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Hydrograph River at a Glance Download
Mississippi River at Quincy Lock and Dam 21 Tailwater (ft)Flow (kcfs)Observed: 13.98 ft at 2:10AM Jul 19, 2019Observed: 13.94 ft at 2:20AM Jul 19, 2019Highest Observation: 13.99 ft at 2:30AM Jul 19, 2019Observed: 13.95 ft at 2:40AM Jul 19, 2019Observed: 13.94 ft at 2:50AM Jul 19, 2019Observed: 13.94 ft at 3:00AM Jul 19, 2019Observed: 13.93 ft at 3:10AM Jul 19, 2019Observed: 13.93 ft at 3:20AM Jul 19, 2019Observed: 13.92 ft at 3:30AM Jul 19, 2019Observed: 13.91 ft at 3:40AM Jul 19, 2019Observed: 13.88 ft at 3:50AM Jul 19, 2019Observed: 13.9 ft at 4:00AM Jul 19, 2019Observed: 13.9 ft at 4:10AM Jul 19, 2019Observed: 13.88 ft at 4:20AM Jul 19, 2019Observed: 13.88 ft at 4:30AM Jul 19, 2019Observed: 13.87 ft at 4:40AM Jul 19, 2019Observed: 13.88 ft at 4:50AM Jul 19, 2019Observed: 13.89 ft at 5:00AM Jul 19, 2019Observed: 13.85 ft at 5:10AM Jul 19, 2019Observed: 13.85 ft at 5:20AM Jul 19, 2019Observed: 13.87 ft at 5:30AM Jul 19, 2019Observed: 13.89 ft at 5:40AM Jul 19, 2019Observed: 13.86 ft at 5:50AM Jul 19, 2019Observed: 13.87 ft at 6:00AM Jul 19, 2019Observed: 13.96 ft at 6:10AM Jul 19, 2019Observed: 13.83 ft at 6:20AM Jul 19, 2019Observed: 13.82 ft at 6:30AM Jul 19, 2019Observed: 13.83 ft at 6:40AM Jul 19, 2019Observed: 13.83 ft at 6:50AM Jul 19, 2019Observed: 13.81 ft at 7:00AM Jul 19, 2019Observed: 13.8 ft at 7:10AM Jul 19, 2019Observed: 13.78 ft at 7:20AM Jul 19, 2019Observed: 13.83 ft at 7:30AM Jul 19, 2019Observed: 13.82 ft at 7:40AM Jul 19, 2019Observed: 13.81 ft at 7:50AM Jul 19, 2019Observed: 13.8 ft at 8:00AM Jul 19, 2019Observed: 13.8 ft at 8:10AM Jul 19, 2019Observed: 13.78 ft at 8:20AM Jul 19, 2019Observed: 13.78 ft at 8:30AM Jul 19, 2019Observed: 13.76 ft at 8:40AM Jul 19, 2019Observed: 13.8 ft at 8:50AM Jul 19, 2019Observed: 13.79 ft at 9:00AM Jul 19, 2019Observed: 13.73 ft at 9:40AM Jul 19, 2019Observed: 13.76 ft at 9:50AM Jul 19, 2019Observed: 13.75 ft at 10:00AM Jul 19, 2019Observed: 13.74 ft at 10:10AM Jul 19, 2019Observed: 13.75 ft at 10:20AM Jul 19, 2019Observed: 13.73 ft at 10:30AM Jul 19, 2019Observed: 13.72 ft at 10:40AM Jul 19, 2019Observed: 13.76 ft at 10:50AM Jul 19, 2019Observed: 13.72 ft at 11:00AM Jul 19, 2019Observed: 13.71 ft at 11:10AM Jul 19, 2019Observed: 13.73 ft at 11:20AM Jul 19, 2019Observed: 13.69 ft at 11:30AM Jul 19, 2019Observed: 13.67 ft at 11:40AM Jul 19, 2019Observed: 13.71 ft at 11:50AM Jul 19, 2019Observed: 13.71 ft at 12:00PM Jul 19, 2019Observed: 13.74 ft at 12:10PM Jul 19, 2019Observed: 13.68 ft at 12:20PM Jul 19, 2019Observed: 13.68 ft at 12:30PM Jul 19, 2019Observed: 13.68 ft at 12:40PM Jul 19, 2019Observed: 13.66 ft at 12:50PM Jul 19, 2019Observed: 13.64 ft at 1:00PM Jul 19, 2019Observed: 13.64 ft at 1:10PM Jul 19, 2019Observed: 13.59 ft at 1:20PM Jul 19, 2019Observed: 13.62 ft at 1:30PM Jul 19, 2019Observed: 13.65 ft at 1:40PM Jul 19, 2019Observed: 13.66 ft at 1:50PM Jul 19, 2019Observed: 13.62 ft at 2:00PM Jul 19, 2019Observed: 13.61 ft at 2:10PM Jul 19, 2019Observed: 13.63 ft at 2:20PM Jul 19, 2019Observed: 13.6 ft at 2:30PM Jul 19, 2019Observed: 13.61 ft at 2:40PM Jul 19, 2019Observed: 13.59 ft at 2:50PM Jul 19, 2019Observed: 13.58 ft at 3:00PM Jul 19, 2019Observed: 13.57 ft at 3:10PM Jul 19, 2019Observed: 13.57 ft at 3:20PM Jul 19, 2019Observed: 13.59 ft at 3:30PM Jul 19, 2019Observed: 13.55 ft at 3:40PM Jul 19, 2019Observed: 13.56 ft at 3:50PM Jul 19, 2019Observed: 13.55 ft at 4:00PM Jul 19, 2019Observed: 13.56 ft at 4:10PM Jul 19, 2019Observed: 13.56 ft at 4:20PM Jul 19, 2019Observed: 13.54 ft at 4:30PM Jul 19, 2019Observed: 13.55 ft at 4:40PM Jul 19, 2019Observed: 13.54 ft at 4:50PM Jul 19, 2019Observed: 13.54 ft at 5:00PM Jul 19, 2019Observed: 13.53 ft at 5:10PM Jul 19, 2019Observed: 13.54 ft at 5:20PM Jul 19, 2019Observed: 13.51 ft at 5:30PM Jul 19, 2019Observed: 13.5 ft at 5:40PM Jul 19, 2019Observed: 13.5 ft at 5:50PM Jul 19, 2019Observed: 13.48 ft at 6:00PM Jul 19, 2019Observed: 13.51 ft at 6:10PM Jul 19, 2019Observed: 13.47 ft at 6:20PM Jul 19, 2019Observed: 13.45 ft at 6:30PM Jul 19, 2019Observed: 13.45 ft at 6:40PM Jul 19, 2019Observed: 13.43 ft at 6:50PM Jul 19, 2019Observed: 13.45 ft at 7:00PM Jul 19, 2019Observed: 13.44 ft at 7:10PM Jul 19, 2019Observed: 13.45 ft at 7:20PM Jul 19, 2019Observed: 13.42 ft at 7:30PM Jul 19, 2019Observed: 13.44 ft at 7:40PM Jul 19, 2019Observed: 13.4 ft at 7:50PM Jul 19, 2019Observed: 13.4 ft at 8:00PM Jul 19, 2019Observed: 13.42 ft at 8:10PM Jul 19, 2019Observed: 13.42 ft at 8:20PM Jul 19, 2019Observed: 13.37 ft at 8:30PM Jul 19, 2019Observed: 13.39 ft at 8:40PM Jul 19, 2019Observed: 13.38 ft at 8:50PM Jul 19, 2019Observed: 13.38 ft at 9:00PM Jul 19, 2019Observed: 13.38 ft at 9:10PM Jul 19, 2019Observed: 13.38 ft at 9:20PM Jul 19, 2019Observed: 13.34 ft at 9:30PM Jul 19, 2019Observed: 13.36 ft at 9:40PM Jul 19, 2019Observed: 13.36 ft at 9:50PM Jul 19, 2019Observed: 13.35 ft at 10:00PM Jul 19, 2019Observed: 13.34 ft at 10:10PM Jul 19, 2019Observed: 13.33 ft at 10:20PM Jul 19, 2019Observed: 13.37 ft at 10:30PM Jul 19, 2019Observed: 13.35 ft at 10:40PM Jul 19, 2019Observed: 13.32 ft at 10:50PM Jul 19, 2019Observed: 13.36 ft at 11:00PM Jul 19, 2019Observed: 13.33 ft at 11:10PM Jul 19, 2019Observed: 13.34 ft at 11:20PM Jul 19, 2019Observed: 13.36 ft at 11:30PM Jul 19, 2019Observed: 13.31 ft at 11:40PM Jul 19, 2019Observed: 13.31 ft at 11:50PM Jul 19, 2019Observed: 13.33 ft at 12:00AM Jul 20, 2019Observed: 13.27 ft at 12:10AM Jul 20, 2019Observed: 13.27 ft at 12:20AM Jul 20, 2019Observed: 13.3 ft at 12:30AM Jul 20, 2019Observed: 13.29 ft at 12:40AM Jul 20, 2019Observed: 13.29 ft at 12:50AM Jul 20, 2019Observed: 13.28 ft at 1:00AM Jul 20, 2019Observed: 13.27 ft at 1:10AM Jul 20, 2019Observed: 13.28 ft at 1:20AM Jul 20, 2019Observed: 13.26 ft at 1:30AM Jul 20, 2019Observed: 13.25 ft at 1:40AM Jul 20, 2019Observed: 13.25 ft at 1:50AM Jul 20, 2019Observed: 13.26 ft at 2:00AM Jul 20, 2019Observed: 13.24 ft at 2:10AM Jul 20, 2019Observed: 13.22 ft at 2:20AM Jul 20, 2019Observed: 13.27 ft at 2:30AM Jul 20, 2019Observed: 13.22 ft at 2:40AM Jul 20, 2019Observed: 13.2 ft at 2:50AM Jul 20, 2019Observed: 13.22 ft at 3:00AM Jul 20, 2019Observed: 13.23 ft at 3:10AM Jul 20, 2019Observed: 13.19 ft at 3:20AM Jul 20, 2019Observed: 13.2 ft at 3:30AM Jul 20, 2019Observed: 13.15 ft at 3:40AM Jul 20, 2019Observed: 13.18 ft at 3:50AM Jul 20, 2019Observed: 13.19 ft at 4:00AM Jul 20, 2019Observed: 13.18 ft at 4:10AM Jul 20, 2019Observed: 13.19 ft at 4:20AM Jul 20, 2019Observed: 13.15 ft at 4:30AM Jul 20, 2019Observed: 13.15 ft at 4:40AM Jul 20, 2019Observed: 13.17 ft at 4:50AM Jul 20, 2019Observed: 13.17 ft at 5:00AM Jul 20, 2019Observed: 13.12 ft at 5:10AM Jul 20, 2019Observed: 13.16 ft at 5:20AM Jul 20, 2019Observed: 13.12 ft at 5:30AM Jul 20, 2019Observed: 13.14 ft at 5:40AM Jul 20, 2019Observed: 13.17 ft at 5:50AM Jul 20, 2019Observed: 13.11 ft at 6:00AM Jul 20, 2019Observed: 13.13 ft at 6:10AM Jul 20, 2019Observed: 13.13 ft at 6:20AM Jul 20, 2019Observed: 13.12 ft at 6:30AM Jul 20, 2019Observed: 13.08 ft at 6:40AM Jul 20, 2019Observed: 13.1 ft at 6:50AM Jul 20, 2019Observed: 13.12 ft at 7:00AM Jul 20, 2019Observed: 13.12 ft at 7:10AM Jul 20, 2019Observed: 13.1 ft at 7:20AM Jul 20, 2019Observed: 13.11 ft at 7:30AM Jul 20, 2019Observed: 13.11 ft at 7:40AM Jul 20, 2019Observed: 13.09 ft at 7:50AM Jul 20, 2019Observed: 13.11 ft at 8:00AM Jul 20, 2019Observed: 13.03 ft at 8:10AM Jul 20, 2019Observed: 13.17 ft at 8:20AM Jul 20, 2019Observed: 13.1 ft at 8:30AM Jul 20, 2019Observed: 13.09 ft at 8:40AM Jul 20, 2019Observed: 13.11 ft at 8:50AM Jul 20, 2019Observed: 13.09 ft at 9:00AM Jul 20, 2019Observed: 13.05 ft at 9:10AM Jul 20, 2019Observed: 13.06 ft at 9:20AM Jul 20, 2019Observed: 13.08 ft at 9:30AM Jul 20, 2019Observed: 13.07 ft at 9:40AM Jul 20, 2019Observed: 13.08 ft at 9:50AM Jul 20, 2019Observed: 13.05 ft at 10:00AM Jul 20, 2019Observed: 13.06 ft at 10:10AM Jul 20, 2019Observed: 13.05 ft at 10:20AM Jul 20, 2019Observed: 13.07 ft at 10:30AM Jul 20, 2019Observed: 13.05 ft at 10:40AM Jul 20, 2019Observed: 13.07 ft at 10:50AM Jul 20, 2019Observed: 13.06 ft at 11:00AM Jul 20, 2019Observed: 13.05 ft at 11:10AM Jul 20, 2019Observed: 13.05 ft at 11:20AM Jul 20, 2019Observed: 13.05 ft at 11:30AM Jul 20, 2019Observed: 13.04 ft at 11:40AM Jul 20, 2019Observed: 13.04 ft at 11:50AM Jul 20, 2019Observed: 13.04 ft at 12:00PM Jul 20, 2019Observed: 13.04 ft at 12:10PM Jul 20, 2019Observed: 13.02 ft at 12:20PM Jul 20, 2019Observed: 13.02 ft at 12:30PM Jul 20, 2019Observed: 13.02 ft at 12:40PM Jul 20, 2019Observed: 13.01 ft at 12:50PM Jul 20, 2019Observed: 13 ft at 1:00PM Jul 20, 2019Observed: 13.01 ft at 1:10PM Jul 20, 2019Observed: 12.98 ft at 1:20PM Jul 20, 2019Observed: 12.98 ft at 1:30PM Jul 20, 2019Observed: 12.98 ft at 1:40PM Jul 20, 2019Observed: 12.97 ft at 1:50PM Jul 20, 2019Observed: 12.99 ft at 2:00PM Jul 20, 2019Observed: 12.95 ft at 2:10PM Jul 20, 2019Observed: 12.98 ft at 2:20PM Jul 20, 2019Observed: 12.96 ft at 2:30PM Jul 20, 2019Observed: 12.97 ft at 2:40PM Jul 20, 2019Observed: 12.94 ft at 2:50PM Jul 20, 2019Observed: 12.98 ft at 3:00PM Jul 20, 2019Observed: 12.95 ft at 3:10PM Jul 20, 2019Observed: 12.95 ft at 3:20PM Jul 20, 2019Observed: 12.94 ft at 3:30PM Jul 20, 2019Observed: 12.95 ft at 3:40PM Jul 20, 2019Observed: 12.93 ft at 3:50PM Jul 20, 2019Observed: 12.95 ft at 4:00PM Jul 20, 2019Observed: 12.94 ft at 4:10PM Jul 20, 2019Observed: 12.93 ft at 4:20PM Jul 20, 2019Observed: 12.92 ft at 4:30PM Jul 20, 2019Observed: 12.92 ft at 4:40PM Jul 20, 2019Observed: 12.92 ft at 4:50PM Jul 20, 2019Observed: 12.93 ft at 5:00PM Jul 20, 2019Observed: 12.91 ft at 5:10PM Jul 20, 2019Observed: 12.9 ft at 5:20PM Jul 20, 2019Observed: 12.91 ft at 5:30PM Jul 20, 2019Observed: 12.91 ft at 5:40PM Jul 20, 2019Observed: 12.89 ft at 5:50PM Jul 20, 2019Observed: 12.9 ft at 6:00PM Jul 20, 2019Observed: 12.91 ft at 6:10PM Jul 20, 2019Observed: 12.92 ft at 6:20PM Jul 20, 2019Observed: 12.92 ft at 6:30PM Jul 20, 2019Observed: 12.89 ft at 6:40PM Jul 20, 2019Observed: 12.89 ft at 6:50PM Jul 20, 2019Observed: 12.89 ft at 7:00PM Jul 20, 2019Observed: 12.89 ft at 7:10PM Jul 20, 2019Observed: 12.91 ft at 7:20PM Jul 20, 2019Observed: 12.88 ft at 7:30PM Jul 20, 2019Observed: 12.87 ft at 7:40PM Jul 20, 2019Observed: 12.9 ft at 7:50PM Jul 20, 2019Observed: 12.9 ft at 8:00PM Jul 20, 2019Observed: 12.86 ft at 8:10PM Jul 20, 2019Observed: 12.86 ft at 8:20PM Jul 20, 2019Observed: 12.87 ft at 8:30PM Jul 20, 2019Observed: 12.86 ft at 8:40PM Jul 20, 2019Observed: 12.86 ft at 8:50PM Jul 20, 2019Observed: 12.88 ft at 9:00PM Jul 20, 2019Observed: 12.86 ft at 9:10PM Jul 20, 2019Observed: 12.8 ft at 9:20PM Jul 20, 2019Observed: 12.85 ft at 9:30PM Jul 20, 2019Observed: 12.89 ft at 9:40PM Jul 20, 2019Observed: 12.9 ft at 9:50PM Jul 20, 2019Observed: 12.84 ft at 10:00PM Jul 20, 2019Observed: 12.83 ft at 10:10PM Jul 20, 2019Observed: 12.85 ft at 10:20PM Jul 20, 2019Observed: 12.89 ft at 10:30PM Jul 20, 2019Observed: 12.87 ft at 10:40PM Jul 20, 2019Observed: 12.88 ft at 10:50PM Jul 20, 2019Observed: 12.87 ft at 11:00PM Jul 20, 2019Observed: 12.87 ft at 11:10PM Jul 20, 2019Observed: 12.87 ft at 11:20PM Jul 20, 2019Observed: 12.86 ft at 11:30PM Jul 20, 2019Observed: 12.88 ft at 11:40PM Jul 20, 2019Observed: 12.89 ft at 11:50PM Jul 20, 2019Observed: 12.85 ft at 12:00AM Jul 21, 2019Observed: 12.84 ft at 12:10AM Jul 21, 2019Observed: 12.86 ft at 12:20AM Jul 21, 2019Observed: 12.88 ft at 12:30AM Jul 21, 2019Observed: 12.84 ft at 12:40AM Jul 21, 2019Observed: 12.89 ft at 12:50AM Jul 21, 2019Observed: 12.88 ft at 1:00AM Jul 21, 2019Observed: 12.88 ft at 1:10AM Jul 21, 2019Observed: 12.86 ft at 1:20AM Jul 21, 2019Observed: 12.84 ft at 1:30AM Jul 21, 2019Observed: 12.84 ft at 1:40AM Jul 21, 2019Observed: 12.82 ft at 1:50AM Jul 21, 2019Observed: 12.85 ft at 2:00AM Jul 21, 2019Observed: 12.84 ft at 2:10AM Jul 21, 2019Observed: 12.85 ft at 2:20AM Jul 21, 2019Observed: 12.8 ft at 2:30AM Jul 21, 2019Observed: 12.82 ft at 2:40AM Jul 21, 2019Observed: 12.83 ft at 2:50AM Jul 21, 2019Observed: 12.84 ft at 3:00AM Jul 21, 2019Observed: 12.86 ft at 3:10AM Jul 21, 2019Observed: 12.8 ft at 3:20AM Jul 21, 2019Observed: 12.81 ft at 3:30AM Jul 21, 2019Observed: 12.86 ft at 3:40AM Jul 21, 2019Observed: 12.86 ft at 3:50AM Jul 21, 2019Observed: 12.79 ft at 4:00AM Jul 21, 2019Observed: 12.82 ft at 4:10AM Jul 21, 2019Observed: 12.78 ft at 4:20AM Jul 21, 2019Observed: 12.79 ft at 4:30AM Jul 21, 2019Observed: 12.83 ft at 4:40AM Jul 21, 2019Observed: 12.81 ft at 4:50AM Jul 21, 2019Observed: 12.82 ft at 5:00AM Jul 21, 2019Observed: 12.8 ft at 5:10AM Jul 21, 2019Observed: 12.81 ft at 5:20AM Jul 21, 2019Observed: 12.83 ft at 5:30AM Jul 21, 2019Observed: 12.79 ft at 5:40AM Jul 21, 2019Observed: 12.82 ft at 5:50AM Jul 21, 2019Observed: 12.8 ft at 6:00AM Jul 21, 2019Observed: 12.8 ft at 6:10AM Jul 21, 2019Observed: 12.81 ft at 6:20AM Jul 21, 2019Observed: 12.78 ft at 6:30AM Jul 21, 2019Observed: 12.81 ft at 6:40AM Jul 21, 2019Observed: 12.78 ft at 6:50AM Jul 21, 2019Observed: 12.78 ft at 7:00AM Jul 21, 2019Observed: 12.8 ft at 7:10AM Jul 21, 2019Observed: 12.79 ft at 7:20AM Jul 21, 2019Observed: 12.78 ft at 7:30AM Jul 21, 2019Observed: 12.81 ft at 7:40AM Jul 21, 2019Observed: 12.79 ft at 7:50AM Jul 21, 2019Observed: 12.78 ft at 8:00AM Jul 21, 2019Observed: 12.77 ft at 8:10AM Jul 21, 2019Observed: 12.79 ft at 8:20AM Jul 21, 2019Observed: 12.77 ft at 8:30AM Jul 21, 2019Observed: 12.8 ft at 8:40AM Jul 21, 2019Observed: 12.77 ft at 8:50AM Jul 21, 2019Observed: 12.78 ft at 9:00AM Jul 21, 2019Observed: 12.76 ft at 9:10AM Jul 21, 2019Observed: 12.77 ft at 9:20AM Jul 21, 2019Observed: 12.76 ft at 9:30AM Jul 21, 2019Observed: 12.77 ft at 9:40AM Jul 21, 2019Observed: 12.78 ft at 9:50AM Jul 21, 2019Observed: 12.75 ft at 10:00AM Jul 21, 2019Observed: 12.76 ft at 10:10AM Jul 21, 2019Observed: 12.76 ft at 10:20AM Jul 21, 2019Observed: 12.78 ft at 10:30AM Jul 21, 2019Observed: 12.79 ft at 10:40AM Jul 21, 2019Observed: 12.77 ft at 10:50AM Jul 21, 2019Observed: 12.74 ft at 11:00AM Jul 21, 2019Observed: 12.75 ft at 11:10AM Jul 21, 2019Observed: 12.76 ft at 11:20AM Jul 21, 2019Observed: 12.76 ft at 11:30AM Jul 21, 2019Observed: 12.74 ft at 11:40AM Jul 21, 2019Observed: 12.76 ft at 11:50AM Jul 21, 2019Observed: 12.76 ft at 12:00PM Jul 21, 2019Observed: 12.77 ft at 12:10PM Jul 21, 2019Observed: 12.77 ft at 12:20PM Jul 21, 2019Observed: 12.74 ft at 12:30PM Jul 21, 2019Observed: 12.74 ft at 12:40PM Jul 21, 2019Observed: 12.77 ft at 12:50PM Jul 21, 2019Observed: 12.74 ft at 1:00PM Jul 21, 2019Observed: 12.74 ft at 1:10PM Jul 21, 2019Observed: 12.73 ft at 1:20PM Jul 21, 2019Observed: 12.74 ft at 1:30PM Jul 21, 2019Observed: 12.75 ft at 1:40PM Jul 21, 2019Observed: 12.73 ft at 1:50PM Jul 21, 2019Observed: 12.75 ft at 2:00PM Jul 21, 2019Observed: 12.74 ft at 2:10PM Jul 21, 2019Observed: 12.69 ft at 2:20PM Jul 21, 2019Observed: 12.72 ft at 2:30PM Jul 21, 2019Observed: 12.76 ft at 2:40PM Jul 21, 2019Observed: 12.74 ft at 2:50PM Jul 21, 2019Observed: 12.73 ft at 3:00PM Jul 21, 2019Observed: 12.72 ft at 3:10PM Jul 21, 2019Observed: 12.71 ft at 3:20PM Jul 21, 2019Observed: 12.74 ft at 3:30PM Jul 21, 2019Observed: 12.71 ft at 3:40PM Jul 21, 2019Observed: 12.72 ft at 3:50PM Jul 21, 2019Observed: 12.71 ft at 4:00PM Jul 21, 2019Observed: 12.71 ft at 4:10PM Jul 21, 2019Observed: 12.68 ft at 4:20PM Jul 21, 2019Observed: 12.71 ft at 4:30PM Jul 21, 2019Observed: 12.71 ft at 4:40PM Jul 21, 2019Observed: 12.71 ft at 4:50PM Jul 21, 2019Observed: 12.73 ft at 5:00PM Jul 21, 2019Observed: 12.71 ft at 5:10PM Jul 21, 2019Observed: 12.67 ft at 5:20PM Jul 21, 2019Observed: 12.68 ft at 5:30PM Jul 21, 2019Observed: 12.68 ft at 5:40PM Jul 21, 2019Observed: 12.72 ft at 5:50PM Jul 21, 2019Observed: 12.67 ft at 6:00PM Jul 21, 2019Observed: 12.68 ft at 6:10PM Jul 21, 2019Observed: 12.68 ft at 6:20PM Jul 21, 2019Observed: 12.67 ft at 6:30PM Jul 21, 2019Observed: 12.67 ft at 6:40PM Jul 21, 2019Observed: 12.67 ft at 6:50PM Jul 21, 2019Observed: 12.68 ft at 7:00PM Jul 21, 2019Observed: 12.68 ft at 7:10PM Jul 21, 2019Observed: 12.7 ft at 7:20PM Jul 21, 2019Observed: 12.65 ft at 7:30PM Jul 21, 2019Observed: 12.65 ft at 7:40PM Jul 21, 2019Observed: 12.66 ft at 7:50PM Jul 21, 2019Observed: 12.68 ft at 8:00PM Jul 21, 2019Observed: 12.67 ft at 8:10PM Jul 21, 2019Observed: 12.68 ft at 8:20PM Jul 21, 2019Observed: 12.65 ft at 8:30PM Jul 21, 2019Observed: 12.65 ft at 8:40PM Jul 21, 2019Observed: 12.68 ft at 8:50PM Jul 21, 2019Observed: 12.68 ft at 9:00PM Jul 21, 2019Observed: 12.65 ft at 9:10PM Jul 21, 2019Observed: 12.67 ft at 9:20PM Jul 21, 2019Observed: 12.69 ft at 9:30PM Jul 21, 2019Observed: 12.67 ft at 9:40PM Jul 21, 2019Observed: 12.66 ft at 9:50PM Jul 21, 2019Observed: 12.71 ft at 10:00PM Jul 21, 2019Observed: 12.67 ft at 10:10PM Jul 21, 2019Observed: 12.68 ft at 10:20PM Jul 21, 2019Observed: 12.7 ft at 10:30PM Jul 21, 2019Observed: 12.72 ft at 10:40PM Jul 21, 2019Observed: 12.69 ft at 10:50PM Jul 21, 2019Observed: 12.64 ft at 11:00PM Jul 21, 2019Observed: 12.71 ft at 11:10PM Jul 21, 2019Observed: 12.7 ft at 11:20PM Jul 21, 2019Observed: 12.69 ft at 11:30PM Jul 21, 2019Observed: 12.71 ft at 11:40PM Jul 21, 2019Observed: 12.67 ft at 11:50PM Jul 21, 2019Observed: 12.68 ft at 12:00AM Jul 22, 2019Observed: 12.69 ft at 12:10AM Jul 22, 2019Observed: 12.66 ft at 12:20AM Jul 22, 2019Observed: 12.67 ft at 12:30AM Jul 22, 2019Observed: 12.69 ft at 12:40AM Jul 22, 2019Observed: 12.64 ft at 12:50AM Jul 22, 2019Observed: 12.7 ft at 1:00AM Jul 22, 2019Observed: 12.69 ft at 1:10AM Jul 22, 2019Observed: 12.71 ft at 1:20AM Jul 22, 2019Observed: 12.71 ft at 1:30AM Jul 22, 2019Observed: 12.73 ft at 1:40AM Jul 22, 2019Observed: 12.72 ft at 1:50AM Jul 22, 2019Observed: 12.7 ft at 2:00AM Jul 22, 2019Observed: 12.75 ft at 2:10AM Jul 22, 2019Observed: 12.74 ft at 2:20AM Jul 22, 2019Observed: 12.73 ft at 2:30AM Jul 22, 2019Observed: 12.77 ft at 2:40AM Jul 22, 2019Observed: 12.71 ft at 2:50AM Jul 22, 2019Observed: 12.75 ft at 3:00AM Jul 22, 2019Observed: 12.73 ft at 3:10AM Jul 22, 2019Observed: 12.76 ft at 3:20AM Jul 22, 2019Observed: 12.72 ft at 3:30AM Jul 22, 2019Observed: 12.75 ft at 3:40AM Jul 22, 2019Observed: 12.8 ft at 3:50AM Jul 22, 2019Observed: 12.73 ft at 4:00AM Jul 22, 2019Observed: 12.77 ft at 4:10AM Jul 22, 2019Observed: 12.76 ft at 4:20AM Jul 22, 2019Observed: 12.76 ft at 4:30AM Jul 22, 2019Observed: 12.77 ft at 4:40AM Jul 22, 2019Observed: 12.76 ft at 4:50AM Jul 22, 2019Observed: 12.75 ft at 5:00AM Jul 22, 2019Observed: 12.76 ft at 5:10AM Jul 22, 2019Observed: 12.75 ft at 5:20AM Jul 22, 2019Observed: 12.73 ft at 5:30AM Jul 22, 2019Observed: 12.75 ft at 5:40AM Jul 22, 2019Observed: 12.73 ft at 5:50AM Jul 22, 2019Observed: 12.74 ft at 6:00AM Jul 22, 2019Observed: 12.77 ft at 6:10AM Jul 22, 2019Observed: 12.75 ft at 6:20AM Jul 22, 2019Observed: 12.76 ft at 6:30AM Jul 22, 2019Observed: 12.76 ft at 6:40AM Jul 22, 2019Observed: 12.76 ft at 6:50AM Jul 22, 2019Observed: 12.74 ft at 7:00AM Jul 22, 2019Observed: 12.76 ft at 7:10AM Jul 22, 2019Observed: 12.74 ft at 7:20AM Jul 22, 2019Observed: 12.76 ft at 7:30AM Jul 22, 2019Observed: 12.75 ft at 7:40AM Jul 22, 2019Observed: 12.78 ft at 7:50AM Jul 22, 2019Observed: 12.73 ft at 8:00AM Jul 22, 2019Observed: 12.72 ft at 8:10AM Jul 22, 2019Observed: 12.74 ft at 8:20AM Jul 22, 2019Observed: 12.71 ft at 8:30AM Jul 22, 2019Observed: 12.76 ft at 8:40AM Jul 22, 2019Observed: 12.75 ft at 8:50AM Jul 22, 2019Observed: 12.74 ft at 9:00AM Jul 22, 2019Observed: 12.73 ft at 9:10AM Jul 22, 2019Observed: 12.75 ft at 9:20AM Jul 22, 2019Observed: 12.7 ft at 9:30AM Jul 22, 2019Observed: 12.74 ft at 9:40AM Jul 22, 2019Observed: 12.74 ft at 9:50AM Jul 22, 2019Observed: 12.73 ft at 10:00AM Jul 22, 2019Observed: 12.7 ft at 10:10AM Jul 22, 2019Observed: 12.72 ft at 10:20AM Jul 22, 2019Observed: 12.71 ft at 10:30AM Jul 22, 2019Observed: 12.71 ft at 10:40AM Jul 22, 2019Observed: 12.75 ft at 10:50AM Jul 22, 2019Observed: 12.72 ft at 11:00AM Jul 22, 2019Observed: 12.75 ft at 11:10AM Jul 22, 2019Observed: 12.74 ft at 11:20AM Jul 22, 2019Observed: 12.72 ft at 11:30AM Jul 22, 2019Observed: 12.73 ft at 11:40AM Jul 22, 2019Observed: 12.73 ft at 11:50AM Jul 22, 2019Observed: 12.73 ft at 12:00PM Jul 22, 2019Observed: 12.71 ft at 12:10PM Jul 22, 2019Observed: 12.71 ft at 12:20PM Jul 22, 2019Observed: 12.7 ft at 12:30PM Jul 22, 2019Observed: 12.69 ft at 12:40PM Jul 22, 2019Observed: 12.68 ft at 12:50PM Jul 22, 2019Observed: 12.7 ft at 1:00PM Jul 22, 2019Observed: 12.68 ft at 1:10PM Jul 22, 2019Observed: 12.69 ft at 1:20PM Jul 22, 2019Observed: 12.66 ft at 1:30PM Jul 22, 2019Observed: 12.66 ft at 1:40PM Jul 22, 2019Observed: 12.68 ft at 1:50PM Jul 22, 2019Observed: 12.68 ft at 2:00PM Jul 22, 2019Observed: 12.69 ft at 2:10PM Jul 22, 2019Observed: 12.69 ft at 2:20PM Jul 22, 2019Observed: 12.68 ft at 2:30PM Jul 22, 2019Observed: 12.66 ft at 2:40PM Jul 22, 2019Observed: 12.65 ft at 2:50PM Jul 22, 2019Observed: 12.69 ft at 3:00PM Jul 22, 2019Observed: 12.66 ft at 3:10PM Jul 22, 2019Observed: 12.65 ft at 3:20PM Jul 22, 2019Observed: 12.67 ft at 3:30PM Jul 22, 2019Observed: 12.66 ft at 3:40PM Jul 22, 2019Observed: 12.69 ft at 3:50PM Jul 22, 2019Observed: 12.66 ft at 4:00PM Jul 22, 2019Observed: 12.67 ft at 4:10PM Jul 22, 2019Observed: 12.66 ft at 4:20PM Jul 22, 2019Observed: 12.64 ft at 4:30PM Jul 22, 2019Observed: 12.65 ft at 4:40PM Jul 22, 2019Observed: 12.68 ft at 4:50PM Jul 22, 2019Observed: 12.65 ft at 5:00PM Jul 22, 2019Observed: 12.65 ft at 5:10PM Jul 22, 2019Observed: 12.66 ft at 5:20PM Jul 22, 2019Observed: 12.68 ft at 5:30PM Jul 22, 2019Observed: 12.65 ft at 5:40PM Jul 22, 2019Observed: 12.68 ft at 5:50PM Jul 22, 2019Observed: 12.58 ft at 6:00PM Jul 22, 2019Observed: 12.63 ft at 6:10PM Jul 22, 2019Observed: 12.65 ft at 6:20PM Jul 22, 2019Observed: 12.64 ft at 6:30PM Jul 22, 2019Observed: 12.62 ft at 6:40PM Jul 22, 2019Observed: 12.63 ft at 6:50PM Jul 22, 2019Observed: 12.63 ft at 7:00PM Jul 22, 2019Observed: 12.65 ft at 7:10PM Jul 22, 2019Observed: 12.65 ft at 7:20PM Jul 22, 2019Observed: 12.64 ft at 7:30PM Jul 22, 2019Observed: 12.63 ft at 7:40PM Jul 22, 2019Observed: 12.67 ft at 7:50PM Jul 22, 2019Observed: 12.6 ft at 8:00PM Jul 22, 2019Observed: 12.65 ft at 8:10PM Jul 22, 2019Observed: 12.84 ft at 8:20PM Jul 22, 2019Observed: 12.66 ft at 8:30PM Jul 22, 2019Observed: 12.65 ft at 8:40PM Jul 22, 2019Observed: 12.65 ft at 8:50PM Jul 22, 2019Observed: 12.64 ft at 9:00PM Jul 22, 2019Observed: 12.6 ft at 9:10PM Jul 22, 2019Observed: 12.64 ft at 9:20PM Jul 22, 2019Observed: 12.66 ft at 9:30PM Jul 22, 2019Observed: 12.65 ft at 9:40PM Jul 22, 2019Observed: 12.67 ft at 9:50PM Jul 22, 2019Observed: 12.68 ft at 10:00PM Jul 22, 2019Observed: 12.65 ft at 10:10PM Jul 22, 2019Observed: 12.57 ft at 10:20PM Jul 22, 2019Observed: 12.68 ft at 10:30PM Jul 22, 2019Observed: 12.63 ft at 10:40PM Jul 22, 2019Observed: 12.64 ft at 10:50PM Jul 22, 2019Observed: 12.63 ft at 11:00PM Jul 22, 2019Observed: 12.66 ft at 11:10PM Jul 22, 2019Observed: 12.63 ft at 11:20PM Jul 22, 2019Observed: 12.62 ft at 11:30PM Jul 22, 2019Observed: 12.64 ft at 11:40PM Jul 22, 2019Observed: 12.63 ft at 11:50PM Jul 22, 2019Observed: 12.61 ft at 12:00AM Jul 23, 2019Observed: 12.65 ft at 12:10AM Jul 23, 2019Observed: 12.66 ft at 12:20AM Jul 23, 2019Observed: 12.62 ft at 12:30AM Jul 23, 2019Observed: 12.66 ft at 12:40AM Jul 23, 2019Observed: 12.63 ft at 12:50AM Jul 23, 2019Observed: 12.6 ft at 1:00AM Jul 23, 2019Observed: 12.63 ft at 1:10AM Jul 23, 2019Observed: 12.62 ft at 1:20AM Jul 23, 2019Observed: 12.59 ft at 1:30AM Jul 23, 2019Observed: 12.62 ft at 1:40AM Jul 23, 2019Observed: 12.62 ft at 1:50AM Jul 23, 2019Observed: 12.63 ft at 2:00AM Jul 23, 2019Observed: 12.6 ft at 2:10AM Jul 23, 2019Observed: 12.62 ft at 2:20AM Jul 23, 2019Observed: 12.6 ft at 2:30AM Jul 23, 2019Observed: 12.64 ft at 2:40AM Jul 23, 2019Observed: 12.63 ft at 2:50AM Jul 23, 2019Observed: 12.59 ft at 3:00AM Jul 23, 2019Observed: 12.5 ft at 3:10AM Jul 23, 2019Observed: 12.64 ft at 3:20AM Jul 23, 2019Observed: 12.59 ft at 3:30AM Jul 23, 2019Observed: 12.58 ft at 3:40AM Jul 23, 2019Observed: 12.61 ft at 3:50AM Jul 23, 2019Observed: 12.57 ft at 4:00AM Jul 23, 2019Observed: 12.6 ft at 4:10AM Jul 23, 2019Observed: 12.62 ft at 4:20AM Jul 23, 2019Observed: 12.6 ft at 4:30AM Jul 23, 2019Observed: 12.6 ft at 4:40AM Jul 23, 2019Observed: 12.57 ft at 4:50AM Jul 23, 2019Observed: 12.59 ft at 5:00AM Jul 23, 2019Observed: 12.68 ft at 5:10AM Jul 23, 2019Observed: 12.59 ft at 5:20AM Jul 23, 2019Observed: 12.57 ft at 5:30AM Jul 23, 2019Observed: 12.6 ft at 5:40AM Jul 23, 2019Observed: 12.48 ft at 5:50AM Jul 23, 2019Observed: 12.59 ft at 6:00AM Jul 23, 2019Observed: 12.59 ft at 6:10AM Jul 23, 2019Observed: 12.57 ft at 6:20AM Jul 23, 2019Observed: 12.58 ft at 6:30AM Jul 23, 2019Observed: 12.56 ft at 6:40AM Jul 23, 2019Observed: 12.58 ft at 6:50AM Jul 23, 2019Observed: 12.56 ft at 7:00AM Jul 23, 2019Observed: 12.6 ft at 7:10AM Jul 23, 2019Observed: 12.57 ft at 7:20AM Jul 23, 2019Observed: 12.56 ft at 7:30AM Jul 23, 2019Observed: 12.55 ft at 7:40AM Jul 23, 2019Observed: 12.56 ft at 7:50AM Jul 23, 2019Observed: 12.56 ft at 8:00AM Jul 23, 2019Observed: 12.56 ft at 8:10AM Jul 23, 2019Observed: 12.57 ft at 8:20AM Jul 23, 2019Observed: 12.54 ft at 8:30AM Jul 23, 2019Observed: 12.53 ft at 8:40AM Jul 23, 2019Observed: 12.6 ft at 8:50AM Jul 23, 2019Observed: 12.54 ft at 9:00AM Jul 23, 2019Observed: 12.58 ft at 9:10AM Jul 23, 2019Observed: 12.54 ft at 9:20AM Jul 23, 2019Observed: 12.57 ft at 9:30AM Jul 23, 2019Observed: 12.6 ft at 9:40AM Jul 23, 2019Observed: 12.6 ft at 9:50AM Jul 23, 2019Observed: 12.54 ft at 10:00AM Jul 23, 2019Observed: 12.54 ft at 10:10AM Jul 23, 2019Observed: 12.57 ft at 10:20AM Jul 23, 2019Observed: 12.56 ft at 10:30AM Jul 23, 2019Observed: 12.58 ft at 10:40AM Jul 23, 2019Observed: 12.56 ft at 10:50AM Jul 23, 2019Observed: 12.57 ft at 11:00AM Jul 23, 2019Observed: 12.58 ft at 11:10AM Jul 23, 2019Observed: 12.56 ft at 11:20AM Jul 23, 2019Observed: 12.56 ft at 11:30AM Jul 23, 2019Observed: 12.54 ft at 11:40AM Jul 23, 2019Observed: 12.57 ft at 11:50AM Jul 23, 2019Observed: 12.54 ft at 12:00PM Jul 23, 2019Observed: 12.54 ft at 12:10PM Jul 23, 2019Observed: 12.56 ft at 12:20PM Jul 23, 2019Observed: 12.56 ft at 12:30PM Jul 23, 2019Observed: 12.56 ft at 12:40PM Jul 23, 2019Observed: 12.55 ft at 12:50PM Jul 23, 2019Observed: 12.55 ft at 1:00PM Jul 23, 2019Observed: 12.55 ft at 1:10PM Jul 23, 2019Observed: 12.55 ft at 1:20PM Jul 23, 2019Observed: 12.58 ft at 1:30PM Jul 23, 2019Observed: 12.58 ft at 1:40PM Jul 23, 2019Observed: 12.56 ft at 1:50PM Jul 23, 2019Observed: 12.57 ft at 2:00PM Jul 23, 2019Observed: 12.56 ft at 2:10PM Jul 23, 2019Observed: 12.55 ft at 2:20PM Jul 23, 2019Observed: 12.55 ft at 2:30PM Jul 23, 2019Observed: 12.52 ft at 2:40PM Jul 23, 2019Observed: 12.59 ft at 2:50PM Jul 23, 2019Observed: 12.55 ft at 3:00PM Jul 23, 2019Observed: 12.56 ft at 3:10PM Jul 23, 2019Observed: 12.56 ft at 3:20PM Jul 23, 2019Observed: 12.56 ft at 3:30PM Jul 23, 2019Observed: 12.55 ft at 3:40PM Jul 23, 2019Observed: 12.57 ft at 3:50PM Jul 23, 2019Observed: 12.56 ft at 4:00PM Jul 23, 2019Observed: 12.58 ft at 4:10PM Jul 23, 2019Observed: 12.59 ft at 4:20PM Jul 23, 2019Observed: 12.58 ft at 4:30PM Jul 23, 2019Observed: 12.6 ft at 4:40PM Jul 23, 2019Observed: 12.61 ft at 4:50PM Jul 23, 2019Observed: 12.61 ft at 5:00PM Jul 23, 2019Observed: 12.62 ft at 5:10PM Jul 23, 2019Observed: 12.56 ft at 5:20PM Jul 23, 2019Observed: 12.54 ft at 5:30PM Jul 23, 2019Observed: 12.57 ft at 5:40PM Jul 23, 2019Observed: 12.57 ft at 5:50PM Jul 23, 2019Observed: 12.57 ft at 6:00PM Jul 23, 2019Observed: 12.57 ft at 6:10PM Jul 23, 2019Observed: 12.56 ft at 6:20PM Jul 23, 2019Observed: 12.58 ft at 6:30PM Jul 23, 2019Observed: 12.6 ft at 6:40PM Jul 23, 2019Observed: 12.62 ft at 6:50PM Jul 23, 2019Observed: 12.6 ft at 7:00PM Jul 23, 2019Observed: 12.57 ft at 7:10PM Jul 23, 2019Observed: 12.57 ft at 7:20PM Jul 23, 2019Observed: 12.6 ft at 7:30PM Jul 23, 2019Observed: 12.54 ft at 7:40PM Jul 23, 2019Observed: 12.58 ft at 7:50PM Jul 23, 2019Observed: 12.58 ft at 8:00PM Jul 23, 2019Observed: 12.58 ft at 8:10PM Jul 23, 2019Observed: 12.59 ft at 8:20PM Jul 23, 2019Observed: 12.56 ft at 8:30PM Jul 23, 2019Observed: 12.58 ft at 8:40PM Jul 23, 2019Observed: 12.58 ft at 8:50PM Jul 23, 2019Observed: 12.55 ft at 9:00PM Jul 23, 2019Observed: 12.58 ft at 9:10PM Jul 23, 2019Observed: 12.55 ft at 9:20PM Jul 23, 2019Observed: 12.59 ft at 9:30PM Jul 23, 2019Observed: 12.6 ft at 9:40PM Jul 23, 2019Observed: 12.57 ft at 9:50PM Jul 23, 2019Observed: 12.55 ft at 10:00PM Jul 23, 2019Observed: 12.56 ft at 10:10PM Jul 23, 2019Observed: 12.6 ft at 10:20PM Jul 23, 2019Observed: 12.57 ft at 10:30PM Jul 23, 2019Observed: 12.57 ft at 10:40PM Jul 23, 2019Observed: 12.57 ft at 10:50PM Jul 23, 2019Observed: 12.58 ft at 11:00PM Jul 23, 2019Observed: 12.59 ft at 11:10PM Jul 23, 2019Observed: 12.58 ft at 11:20PM Jul 23, 2019Observed: 12.61 ft at 11:30PM Jul 23, 2019Observed: 12.58 ft at 11:40PM Jul 23, 2019Observed: 12.58 ft at 11:50PM Jul 23, 2019Observed: 12.58 ft at 12:00AM Jul 24, 2019Observed: 12.58 ft at 12:10AM Jul 24, 2019Observed: 12.58 ft at 12:20AM Jul 24, 2019Observed: 12.58 ft at 12:30AM Jul 24, 2019Observed: 12.6 ft at 12:40AM Jul 24, 2019Observed: 12.61 ft at 12:50AM Jul 24, 2019Observed: 12.58 ft at 1:00AM Jul 24, 2019Observed: 12.6 ft at 1:10AM Jul 24, 2019Observed: 12.6 ft at 1:20AM Jul 24, 2019Observed: 12.6 ft at 1:30AM Jul 24, 2019Forecast: 12.6 ft 7:00AM Jul 24, 2019Forecast: 12.6 ft 1:00PM Jul 24, 2019Forecast: 12.6 ft 7:00PM Jul 24, 2019Forecast: 12.7 ft 1:00AM Jul 25, 2019Forecast: 12.7 ft 7:00AM Jul 25, 2019Forecast: 12.7 ft 1:00PM Jul 25, 2019Forecast: 12.7 ft 7:00PM Jul 25, 2019Forecast: 12.7 ft 1:00AM Jul 26, 2019Forecast: 12.7 ft 7:00AM Jul 26, 2019Forecast: 12.7 ft 1:00PM Jul 26, 2019Forecast: 12.7 ft 7:00PM Jul 26, 2019Forecast: 12.7 ft 1:00AM Jul 27, 2019Forecast: 12.7 ft 7:00AM Jul 27, 2019Forecast: 12.7 ft 1:00PM Jul 27, 2019Forecast: 12.7 ft 7:00PM Jul 27, 2019Forecast: 12.7 ft 1:00AM Jul 28, 2019Forecast: 12.7 ft 7:00AM Jul 28, 2019Forecast: 12.8 ft 1:00PM Jul 28, 2019Forecast: 12.8 ft 7:00PM Jul 28, 2019Forecast: 12.8 ft 1:00AM Jul 29, 2019Forecast: 12.8 ft 7:00AM Jul 29, 2019Forecast: 12.9 ft 1:00PM Jul 29, 2019Forecast: 12.9 ft 7:00PM Jul 29, 2019Forecast: 12.9 ft 1:00AM Jul 30, 2019Forecast: 13 ft 7:00AM Jul 30, 2019Forecast: 13 ft 1:00PM Jul 30, 2019Forecast: 13.1 ft 7:00PM Jul 30, 2019Forecast: 13.1 ft 1:00AM Jul 31, 2019Forecast: 13.2 ft 7:00AM Jul 31, 2019Forecast: 13.2 ft 1:00PM Jul 31, 2019Forecast: 13.2 ft 7:00PM Jul 31, 2019Highest Forecast: 13.3 ft 1:00AM Aug 01, 2019Highest Forecast: 13.3 ft 7:00AM Aug 01, 2019Highest Forecast: 13.3 ft 1:00PM Aug 01, 2019Highest Forecast: 13.3 ft 7:00PM Aug 01, 2019Highest Forecast: 13.3 ft 1:00AM Aug 02, 2019Highest Forecast: 13.3 ft 7:00AM Aug 02, 2019Forecast: 13.2 ft 1:00PM Aug 02, 2019Forecast: 13.2 ft 7:00PM Aug 02, 2019Forecast: 13.1 ft 1:00AM Aug 03, 2019Forecast: 13 ft 7:00AM Aug 03, 2019Forecast: 12.9 ft 1:00PM Aug 03, 2019Forecast: 12.7 ft 7:00PM Aug 03, 2019Forecast: 12.6 ft 1:00AM Aug 04, 2019Forecast: 12.4 ft 7:00AM Aug 04, 2019Forecast: 12.2 ft 1:00PM Aug 04, 2019Forecast: 12 ft 7:00PM Aug 04, 2019Forecast: 11.8 ft 1:00AM Aug 05, 2019Forecast: 11.7 ft 7:00AM Aug 05, 2019Forecast: 11.5 ft 1:00PM Aug 05, 2019Forecast: 11.3 ft 7:00PM Aug 05, 2019Forecast: 11 ft 1:00AM Aug 06, 2019Forecast: 10.8 ft 7:00AM Aug 06, 2019QLDI2(plotting HTIRG) Graph Created (2:09AM Jul 24, 2019)ObservedForecast (issued 10:23AM Jul 23)Latest observed value: 12.6 ft at 1:30 AM CDT 24-Jul-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) 30.15 ft on 06/01/2019
(3) 29.58 ft on 06/18/2008
(4) 27.70 ft on 04/25/1973
(5) 27.24 ft on 04/21/2013
(6) 26.55 ft on 05/16/2001
(7) 26.15 ft on 07/08/2014
(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) 30.15 ft on 06/01/2019
(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: 4-Mar-2019 11:29 PM
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