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Hydrograph River at a Glance Download
Iowa River at Marshalltown Stage (ft)Flow (cfs)Observed: 11.32 ft at 10:00AM May 18, 2022Highest Observation: 11.39 ft at 10:15AM May 18, 2022Observed: 11.33 ft at 10:30AM May 18, 2022Observed: 11.28 ft at 10:45AM May 18, 2022Observed: 11.28 ft at 11:00AM May 18, 2022Observed: 11.28 ft at 11:15AM May 18, 2022Observed: 11.29 ft at 11:30AM May 18, 2022Observed: 11.3 ft at 11:45AM May 18, 2022Observed: 11.29 ft at 12:00PM May 18, 2022Observed: 11.27 ft at 12:15PM May 18, 2022Observed: 11.26 ft at 12:30PM May 18, 2022Observed: 11.28 ft at 12:45PM May 18, 2022Observed: 11.3 ft at 1:00PM May 18, 2022Observed: 11.29 ft at 1:15PM May 18, 2022Observed: 11.28 ft at 1:30PM May 18, 2022Observed: 11.27 ft at 1:45PM May 18, 2022Observed: 11.28 ft at 2:00PM May 18, 2022Observed: 11.27 ft at 2:15PM May 18, 2022Observed: 11.28 ft at 2:30PM May 18, 2022Observed: 11.3 ft at 2:45PM May 18, 2022Observed: 11.26 ft at 3:00PM May 18, 2022Observed: 11.24 ft at 3:15PM May 18, 2022Observed: 11.26 ft at 3:30PM May 18, 2022Observed: 11.24 ft at 3:45PM May 18, 2022Observed: 11.27 ft at 4:00PM May 18, 2022Observed: 11.24 ft at 4:15PM May 18, 2022Observed: 11.23 ft at 4:30PM May 18, 2022Observed: 11.23 ft at 4:45PM May 18, 2022Observed: 11.24 ft at 5:00PM May 18, 2022Observed: 11.26 ft at 5:15PM May 18, 2022Observed: 11.36 ft at 5:30PM May 18, 2022Observed: 11.25 ft at 5:45PM May 18, 2022Observed: 11.26 ft at 6:00PM May 18, 2022Observed: 11.26 ft at 6:15PM May 18, 2022Observed: 11.28 ft at 6:30PM May 18, 2022Observed: 11.28 ft at 6:45PM May 18, 2022Observed: 11.29 ft at 7:00PM May 18, 2022Observed: 11.34 ft at 7:15PM May 18, 2022Observed: 11.38 ft at 7:30PM May 18, 2022Observed: 11.37 ft at 7:45PM May 18, 2022Observed: 11.32 ft at 8:00PM May 18, 2022Observed: 11.27 ft at 8:15PM May 18, 2022Observed: 11.23 ft at 8:30PM May 18, 2022Observed: 11.25 ft at 8:45PM May 18, 2022Observed: 11.27 ft at 9:00PM May 18, 2022Observed: 11.25 ft at 9:15PM May 18, 2022Observed: 11.25 ft at 9:30PM May 18, 2022Observed: 11.27 ft at 9:45PM May 18, 2022Observed: 11.23 ft at 10:00PM May 18, 2022Observed: 11.26 ft at 10:15PM May 18, 2022Observed: 11.26 ft at 10:30PM May 18, 2022Observed: 11.23 ft at 10:45PM May 18, 2022Observed: 11.25 ft at 11:00PM May 18, 2022Observed: 11.23 ft at 11:15PM May 18, 2022Observed: 11.26 ft at 11:30PM May 18, 2022Observed: 11.23 ft at 11:45PM May 18, 2022Observed: 11.23 ft at 12:00AM May 19, 2022Observed: 11.25 ft at 12:15AM May 19, 2022Observed: 11.26 ft at 12:30AM May 19, 2022Observed: 11.24 ft at 12:45AM May 19, 2022Observed: 11.24 ft at 1:00AM May 19, 2022Observed: 11.25 ft at 1:15AM May 19, 2022Highest Observation: 11.39 ft at 1:30AM May 19, 2022Observed: 11.26 ft at 1:45AM May 19, 2022Observed: 11.26 ft at 2:00AM May 19, 2022Observed: 11.23 ft at 2:15AM May 19, 2022Observed: 11.23 ft at 2:30AM May 19, 2022Observed: 11.25 ft at 2:45AM May 19, 2022Observed: 11.26 ft at 3:00AM May 19, 2022Observed: 11.22 ft at 3:15AM May 19, 2022Observed: 11.26 ft at 3:30AM May 19, 2022Observed: 11.31 ft at 3:45AM May 19, 2022Observed: 11.28 ft at 4:00AM May 19, 2022Observed: 11.35 ft at 4:15AM May 19, 2022Observed: 11.25 ft at 4:30AM May 19, 2022Observed: 11.25 ft at 4:45AM May 19, 2022Observed: 11.24 ft at 5:00AM May 19, 2022Observed: 11.24 ft at 5:15AM May 19, 2022Observed: 11.25 ft at 5:30AM May 19, 2022Observed: 11.24 ft at 5:45AM May 19, 2022Observed: 11.24 ft at 6:00AM May 19, 2022Observed: 11.24 ft at 6:15AM May 19, 2022Observed: 11.26 ft at 6:30AM May 19, 2022Observed: 11.26 ft at 6:45AM May 19, 2022Observed: 11.27 ft at 7:00AM May 19, 2022Observed: 11.25 ft at 7:15AM May 19, 2022Observed: 11.25 ft at 7:30AM May 19, 2022Observed: 11.28 ft at 7:45AM May 19, 2022Observed: 11.25 ft at 8:00AM May 19, 2022Observed: 11.23 ft at 8:15AM May 19, 2022Observed: 11.21 ft at 8:30AM May 19, 2022Observed: 11.23 ft at 8:45AM May 19, 2022Observed: 11.24 ft at 9:00AM May 19, 2022Observed: 11.28 ft at 9:15AM May 19, 2022Observed: 11.26 ft at 9:30AM May 19, 2022Observed: 11.23 ft at 9:45AM May 19, 2022Observed: 11.21 ft at 10:00AM May 19, 2022Observed: 11.23 ft at 10:15AM May 19, 2022Observed: 11.22 ft at 10:30AM May 19, 2022Observed: 11.27 ft at 10:45AM May 19, 2022Observed: 11.21 ft at 11:00AM May 19, 2022Observed: 11.22 ft at 11:15AM May 19, 2022Observed: 11.22 ft at 11:30AM May 19, 2022Observed: 11.23 ft at 11:45AM May 19, 2022Observed: 11.3 ft at 12:00PM May 19, 2022Observed: 11.3 ft at 12:15PM May 19, 2022Observed: 11.27 ft at 12:30PM May 19, 2022Observed: 11.24 ft at 12:45PM May 19, 2022Observed: 11.19 ft at 1:00PM May 19, 2022Observed: 11.21 ft at 1:15PM May 19, 2022Observed: 11.18 ft at 1:30PM May 19, 2022Observed: 11.18 ft at 1:45PM May 19, 2022Observed: 11.19 ft at 2:00PM May 19, 2022Observed: 11.19 ft at 2:15PM May 19, 2022Observed: 11.18 ft at 2:30PM May 19, 2022Observed: 11.18 ft at 2:45PM May 19, 2022Observed: 11.19 ft at 3:00PM May 19, 2022Observed: 11.18 ft at 3:15PM May 19, 2022Observed: 11.17 ft at 3:30PM May 19, 2022Observed: 11.18 ft at 3:45PM May 19, 2022Observed: 11.18 ft at 4:00PM May 19, 2022Observed: 11.18 ft at 4:15PM May 19, 2022Observed: 11.22 ft at 4:30PM May 19, 2022Observed: 11.17 ft at 4:45PM May 19, 2022Observed: 11.18 ft at 5:00PM May 19, 2022Observed: 11.16 ft at 5:15PM May 19, 2022Observed: 11.27 ft at 5:30PM May 19, 2022Observed: 11.27 ft at 5:45PM May 19, 2022Observed: 11.16 ft at 6:00PM May 19, 2022Observed: 11.17 ft at 6:15PM May 19, 2022Observed: 11.17 ft at 6:30PM May 19, 2022Observed: 11.33 ft at 6:45PM May 19, 2022Observed: 11.23 ft at 7:00PM May 19, 2022Observed: 11.13 ft at 7:15PM May 19, 2022Observed: 11.13 ft at 7:30PM May 19, 2022Observed: 11.15 ft at 7:45PM May 19, 2022Observed: 11.13 ft at 8:00PM May 19, 2022Observed: 11.12 ft at 8:15PM May 19, 2022Observed: 11.12 ft at 8:30PM May 19, 2022Observed: 11.14 ft at 8:45PM May 19, 2022Observed: 11.15 ft at 9:00PM May 19, 2022Observed: 11.15 ft at 9:15PM May 19, 2022Observed: 11.14 ft at 9:30PM May 19, 2022Observed: 11.14 ft at 9:45PM May 19, 2022Observed: 11.13 ft at 10:00PM May 19, 2022Observed: 11.14 ft at 10:15PM May 19, 2022Observed: 11.14 ft at 10:30PM May 19, 2022Observed: 11.13 ft at 10:45PM May 19, 2022Observed: 11.19 ft at 11:00PM May 19, 2022Observed: 11.14 ft at 11:15PM May 19, 2022Observed: 11.12 ft at 11:30PM May 19, 2022Observed: 11.14 ft at 11:45PM May 19, 2022Observed: 11.12 ft at 12:00AM May 20, 2022Observed: 11.14 ft at 12:15AM May 20, 2022Observed: 11.18 ft at 12:30AM May 20, 2022Observed: 11.19 ft at 12:45AM May 20, 2022Observed: 11.13 ft at 1:00AM May 20, 2022Observed: 11.14 ft at 1:15AM May 20, 2022Observed: 11.12 ft at 1:30AM May 20, 2022Observed: 11.1 ft at 1:45AM May 20, 2022Observed: 11.1 ft at 2:00AM May 20, 2022Observed: 11.13 ft at 2:15AM May 20, 2022Observed: 11.12 ft at 2:30AM May 20, 2022Observed: 11.09 ft at 2:45AM May 20, 2022Observed: 11.12 ft at 3:00AM May 20, 2022Observed: 11.11 ft at 3:15AM May 20, 2022Observed: 11.09 ft at 3:30AM May 20, 2022Observed: 11.09 ft at 3:45AM May 20, 2022Observed: 11.11 ft at 4:00AM May 20, 2022Observed: 11.1 ft at 4:15AM May 20, 2022Observed: 11.11 ft at 4:30AM May 20, 2022Observed: 11.12 ft at 4:45AM May 20, 2022Observed: 11.12 ft at 5:00AM May 20, 2022Observed: 11.11 ft at 5:15AM May 20, 2022Observed: 11.1 ft at 5:30AM May 20, 2022Observed: 11.12 ft at 5:45AM May 20, 2022Observed: 11.11 ft at 6:00AM May 20, 2022Observed: 11.16 ft at 6:15AM May 20, 2022Observed: 11.16 ft at 6:30AM May 20, 2022Observed: 11.14 ft at 6:45AM May 20, 2022Observed: 11.13 ft at 7:00AM May 20, 2022Observed: 11.12 ft at 7:15AM May 20, 2022Observed: 11.14 ft at 7:30AM May 20, 2022Observed: 11.13 ft at 7:45AM May 20, 2022Observed: 11.13 ft at 8:00AM May 20, 2022Observed: 11.12 ft at 8:15AM May 20, 2022Observed: 11.15 ft at 8:30AM May 20, 2022Observed: 11.12 ft at 8:45AM May 20, 2022Observed: 11.12 ft at 9:00AM May 20, 2022Observed: 11.12 ft at 9:15AM May 20, 2022Observed: 11.12 ft at 9:30AM May 20, 2022Observed: 11.11 ft at 9:45AM May 20, 2022Observed: 11.12 ft at 10:00AM May 20, 2022Observed: 11.11 ft at 10:15AM May 20, 2022Observed: 11.1 ft at 10:30AM May 20, 2022Observed: 11.08 ft at 10:45AM May 20, 2022Observed: 11.1 ft at 11:00AM May 20, 2022Observed: 11.11 ft at 11:15AM May 20, 2022Observed: 11.1 ft at 11:30AM May 20, 2022Observed: 11.12 ft at 11:45AM May 20, 2022Observed: 11.11 ft at 12:00PM May 20, 2022Observed: 11.1 ft at 12:15PM May 20, 2022Observed: 11.1 ft at 12:30PM May 20, 2022Observed: 11.11 ft at 12:45PM May 20, 2022Observed: 11.09 ft at 1:00PM May 20, 2022Observed: 11.14 ft at 1:15PM May 20, 2022Observed: 11.06 ft at 1:30PM May 20, 2022Observed: 11.08 ft at 1:45PM May 20, 2022Observed: 11.1 ft at 2:00PM May 20, 2022Observed: 11.09 ft at 2:15PM May 20, 2022Observed: 11.09 ft at 2:30PM May 20, 2022Observed: 11.08 ft at 2:45PM May 20, 2022Observed: 11.07 ft at 3:00PM May 20, 2022Observed: 11.08 ft at 3:15PM May 20, 2022Observed: 11.09 ft at 3:30PM May 20, 2022Observed: 11.1 ft at 3:45PM May 20, 2022Observed: 11.1 ft at 4:00PM May 20, 2022Observed: 11.09 ft at 4:15PM May 20, 2022Observed: 11.08 ft at 4:30PM May 20, 2022Observed: 11.07 ft at 4:45PM May 20, 2022Observed: 11.05 ft at 5:00PM May 20, 2022Observed: 11.04 ft at 5:15PM May 20, 2022Observed: 11.07 ft at 5:30PM May 20, 2022Observed: 11.07 ft at 5:45PM May 20, 2022Observed: 11.07 ft at 6:00PM May 20, 2022Observed: 11.05 ft at 6:15PM May 20, 2022Observed: 11.04 ft at 6:30PM May 20, 2022Observed: 11.06 ft at 6:45PM May 20, 2022Observed: 11.06 ft at 7:00PM May 20, 2022Observed: 11.05 ft at 7:15PM May 20, 2022Observed: 11.04 ft at 7:30PM May 20, 2022Observed: 11.05 ft at 7:45PM May 20, 2022Observed: 11.04 ft at 8:00PM May 20, 2022Observed: 11.06 ft at 8:15PM May 20, 2022Observed: 11.06 ft at 8:30PM May 20, 2022Observed: 11.06 ft at 8:45PM May 20, 2022Observed: 11.05 ft at 9:00PM May 20, 2022Observed: 11.03 ft at 11:15PM May 20, 2022Observed: 11.04 ft at 11:30PM May 20, 2022Observed: 11.05 ft at 11:45PM May 20, 2022Observed: 11.03 ft at 12:00AM May 21, 2022Observed: 11.04 ft at 12:15AM May 21, 2022Observed: 11.02 ft at 12:30AM May 21, 2022Observed: 11.03 ft at 12:45AM May 21, 2022Observed: 11.04 ft at 1:00AM May 21, 2022Observed: 11.04 ft at 1:15AM May 21, 2022Observed: 11.05 ft at 1:30AM May 21, 2022Observed: 11.03 ft at 1:45AM May 21, 2022Observed: 11.03 ft at 2:00AM May 21, 2022Observed: 11.09 ft at 2:15AM May 21, 2022Observed: 11.02 ft at 2:30AM May 21, 2022Observed: 11.03 ft at 2:45AM May 21, 2022Observed: 11.01 ft at 3:00AM May 21, 2022Observed: 11 ft at 3:15AM May 21, 2022Observed: 11.02 ft at 3:30AM May 21, 2022Observed: 11.03 ft at 3:45AM May 21, 2022Observed: 11.02 ft at 4:00AM May 21, 2022Observed: 11.04 ft at 4:15AM May 21, 2022Observed: 11.02 ft at 4:30AM May 21, 2022Observed: 10.99 ft at 4:45AM May 21, 2022Observed: 11.02 ft at 5:00AM May 21, 2022Observed: 11 ft at 5:15AM May 21, 2022Observed: 11 ft at 5:30AM May 21, 2022Observed: 11.02 ft at 5:45AM May 21, 2022Observed: 11.02 ft at 6:00AM May 21, 2022Observed: 11.02 ft at 6:15AM May 21, 2022Observed: 10.99 ft at 6:30AM May 21, 2022Observed: 10.98 ft at 6:45AM May 21, 2022Observed: 10.98 ft at 7:00AM May 21, 2022Observed: 11 ft at 7:15AM May 21, 2022Observed: 10.97 ft at 7:30AM May 21, 2022Observed: 10.98 ft at 7:45AM May 21, 2022Observed: 10.99 ft at 8:00AM May 21, 2022Observed: 10.99 ft at 8:15AM May 21, 2022Observed: 11 ft at 8:30AM May 21, 2022Observed: 11 ft at 8:45AM May 21, 2022Observed: 10.96 ft at 9:00AM May 21, 2022Observed: 10.98 ft at 9:15AM May 21, 2022Observed: 10.98 ft at 9:30AM May 21, 2022Observed: 10.99 ft at 9:45AM May 21, 2022Observed: 10.97 ft at 10:00AM May 21, 2022Observed: 10.97 ft at 10:15AM May 21, 2022Observed: 10.97 ft at 10:30AM May 21, 2022Observed: 10.98 ft at 10:45AM May 21, 2022Observed: 10.98 ft at 11:00AM May 21, 2022Observed: 10.95 ft at 11:15AM May 21, 2022Observed: 10.96 ft at 11:30AM May 21, 2022Observed: 10.97 ft at 11:45AM May 21, 2022Observed: 10.96 ft at 12:00PM May 21, 2022Observed: 10.95 ft at 12:15PM May 21, 2022Observed: 10.96 ft at 12:30PM May 21, 2022Observed: 10.96 ft at 12:45PM May 21, 2022Observed: 10.95 ft at 1:00PM May 21, 2022Observed: 10.94 ft at 1:15PM May 21, 2022Observed: 10.93 ft at 1:30PM May 21, 2022Observed: 10.95 ft at 1:45PM May 21, 2022Observed: 10.94 ft at 2:00PM May 21, 2022Observed: 10.95 ft at 2:15PM May 21, 2022Observed: 10.95 ft at 2:30PM May 21, 2022Observed: 10.92 ft at 2:45PM May 21, 2022Observed: 10.92 ft at 3:00PM May 21, 2022Observed: 10.95 ft at 3:15PM May 21, 2022Observed: 10.92 ft at 3:30PM May 21, 2022Observed: 10.93 ft at 3:45PM May 21, 2022Observed: 10.93 ft at 4:00PM May 21, 2022Observed: 10.93 ft at 4:15PM May 21, 2022Observed: 10.92 ft at 4:30PM May 21, 2022Observed: 10.92 ft at 4:45PM May 21, 2022Observed: 10.93 ft at 5:00PM May 21, 2022Observed: 10.92 ft at 5:15PM May 21, 2022Observed: 10.91 ft at 5:30PM May 21, 2022Observed: 10.9 ft at 5:45PM May 21, 2022Observed: 10.91 ft at 6:00PM May 21, 2022Observed: 10.88 ft at 6:15PM May 21, 2022Observed: 10.91 ft at 6:30PM May 21, 2022Observed: 10.91 ft at 6:45PM May 21, 2022Observed: 10.9 ft at 7:00PM May 21, 2022Observed: 10.88 ft at 7:15PM May 21, 2022Observed: 10.9 ft at 7:30PM May 21, 2022Observed: 10.91 ft at 7:45PM May 21, 2022Observed: 10.89 ft at 8:00PM May 21, 2022Observed: 10.9 ft at 8:15PM May 21, 2022Observed: 10.88 ft at 8:30PM May 21, 2022Observed: 10.88 ft at 8:45PM May 21, 2022Observed: 10.88 ft at 9:00PM May 21, 2022Observed: 10.89 ft at 9:15PM May 21, 2022Observed: 10.89 ft at 9:30PM May 21, 2022Observed: 10.89 ft at 9:45PM May 21, 2022Observed: 10.89 ft at 10:00PM May 21, 2022Observed: 10.91 ft at 10:15PM May 21, 2022Observed: 10.88 ft at 10:30PM May 21, 2022Observed: 10.89 ft at 10:45PM May 21, 2022Observed: 10.9 ft at 11:00PM May 21, 2022Observed: 10.88 ft at 11:15PM May 21, 2022Observed: 10.89 ft at 11:30PM May 21, 2022Observed: 10.89 ft at 11:45PM May 21, 2022Observed: 10.87 ft at 12:00AM May 22, 2022Observed: 10.87 ft at 12:15AM May 22, 2022Observed: 10.85 ft at 12:30AM May 22, 2022Observed: 10.85 ft at 12:45AM May 22, 2022Observed: 10.86 ft at 1:00AM May 22, 2022Observed: 10.85 ft at 1:15AM May 22, 2022Observed: 10.87 ft at 1:30AM May 22, 2022Observed: 10.87 ft at 1:45AM May 22, 2022Observed: 10.83 ft at 2:00AM May 22, 2022Observed: 10.84 ft at 2:15AM May 22, 2022Observed: 10.87 ft at 2:30AM May 22, 2022Observed: 10.87 ft at 2:45AM May 22, 2022Observed: 10.86 ft at 3:00AM May 22, 2022Observed: 10.85 ft at 3:15AM May 22, 2022Observed: 10.87 ft at 3:30AM May 22, 2022Observed: 10.86 ft at 3:45AM May 22, 2022Observed: 10.86 ft at 4:00AM May 22, 2022Observed: 10.87 ft at 4:15AM May 22, 2022Observed: 10.83 ft at 4:30AM May 22, 2022Observed: 10.86 ft at 4:45AM May 22, 2022Observed: 10.86 ft at 5:00AM May 22, 2022Observed: 10.84 ft at 5:15AM May 22, 2022Observed: 10.84 ft at 5:30AM May 22, 2022Observed: 10.85 ft at 5:45AM May 22, 2022Observed: 10.86 ft at 6:00AM May 22, 2022Observed: 10.85 ft at 6:15AM May 22, 2022Observed: 10.85 ft at 6:30AM May 22, 2022Observed: 10.87 ft at 6:45AM May 22, 2022Observed: 10.84 ft at 7:00AM May 22, 2022Observed: 10.83 ft at 7:15AM May 22, 2022Observed: 10.82 ft at 7:30AM May 22, 2022Observed: 10.83 ft at 7:45AM May 22, 2022Observed: 10.84 ft at 8:00AM May 22, 2022Observed: 10.82 ft at 8:15AM May 22, 2022Observed: 10.84 ft at 8:30AM May 22, 2022Observed: 10.85 ft at 8:45AM May 22, 2022Observed: 10.84 ft at 9:00AM May 22, 2022Observed: 10.84 ft at 9:15AM May 22, 2022Observed: 10.83 ft at 9:30AM May 22, 2022Observed: 10.84 ft at 9:45AM May 22, 2022Observed: 10.84 ft at 10:00AM May 22, 2022Observed: 10.86 ft at 10:15AM May 22, 2022Observed: 10.85 ft at 10:30AM May 22, 2022Observed: 10.84 ft at 10:45AM May 22, 2022Observed: 10.84 ft at 11:00AM May 22, 2022Observed: 10.82 ft at 11:15AM May 22, 2022Observed: 10.83 ft at 11:30AM May 22, 2022Observed: 10.83 ft at 11:45AM May 22, 2022Observed: 10.84 ft at 12:00PM May 22, 2022Observed: 10.83 ft at 12:15PM May 22, 2022Observed: 10.84 ft at 12:30PM May 22, 2022Observed: 10.84 ft at 12:45PM May 22, 2022Observed: 10.82 ft at 1:00PM May 22, 2022Observed: 10.8 ft at 1:15PM May 22, 2022Observed: 10.82 ft at 1:30PM May 22, 2022Observed: 10.8 ft at 1:45PM May 22, 2022Observed: 10.8 ft at 2:00PM May 22, 2022Observed: 10.79 ft at 2:15PM May 22, 2022Observed: 10.79 ft at 2:30PM May 22, 2022Observed: 10.8 ft at 2:45PM May 22, 2022Observed: 10.81 ft at 3:00PM May 22, 2022Observed: 10.81 ft at 3:15PM May 22, 2022Observed: 10.8 ft at 3:30PM May 22, 2022Observed: 10.79 ft at 3:45PM May 22, 2022Observed: 10.79 ft at 4:00PM May 22, 2022Observed: 10.81 ft at 4:15PM May 22, 2022Observed: 10.81 ft at 4:30PM May 22, 2022Observed: 10.8 ft at 4:45PM May 22, 2022Observed: 10.8 ft at 5:00PM May 22, 2022Observed: 10.81 ft at 5:15PM May 22, 2022Observed: 10.78 ft at 5:30PM May 22, 2022Observed: 10.79 ft at 5:45PM May 22, 2022Observed: 10.79 ft at 6:00PM May 22, 2022Observed: 10.79 ft at 6:15PM May 22, 2022Observed: 10.8 ft at 6:30PM May 22, 2022Observed: 10.78 ft at 6:45PM May 22, 2022Observed: 10.78 ft at 7:00PM May 22, 2022Observed: 10.8 ft at 7:15PM May 22, 2022Observed: 10.79 ft at 7:30PM May 22, 2022Observed: 10.79 ft at 7:45PM May 22, 2022Observed: 10.78 ft at 8:00PM May 22, 2022Observed: 10.77 ft at 8:15PM May 22, 2022Observed: 10.77 ft at 8:30PM May 22, 2022Observed: 10.79 ft at 8:45PM May 22, 2022Observed: 10.76 ft at 9:00PM May 22, 2022Observed: 10.75 ft at 9:15PM May 22, 2022Observed: 10.75 ft at 9:30PM May 22, 2022Observed: 10.75 ft at 9:45PM May 22, 2022Observed: 10.74 ft at 10:00PM May 22, 2022Observed: 10.75 ft at 10:15PM May 22, 2022Observed: 10.76 ft at 10:30PM May 22, 2022Observed: 10.74 ft at 10:45PM May 22, 2022Observed: 10.73 ft at 11:00PM May 22, 2022Observed: 10.74 ft at 11:15PM May 22, 2022Observed: 10.76 ft at 11:30PM May 22, 2022Observed: 10.74 ft at 11:45PM May 22, 2022Observed: 10.74 ft at 12:00AM May 23, 2022Observed: 10.74 ft at 12:15AM May 23, 2022Observed: 10.73 ft at 12:30AM May 23, 2022Observed: 10.73 ft at 12:45AM May 23, 2022Observed: 10.73 ft at 1:00AM May 23, 2022Observed: 10.73 ft at 1:15AM May 23, 2022Observed: 10.72 ft at 1:30AM May 23, 2022Observed: 10.71 ft at 1:45AM May 23, 2022Observed: 10.71 ft at 2:00AM May 23, 2022Observed: 10.7 ft at 2:15AM May 23, 2022Observed: 10.71 ft at 2:30AM May 23, 2022Observed: 10.7 ft at 2:45AM May 23, 2022Observed: 10.72 ft at 3:00AM May 23, 2022Observed: 10.7 ft at 3:15AM May 23, 2022Observed: 10.68 ft at 3:30AM May 23, 2022Observed: 10.71 ft at 3:45AM May 23, 2022Observed: 10.7 ft at 4:00AM May 23, 2022Observed: 10.71 ft at 4:15AM May 23, 2022Observed: 10.7 ft at 4:30AM May 23, 2022Observed: 10.7 ft at 4:45AM May 23, 2022Observed: 10.71 ft at 5:00AM May 23, 2022Observed: 10.71 ft at 5:15AM May 23, 2022Observed: 10.7 ft at 5:30AM May 23, 2022Observed: 10.71 ft at 5:45AM May 23, 2022Observed: 10.69 ft at 6:00AM May 23, 2022Observed: 10.67 ft at 6:15AM May 23, 2022Observed: 10.68 ft at 6:30AM May 23, 2022Observed: 10.69 ft at 6:45AM May 23, 2022Observed: 10.69 ft at 7:00AM May 23, 2022Observed: 10.7 ft at 7:15AM May 23, 2022Observed: 10.7 ft at 7:30AM May 23, 2022Observed: 10.71 ft at 7:45AM May 23, 2022Observed: 10.7 ft at 8:00AM May 23, 2022Observed: 10.71 ft at 8:15AM May 23, 2022Observed: 10.69 ft at 8:30AM May 23, 2022Observed: 10.7 ft at 8:45AM May 23, 2022Observed: 10.7 ft at 9:00AM May 23, 2022Highest Forecast: 10.8 ft 1:00PM May 23, 2022Highest Forecast: 10.8 ft 7:00PM May 23, 2022Highest Forecast: 10.8 ft 1:00AM May 24, 2022Highest Forecast: 10.8 ft 7:00AM May 24, 2022Forecast: 10.7 ft 1:00PM May 24, 2022Forecast: 10.7 ft 7:00PM May 24, 2022Forecast: 10.7 ft 1:00AM May 25, 2022Forecast: 10.7 ft 7:00AM May 25, 2022Forecast: 10.7 ft 1:00PM May 25, 2022Forecast: 10.7 ft 7:00PM May 25, 2022Forecast: 10.6 ft 1:00AM May 26, 2022Forecast: 10.6 ft 7:00AM May 26, 2022Forecast: 10.6 ft 1:00PM May 26, 2022Forecast: 10.6 ft 7:00PM May 26, 2022Forecast: 10.6 ft 1:00AM May 27, 2022Forecast: 10.6 ft 7:00AM May 27, 2022Forecast: 10.6 ft 1:00PM May 27, 2022Forecast: 10.6 ft 7:00PM May 27, 2022Forecast: 10.6 ft 1:00AM May 28, 2022Forecast: 10.5 ft 7:00AM May 28, 2022Forecast: 10.5 ft 1:00PM May 28, 2022Forecast: 10.5 ft 7:00PM May 28, 2022Forecast: 10.5 ft 1:00AM May 29, 2022Forecast: 10.5 ft 7:00AM May 29, 2022Forecast: 10.5 ft 1:00PM May 29, 2022Forecast: 10.5 ft 7:00PM May 29, 2022Forecast: 10.5 ft 1:00AM May 30, 2022Forecast: 10.4 ft 7:00AM May 30, 2022USGS--Water Resources of the United StatesMIWI4(plotting HGIRG) Graph Created (9:48AM May 23, 2022)ObservedForecast (issued 9:35AM May 23)Latest observed value: 10.7 ft at 9:00 AM CDT 23-May-2022. Flood Stage is 19 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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Metadata
NOTE: Forecasts for the Iowa River at Marshalltown are issued routinely during the warm season, and as needed at other times of the year.
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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - near Tama Hwy E49
Flood Categories (in feet)
Major Flood Stage: 26
Moderate Flood Stage: 23
Flood Stage: 19
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 22.25 ft on 07/02/2014
(2) 22.08 ft on 05/30/2013
(3) 21.79 ft on 06/13/2008
(4) 21.60 ft on 06/10/2008
(5) 21.44 ft on 05/27/2013
(6) 20.77 ft on 08/17/1993
(7) 20.55 ft on 07/10/1993
(8) 20.49 ft on 05/31/2008
(9) 20.38 ft on 12/15/2015
(10) 20.38 ft on 06/18/1990
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.32 ft on 03/15/2019
(2) 18.25 ft on 09/27/2018
(3) 17.63 ft on 10/01/2016
(4) 18.95 ft on 09/28/2016
(5) 15.81 ft on 06/05/2016
(6) 16.94 ft on 02/20/2016
(7) 20.38 ft on 12/15/2015
(8) 19.99 ft on 08/30/2015
(9) 15.76 ft on 07/07/2015
(10) 22.25 ft on 07/02/2014
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.40 ft on 10/20/1974
(2) 2.65 ft on 12/04/1974
(3) 4.30 ft on 09/29/1976
(4) 6.28 ft on 10/03/1989
(5) 6.49 ft on 03/01/1989
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
26 Water reaches the top of the earthen levee along the river at Iowa 14.
22 Water reaches the low beams of the Iowa 14 bridge.
21.5 Water affects several roads east of Marshalltown...including U.S. 30...East Main Street Road and Zeller Avenue.
21.4 Water covers both lanes of Iowa 14 north of Marshalltown.
21.2 Water covers several gravel roads north and northwest of Marshalltown...including Stanley Mill Road...North Center Street...Oaks Avenue and Prairie Avenue.
21 Iowa 330 south of Albion...near Timmons Grove Park...is closed. Most of Timmons Grove County Park floods.
20.5 In Albion...parts of Marsh Avenue...Stanley Mill Road and 160th Street flood. Iowa 330 is threatened near the Linn Creek overpass which is located west of Marshalltown about 2 miles northeast of the US 30 junction.
20 Water approaches the top of the concrete bridge piers of the Iowa 14 bridge.
19.5 The southbound lanes of Iowa 14 flood. Iowa 330 south of Albion floods.
19 Water affects Iowa 14 north of the river as well as Iowa 330 south of Albion.
18 Widespread agricultural and lowland flooding occur along Iowa 330 south of Albion.
17 Roads within Timmons Grove County Park are threatened as is the bicycle path along 18th Avenue in Marshalltown.
16.5 The underside of the primary concrete support span of Iowa 14 is affected.
16 The access road serving north portions of Timmons Grove County Park floods.
15 Water approaches the bridge crossing from the County Three Bridges Road east of Marshalltown. Water affects agricultural land.
14 There is lowland flooding north of town near Iowa 14.
About This Location Collapse

Latitude: 42.065821° N, Longitude: 92.907700° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 19 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 29 853.10 ft Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
  • USGS 7-Day Streamflow Duration Hydrograph for this location:
    Duration Hydrograph

    Duration Hydrograph Legend


  • USGS Cumulative Streamflow Hydrograph for this location:
    Duration Hydrograph of Cumulative Streamflow
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614
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