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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: The National Hydrologic Discussion, Area Hydrologic Discussion, and Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via https://www.weather.gov/owp/operations, as described in the StoryMap here.



Hydrograph River at a Glance Download
Mississippi River at Quincy Lock and Dam 21 Tailwater (ft)Flow (kcfs)Observed: 12.4 ft at 2:30PM May 27, 2023Highest Observation: 12.41 ft at 2:40PM May 27, 2023Observed: 12.4 ft at 2:50PM May 27, 2023Observed: 12.37 ft at 3:00PM May 27, 2023Highest Observation: 12.41 ft at 3:10PM May 27, 2023Observed: 12.38 ft at 3:20PM May 27, 2023Observed: 12.38 ft at 3:30PM May 27, 2023Observed: 12.37 ft at 3:40PM May 27, 2023Observed: 12.35 ft at 3:50PM May 27, 2023Observed: 12.36 ft at 4:00PM May 27, 2023Observed: 12.34 ft at 4:10PM May 27, 2023Observed: 12.35 ft at 4:20PM May 27, 2023Observed: 12.32 ft at 4:30PM May 27, 2023Observed: 12.33 ft at 4:40PM May 27, 2023Observed: 12.32 ft at 4:50PM May 27, 2023Observed: 12.33 ft at 5:00PM May 27, 2023Observed: 12.32 ft at 5:10PM May 27, 2023Observed: 12.3 ft at 5:20PM May 27, 2023Observed: 12.32 ft at 5:30PM May 27, 2023Observed: 12.29 ft at 5:40PM May 27, 2023Observed: 12.28 ft at 5:50PM May 27, 2023Observed: 12.29 ft at 6:00PM May 27, 2023Observed: 12.29 ft at 6:10PM May 27, 2023Observed: 12.26 ft at 6:20PM May 27, 2023Observed: 12.2 ft at 6:30PM May 27, 2023Observed: 12.26 ft at 6:40PM May 27, 2023Observed: 12.24 ft at 6:50PM May 27, 2023Observed: 12.23 ft at 7:00PM May 27, 2023Observed: 12.26 ft at 7:10PM May 27, 2023Observed: 12.17 ft at 7:20PM May 27, 2023Observed: 12.2 ft at 7:30PM May 27, 2023Observed: 12.2 ft at 7:40PM May 27, 2023Observed: 12.2 ft at 7:50PM May 27, 2023Observed: 12.2 ft at 8:00PM May 27, 2023Observed: 12.23 ft at 8:10PM May 27, 2023Observed: 12.21 ft at 8:20PM May 27, 2023Observed: 12.19 ft at 8:30PM May 27, 2023Observed: 12.18 ft at 8:40PM May 27, 2023Observed: 12.1 ft at 8:50PM May 27, 2023Observed: 12.16 ft at 9:00PM May 27, 2023Observed: 12.18 ft at 9:10PM May 27, 2023Observed: 12.14 ft at 9:20PM May 27, 2023Observed: 12.14 ft at 9:30PM May 27, 2023Observed: 12.15 ft at 9:40PM May 27, 2023Observed: 12.15 ft at 9:50PM May 27, 2023Observed: 12.15 ft at 10:00PM May 27, 2023Observed: 12.13 ft at 10:10PM May 27, 2023Observed: 12.13 ft at 10:20PM May 27, 2023Observed: 12.11 ft at 10:30PM May 27, 2023Observed: 12.11 ft at 10:40PM May 27, 2023Observed: 12.12 ft at 10:50PM May 27, 2023Observed: 12.11 ft at 11:00PM May 27, 2023Observed: 12.11 ft at 11:10PM May 27, 2023Observed: 12.1 ft at 11:20PM May 27, 2023Observed: 12.11 ft at 11:30PM May 27, 2023Observed: 12.1 ft at 11:40PM May 27, 2023Observed: 12.1 ft at 11:50PM May 27, 2023Observed: 12.09 ft at 12:00AM May 28, 2023Observed: 12.08 ft at 12:10AM May 28, 2023Observed: 12.13 ft at 12:20AM May 28, 2023Observed: 12.09 ft at 12:30AM May 28, 2023Observed: 12.13 ft at 12:40AM May 28, 2023Observed: 12.1 ft at 12:50AM May 28, 2023Observed: 12.09 ft at 1:00AM May 28, 2023Observed: 12.08 ft at 1:10AM May 28, 2023Observed: 12.09 ft at 1:20AM May 28, 2023Observed: 12.08 ft at 1:30AM May 28, 2023Observed: 12.09 ft at 1:40AM May 28, 2023Observed: 12.07 ft at 1:50AM May 28, 2023Observed: 12.09 ft at 2:00AM May 28, 2023Observed: 12.09 ft at 2:10AM May 28, 2023Observed: 12.07 ft at 2:20AM May 28, 2023Observed: 12.08 ft at 2:30AM May 28, 2023Observed: 12.09 ft at 2:40AM May 28, 2023Observed: 12.07 ft at 2:50AM May 28, 2023Observed: 12.08 ft at 3:00AM May 28, 2023Observed: 12.07 ft at 3:10AM May 28, 2023Observed: 12.08 ft at 3:20AM May 28, 2023Observed: 12.05 ft at 3:30AM May 28, 2023Observed: 12.08 ft at 3:40AM May 28, 2023Observed: 12.08 ft at 3:50AM May 28, 2023Observed: 12.06 ft at 4:00AM May 28, 2023Observed: 12.07 ft at 4:10AM May 28, 2023Observed: 12.05 ft at 4:20AM May 28, 2023Observed: 12.07 ft at 4:30AM May 28, 2023Observed: 12.08 ft at 4:40AM May 28, 2023Observed: 12.07 ft at 4:50AM May 28, 2023Observed: 12.07 ft at 5:00AM May 28, 2023Observed: 12.07 ft at 5:10AM May 28, 2023Observed: 12.05 ft at 5:20AM May 28, 2023Observed: 12.07 ft at 5:30AM May 28, 2023Observed: 12.06 ft at 5:40AM May 28, 2023Observed: 12.05 ft at 5:50AM May 28, 2023Observed: 12.08 ft at 6:00AM May 28, 2023Observed: 12.08 ft at 6:10AM May 28, 2023Observed: 12.07 ft at 6:20AM May 28, 2023Observed: 12.06 ft at 6:30AM May 28, 2023Observed: 12.08 ft at 6:40AM May 28, 2023Observed: 12.08 ft at 6:50AM May 28, 2023Observed: 12.06 ft at 7:00AM May 28, 2023Observed: 12.07 ft at 7:10AM May 28, 2023Observed: 12.09 ft at 7:20AM May 28, 2023Observed: 12.09 ft at 7:30AM May 28, 2023Observed: 12.09 ft at 7:40AM May 28, 2023Observed: 12.08 ft at 7:50AM May 28, 2023Observed: 12.06 ft at 8:00AM May 28, 2023Observed: 12.08 ft at 8:10AM May 28, 2023Observed: 12.05 ft at 8:20AM May 28, 2023Observed: 12.09 ft at 8:30AM May 28, 2023Observed: 12.05 ft at 8:40AM May 28, 2023Observed: 12.06 ft at 8:50AM May 28, 2023Observed: 12.04 ft at 9:00AM May 28, 2023Observed: 12.04 ft at 9:10AM May 28, 2023Observed: 12.04 ft at 9:20AM May 28, 2023Observed: 12.05 ft at 9:30AM May 28, 2023Observed: 12.03 ft at 9:40AM May 28, 2023Observed: 12.02 ft at 9:50AM May 28, 2023Observed: 12.02 ft at 10:00AM May 28, 2023Observed: 12.02 ft at 10:10AM May 28, 2023Observed: 12.03 ft at 10:20AM May 28, 2023Observed: 12.01 ft at 10:30AM May 28, 2023Observed: 12.02 ft at 10:40AM May 28, 2023Observed: 12.02 ft at 10:50AM May 28, 2023Observed: 12.04 ft at 11:00AM May 28, 2023Observed: 12.03 ft at 11:10AM May 28, 2023Observed: 12.02 ft at 11:20AM May 28, 2023Observed: 12.01 ft at 11:30AM May 28, 2023Observed: 11.98 ft at 11:40AM May 28, 2023Observed: 11.98 ft at 11:50AM May 28, 2023Observed: 12.05 ft at 12:00PM May 28, 2023Observed: 12.04 ft at 12:10PM May 28, 2023Observed: 12.02 ft at 12:20PM May 28, 2023Observed: 11.99 ft at 12:30PM May 28, 2023Observed: 11.98 ft at 12:40PM May 28, 2023Observed: 12 ft at 12:50PM May 28, 2023Observed: 11.97 ft at 1:00PM May 28, 2023Observed: 11.97 ft at 1:10PM May 28, 2023Observed: 11.97 ft at 1:20PM May 28, 2023Observed: 11.95 ft at 1:30PM May 28, 2023Observed: 11.97 ft at 1:40PM May 28, 2023Observed: 11.97 ft at 1:50PM May 28, 2023Observed: 11.89 ft at 2:00PM May 28, 2023Observed: 11.95 ft at 2:10PM May 28, 2023Observed: 11.96 ft at 2:20PM May 28, 2023Observed: 11.93 ft at 2:30PM May 28, 2023Observed: 11.93 ft at 2:40PM May 28, 2023Observed: 11.92 ft at 2:50PM May 28, 2023Observed: 11.91 ft at 3:00PM May 28, 2023Observed: 11.93 ft at 3:10PM May 28, 2023Observed: 11.92 ft at 3:20PM May 28, 2023Observed: 11.89 ft at 3:30PM May 28, 2023Observed: 11.91 ft at 3:40PM May 28, 2023Observed: 11.9 ft at 3:50PM May 28, 2023Observed: 11.92 ft at 4:00PM May 28, 2023Observed: 11.92 ft at 4:10PM May 28, 2023Observed: 11.87 ft at 4:20PM May 28, 2023Observed: 11.87 ft at 4:30PM May 28, 2023Observed: 11.89 ft at 4:40PM May 28, 2023Observed: 11.88 ft at 4:50PM May 28, 2023Observed: 11.86 ft at 5:00PM May 28, 2023Observed: 11.87 ft at 5:10PM May 28, 2023Observed: 11.84 ft at 5:20PM May 28, 2023Observed: 11.88 ft at 5:30PM May 28, 2023Observed: 11.86 ft at 5:40PM May 28, 2023Observed: 11.84 ft at 5:50PM May 28, 2023Observed: 11.85 ft at 6:00PM May 28, 2023Observed: 11.84 ft at 6:10PM May 28, 2023Observed: 11.84 ft at 6:20PM May 28, 2023Observed: 11.81 ft at 6:30PM May 28, 2023Observed: 11.8 ft at 6:40PM May 28, 2023Observed: 11.8 ft at 6:50PM May 28, 2023Observed: 11.71 ft at 7:00PM May 28, 2023Observed: 11.78 ft at 7:10PM May 28, 2023Observed: 11.83 ft at 7:20PM May 28, 2023Observed: 11.85 ft at 7:30PM May 28, 2023Observed: 11.8 ft at 7:40PM May 28, 2023Observed: 11.79 ft at 7:50PM May 28, 2023Observed: 11.79 ft at 8:00PM May 28, 2023Observed: 11.78 ft at 8:10PM May 28, 2023Observed: 11.8 ft at 8:20PM May 28, 2023Observed: 11.79 ft at 8:30PM May 28, 2023Observed: 11.79 ft at 8:40PM May 28, 2023Observed: 11.78 ft at 8:50PM May 28, 2023Observed: 11.8 ft at 9:00PM May 28, 2023Observed: 11.78 ft at 9:10PM May 28, 2023Observed: 11.77 ft at 9:20PM May 28, 2023Observed: 11.76 ft at 9:30PM May 28, 2023Observed: 11.74 ft at 9:40PM May 28, 2023Observed: 11.78 ft at 9:50PM May 28, 2023Observed: 11.75 ft at 10:00PM May 28, 2023Observed: 11.77 ft at 10:10PM May 28, 2023Observed: 11.75 ft at 10:20PM May 28, 2023Observed: 11.74 ft at 10:30PM May 28, 2023Observed: 11.73 ft at 10:40PM May 28, 2023Observed: 11.75 ft at 10:50PM May 28, 2023Observed: 11.74 ft at 11:00PM May 28, 2023Observed: 11.74 ft at 11:10PM May 28, 2023Observed: 11.73 ft at 11:20PM May 28, 2023Observed: 11.72 ft at 11:30PM May 28, 2023Observed: 11.74 ft at 11:40PM May 28, 2023Observed: 11.71 ft at 11:50PM May 28, 2023Observed: 11.73 ft at 12:00AM May 29, 2023Observed: 11.71 ft at 12:10AM May 29, 2023Observed: 11.71 ft at 12:20AM May 29, 2023Observed: 11.73 ft at 12:30AM May 29, 2023Observed: 11.72 ft at 12:40AM May 29, 2023Observed: 11.71 ft at 12:50AM May 29, 2023Observed: 11.71 ft at 1:00AM May 29, 2023Observed: 11.71 ft at 1:10AM May 29, 2023Observed: 11.69 ft at 1:20AM May 29, 2023Observed: 11.7 ft at 1:30AM May 29, 2023Observed: 11.72 ft at 1:40AM May 29, 2023Observed: 11.7 ft at 1:50AM May 29, 2023Observed: 11.68 ft at 2:00AM May 29, 2023Observed: 11.69 ft at 2:10AM May 29, 2023Observed: 11.67 ft at 2:20AM May 29, 2023Observed: 11.67 ft at 2:30AM May 29, 2023Observed: 11.68 ft at 3:10AM May 29, 2023Observed: 11.68 ft at 3:20AM May 29, 2023Observed: 11.7 ft at 3:30AM May 29, 2023Observed: 11.68 ft at 3:40AM May 29, 2023Observed: 11.66 ft at 3:50AM May 29, 2023Observed: 11.66 ft at 4:00AM May 29, 2023Observed: 11.68 ft at 4:10AM May 29, 2023Observed: 11.65 ft at 4:20AM May 29, 2023Observed: 11.65 ft at 4:30AM May 29, 2023Observed: 11.69 ft at 4:40AM May 29, 2023Observed: 11.64 ft at 4:50AM May 29, 2023Observed: 11.65 ft at 5:00AM May 29, 2023Observed: 11.66 ft at 5:10AM May 29, 2023Observed: 11.64 ft at 5:20AM May 29, 2023Observed: 11.64 ft at 5:30AM May 29, 2023Observed: 11.65 ft at 5:40AM May 29, 2023Observed: 11.65 ft at 5:50AM May 29, 2023Observed: 11.63 ft at 6:00AM May 29, 2023Observed: 11.65 ft at 6:10AM May 29, 2023Observed: 11.65 ft at 6:20AM May 29, 2023Observed: 11.64 ft at 6:30AM May 29, 2023Observed: 11.66 ft at 6:40AM May 29, 2023Observed: 11.65 ft at 6:50AM May 29, 2023Observed: 11.66 ft at 7:00AM May 29, 2023Observed: 11.65 ft at 7:10AM May 29, 2023Observed: 11.65 ft at 7:20AM May 29, 2023Observed: 11.63 ft at 7:30AM May 29, 2023Observed: 11.63 ft at 8:10AM May 29, 2023Observed: 11.62 ft at 8:20AM May 29, 2023Observed: 11.61 ft at 8:30AM May 29, 2023Observed: 11.65 ft at 8:40AM May 29, 2023Observed: 11.65 ft at 8:50AM May 29, 2023Observed: 11.66 ft at 9:00AM May 29, 2023Observed: 11.65 ft at 9:10AM May 29, 2023Observed: 11.57 ft at 9:20AM May 29, 2023Observed: 11.69 ft at 9:30AM May 29, 2023Observed: 11.64 ft at 9:40AM May 29, 2023Observed: 11.65 ft at 9:50AM May 29, 2023Observed: 11.63 ft at 10:00AM May 29, 2023Observed: 11.66 ft at 10:10AM May 29, 2023Observed: 11.63 ft at 10:20AM May 29, 2023Observed: 11.63 ft at 10:30AM May 29, 2023Observed: 11.66 ft at 10:40AM May 29, 2023Observed: 11.63 ft at 10:50AM May 29, 2023Observed: 11.6 ft at 11:00AM May 29, 2023Observed: 11.7 ft at 11:10AM May 29, 2023Observed: 11.64 ft at 11:20AM May 29, 2023Observed: 11.65 ft at 11:30AM May 29, 2023Observed: 11.66 ft at 11:40AM May 29, 2023Observed: 11.65 ft at 11:50AM May 29, 2023Observed: 11.64 ft at 12:00PM May 29, 2023Observed: 11.65 ft at 12:10PM May 29, 2023Observed: 11.64 ft at 12:20PM May 29, 2023Observed: 11.64 ft at 12:30PM May 29, 2023Observed: 11.64 ft at 12:40PM May 29, 2023Observed: 11.64 ft at 12:50PM May 29, 2023Observed: 11.66 ft at 1:10PM May 29, 2023Observed: 11.65 ft at 1:20PM May 29, 2023Observed: 11.65 ft at 1:30PM May 29, 2023Observed: 11.64 ft at 2:10PM May 29, 2023Observed: 11.59 ft at 2:20PM May 29, 2023Observed: 11.68 ft at 2:30PM May 29, 2023Observed: 11.67 ft at 2:40PM May 29, 2023Observed: 11.55 ft at 2:50PM May 29, 2023Observed: 11.65 ft at 3:00PM May 29, 2023Observed: 11.68 ft at 3:10PM May 29, 2023Observed: 11.66 ft at 3:20PM May 29, 2023Observed: 11.65 ft at 3:30PM May 29, 2023Observed: 11.67 ft at 3:40PM May 29, 2023Observed: 11.65 ft at 3:50PM May 29, 2023Observed: 11.66 ft at 4:00PM May 29, 2023Observed: 11.66 ft at 4:10PM May 29, 2023Observed: 11.65 ft at 4:20PM May 29, 2023Observed: 11.65 ft at 4:30PM May 29, 2023Observed: 11.65 ft at 4:40PM May 29, 2023Observed: 11.64 ft at 4:50PM May 29, 2023Observed: 11.64 ft at 5:00PM May 29, 2023Observed: 11.63 ft at 5:10PM May 29, 2023Observed: 11.63 ft at 5:20PM May 29, 2023Observed: 11.63 ft at 5:30PM May 29, 2023Observed: 11.62 ft at 5:40PM May 29, 2023Observed: 11.61 ft at 5:50PM May 29, 2023Observed: 11.63 ft at 6:00PM May 29, 2023Observed: 11.62 ft at 6:10PM May 29, 2023Observed: 11.55 ft at 6:20PM May 29, 2023Observed: 11.61 ft at 6:30PM May 29, 2023Observed: 11.59 ft at 6:40PM May 29, 2023Observed: 11.62 ft at 6:50PM May 29, 2023Observed: 11.56 ft at 7:00PM May 29, 2023Observed: 11.59 ft at 7:10PM May 29, 2023Observed: 11.6 ft at 7:20PM May 29, 2023Observed: 11.56 ft at 7:30PM May 29, 2023Observed: 11.55 ft at 7:40PM May 29, 2023Observed: 11.58 ft at 7:50PM May 29, 2023Observed: 11.6 ft at 8:00PM May 29, 2023Observed: 11.57 ft at 8:10PM May 29, 2023Observed: 11.57 ft at 8:20PM May 29, 2023Observed: 11.58 ft at 8:30PM May 29, 2023Observed: 11.56 ft at 8:40PM May 29, 2023Observed: 11.54 ft at 8:50PM May 29, 2023Observed: 11.55 ft at 9:00PM May 29, 2023Observed: 11.53 ft at 9:10PM May 29, 2023Observed: 11.54 ft at 9:20PM May 29, 2023Observed: 11.53 ft at 9:30PM May 29, 2023Observed: 11.51 ft at 9:40PM May 29, 2023Observed: 11.52 ft at 9:50PM May 29, 2023Observed: 11.53 ft at 10:00PM May 29, 2023Observed: 11.52 ft at 10:10PM May 29, 2023Observed: 11.51 ft at 10:20PM May 29, 2023Observed: 11.53 ft at 10:30PM May 29, 2023Observed: 11.5 ft at 10:40PM May 29, 2023Observed: 11.49 ft at 10:50PM May 29, 2023Observed: 11.49 ft at 11:00PM May 29, 2023Observed: 11.49 ft at 11:10PM May 29, 2023Observed: 11.48 ft at 11:20PM May 29, 2023Observed: 11.48 ft at 11:30PM May 29, 2023Observed: 11.49 ft at 11:40PM May 29, 2023Observed: 11.5 ft at 11:50PM May 29, 2023Observed: 11.48 ft at 12:00AM May 30, 2023Observed: 11.47 ft at 12:10AM May 30, 2023Observed: 11.48 ft at 12:20AM May 30, 2023Observed: 11.53 ft at 12:30AM May 30, 2023Observed: 11.43 ft at 12:40AM May 30, 2023Observed: 11.46 ft at 12:50AM May 30, 2023Observed: 11.48 ft at 1:00AM May 30, 2023Observed: 11.46 ft at 1:10AM May 30, 2023Observed: 11.44 ft at 1:20AM May 30, 2023Observed: 11.47 ft at 1:30AM May 30, 2023Observed: 11.38 ft at 1:40AM May 30, 2023Observed: 11.4 ft at 1:50AM May 30, 2023Observed: 11.43 ft at 2:00AM May 30, 2023Observed: 11.41 ft at 2:10AM May 30, 2023Observed: 11.42 ft at 2:20AM May 30, 2023Observed: 11.4 ft at 2:30AM May 30, 2023Observed: 11.38 ft at 2:40AM May 30, 2023Observed: 11.4 ft at 2:50AM May 30, 2023Observed: 11.39 ft at 3:00AM May 30, 2023Observed: 11.4 ft at 3:10AM May 30, 2023Observed: 11.38 ft at 3:20AM May 30, 2023Observed: 11.38 ft at 3:30AM May 30, 2023Observed: 11.39 ft at 3:40AM May 30, 2023Observed: 11.37 ft at 3:50AM May 30, 2023Observed: 11.39 ft at 4:00AM May 30, 2023Observed: 11.37 ft at 4:10AM May 30, 2023Observed: 11.38 ft at 4:20AM May 30, 2023Observed: 11.37 ft at 4:30AM May 30, 2023Observed: 11.37 ft at 4:40AM May 30, 2023Observed: 11.32 ft at 4:50AM May 30, 2023Observed: 11.36 ft at 5:00AM May 30, 2023Observed: 11.37 ft at 5:10AM May 30, 2023Observed: 11.36 ft at 5:20AM May 30, 2023Observed: 11.36 ft at 5:30AM May 30, 2023Observed: 11.36 ft at 5:40AM May 30, 2023Observed: 11.33 ft at 5:50AM May 30, 2023Observed: 11.37 ft at 6:00AM May 30, 2023Observed: 11.34 ft at 6:10AM May 30, 2023Observed: 11.37 ft at 6:20AM May 30, 2023Observed: 11.36 ft at 6:30AM May 30, 2023Observed: 11.34 ft at 6:40AM May 30, 2023Observed: 11.35 ft at 6:50AM May 30, 2023Observed: 11.34 ft at 7:00AM May 30, 2023Observed: 11.33 ft at 7:10AM May 30, 2023Observed: 11.35 ft at 7:20AM May 30, 2023Observed: 11.34 ft at 7:30AM May 30, 2023Observed: 11.34 ft at 7:40AM May 30, 2023Observed: 11.34 ft at 7:50AM May 30, 2023Observed: 11.34 ft at 8:00AM May 30, 2023Observed: 11.35 ft at 8:10AM May 30, 2023Observed: 11.35 ft at 8:20AM May 30, 2023Observed: 11.34 ft at 8:30AM May 30, 2023Observed: 11.32 ft at 8:40AM May 30, 2023Observed: 11.27 ft at 8:50AM May 30, 2023Observed: 11.23 ft at 9:00AM May 30, 2023Observed: 11.21 ft at 9:10AM May 30, 2023Observed: 11.23 ft at 9:20AM May 30, 2023Observed: 11.21 ft at 9:30AM May 30, 2023Observed: 11.23 ft at 9:40AM May 30, 2023Observed: 11.22 ft at 9:50AM May 30, 2023Observed: 11.23 ft at 10:00AM May 30, 2023Observed: 11.26 ft at 10:10AM May 30, 2023Observed: 11.2 ft at 10:20AM May 30, 2023Observed: 11.23 ft at 10:30AM May 30, 2023Observed: 11.24 ft at 10:40AM May 30, 2023Observed: 11.25 ft at 10:50AM May 30, 2023Observed: 11.22 ft at 11:00AM May 30, 2023Observed: 11.27 ft at 11:10AM May 30, 2023Observed: 11.26 ft at 11:20AM May 30, 2023Observed: 11.26 ft at 11:30AM May 30, 2023Observed: 11.26 ft at 11:40AM May 30, 2023Observed: 11.26 ft at 11:50AM May 30, 2023Observed: 11.26 ft at 12:00PM May 30, 2023Observed: 11.28 ft at 12:10PM May 30, 2023Observed: 11.29 ft at 12:20PM May 30, 2023Observed: 11.29 ft at 12:30PM May 30, 2023Observed: 11.28 ft at 12:40PM May 30, 2023Observed: 11.29 ft at 12:50PM May 30, 2023Observed: 11.28 ft at 1:00PM May 30, 2023Observed: 11.29 ft at 1:10PM May 30, 2023Observed: 11.29 ft at 1:20PM May 30, 2023Observed: 11.31 ft at 1:30PM May 30, 2023Observed: 11.32 ft at 1:40PM May 30, 2023Observed: 11.29 ft at 1:50PM May 30, 2023Observed: 11.32 ft at 2:00PM May 30, 2023Observed: 11.33 ft at 2:10PM May 30, 2023Observed: 11.34 ft at 2:20PM May 30, 2023Observed: 11.32 ft at 2:30PM May 30, 2023Observed: 11.31 ft at 2:40PM May 30, 2023Observed: 11.34 ft at 2:50PM May 30, 2023Observed: 11.33 ft at 3:00PM May 30, 2023Observed: 11.34 ft at 3:10PM May 30, 2023Observed: 11.32 ft at 3:20PM May 30, 2023Observed: 11.34 ft at 3:30PM May 30, 2023Observed: 11.36 ft at 3:40PM May 30, 2023Observed: 11.37 ft at 3:50PM May 30, 2023Observed: 11.34 ft at 4:00PM May 30, 2023Observed: 11.36 ft at 4:10PM May 30, 2023Observed: 11.35 ft at 4:20PM May 30, 2023Observed: 11.36 ft at 4:30PM May 30, 2023Observed: 11.36 ft at 4:40PM May 30, 2023Observed: 11.37 ft at 4:50PM May 30, 2023Observed: 11.39 ft at 5:00PM May 30, 2023Observed: 11.33 ft at 5:10PM May 30, 2023Observed: 11.35 ft at 5:20PM May 30, 2023Observed: 11.35 ft at 5:30PM May 30, 2023Observed: 11.37 ft at 5:40PM May 30, 2023Observed: 11.37 ft at 5:50PM May 30, 2023Observed: 11.37 ft at 6:00PM May 30, 2023Observed: 11.37 ft at 6:10PM May 30, 2023Observed: 11.37 ft at 6:20PM May 30, 2023Observed: 11.38 ft at 6:30PM May 30, 2023Observed: 11.37 ft at 6:40PM May 30, 2023Observed: 11.38 ft at 6:50PM May 30, 2023Observed: 11.38 ft at 7:00PM May 30, 2023Observed: 11.37 ft at 7:10PM May 30, 2023Observed: 11.38 ft at 7:20PM May 30, 2023Observed: 11.38 ft at 7:30PM May 30, 2023Observed: 11.39 ft at 7:40PM May 30, 2023Observed: 11.4 ft at 7:50PM May 30, 2023Observed: 11.4 ft at 8:00PM May 30, 2023Observed: 11.39 ft at 8:10PM May 30, 2023Observed: 11.38 ft at 8:20PM May 30, 2023Observed: 11.39 ft at 8:30PM May 30, 2023Observed: 11.39 ft at 8:40PM May 30, 2023Observed: 11.39 ft at 8:50PM May 30, 2023Observed: 11.4 ft at 9:00PM May 30, 2023Observed: 11.4 ft at 9:10PM May 30, 2023Observed: 11.4 ft at 9:20PM May 30, 2023Observed: 11.39 ft at 9:30PM May 30, 2023Observed: 11.4 ft at 9:40PM May 30, 2023Observed: 11.41 ft at 9:50PM May 30, 2023Observed: 11.4 ft at 10:00PM May 30, 2023Observed: 11.41 ft at 10:10PM May 30, 2023Observed: 11.4 ft at 10:20PM May 30, 2023Observed: 11.39 ft at 10:30PM May 30, 2023Observed: 11.4 ft at 10:40PM May 30, 2023Observed: 11.4 ft at 10:50PM May 30, 2023Observed: 11.4 ft at 11:00PM May 30, 2023Observed: 11.39 ft at 11:10PM May 30, 2023Observed: 11.41 ft at 11:20PM May 30, 2023Observed: 11.41 ft at 11:30PM May 30, 2023Observed: 11.39 ft at 11:40PM May 30, 2023Observed: 11.39 ft at 11:50PM May 30, 2023Observed: 11.39 ft at 12:00AM May 31, 2023Observed: 11.39 ft at 12:10AM May 31, 2023Observed: 11.38 ft at 12:20AM May 31, 2023Observed: 11.38 ft at 12:30AM May 31, 2023Observed: 11.4 ft at 12:40AM May 31, 2023Observed: 11.39 ft at 12:50AM May 31, 2023Observed: 11.38 ft at 1:00AM May 31, 2023Observed: 11.37 ft at 1:10AM May 31, 2023Observed: 11.4 ft at 1:20AM May 31, 2023Observed: 11.36 ft at 1:30AM May 31, 2023Observed: 11.37 ft at 1:40AM May 31, 2023Observed: 11.35 ft at 1:50AM May 31, 2023Observed: 11.35 ft at 2:00AM May 31, 2023Observed: 11.36 ft at 2:10AM May 31, 2023Observed: 11.37 ft at 2:20AM May 31, 2023Observed: 11.36 ft at 2:30AM May 31, 2023Observed: 11.36 ft at 2:40AM May 31, 2023Observed: 11.35 ft at 2:50AM May 31, 2023Observed: 11.35 ft at 3:00AM May 31, 2023Observed: 11.34 ft at 3:10AM May 31, 2023Observed: 11.36 ft at 3:20AM May 31, 2023Observed: 11.35 ft at 3:30AM May 31, 2023Observed: 11.36 ft at 3:40AM May 31, 2023Observed: 11.32 ft at 3:50AM May 31, 2023Observed: 11.33 ft at 4:00AM May 31, 2023Observed: 11.36 ft at 4:10AM May 31, 2023Observed: 11.34 ft at 4:20AM May 31, 2023Observed: 11.34 ft at 4:30AM May 31, 2023Observed: 11.34 ft at 4:40AM May 31, 2023Observed: 11.33 ft at 4:50AM May 31, 2023Observed: 11.34 ft at 5:00AM May 31, 2023Observed: 11.33 ft at 5:10AM May 31, 2023Observed: 11.34 ft at 5:20AM May 31, 2023Observed: 11.32 ft at 5:30AM May 31, 2023Observed: 11.34 ft at 5:40AM May 31, 2023Observed: 11.31 ft at 5:50AM May 31, 2023Observed: 11.31 ft at 6:00AM May 31, 2023Observed: 11.34 ft at 6:10AM May 31, 2023Observed: 11.3 ft at 6:20AM May 31, 2023Observed: 11.33 ft at 6:30AM May 31, 2023Observed: 11.32 ft at 6:40AM May 31, 2023Observed: 11.33 ft at 6:50AM May 31, 2023Observed: 11.3 ft at 7:00AM May 31, 2023Observed: 11.32 ft at 7:10AM May 31, 2023Observed: 11.32 ft at 7:20AM May 31, 2023Observed: 11.34 ft at 7:30AM May 31, 2023Observed: 11.29 ft at 7:40AM May 31, 2023Observed: 11.33 ft at 7:50AM May 31, 2023Observed: 11.32 ft at 8:00AM May 31, 2023Observed: 11.33 ft at 8:10AM May 31, 2023Observed: 11.32 ft at 8:20AM May 31, 2023Observed: 11.32 ft at 8:30AM May 31, 2023Observed: 11.3 ft at 8:40AM May 31, 2023Observed: 11.3 ft at 8:50AM May 31, 2023Observed: 11.31 ft at 9:00AM May 31, 2023Observed: 11.31 ft at 9:10AM May 31, 2023Observed: 11.32 ft at 9:20AM May 31, 2023Observed: 11.31 ft at 9:30AM May 31, 2023Observed: 11.3 ft at 9:40AM May 31, 2023Observed: 11.32 ft at 9:50AM May 31, 2023Observed: 11.32 ft at 10:00AM May 31, 2023Observed: 11.31 ft at 10:10AM May 31, 2023Observed: 11.3 ft at 10:20AM May 31, 2023Observed: 11.32 ft at 10:30AM May 31, 2023Observed: 11.31 ft at 10:40AM May 31, 2023Observed: 11.32 ft at 10:50AM May 31, 2023Observed: 11.32 ft at 11:00AM May 31, 2023Observed: 11.31 ft at 11:40AM May 31, 2023Observed: 11.38 ft at 11:50AM May 31, 2023Observed: 11.32 ft at 12:00PM May 31, 2023Observed: 11.32 ft at 12:10PM May 31, 2023Observed: 11.32 ft at 12:20PM May 31, 2023Observed: 11.31 ft at 12:30PM May 31, 2023Observed: 11.33 ft at 1:10PM May 31, 2023Observed: 11.32 ft at 1:20PM May 31, 2023Observed: 11.33 ft at 1:30PM May 31, 2023Observed: 11.32 ft at 1:40PM May 31, 2023Observed: 11.34 ft at 1:50PM May 31, 2023Observed: 11.34 ft at 2:00PM May 31, 2023Observed: 11.33 ft at 3:10PM May 31, 2023Observed: 11.31 ft at 3:20PM May 31, 2023Observed: 11.31 ft at 3:30PM May 31, 2023Observed: 11.33 ft at 3:40PM May 31, 2023Observed: 11.3 ft at 3:50PM May 31, 2023Observed: 11.33 ft at 4:00PM May 31, 2023Observed: 11.33 ft at 4:10PM May 31, 2023Observed: 11.33 ft at 4:20PM May 31, 2023Observed: 11.31 ft at 4:30PM May 31, 2023Observed: 11.31 ft at 4:40PM May 31, 2023Observed: 11.32 ft at 4:50PM May 31, 2023Observed: 11.3 ft at 5:00PM May 31, 2023Observed: 11.3 ft at 5:10PM May 31, 2023Observed: 11.32 ft at 5:20PM May 31, 2023Observed: 11.3 ft at 5:30PM May 31, 2023Observed: 11.3 ft at 5:40PM May 31, 2023Observed: 11.3 ft at 5:50PM May 31, 2023Observed: 11.31 ft at 6:00PM May 31, 2023Observed: 11.3 ft at 6:10PM May 31, 2023Observed: 11.29 ft at 6:20PM May 31, 2023Observed: 11.29 ft at 6:30PM May 31, 2023Observed: 11.3 ft at 6:40PM May 31, 2023Observed: 11.29 ft at 6:50PM May 31, 2023Observed: 11.3 ft at 7:00PM May 31, 2023Observed: 11.28 ft at 7:10PM May 31, 2023Observed: 11.31 ft at 7:20PM May 31, 2023Observed: 11.3 ft at 7:30PM May 31, 2023Observed: 11.3 ft at 7:40PM May 31, 2023Observed: 11.32 ft at 7:50PM May 31, 2023Observed: 11.28 ft at 8:00PM May 31, 2023Observed: 11.26 ft at 8:10PM May 31, 2023Observed: 11.3 ft at 8:20PM May 31, 2023Observed: 11.29 ft at 8:30PM May 31, 2023Observed: 11.28 ft at 8:40PM May 31, 2023Observed: 11.28 ft at 8:50PM May 31, 2023Observed: 11.27 ft at 9:00PM May 31, 2023Observed: 11.27 ft at 9:40PM May 31, 2023Observed: 11.26 ft at 9:50PM May 31, 2023Observed: 11.25 ft at 10:00PM May 31, 2023Observed: 11.26 ft at 10:10PM May 31, 2023Observed: 11.25 ft at 10:20PM May 31, 2023Observed: 11.26 ft at 10:30PM May 31, 2023Observed: 11.25 ft at 10:40PM May 31, 2023Observed: 11.24 ft at 10:50PM May 31, 2023Observed: 11.23 ft at 11:00PM May 31, 2023Observed: 11.26 ft at 11:10PM May 31, 2023Observed: 11.24 ft at 11:20PM May 31, 2023Observed: 11.25 ft at 11:30PM May 31, 2023Observed: 11.26 ft at 11:40PM May 31, 2023Observed: 11.24 ft at 11:50PM May 31, 2023Observed: 11.22 ft at 12:00AM Jun 01, 2023Observed: 11.23 ft at 12:10AM Jun 01, 2023Observed: 11.23 ft at 12:20AM Jun 01, 2023Observed: 11.24 ft at 12:30AM Jun 01, 2023Observed: 11.22 ft at 1:10AM Jun 01, 2023Observed: 11.23 ft at 1:20AM Jun 01, 2023Observed: 11.22 ft at 1:30AM Jun 01, 2023Observed: 11.21 ft at 1:40AM Jun 01, 2023Observed: 11.19 ft at 1:50AM Jun 01, 2023Observed: 11.21 ft at 2:00AM Jun 01, 2023Observed: 11.23 ft at 2:10AM Jun 01, 2023Observed: 11.22 ft at 2:20AM Jun 01, 2023Observed: 11.22 ft at 2:30AM Jun 01, 2023Observed: 11.19 ft at 3:10AM Jun 01, 2023Observed: 11.22 ft at 3:20AM Jun 01, 2023Observed: 11.2 ft at 3:30AM Jun 01, 2023Observed: 11.22 ft at 3:40AM Jun 01, 2023Observed: 11.17 ft at 3:50AM Jun 01, 2023Observed: 11.2 ft at 4:00AM Jun 01, 2023Observed: 11.2 ft at 4:10AM Jun 01, 2023Observed: 11.21 ft at 4:20AM Jun 01, 2023Observed: 11.23 ft at 4:30AM Jun 01, 2023Observed: 11.22 ft at 4:40AM Jun 01, 2023Observed: 11.22 ft at 4:50AM Jun 01, 2023Observed: 11.14 ft at 5:00AM Jun 01, 2023Observed: 11.19 ft at 5:10AM Jun 01, 2023Observed: 11.2 ft at 5:20AM Jun 01, 2023Observed: 11.19 ft at 5:30AM Jun 01, 2023Observed: 11.17 ft at 5:40AM Jun 01, 2023Observed: 11.17 ft at 5:50AM Jun 01, 2023Observed: 11.17 ft at 6:00AM Jun 01, 2023Observed: 11.2 ft at 6:10AM Jun 01, 2023Observed: 11.16 ft at 6:20AM Jun 01, 2023Observed: 11.18 ft at 6:30AM Jun 01, 2023Observed: 11.17 ft at 6:40AM Jun 01, 2023Observed: 11.16 ft at 6:50AM Jun 01, 2023Observed: 11.18 ft at 7:00AM Jun 01, 2023Observed: 11.16 ft at 7:10AM Jun 01, 2023Observed: 11.17 ft at 7:20AM Jun 01, 2023Observed: 11.18 ft at 7:30AM Jun 01, 2023Observed: 11.19 ft at 7:40AM Jun 01, 2023Observed: 11.18 ft at 7:50AM Jun 01, 2023Observed: 11.17 ft at 8:00AM Jun 01, 2023Observed: 11.18 ft at 8:10AM Jun 01, 2023Observed: 11.15 ft at 8:20AM Jun 01, 2023Observed: 11.18 ft at 8:30AM Jun 01, 2023Observed: 11.15 ft at 9:10AM Jun 01, 2023Observed: 11.17 ft at 9:20AM Jun 01, 2023Observed: 11.16 ft at 9:30AM Jun 01, 2023Observed: 11.15 ft at 10:10AM Jun 01, 2023Observed: 11.17 ft at 10:20AM Jun 01, 2023Observed: 11.16 ft at 10:30AM Jun 01, 2023Observed: 11.14 ft at 10:40AM Jun 01, 2023Observed: 11.15 ft at 10:50AM Jun 01, 2023Observed: 11.18 ft at 11:00AM Jun 01, 2023Observed: 11.17 ft at 11:10AM Jun 01, 2023Observed: 11.17 ft at 11:20AM Jun 01, 2023Observed: 11.15 ft at 11:30AM Jun 01, 2023Observed: 11.17 ft at 11:40AM Jun 01, 2023Observed: 11.15 ft at 11:50AM Jun 01, 2023Observed: 11.16 ft at 12:00PM Jun 01, 2023Observed: 11.16 ft at 12:10PM Jun 01, 2023Observed: 11.14 ft at 12:20PM Jun 01, 2023Observed: 11.15 ft at 12:30PM Jun 01, 2023Observed: 11.16 ft at 12:40PM Jun 01, 2023Observed: 11.14 ft at 12:50PM Jun 01, 2023Observed: 11.14 ft at 1:00PM Jun 01, 2023Observed: 11.15 ft at 1:10PM Jun 01, 2023Observed: 11.13 ft at 1:20PM Jun 01, 2023Observed: 11.15 ft at 1:30PM Jun 01, 2023Highest Forecast: 11.1 ft 7:00PM Jun 01, 2023Forecast: 11 ft 1:00AM Jun 02, 2023Forecast: 11 ft 7:00AM Jun 02, 2023Forecast: 11 ft 1:00PM Jun 02, 2023Forecast: 10.9 ft 7:00PM Jun 02, 2023Forecast: 10.9 ft 1:00AM Jun 03, 2023Forecast: 10.8 ft 7:00AM Jun 03, 2023Forecast: 10.8 ft 1:00PM Jun 03, 2023Forecast: 10.8 ft 7:00PM Jun 03, 2023Forecast: 10.7 ft 1:00AM Jun 04, 2023Forecast: 10.7 ft 7:00AM Jun 04, 2023Forecast: 10.7 ft 1:00PM Jun 04, 2023Forecast: 10.7 ft 7:00PM Jun 04, 2023Forecast: 10.6 ft 1:00AM Jun 05, 2023Forecast: 10.6 ft 7:00AM Jun 05, 2023Forecast: 10.5 ft 1:00PM Jun 05, 2023Forecast: 10.5 ft 7:00PM Jun 05, 2023Forecast: 10.4 ft 1:00AM Jun 06, 2023Forecast: 10.4 ft 7:00AM Jun 06, 2023Forecast: 10.3 ft 1:00PM Jun 06, 2023Forecast: 10.2 ft 7:00PM Jun 06, 2023Forecast: 10.1 ft 1:00AM Jun 07, 2023Forecast: 10 ft 7:00AM Jun 07, 2023Forecast: 9.9 ft 1:00PM Jun 07, 2023Forecast: 9.8 ft 7:00PM Jun 07, 2023Forecast: 9.7 ft 1:00AM Jun 08, 2023Forecast: 9.6 ft 7:00AM Jun 08, 2023Forecast: 9.4 ft 1:00PM Jun 08, 2023Forecast: 9.3 ft 7:00PM Jun 08, 2023Forecast: 9.1 ft 1:00AM Jun 09, 2023Forecast: 9 ft 7:00AM Jun 09, 2023Forecast: 8.8 ft 1:00PM Jun 09, 2023Forecast: 8.6 ft 7:00PM Jun 09, 2023Forecast: 8.5 ft 1:00AM Jun 10, 2023Forecast: 8.3 ft 7:00AM Jun 10, 2023Forecast: 8.2 ft 1:00PM Jun 10, 2023Forecast: 8 ft 7:00PM Jun 10, 2023Forecast: 7.8 ft 1:00AM Jun 11, 2023Forecast: 7.7 ft 7:00AM Jun 11, 2023Forecast: 7.6 ft 1:00PM Jun 11, 2023Forecast: 7.4 ft 7:00PM Jun 11, 2023Forecast: 7.3 ft 1:00AM Jun 12, 2023Forecast: 7.2 ft 7:00AM Jun 12, 2023Forecast: 7.1 ft 1:00PM Jun 12, 2023Forecast: 6.9 ft 7:00PM Jun 12, 2023Forecast: 6.8 ft 1:00AM Jun 13, 2023Forecast: 6.7 ft 7:00AM Jun 13, 2023Forecast: 6.5 ft 1:00PM Jun 13, 2023Forecast: 6.4 ft 7:00PM Jun 13, 2023Forecast: 6.3 ft 1:00AM Jun 14, 2023Forecast: 6.2 ft 7:00AM Jun 14, 2023Forecast: 6.1 ft 1:00PM Jun 14, 2023Forecast: 6 ft 7:00PM Jun 14, 2023Forecast: 5.9 ft 1:00AM Jun 15, 2023Forecast: 5.8 ft 7:00AM Jun 15, 2023QLDI2(plotting HTIRG) Graph Created (2:25PM Jun 1, 2023)ObservedForecast (issued 10:21AM Jun 1)Latest observed value: 11.15 ft at 1:30 PM CDT 1-Jun-2023. Flood Stage is 18 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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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: 18
Action Stage: 16
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) 18.86 ft on 04/02/2020
(2) 19.16 ft on 10/17/2019
(3) 17.29 ft on 10/02/2019
(4) 30.15 ft on 06/01/2019
(5) 23.96 ft on 10/12/2018
(6) 19.62 ft on 09/09/2018
(7) 18.47 ft on 07/05/2018
(8) 18.90 ft on 05/16/2018
(9) 18.52 ft on 06/03/2017
(10) 19.33 ft on 05/02/2017
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.
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: 39.902245° N, Longitude: 91.430302° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 18 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
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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
St. Louis Weather Forecast Office
12 Missouri Research Park Drive
St. Charles, MO 63304
(636) 441-8467
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