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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: 3.41
Current Warnings/Statements/Advisories:None currently.
at Mason City
Stage (ft)Flow (cfs)Observed: 3.3 ft at 12:30PM Aug 11, 2017Observed: 3.29 ft at 2:45PM Aug 11, 2017Observed: 3.58 ft at 3:00PM Aug 11, 2017Observed: 3.73 ft at 3:15PM Aug 11, 2017Observed: 4.08 ft at 3:30PM Aug 11, 2017Highest Observation: 4.22 ft at 3:45PM Aug 11, 2017Observed: 3.87 ft at 4:00PM Aug 11, 2017Observed: 3.78 ft at 4:15PM Aug 11, 2017Observed: 3.82 ft at 4:30PM Aug 11, 2017Observed: 3.8 ft at 4:45PM Aug 11, 2017Observed: 3.81 ft at 5:00PM Aug 11, 2017Observed: 3.8 ft at 5:15PM Aug 11, 2017Observed: 3.8 ft at 5:30PM Aug 11, 2017Observed: 3.84 ft at 5:45PM Aug 11, 2017Observed: 3.81 ft at 6:00PM Aug 11, 2017Observed: 3.73 ft at 6:15PM Aug 11, 2017Observed: 3.79 ft at 6:30PM Aug 11, 2017Observed: 3.65 ft at 6:45PM Aug 11, 2017Observed: 3.76 ft at 7:00PM Aug 11, 2017Observed: 3.69 ft at 7:15PM Aug 11, 2017Observed: 3.66 ft at 7:30PM Aug 11, 2017Observed: 3.67 ft at 7:45PM Aug 11, 2017Observed: 3.67 ft at 8:00PM Aug 11, 2017Observed: 3.68 ft at 8:15PM Aug 11, 2017Observed: 3.72 ft at 8:30PM Aug 11, 2017Observed: 3.72 ft at 8:45PM Aug 11, 2017Observed: 3.72 ft at 9:00PM Aug 11, 2017Observed: 3.71 ft at 9:15PM Aug 11, 2017Observed: 3.72 ft at 9:30PM Aug 11, 2017Observed: 3.73 ft at 9:45PM Aug 11, 2017Observed: 3.67 ft at 10:00PM Aug 11, 2017Observed: 3.76 ft at 10:15PM Aug 11, 2017Observed: 3.74 ft at 10:30PM Aug 11, 2017Observed: 3.69 ft at 10:45PM Aug 11, 2017Observed: 3.7 ft at 11:00PM Aug 11, 2017Observed: 3.71 ft at 11:15PM Aug 11, 2017Observed: 3.73 ft at 11:30PM Aug 11, 2017Observed: 3.74 ft at 11:45PM Aug 11, 2017Observed: 3.73 ft at 12:00AM Aug 12, 2017Observed: 3.75 ft at 12:15AM Aug 12, 2017Observed: 3.74 ft at 12:30AM Aug 12, 2017Observed: 3.76 ft at 12:45AM Aug 12, 2017Observed: 3.71 ft at 1:00AM Aug 12, 2017Observed: 3.7 ft at 1:15AM Aug 12, 2017Observed: 3.71 ft at 1:30AM Aug 12, 2017Observed: 3.66 ft at 1:45AM Aug 12, 2017Observed: 3.72 ft at 2:00AM Aug 12, 2017Observed: 3.71 ft at 2:15AM Aug 12, 2017Observed: 3.71 ft at 2:30AM Aug 12, 2017Observed: 3.69 ft at 2:45AM Aug 12, 2017Observed: 3.71 ft at 3:00AM Aug 12, 2017Observed: 3.74 ft at 3:15AM Aug 12, 2017Observed: 3.71 ft at 3:30AM Aug 12, 2017Observed: 3.72 ft at 3:45AM Aug 12, 2017Observed: 3.71 ft at 4:00AM Aug 12, 2017Observed: 3.73 ft at 4:15AM Aug 12, 2017Observed: 3.69 ft at 4:30AM Aug 12, 2017Observed: 3.72 ft at 4:45AM Aug 12, 2017Observed: 3.7 ft at 5:00AM Aug 12, 2017Observed: 3.71 ft at 5:15AM Aug 12, 2017Observed: 3.69 ft at 5:30AM Aug 12, 2017Observed: 3.69 ft at 5:45AM Aug 12, 2017Observed: 3.69 ft at 6:00AM Aug 12, 2017Observed: 3.69 ft at 6:15AM Aug 12, 2017Observed: 3.72 ft at 6:30AM Aug 12, 2017Observed: 3.65 ft at 6:45AM Aug 12, 2017Observed: 3.67 ft at 7:00AM Aug 12, 2017Observed: 3.67 ft at 7:15AM Aug 12, 2017Observed: 3.71 ft at 7:30AM Aug 12, 2017Observed: 3.7 ft at 7:45AM Aug 12, 2017Observed: 3.71 ft at 8:00AM Aug 12, 2017Observed: 3.66 ft at 8:15AM Aug 12, 2017Observed: 3.7 ft at 8:30AM Aug 12, 2017Observed: 3.68 ft at 8:45AM Aug 12, 2017Observed: 3.7 ft at 9:00AM Aug 12, 2017Observed: 3.7 ft at 9:15AM Aug 12, 2017Observed: 3.66 ft at 9:30AM Aug 12, 2017Observed: 3.66 ft at 9:45AM Aug 12, 2017Observed: 3.68 ft at 10:00AM Aug 12, 2017Observed: 3.68 ft at 10:15AM Aug 12, 2017Observed: 3.69 ft at 10:30AM Aug 12, 2017Observed: 3.66 ft at 10:45AM Aug 12, 2017Observed: 3.68 ft at 11:00AM Aug 12, 2017Observed: 3.69 ft at 11:15AM Aug 12, 2017Observed: 3.7 ft at 11:30AM Aug 12, 2017Observed: 3.66 ft at 11:45AM Aug 12, 2017Observed: 3.49 ft at 12:00PM Aug 12, 2017Observed: 3.49 ft at 12:15PM Aug 12, 2017Observed: 3.43 ft at 12:30PM Aug 12, 2017Observed: 3.47 ft at 12:45PM Aug 12, 2017Observed: 3.49 ft at 1:00PM Aug 12, 2017Observed: 3.5 ft at 1:15PM Aug 12, 2017Observed: 3.44 ft at 1:30PM Aug 12, 2017Observed: 3.45 ft at 1:45PM Aug 12, 2017Observed: 3.46 ft at 2:00PM Aug 12, 2017Observed: 3.47 ft at 2:15PM Aug 12, 2017Observed: 3.47 ft at 2:30PM Aug 12, 2017Observed: 3.43 ft at 2:45PM Aug 12, 2017Observed: 3.48 ft at 3:00PM Aug 12, 2017Observed: 3.46 ft at 3:15PM Aug 12, 2017Observed: 3.45 ft at 3:30PM Aug 12, 2017Observed: 3.46 ft at 3:45PM Aug 12, 2017Observed: 3.46 ft at 4:00PM Aug 12, 2017Observed: 3.42 ft at 4:15PM Aug 12, 2017Observed: 3.47 ft at 4:30PM Aug 12, 2017Observed: 3.42 ft at 4:45PM Aug 12, 2017Observed: 3.45 ft at 5:00PM Aug 12, 2017Observed: 3.46 ft at 5:15PM Aug 12, 2017Observed: 3.43 ft at 5:30PM Aug 12, 2017Observed: 3.45 ft at 5:45PM Aug 12, 2017Observed: 3.47 ft at 6:00PM Aug 12, 2017Observed: 3.41 ft at 6:15PM Aug 12, 2017Observed: 3.45 ft at 6:30PM Aug 12, 2017Observed: 3.45 ft at 6:45PM Aug 12, 2017Observed: 3.44 ft at 7:00PM Aug 12, 2017Observed: 3.44 ft at 7:15PM Aug 12, 2017Observed: 3.42 ft at 7:30PM Aug 12, 2017Observed: 3.4 ft at 7:45PM Aug 12, 2017Observed: 3.44 ft at 8:00PM Aug 12, 2017Observed: 3.42 ft at 8:15PM Aug 12, 2017Observed: 3.43 ft at 8:30PM Aug 12, 2017Observed: 3.42 ft at 8:45PM Aug 12, 2017Observed: 3.44 ft at 9:00PM Aug 12, 2017Observed: 3.42 ft at 9:15PM Aug 12, 2017Observed: 3.43 ft at 9:30PM Aug 12, 2017Observed: 3.41 ft at 9:45PM Aug 12, 2017Observed: 3.41 ft at 10:00PM Aug 12, 2017Observed: 3.48 ft at 10:15PM Aug 12, 2017Observed: 3.46 ft at 10:30PM Aug 12, 2017Observed: 3.43 ft at 10:45PM Aug 12, 2017Observed: 3.44 ft at 11:00PM Aug 12, 2017Observed: 3.43 ft at 11:15PM Aug 12, 2017Observed: 3.47 ft at 11:30PM Aug 12, 2017Observed: 3.45 ft at 11:45PM Aug 12, 2017Observed: 3.43 ft at 12:00AM Aug 13, 2017Observed: 3.48 ft at 12:15AM Aug 13, 2017Observed: 3.43 ft at 12:30AM Aug 13, 2017Observed: 3.41 ft at 12:45AM Aug 13, 2017Observed: 3.43 ft at 1:00AM Aug 13, 2017Observed: 3.42 ft at 1:15AM Aug 13, 2017Observed: 3.45 ft at 1:30AM Aug 13, 2017Observed: 3.44 ft at 1:45AM Aug 13, 2017Observed: 3.46 ft at 2:00AM Aug 13, 2017Observed: 3.46 ft at 2:15AM Aug 13, 2017Observed: 3.47 ft at 2:30AM Aug 13, 2017Observed: 3.46 ft at 2:45AM Aug 13, 2017Observed: 3.46 ft at 3:00AM Aug 13, 2017Observed: 3.44 ft at 3:15AM Aug 13, 2017Observed: 3.45 ft at 3:30AM Aug 13, 2017Observed: 3.43 ft at 3:45AM Aug 13, 2017Observed: 3.42 ft at 4:00AM Aug 13, 2017Observed: 3.47 ft at 4:15AM Aug 13, 2017Observed: 3.4 ft at 4:30AM Aug 13, 2017Observed: 3.45 ft at 4:45AM Aug 13, 2017Observed: 3.41 ft at 5:00AM Aug 13, 2017Observed: 3.4 ft at 5:15AM Aug 13, 2017Observed: 3.4 ft at 5:30AM Aug 13, 2017Observed: 3.4 ft at 5:45AM Aug 13, 2017Observed: 3.42 ft at 6:00AM Aug 13, 2017Observed: 3.45 ft at 6:15AM Aug 13, 2017Observed: 3.43 ft at 6:30AM Aug 13, 2017Observed: 3.43 ft at 6:45AM Aug 13, 2017Observed: 3.41 ft at 7:00AM Aug 13, 2017Observed: 3.44 ft at 7:15AM Aug 13, 2017Observed: 3.41 ft at 7:30AM Aug 13, 2017Observed: 3.44 ft at 7:45AM Aug 13, 2017Observed: 3.41 ft at 8:00AM Aug 13, 2017Observed: 3.41 ft at 8:15AM Aug 13, 2017Observed: 3.45 ft at 8:30AM Aug 13, 2017Observed: 3.43 ft at 8:45AM Aug 13, 2017Observed: 3.41 ft at 9:00AM Aug 13, 2017Observed: 3.42 ft at 9:15AM Aug 13, 2017Observed: 3.42 ft at 9:30AM Aug 13, 2017Observed: 3.47 ft at 9:45AM Aug 13, 2017Observed: 3.39 ft at 10:00AM Aug 13, 2017Observed: 3.43 ft at 10:15AM Aug 13, 2017Observed: 3.46 ft at 10:30AM Aug 13, 2017Observed: 3.41 ft at 10:45AM Aug 13, 2017Observed: 3.42 ft at 11:00AM Aug 13, 2017Observed: 3.43 ft at 11:15AM Aug 13, 2017Observed: 3.43 ft at 11:30AM Aug 13, 2017Observed: 3.4 ft at 11:45AM Aug 13, 2017Observed: 3.4 ft at 12:00PM Aug 13, 2017Observed: 3.4 ft at 12:15PM Aug 13, 2017Observed: 3.43 ft at 12:30PM Aug 13, 2017Observed: 3.45 ft at 12:45PM Aug 13, 2017Observed: 3.47 ft at 1:00PM Aug 13, 2017Observed: 3.42 ft at 1:15PM Aug 13, 2017Observed: 3.43 ft at 1:30PM Aug 13, 2017Observed: 3.39 ft at 1:45PM Aug 13, 2017Observed: 3.42 ft at 2:00PM Aug 13, 2017Observed: 3.43 ft at 2:15PM Aug 13, 2017Observed: 3.42 ft at 2:30PM Aug 13, 2017Observed: 3.42 ft at 2:45PM Aug 13, 2017Observed: 3.42 ft at 3:00PM Aug 13, 2017Observed: 3.45 ft at 3:15PM Aug 13, 2017Observed: 3.42 ft at 3:30PM Aug 13, 2017Observed: 3.47 ft at 3:45PM Aug 13, 2017Observed: 3.42 ft at 4:00PM Aug 13, 2017Observed: 3.47 ft at 4:15PM Aug 13, 2017Observed: 3.43 ft at 4:30PM Aug 13, 2017Observed: 3.44 ft at 4:45PM Aug 13, 2017Observed: 3.42 ft at 5:00PM Aug 13, 2017Observed: 3.4 ft at 5:15PM Aug 13, 2017Observed: 3.42 ft at 5:30PM Aug 13, 2017Observed: 3.45 ft at 5:45PM Aug 13, 2017Observed: 3.41 ft at 6:00PM Aug 13, 2017Observed: 3.41 ft at 6:15PM Aug 13, 2017Observed: 3.42 ft at 6:30PM Aug 13, 2017Observed: 3.43 ft at 6:45PM Aug 13, 2017Observed: 3.42 ft at 7:00PM Aug 13, 2017Observed: 3.42 ft at 7:15PM Aug 13, 2017Observed: 3.34 ft at 7:30PM Aug 13, 2017Observed: 3.39 ft at 7:45PM Aug 13, 2017Observed: 3.4 ft at 8:00PM Aug 13, 2017Observed: 3.41 ft at 8:15PM Aug 13, 2017Observed: 3.4 ft at 8:30PM Aug 13, 2017Observed: 3.44 ft at 8:45PM Aug 13, 2017Observed: 3.44 ft at 9:00PM Aug 13, 2017Observed: 3.39 ft at 9:15PM Aug 13, 2017Observed: 3.41 ft at 9:30PM Aug 13, 2017Observed: 3.41 ft at 9:45PM Aug 13, 2017Observed: 3.41 ft at 10:00PM Aug 13, 2017Observed: 3.42 ft at 10:15PM Aug 13, 2017Observed: 3.39 ft at 10:30PM Aug 13, 2017Observed: 3.41 ft at 10:45PM Aug 13, 2017Observed: 3.4 ft at 11:00PM Aug 13, 2017Observed: 3.41 ft at 11:15PM Aug 13, 2017Observed: 3.41 ft at 11:30PM Aug 13, 2017Observed: 3.42 ft at 11:45PM Aug 13, 2017Observed: 3.4 ft at 12:00AM Aug 14, 2017Observed: 3.4 ft at 12:15AM Aug 14, 2017Observed: 3.41 ft at 12:30AM Aug 14, 2017Observed: 3.4 ft at 12:45AM Aug 14, 2017Observed: 3.41 ft at 1:00AM Aug 14, 2017Observed: 3.41 ft at 1:15AM Aug 14, 2017Observed: 3.44 ft at 1:30AM Aug 14, 2017Observed: 3.43 ft at 1:45AM Aug 14, 2017Observed: 3.4 ft at 2:00AM Aug 14, 2017Observed: 3.43 ft at 2:15AM Aug 14, 2017Observed: 3.45 ft at 2:30AM Aug 14, 2017Observed: 3.45 ft at 2:45AM Aug 14, 2017Observed: 3.45 ft at 3:00AM Aug 14, 2017Observed: 3.42 ft at 3:15AM Aug 14, 2017Observed: 3.42 ft at 3:30AM Aug 14, 2017Observed: 3.42 ft at 3:45AM Aug 14, 2017Observed: 3.43 ft at 4:00AM Aug 14, 2017Observed: 3.43 ft at 4:15AM Aug 14, 2017Observed: 3.46 ft at 4:30AM Aug 14, 2017Observed: 3.45 ft at 4:45AM Aug 14, 2017Observed: 3.49 ft at 5:00AM Aug 14, 2017Observed: 3.56 ft at 5:15AM Aug 14, 2017Observed: 3.54 ft at 5:30AM Aug 14, 2017Observed: 3.53 ft at 5:45AM Aug 14, 2017Observed: 3.51 ft at 6:00AM Aug 14, 2017Observed: 3.55 ft at 6:15AM Aug 14, 2017Observed: 3.55 ft at 6:30AM Aug 14, 2017Observed: 3.54 ft at 6:45AM Aug 14, 2017Observed: 3.52 ft at 7:00AM Aug 14, 2017Observed: 3.53 ft at 7:15AM Aug 14, 2017Observed: 3.53 ft at 7:30AM Aug 14, 2017Observed: 3.58 ft at 7:45AM Aug 14, 2017Observed: 3.54 ft at 8:00AM Aug 14, 2017Observed: 3.59 ft at 8:15AM Aug 14, 2017Observed: 3.56 ft at 8:30AM Aug 14, 2017Observed: 3.57 ft at 8:45AM Aug 14, 2017Observed: 3.58 ft at 9:00AM Aug 14, 2017Observed: 3.59 ft at 9:15AM Aug 14, 2017Observed: 3.54 ft at 9:30AM Aug 14, 2017Observed: 3.56 ft at 9:45AM Aug 14, 2017Observed: 3.57 ft at 10:00AM Aug 14, 2017Observed: 3.56 ft at 10:15AM Aug 14, 2017Observed: 3.58 ft at 10:30AM Aug 14, 2017Observed: 3.57 ft at 10:45AM Aug 14, 2017Observed: 3.43 ft at 11:15AM Aug 14, 2017Observed: 3.43 ft at 11:30AM Aug 14, 2017Observed: 3.43 ft at 11:45AM Aug 14, 2017Observed: 3.43 ft at 12:00PM Aug 14, 2017Observed: 3.42 ft at 12:15PM Aug 14, 2017Observed: 3.43 ft at 12:30PM Aug 14, 2017Observed: 3.42 ft at 12:45PM Aug 14, 2017Observed: 3.42 ft at 1:00PM Aug 14, 2017Observed: 3.42 ft at 1:15PM Aug 14, 2017Observed: 3.42 ft at 1:30PM Aug 14, 2017Observed: 3.43 ft at 1:45PM Aug 14, 2017Observed: 3.42 ft at 2:00PM Aug 14, 2017Observed: 3.42 ft at 2:15PM Aug 14, 2017Observed: 3.42 ft at 2:30PM Aug 14, 2017Observed: 3.42 ft at 2:45PM Aug 14, 2017Observed: 3.43 ft at 3:00PM Aug 14, 2017Observed: 3.42 ft at 3:15PM Aug 14, 2017Observed: 3.43 ft at 3:30PM Aug 14, 2017Observed: 3.42 ft at 3:45PM Aug 14, 2017Observed: 3.43 ft at 4:00PM Aug 14, 2017Observed: 3.43 ft at 4:15PM Aug 14, 2017Observed: 3.43 ft at 4:30PM Aug 14, 2017Observed: 3.43 ft at 4:45PM Aug 14, 2017Observed: 3.43 ft at 5:00PM Aug 14, 2017Observed: 3.43 ft at 5:15PM Aug 14, 2017Observed: 3.43 ft at 5:30PM Aug 14, 2017Observed: 3.43 ft at 5:45PM Aug 14, 2017Observed: 3.43 ft at 6:00PM Aug 14, 2017Observed: 3.44 ft at 6:15PM Aug 14, 2017Observed: 3.44 ft at 6:30PM Aug 14, 2017Observed: 3.43 ft at 6:45PM Aug 14, 2017Observed: 3.44 ft at 7:00PM Aug 14, 2017Observed: 3.43 ft at 7:15PM Aug 14, 2017Observed: 3.43 ft at 7:30PM Aug 14, 2017Observed: 3.43 ft at 7:45PM Aug 14, 2017Observed: 3.43 ft at 8:00PM Aug 14, 2017Observed: 3.42 ft at 8:15PM Aug 14, 2017Observed: 3.42 ft at 8:30PM Aug 14, 2017Observed: 3.41 ft at 8:45PM Aug 14, 2017Observed: 3.41 ft at 9:00PM Aug 14, 2017Observed: 3.41 ft at 9:15PM Aug 14, 2017Observed: 3.41 ft at 9:30PM Aug 14, 2017Observed: 3.42 ft at 9:45PM Aug 14, 2017Observed: 3.42 ft at 10:00PM Aug 14, 2017Observed: 3.41 ft at 10:15PM Aug 14, 2017Observed: 3.41 ft at 10:30PM Aug 14, 2017Observed: 3.4 ft at 10:45PM Aug 14, 2017Observed: 3.41 ft at 11:00PM Aug 14, 2017Observed: 3.41 ft at 11:15PM Aug 14, 2017Observed: 3.41 ft at 11:30PM Aug 14, 2017Observed: 3.41 ft at 11:45PM Aug 14, 2017Observed: 3.41 ft at 12:00AM Aug 15, 2017Observed: 3.4 ft at 12:15AM Aug 15, 2017Observed: 3.41 ft at 12:30AM Aug 15, 2017Observed: 3.41 ft at 12:45AM Aug 15, 2017Observed: 3.41 ft at 1:00AM Aug 15, 2017Observed: 3.41 ft at 1:15AM Aug 15, 2017Observed: 3.41 ft at 1:30AM Aug 15, 2017Observed: 3.41 ft at 1:45AM Aug 15, 2017Observed: 3.41 ft at 2:00AM Aug 15, 2017Observed: 3.42 ft at 2:15AM Aug 15, 2017Observed: 3.41 ft at 2:30AM Aug 15, 2017Observed: 3.41 ft at 2:45AM Aug 15, 2017Observed: 3.41 ft at 3:00AM Aug 15, 2017Observed: 3.41 ft at 3:15AM Aug 15, 2017Observed: 3.41 ft at 3:30AM Aug 15, 2017Observed: 3.42 ft at 3:45AM Aug 15, 2017Observed: 3.42 ft at 4:00AM Aug 15, 2017Observed: 3.43 ft at 4:15AM Aug 15, 2017Observed: 3.43 ft at 4:30AM Aug 15, 2017Observed: 3.43 ft at 4:45AM Aug 15, 2017Observed: 3.43 ft at 5:00AM Aug 15, 2017Observed: 3.43 ft at 5:15AM Aug 15, 2017Observed: 3.44 ft at 5:30AM Aug 15, 2017Observed: 3.44 ft at 5:45AM Aug 15, 2017Observed: 3.45 ft at 6:00AM Aug 15, 2017Observed: 3.44 ft at 6:15AM Aug 15, 2017Observed: 3.45 ft at 6:30AM Aug 15, 2017Observed: 3.46 ft at 6:45AM Aug 15, 2017Observed: 3.46 ft at 7:00AM Aug 15, 2017Observed: 3.47 ft at 7:15AM Aug 15, 2017Observed: 3.47 ft at 7:30AM Aug 15, 2017Observed: 3.48 ft at 7:45AM Aug 15, 2017Observed: 3.48 ft at 8:00AM Aug 15, 2017Observed: 3.48 ft at 8:15AM Aug 15, 2017Observed: 3.49 ft at 8:30AM Aug 15, 2017Observed: 3.49 ft at 8:45AM Aug 15, 2017Observed: 3.5 ft at 9:00AM Aug 15, 2017Observed: 3.49 ft at 9:15AM Aug 15, 2017Observed: 3.5 ft at 9:30AM Aug 15, 2017Observed: 3.51 ft at 9:45AM Aug 15, 2017Observed: 3.51 ft at 10:00AM Aug 15, 2017Observed: 3.51 ft at 10:15AM Aug 15, 2017Observed: 3.51 ft at 10:30AM Aug 15, 2017Observed: 3.52 ft at 10:45AM Aug 15, 2017Observed: 3.51 ft at 11:00AM Aug 15, 2017Observed: 3.51 ft at 11:15AM Aug 15, 2017Observed: 3.52 ft at 11:30AM Aug 15, 2017Observed: 3.51 ft at 11:45AM Aug 15, 2017Observed: 3.52 ft at 12:00PM Aug 15, 2017Observed: 3.51 ft at 12:15PM Aug 15, 2017Observed: 3.51 ft at 12:30PM Aug 15, 2017Observed: 3.52 ft at 12:45PM Aug 15, 2017Observed: 3.51 ft at 1:00PM Aug 15, 2017Observed: 3.51 ft at 1:15PM Aug 15, 2017Observed: 3.51 ft at 1:30PM Aug 15, 2017Observed: 3.51 ft at 1:45PM Aug 15, 2017Observed: 3.51 ft at 2:00PM Aug 15, 2017Observed: 3.5 ft at 2:15PM Aug 15, 2017Observed: 3.51 ft at 2:30PM Aug 15, 2017Observed: 3.5 ft at 2:45PM Aug 15, 2017Observed: 3.5 ft at 3:00PM Aug 15, 2017Observed: 3.5 ft at 3:15PM Aug 15, 2017Observed: 3.49 ft at 3:30PM Aug 15, 2017Observed: 3.49 ft at 3:45PM Aug 15, 2017Observed: 3.48 ft at 4:00PM Aug 15, 2017Observed: 3.49 ft at 4:15PM Aug 15, 2017Observed: 3.48 ft at 4:30PM Aug 15, 2017Observed: 3.48 ft at 4:45PM Aug 15, 2017Observed: 3.49 ft at 5:00PM Aug 15, 2017Observed: 3.48 ft at 5:15PM Aug 15, 2017Observed: 3.48 ft at 5:30PM Aug 15, 2017Observed: 3.48 ft at 5:45PM Aug 15, 2017Observed: 3.48 ft at 6:00PM Aug 15, 2017Observed: 3.47 ft at 6:15PM Aug 15, 2017Observed: 3.47 ft at 6:30PM Aug 15, 2017Observed: 3.47 ft at 6:45PM Aug 15, 2017Observed: 3.46 ft at 7:00PM Aug 15, 2017Observed: 3.47 ft at 7:15PM Aug 15, 2017Observed: 3.46 ft at 7:30PM Aug 15, 2017Observed: 3.46 ft at 7:45PM Aug 15, 2017Observed: 3.46 ft at 8:00PM Aug 15, 2017Observed: 3.46 ft at 8:15PM Aug 15, 2017Observed: 3.46 ft at 8:30PM Aug 15, 2017Observed: 3.46 ft at 8:45PM Aug 15, 2017Observed: 3.45 ft at 9:00PM Aug 15, 2017Observed: 3.46 ft at 9:15PM Aug 15, 2017Observed: 3.44 ft at 9:30PM Aug 15, 2017Observed: 3.44 ft at 9:45PM Aug 15, 2017Observed: 3.45 ft at 10:00PM Aug 15, 2017Observed: 3.44 ft at 10:15PM Aug 15, 2017Observed: 3.43 ft at 10:30PM Aug 15, 2017Observed: 3.44 ft at 10:45PM Aug 15, 2017Observed: 3.43 ft at 11:00PM Aug 15, 2017Observed: 3.44 ft at 11:15PM Aug 15, 2017Observed: 3.43 ft at 11:30PM Aug 15, 2017Observed: 3.43 ft at 11:45PM Aug 15, 2017Observed: 3.43 ft at 12:00AM Aug 16, 2017Observed: 3.43 ft at 12:15AM Aug 16, 2017Observed: 3.42 ft at 12:30AM Aug 16, 2017Observed: 3.43 ft at 12:45AM Aug 16, 2017Observed: 3.43 ft at 1:00AM Aug 16, 2017Observed: 3.43 ft at 1:15AM Aug 16, 2017Observed: 3.42 ft at 1:30AM Aug 16, 2017Observed: 3.42 ft at 1:45AM Aug 16, 2017Observed: 3.42 ft at 2:00AM Aug 16, 2017Observed: 3.42 ft at 2:15AM Aug 16, 2017Observed: 3.42 ft at 2:30AM Aug 16, 2017Observed: 3.41 ft at 2:45AM Aug 16, 2017Observed: 3.41 ft at 3:00AM Aug 16, 2017Observed: 3.42 ft at 3:15AM Aug 16, 2017Observed: 3.41 ft at 3:30AM Aug 16, 2017Observed: 3.41 ft at 3:45AM Aug 16, 2017Observed: 3.41 ft at 4:00AM Aug 16, 2017Observed: 3.42 ft at 4:15AM Aug 16, 2017Observed: 3.42 ft at 4:30AM Aug 16, 2017Observed: 3.41 ft at 4:45AM Aug 16, 2017Observed: 3.41 ft at 5:00AM Aug 16, 2017Observed: 3.41 ft at 5:15AM Aug 16, 2017Observed: 3.41 ft at 5:30AM Aug 16, 2017Observed: 3.41 ft at 5:45AM Aug 16, 2017Observed: 3.41 ft at 6:00AM Aug 16, 2017Observed: 3.41 ft at 6:15AM Aug 16, 2017Observed: 3.4 ft at 6:30AM Aug 16, 2017Observed: 3.4 ft at 6:45AM Aug 16, 2017Observed: 3.4 ft at 7:00AM Aug 16, 2017Observed: 3.4 ft at 7:15AM Aug 16, 2017Observed: 3.41 ft at 7:30AM Aug 16, 2017Observed: 3.4 ft at 7:45AM Aug 16, 2017Observed: 3.4 ft at 8:00AM Aug 16, 2017Observed: 3.4 ft at 8:15AM Aug 16, 2017Observed: 3.41 ft at 8:30AM Aug 16, 2017Observed: 3.4 ft at 8:45AM Aug 16, 2017Observed: 3.4 ft at 9:00AM Aug 16, 2017Observed: 3.41 ft at 9:15AM Aug 16, 2017Observed: 3.4 ft at 9:30AM Aug 16, 2017Observed: 3.4 ft at 9:45AM Aug 16, 2017Observed: 3.41 ft at 10:00AM Aug 16, 2017Observed: 3.4 ft at 10:15AM Aug 16, 2017Observed: 3.41 ft at 10:30AM Aug 16, 2017Observed: 3.4 ft at 10:45AM Aug 16, 2017Observed: 3.4 ft at 11:00AM Aug 16, 2017Observed: 3.4 ft at 11:15AM Aug 16, 2017Observed: 3.41 ft at 11:30AM Aug 16, 2017USGS--Water Resources of the United StatesMCWI4(plotting HGIRG) Graph Created (12:17PM Aug 16, 2017)ObservedLatest observed value: 3.41 ft at 11:30 AM CDT 16-Aug-2017. Flood Stage is 10 ft
Flood Impacts

If you notice any errors in the below information, please contact our Webmaster

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): -9999

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) 14.07 ft on 09/22/2016
(6) 13.70 ft on 04/06/1965
(7) 13.06 ft on 08/31/1962
(8) 12.59 ft on 04/01/1993
(9) 12.44 ft on 04/07/1951
(10) 12.30 ft on 05/23/2004
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.07 ft on 09/22/2016
(2) 8.82 ft on 09/16/2016
(3) 7.82 ft on 09/10/2016
(4) 9.65 ft on 09/07/2016
(5) 9.29 ft on 08/24/2016
(6) 8.64 ft on 07/17/2016
(7) 7.25 ft on 06/15/2016
(8) 7.85 ft on 06/11/2016
(9) 6.66 ft on 02/23/2016
(10) 6.67 ft on 12/15/2015
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 2.68 ft on 10/01/1988
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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.
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Page last modified: 21-Dec-2016 5:20 PM
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