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Winnebago River (Northern IA) At Mason City (MCWI4)

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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.
Flood Stage: 10 Feet
Latest Stage: 8.91
Current Warnings/Statements/Advisories:None currently.
at Mason City
Stage (ft)Flow (cfs)Observed: 4.84 ft at 1:00PM Aug 19, 2016Observed: 4.83 ft at 1:15PM Aug 19, 2016Observed: 4.84 ft at 1:30PM Aug 19, 2016Observed: 4.84 ft at 1:45PM Aug 19, 2016Observed: 4.83 ft at 2:00PM Aug 19, 2016Observed: 4.83 ft at 2:15PM Aug 19, 2016Observed: 4.85 ft at 2:30PM Aug 19, 2016Observed: 4.86 ft at 2:45PM Aug 19, 2016Observed: 4.87 ft at 3:00PM Aug 19, 2016Observed: 4.88 ft at 3:15PM Aug 19, 2016Observed: 4.89 ft at 3:30PM Aug 19, 2016Observed: 4.9 ft at 3:45PM Aug 19, 2016Observed: 4.9 ft at 4:00PM Aug 19, 2016Observed: 4.89 ft at 4:15PM Aug 19, 2016Observed: 4.89 ft at 4:30PM Aug 19, 2016Observed: 4.89 ft at 4:45PM Aug 19, 2016Observed: 4.89 ft at 5:00PM Aug 19, 2016Observed: 4.88 ft at 5:15PM Aug 19, 2016Observed: 4.86 ft at 5:30PM Aug 19, 2016Observed: 4.87 ft at 5:45PM Aug 19, 2016Observed: 4.86 ft at 6:00PM Aug 19, 2016Observed: 4.85 ft at 6:15PM Aug 19, 2016Observed: 4.86 ft at 6:30PM Aug 19, 2016Observed: 4.86 ft at 6:45PM Aug 19, 2016Observed: 4.86 ft at 7:00PM Aug 19, 2016Observed: 4.86 ft at 7:15PM Aug 19, 2016Observed: 4.87 ft at 7:30PM Aug 19, 2016Observed: 4.86 ft at 7:45PM Aug 19, 2016Observed: 4.86 ft at 8:00PM Aug 19, 2016Observed: 4.88 ft at 8:15PM Aug 19, 2016Observed: 4.89 ft at 8:30PM Aug 19, 2016Observed: 4.9 ft at 8:45PM Aug 19, 2016Observed: 4.91 ft at 9:00PM Aug 19, 2016Observed: 4.92 ft at 9:15PM Aug 19, 2016Observed: 4.93 ft at 9:30PM Aug 19, 2016Observed: 4.93 ft at 9:45PM Aug 19, 2016Observed: 4.93 ft at 10:00PM Aug 19, 2016Observed: 4.94 ft at 10:15PM Aug 19, 2016Observed: 4.94 ft at 10:30PM Aug 19, 2016Observed: 4.95 ft at 10:45PM Aug 19, 2016Observed: 4.95 ft at 11:00PM Aug 19, 2016Observed: 4.95 ft at 11:15PM Aug 19, 2016Observed: 4.96 ft at 11:30PM Aug 19, 2016Observed: 4.96 ft at 11:45PM Aug 19, 2016Observed: 4.97 ft at 12:00AM Aug 20, 2016Observed: 4.97 ft at 12:15AM Aug 20, 2016Observed: 4.98 ft at 12:30AM Aug 20, 2016Observed: 4.98 ft at 12:45AM Aug 20, 2016Observed: 4.99 ft at 1:00AM Aug 20, 2016Observed: 5 ft at 1:15AM Aug 20, 2016Observed: 5.01 ft at 1:30AM Aug 20, 2016Observed: 5.01 ft at 1:45AM Aug 20, 2016Observed: 5.02 ft at 2:00AM Aug 20, 2016Observed: 5.03 ft at 2:15AM Aug 20, 2016Observed: 5.04 ft at 2:30AM Aug 20, 2016Observed: 5.05 ft at 2:45AM Aug 20, 2016Observed: 5.06 ft at 3:00AM Aug 20, 2016Observed: 5.05 ft at 3:15AM Aug 20, 2016Observed: 5.07 ft at 3:30AM Aug 20, 2016Observed: 5.08 ft at 3:45AM Aug 20, 2016Observed: 5.09 ft at 4:00AM Aug 20, 2016Observed: 5.1 ft at 4:15AM Aug 20, 2016Observed: 5.09 ft at 4:30AM Aug 20, 2016Observed: 5.1 ft at 4:45AM Aug 20, 2016Observed: 5.11 ft at 5:00AM Aug 20, 2016Observed: 5.13 ft at 5:15AM Aug 20, 2016Observed: 5.13 ft at 5:30AM Aug 20, 2016Observed: 5.14 ft at 5:45AM Aug 20, 2016Observed: 5.15 ft at 6:00AM Aug 20, 2016Observed: 5.16 ft at 6:15AM Aug 20, 2016Observed: 5.17 ft at 6:30AM Aug 20, 2016Observed: 5.17 ft at 6:45AM Aug 20, 2016Observed: 5.18 ft at 7:00AM Aug 20, 2016Observed: 5.2 ft at 7:15AM Aug 20, 2016Observed: 5.2 ft at 7:30AM Aug 20, 2016Observed: 5.21 ft at 7:45AM Aug 20, 2016Observed: 5.23 ft at 8:00AM Aug 20, 2016Observed: 5.23 ft at 8:15AM Aug 20, 2016Observed: 5.25 ft at 8:30AM Aug 20, 2016Observed: 5.25 ft at 8:45AM Aug 20, 2016Observed: 5.26 ft at 9:00AM Aug 20, 2016Observed: 5.27 ft at 9:15AM Aug 20, 2016Observed: 5.27 ft at 9:30AM Aug 20, 2016Observed: 5.29 ft at 9:45AM Aug 20, 2016Observed: 5.29 ft at 10:00AM Aug 20, 2016Observed: 5.29 ft at 10:15AM Aug 20, 2016Observed: 5.29 ft at 10:30AM Aug 20, 2016Observed: 5.31 ft at 10:45AM Aug 20, 2016Observed: 5.32 ft at 11:00AM Aug 20, 2016Observed: 5.34 ft at 11:15AM Aug 20, 2016Observed: 5.33 ft at 11:30AM Aug 20, 2016Observed: 5.34 ft at 11:45AM Aug 20, 2016Observed: 5.34 ft at 12:00PM Aug 20, 2016Observed: 5.34 ft at 12:15PM Aug 20, 2016Observed: 5.35 ft at 12:30PM Aug 20, 2016Observed: 5.36 ft at 12:45PM Aug 20, 2016Observed: 5.35 ft at 1:00PM Aug 20, 2016Observed: 5.36 ft at 1:15PM Aug 20, 2016Observed: 5.37 ft at 1:30PM Aug 20, 2016Observed: 5.37 ft at 1:45PM Aug 20, 2016Observed: 5.37 ft at 2:00PM Aug 20, 2016Observed: 5.38 ft at 2:15PM Aug 20, 2016Observed: 5.37 ft at 2:30PM Aug 20, 2016Observed: 5.38 ft at 2:45PM Aug 20, 2016Observed: 5.38 ft at 3:00PM Aug 20, 2016Observed: 5.4 ft at 3:15PM Aug 20, 2016Observed: 5.4 ft at 3:30PM Aug 20, 2016Observed: 5.4 ft at 3:45PM Aug 20, 2016Observed: 5.38 ft at 4:00PM Aug 20, 2016Observed: 5.41 ft at 4:15PM Aug 20, 2016Observed: 5.39 ft at 4:30PM Aug 20, 2016Observed: 5.39 ft at 4:45PM Aug 20, 2016Observed: 5.4 ft at 5:00PM Aug 20, 2016Observed: 5.41 ft at 5:15PM Aug 20, 2016Observed: 5.39 ft at 5:30PM Aug 20, 2016Observed: 5.41 ft at 5:45PM Aug 20, 2016Observed: 5.41 ft at 6:00PM Aug 20, 2016Observed: 5.41 ft at 6:15PM Aug 20, 2016Observed: 5.4 ft at 6:30PM Aug 20, 2016Observed: 5.41 ft at 6:45PM Aug 20, 2016Observed: 5.41 ft at 7:00PM Aug 20, 2016Observed: 5.41 ft at 7:15PM Aug 20, 2016Observed: 5.41 ft at 7:30PM Aug 20, 2016Observed: 5.42 ft at 7:45PM Aug 20, 2016Observed: 5.42 ft at 8:00PM Aug 20, 2016Observed: 5.42 ft at 8:15PM Aug 20, 2016Observed: 5.41 ft at 8:30PM Aug 20, 2016Observed: 5.42 ft at 8:45PM Aug 20, 2016Observed: 5.42 ft at 9:00PM Aug 20, 2016Observed: 5.41 ft at 9:15PM Aug 20, 2016Observed: 5.41 ft at 9:30PM Aug 20, 2016Observed: 5.41 ft at 9:45PM Aug 20, 2016Observed: 5.41 ft at 10:00PM Aug 20, 2016Observed: 5.41 ft at 10:15PM Aug 20, 2016Observed: 5.41 ft at 10:30PM Aug 20, 2016Observed: 5.41 ft at 10:45PM Aug 20, 2016Observed: 5.4 ft at 11:00PM Aug 20, 2016Observed: 5.41 ft at 11:15PM Aug 20, 2016Observed: 5.4 ft at 11:30PM Aug 20, 2016Observed: 5.41 ft at 11:45PM Aug 20, 2016Observed: 5.41 ft at 12:00AM Aug 21, 2016Observed: 5.4 ft at 12:15AM Aug 21, 2016Observed: 5.4 ft at 12:30AM Aug 21, 2016Observed: 5.38 ft at 12:45AM Aug 21, 2016Observed: 5.39 ft at 1:00AM Aug 21, 2016Observed: 5.4 ft at 1:15AM Aug 21, 2016Observed: 5.39 ft at 1:30AM Aug 21, 2016Observed: 5.39 ft at 1:45AM Aug 21, 2016Observed: 5.38 ft at 2:00AM Aug 21, 2016Observed: 5.38 ft at 2:15AM Aug 21, 2016Observed: 5.39 ft at 2:30AM Aug 21, 2016Observed: 5.37 ft at 2:45AM Aug 21, 2016Observed: 5.37 ft at 3:00AM Aug 21, 2016Observed: 5.37 ft at 3:15AM Aug 21, 2016Observed: 5.38 ft at 3:30AM Aug 21, 2016Observed: 5.36 ft at 3:45AM Aug 21, 2016Observed: 5.36 ft at 4:00AM Aug 21, 2016Observed: 5.35 ft at 4:15AM Aug 21, 2016Observed: 5.36 ft at 4:30AM Aug 21, 2016Observed: 5.34 ft at 4:45AM Aug 21, 2016Observed: 5.35 ft at 5:00AM Aug 21, 2016Observed: 5.34 ft at 5:15AM Aug 21, 2016Observed: 5.34 ft at 5:30AM Aug 21, 2016Observed: 5.34 ft at 5:45AM Aug 21, 2016Observed: 5.34 ft at 6:00AM Aug 21, 2016Observed: 5.34 ft at 6:15AM Aug 21, 2016Observed: 5.33 ft at 6:30AM Aug 21, 2016Observed: 5.33 ft at 6:45AM Aug 21, 2016Observed: 5.33 ft at 7:00AM Aug 21, 2016Observed: 5.32 ft at 7:15AM Aug 21, 2016Observed: 5.3 ft at 7:30AM Aug 21, 2016Observed: 5.32 ft at 7:45AM Aug 21, 2016Observed: 5.32 ft at 8:00AM Aug 21, 2016Observed: 5.31 ft at 8:15AM Aug 21, 2016Observed: 5.3 ft at 8:30AM Aug 21, 2016Observed: 5.3 ft at 8:45AM Aug 21, 2016Observed: 5.28 ft at 9:00AM Aug 21, 2016Observed: 5.28 ft at 9:15AM Aug 21, 2016Observed: 5.29 ft at 9:30AM Aug 21, 2016Observed: 5.29 ft at 9:45AM Aug 21, 2016Observed: 5.28 ft at 10:00AM Aug 21, 2016Observed: 5.27 ft at 10:15AM Aug 21, 2016Observed: 5.28 ft at 10:30AM Aug 21, 2016Observed: 5.27 ft at 10:45AM Aug 21, 2016Observed: 5.25 ft at 11:00AM Aug 21, 2016Observed: 5.27 ft at 11:15AM Aug 21, 2016Observed: 5.26 ft at 11:30AM Aug 21, 2016Observed: 5.26 ft at 11:45AM Aug 21, 2016Observed: 5.25 ft at 12:00PM Aug 21, 2016Observed: 5.25 ft at 12:15PM Aug 21, 2016Observed: 5.24 ft at 12:30PM Aug 21, 2016Observed: 5.23 ft at 12:45PM Aug 21, 2016Observed: 5.23 ft at 1:00PM Aug 21, 2016Observed: 5.23 ft at 1:15PM Aug 21, 2016Observed: 5.22 ft at 1:30PM Aug 21, 2016Observed: 5.23 ft at 1:45PM Aug 21, 2016Observed: 5.22 ft at 2:00PM Aug 21, 2016Observed: 5.22 ft at 2:15PM Aug 21, 2016Observed: 5.22 ft at 2:30PM Aug 21, 2016Observed: 5.18 ft at 2:45PM Aug 21, 2016Observed: 5.2 ft at 3:00PM Aug 21, 2016Observed: 5.19 ft at 3:15PM Aug 21, 2016Observed: 5.18 ft at 3:30PM Aug 21, 2016Observed: 5.2 ft at 3:45PM Aug 21, 2016Observed: 5.19 ft at 4:00PM Aug 21, 2016Observed: 5.19 ft at 4:15PM Aug 21, 2016Observed: 5.18 ft at 4:30PM Aug 21, 2016Observed: 5.18 ft at 4:45PM Aug 21, 2016Observed: 5.16 ft at 5:00PM Aug 21, 2016Observed: 5.16 ft at 5:15PM Aug 21, 2016Observed: 5.16 ft at 5:30PM Aug 21, 2016Observed: 5.15 ft at 5:45PM Aug 21, 2016Observed: 5.15 ft at 6:00PM Aug 21, 2016Observed: 5.15 ft at 6:15PM Aug 21, 2016Observed: 5.14 ft at 6:30PM Aug 21, 2016Observed: 5.13 ft at 6:45PM Aug 21, 2016Observed: 5.14 ft at 7:00PM Aug 21, 2016Observed: 5.13 ft at 7:15PM Aug 21, 2016Observed: 5.13 ft at 7:30PM Aug 21, 2016Observed: 5.12 ft at 7:45PM Aug 21, 2016Observed: 5.11 ft at 8:00PM Aug 21, 2016Observed: 5.12 ft at 8:15PM Aug 21, 2016Observed: 5.11 ft at 8:30PM Aug 21, 2016Observed: 5.1 ft at 8:45PM Aug 21, 2016Observed: 5.11 ft at 9:00PM Aug 21, 2016Observed: 5.09 ft at 9:15PM Aug 21, 2016Observed: 5.09 ft at 9:30PM Aug 21, 2016Observed: 5.09 ft at 9:45PM Aug 21, 2016Observed: 5.08 ft at 10:00PM Aug 21, 2016Observed: 5.08 ft at 10:15PM Aug 21, 2016Observed: 5.08 ft at 10:30PM Aug 21, 2016Observed: 5.08 ft at 10:45PM Aug 21, 2016Observed: 5.08 ft at 11:00PM Aug 21, 2016Observed: 5.06 ft at 11:15PM Aug 21, 2016Observed: 5.06 ft at 11:30PM Aug 21, 2016Observed: 5.06 ft at 11:45PM Aug 21, 2016Observed: 5.06 ft at 12:00AM Aug 22, 2016Observed: 5.05 ft at 12:15AM Aug 22, 2016Observed: 5.05 ft at 12:30AM Aug 22, 2016Observed: 5.04 ft at 12:45AM Aug 22, 2016Observed: 5.04 ft at 1:00AM Aug 22, 2016Observed: 5.03 ft at 1:15AM Aug 22, 2016Observed: 5.02 ft at 1:30AM Aug 22, 2016Observed: 5.03 ft at 1:45AM Aug 22, 2016Observed: 5.02 ft at 2:00AM Aug 22, 2016Observed: 5.02 ft at 2:15AM Aug 22, 2016Observed: 5.02 ft at 2:30AM Aug 22, 2016Observed: 5.01 ft at 2:45AM Aug 22, 2016Observed: 5.01 ft at 3:00AM Aug 22, 2016Observed: 5.01 ft at 3:15AM Aug 22, 2016Observed: 5 ft at 3:30AM Aug 22, 2016Observed: 5 ft at 3:45AM Aug 22, 2016Observed: 4.99 ft at 4:00AM Aug 22, 2016Observed: 4.99 ft at 4:15AM Aug 22, 2016Observed: 4.99 ft at 4:30AM Aug 22, 2016Observed: 4.97 ft at 4:45AM Aug 22, 2016Observed: 4.97 ft at 5:00AM Aug 22, 2016Observed: 4.97 ft at 5:15AM Aug 22, 2016Observed: 4.97 ft at 5:30AM Aug 22, 2016Observed: 4.96 ft at 5:45AM Aug 22, 2016Observed: 4.96 ft at 6:00AM Aug 22, 2016Observed: 4.97 ft at 6:15AM Aug 22, 2016Observed: 4.96 ft at 6:30AM Aug 22, 2016Observed: 4.96 ft at 6:45AM Aug 22, 2016Observed: 4.95 ft at 7:00AM Aug 22, 2016Observed: 4.95 ft at 7:15AM Aug 22, 2016Observed: 4.95 ft at 7:30AM Aug 22, 2016Observed: 4.95 ft at 7:45AM Aug 22, 2016Observed: 4.94 ft at 8:00AM Aug 22, 2016Observed: 4.94 ft at 8:15AM Aug 22, 2016Observed: 4.94 ft at 8:30AM Aug 22, 2016Observed: 4.94 ft at 8:45AM Aug 22, 2016Observed: 4.94 ft at 9:00AM Aug 22, 2016Observed: 4.93 ft at 9:15AM Aug 22, 2016Observed: 4.93 ft at 9:30AM Aug 22, 2016Observed: 4.93 ft at 9:45AM Aug 22, 2016Observed: 4.93 ft at 10:00AM Aug 22, 2016Observed: 4.92 ft at 10:15AM Aug 22, 2016Observed: 4.92 ft at 10:30AM Aug 22, 2016Observed: 4.92 ft at 10:45AM Aug 22, 2016Observed: 4.91 ft at 11:00AM Aug 22, 2016Observed: 4.9 ft at 11:15AM Aug 22, 2016Observed: 4.9 ft at 11:30AM Aug 22, 2016Observed: 4.91 ft at 11:45AM Aug 22, 2016Observed: 4.91 ft at 12:00PM Aug 22, 2016Observed: 4.9 ft at 12:15PM Aug 22, 2016Observed: 4.9 ft at 12:30PM Aug 22, 2016Observed: 4.9 ft at 12:45PM Aug 22, 2016Observed: 4.9 ft at 1:00PM Aug 22, 2016Observed: 4.9 ft at 1:15PM Aug 22, 2016Observed: 4.89 ft at 1:30PM Aug 22, 2016Observed: 4.89 ft at 1:45PM Aug 22, 2016Observed: 4.88 ft at 2:00PM Aug 22, 2016Observed: 4.89 ft at 2:15PM Aug 22, 2016Observed: 4.71 ft at 2:30PM Aug 22, 2016Observed: 4.88 ft at 2:45PM Aug 22, 2016Observed: 4.88 ft at 3:00PM Aug 22, 2016Observed: 4.87 ft at 3:15PM Aug 22, 2016Observed: 4.87 ft at 3:30PM Aug 22, 2016Observed: 4.87 ft at 3:45PM Aug 22, 2016Observed: 4.86 ft at 4:00PM Aug 22, 2016Observed: 4.86 ft at 4:15PM Aug 22, 2016Observed: 4.86 ft at 4:30PM Aug 22, 2016Observed: 4.85 ft at 4:45PM Aug 22, 2016Observed: 4.85 ft at 5:00PM Aug 22, 2016Observed: 4.85 ft at 5:15PM Aug 22, 2016Observed: 4.85 ft at 5:30PM Aug 22, 2016Observed: 4.84 ft at 5:45PM Aug 22, 2016Observed: 4.84 ft at 6:00PM Aug 22, 2016Observed: 4.84 ft at 6:15PM Aug 22, 2016Observed: 4.84 ft at 6:30PM Aug 22, 2016Observed: 4.83 ft at 6:45PM Aug 22, 2016Observed: 4.83 ft at 7:00PM Aug 22, 2016Observed: 4.82 ft at 7:15PM Aug 22, 2016Observed: 4.82 ft at 7:30PM Aug 22, 2016Observed: 4.82 ft at 7:45PM Aug 22, 2016Observed: 4.81 ft at 8:00PM Aug 22, 2016Observed: 4.81 ft at 8:15PM Aug 22, 2016Observed: 4.81 ft at 8:30PM Aug 22, 2016Observed: 4.81 ft at 8:45PM Aug 22, 2016Observed: 4.8 ft at 9:00PM Aug 22, 2016Observed: 4.8 ft at 9:15PM Aug 22, 2016Observed: 4.79 ft at 9:30PM Aug 22, 2016Observed: 4.8 ft at 9:45PM Aug 22, 2016Observed: 4.79 ft at 10:00PM Aug 22, 2016Observed: 4.79 ft at 10:15PM Aug 22, 2016Observed: 4.78 ft at 10:30PM Aug 22, 2016Observed: 4.78 ft at 10:45PM Aug 22, 2016Observed: 4.77 ft at 11:00PM Aug 22, 2016Observed: 4.78 ft at 11:15PM Aug 22, 2016Observed: 4.77 ft at 11:30PM Aug 22, 2016Observed: 4.77 ft at 11:45PM Aug 22, 2016Observed: 4.77 ft at 12:00AM Aug 23, 2016Observed: 4.76 ft at 12:15AM Aug 23, 2016Observed: 4.76 ft at 12:30AM Aug 23, 2016Observed: 4.75 ft at 12:45AM Aug 23, 2016Observed: 4.75 ft at 1:00AM Aug 23, 2016Observed: 4.74 ft at 1:15AM Aug 23, 2016Observed: 4.75 ft at 1:30AM Aug 23, 2016Observed: 4.75 ft at 1:45AM Aug 23, 2016Observed: 4.74 ft at 2:00AM Aug 23, 2016Observed: 4.73 ft at 2:15AM Aug 23, 2016Observed: 4.74 ft at 2:30AM Aug 23, 2016Observed: 4.73 ft at 2:45AM Aug 23, 2016Observed: 4.73 ft at 3:00AM Aug 23, 2016Observed: 4.73 ft at 3:15AM Aug 23, 2016Observed: 4.72 ft at 3:30AM Aug 23, 2016Observed: 4.72 ft at 3:45AM Aug 23, 2016Observed: 4.72 ft at 4:00AM Aug 23, 2016Observed: 4.72 ft at 4:15AM Aug 23, 2016Observed: 4.72 ft at 4:30AM Aug 23, 2016Observed: 4.71 ft at 4:45AM Aug 23, 2016Observed: 4.71 ft at 5:00AM Aug 23, 2016Observed: 4.71 ft at 5:15AM Aug 23, 2016Observed: 4.71 ft at 5:30AM Aug 23, 2016Observed: 4.7 ft at 5:45AM Aug 23, 2016Observed: 4.7 ft at 6:00AM Aug 23, 2016Observed: 4.69 ft at 6:15AM Aug 23, 2016Observed: 4.69 ft at 6:30AM Aug 23, 2016Observed: 4.69 ft at 6:45AM Aug 23, 2016Observed: 4.68 ft at 7:00AM Aug 23, 2016Observed: 4.69 ft at 7:15AM Aug 23, 2016Observed: 4.68 ft at 7:30AM Aug 23, 2016Observed: 4.68 ft at 7:45AM Aug 23, 2016Observed: 4.67 ft at 8:00AM Aug 23, 2016Observed: 4.68 ft at 8:15AM Aug 23, 2016Observed: 4.67 ft at 8:30AM Aug 23, 2016Observed: 4.67 ft at 8:45AM Aug 23, 2016Observed: 4.67 ft at 9:00AM Aug 23, 2016Observed: 4.66 ft at 9:15AM Aug 23, 2016Observed: 4.67 ft at 9:30AM Aug 23, 2016Observed: 4.66 ft at 9:45AM Aug 23, 2016Observed: 4.66 ft at 10:00AM Aug 23, 2016Observed: 4.66 ft at 10:15AM Aug 23, 2016Observed: 4.65 ft at 10:30AM Aug 23, 2016Observed: 4.65 ft at 10:45AM Aug 23, 2016Observed: 4.65 ft at 11:00AM Aug 23, 2016Observed: 4.65 ft at 11:15AM Aug 23, 2016Observed: 4.64 ft at 11:30AM Aug 23, 2016Observed: 4.64 ft at 11:45AM Aug 23, 2016Observed: 4.64 ft at 12:00PM Aug 23, 2016Observed: 4.64 ft at 12:15PM Aug 23, 2016Observed: 4.64 ft at 12:30PM Aug 23, 2016Observed: 4.63 ft at 12:45PM Aug 23, 2016Observed: 4.63 ft at 1:00PM Aug 23, 2016Observed: 4.63 ft at 1:15PM Aug 23, 2016Observed: 4.63 ft at 1:30PM Aug 23, 2016Observed: 4.62 ft at 1:45PM Aug 23, 2016Observed: 4.62 ft at 2:00PM Aug 23, 2016Observed: 4.62 ft at 2:15PM Aug 23, 2016Observed: 4.62 ft at 2:30PM Aug 23, 2016Observed: 4.62 ft at 2:45PM Aug 23, 2016Observed: 4.62 ft at 3:00PM Aug 23, 2016Observed: 4.61 ft at 3:15PM Aug 23, 2016Observed: 4.61 ft at 3:30PM Aug 23, 2016Observed: 4.6 ft at 3:45PM Aug 23, 2016Observed: 4.6 ft at 4:00PM Aug 23, 2016Observed: 4.61 ft at 4:15PM Aug 23, 2016Observed: 4.6 ft at 4:30PM Aug 23, 2016Observed: 4.6 ft at 4:45PM Aug 23, 2016Observed: 4.6 ft at 5:00PM Aug 23, 2016Observed: 4.6 ft at 5:15PM Aug 23, 2016Observed: 4.6 ft at 5:30PM Aug 23, 2016Observed: 4.6 ft at 5:45PM Aug 23, 2016Observed: 4.71 ft at 6:00PM Aug 23, 2016Observed: 4.79 ft at 6:15PM Aug 23, 2016Observed: 4.79 ft at 6:30PM Aug 23, 2016Observed: 4.78 ft at 6:45PM Aug 23, 2016Observed: 4.81 ft at 7:00PM Aug 23, 2016Observed: 4.87 ft at 7:15PM Aug 23, 2016Observed: 4.9 ft at 7:30PM Aug 23, 2016Observed: 4.94 ft at 7:45PM Aug 23, 2016Observed: 4.98 ft at 8:00PM Aug 23, 2016Observed: 5.01 ft at 8:15PM Aug 23, 2016Observed: 5.03 ft at 8:30PM Aug 23, 2016Observed: 5.05 ft at 8:45PM Aug 23, 2016Observed: 5.07 ft at 9:00PM Aug 23, 2016Observed: 5.06 ft at 9:15PM Aug 23, 2016Observed: 5.08 ft at 9:30PM Aug 23, 2016Observed: 5.12 ft at 9:45PM Aug 23, 2016Observed: 5.12 ft at 10:00PM Aug 23, 2016Observed: 5.12 ft at 10:15PM Aug 23, 2016Observed: 5.11 ft at 10:30PM Aug 23, 2016Observed: 5.15 ft at 10:45PM Aug 23, 2016Observed: 5.17 ft at 11:00PM Aug 23, 2016Observed: 5.18 ft at 11:15PM Aug 23, 2016Observed: 5.19 ft at 11:30PM Aug 23, 2016Observed: 5.21 ft at 11:45PM Aug 23, 2016Observed: 5.23 ft at 12:00AM Aug 24, 2016Observed: 5.27 ft at 12:15AM Aug 24, 2016Observed: 5.29 ft at 12:30AM Aug 24, 2016Observed: 5.31 ft at 12:45AM Aug 24, 2016Observed: 5.36 ft at 1:00AM Aug 24, 2016Observed: 5.39 ft at 1:15AM Aug 24, 2016Observed: 5.44 ft at 1:30AM Aug 24, 2016Observed: 5.49 ft at 1:45AM Aug 24, 2016Observed: 5.55 ft at 2:00AM Aug 24, 2016Observed: 5.59 ft at 2:15AM Aug 24, 2016Observed: 5.67 ft at 2:30AM Aug 24, 2016Observed: 5.74 ft at 2:45AM Aug 24, 2016Observed: 5.81 ft at 3:00AM Aug 24, 2016Observed: 5.9 ft at 3:15AM Aug 24, 2016Observed: 5.99 ft at 3:30AM Aug 24, 2016Observed: 6.12 ft at 3:45AM Aug 24, 2016Observed: 6.24 ft at 4:00AM Aug 24, 2016Observed: 6.36 ft at 4:15AM Aug 24, 2016Observed: 6.47 ft at 4:30AM Aug 24, 2016Observed: 6.6 ft at 4:45AM Aug 24, 2016Observed: 6.69 ft at 5:00AM Aug 24, 2016Observed: 6.8 ft at 5:15AM Aug 24, 2016Observed: 6.9 ft at 5:30AM Aug 24, 2016Observed: 6.96 ft at 5:45AM Aug 24, 2016Observed: 7.07 ft at 6:00AM Aug 24, 2016Observed: 7.14 ft at 6:15AM Aug 24, 2016Observed: 7.22 ft at 6:30AM Aug 24, 2016Observed: 7.3 ft at 6:45AM Aug 24, 2016Observed: 7.38 ft at 7:00AM Aug 24, 2016Observed: 7.46 ft at 7:15AM Aug 24, 2016Observed: 7.51 ft at 7:30AM Aug 24, 2016Observed: 7.58 ft at 7:45AM Aug 24, 2016Observed: 7.65 ft at 8:00AM Aug 24, 2016Observed: 7.66 ft at 8:15AM Aug 24, 2016Observed: 7.75 ft at 8:30AM Aug 24, 2016Observed: 7.79 ft at 8:45AM Aug 24, 2016Observed: 7.8 ft at 9:00AM Aug 24, 2016Observed: 7.9 ft at 9:15AM Aug 24, 2016Observed: 7.96 ft at 9:30AM Aug 24, 2016Observed: 8.03 ft at 9:45AM Aug 24, 2016Observed: 8.09 ft at 10:00AM Aug 24, 2016Observed: 8.15 ft at 10:15AM Aug 24, 2016Observed: 8.25 ft at 10:30AM Aug 24, 2016Observed: 8.34 ft at 10:45AM Aug 24, 2016Observed: 8.46 ft at 11:00AM Aug 24, 2016Observed: 8.54 ft at 11:15AM Aug 24, 2016Highest Observation: 8.62 ft at 11:30AM Aug 24, 2016Forecast: 9.4 ft 1:00PM Aug 24, 2016Highest Forecast: 9.7 ft 7:00PM Aug 24, 2016Forecast: 9.5 ft 1:00AM Aug 25, 2016Forecast: 9 ft 7:00AM Aug 25, 2016Forecast: 8.5 ft 1:00PM Aug 25, 2016Forecast: 8 ft 7:00PM Aug 25, 2016Forecast: 7.6 ft 1:00AM Aug 26, 2016Forecast: 7.2 ft 7:00AM Aug 26, 2016Forecast: 6.8 ft 1:00PM Aug 26, 2016Forecast: 6.4 ft 7:00PM Aug 26, 2016Forecast: 6.1 ft 1:00AM Aug 27, 2016Forecast: 6 ft 7:00AM Aug 27, 2016Forecast: 5.8 ft 1:00PM Aug 27, 2016Forecast: 5.7 ft 7:00PM Aug 27, 2016Forecast: 5.7 ft 1:00AM Aug 28, 2016Forecast: 5.6 ft 7:00AM Aug 28, 2016Forecast: 5.6 ft 1:00PM Aug 28, 2016Forecast: 5.5 ft 7:00PM Aug 28, 2016Forecast: 5.5 ft 1:00AM Aug 29, 2016Forecast: 5.5 ft 7:00AM Aug 29, 2016Forecast: 5.5 ft 1:00PM Aug 29, 2016Forecast: 5.4 ft 7:00PM Aug 29, 2016Forecast: 5.4 ft 1:00AM Aug 30, 2016Forecast: 5.4 ft 7:00AM Aug 30, 2016Forecast: 5.3 ft 1:00PM Aug 30, 2016Forecast: 5.3 ft 7:00PM Aug 30, 2016Forecast: 5.3 ft 1:00AM Aug 31, 2016Forecast: 5.3 ft 7:00AM Aug 31, 2016USGS--Water Resources of the United StatesMCWI4(plotting HGIRG) Graph Created (12:47PM Aug 24, 2016)ObservedForecast (issued 8:22AM Aug 24)Latest observed value: 8.62 ft at 11:30 AM CDT 24-Aug-2016. Flood Stage is 10 ft
Flood Impacts

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20.5
Water overtops the floodwall at the water treatment plant...located at 13th St NE.
17.4
Water reaches bottom of railroad bridge east of Kentucky Avenue bridge.
15
This is the approximate top of levee protection. Levees run from the 12th Street Northeast bridge to 9th Street along the east bank and also from 8th Street to 6th and Hampshire Streets.
14
Water may flow over the city dikes.
12
Widespread flooding occurs along the river. Some backwater effects are possible along Willow Creek between downtown Mason City and the confluence with the Winnebago river.
11
Sandbagging occurs on the dike from 12th Street Northeast to Carolina Street.
10
There is widespread flooding of city parks and water reaches the underside of the 12th Street Northeast bridge at the piers.
8
East and west city parks are affected in the 12th Street Northeast area.
7
Low lying areas along the river are affected.
Flood Categories (in feet)
Major Flood Stage: 15.5
Moderate Flood Stage: 14.5
Flood Stage: 10
Action Stage: 6
Low Stage (in feet): 0

Historic Crests
(1) 18.74 ft on 06/08/2008
(2) 14.80 ft on 03/27/1961
(3) 14.67 ft on 05/22/2004
(4) 14.27 ft on 04/11/1965
(5) 13.70 ft on 04/06/1965
(6) 13.06 ft on 08/31/1962
(7) 12.59 ft on 04/01/1993
(8) 12.44 ft on 04/07/1951
(9) 12.30 ft on 05/23/2004
(10) 12.25 ft on 07/08/1969
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.10 ft on 06/22/2015
(2) 7.54 ft on 06/30/2014
(3) 9.36 ft on 06/20/2014
(4) 6.63 ft on 04/30/2014
(5) 8.61 ft on 07/14/2013
(6) 8.07 ft on 06/25/2013
(7) 9.11 ft on 06/13/2013
(8) 7.18 ft on 06/09/2013
(9) 6.48 ft on 06/05/2013
(10) 8.90 ft on 05/28/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

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
Des Moines Weather Forecast Office
9607 NW Beaver Dr.
Des Moines, IA 50131
(515) 270-2614
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Page last modified: 16-Nov-2015 2:32 PM
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