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Hydrograph River at a Glance Download
Shell Rock River (Northeast IA) at Shell Rock Stage (ft)Flow (cfs)Highest Observation: 11.18 ft at 8:00AM May 15, 2018Highest Observation: 11.18 ft at 8:15AM May 15, 2018Highest Observation: 11.18 ft at 8:30AM May 15, 2018Highest Observation: 11.18 ft at 8:45AM May 15, 2018Highest Observation: 11.18 ft at 9:00AM May 15, 2018Highest Observation: 11.18 ft at 9:15AM May 15, 2018Observed: 11.17 ft at 9:30AM May 15, 2018Observed: 11.17 ft at 9:45AM May 15, 2018Observed: 11.17 ft at 10:00AM May 15, 2018Observed: 11.17 ft at 10:15AM May 15, 2018Observed: 11.16 ft at 10:30AM May 15, 2018Observed: 11.16 ft at 10:45AM May 15, 2018Observed: 11.16 ft at 11:00AM May 15, 2018Observed: 11.16 ft at 11:15AM May 15, 2018Observed: 11.15 ft at 11:30AM May 15, 2018Observed: 11.15 ft at 11:45AM May 15, 2018Observed: 11.14 ft at 12:00PM May 15, 2018Observed: 11.14 ft at 12:15PM May 15, 2018Observed: 11.14 ft at 12:30PM May 15, 2018Observed: 11.14 ft at 12:45PM May 15, 2018Observed: 11.14 ft at 1:00PM May 15, 2018Observed: 11.13 ft at 1:15PM May 15, 2018Observed: 11.13 ft at 1:30PM May 15, 2018Observed: 11.13 ft at 1:45PM May 15, 2018Observed: 11.13 ft at 2:00PM May 15, 2018Observed: 11.13 ft at 2:15PM May 15, 2018Observed: 11.12 ft at 2:30PM May 15, 2018Observed: 11.12 ft at 2:45PM May 15, 2018Observed: 11.11 ft at 3:00PM May 15, 2018Observed: 11.11 ft at 3:15PM May 15, 2018Observed: 11.11 ft at 3:30PM May 15, 2018Observed: 11.1 ft at 3:45PM May 15, 2018Observed: 11.1 ft at 4:00PM May 15, 2018Observed: 11.1 ft at 4:15PM May 15, 2018Observed: 11.1 ft at 4:30PM May 15, 2018Observed: 11.1 ft at 4:45PM May 15, 2018Observed: 11.09 ft at 5:00PM May 15, 2018Observed: 11.09 ft at 5:15PM May 15, 2018Observed: 11.09 ft at 5:30PM May 15, 2018Observed: 11.09 ft at 5:45PM May 15, 2018Observed: 11.08 ft at 6:00PM May 15, 2018Observed: 11.08 ft at 6:15PM May 15, 2018Observed: 11.08 ft at 6:30PM May 15, 2018Observed: 11.07 ft at 6:45PM May 15, 2018Observed: 11.07 ft at 7:00PM May 15, 2018Observed: 11.07 ft at 7:15PM May 15, 2018Observed: 11.06 ft at 7:30PM May 15, 2018Observed: 11.06 ft at 7:45PM May 15, 2018Observed: 11.06 ft at 8:00PM May 15, 2018Observed: 11.05 ft at 8:15PM May 15, 2018Observed: 11.05 ft at 8:30PM May 15, 2018Observed: 11.05 ft at 8:45PM May 15, 2018Observed: 11.05 ft at 9:00PM May 15, 2018Observed: 11.04 ft at 9:15PM May 15, 2018Observed: 11.04 ft at 9:30PM May 15, 2018Observed: 11.04 ft at 9:45PM May 15, 2018Observed: 11.04 ft at 10:00PM May 15, 2018Observed: 11.03 ft at 10:15PM May 15, 2018Observed: 11.03 ft at 10:30PM May 15, 2018Observed: 11.03 ft at 10:45PM May 15, 2018Observed: 11.02 ft at 11:00PM May 15, 2018Observed: 11.02 ft at 11:15PM May 15, 2018Observed: 11.02 ft at 11:30PM May 15, 2018Observed: 11.02 ft at 11:45PM May 15, 2018Observed: 11.02 ft at 12:00AM May 16, 2018Observed: 11.01 ft at 12:15AM May 16, 2018Observed: 11.01 ft at 12:30AM May 16, 2018Observed: 11.01 ft at 12:45AM May 16, 2018Observed: 11 ft at 1:00AM May 16, 2018Observed: 11 ft at 1:15AM May 16, 2018Observed: 11 ft at 1:30AM May 16, 2018Observed: 11 ft at 1:45AM May 16, 2018Observed: 10.99 ft at 2:00AM May 16, 2018Observed: 10.99 ft at 2:15AM May 16, 2018Observed: 10.99 ft at 2:30AM May 16, 2018Observed: 10.99 ft at 2:45AM May 16, 2018Observed: 10.98 ft at 3:00AM May 16, 2018Observed: 10.98 ft at 3:15AM May 16, 2018Observed: 10.98 ft at 3:30AM May 16, 2018Observed: 10.98 ft at 3:45AM May 16, 2018Observed: 10.98 ft at 4:00AM May 16, 2018Observed: 10.97 ft at 4:15AM May 16, 2018Observed: 10.97 ft at 4:30AM May 16, 2018Observed: 10.97 ft at 4:45AM May 16, 2018Observed: 10.96 ft at 5:00AM May 16, 2018Observed: 10.96 ft at 5:15AM May 16, 2018Observed: 10.96 ft at 5:30AM May 16, 2018Observed: 10.96 ft at 5:45AM May 16, 2018Observed: 10.95 ft at 6:00AM May 16, 2018Observed: 10.95 ft at 6:15AM May 16, 2018Observed: 10.95 ft at 6:30AM May 16, 2018Observed: 10.95 ft at 6:45AM May 16, 2018Observed: 10.94 ft at 7:00AM May 16, 2018Observed: 10.94 ft at 7:15AM May 16, 2018Observed: 10.94 ft at 7:30AM May 16, 2018Observed: 10.94 ft at 7:45AM May 16, 2018Observed: 10.93 ft at 8:00AM May 16, 2018Observed: 10.93 ft at 8:15AM May 16, 2018Observed: 10.93 ft at 8:30AM May 16, 2018Observed: 10.92 ft at 8:45AM May 16, 2018Observed: 10.92 ft at 9:00AM May 16, 2018Observed: 10.92 ft at 9:15AM May 16, 2018Observed: 10.92 ft at 9:30AM May 16, 2018Observed: 10.91 ft at 9:45AM May 16, 2018Observed: 10.91 ft at 10:00AM May 16, 2018Observed: 10.91 ft at 10:15AM May 16, 2018Observed: 10.91 ft at 10:30AM May 16, 2018Observed: 10.91 ft at 10:45AM May 16, 2018Observed: 10.9 ft at 11:00AM May 16, 2018Observed: 10.9 ft at 11:15AM May 16, 2018Observed: 10.89 ft at 11:30AM May 16, 2018Observed: 10.89 ft at 11:45AM May 16, 2018Observed: 10.89 ft at 12:00PM May 16, 2018Observed: 10.89 ft at 12:15PM May 16, 2018Observed: 10.88 ft at 12:30PM May 16, 2018Observed: 10.88 ft at 12:45PM May 16, 2018Observed: 10.88 ft at 1:00PM May 16, 2018Observed: 10.88 ft at 1:15PM May 16, 2018Observed: 10.88 ft at 1:30PM May 16, 2018Observed: 10.87 ft at 1:45PM May 16, 2018Observed: 10.87 ft at 2:00PM May 16, 2018Observed: 10.87 ft at 2:15PM May 16, 2018Observed: 10.86 ft at 2:30PM May 16, 2018Observed: 10.86 ft at 2:45PM May 16, 2018Observed: 10.86 ft at 3:00PM May 16, 2018Observed: 10.86 ft at 3:15PM May 16, 2018Observed: 10.85 ft at 3:30PM May 16, 2018Observed: 10.85 ft at 3:45PM May 16, 2018Observed: 10.85 ft at 4:00PM May 16, 2018Observed: 10.84 ft at 4:15PM May 16, 2018Observed: 10.84 ft at 4:30PM May 16, 2018Observed: 10.84 ft at 4:45PM May 16, 2018Observed: 10.84 ft at 5:00PM May 16, 2018Observed: 10.83 ft at 5:15PM May 16, 2018Observed: 10.83 ft at 5:30PM May 16, 2018Observed: 10.83 ft at 5:45PM May 16, 2018Observed: 10.82 ft at 6:00PM May 16, 2018Observed: 10.82 ft at 6:15PM May 16, 2018Observed: 10.82 ft at 6:30PM May 16, 2018Observed: 10.82 ft at 6:45PM May 16, 2018Observed: 10.81 ft at 7:00PM May 16, 2018Observed: 10.81 ft at 7:15PM May 16, 2018Observed: 10.81 ft at 7:30PM May 16, 2018Observed: 10.81 ft at 7:45PM May 16, 2018Observed: 10.8 ft at 8:00PM May 16, 2018Observed: 10.8 ft at 8:15PM May 16, 2018Observed: 10.8 ft at 8:30PM May 16, 2018Observed: 10.8 ft at 8:45PM May 16, 2018Observed: 10.79 ft at 9:00PM May 16, 2018Observed: 10.79 ft at 9:15PM May 16, 2018Observed: 10.79 ft at 9:30PM May 16, 2018Observed: 10.78 ft at 9:45PM May 16, 2018Observed: 10.78 ft at 10:00PM May 16, 2018Observed: 10.78 ft at 10:15PM May 16, 2018Observed: 10.78 ft at 10:30PM May 16, 2018Observed: 10.78 ft at 10:45PM May 16, 2018Observed: 10.78 ft at 11:00PM May 16, 2018Observed: 10.77 ft at 11:15PM May 16, 2018Observed: 10.77 ft at 11:30PM May 16, 2018Observed: 10.77 ft at 11:45PM May 16, 2018Observed: 10.77 ft at 12:00AM May 17, 2018Observed: 10.76 ft at 12:15AM May 17, 2018Observed: 10.76 ft at 12:30AM May 17, 2018Observed: 10.76 ft at 12:45AM May 17, 2018Observed: 10.76 ft at 1:00AM May 17, 2018Observed: 10.75 ft at 1:15AM May 17, 2018Observed: 10.75 ft at 1:30AM May 17, 2018Observed: 10.75 ft at 1:45AM May 17, 2018Observed: 10.75 ft at 2:00AM May 17, 2018Observed: 10.74 ft at 2:15AM May 17, 2018Observed: 10.74 ft at 2:30AM May 17, 2018Observed: 10.74 ft at 2:45AM May 17, 2018Observed: 10.74 ft at 3:00AM May 17, 2018Observed: 10.74 ft at 3:15AM May 17, 2018Observed: 10.73 ft at 3:30AM May 17, 2018Observed: 10.73 ft at 3:45AM May 17, 2018Observed: 10.73 ft at 4:00AM May 17, 2018Observed: 10.73 ft at 4:15AM May 17, 2018Observed: 10.72 ft at 4:30AM May 17, 2018Observed: 10.72 ft at 4:45AM May 17, 2018Observed: 10.72 ft at 5:00AM May 17, 2018Observed: 10.72 ft at 5:15AM May 17, 2018Observed: 10.72 ft at 5:30AM May 17, 2018Observed: 10.71 ft at 5:45AM May 17, 2018Observed: 10.71 ft at 6:00AM May 17, 2018Observed: 10.71 ft at 6:15AM May 17, 2018Observed: 10.7 ft at 6:30AM May 17, 2018Observed: 10.7 ft at 6:45AM May 17, 2018Observed: 10.69 ft at 8:00AM May 17, 2018Observed: 10.69 ft at 8:15AM May 17, 2018Observed: 10.69 ft at 8:30AM May 17, 2018Observed: 10.68 ft at 8:45AM May 17, 2018Observed: 10.68 ft at 9:00AM May 17, 2018Observed: 10.68 ft at 9:15AM May 17, 2018Observed: 10.68 ft at 9:30AM May 17, 2018Observed: 10.68 ft at 9:45AM May 17, 2018Observed: 10.67 ft at 10:00AM May 17, 2018Observed: 10.67 ft at 10:15AM May 17, 2018Observed: 10.67 ft at 10:30AM May 17, 2018Observed: 10.67 ft at 10:45AM May 17, 2018Observed: 10.66 ft at 11:00AM May 17, 2018Observed: 10.66 ft at 11:15AM May 17, 2018Observed: 10.66 ft at 11:30AM May 17, 2018Observed: 10.66 ft at 11:45AM May 17, 2018Observed: 10.65 ft at 12:00PM May 17, 2018Observed: 10.65 ft at 12:15PM May 17, 2018Observed: 10.65 ft at 12:30PM May 17, 2018Observed: 10.65 ft at 12:45PM May 17, 2018Observed: 10.65 ft at 1:00PM May 17, 2018Observed: 10.64 ft at 1:15PM May 17, 2018Observed: 10.64 ft at 1:30PM May 17, 2018Observed: 10.64 ft at 1:45PM May 17, 2018Observed: 10.63 ft at 2:00PM May 17, 2018Observed: 10.63 ft at 2:15PM May 17, 2018Observed: 10.63 ft at 2:30PM May 17, 2018Observed: 10.63 ft at 2:45PM May 17, 2018Observed: 10.63 ft at 3:00PM May 17, 2018Observed: 10.63 ft at 3:15PM May 17, 2018Observed: 10.62 ft at 3:30PM May 17, 2018Observed: 10.62 ft at 3:45PM May 17, 2018Observed: 10.61 ft at 4:00PM May 17, 2018Observed: 10.61 ft at 4:15PM May 17, 2018Observed: 10.61 ft at 4:30PM May 17, 2018Observed: 10.61 ft at 4:45PM May 17, 2018Observed: 10.6 ft at 5:00PM May 17, 2018Observed: 10.6 ft at 5:15PM May 17, 2018Observed: 10.6 ft at 5:30PM May 17, 2018Observed: 10.6 ft at 5:45PM May 17, 2018Observed: 10.6 ft at 6:00PM May 17, 2018Observed: 10.59 ft at 6:15PM May 17, 2018Observed: 10.59 ft at 6:30PM May 17, 2018Observed: 10.59 ft at 6:45PM May 17, 2018Observed: 10.58 ft at 7:00PM May 17, 2018Observed: 10.58 ft at 7:15PM May 17, 2018Observed: 10.58 ft at 7:30PM May 17, 2018Observed: 10.58 ft at 7:45PM May 17, 2018Observed: 10.58 ft at 8:00PM May 17, 2018Observed: 10.57 ft at 8:15PM May 17, 2018Observed: 10.57 ft at 8:30PM May 17, 2018Observed: 10.57 ft at 8:45PM May 17, 2018Observed: 10.57 ft at 9:00PM May 17, 2018Observed: 10.56 ft at 9:15PM May 17, 2018Observed: 10.56 ft at 9:30PM May 17, 2018Observed: 10.56 ft at 9:45PM May 17, 2018Observed: 10.56 ft at 10:00PM May 17, 2018Observed: 10.56 ft at 10:15PM May 17, 2018Observed: 10.55 ft at 10:30PM May 17, 2018Observed: 10.55 ft at 10:45PM May 17, 2018Observed: 10.55 ft at 11:00PM May 17, 2018Observed: 10.55 ft at 11:15PM May 17, 2018Observed: 10.54 ft at 11:30PM May 17, 2018Observed: 10.54 ft at 11:45PM May 17, 2018Observed: 10.54 ft at 12:00AM May 18, 2018Observed: 10.54 ft at 12:15AM May 18, 2018Observed: 10.54 ft at 12:30AM May 18, 2018Observed: 10.53 ft at 12:45AM May 18, 2018Observed: 10.53 ft at 1:00AM May 18, 2018Observed: 10.53 ft at 1:15AM May 18, 2018Observed: 10.53 ft at 1:30AM May 18, 2018Observed: 10.52 ft at 1:45AM May 18, 2018Observed: 10.52 ft at 2:00AM May 18, 2018Observed: 10.52 ft at 2:15AM May 18, 2018Observed: 10.52 ft at 2:30AM May 18, 2018Observed: 10.52 ft at 2:45AM May 18, 2018Observed: 10.52 ft at 3:00AM May 18, 2018Observed: 10.51 ft at 3:15AM May 18, 2018Observed: 10.51 ft at 3:30AM May 18, 2018Observed: 10.51 ft at 3:45AM May 18, 2018Observed: 10.51 ft at 4:00AM May 18, 2018Observed: 10.51 ft at 4:15AM May 18, 2018Observed: 10.5 ft at 4:30AM May 18, 2018Observed: 10.5 ft at 4:45AM May 18, 2018Observed: 10.5 ft at 5:00AM May 18, 2018Observed: 10.5 ft at 5:15AM May 18, 2018Observed: 10.49 ft at 5:30AM May 18, 2018Observed: 10.49 ft at 5:45AM May 18, 2018Observed: 10.49 ft at 6:00AM May 18, 2018Observed: 10.49 ft at 6:15AM May 18, 2018Observed: 10.49 ft at 6:30AM May 18, 2018Observed: 10.48 ft at 6:45AM May 18, 2018Observed: 10.48 ft at 7:00AM May 18, 2018Observed: 10.48 ft at 7:15AM May 18, 2018Observed: 10.48 ft at 7:30AM May 18, 2018Observed: 10.48 ft at 7:45AM May 18, 2018Observed: 10.48 ft at 8:00AM May 18, 2018Observed: 10.47 ft at 8:15AM May 18, 2018Observed: 10.47 ft at 8:30AM May 18, 2018Observed: 10.47 ft at 8:45AM May 18, 2018Observed: 10.46 ft at 9:00AM May 18, 2018Observed: 10.46 ft at 9:15AM May 18, 2018Observed: 10.46 ft at 9:30AM May 18, 2018Observed: 10.46 ft at 9:45AM May 18, 2018Observed: 10.46 ft at 10:00AM May 18, 2018Observed: 10.45 ft at 10:15AM May 18, 2018Observed: 10.45 ft at 10:30AM May 18, 2018Observed: 10.45 ft at 10:45AM May 18, 2018Observed: 10.45 ft at 11:00AM May 18, 2018Observed: 10.44 ft at 11:15AM May 18, 2018Observed: 10.44 ft at 11:30AM May 18, 2018Observed: 10.44 ft at 11:45AM May 18, 2018Observed: 10.44 ft at 12:00PM May 18, 2018Observed: 10.44 ft at 12:15PM May 18, 2018Observed: 10.43 ft at 12:30PM May 18, 2018Observed: 10.43 ft at 12:45PM May 18, 2018Observed: 10.43 ft at 1:00PM May 18, 2018Observed: 10.42 ft at 1:15PM May 18, 2018Observed: 10.42 ft at 1:30PM May 18, 2018Observed: 10.42 ft at 1:45PM May 18, 2018Observed: 10.42 ft at 2:00PM May 18, 2018Observed: 10.42 ft at 2:15PM May 18, 2018Observed: 10.41 ft at 2:30PM May 18, 2018Observed: 10.41 ft at 2:45PM May 18, 2018Observed: 10.41 ft at 3:00PM May 18, 2018Observed: 10.41 ft at 3:15PM May 18, 2018Observed: 10.4 ft at 3:30PM May 18, 2018Observed: 10.4 ft at 3:45PM May 18, 2018Observed: 10.4 ft at 4:00PM May 18, 2018Observed: 10.4 ft at 4:15PM May 18, 2018Observed: 10.39 ft at 4:30PM May 18, 2018Observed: 10.39 ft at 4:45PM May 18, 2018Observed: 10.39 ft at 5:00PM May 18, 2018Observed: 10.39 ft at 5:15PM May 18, 2018Observed: 10.39 ft at 5:30PM May 18, 2018Observed: 10.38 ft at 5:45PM May 18, 2018Observed: 10.38 ft at 6:00PM May 18, 2018Observed: 10.38 ft at 6:15PM May 18, 2018Observed: 10.38 ft at 6:30PM May 18, 2018Observed: 10.38 ft at 6:45PM May 18, 2018Observed: 10.38 ft at 7:00PM May 18, 2018Observed: 10.37 ft at 7:15PM May 18, 2018Observed: 10.37 ft at 7:30PM May 18, 2018Observed: 10.36 ft at 7:45PM May 18, 2018Observed: 10.36 ft at 8:00PM May 18, 2018Observed: 10.36 ft at 8:15PM May 18, 2018Observed: 10.36 ft at 8:30PM May 18, 2018Observed: 10.36 ft at 8:45PM May 18, 2018Observed: 10.35 ft at 9:00PM May 18, 2018Observed: 10.35 ft at 9:15PM May 18, 2018Observed: 10.35 ft at 9:30PM May 18, 2018Observed: 10.35 ft at 9:45PM May 18, 2018Observed: 10.34 ft at 10:00PM May 18, 2018Observed: 10.34 ft at 10:15PM May 18, 2018Observed: 10.34 ft at 10:30PM May 18, 2018Observed: 10.34 ft at 10:45PM May 18, 2018Observed: 10.34 ft at 11:00PM May 18, 2018Observed: 10.33 ft at 11:15PM May 18, 2018Observed: 10.33 ft at 11:30PM May 18, 2018Observed: 10.33 ft at 11:45PM May 18, 2018Observed: 10.33 ft at 12:00AM May 19, 2018Observed: 10.33 ft at 12:15AM May 19, 2018Observed: 10.33 ft at 12:30AM May 19, 2018Observed: 10.32 ft at 12:45AM May 19, 2018Observed: 10.32 ft at 1:00AM May 19, 2018Observed: 10.32 ft at 1:15AM May 19, 2018Observed: 10.32 ft at 1:30AM May 19, 2018Observed: 10.32 ft at 1:45AM May 19, 2018Observed: 10.31 ft at 2:00AM May 19, 2018Observed: 10.31 ft at 2:15AM May 19, 2018Observed: 10.31 ft at 2:30AM May 19, 2018Observed: 10.31 ft at 2:45AM May 19, 2018Observed: 10.31 ft at 3:00AM May 19, 2018Observed: 10.3 ft at 3:15AM May 19, 2018Observed: 10.3 ft at 3:30AM May 19, 2018Observed: 10.3 ft at 3:45AM May 19, 2018Observed: 10.3 ft at 4:00AM May 19, 2018Observed: 10.3 ft at 4:15AM May 19, 2018Observed: 10.3 ft at 4:30AM May 19, 2018Observed: 10.3 ft at 4:45AM May 19, 2018Observed: 10.29 ft at 5:00AM May 19, 2018Observed: 10.29 ft at 5:15AM May 19, 2018Observed: 10.29 ft at 5:30AM May 19, 2018Observed: 10.29 ft at 5:45AM May 19, 2018Observed: 10.29 ft at 6:00AM May 19, 2018Observed: 10.28 ft at 6:15AM May 19, 2018Observed: 10.28 ft at 6:30AM May 19, 2018Observed: 10.28 ft at 6:45AM May 19, 2018Observed: 10.28 ft at 7:00AM May 19, 2018Observed: 10.28 ft at 7:15AM May 19, 2018Observed: 10.28 ft at 7:30AM May 19, 2018Observed: 10.27 ft at 7:45AM May 19, 2018Observed: 10.27 ft at 8:00AM May 19, 2018Observed: 10.27 ft at 8:15AM May 19, 2018Observed: 10.27 ft at 8:30AM May 19, 2018Observed: 10.26 ft at 8:45AM May 19, 2018Observed: 10.26 ft at 9:00AM May 19, 2018Observed: 10.26 ft at 9:15AM May 19, 2018Observed: 10.26 ft at 9:30AM May 19, 2018Observed: 10.26 ft at 9:45AM May 19, 2018Observed: 10.26 ft at 10:00AM May 19, 2018Observed: 10.25 ft at 10:15AM May 19, 2018Observed: 10.25 ft at 10:30AM May 19, 2018Observed: 10.25 ft at 10:45AM May 19, 2018Observed: 10.25 ft at 11:00AM May 19, 2018Observed: 10.25 ft at 11:15AM May 19, 2018Observed: 10.24 ft at 11:30AM May 19, 2018Observed: 10.24 ft at 11:45AM May 19, 2018Observed: 10.24 ft at 12:00PM May 19, 2018Observed: 10.24 ft at 12:15PM May 19, 2018Observed: 10.24 ft at 12:30PM May 19, 2018Observed: 10.23 ft at 12:45PM May 19, 2018Observed: 10.23 ft at 1:00PM May 19, 2018Observed: 10.23 ft at 1:15PM May 19, 2018Observed: 10.23 ft at 1:30PM May 19, 2018Observed: 10.23 ft at 1:45PM May 19, 2018Observed: 10.22 ft at 2:00PM May 19, 2018Observed: 10.22 ft at 2:15PM May 19, 2018Observed: 10.22 ft at 2:30PM May 19, 2018Observed: 10.22 ft at 2:45PM May 19, 2018Observed: 10.21 ft at 3:00PM May 19, 2018Observed: 10.21 ft at 3:15PM May 19, 2018Observed: 10.21 ft at 3:30PM May 19, 2018Observed: 10.21 ft at 3:45PM May 19, 2018Observed: 10.21 ft at 4:00PM May 19, 2018Observed: 10.2 ft at 4:15PM May 19, 2018Observed: 10.2 ft at 4:30PM May 19, 2018Observed: 10.2 ft at 4:45PM May 19, 2018Observed: 10.2 ft at 5:00PM May 19, 2018Observed: 10.2 ft at 5:15PM May 19, 2018Observed: 10.2 ft at 5:30PM May 19, 2018Observed: 10.19 ft at 5:45PM May 19, 2018Observed: 10.19 ft at 6:00PM May 19, 2018Observed: 10.19 ft at 6:15PM May 19, 2018Observed: 10.19 ft at 6:30PM May 19, 2018Observed: 10.18 ft at 6:45PM May 19, 2018Observed: 10.18 ft at 7:00PM May 19, 2018Observed: 10.18 ft at 7:15PM May 19, 2018Observed: 10.18 ft at 7:30PM May 19, 2018Observed: 10.18 ft at 7:45PM May 19, 2018Observed: 10.18 ft at 8:00PM May 19, 2018Observed: 10.17 ft at 8:15PM May 19, 2018Observed: 10.17 ft at 8:30PM May 19, 2018Observed: 10.17 ft at 8:45PM May 19, 2018Observed: 10.17 ft at 9:00PM May 19, 2018Observed: 10.16 ft at 9:15PM May 19, 2018Observed: 10.16 ft at 9:30PM May 19, 2018Observed: 10.16 ft at 9:45PM May 19, 2018Observed: 10.16 ft at 10:00PM May 19, 2018Observed: 10.16 ft at 10:15PM May 19, 2018Observed: 10.16 ft at 10:30PM May 19, 2018Observed: 10.16 ft at 10:45PM May 19, 2018Observed: 10.15 ft at 11:00PM May 19, 2018Observed: 10.15 ft at 11:15PM May 19, 2018Observed: 10.15 ft at 11:30PM May 19, 2018Observed: 10.15 ft at 11:45PM May 19, 2018Observed: 10.14 ft at 12:00AM May 20, 2018Observed: 10.14 ft at 12:15AM May 20, 2018Observed: 10.14 ft at 12:30AM May 20, 2018Observed: 10.14 ft at 12:45AM May 20, 2018Observed: 10.14 ft at 1:00AM May 20, 2018Observed: 10.14 ft at 1:15AM May 20, 2018Observed: 10.13 ft at 1:30AM May 20, 2018Observed: 10.13 ft at 1:45AM May 20, 2018Observed: 10.13 ft at 2:00AM May 20, 2018Observed: 10.13 ft at 2:15AM May 20, 2018Observed: 10.13 ft at 2:30AM May 20, 2018Observed: 10.13 ft at 2:45AM May 20, 2018Observed: 10.13 ft at 3:00AM May 20, 2018Observed: 10.13 ft at 3:15AM May 20, 2018Observed: 10.12 ft at 3:30AM May 20, 2018Observed: 10.12 ft at 3:45AM May 20, 2018Observed: 10.12 ft at 4:00AM May 20, 2018Observed: 10.11 ft at 4:15AM May 20, 2018Observed: 10.11 ft at 4:30AM May 20, 2018Observed: 10.11 ft at 4:45AM May 20, 2018Observed: 10.11 ft at 5:00AM May 20, 2018Observed: 10.11 ft at 5:15AM May 20, 2018Observed: 10.1 ft at 5:30AM May 20, 2018Observed: 10.1 ft at 5:45AM May 20, 2018USGS--Water Resources of the United StatesSHRI4(plotting HGIRG) Graph Created (6:47AM May 20, 2018)ObservedLatest observed value: 10.1 ft at 5:45 AM CDT 20-May-2018. Flood Stage is 13.5 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: Forecasts for the Shell Rock River (Northeast IA) at Shell Rock are issued as needed during times of high water, but are not routinely available.

Return to Area Map
Upstream Gauge - at IFC--Marble Rock 290th St Upstream Gauge Downstream Gauge Downstream Gauge - at Cedar Falls
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 18
Flood Stage: 13.5
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 21.40 ft on 09/23/2016
(2) 20.36 ft on 06/10/2008
(3) 17.70 ft on 01/01/1856
(4) 16.73 ft on 07/22/1999
(5) 16.26 ft on 03/28/1961
(6) 15.87 ft on 05/23/2004
(7) 15.49 ft on 06/30/1969
(8) 15.21 ft on 04/01/1993
(9) 15.09 ft on 04/07/1965
(10) 15.01 ft on 08/24/1979
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.40 ft on 09/23/2016
(2) 12.32 ft on 09/18/2016
(3) 12.22 ft on 09/11/2016
(4) 12.94 ft on 08/26/2016
(5) 11.90 ft on 07/19/2016
(6) 11.01 ft on 06/23/2016
(7) 12.24 ft on 06/16/2016
(8) 10.96 ft on 06/12/2016
(9) 10.78 ft on 04/02/2016
(10) 10.64 ft on 02/29/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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Gauge LocationGauge Map Marker
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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
21 The approach to the Cherry Street bridge floods.
20 Many residences flood.
18 Water nears the top of an arch beneath the Cherry Street bridge.
14 Flooding occurs in Shell Rock primarily in residential yards.
13.5 East Washington street is closed.
13 Part of South Lake Street is closed.
12.5 Seepage occurs in several basements close to the river.
12 Water affects South Prairie Street.
About This Location Collapse

Latitude: 42.711925° N, Longitude: 92.582966° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 13.5 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 29 885.34 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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