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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: 4.67
Current Warnings/Statements/Advisories:None currently.
at Mason City
Stage (ft)Flow (cfs)Observed: 4.48 ft at 6:15PM Dec 05, 2016Observed: 4.49 ft at 6:30PM Dec 05, 2016Observed: 4.48 ft at 6:45PM Dec 05, 2016Observed: 4.48 ft at 7:00PM Dec 05, 2016Observed: 4.48 ft at 7:15PM Dec 05, 2016Observed: 4.5 ft at 7:30PM Dec 05, 2016Observed: 4.49 ft at 7:45PM Dec 05, 2016Observed: 4.49 ft at 8:00PM Dec 05, 2016Observed: 4.5 ft at 8:15PM Dec 05, 2016Observed: 4.5 ft at 8:30PM Dec 05, 2016Observed: 4.5 ft at 8:45PM Dec 05, 2016Observed: 4.5 ft at 9:00PM Dec 05, 2016Observed: 4.5 ft at 9:15PM Dec 05, 2016Observed: 4.49 ft at 9:30PM Dec 05, 2016Observed: 4.5 ft at 9:45PM Dec 05, 2016Observed: 4.5 ft at 10:00PM Dec 05, 2016Observed: 4.51 ft at 10:15PM Dec 05, 2016Observed: 4.5 ft at 10:30PM Dec 05, 2016Observed: 4.51 ft at 10:45PM Dec 05, 2016Observed: 4.5 ft at 11:00PM Dec 05, 2016Observed: 4.5 ft at 11:15PM Dec 05, 2016Observed: 4.51 ft at 11:30PM Dec 05, 2016Observed: 4.51 ft at 11:45PM Dec 05, 2016Observed: 4.52 ft at 12:00AM Dec 06, 2016Observed: 4.5 ft at 12:15AM Dec 06, 2016Observed: 4.51 ft at 12:30AM Dec 06, 2016Observed: 4.52 ft at 12:45AM Dec 06, 2016Observed: 4.52 ft at 1:00AM Dec 06, 2016Observed: 4.52 ft at 1:15AM Dec 06, 2016Observed: 4.51 ft at 1:30AM Dec 06, 2016Observed: 4.51 ft at 1:45AM Dec 06, 2016Observed: 4.52 ft at 2:00AM Dec 06, 2016Observed: 4.52 ft at 2:15AM Dec 06, 2016Observed: 4.52 ft at 2:30AM Dec 06, 2016Observed: 4.53 ft at 2:45AM Dec 06, 2016Observed: 4.52 ft at 3:00AM Dec 06, 2016Observed: 4.53 ft at 3:15AM Dec 06, 2016Observed: 4.52 ft at 3:30AM Dec 06, 2016Observed: 4.53 ft at 3:45AM Dec 06, 2016Observed: 4.53 ft at 4:00AM Dec 06, 2016Observed: 4.54 ft at 4:15AM Dec 06, 2016Observed: 4.51 ft at 4:30AM Dec 06, 2016Observed: 4.52 ft at 4:45AM Dec 06, 2016Observed: 4.53 ft at 5:00AM Dec 06, 2016Observed: 4.52 ft at 5:15AM Dec 06, 2016Observed: 4.53 ft at 5:30AM Dec 06, 2016Observed: 4.52 ft at 5:45AM Dec 06, 2016Observed: 4.52 ft at 6:00AM Dec 06, 2016Observed: 4.52 ft at 6:15AM Dec 06, 2016Observed: 4.52 ft at 6:30AM Dec 06, 2016Observed: 4.53 ft at 6:45AM Dec 06, 2016Observed: 4.52 ft at 7:00AM Dec 06, 2016Observed: 4.52 ft at 7:15AM Dec 06, 2016Observed: 4.53 ft at 7:30AM Dec 06, 2016Observed: 4.54 ft at 7:45AM Dec 06, 2016Observed: 4.53 ft at 8:00AM Dec 06, 2016Observed: 4.53 ft at 8:15AM Dec 06, 2016Observed: 4.52 ft at 8:30AM Dec 06, 2016Observed: 4.52 ft at 8:45AM Dec 06, 2016Observed: 4.53 ft at 9:00AM Dec 06, 2016Observed: 4.52 ft at 9:15AM Dec 06, 2016Observed: 4.52 ft at 9:30AM Dec 06, 2016Observed: 4.53 ft at 9:45AM Dec 06, 2016Observed: 4.53 ft at 10:00AM Dec 06, 2016Observed: 4.51 ft at 10:15AM Dec 06, 2016Observed: 4.53 ft at 10:30AM Dec 06, 2016Observed: 4.51 ft at 10:45AM Dec 06, 2016Observed: 4.53 ft at 11:00AM Dec 06, 2016Observed: 4.53 ft at 11:15AM Dec 06, 2016Observed: 4.53 ft at 11:30AM Dec 06, 2016Observed: 4.52 ft at 12:45PM Dec 06, 2016Observed: 4.51 ft at 1:00PM Dec 06, 2016Observed: 4.51 ft at 1:15PM Dec 06, 2016Observed: 4.52 ft at 1:30PM Dec 06, 2016Observed: 4.51 ft at 1:45PM Dec 06, 2016Observed: 4.5 ft at 2:00PM Dec 06, 2016Observed: 4.51 ft at 2:15PM Dec 06, 2016Observed: 4.52 ft at 2:30PM Dec 06, 2016Observed: 4.51 ft at 2:45PM Dec 06, 2016Observed: 4.52 ft at 3:00PM Dec 06, 2016Observed: 4.51 ft at 3:15PM Dec 06, 2016Observed: 4.51 ft at 3:30PM Dec 06, 2016Observed: 4.51 ft at 3:45PM Dec 06, 2016Observed: 4.52 ft at 4:00PM Dec 06, 2016Observed: 4.53 ft at 4:15PM Dec 06, 2016Observed: 4.52 ft at 4:30PM Dec 06, 2016Observed: 4.51 ft at 4:45PM Dec 06, 2016Observed: 4.52 ft at 5:00PM Dec 06, 2016Observed: 4.52 ft at 5:15PM Dec 06, 2016Observed: 4.53 ft at 5:30PM Dec 06, 2016Observed: 4.52 ft at 5:45PM Dec 06, 2016Observed: 4.53 ft at 6:00PM Dec 06, 2016Observed: 4.52 ft at 6:15PM Dec 06, 2016Observed: 4.52 ft at 6:30PM Dec 06, 2016Observed: 4.53 ft at 6:45PM Dec 06, 2016Observed: 4.52 ft at 7:00PM Dec 06, 2016Observed: 4.51 ft at 7:15PM Dec 06, 2016Observed: 4.53 ft at 7:30PM Dec 06, 2016Observed: 4.52 ft at 7:45PM Dec 06, 2016Observed: 4.52 ft at 8:00PM Dec 06, 2016Observed: 4.52 ft at 8:15PM Dec 06, 2016Observed: 4.53 ft at 8:30PM Dec 06, 2016Observed: 4.53 ft at 8:45PM Dec 06, 2016Observed: 4.51 ft at 9:00PM Dec 06, 2016Observed: 4.53 ft at 9:15PM Dec 06, 2016Observed: 4.53 ft at 9:30PM Dec 06, 2016Observed: 4.51 ft at 9:45PM Dec 06, 2016Observed: 4.51 ft at 10:00PM Dec 06, 2016Observed: 4.52 ft at 10:15PM Dec 06, 2016Observed: 4.52 ft at 10:30PM Dec 06, 2016Observed: 4.52 ft at 10:45PM Dec 06, 2016Observed: 4.51 ft at 11:00PM Dec 06, 2016Observed: 4.52 ft at 11:15PM Dec 06, 2016Observed: 4.51 ft at 11:30PM Dec 06, 2016Observed: 4.52 ft at 11:45PM Dec 06, 2016Observed: 4.52 ft at 12:00AM Dec 07, 2016Observed: 4.51 ft at 12:15AM Dec 07, 2016Observed: 4.51 ft at 12:30AM Dec 07, 2016Observed: 4.51 ft at 12:45AM Dec 07, 2016Observed: 4.51 ft at 1:00AM Dec 07, 2016Observed: 4.51 ft at 1:15AM Dec 07, 2016Observed: 4.51 ft at 1:30AM Dec 07, 2016Observed: 4.51 ft at 1:45AM Dec 07, 2016Observed: 4.51 ft at 2:00AM Dec 07, 2016Observed: 4.51 ft at 2:15AM Dec 07, 2016Observed: 4.5 ft at 2:30AM Dec 07, 2016Observed: 4.49 ft at 2:45AM Dec 07, 2016Observed: 4.5 ft at 3:00AM Dec 07, 2016Observed: 4.49 ft at 3:15AM Dec 07, 2016Observed: 4.48 ft at 3:30AM Dec 07, 2016Observed: 4.49 ft at 3:45AM Dec 07, 2016Observed: 4.48 ft at 4:00AM Dec 07, 2016Observed: 4.48 ft at 4:15AM Dec 07, 2016Observed: 4.49 ft at 4:30AM Dec 07, 2016Observed: 4.49 ft at 4:45AM Dec 07, 2016Observed: 4.49 ft at 5:00AM Dec 07, 2016Observed: 4.47 ft at 5:15AM Dec 07, 2016Observed: 4.47 ft at 5:30AM Dec 07, 2016Observed: 4.47 ft at 5:45AM Dec 07, 2016Observed: 4.48 ft at 6:00AM Dec 07, 2016Observed: 4.48 ft at 6:15AM Dec 07, 2016Observed: 4.47 ft at 6:30AM Dec 07, 2016Observed: 4.46 ft at 6:45AM Dec 07, 2016Observed: 4.47 ft at 7:00AM Dec 07, 2016Observed: 4.47 ft at 7:15AM Dec 07, 2016Observed: 4.46 ft at 7:30AM Dec 07, 2016Observed: 4.46 ft at 7:45AM Dec 07, 2016Observed: 4.45 ft at 8:00AM Dec 07, 2016Observed: 4.46 ft at 8:15AM Dec 07, 2016Observed: 4.45 ft at 8:30AM Dec 07, 2016Observed: 4.45 ft at 8:45AM Dec 07, 2016Observed: 4.44 ft at 9:00AM Dec 07, 2016Observed: 4.44 ft at 9:15AM Dec 07, 2016Observed: 4.44 ft at 9:30AM Dec 07, 2016Observed: 4.47 ft at 9:45AM Dec 07, 2016Observed: 4.46 ft at 10:00AM Dec 07, 2016Observed: 4.46 ft at 10:15AM Dec 07, 2016Observed: 4.45 ft at 10:30AM Dec 07, 2016Observed: 4.47 ft at 10:45AM Dec 07, 2016Observed: 4.47 ft at 11:00AM Dec 07, 2016Observed: 4.46 ft at 11:15AM Dec 07, 2016Observed: 4.47 ft at 11:30AM Dec 07, 2016Observed: 4.47 ft at 11:45AM Dec 07, 2016Observed: 4.47 ft at 12:00PM Dec 07, 2016Observed: 4.46 ft at 12:15PM Dec 07, 2016Observed: 4.45 ft at 12:30PM Dec 07, 2016Observed: 4.46 ft at 12:45PM Dec 07, 2016Observed: 4.45 ft at 1:00PM Dec 07, 2016Observed: 4.46 ft at 1:15PM Dec 07, 2016Observed: 4.46 ft at 1:30PM Dec 07, 2016Observed: 4.45 ft at 1:45PM Dec 07, 2016Observed: 4.45 ft at 2:00PM Dec 07, 2016Observed: 4.44 ft at 2:15PM Dec 07, 2016Observed: 4.46 ft at 2:30PM Dec 07, 2016Observed: 4.45 ft at 2:45PM Dec 07, 2016Observed: 4.46 ft at 3:00PM Dec 07, 2016Observed: 4.44 ft at 3:15PM Dec 07, 2016Observed: 4.46 ft at 3:30PM Dec 07, 2016Observed: 4.45 ft at 3:45PM Dec 07, 2016Observed: 4.46 ft at 4:00PM Dec 07, 2016Observed: 4.45 ft at 4:15PM Dec 07, 2016Observed: 4.46 ft at 4:30PM Dec 07, 2016Observed: 4.45 ft at 4:45PM Dec 07, 2016Observed: 4.45 ft at 5:00PM Dec 07, 2016Observed: 4.43 ft at 5:15PM Dec 07, 2016Observed: 4.46 ft at 5:30PM Dec 07, 2016Observed: 4.45 ft at 5:45PM Dec 07, 2016Observed: 4.45 ft at 6:00PM Dec 07, 2016Observed: 4.44 ft at 6:15PM Dec 07, 2016Observed: 4.46 ft at 6:30PM Dec 07, 2016Observed: 4.45 ft at 6:45PM Dec 07, 2016Observed: 4.45 ft at 7:00PM Dec 07, 2016Observed: 4.44 ft at 7:15PM Dec 07, 2016Observed: 4.46 ft at 7:30PM Dec 07, 2016Observed: 4.45 ft at 7:45PM Dec 07, 2016Observed: 4.43 ft at 8:00PM Dec 07, 2016Observed: 4.44 ft at 8:15PM Dec 07, 2016Observed: 4.44 ft at 8:30PM Dec 07, 2016Observed: 4.42 ft at 8:45PM Dec 07, 2016Observed: 4.43 ft at 9:00PM Dec 07, 2016Observed: 4.42 ft at 9:15PM Dec 07, 2016Observed: 4.41 ft at 9:30PM Dec 07, 2016Observed: 4.41 ft at 9:45PM Dec 07, 2016Observed: 4.41 ft at 10:00PM Dec 07, 2016Observed: 4.4 ft at 10:15PM Dec 07, 2016Observed: 4.41 ft at 10:30PM Dec 07, 2016Observed: 4.4 ft at 10:45PM Dec 07, 2016Observed: 4.39 ft at 11:00PM Dec 07, 2016Observed: 4.37 ft at 11:15PM Dec 07, 2016Observed: 4.35 ft at 11:30PM Dec 07, 2016Observed: 4.35 ft at 11:45PM Dec 07, 2016Observed: 4.33 ft at 12:00AM Dec 08, 2016Observed: 4.32 ft at 12:15AM Dec 08, 2016Observed: 4.32 ft at 12:30AM Dec 08, 2016Observed: 4.32 ft at 12:45AM Dec 08, 2016Observed: 4.31 ft at 1:00AM Dec 08, 2016Observed: 4.31 ft at 1:15AM Dec 08, 2016Observed: 4.29 ft at 1:30AM Dec 08, 2016Observed: 4.3 ft at 1:45AM Dec 08, 2016Observed: 4.29 ft at 2:00AM Dec 08, 2016Observed: 4.3 ft at 2:15AM Dec 08, 2016Observed: 4.28 ft at 2:30AM Dec 08, 2016Observed: 4.29 ft at 2:45AM Dec 08, 2016Observed: 4.28 ft at 3:00AM Dec 08, 2016Observed: 4.29 ft at 3:15AM Dec 08, 2016Observed: 4.28 ft at 3:30AM Dec 08, 2016Observed: 4.27 ft at 3:45AM Dec 08, 2016Observed: 4.28 ft at 4:00AM Dec 08, 2016Observed: 4.27 ft at 4:15AM Dec 08, 2016Observed: 4.28 ft at 4:30AM Dec 08, 2016Observed: 4.29 ft at 4:45AM Dec 08, 2016Observed: 4.29 ft at 5:00AM Dec 08, 2016Observed: 4.28 ft at 5:15AM Dec 08, 2016Observed: 4.28 ft at 5:30AM Dec 08, 2016Observed: 4.28 ft at 5:45AM Dec 08, 2016Observed: 4.27 ft at 6:00AM Dec 08, 2016Observed: 4.3 ft at 6:15AM Dec 08, 2016Observed: 4.29 ft at 6:30AM Dec 08, 2016Observed: 4.27 ft at 6:45AM Dec 08, 2016Observed: 4.32 ft at 7:00AM Dec 08, 2016Observed: 4.33 ft at 7:15AM Dec 08, 2016Observed: 4.33 ft at 7:30AM Dec 08, 2016Observed: 4.37 ft at 7:45AM Dec 08, 2016Observed: 4.38 ft at 8:00AM Dec 08, 2016Observed: 4.4 ft at 8:15AM Dec 08, 2016Observed: 4.38 ft at 8:30AM Dec 08, 2016Observed: 4.34 ft at 8:45AM Dec 08, 2016Observed: 4.31 ft at 9:00AM Dec 08, 2016Observed: 4.3 ft at 9:15AM Dec 08, 2016Observed: 4.27 ft at 9:30AM Dec 08, 2016Observed: 4.28 ft at 9:45AM Dec 08, 2016Observed: 4.3 ft at 10:00AM Dec 08, 2016Observed: 4.31 ft at 10:15AM Dec 08, 2016Observed: 4.3 ft at 10:30AM Dec 08, 2016Observed: 4.3 ft at 10:45AM Dec 08, 2016Observed: 4.31 ft at 11:00AM Dec 08, 2016Observed: 4.31 ft at 11:15AM Dec 08, 2016Observed: 4.31 ft at 11:30AM Dec 08, 2016Observed: 4.25 ft at 11:45AM Dec 08, 2016Observed: 4.17 ft at 12:00PM Dec 08, 2016Observed: 4.16 ft at 12:15PM Dec 08, 2016Observed: 4.16 ft at 12:30PM Dec 08, 2016Observed: 4.19 ft at 12:45PM Dec 08, 2016Observed: 4.23 ft at 1:00PM Dec 08, 2016Observed: 4.31 ft at 1:15PM Dec 08, 2016Observed: 4.31 ft at 1:30PM Dec 08, 2016Observed: 4.37 ft at 1:45PM Dec 08, 2016Observed: 4.49 ft at 2:00PM Dec 08, 2016Observed: 4.52 ft at 2:15PM Dec 08, 2016Observed: 4.53 ft at 2:30PM Dec 08, 2016Observed: 4.59 ft at 2:45PM Dec 08, 2016Observed: 4.62 ft at 3:00PM Dec 08, 2016Observed: 4.73 ft at 3:15PM Dec 08, 2016Observed: 4.69 ft at 3:30PM Dec 08, 2016Observed: 4.77 ft at 3:45PM Dec 08, 2016Observed: 4.75 ft at 4:00PM Dec 08, 2016Observed: 4.72 ft at 4:15PM Dec 08, 2016Observed: 4.88 ft at 4:30PM Dec 08, 2016Observed: 4.83 ft at 4:45PM Dec 08, 2016Observed: 4.82 ft at 5:00PM Dec 08, 2016Observed: 4.8 ft at 5:15PM Dec 08, 2016Observed: 4.81 ft at 5:30PM Dec 08, 2016Observed: 4.77 ft at 5:45PM Dec 08, 2016Observed: 4.81 ft at 6:00PM Dec 08, 2016Observed: 4.87 ft at 6:15PM Dec 08, 2016Observed: 4.89 ft at 6:30PM Dec 08, 2016Observed: 4.9 ft at 6:45PM Dec 08, 2016Observed: 4.89 ft at 7:00PM Dec 08, 2016Observed: 4.9 ft at 7:15PM Dec 08, 2016Highest Observation: 4.92 ft at 7:30PM Dec 08, 2016Observed: 4.91 ft at 7:45PM Dec 08, 2016Observed: 4.9 ft at 8:00PM Dec 08, 2016Observed: 4.87 ft at 8:15PM Dec 08, 2016Observed: 4.86 ft at 8:30PM Dec 08, 2016Observed: 4.84 ft at 8:45PM Dec 08, 2016Observed: 4.81 ft at 9:00PM Dec 08, 2016Observed: 4.79 ft at 9:15PM Dec 08, 2016Observed: 4.77 ft at 9:30PM Dec 08, 2016Observed: 4.75 ft at 9:45PM Dec 08, 2016Observed: 4.72 ft at 10:00PM Dec 08, 2016Observed: 4.71 ft at 10:15PM Dec 08, 2016Observed: 4.69 ft at 10:30PM Dec 08, 2016Observed: 4.66 ft at 10:45PM Dec 08, 2016Observed: 4.63 ft at 11:00PM Dec 08, 2016Observed: 4.61 ft at 11:15PM Dec 08, 2016Observed: 4.62 ft at 11:30PM Dec 08, 2016Observed: 4.61 ft at 11:45PM Dec 08, 2016Observed: 4.61 ft at 12:00AM Dec 09, 2016Observed: 4.59 ft at 12:15AM Dec 09, 2016Observed: 4.57 ft at 12:30AM Dec 09, 2016Observed: 4.56 ft at 12:45AM Dec 09, 2016Observed: 4.65 ft at 1:00AM Dec 09, 2016Observed: 4.47 ft at 1:15AM Dec 09, 2016Observed: 4.28 ft at 1:30AM Dec 09, 2016Observed: 4.43 ft at 1:45AM Dec 09, 2016Observed: 4.78 ft at 2:00AM Dec 09, 2016Observed: 4.43 ft at 2:15AM Dec 09, 2016Observed: 4.62 ft at 2:30AM Dec 09, 2016Observed: 4.39 ft at 2:45AM Dec 09, 2016Observed: 4.35 ft at 3:00AM Dec 09, 2016Observed: 4.38 ft at 3:15AM Dec 09, 2016Observed: 4.3 ft at 3:30AM Dec 09, 2016Observed: 4.29 ft at 3:45AM Dec 09, 2016Observed: 4.29 ft at 4:00AM Dec 09, 2016Observed: 4.42 ft at 4:15AM Dec 09, 2016Observed: 4.53 ft at 4:30AM Dec 09, 2016Observed: 4.71 ft at 4:45AM Dec 09, 2016Observed: 4.89 ft at 5:00AM Dec 09, 2016Observed: 4.33 ft at 5:15AM Dec 09, 2016Observed: 4.61 ft at 5:30AM Dec 09, 2016Observed: 4.53 ft at 5:45AM Dec 09, 2016Observed: 4.79 ft at 6:00AM Dec 09, 2016Observed: 4.26 ft at 6:15AM Dec 09, 2016Observed: 4.4 ft at 6:30AM Dec 09, 2016Observed: 4.41 ft at 6:45AM Dec 09, 2016Observed: 4.73 ft at 7:00AM Dec 09, 2016Observed: 4.49 ft at 7:15AM Dec 09, 2016Observed: 4.52 ft at 7:30AM Dec 09, 2016Observed: 4.63 ft at 7:45AM Dec 09, 2016Observed: 4.69 ft at 8:00AM Dec 09, 2016Observed: 4.69 ft at 8:15AM Dec 09, 2016Observed: 4.51 ft at 8:30AM Dec 09, 2016Observed: 4.35 ft at 8:45AM Dec 09, 2016Observed: 4.35 ft at 9:00AM Dec 09, 2016Observed: 4.35 ft at 9:15AM Dec 09, 2016Observed: 4.35 ft at 9:30AM Dec 09, 2016Observed: 4.36 ft at 9:45AM Dec 09, 2016Observed: 4.38 ft at 10:00AM Dec 09, 2016Observed: 4.38 ft at 10:15AM Dec 09, 2016Observed: 4.3 ft at 10:30AM Dec 09, 2016Observed: 4.39 ft at 10:45AM Dec 09, 2016Observed: 4.65 ft at 11:00AM Dec 09, 2016Observed: 4.48 ft at 11:15AM Dec 09, 2016Observed: 4.39 ft at 11:30AM Dec 09, 2016Observed: 4.37 ft at 11:45AM Dec 09, 2016Observed: 4.38 ft at 12:00PM Dec 09, 2016Observed: 4.42 ft at 12:15PM Dec 09, 2016Observed: 4.57 ft at 12:30PM Dec 09, 2016Observed: 4.56 ft at 12:45PM Dec 09, 2016Observed: 4.54 ft at 1:00PM Dec 09, 2016Observed: 4.54 ft at 1:15PM Dec 09, 2016Observed: 4.57 ft at 1:30PM Dec 09, 2016Observed: 4.64 ft at 1:45PM Dec 09, 2016Observed: 4.68 ft at 2:00PM Dec 09, 2016Observed: 4.63 ft at 2:15PM Dec 09, 2016Observed: 4.63 ft at 2:30PM Dec 09, 2016Observed: 4.63 ft at 2:45PM Dec 09, 2016Observed: 4.64 ft at 3:00PM Dec 09, 2016Observed: 4.65 ft at 3:15PM Dec 09, 2016Observed: 4.67 ft at 3:30PM Dec 09, 2016Observed: 4.64 ft at 3:45PM Dec 09, 2016Observed: 4.55 ft at 4:00PM Dec 09, 2016Observed: 4.53 ft at 4:15PM Dec 09, 2016Observed: 4.55 ft at 4:30PM Dec 09, 2016Observed: 4.57 ft at 4:45PM Dec 09, 2016Observed: 4.59 ft at 5:00PM Dec 09, 2016Observed: 4.62 ft at 5:15PM Dec 09, 2016Observed: 4.64 ft at 5:30PM Dec 09, 2016Observed: 4.67 ft at 5:45PM Dec 09, 2016Observed: 4.68 ft at 6:00PM Dec 09, 2016Observed: 4.69 ft at 6:15PM Dec 09, 2016Observed: 4.7 ft at 6:30PM Dec 09, 2016Observed: 4.71 ft at 6:45PM Dec 09, 2016Observed: 4.71 ft at 7:00PM Dec 09, 2016Observed: 4.71 ft at 7:15PM Dec 09, 2016Observed: 4.71 ft at 7:30PM Dec 09, 2016Observed: 4.72 ft at 7:45PM Dec 09, 2016Observed: 4.72 ft at 8:00PM Dec 09, 2016Observed: 4.72 ft at 8:15PM Dec 09, 2016Observed: 4.72 ft at 8:30PM Dec 09, 2016Observed: 4.72 ft at 8:45PM Dec 09, 2016Observed: 4.72 ft at 9:00PM Dec 09, 2016Observed: 4.72 ft at 9:15PM Dec 09, 2016Observed: 4.72 ft at 9:30PM Dec 09, 2016Observed: 4.71 ft at 9:45PM Dec 09, 2016Observed: 4.7 ft at 10:00PM Dec 09, 2016Observed: 4.7 ft at 10:15PM Dec 09, 2016Observed: 4.7 ft at 10:30PM Dec 09, 2016Observed: 4.7 ft at 10:45PM Dec 09, 2016Observed: 4.69 ft at 11:00PM Dec 09, 2016Observed: 4.68 ft at 11:15PM Dec 09, 2016Observed: 4.68 ft at 11:30PM Dec 09, 2016Observed: 4.68 ft at 11:45PM Dec 09, 2016Observed: 4.67 ft at 12:00AM Dec 10, 2016Observed: 4.66 ft at 12:15AM Dec 10, 2016Observed: 4.65 ft at 12:30AM Dec 10, 2016Observed: 4.65 ft at 12:45AM Dec 10, 2016Observed: 4.64 ft at 1:00AM Dec 10, 2016Observed: 4.64 ft at 1:15AM Dec 10, 2016Observed: 4.63 ft at 1:30AM Dec 10, 2016Observed: 4.63 ft at 1:45AM Dec 10, 2016Observed: 4.63 ft at 2:00AM Dec 10, 2016Observed: 4.62 ft at 2:15AM Dec 10, 2016Observed: 4.62 ft at 2:30AM Dec 10, 2016Observed: 4.62 ft at 2:45AM Dec 10, 2016Observed: 4.62 ft at 3:00AM Dec 10, 2016Observed: 4.6 ft at 3:15AM Dec 10, 2016Observed: 4.58 ft at 3:30AM Dec 10, 2016Observed: 4.57 ft at 3:45AM Dec 10, 2016Observed: 4.56 ft at 4:00AM Dec 10, 2016Observed: 4.56 ft at 4:15AM Dec 10, 2016Observed: 4.57 ft at 4:30AM Dec 10, 2016Observed: 4.58 ft at 4:45AM Dec 10, 2016Observed: 4.59 ft at 5:00AM Dec 10, 2016Observed: 4.59 ft at 5:15AM Dec 10, 2016Observed: 4.57 ft at 5:30AM Dec 10, 2016Observed: 4.55 ft at 5:45AM Dec 10, 2016Observed: 4.54 ft at 6:00AM Dec 10, 2016Observed: 4.54 ft at 6:15AM Dec 10, 2016Observed: 4.55 ft at 6:30AM Dec 10, 2016Observed: 4.55 ft at 6:45AM Dec 10, 2016Observed: 4.56 ft at 7:00AM Dec 10, 2016Observed: 4.57 ft at 7:15AM Dec 10, 2016Observed: 4.57 ft at 7:30AM Dec 10, 2016Observed: 4.58 ft at 7:45AM Dec 10, 2016Observed: 4.57 ft at 8:00AM Dec 10, 2016Observed: 4.58 ft at 8:15AM Dec 10, 2016Observed: 4.6 ft at 8:30AM Dec 10, 2016Observed: 4.6 ft at 8:45AM Dec 10, 2016Observed: 4.59 ft at 9:00AM Dec 10, 2016Observed: 4.59 ft at 9:15AM Dec 10, 2016Observed: 4.58 ft at 9:30AM Dec 10, 2016Observed: 4.58 ft at 9:45AM Dec 10, 2016Observed: 4.6 ft at 10:00AM Dec 10, 2016Observed: 4.6 ft at 10:15AM Dec 10, 2016Observed: 4.6 ft at 10:30AM Dec 10, 2016Observed: 4.59 ft at 10:45AM Dec 10, 2016Observed: 4.58 ft at 11:00AM Dec 10, 2016Observed: 4.59 ft at 11:15AM Dec 10, 2016Observed: 4.58 ft at 11:30AM Dec 10, 2016Observed: 4.57 ft at 11:45AM Dec 10, 2016Observed: 4.56 ft at 12:00PM Dec 10, 2016Observed: 4.55 ft at 12:15PM Dec 10, 2016Observed: 4.52 ft at 12:30PM Dec 10, 2016Observed: 4.59 ft at 12:45PM Dec 10, 2016Observed: 4.7 ft at 1:00PM Dec 10, 2016Observed: 4.62 ft at 1:15PM Dec 10, 2016Observed: 4.55 ft at 1:30PM Dec 10, 2016Observed: 4.52 ft at 1:45PM Dec 10, 2016Observed: 4.52 ft at 2:00PM Dec 10, 2016Observed: 4.55 ft at 2:15PM Dec 10, 2016Observed: 4.59 ft at 2:30PM Dec 10, 2016Observed: 4.62 ft at 2:45PM Dec 10, 2016Observed: 4.65 ft at 3:00PM Dec 10, 2016Observed: 4.67 ft at 3:15PM Dec 10, 2016Observed: 4.67 ft at 3:30PM Dec 10, 2016Observed: 4.67 ft at 3:45PM Dec 10, 2016Observed: 4.67 ft at 4:00PM Dec 10, 2016Observed: 4.67 ft at 4:15PM Dec 10, 2016Observed: 4.68 ft at 4:30PM Dec 10, 2016Observed: 4.68 ft at 4:45PM Dec 10, 2016Observed: 4.68 ft at 5:00PM Dec 10, 2016Observed: 4.69 ft at 5:15PM Dec 10, 2016Observed: 4.67 ft at 5:30PM Dec 10, 2016USGS--Water Resources of the United StatesMCWI4(plotting HGIRG) Graph Created (6:03PM Dec 10, 2016)ObservedLatest observed value: 4.67 ft at 5:30 PM CST 10-Dec-2016. 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) 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
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(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
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(P): Preliminary values subject to further review.

Low Water Records
(1) 2.68 ft on 10/01/1988
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
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(515) 270-2614
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Page last modified: 7-Dec-2016 8:19 PM
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