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

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Flood Stage: 10 Feet
Latest Stage: 4.28
Current Warnings/Statements/Advisories:None currently.
at Mason City
Stage (ft)Observed: 4.87 ft at 4:30AM May 20, 2015Observed: 4.85 ft at 4:45AM May 20, 2015Highest Observation: 4.88 ft at 5:00AM May 20, 2015Highest Observation: 4.88 ft at 5:15AM May 20, 2015Observed: 4.87 ft at 5:30AM May 20, 2015Observed: 4.86 ft at 5:45AM May 20, 2015Observed: 4.86 ft at 6:00AM May 20, 2015Observed: 4.85 ft at 6:15AM May 20, 2015Observed: 4.86 ft at 6:30AM May 20, 2015Observed: 4.85 ft at 6:45AM May 20, 2015Observed: 4.86 ft at 7:00AM May 20, 2015Observed: 4.86 ft at 7:15AM May 20, 2015Observed: 4.84 ft at 7:30AM May 20, 2015Observed: 4.86 ft at 7:45AM May 20, 2015Observed: 4.84 ft at 8:00AM May 20, 2015Observed: 4.85 ft at 8:15AM May 20, 2015Observed: 4.84 ft at 8:30AM May 20, 2015Observed: 4.84 ft at 8:45AM May 20, 2015Observed: 4.84 ft at 9:00AM May 20, 2015Observed: 4.84 ft at 9:15AM May 20, 2015Observed: 4.83 ft at 9:30AM May 20, 2015Observed: 4.84 ft at 9:45AM May 20, 2015Observed: 4.83 ft at 10:00AM May 20, 2015Observed: 4.84 ft at 10:15AM May 20, 2015Observed: 4.81 ft at 10:30AM May 20, 2015Observed: 4.83 ft at 10:45AM May 20, 2015Observed: 4.83 ft at 11:00AM May 20, 2015Observed: 4.82 ft at 11:15AM May 20, 2015Observed: 4.8 ft at 11:30AM May 20, 2015Observed: 4.82 ft at 11:45AM May 20, 2015Observed: 4.81 ft at 12:00PM May 20, 2015Observed: 4.82 ft at 12:15PM May 20, 2015Observed: 4.82 ft at 12:30PM May 20, 2015Observed: 4.81 ft at 12:45PM May 20, 2015Observed: 4.82 ft at 1:00PM May 20, 2015Observed: 4.82 ft at 1:15PM May 20, 2015Observed: 4.82 ft at 1:30PM May 20, 2015Observed: 4.81 ft at 1:45PM May 20, 2015Observed: 4.81 ft at 2:00PM May 20, 2015Observed: 4.81 ft at 2:15PM May 20, 2015Observed: 4.81 ft at 2:30PM May 20, 2015Observed: 4.81 ft at 2:45PM May 20, 2015Observed: 4.81 ft at 3:00PM May 20, 2015Observed: 4.78 ft at 3:15PM May 20, 2015Observed: 4.8 ft at 3:30PM May 20, 2015Observed: 4.8 ft at 3:45PM May 20, 2015Observed: 4.8 ft at 4:00PM May 20, 2015Observed: 4.79 ft at 4:15PM May 20, 2015Observed: 4.8 ft at 4:30PM May 20, 2015Observed: 4.79 ft at 4:45PM May 20, 2015Observed: 4.78 ft at 5:00PM May 20, 2015Observed: 4.79 ft at 5:15PM May 20, 2015Observed: 4.77 ft at 5:30PM May 20, 2015Observed: 4.79 ft at 5:45PM May 20, 2015Observed: 4.77 ft at 6:00PM May 20, 2015Observed: 4.77 ft at 6:15PM May 20, 2015Observed: 4.77 ft at 6:30PM May 20, 2015Observed: 4.77 ft at 6:45PM May 20, 2015Observed: 4.77 ft at 7:00PM May 20, 2015Observed: 4.77 ft at 7:15PM May 20, 2015Observed: 4.77 ft at 7:30PM May 20, 2015Observed: 4.76 ft at 7:45PM May 20, 2015Observed: 4.77 ft at 8:00PM May 20, 2015Observed: 4.75 ft at 8:15PM May 20, 2015Observed: 4.76 ft at 8:30PM May 20, 2015Observed: 4.75 ft at 8:45PM May 20, 2015Observed: 4.73 ft at 9:00PM May 20, 2015Observed: 4.74 ft at 9:15PM May 20, 2015Observed: 4.75 ft at 9:30PM May 20, 2015Observed: 4.75 ft at 9:45PM May 20, 2015Observed: 4.75 ft at 10:00PM May 20, 2015Observed: 4.74 ft at 10:15PM May 20, 2015Observed: 4.74 ft at 10:30PM May 20, 2015Observed: 4.73 ft at 10:45PM May 20, 2015Observed: 4.75 ft at 11:00PM May 20, 2015Observed: 4.73 ft at 11:15PM May 20, 2015Observed: 4.73 ft at 11:30PM May 20, 2015Observed: 4.74 ft at 11:45PM May 20, 2015Observed: 4.72 ft at 12:00AM May 21, 2015Observed: 4.73 ft at 12:15AM May 21, 2015Observed: 4.73 ft at 12:30AM May 21, 2015Observed: 4.74 ft at 12:45AM May 21, 2015Observed: 4.73 ft at 1:00AM May 21, 2015Observed: 4.72 ft at 1:15AM May 21, 2015Observed: 4.73 ft at 1:30AM May 21, 2015Observed: 4.73 ft at 1:45AM May 21, 2015Observed: 4.71 ft at 2:00AM May 21, 2015Observed: 4.71 ft at 2:15AM May 21, 2015Observed: 4.71 ft at 2:30AM May 21, 2015Observed: 4.71 ft at 2:45AM May 21, 2015Observed: 4.71 ft at 3:00AM May 21, 2015Observed: 4.71 ft at 3:15AM May 21, 2015Observed: 4.71 ft at 3:30AM May 21, 2015Observed: 4.7 ft at 3:45AM May 21, 2015Observed: 4.71 ft at 4:00AM May 21, 2015Observed: 4.69 ft at 4:15AM May 21, 2015Observed: 4.7 ft at 4:30AM May 21, 2015Observed: 4.69 ft at 4:45AM May 21, 2015Observed: 4.69 ft at 5:00AM May 21, 2015Observed: 4.68 ft at 5:15AM May 21, 2015Observed: 4.68 ft at 5:30AM May 21, 2015Observed: 4.68 ft at 5:45AM May 21, 2015Observed: 4.68 ft at 6:00AM May 21, 2015Observed: 4.69 ft at 6:15AM May 21, 2015Observed: 4.68 ft at 6:30AM May 21, 2015Observed: 4.66 ft at 6:45AM May 21, 2015Observed: 4.68 ft at 7:00AM May 21, 2015Observed: 4.67 ft at 7:15AM May 21, 2015Observed: 4.66 ft at 7:30AM May 21, 2015Observed: 4.67 ft at 7:45AM May 21, 2015Observed: 4.66 ft at 8:00AM May 21, 2015Observed: 4.67 ft at 8:15AM May 21, 2015Observed: 4.66 ft at 8:30AM May 21, 2015Observed: 4.67 ft at 8:45AM May 21, 2015Observed: 4.66 ft at 9:00AM May 21, 2015Observed: 4.67 ft at 9:15AM May 21, 2015Observed: 4.66 ft at 9:30AM May 21, 2015Observed: 4.66 ft at 9:45AM May 21, 2015Observed: 4.64 ft at 10:00AM May 21, 2015Observed: 4.66 ft at 10:15AM May 21, 2015Observed: 4.65 ft at 10:30AM May 21, 2015Observed: 4.65 ft at 10:45AM May 21, 2015Observed: 4.65 ft at 11:00AM May 21, 2015Observed: 4.65 ft at 11:15AM May 21, 2015Observed: 4.65 ft at 11:30AM May 21, 2015Observed: 4.65 ft at 11:45AM May 21, 2015Observed: 4.65 ft at 12:00PM May 21, 2015Observed: 4.65 ft at 12:15PM May 21, 2015Observed: 4.64 ft at 12:30PM May 21, 2015Observed: 4.64 ft at 12:45PM May 21, 2015Observed: 4.65 ft at 1:00PM May 21, 2015Observed: 4.64 ft at 1:15PM May 21, 2015Observed: 4.63 ft at 1:30PM May 21, 2015Observed: 4.63 ft at 1:45PM May 21, 2015Observed: 4.63 ft at 2:00PM May 21, 2015Observed: 4.63 ft at 2:15PM May 21, 2015Observed: 4.62 ft at 2:30PM May 21, 2015Observed: 4.62 ft at 2:45PM May 21, 2015Observed: 4.62 ft at 3:00PM May 21, 2015Observed: 4.61 ft at 3:15PM May 21, 2015Observed: 4.6 ft at 3:30PM May 21, 2015Observed: 4.62 ft at 3:45PM May 21, 2015Observed: 4.61 ft at 4:00PM May 21, 2015Observed: 4.61 ft at 4:15PM May 21, 2015Observed: 4.61 ft at 4:30PM May 21, 2015Observed: 4.61 ft at 4:45PM May 21, 2015Observed: 4.61 ft at 5:00PM May 21, 2015Observed: 4.6 ft at 5:15PM May 21, 2015Observed: 4.6 ft at 5:30PM May 21, 2015Observed: 4.61 ft at 5:45PM May 21, 2015Observed: 4.6 ft at 6:00PM May 21, 2015Observed: 4.6 ft at 6:15PM May 21, 2015Observed: 4.59 ft at 6:30PM May 21, 2015Observed: 4.59 ft at 6:45PM May 21, 2015Observed: 4.59 ft at 7:00PM May 21, 2015Observed: 4.59 ft at 7:15PM May 21, 2015Observed: 4.58 ft at 7:30PM May 21, 2015Observed: 4.59 ft at 7:45PM May 21, 2015Observed: 4.59 ft at 8:00PM May 21, 2015Observed: 4.57 ft at 8:15PM May 21, 2015Observed: 4.58 ft at 8:30PM May 21, 2015Observed: 4.57 ft at 8:45PM May 21, 2015Observed: 4.57 ft at 9:00PM May 21, 2015Observed: 4.56 ft at 9:15PM May 21, 2015Observed: 4.56 ft at 9:30PM May 21, 2015Observed: 4.57 ft at 9:45PM May 21, 2015Observed: 4.55 ft at 10:00PM May 21, 2015Observed: 4.56 ft at 10:15PM May 21, 2015Observed: 4.55 ft at 10:30PM May 21, 2015Observed: 4.56 ft at 10:45PM May 21, 2015Observed: 4.56 ft at 11:00PM May 21, 2015Observed: 4.55 ft at 11:15PM May 21, 2015Observed: 4.55 ft at 11:30PM May 21, 2015Observed: 4.54 ft at 11:45PM May 21, 2015Observed: 4.55 ft at 12:00AM May 22, 2015Observed: 4.55 ft at 12:15AM May 22, 2015Observed: 4.54 ft at 12:30AM May 22, 2015Observed: 4.54 ft at 12:45AM May 22, 2015Observed: 4.53 ft at 1:00AM May 22, 2015Observed: 4.55 ft at 1:15AM May 22, 2015Observed: 4.54 ft at 1:30AM May 22, 2015Observed: 4.53 ft at 1:45AM May 22, 2015Observed: 4.53 ft at 2:00AM May 22, 2015Observed: 4.54 ft at 2:15AM May 22, 2015Observed: 4.54 ft at 2:30AM May 22, 2015Observed: 4.54 ft at 2:45AM May 22, 2015Observed: 4.52 ft at 3:00AM May 22, 2015Observed: 4.52 ft at 3:15AM May 22, 2015Observed: 4.52 ft at 3:30AM May 22, 2015Observed: 4.52 ft at 3:45AM May 22, 2015Observed: 4.53 ft at 4:00AM May 22, 2015Observed: 4.53 ft at 4:15AM May 22, 2015Observed: 4.52 ft at 4:30AM May 22, 2015Observed: 4.53 ft at 4:45AM May 22, 2015Observed: 4.51 ft at 5:00AM May 22, 2015Observed: 4.52 ft at 5:15AM May 22, 2015Observed: 4.51 ft at 5:30AM May 22, 2015Observed: 4.51 ft at 5:45AM May 22, 2015Observed: 4.52 ft at 6:00AM May 22, 2015Observed: 4.51 ft at 6:15AM May 22, 2015Observed: 4.51 ft at 6:30AM May 22, 2015Observed: 4.5 ft at 6:45AM May 22, 2015Observed: 4.5 ft at 7:00AM May 22, 2015Observed: 4.5 ft at 7:15AM May 22, 2015Observed: 4.49 ft at 7:30AM May 22, 2015Observed: 4.5 ft at 7:45AM May 22, 2015Observed: 4.51 ft at 8:00AM May 22, 2015Observed: 4.5 ft at 8:15AM May 22, 2015Observed: 4.49 ft at 8:30AM May 22, 2015Observed: 4.5 ft at 8:45AM May 22, 2015Observed: 4.49 ft at 9:00AM May 22, 2015Observed: 4.49 ft at 9:15AM May 22, 2015Observed: 4.49 ft at 9:30AM May 22, 2015Observed: 4.49 ft at 9:45AM May 22, 2015Observed: 4.48 ft at 10:00AM May 22, 2015Observed: 4.48 ft at 10:15AM May 22, 2015Observed: 4.49 ft at 10:30AM May 22, 2015Observed: 4.48 ft at 10:45AM May 22, 2015Observed: 4.48 ft at 11:00AM May 22, 2015Observed: 4.48 ft at 11:15AM May 22, 2015Observed: 4.46 ft at 11:30AM May 22, 2015Observed: 4.48 ft at 11:45AM May 22, 2015Observed: 4.47 ft at 12:00PM May 22, 2015Observed: 4.48 ft at 12:15PM May 22, 2015Observed: 4.47 ft at 12:30PM May 22, 2015Observed: 4.47 ft at 12:45PM May 22, 2015Observed: 4.46 ft at 1:00PM May 22, 2015Observed: 4.46 ft at 1:15PM May 22, 2015Observed: 4.46 ft at 1:30PM May 22, 2015Observed: 4.47 ft at 1:45PM May 22, 2015Observed: 4.45 ft at 2:00PM May 22, 2015Observed: 4.46 ft at 2:15PM May 22, 2015Observed: 4.46 ft at 2:30PM May 22, 2015Observed: 4.45 ft at 2:45PM May 22, 2015Observed: 4.45 ft at 3:00PM May 22, 2015Observed: 4.44 ft at 3:15PM May 22, 2015Observed: 4.44 ft at 3:30PM May 22, 2015Observed: 4.45 ft at 3:45PM May 22, 2015Observed: 4.44 ft at 4:00PM May 22, 2015Observed: 4.43 ft at 4:15PM May 22, 2015Observed: 4.44 ft at 4:30PM May 22, 2015Observed: 4.43 ft at 4:45PM May 22, 2015Observed: 4.43 ft at 5:00PM May 22, 2015Observed: 4.43 ft at 5:15PM May 22, 2015Observed: 4.42 ft at 5:30PM May 22, 2015Observed: 4.43 ft at 5:45PM May 22, 2015Observed: 4.43 ft at 6:00PM May 22, 2015Observed: 4.43 ft at 6:15PM May 22, 2015Observed: 4.43 ft at 6:30PM May 22, 2015Observed: 4.41 ft at 6:45PM May 22, 2015Observed: 4.43 ft at 7:00PM May 22, 2015Observed: 4.42 ft at 7:15PM May 22, 2015Observed: 4.43 ft at 7:30PM May 22, 2015Observed: 4.42 ft at 7:45PM May 22, 2015Observed: 4.43 ft at 8:00PM May 22, 2015Observed: 4.41 ft at 8:15PM May 22, 2015Observed: 4.41 ft at 8:30PM May 22, 2015Observed: 4.41 ft at 8:45PM May 22, 2015Observed: 4.41 ft at 9:00PM May 22, 2015Observed: 4.41 ft at 9:15PM May 22, 2015Observed: 4.41 ft at 9:30PM May 22, 2015Observed: 4.41 ft at 9:45PM May 22, 2015Observed: 4.4 ft at 10:00PM May 22, 2015Observed: 4.41 ft at 10:15PM May 22, 2015Observed: 4.41 ft at 10:30PM May 22, 2015Observed: 4.4 ft at 10:45PM May 22, 2015Observed: 4.4 ft at 11:00PM May 22, 2015Observed: 4.4 ft at 11:15PM May 22, 2015Observed: 4.39 ft at 11:30PM May 22, 2015Observed: 4.4 ft at 11:45PM May 22, 2015Observed: 4.39 ft at 12:00AM May 23, 2015Observed: 4.39 ft at 12:15AM May 23, 2015Observed: 4.39 ft at 12:30AM May 23, 2015Observed: 4.38 ft at 12:45AM May 23, 2015Observed: 4.39 ft at 1:00AM May 23, 2015Observed: 4.38 ft at 1:15AM May 23, 2015Observed: 4.39 ft at 1:30AM May 23, 2015Observed: 4.37 ft at 1:45AM May 23, 2015Observed: 4.38 ft at 2:00AM May 23, 2015Observed: 4.38 ft at 2:15AM May 23, 2015Observed: 4.38 ft at 2:30AM May 23, 2015Observed: 4.38 ft at 2:45AM May 23, 2015Observed: 4.38 ft at 3:00AM May 23, 2015Observed: 4.37 ft at 3:15AM May 23, 2015Observed: 4.37 ft at 3:30AM May 23, 2015Observed: 4.38 ft at 3:45AM May 23, 2015Observed: 4.38 ft at 4:00AM May 23, 2015Observed: 4.38 ft at 4:15AM May 23, 2015Observed: 4.37 ft at 4:30AM May 23, 2015Observed: 4.37 ft at 4:45AM May 23, 2015Observed: 4.37 ft at 5:00AM May 23, 2015Observed: 4.37 ft at 5:15AM May 23, 2015Observed: 4.36 ft at 5:30AM May 23, 2015Observed: 4.36 ft at 5:45AM May 23, 2015Observed: 4.36 ft at 6:00AM May 23, 2015Observed: 4.35 ft at 6:15AM May 23, 2015Observed: 4.36 ft at 6:30AM May 23, 2015Observed: 4.35 ft at 6:45AM May 23, 2015Observed: 4.35 ft at 7:00AM May 23, 2015Observed: 4.35 ft at 7:15AM May 23, 2015Observed: 4.34 ft at 7:30AM May 23, 2015Observed: 4.34 ft at 7:45AM May 23, 2015Observed: 4.35 ft at 8:00AM May 23, 2015Observed: 4.35 ft at 8:15AM May 23, 2015Observed: 4.35 ft at 8:30AM May 23, 2015Observed: 4.34 ft at 8:45AM May 23, 2015Observed: 4.34 ft at 9:00AM May 23, 2015Observed: 4.35 ft at 9:15AM May 23, 2015Observed: 4.34 ft at 9:30AM May 23, 2015Observed: 4.34 ft at 9:45AM May 23, 2015Observed: 4.34 ft at 10:00AM May 23, 2015Observed: 4.34 ft at 10:15AM May 23, 2015Observed: 4.34 ft at 10:30AM May 23, 2015Observed: 4.34 ft at 10:45AM May 23, 2015Observed: 4.34 ft at 11:00AM May 23, 2015Observed: 4.33 ft at 11:15AM May 23, 2015Observed: 4.33 ft at 11:30AM May 23, 2015Observed: 4.34 ft at 11:45AM May 23, 2015Observed: 4.34 ft at 12:00PM May 23, 2015Observed: 4.33 ft at 12:15PM May 23, 2015Observed: 4.33 ft at 12:30PM May 23, 2015Observed: 4.33 ft at 12:45PM May 23, 2015Observed: 4.33 ft at 1:00PM May 23, 2015Observed: 4.32 ft at 1:15PM May 23, 2015Observed: 4.32 ft at 1:30PM May 23, 2015Observed: 4.32 ft at 1:45PM May 23, 2015Observed: 4.32 ft at 2:00PM May 23, 2015Observed: 4.33 ft at 2:15PM May 23, 2015Observed: 4.32 ft at 2:30PM May 23, 2015Observed: 4.32 ft at 2:45PM May 23, 2015Observed: 4.33 ft at 3:00PM May 23, 2015Observed: 4.31 ft at 3:15PM May 23, 2015Observed: 4.32 ft at 3:30PM May 23, 2015Observed: 4.32 ft at 3:45PM May 23, 2015Observed: 4.31 ft at 4:00PM May 23, 2015Observed: 4.32 ft at 4:15PM May 23, 2015Observed: 4.31 ft at 4:30PM May 23, 2015Observed: 4.31 ft at 4:45PM May 23, 2015Observed: 4.31 ft at 5:00PM May 23, 2015Observed: 4.31 ft at 5:15PM May 23, 2015Observed: 4.31 ft at 5:30PM May 23, 2015Observed: 4.31 ft at 5:45PM May 23, 2015Observed: 4.3 ft at 6:00PM May 23, 2015Observed: 4.3 ft at 6:15PM May 23, 2015Observed: 4.3 ft at 6:30PM May 23, 2015Observed: 4.3 ft at 6:45PM May 23, 2015Observed: 4.3 ft at 7:00PM May 23, 2015Observed: 4.3 ft at 7:15PM May 23, 2015Observed: 4.3 ft at 7:30PM May 23, 2015Observed: 4.3 ft at 7:45PM May 23, 2015Observed: 4.3 ft at 8:00PM May 23, 2015Observed: 4.3 ft at 8:15PM May 23, 2015Observed: 4.3 ft at 8:30PM May 23, 2015Observed: 4.29 ft at 8:45PM May 23, 2015Observed: 4.29 ft at 9:00PM May 23, 2015Observed: 4.29 ft at 9:15PM May 23, 2015Observed: 4.3 ft at 9:30PM May 23, 2015Observed: 4.3 ft at 9:45PM May 23, 2015Observed: 4.3 ft at 10:00PM May 23, 2015Observed: 4.29 ft at 10:15PM May 23, 2015Observed: 4.29 ft at 10:30PM May 23, 2015Observed: 4.29 ft at 10:45PM May 23, 2015Observed: 4.29 ft at 11:00PM May 23, 2015Observed: 4.28 ft at 11:15PM May 23, 2015Observed: 4.28 ft at 11:30PM May 23, 2015Observed: 4.29 ft at 11:45PM May 23, 2015Observed: 4.29 ft at 12:00AM May 24, 2015Observed: 4.27 ft at 12:15AM May 24, 2015Observed: 4.28 ft at 12:30AM May 24, 2015Observed: 4.28 ft at 12:45AM May 24, 2015Observed: 4.28 ft at 1:00AM May 24, 2015Observed: 4.28 ft at 1:15AM May 24, 2015Observed: 4.27 ft at 1:30AM May 24, 2015Observed: 4.28 ft at 1:45AM May 24, 2015Observed: 4.27 ft at 2:00AM May 24, 2015Observed: 4.27 ft at 2:15AM May 24, 2015Observed: 4.27 ft at 2:30AM May 24, 2015Observed: 4.27 ft at 2:45AM May 24, 2015Observed: 4.27 ft at 3:00AM May 24, 2015Observed: 4.27 ft at 3:15AM May 24, 2015Observed: 4.26 ft at 3:30AM May 24, 2015Observed: 4.27 ft at 3:45AM May 24, 2015Observed: 4.27 ft at 4:00AM May 24, 2015Observed: 4.27 ft at 4:15AM May 24, 2015Observed: 4.27 ft at 4:30AM May 24, 2015Observed: 4.27 ft at 4:45AM May 24, 2015Observed: 4.27 ft at 5:00AM May 24, 2015Observed: 4.26 ft at 5:15AM May 24, 2015Observed: 4.27 ft at 5:30AM May 24, 2015Observed: 4.27 ft at 5:45AM May 24, 2015Observed: 4.26 ft at 6:00AM May 24, 2015Observed: 4.27 ft at 6:15AM May 24, 2015Observed: 4.27 ft at 6:30AM May 24, 2015Observed: 4.26 ft at 6:45AM May 24, 2015Observed: 4.27 ft at 7:00AM May 24, 2015Observed: 4.26 ft at 7:15AM May 24, 2015Observed: 4.27 ft at 7:30AM May 24, 2015Observed: 4.26 ft at 7:45AM May 24, 2015Observed: 4.26 ft at 8:00AM May 24, 2015Observed: 4.27 ft at 8:15AM May 24, 2015Observed: 4.26 ft at 8:30AM May 24, 2015Observed: 4.25 ft at 8:45AM May 24, 2015Observed: 4.26 ft at 9:00AM May 24, 2015Observed: 4.27 ft at 9:15AM May 24, 2015Observed: 4.27 ft at 9:30AM May 24, 2015Observed: 4.26 ft at 9:45AM May 24, 2015Observed: 4.25 ft at 10:00AM May 24, 2015Observed: 4.26 ft at 10:15AM May 24, 2015Observed: 4.26 ft at 10:30AM May 24, 2015Observed: 4.27 ft at 10:45AM May 24, 2015Observed: 4.26 ft at 11:00AM May 24, 2015Observed: 4.25 ft at 11:15AM May 24, 2015Observed: 4.27 ft at 11:30AM May 24, 2015Observed: 4.26 ft at 11:45AM May 24, 2015Observed: 4.27 ft at 12:00PM May 24, 2015Observed: 4.26 ft at 12:15PM May 24, 2015Observed: 4.27 ft at 12:30PM May 24, 2015Observed: 4.26 ft at 12:45PM May 24, 2015Observed: 4.28 ft at 1:00PM May 24, 2015Observed: 4.27 ft at 1:15PM May 24, 2015Observed: 4.28 ft at 1:30PM May 24, 2015Observed: 4.27 ft at 1:45PM May 24, 2015Observed: 4.27 ft at 2:00PM May 24, 2015Observed: 4.27 ft at 2:15PM May 24, 2015Observed: 4.27 ft at 2:30PM May 24, 2015Observed: 4.28 ft at 2:45PM May 24, 2015Observed: 4.27 ft at 3:00PM May 24, 2015Observed: 4.27 ft at 3:15PM May 24, 2015Observed: 4.27 ft at 3:30PM May 24, 2015Observed: 4.27 ft at 3:45PM May 24, 2015Observed: 4.27 ft at 4:00PM May 24, 2015Observed: 4.28 ft at 4:15PM May 24, 2015Observed: 4.28 ft at 4:30PM May 24, 2015Observed: 4.28 ft at 4:45PM May 24, 2015Observed: 4.28 ft at 5:00PM May 24, 2015Observed: 4.27 ft at 5:15PM May 24, 2015Observed: 4.28 ft at 5:30PM May 24, 2015Observed: 4.27 ft at 5:45PM May 24, 2015Observed: 4.28 ft at 6:00PM May 24, 2015Observed: 4.27 ft at 6:15PM May 24, 2015Observed: 4.27 ft at 6:30PM May 24, 2015Observed: 4.27 ft at 6:45PM May 24, 2015Observed: 4.27 ft at 7:00PM May 24, 2015Observed: 4.28 ft at 7:15PM May 24, 2015Observed: 4.28 ft at 7:30PM May 24, 2015Observed: 4.27 ft at 7:45PM May 24, 2015Observed: 4.27 ft at 8:00PM May 24, 2015Observed: 4.27 ft at 8:15PM May 24, 2015Observed: 4.28 ft at 8:30PM May 24, 2015Observed: 4.27 ft at 8:45PM May 24, 2015Observed: 4.28 ft at 9:00PM May 24, 2015Observed: 4.28 ft at 9:15PM May 24, 2015Observed: 4.27 ft at 9:30PM May 24, 2015Observed: 4.28 ft at 9:45PM May 24, 2015Observed: 4.28 ft at 10:00PM May 24, 2015Observed: 4.27 ft at 10:15PM May 24, 2015Observed: 4.27 ft at 10:30PM May 24, 2015Observed: 4.28 ft at 10:45PM May 24, 2015Observed: 4.28 ft at 11:00PM May 24, 2015Observed: 4.28 ft at 11:15PM May 24, 2015Observed: 4.27 ft at 11:30PM May 24, 2015Observed: 4.28 ft at 11:45PM May 24, 2015Observed: 4.28 ft at 12:00AM May 25, 2015Observed: 4.28 ft at 12:15AM May 25, 2015Observed: 4.28 ft at 12:30AM May 25, 2015Observed: 4.28 ft at 12:45AM May 25, 2015Observed: 4.28 ft at 1:00AM May 25, 2015Observed: 4.28 ft at 1:15AM May 25, 2015Observed: 4.29 ft at 1:30AM May 25, 2015Observed: 4.29 ft at 1:45AM May 25, 2015Observed: 4.28 ft at 2:00AM May 25, 2015Observed: 4.28 ft at 2:15AM May 25, 2015Observed: 4.28 ft at 2:30AM May 25, 2015USGS--Water Resources of the United StatesMCWI4(plotting HGIRV) Graph Created (4:17AM May 25, 2015)ObservedLatest observed value: 4.28 ft at 2:30 AM CDT 25-May-2015. 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): 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) 8.61 ft on 07/14/2013
(2) 8.07 ft on 06/25/2013
(3) 9.11 ft on 06/13/2013
(4) 7.18 ft on 06/09/2013
(5) 6.48 ft on 06/05/2013
(6) 8.90 ft on 05/28/2013
(7) 9.44 ft on 05/20/2013
(8) 6.94 ft on 05/06/2013
(9) 6.87 ft on 03/29/2013
(10) 8.32 ft on 03/10/2013
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
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Page last modified: 19-Nov-2014 2:09 AM
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