apr 20, 2019Observed: 21.1 ft at 7:30PM Apr 20, 2019Observed: 21.1 ft at 7:40PM Apr 20, 2019Observed: 21.13 ft at 7:50PM Apr 20, 2019Observed: 21.14 ft at 8:00PM Apr 20, 2019Observed: 21.13 ft at 8:10PM Apr 20, 2019Observed: 21.14 ft at 8:20PM Apr 20, 2019Observed: 21.12 ft at 8:30PM Apr 20, 2019Observed: 21.12 ft at 8:40PM Apr 20, 2019Observed: 21.09 ft at 8:50PM Apr 20, 2019Observed: 21.1 ft at 9:00PM Apr 20, 2019Observed: 21.1 ft at 9:10PM Apr 20, 2019Observed: 21.1 ft at 9:20PM Apr 20, 2019Observed: 21.09 ft at 9:30PM Apr 20, 2019Observed: 21.1 ft at 9:40PM Apr 20, 2019Observed: 21.08 ft at 9:50PM Apr 20, 2019Observed: 21.09 ft at 10:00PM Apr 20, 2019Observed: 21.1 ft at 10:10PM Apr 20, 2019Observed: 21.1 ft at 10:20PM Apr 20, 2019Observed: 21.11 ft at 10:30PM Apr 20, 2019Observed: 21.1 ft at 10:40PM Apr 20, 2019Observed: 21.1 ft at 10:50PM Apr 20, 2019Observed: 21.09 ft at 11:00PM Apr 20, 2019Observed: 21.07 ft at 11:10PM Apr 20, 2019Observed: 21.08 ft at 11:20PM Apr 20, 2019Observed: 21.06 ft at 11:30PM Apr 20, 2019Observed: 21.07 ft at 11:40PM Apr 20, 2019Observed: 21.07 ft at 11:50PM Apr 20, 2019Observed: 21.07 ft at 12:00AM Apr 21, 2019Observed: 21.06 ft at 12:10AM Apr 21, 2019Observed: 21.07 ft at 12:20AM Apr 21, 2019Observed: 21.12 ft at 12:30AM Apr 21, 2019Observed: 21.09 ft at 12:40AM Apr 21, 2019Observed: 21.11 ft at 12:50AM Apr 21, 2019Observed: 21.08 ft at 1:00AM Apr 21, 2019Observed: 21.07 ft at 1:10AM Apr 21, 2019Observed: 21.06 ft at 1:20AM Apr 21, 2019Observed: 21.08 ft at 1:30AM Apr 21, 2019Observed: 21.07 ft at 1:40AM Apr 21, 2019Observed: 21.05 ft at 1:50AM Apr 21, 2019Observed: 21.04 ft at 2:00AM Apr 21, 2019Observed: 21.06 ft at 2:10AM Apr 21, 2019Observed: 21.05 ft at 2:20AM Apr 21, 2019Observed: 21.06 ft at 2:30AM Apr 21, 2019Observed: 21.05 ft at 2:40AM Apr 21, 2019Observed: 21.06 ft at 2:50AM Apr 21, 2019Observed: 21.07 ft at 3:00AM Apr 21, 2019Observed: 21.08 ft at 3:10AM Apr 21, 2019Observed: 21.09 ft at 3:20AM Apr 21, 2019Observed: 21.07 ft at 3:30AM Apr 21, 2019Observed: 21.06 ft at 3:40AM Apr 21, 2019Observed: 21.06 ft at 3:50AM Apr 21, 2019Observed: 21.04 ft at 4:00AM Apr 21, 2019Observed: 21.05 ft at 4:10AM Apr 21, 2019Observed: 21.05 ft at 4:20AM Apr 21, 2019Observed: 21.02 ft at 4:30AM Apr 21, 2019Observed: 21.03 ft at 4:40AM Apr 21, 2019Observed: 21.03 ft at 4:50AM Apr 21, 2019Observed: 21.05 ft at 5:00AM Apr 21, 2019Observed: 21.05 ft at 5:10AM Apr 21, 2019Observed: 21.05 ft at 5:20AM Apr 21, 2019Observed: 21.05 ft at 5:30AM Apr 21, 2019Observed: 21.05 ft at 5:40AM Apr 21, 2019Observed: 21.06 ft at 5:50AM Apr 21, 2019Observed: 21.04 ft at 6:00AM Apr 21, 2019Observed: 21.03 ft at 6:10AM Apr 21, 2019Observed: 21.02 ft at 6:20AM Apr 21, 2019Observed: 21.03 ft at 6:30AM Apr 21, 2019Observed: 21.03 ft at 6:40AM Apr 21, 2019Observed: 21.02 ft at 6:50AM Apr 21, 2019Observed: 21.02 ft at 7:00AM Apr 21, 2019Observed: 21.01 ft at 7:10AM Apr 21, 2019Observed: 21.02 ft at 7:20AM Apr 21, 2019Observed: 21.02 ft at 7:30AM Apr 21, 2019Observed: 21.03 ft at 7:40AM Apr 21, 2019Observed: 21.04 ft at 7:50AM Apr 21, 2019Observed: 21.02 ft at 8:00AM Apr 21, 2019Observed: 21.02 ft at 8:10AM Apr 21, 2019Observed: 21.03 ft at 8:20AM Apr 21, 2019Observed: 21.03 ft at 8:30AM Apr 21, 2019Observed: 21.02 ft at 8:40AM Apr 21, 2019Observed: 21.01 ft at 8:50AM Apr 21, 2019Observed: 21.01 ft at 9:00AM Apr 21, 2019Observed: 21 ft at 9:10AM Apr 21, 2019Observed: 21.01 ft at 9:20AM Apr 21, 2019Observed: 21 ft at 9:30AM Apr 21, 2019Observed: 21 ft at 9:40AM Apr 21, 2019Observed: 21 ft at 9:50AM Apr 21, 2019Observed: 20.99 ft at 10:00AM Apr 21, 2019Observed: 21.01 ft at 10:10AM Apr 21, 2019Observed: 21 ft at 10:20AM Apr 21, 2019Observed: 21.01 ft at 10:30AM Apr 21, 2019Observed: 21.01 ft at 10:40AM Apr 21, 2019Observed: 21.03 ft at 10:50AM Apr 21, 2019Observed: 21.01 ft at 11:00AM Apr 21, 2019Observed: 20.99 ft at 11:10AM Apr 21, 2019Observed: 20.98 ft at 11:20AM Apr 21, 2019Observed: 21 ft at 11:30AM Apr 21, 2019Observed: 20.98 ft at 11:40AM Apr 21, 2019Observed: 20.98 ft at 11:50AM Apr 21, 2019Observed: 21 ft at 12:00PM Apr 21, 2019Observed: 20.98 ft at 12:10PM Apr 21, 2019Observed: 20.97 ft at 12:20PM Apr 21, 2019Observed: 20.98 ft at 12:30PM Apr 21, 2019Observed: 20.98 ft at 12:40PM Apr 21, 2019Observed: 20.98 ft at 12:50PM Apr 21, 2019Observed: 20.98 ft at 1:00PM Apr 21, 2019Observed: 21.01 ft at 1:10PM Apr 21, 2019Observed: 21 ft at 1:20PM Apr 21, 2019Observed: 21 ft at 1:30PM Apr 21, 2019Observed: 20.98 ft at 1:40PM Apr 21, 2019Observed: 20.99 ft at 1:50PM Apr 21, 2019Observed: 20.98 ft at 2:00PM Apr 21, 2019Observed: 20.99 ft at 2:10PM Apr 21, 2019Observed: 20.98 ft at 2:20PM Apr 21, 2019Observed: 20.97 ft at 2:30PM Apr 21, 2019Observed: 20.98 ft at 2:40PM Apr 21, 2019Observed: 20.98 ft at 2:50PM Apr 21, 2019Observed: 20.98 ft at 3:00PM Apr 21, 2019Observed: 20.97 ft at 3:10PM Apr 21, 2019Observed: 20.97 ft at 3:20PM Apr 21, 2019Observed: 20.97 ft at 3:30PM Apr 21, 2019Observed: 20.99 ft at 3:40PM Apr 21, 2019Observed: 20.99 ft at 3:50PM Apr 21, 2019Observed: 20.98 ft at 4:00PM Apr 21, 2019Observed: 20.96 ft at 4:10PM Apr 21, 2019Observed: 20.96 ft at 4:20PM Apr 21, 2019Observed: 20.96 ft at 4:30PM Apr 21, 2019Observed: 20.97 ft at 4:40PM Apr 21, 2019Observed: 20.97 ft at 4:50PM Apr 21, 2019Observed: 20.95 ft at 5:00PM Apr 21, 2019Observed: 20.95 ft at 5:10PM Apr 21, 2019Observed: 20.96 ft at 5:20PM Apr 21, 2019Observed: 20.95 ft at 5:30PM Apr 21, 2019Observed: 20.95 ft at 5:40PM Apr 21, 2019Observed: 20.96 ft at 5:50PM Apr 21, 2019Observed: 21 ft at 6:00PM Apr 21, 2019Observed: 20.98 ft at 6:10PM Apr 21, 2019Observed: 20.98 ft at 6:20PM Apr 21, 2019Observed: 20.97 ft at 6:30PM Apr 21, 2019Observed: 20.97 ft at 6:40PM Apr 21, 2019Observed: 20.95 ft at 6:50PM Apr 21, 2019Observed: 20.96 ft at 7:00PM Apr 21, 2019Observed: 20.96 ft at 7:10PM Apr 21, 2019Observed: 20.95 ft at 7:20PM Apr 21, 2019Observed: 20.95 ft at 7:30PM Apr 21, 2019Observed: 20.95 ft at 7:40PM Apr 21, 2019Observed: 20.95 ft at 7:50PM Apr 21, 2019Observed: 20.94 ft at 8:00PM Apr 21, 2019Observed: 20.94 ft at 8:10PM Apr 21, 2019Observed: 20.96 ft at 8:20PM Apr 21, 2019Observed: 20.96 ft at 8:30PM Apr 21, 2019Observed: 20.96 ft at 8:40PM Apr 21, 2019Observed: 20.96 ft at 8:50PM Apr 21, 2019Observed: 20.95 ft at 9:00PM Apr 21, 2019Observed: 20.95 ft at 9:10PM Apr 21, 2019Observed: 20.94 ft at 9:20PM Apr 21, 2019Observed: 20.93 ft at 9:30PM Apr 21, 2019Observed: 20.93 ft at 9:40PM Apr 21, 2019Observed: 20.94 ft at 9:50PM Apr 21, 2019Observed: 20.93 ft at 10:00PM Apr 21, 2019Observed: 20.93 ft at 10:10PM Apr 21, 2019Observed: 20.93 ft at 10:20PM Apr 21, 2019Observed: 20.93 ft at 10:30PM Apr 21, 2019Observed: 20.93 ft at 10:40PM Apr 21, 2019Observed: 20.94 ft at 10:50PM Apr 21, 2019Observed: 20.95 ft at 11:00PM Apr 21, 2019Observed: 20.93 ft at 11:10PM Apr 21, 2019Observed: 20.95 ft at 11:20PM Apr 21, 2019Observed: 20.93 ft at 11:30PM Apr 21, 2019Observed: 20.93 ft at 11:40PM Apr 21, 2019Observed: 20.93 ft at 11:50PM Apr 21, 2019Observed: 20.92 ft at 12:00AM Apr 22, 2019Observed: 20.92 ft at 12:10AM Apr 22, 2019Observed: 20.91 ft at 12:20AM Apr 22, 2019Observed: 20.91 ft at 12:30AM Apr 22, 2019Observed: 20.92 ft at 12:40AM Apr 22, 2019Observed: 20.91 ft at 12:50AM Apr 22, 2019Observed: 20.92 ft at 1:00AM Apr 22, 2019Observed: 20.91 ft at 1:10AM Apr 22, 2019Observed: 20.91 ft at 1:20AM Apr 22, 2019Observed: 20.92 ft at 1:30AM Apr 22, 2019Observed: 20.94 ft at 1:40AM Apr 22, 2019Observed: 20.92 ft at 1:50AM Apr 22, 2019Observed: 20.92 ft at 2:00AM Apr 22, 2019Observed: 20.9 ft at 2:10AM Apr 22, 2019Observed: 20.92 ft at 2:20AM Apr 22, 2019Observed: 20.92 ft at 2:30AM Apr 22, 2019Observed: 20.91 ft at 2:40AM Apr 22, 2019Observed: 20.91 ft at 2:50AM Apr 22, 2019Observed: 20.91 ft at 3:00AM Apr 22, 2019Observed: 20.89 ft at 3:10AM Apr 22, 2019Observed: 20.91 ft at 3:20AM Apr 22, 2019Observed: 20.91 ft at 3:30AM Apr 22, 2019Observed: 20.93 ft at 3:40AM Apr 22, 2019Observed: 20.93 ft at 3:50AM Apr 22, 2019Observed: 20.92 ft at 4:00AM Apr 22, 2019Observed: 20.9 ft at 4:10AM Apr 22, 2019Observed: 20.89 ft at 4:20AM Apr 22, 2019Observed: 20.89 ft at 4:30AM Apr 22, 2019Observed: 20.89 ft at 4:40AM Apr 22, 2019Observed: 20.9 ft at 4:50AM Apr 22, 2019Observed: 20.89 ft at 5:00AM Apr 22, 2019Observed: 20.88 ft at 5:10AM Apr 22, 2019Observed: 20.89 ft at 5:20AM Apr 22, 2019Observed: 20.9 ft at 5:30AM Apr 22, 2019Observed: 20.92 ft at 5:40AM Apr 22, 2019Observed: 20.9 ft at 5:50AM Apr 22, 2019Observed: 20.9 ft at 6:00AM Apr 22, 2019Observed: 20.9 ft at 6:10AM Apr 22, 2019Observed: 20.89 ft at 6:20AM Apr 22, 2019Observed: 20.89 ft at 6:30AM Apr 22, 2019Observed: 20.87 ft at 6:40AM Apr 22, 2019Observed: 20.88 ft at 6:50AM Apr 22, 2019Observed: 20.87 ft at 7:00AM Apr 22, 2019Observed: 20.86 ft at 7:10AM Apr 22, 2019Observed: 20.88 ft at 7:20AM Apr 22, 2019Observed: 20.88 ft at 7:30AM Apr 22, 2019Observed: 20.88 ft at 7:40AM Apr 22, 2019Observed: 20.89 ft at 7:50AM Apr 22, 2019Observed: 20.9 ft at 8:00AM Apr 22, 2019Observed: 20.89 ft at 8:10AM Apr 22, 2019Observed: 20.89 ft at 8:20AM Apr 22, 2019Observed: 20.89 ft at 8:30AM Apr 22, 2019Observed: 20.87 ft at 8:40AM Apr 22, 2019Observed: 20.88 ft at 8:50AM Apr 22, 2019Observed: 20.86 ft at 9:00AM Apr 22, 2019Observed: 20.86 ft at 9:10AM Apr 22, 2019Observed: 20.86 ft at 9:20AM Apr 22, 2019Observed: 20.85 ft at 9:30AM Apr 22, 2019Observed: 20.86 ft at 9:40AM Apr 22, 2019Observed: 20.88 ft at 9:50AM Apr 22, 2019Observed: 20.88 ft at 10:00AM Apr 22, 2019Observed: 20.89 ft at 10:10AM Apr 22, 2019Observed: 20.87 ft at 10:20AM Apr 22, 2019Observed: 20.85 ft at 10:30AM Apr 22, 2019Observed: 20.84 ft at 10:40AM Apr 22, 2019Observed: 20.87 ft at 10:50AM Apr 22, 2019Observed: 20.87 ft at 11:00AM Apr 22, 2019Observed: 20.84 ft at 11:10AM Apr 22, 2019Observed: 20.85 ft at 11:20AM Apr 22, 2019Observed: 20.84 ft at 11:30AM Apr 22, 2019Observed: 20.86 ft at 11:40AM Apr 22, 2019Observed: 20.88 ft at 11:50AM Apr 22, 2019Observed: 20.86 ft at 12:00PM Apr 22, 2019Observed: 20.87 ft at 12:10PM Apr 22, 2019Observed: 20.88 ft at 12:20PM Apr 22, 2019Observed: 20.84 ft at 12:30PM Apr 22, 2019Observed: 20.85 ft at 12:40PM Apr 22, 2019Observed: 20.85 ft at 12:50PM Apr 22, 2019Observed: 20.85 ft at 1:00PM Apr 22, 2019Observed: 20.84 ft at 1:10PM Apr 22, 2019Observed: 20.83 ft at 1:20PM Apr 22, 2019Observed: 20.83 ft at 1:30PM Apr 22, 2019Observed: 20.83 ft at 1:40PM Apr 22, 2019Observed: 20.85 ft at 1:50PM Apr 22, 2019Observed: 20.86 ft at 2:00PM Apr 22, 2019Observed: 20.87 ft at 2:10PM Apr 22, 2019Observed: 20.84 ft at 2:20PM Apr 22, 2019Observed: 20.85 ft at 2:30PM Apr 22, 2019Observed: 20.84 ft at 2:40PM Apr 22, 2019Observed: 20.83 ft at 2:50PM Apr 22, 2019Observed: 20.83 ft at 3:00PM Apr 22, 2019Observed: 20.83 ft at 3:10PM Apr 22, 2019Observed: 20.83 ft at 3:20PM Apr 22, 2019Observed: 20.81 ft at 3:30PM Apr 22, 2019Observed: 20.82 ft at 3:40PM Apr 22, 2019Observed: 20.82 ft at 3:50PM Apr 22, 2019Observed: 20.81 ft at 4:00PM Apr 22, 2019Observed: 20.83 ft at 4:10PM Apr 22, 2019Observed: 20.83 ft at 4:20PM Apr 22, 2019Observed: 20.84 ft at 4:30PM Apr 22, 2019Observed: 20.84 ft at 4:40PM Apr 22, 2019Observed: 20.83 ft at 4:50PM Apr 22, 2019Observed: 20.81 ft at 5:00PM Apr 22, 2019Observed: 20.8 ft at 5:10PM Apr 22, 2019Observed: 20.83 ft at 5:20PM Apr 22, 2019Observed: 20.81 ft at 5:30PM Apr 22, 2019Observed: 20.8 ft at 5:40PM Apr 22, 2019Observed: 20.79 ft at 5:50PM Apr 22, 2019Observed: 20.79 ft at 6:00PM Apr 22, 2019Observed: 20.79 ft at 6:10PM Apr 22, 2019Observed: 20.79 ft at 6:20PM Apr 22, 2019Observed: 20.81 ft at 6:30PM Apr 22, 2019Observed: 20.8 ft at 6:40PM Apr 22, 2019Observed: 20.8 ft at 6:50PM Apr 22, 2019Observed: 20.81 ft at 7:00PM Apr 22, 2019Observed: 20.79 ft at 7:10PM Apr 22, 2019Observed: 20.79 ft at 7:20PM Apr 22, 2019Observed: 20.79 ft at 7:30PM Apr 22, 2019Observed: 20.79 ft at 7:40PM Apr 22, 2019Observed: 20.78 ft at 7:50PM Apr 22, 2019Observed: 20.77 ft at 8:00PM Apr 22, 2019Observed: 20.77 ft at 8:10PM Apr 22, 2019Observed: 20.78 ft at 8:20PM Apr 22, 2019Observed: 20.8 ft at 8:30PM Apr 22, 2019Observed: 20.8 ft at 8:40PM Apr 22, 2019Observed: 20.82 ft at 8:50PM Apr 22, 2019Observed: 20.79 ft at 9:00PM Apr 22, 2019Observed: 20.77 ft at 9:10PM Apr 22, 2019Observed: 20.77 ft at 9:20PM Apr 22, 2019Observed: 20.78 ft at 9:30PM Apr 22, 2019Observed: 20.77 ft at 9:40PM Apr 22, 2019Observed: 20.77 ft at 9:50PM Apr 22, 2019Observed: 20.76 ft at 10:00PM Apr 22, 2019Observed: 20.74 ft at 10:10PM Apr 22, 2019Observed: 20.75 ft at 10:20PM Apr 22, 2019Observed: 20.75 ft at 10:30PM Apr 22, 2019Observed: 20.76 ft at 10:40PM Apr 22, 2019Observed: 20.79 ft at 10:50PM Apr 22, 2019Observed: 20.77 ft at 11:00PM Apr 22, 2019Observed: 20.72 ft at 11:10PM Apr 22, 2019Observed: 20.75 ft at 11:20PM Apr 22, 2019Observed: 20.74 ft at 11:30PM Apr 22, 2019Observed: 20.73 ft at 11:40PM Apr 22, 2019Observed: 20.74 ft at 11:50PM Apr 22, 2019Observed: 20.72 ft at 12:00AM Apr 23, 2019Observed: 20.75 ft at 12:10AM Apr 23, 2019Observed: 20.74 ft at 12:20AM Apr 23, 2019Observed: 20.77 ft at 12:30AM Apr 23, 2019Observed: 20.74 ft at 12:40AM Apr 23, 2019Observed: 20.72 ft at 12:50AM Apr 23, 2019Observed: 20.73 ft at 1:00AM Apr 23, 2019Observed: 20.72 ft at 1:10AM Apr 23, 2019Observed: 20.71 ft at 1:20AM Apr 23, 2019Observed: 20.71 ft at 1:30AM Apr 23, 2019Observed: 20.7 ft at 1:40AM Apr 23, 2019Observed: 20.72 ft at 1:50AM Apr 23, 2019Observed: 20.75 ft at 2:00AM Apr 23, 2019Observed: 20.72 ft at 2:10AM Apr 23, 2019Observed: 20.72 ft at 2:20AM Apr 23, 2019Observed: 20.73 ft at 2:30AM Apr 23, 2019Observed: 20.72 ft at 2:40AM Apr 23, 2019Observed: 20.72 ft at 2:50AM Apr 23, 2019Observed: 20.7 ft at 3:00AM Apr 23, 2019Observed: 20.7 ft at 3:10AM Apr 23, 2019Observed: 20.7 ft at 3:20AM Apr 23, 2019Observed: 20.7 ft at 3:30AM Apr 23, 2019Observed: 20.68 ft at 3:40AM Apr 23, 2019Observed: 20.7 ft at 3:50AM Apr 23, 2019Observed: 20.72 ft at 4:00AM Apr 23, 2019Observed: 20.72 ft at 4:10AM Apr 23, 2019Observed: 20.72 ft at 4:20AM Apr 23, 2019Observed: 20.71 ft at 4:30AM Apr 23, 2019Observed: 20.67 ft at 4:40AM Apr 23, 2019Observed: 20.68 ft at 4:50AM Apr 23, 2019Observed: 20.67 ft at 5:00AM Apr 23, 2019Observed: 20.66 ft at 5:10AM Apr 23, 2019Observed: 20.67 ft at 5:20AM Apr 23, 2019Observed: 20.69 ft at 5:30AM Apr 23, 2019Observed: 20.68 ft at 6:10AM Apr 23, 2019Observed: 20.67 ft at 6:20AM Apr 23, 2019Observed: 20.66 ft at 6:30AM Apr 23, 2019Observed: 20.65 ft at 6:40AM Apr 23, 2019Observed: 20.65 ft at 6:50AM Apr 23, 2019Observed: 20.66 ft at 7:00AM Apr 23, 2019Observed: 20.66 ft at 7:10AM Apr 23, 2019Observed: 20.66 ft at 7:20AM Apr 23, 2019Observed: 20.68 ft at 7:30AM Apr 23, 2019Observed: 20.68 ft at 7:40AM Apr 23, 2019Observed: 20.66 ft at 7:50AM Apr 23, 2019Observed: 20.64 ft at 8:00AM Apr 23, 2019Observed: 20.57 ft at 1:10PM Apr 23, 2019Observed: 20.58 ft at 1:20PM Apr 23, 2019Observed: 20.58 ft at 1:30PM Apr 23, 2019Observed: 20.6 ft at 1:40PM Apr 23, 2019Observed: 20.61 ft at 1:50PM Apr 23, 2019Observed: 20.6 ft at 2:00PM Apr 23, 2019Observed: 20.58 ft at 2:10PM Apr 23, 2019Observed: 20.58 ft at 2:20PM Apr 23, 2019Observed: 20.57 ft at 2:30PM Apr 23, 2019Observed: 20.56 ft at 2:40PM Apr 23, 2019Observed: 20.55 ft at 2:50PM Apr 23, 2019Observed: 20.56 ft at 3:00PM Apr 23, 2019Observed: 20.57 ft at 3:10PM Apr 23, 2019Observed: 20.57 ft at 3:20PM Apr 23, 2019Observed: 20.59 ft at 3:30PM Apr 23, 2019Observed: 20.6 ft at 3:40PM Apr 23, 2019Observed: 20.57 ft at 3:50PM Apr 23, 2019Observed: 20.57 ft at 4:00PM Apr 23, 2019Observed: 20.54 ft at 4:10PM Apr 23, 2019Observed: 20.55 ft at 4:20PM Apr 23, 2019Observed: 20.54 ft at 4:30PM Apr 23, 2019Observed: 20.55 ft at 4:40PM Apr 23, 2019Observed: 20.56 ft at 4:50PM Apr 23, 2019Observed: 20.56 ft at 5:00PM Apr 23, 2019Observed: 20.59 ft at 5:10PM Apr 23, 2019Observed: 20.55 ft at 5:20PM Apr 23, 2019Observed: 20.55 ft at 5:30PM Apr 23, 2019Observed: 20.54 ft at 5:40PM Apr 23, 2019Observed: 20.54 ft at 5:50PM Apr 23, 2019Observed: 20.54 ft at 6:00PM Apr 23, 2019Observed: 20.54 ft at 6:10PM Apr 23, 2019Observed: 20.55 ft at 6:20PM Apr 23, 2019Observed: 20.55 ft at 6:30PM Apr 23, 2019Observed: 20.54 ft at 6:40PM Apr 23, 2019Observed: 20.57 ft at 6:50PM Apr 23, 2019Observed: 20.53 ft at 7:00PM Apr 23, 2019Observed: 20.53 ft at 7:10PM Apr 23, 2019Observed: 20.52 ft at 7:20PM Apr 23, 2019Observed: 20.52 ft at 7:30PM Apr 23, 2019Observed: 20.51 ft at 7:40PM Apr 23, 2019Observed: 20.52 ft at 7:50PM Apr 23, 2019Observed: 20.53 ft at 8:00PM Apr 23, 2019Observed: 20.55 ft at 8:10PM Apr 23, 2019Observed: 20.52 ft at 8:20PM Apr 23, 2019Observed: 20.55 ft at 8:30PM Apr 23, 2019Observed: 20.52 ft at 8:40PM Apr 23, 2019Observed: 20.5 ft at 8:50PM Apr 23, 2019Observed: 20.5 ft at 9:00PM Apr 23, 2019Observed: 20.49 ft at 9:10PM Apr 23, 2019Observed: 20.5 ft at 9:20PM Apr 23, 2019Observed: 20.52 ft at 9:30PM Apr 23, 2019Observed: 20.52 ft at 9:40PM Apr 23, 2019Observed: 20.53 ft at 9:50PM Apr 23, 2019Observed: 20.52 ft at 10:00PM Apr 23, 2019Observed: 20.5 ft at 10:10PM Apr 23, 2019Observed: 20.49 ft at 10:20PM Apr 23, 2019Observed: 20.5 ft at 10:30PM Apr 23, 2019Observed: 20.5 ft at 10:40PM Apr 23, 2019Observed: 20.49 ft at 10:50PM Apr 23, 2019Observed: 20.49 ft at 11:00PM Apr 23, 2019Observed: 20.49 ft at 11:10PM Apr 23, 2019Observed: 20.5 ft at 11:20PM Apr 23, 2019Observed: 20.51 ft at 11:30PM Apr 23, 2019Observed: 20.49 ft at 11:40PM Apr 23, 2019Observed: 20.5 ft at 11:50PM Apr 23, 2019Observed: 20.49 ft at 12:00AM Apr 24, 2019Observed: 20.47 ft at 12:10AM Apr 24, 2019Observed: 20.47 ft at 12:20AM Apr 24, 2019Observed: 20.45 ft at 12:30AM Apr 24, 2019Observed: 20.48 ft at 1:10AM Apr 24, 2019Observed: 20.47 ft at 1:20AM Apr 24, 2019Observed: 20.46 ft at 1:30AM Apr 24, 2019Observed: 20.45 ft at 1:40AM Apr 24, 2019Observed: 20.45 ft at 1:50AM Apr 24, 2019Observed: 20.45 ft at 2:00AM Apr 24, 2019Observed: 20.46 ft at 2:10AM Apr 24, 2019Observed: 20.45 ft at 2:20AM Apr 24, 2019Observed: 20.46 ft at 2:30AM Apr 24, 2019Observed: 20.47 ft at 2:40AM Apr 24, 2019Observed: 20.46 ft at 2:50AM Apr 24, 2019Observed: 20.46 ft at 3:00AM Apr 24, 2019Observed: 20.43 ft at 3:10AM Apr 24, 2019Observed: 20.43 ft at 3:20AM Apr 24, 2019Observed: 20.42 ft at 3:30AM Apr 24, 2019Observed: 20.41 ft at 3:40AM Apr 24, 2019Observed: 20.42 ft at 3:50AM Apr 24, 2019Observed: 20.45 ft at 4:00AM Apr 24, 2019Observed: 20.44 ft at 4:10AM Apr 24, 2019Observed: 20.42 ft at 4:20AM Apr 24, 2019Observed: 20.42 ft at 4:30AM Apr 24, 2019Observed: 20.4 ft at 4:40AM Apr 24, 2019Observed: 20.4 ft at 4:50AM Apr 24, 2019Observed: 20.4 ft at 5:00AM Apr 24, 2019Observed: 20.42 ft at 5:10AM Apr 24, 2019Observed: 20.44 ft at 5:20AM Apr 24, 2019Observed: 20.43 ft at 5:30AM Apr 24, 2019Observed: 20.41 ft at 5:40AM Apr 24, 2019Observed: 20.41 ft at 5:50AM Apr 24, 2019Observed: 20.4 ft at 6:00AM Apr 24, 2019Observed: 20.37 ft at 6:10AM Apr 24, 2019Observed: 20.38 ft at 6:20AM Apr 24, 2019Observed: 20.39 ft at 6:30AM Apr 24, 2019Observed: 20.4 ft at 6:40AM Apr 24, 2019Observed: 20.42 ft at 6:50AM Apr 24, 2019Observed: 20.4 ft at 7:00AM Apr 24, 2019Observed: 20.37 ft at 7:10AM Apr 24, 2019Observed: 20.37 ft at 7:20AM Apr 24, 2019Observed: 20.37 ft at 7:30AM Apr 24, 2019Observed: 20.36 ft at 7:40AM Apr 24, 2019Observed: 20.38 ft at 7:50AM Apr 24, 2019Observed: 20.42 ft at 8:00AM Apr 24, 2019Observed: 20.4 ft at 8:10AM Apr 24, 2019Observed: 20.4 ft at 8:20AM Apr 24, 2019Observed: 20.39 ft at 8:30AM Apr 24, 2019Observed: 20.37 ft at 8:40AM Apr 24, 2019Observed: 20.37 ft at 8:50AM Apr 24, 2019Observed: 20.36 ft at 9:00AM Apr 24, 2019Observed: 20.36 ft at 9:10AM Apr 24, 2019Observed: 20.36 ft at 9:20AM Apr 24, 2019Observed: 20.37 ft at 9:30AM Apr 24, 2019Observed: 20.39 ft at 9:40AM Apr 24, 2019Observed: 20.36 ft at 9:50AM Apr 24, 2019Observed: 20.3 ft at 10:00AM Apr 24, 2019Observed: 20.36 ft at 10:10AM Apr 24, 2019Observed: 20.35 ft at 10:20AM Apr 24, 2019Observed: 20.33 ft at 10:30AM Apr 24, 2019Observed: 20.33 ft at 10:40AM Apr 24, 2019Observed: 20.35 ft at 10:50AM Apr 24, 2019Observed: 20.34 ft at 11:00AM Apr 24, 2019Observed: 20.36 ft at 11:10AM Apr 24, 2019Observed: 20.37 ft at 11:20AM Apr 24, 2019Observed: 20.35 ft at 11:30AM Apr 24, 2019Observed: 20.33 ft at 11:40AM Apr 24, 2019Observed: 20.34 ft at 11:50AM Apr 24, 2019Observed: 20.32 ft at 12:00PM Apr 24, 2019Observed: 20.32 ft at 12:10PM Apr 24, 2019Observed: 20.3 ft at 12:20PM Apr 24, 2019Observed: 20.33 ft at 12:30PM Apr 24, 2019Observed: 20.34 ft at 12:40PM Apr 24, 2019Observed: 20.33 ft at 12:50PM Apr 24, 2019Observed: 20.33 ft at 1:00PM Apr 24, 2019Observed: 20.3 ft at 1:10PM Apr 24, 2019Observed: 20.31 ft at 1:20PM Apr 24, 2019Observed: 20.29 ft at 1:30PM Apr 24, 2019Observed: 20.32 ft at 1:40PM Apr 24, 2019Observed: 20.31 ft at 1:50PM Apr 24, 2019Observed: 20.31 ft at 2:00PM Apr 24, 2019Observed: 20.32 ft at 2:10PM Apr 24, 2019Observed: 20.31 ft at 2:20PM Apr 24, 2019Observed: 20.31 ft at 2:30PM Apr 24, 2019Observed: 20.32 ft at 2:40PM Apr 24, 2019Observed: 20.28 ft at 2:50PM Apr 24, 2019Observed: 20.29 ft at 3:00PM Apr 24, 2019Observed: 20.28 ft at 3:10PM Apr 24, 2019Observed: 20.29 ft at 3:20PM Apr 24, 2019Observed: 20.29 ft at 3:30PM Apr 24, 2019Observed: 20.33 ft at 3:40PM Apr 24, 2019Observed: 20.31 ft at 3:50PM Apr 24, 2019Observed: 20.28 ft at 4:00PM Apr 24, 2019Observed: 20.28 ft at 4:10PM Apr 24, 2019Observed: 20.26 ft at 4:20PM Apr 24, 2019Observed: 20.25 ft at 4:30PM Apr 24, 2019Observed: 20.26 ft at 4:40PM Apr 24, 2019Observed: 20.28 ft at 4:50PM Apr 24, 2019Observed: 20.29 ft at 5:00PM Apr 24, 2019Observed: 20.3 ft at 5:10PM Apr 24, 2019Observed: 20.28 ft at 5:20PM Apr 24, 2019Observed: 20.26 ft at 5:30PM Apr 24, 2019Observed: 20.26 ft at 5:40PM Apr 24, 2019Observed: 20.25 ft at 5:50PM Apr 24, 2019Observed: 20.24 ft at 6:00PM Apr 24, 2019Observed: 20.27 ft at 6:10PM Apr 24, 2019Observed: 20.28 ft at 6:20PM Apr 24, 2019Observed: 20.27 ft at 6:30PM Apr 24, 2019Observed: 20.24 ft at 6:40PM Apr 24, 2019Observed: 20.23 ft at 6:50PM Apr 24, 2019Observed: 20.24 ft at 7:00PM Apr 24, 2019Observed: 20.23 ft at 7:10PM Apr 24, 2019Observed: 20.23 ft at 7:20PM Apr 24, 2019Observed: 20.25 ft at 7:30PM Apr 24, 2019Observed: 20.24 ft at 7:40PM Apr 24, 2019Observed: 20.26 ft at 7:50PM Apr 24, 2019Observed: 20.23 ft at 8:00PM Apr 24, 2019Observed: 20.22 ft at 8:10PM Apr 24, 2019Observed: 20.23 ft at 8:20PM Apr 24, 2019Observed: 20.21 ft at 8:30PM Apr 24, 2019Observed: 20.21 ft at 8:40PM Apr 24, 2019Observed: 20.22 ft at 8:50PM Apr 24, 2019Observed: 20.24 ft at 9:00PM Apr 24, 2019Observed: 20.22 ft at 9:10PM Apr 24, 2019Observed: 20.22 ft at 9:20PM Apr 24, 2019Observed: 20.2 ft at 9:30PM Apr 24, 2019Observed: 20.19 ft at 9:40PM Apr 24, 2019Observed: 20.2 ft at 9:50PM Apr 24, 2019Observed: 20.2 ft at 10:00PM Apr 24, 2019Observed: 20.21 ft at 10:10PM Apr 24, 2019Observed: 20.21 ft at 10:20PM Apr 24, 2019Observed: 20.21 ft at 10:30PM Apr 24, 2019Observed: 20.19 ft at 10:40PM Apr 24, 2019Observed: 20.18 ft at 10:50PM Apr 24, 2019Observed: 20.17 ft at 11:00PM Apr 24, 2019Observed: 20.17 ft at 11:10PM Apr 24, 2019Observed: 20.19 ft at 11:20PM Apr 24, 2019Observed: 20.21 ft at 11:30PM Apr 24, 2019Observed: 20.18 ft at 11:40PM Apr 24, 2019Observed: 20.16 ft at 11:50PM Apr 24, 2019Observed: 20.16 ft at 12:00AM Apr 25, 2019Observed: 20.15 ft at 12:10AM Apr 25, 2019Observed: 20.15 ft at 12:20AM Apr 25, 2019Observed: 20.17 ft at 12:30AM Apr 25, 2019Observed: 20.18 ft at 12:40AM Apr 25, 2019Observed: 20.16 ft at 12:50AM Apr 25, 2019Observed: 20.14 ft at 1:00AM Apr 25, 2019Observed: 20.14 ft at 1:10AM Apr 25, 2019Observed: 20.13 ft at 1:20AM Apr 25, 2019Observed: 20.14 ft at 1:30AM Apr 25, 2019Observed: 20.14 ft at 1:40AM Apr 25, 2019Observed: 20.15 ft at 1:50AM Apr 25, 2019Observed: 20.15 ft at 2:00AM Apr 25, 2019Observed: 20.12 ft at 2:10AM Apr 25, 2019Observed: 20.11 ft at 2:20AM Apr 25, 2019Observed: 20.12 ft at 2:30AM Apr 25, 2019Observed: 20.11 ft at 2:40AM Apr 25, 2019Observed: 20.12 ft at 2:50AM Apr 25, 2019Observed: 20.12 ft at 3:00AM Apr 25, 2019Forecast: 20 ft 7:00AM Apr 25, 2019Forecast: 19.9 ft 1:00PM Apr 25, 2019Forecast: 19.8 ft 7:00PM Apr 25, 2019Forecast: 19.7 ft 1:00AM Apr 26, 2019Forecast: 19.6 ft 7:00AM Apr 26, 2019Forecast: 19.6 ft 1:00PM Apr 26, 2019Forecast: 19.6 ft 7:00PM Apr 26, 2019Forecast: 19.6 ft 1:00AM Apr 27, 2019Forecast: 19.6 ft 7:00AM Apr 27, 2019Forecast: 19.6 ft 1:00PM Apr 27, 2019Forecast: 19.6 ft 7:00PM Apr 27, 2019Forecast: 19.6 ft 1:00AM Apr 28, 2019Forecast: 19.6 ft 7:00AM Apr 28, 2019Forecast: 19.7 ft 1:00PM Apr 28, 2019Forecast: 19.8 ft 7:00PM Apr 28, 2019Forecast: 19.9 ft 1:00AM Apr 29, 2019Forecast: 20 ft 7:00AM Apr 29, 2019Forecast: 20.1 ft 1:00PM Apr 29, 2019Forecast: 20.2 ft 7:00PM Apr 29, 2019Forecast: 20.3 ft 1:00AM Apr 30, 2019Forecast: 20.4 ft 7:00AM Apr 30, 2019Forecast: 20.6 ft 1:00PM Apr 30, 2019Forecast: 20.7 ft 7:00PM Apr 30, 2019Forecast: 20.8 ft 1:00AM May 01, 2019Forecast: 21 ft 7:00AM May 01, 2019Forecast: 21.1 ft 1:00PM May 01, 2019Forecast: 21.2 ft 7:00PM May 01, 2019Forecast: 21.2 ft 1:00AM May 02, 2019Forecast: 21.3 ft 7:00AM May 02, 2019Highest Forecast: 21.4 ft 1:00PM May 02, 2019Highest Forecast: 21.4 ft 7:00PM May 02, 2019Highest Forecast: 21.4 ft 1:00AM May 03, 2019Highest Forecast: 21.4 ft 7:00AM May 03, 2019Highest Forecast: 21.4 ft 1:00PM May 03, 2019Highest Forecast: 21.4 ft 7:00PM May 03, 2019Highest Forecast: 21.4 ft 1:00AM May 04, 2019Forecast: 21.3 ft 7:00AM May 04, 2019Forecast: 21.3 ft 1:00PM May 04, 2019Forecast: 21.2 ft 7:00PM May 04, 2019Forecast: 21.2 ft 1:00AM May 05, 2019Forecast: 21.1 ft 7:00AM May 05, 2019Forecast: 21 ft 1:00PM May 05, 2019Forecast: 20.9 ft 7:00PM May 05, 2019Forecast: 20.8 ft 1:00AM May 06, 2019Forecast: 20.7 ft 7:00AM May 06, 2019Forecast: 20.6 ft 1:00PM May 06, 2019Forecast: 20.5 ft 7:00PM May 06, 2019Forecast: 20.4 ft 1:00AM May 07, 2019Forecast: 20.3 ft 7:00AM May 07, 2019Forecast: 20.2 ft 1:00PM May 07, 2019Forecast: 20.1 ft 7:00PM May 07, 2019Forecast: 20 ft 1:00AM May 08, 2019Forecast: 19.9 ft 7:00AM May 08, 2019Forecast: 19.7 ft 1:00PM May 08, 2019Forecast: 19.6 ft 7:00PM May 08, 2019QLDI2(plotting HTIRG) Graph Created (3:38AM Apr 25, 2019)ObservedForecast (issued 9:15PM Apr 24)Latest observed value: 20.12 ft at 3:00 AM CDT 25-Apr-2019. Flood Stage is 17 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
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 24 hours into the future from the forecast issuance time.

NOTE: For the latest navigation status update from the U.S. Army Corps of Engineers-St. Louis District, click here.

NOTE: Forecasts for the Mississippi River at Quincy Lock and Dam 21 are issued routinely year-round.

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Upstream Gauge - at Quincy Upstream Gauge Downstream Gauge Downstream Gauge - at Hannibal
Flood Categories (in feet)
Major Flood Stage: 25
Moderate Flood Stage: 21
Flood Stage: 17
Action Stage: 15
Low Stage (in feet): -9999

Historic Crests
(1) 31.30 ft on 07/13/1993
(2) 29.58 ft on 06/18/2008
(3) 27.70 ft on 04/25/1973
(4) 27.24 ft on 04/21/2013
(5) 26.55 ft on 05/16/2001
(6) 26.15 ft on 07/08/2014
(7) 24.93 ft on 03/31/2019 (P)
(8) 24.86 ft on 10/04/1986
(9) 24.74 ft on 06/01/2013
(10) 24.05 ft on 05/29/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 24.93 ft on 03/31/2019 (P)
(2) 23.96 ft on 10/12/2018
(3) 19.62 ft on 09/09/2018
(4) 18.47 ft on 07/05/2018
(5) 18.90 ft on 05/16/2018
(6) 18.52 ft on 06/03/2017
(7) 19.33 ft on 05/02/2017
(8) 17.23 ft on 04/07/2017
(9) 18.86 ft on 10/07/2016
(10) 21.08 ft on 12/29/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -3.40 ft on 12/14/1936
(2) -3.00 ft on 12/26/1933
(3) -2.30 ft on 12/10/1910
(4) -2.20 ft on 01/17/1938
(5) -1.60 ft on 12/23/1914
Show More Low Water Records

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

Zoom Level:14
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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
140000 At this approximate discharge, the Corps will raise the gates out of the water, creating "open river" conditions.
26.9 Missouri Highway 168 east of Palmyra near the BASF plant closes near this height.
25.7 At this height, the lock wall is inundated.
25 Quincy Waterworks inundated.
21.9 Near this level, the lock is closed to navigation. This level will vary with circumstance.
17 Flood Stage: Minor flooding begins.
14 Unprotected bottomlands flood.
12.3 This is the upper limit of the target pool level at Lock and Dam 21.
12.2 This is the target pool level for navigation at Lock & Dam 21.
12 At some point between 11.6 to 12.1 feet, the Corps will lift all gates out of the river creating "open river" conditions, corresponding to an approximate discharge of 140,000 cfs.
11.8 This is the lower limit of the target pool level at Lock & Dam 21.
Photos
(1) Quincy Lock and Dam 21 pool on 19 June 2008 with a pool reading of 27.48 ft.
(2) Quincy Lock and Dam 21 lock house on 19 June 2008 at a tailwater of 26.59 ft.
(3) Quincy Lock and Dam pool gages on 19 June 2008 (HP=27.48, HT=26.59)
(4) Quincy Lock debris in pool on 19 June 2008 (HP=27.48, HT=26.59)
(5) Quincy Lock and Dam 21 pool on 19 June 2008 (HT=26.59 ft., HP=27.48 ft.)
(6) Cropland flooding west of Illinois Highway 57 on June 25, 2010 at a stage of 21.06 ft.
(7) Aerial View
(8) Upstream View looking north toward Quincy
(9) Pool View looking west toward Missouri
(10) Downstream View
(11) Tailwater Overview looking northwest
(12) Tailwater View looking west toward Missouri
About This Location Collapse

Latitude: 39.903889° N, Longitude: 91.429167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 17 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 457.8 ft 474.8 ft Datum of 1912
Additional Information Collapse
How low could the river get?
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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
St. Louis Weather Forecast Office
12 Missouri Research Park Drive
St. Charles, MO 63304
(636) 441-8467
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Page last modified: 1-Mar-2019 12:34 AM
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