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

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Flood Stage: 10 Feet
Latest Stage: 3.73
Current Warnings/Statements/Advisories:None currently.
at Mason City
Stage (ft)Flow (cfs)Highest Observation: 4.6 ft at 9:30PM Jul 30, 2015Observed: 4.59 ft at 9:45PM Jul 30, 2015Observed: 4.55 ft at 10:00PM Jul 30, 2015Observed: 4.58 ft at 10:15PM Jul 30, 2015Observed: 4.58 ft at 10:30PM Jul 30, 2015Observed: 4.58 ft at 10:45PM Jul 30, 2015Observed: 4.58 ft at 11:00PM Jul 30, 2015Observed: 4.56 ft at 11:15PM Jul 30, 2015Observed: 4.56 ft at 11:30PM Jul 30, 2015Observed: 4.55 ft at 11:45PM Jul 30, 2015Observed: 4.54 ft at 12:00AM Jul 31, 2015Observed: 4.56 ft at 12:15AM Jul 31, 2015Observed: 4.55 ft at 12:30AM Jul 31, 2015Observed: 4.54 ft at 12:45AM Jul 31, 2015Observed: 4.54 ft at 1:00AM Jul 31, 2015Observed: 4.54 ft at 1:15AM Jul 31, 2015Observed: 4.54 ft at 1:30AM Jul 31, 2015Observed: 4.52 ft at 1:45AM Jul 31, 2015Observed: 4.49 ft at 2:00AM Jul 31, 2015Observed: 4.51 ft at 2:15AM Jul 31, 2015Observed: 4.52 ft at 2:30AM Jul 31, 2015Observed: 4.51 ft at 2:45AM Jul 31, 2015Observed: 4.51 ft at 3:00AM Jul 31, 2015Observed: 4.49 ft at 3:15AM Jul 31, 2015Observed: 4.49 ft at 3:30AM Jul 31, 2015Observed: 4.5 ft at 3:45AM Jul 31, 2015Observed: 4.5 ft at 4:00AM Jul 31, 2015Observed: 4.49 ft at 4:15AM Jul 31, 2015Observed: 4.48 ft at 4:30AM Jul 31, 2015Observed: 4.48 ft at 4:45AM Jul 31, 2015Observed: 4.47 ft at 5:00AM Jul 31, 2015Observed: 4.47 ft at 5:15AM Jul 31, 2015Observed: 4.45 ft at 5:30AM Jul 31, 2015Observed: 4.46 ft at 5:45AM Jul 31, 2015Observed: 4.47 ft at 6:00AM Jul 31, 2015Observed: 4.47 ft at 6:15AM Jul 31, 2015Observed: 4.46 ft at 6:30AM Jul 31, 2015Observed: 4.44 ft at 6:45AM Jul 31, 2015Observed: 4.44 ft at 7:00AM Jul 31, 2015Observed: 4.45 ft at 7:15AM Jul 31, 2015Observed: 4.45 ft at 7:30AM Jul 31, 2015Observed: 4.43 ft at 7:45AM Jul 31, 2015Observed: 4.43 ft at 8:00AM Jul 31, 2015Observed: 4.43 ft at 8:15AM Jul 31, 2015Observed: 4.41 ft at 8:30AM Jul 31, 2015Observed: 4.43 ft at 8:45AM Jul 31, 2015Observed: 4.42 ft at 9:00AM Jul 31, 2015Observed: 4.42 ft at 9:15AM Jul 31, 2015Observed: 4.41 ft at 9:30AM Jul 31, 2015Observed: 4.41 ft at 9:45AM Jul 31, 2015Observed: 4.4 ft at 10:00AM Jul 31, 2015Observed: 4.4 ft at 10:15AM Jul 31, 2015Observed: 4.39 ft at 10:30AM Jul 31, 2015Observed: 4.4 ft at 10:45AM Jul 31, 2015Observed: 4.29 ft at 11:00AM Jul 31, 2015Observed: 4.39 ft at 11:15AM Jul 31, 2015Observed: 4.39 ft at 11:30AM Jul 31, 2015Observed: 4.39 ft at 11:45AM Jul 31, 2015Observed: 4.37 ft at 12:00PM Jul 31, 2015Observed: 4.38 ft at 12:15PM Jul 31, 2015Observed: 4.38 ft at 12:30PM Jul 31, 2015Observed: 4.37 ft at 12:45PM Jul 31, 2015Observed: 4.38 ft at 1:00PM Jul 31, 2015Observed: 4.36 ft at 1:15PM Jul 31, 2015Observed: 4.37 ft at 1:30PM Jul 31, 2015Observed: 4.35 ft at 1:45PM Jul 31, 2015Observed: 4.35 ft at 2:00PM Jul 31, 2015Observed: 4.36 ft at 2:15PM Jul 31, 2015Observed: 4.36 ft at 2:30PM Jul 31, 2015Observed: 4.36 ft at 2:45PM Jul 31, 2015Observed: 4.35 ft at 3:00PM Jul 31, 2015Observed: 4.34 ft at 3:15PM Jul 31, 2015Observed: 4.34 ft at 3:30PM Jul 31, 2015Observed: 4.34 ft at 3:45PM Jul 31, 2015Observed: 4.34 ft at 4:00PM Jul 31, 2015Observed: 4.34 ft at 4:15PM Jul 31, 2015Observed: 4.32 ft at 4:30PM Jul 31, 2015Observed: 4.34 ft at 4:45PM Jul 31, 2015Observed: 4.33 ft at 5:00PM Jul 31, 2015Observed: 4.33 ft at 5:15PM Jul 31, 2015Observed: 4.31 ft at 5:30PM Jul 31, 2015Observed: 4.32 ft at 5:45PM Jul 31, 2015Observed: 4.32 ft at 6:00PM Jul 31, 2015Observed: 4.32 ft at 6:15PM Jul 31, 2015Observed: 4.31 ft at 6:30PM Jul 31, 2015Observed: 4.31 ft at 6:45PM Jul 31, 2015Observed: 4.3 ft at 7:00PM Jul 31, 2015Observed: 4.29 ft at 7:15PM Jul 31, 2015Observed: 4.29 ft at 7:30PM Jul 31, 2015Observed: 4.29 ft at 7:45PM Jul 31, 2015Observed: 4.29 ft at 8:00PM Jul 31, 2015Observed: 4.29 ft at 8:15PM Jul 31, 2015Observed: 4.29 ft at 8:30PM Jul 31, 2015Observed: 4.28 ft at 8:45PM Jul 31, 2015Observed: 4.29 ft at 9:00PM Jul 31, 2015Observed: 4.27 ft at 9:15PM Jul 31, 2015Observed: 4.27 ft at 9:30PM Jul 31, 2015Observed: 4.27 ft at 9:45PM Jul 31, 2015Observed: 4.27 ft at 10:00PM Jul 31, 2015Observed: 4.27 ft at 10:15PM Jul 31, 2015Observed: 4.27 ft at 10:30PM Jul 31, 2015Observed: 4.25 ft at 10:45PM Jul 31, 2015Observed: 4.26 ft at 11:00PM Jul 31, 2015Observed: 4.25 ft at 11:15PM Jul 31, 2015Observed: 4.25 ft at 11:30PM Jul 31, 2015Observed: 4.25 ft at 11:45PM Jul 31, 2015Observed: 4.25 ft at 12:00AM Aug 01, 2015Observed: 4.25 ft at 12:15AM Aug 01, 2015Observed: 4.25 ft at 12:30AM Aug 01, 2015Observed: 4.24 ft at 12:45AM Aug 01, 2015Observed: 4.25 ft at 1:00AM Aug 01, 2015Observed: 4.24 ft at 1:15AM Aug 01, 2015Observed: 4.24 ft at 1:30AM Aug 01, 2015Observed: 4.24 ft at 1:45AM Aug 01, 2015Observed: 4.23 ft at 2:00AM Aug 01, 2015Observed: 4.22 ft at 2:15AM Aug 01, 2015Observed: 4.22 ft at 2:30AM Aug 01, 2015Observed: 4.22 ft at 2:45AM Aug 01, 2015Observed: 4.22 ft at 3:00AM Aug 01, 2015Observed: 4.2 ft at 3:15AM Aug 01, 2015Observed: 4.22 ft at 3:30AM Aug 01, 2015Observed: 4.21 ft at 3:45AM Aug 01, 2015Observed: 4.21 ft at 4:00AM Aug 01, 2015Observed: 4.21 ft at 4:15AM Aug 01, 2015Observed: 4.21 ft at 4:30AM Aug 01, 2015Observed: 4.21 ft at 4:45AM Aug 01, 2015Observed: 4.2 ft at 5:00AM Aug 01, 2015Observed: 4.21 ft at 5:15AM Aug 01, 2015Observed: 4.2 ft at 5:30AM Aug 01, 2015Observed: 4.2 ft at 5:45AM Aug 01, 2015Observed: 4.2 ft at 6:00AM Aug 01, 2015Observed: 4.2 ft at 6:15AM Aug 01, 2015Observed: 4.19 ft at 6:30AM Aug 01, 2015Observed: 4.19 ft at 6:45AM Aug 01, 2015Observed: 4.18 ft at 7:00AM Aug 01, 2015Observed: 4.18 ft at 7:15AM Aug 01, 2015Observed: 4.19 ft at 7:30AM Aug 01, 2015Observed: 4.18 ft at 7:45AM Aug 01, 2015Observed: 4.17 ft at 8:00AM Aug 01, 2015Observed: 4.18 ft at 8:15AM Aug 01, 2015Observed: 4.18 ft at 8:30AM Aug 01, 2015Observed: 4.17 ft at 8:45AM Aug 01, 2015Observed: 4.16 ft at 9:00AM Aug 01, 2015Observed: 4.16 ft at 9:15AM Aug 01, 2015Observed: 4.16 ft at 9:30AM Aug 01, 2015Observed: 4.16 ft at 9:45AM Aug 01, 2015Observed: 4.15 ft at 10:00AM Aug 01, 2015Observed: 4.16 ft at 10:15AM Aug 01, 2015Observed: 4.16 ft at 10:30AM Aug 01, 2015Observed: 4.15 ft at 10:45AM Aug 01, 2015Observed: 4.16 ft at 11:00AM Aug 01, 2015Observed: 4.15 ft at 11:15AM Aug 01, 2015Observed: 4.15 ft at 11:30AM Aug 01, 2015Observed: 4.14 ft at 11:45AM Aug 01, 2015Observed: 4.14 ft at 12:00PM Aug 01, 2015Observed: 4.14 ft at 12:15PM Aug 01, 2015Observed: 4.14 ft at 12:30PM Aug 01, 2015Observed: 4.14 ft at 12:45PM Aug 01, 2015Observed: 4.13 ft at 1:00PM Aug 01, 2015Observed: 4.13 ft at 1:15PM Aug 01, 2015Observed: 4.14 ft at 1:30PM Aug 01, 2015Observed: 4.13 ft at 1:45PM Aug 01, 2015Observed: 4.12 ft at 2:00PM Aug 01, 2015Observed: 4.13 ft at 2:15PM Aug 01, 2015Observed: 4.12 ft at 2:30PM Aug 01, 2015Observed: 4.12 ft at 2:45PM Aug 01, 2015Observed: 4.12 ft at 3:00PM Aug 01, 2015Observed: 4.12 ft at 3:15PM Aug 01, 2015Observed: 4.12 ft at 3:30PM Aug 01, 2015Observed: 4.11 ft at 3:45PM Aug 01, 2015Observed: 4.11 ft at 4:00PM Aug 01, 2015Observed: 4.12 ft at 4:15PM Aug 01, 2015Observed: 4.1 ft at 4:30PM Aug 01, 2015Observed: 4.11 ft at 4:45PM Aug 01, 2015Observed: 4.1 ft at 5:00PM Aug 01, 2015Observed: 4.1 ft at 5:15PM Aug 01, 2015Observed: 4.1 ft at 5:30PM Aug 01, 2015Observed: 4.1 ft at 5:45PM Aug 01, 2015Observed: 4.1 ft at 6:00PM Aug 01, 2015Observed: 4.1 ft at 6:15PM Aug 01, 2015Observed: 4.1 ft at 6:30PM Aug 01, 2015Observed: 4.09 ft at 6:45PM Aug 01, 2015Observed: 4.1 ft at 7:00PM Aug 01, 2015Observed: 4.1 ft at 7:15PM Aug 01, 2015Observed: 4.09 ft at 7:30PM Aug 01, 2015Observed: 4.09 ft at 7:45PM Aug 01, 2015Observed: 4.09 ft at 8:00PM Aug 01, 2015Observed: 4.09 ft at 8:15PM Aug 01, 2015Observed: 4.09 ft at 8:30PM Aug 01, 2015Observed: 4.08 ft at 8:45PM Aug 01, 2015Observed: 4.08 ft at 9:00PM Aug 01, 2015Observed: 4.08 ft at 9:15PM Aug 01, 2015Observed: 4.07 ft at 9:30PM Aug 01, 2015Observed: 4.08 ft at 9:45PM Aug 01, 2015Observed: 4.07 ft at 10:00PM Aug 01, 2015Observed: 4.08 ft at 10:15PM Aug 01, 2015Observed: 4.07 ft at 10:30PM Aug 01, 2015Observed: 4.07 ft at 10:45PM Aug 01, 2015Observed: 4.07 ft at 11:00PM Aug 01, 2015Observed: 4.06 ft at 11:15PM Aug 01, 2015Observed: 4.06 ft at 11:30PM Aug 01, 2015Observed: 4.06 ft at 11:45PM Aug 01, 2015Observed: 4.06 ft at 12:00AM Aug 02, 2015Observed: 4.06 ft at 12:15AM Aug 02, 2015Observed: 4.06 ft at 12:30AM Aug 02, 2015Observed: 4.06 ft at 12:45AM Aug 02, 2015Observed: 4.05 ft at 1:00AM Aug 02, 2015Observed: 4.05 ft at 1:15AM Aug 02, 2015Observed: 4.05 ft at 1:30AM Aug 02, 2015Observed: 4.05 ft at 1:45AM Aug 02, 2015Observed: 4.05 ft at 2:00AM Aug 02, 2015Observed: 4.05 ft at 2:15AM Aug 02, 2015Observed: 4.04 ft at 2:30AM Aug 02, 2015Observed: 4.04 ft at 2:45AM Aug 02, 2015Observed: 4.04 ft at 3:00AM Aug 02, 2015Observed: 4.04 ft at 3:15AM Aug 02, 2015Observed: 4.04 ft at 3:30AM Aug 02, 2015Observed: 4.03 ft at 4:00AM Aug 02, 2015Observed: 4.03 ft at 4:15AM Aug 02, 2015Observed: 4.03 ft at 4:30AM Aug 02, 2015Observed: 4.03 ft at 4:45AM Aug 02, 2015Observed: 4.03 ft at 5:00AM Aug 02, 2015Observed: 4.02 ft at 5:15AM Aug 02, 2015Observed: 4.02 ft at 5:30AM Aug 02, 2015Observed: 4.02 ft at 5:45AM Aug 02, 2015Observed: 4.02 ft at 6:00AM Aug 02, 2015Observed: 4.02 ft at 6:15AM Aug 02, 2015Observed: 4.01 ft at 6:30AM Aug 02, 2015Observed: 4.02 ft at 6:45AM Aug 02, 2015Observed: 4.01 ft at 7:00AM Aug 02, 2015Observed: 4.02 ft at 7:15AM Aug 02, 2015Observed: 4 ft at 7:30AM Aug 02, 2015Observed: 4.01 ft at 7:45AM Aug 02, 2015Observed: 4.01 ft at 8:00AM Aug 02, 2015Observed: 4.01 ft at 8:15AM Aug 02, 2015Observed: 4.01 ft at 8:30AM Aug 02, 2015Observed: 4 ft at 8:45AM Aug 02, 2015Observed: 4.01 ft at 9:00AM Aug 02, 2015Observed: 4 ft at 9:15AM Aug 02, 2015Observed: 4 ft at 9:30AM Aug 02, 2015Observed: 4.01 ft at 9:45AM Aug 02, 2015Observed: 4 ft at 10:00AM Aug 02, 2015Observed: 4 ft at 10:15AM Aug 02, 2015Observed: 3.99 ft at 10:30AM Aug 02, 2015Observed: 4 ft at 10:45AM Aug 02, 2015Observed: 4 ft at 11:00AM Aug 02, 2015Observed: 3.99 ft at 11:15AM Aug 02, 2015Observed: 3.99 ft at 11:30AM Aug 02, 2015Observed: 3.98 ft at 11:45AM Aug 02, 2015Observed: 3.99 ft at 12:00PM Aug 02, 2015Observed: 3.99 ft at 12:15PM Aug 02, 2015Observed: 3.99 ft at 12:30PM Aug 02, 2015Observed: 3.98 ft at 12:45PM Aug 02, 2015Observed: 3.98 ft at 1:00PM Aug 02, 2015Observed: 3.98 ft at 1:15PM Aug 02, 2015Observed: 3.98 ft at 1:30PM Aug 02, 2015Observed: 3.98 ft at 1:45PM Aug 02, 2015Observed: 3.98 ft at 2:00PM Aug 02, 2015Observed: 3.97 ft at 2:15PM Aug 02, 2015Observed: 3.98 ft at 2:30PM Aug 02, 2015Observed: 3.98 ft at 2:45PM Aug 02, 2015Observed: 3.97 ft at 3:00PM Aug 02, 2015Observed: 3.97 ft at 3:15PM Aug 02, 2015Observed: 3.97 ft at 3:30PM Aug 02, 2015Observed: 3.97 ft at 3:45PM Aug 02, 2015Observed: 3.97 ft at 4:00PM Aug 02, 2015Observed: 3.97 ft at 4:15PM Aug 02, 2015Observed: 3.97 ft at 4:30PM Aug 02, 2015Observed: 3.97 ft at 4:45PM Aug 02, 2015Observed: 3.97 ft at 5:00PM Aug 02, 2015Observed: 3.96 ft at 5:15PM Aug 02, 2015Observed: 3.96 ft at 5:30PM Aug 02, 2015Observed: 3.96 ft at 5:45PM Aug 02, 2015Observed: 3.96 ft at 6:00PM Aug 02, 2015Observed: 3.96 ft at 6:15PM Aug 02, 2015Observed: 3.96 ft at 6:30PM Aug 02, 2015Observed: 3.96 ft at 6:45PM Aug 02, 2015Observed: 3.96 ft at 7:00PM Aug 02, 2015Observed: 3.95 ft at 7:15PM Aug 02, 2015Observed: 3.95 ft at 7:30PM Aug 02, 2015Observed: 3.95 ft at 7:45PM Aug 02, 2015Observed: 3.94 ft at 8:00PM Aug 02, 2015Observed: 3.95 ft at 8:15PM Aug 02, 2015Observed: 3.95 ft at 8:30PM Aug 02, 2015Observed: 3.95 ft at 8:45PM Aug 02, 2015Observed: 3.94 ft at 9:00PM Aug 02, 2015Observed: 3.95 ft at 9:15PM Aug 02, 2015Observed: 3.94 ft at 9:30PM Aug 02, 2015Observed: 3.94 ft at 9:45PM Aug 02, 2015Observed: 3.94 ft at 10:00PM Aug 02, 2015Observed: 3.94 ft at 10:15PM Aug 02, 2015Observed: 3.93 ft at 10:30PM Aug 02, 2015Observed: 3.93 ft at 10:45PM Aug 02, 2015Observed: 3.93 ft at 11:00PM Aug 02, 2015Observed: 3.93 ft at 11:15PM Aug 02, 2015Observed: 3.93 ft at 11:30PM Aug 02, 2015Observed: 3.93 ft at 11:45PM Aug 02, 2015Observed: 3.93 ft at 12:00AM Aug 03, 2015Observed: 3.93 ft at 12:15AM Aug 03, 2015Observed: 3.93 ft at 12:30AM Aug 03, 2015Observed: 3.92 ft at 12:45AM Aug 03, 2015Observed: 3.91 ft at 1:00AM Aug 03, 2015Observed: 3.92 ft at 1:15AM Aug 03, 2015Observed: 3.92 ft at 1:30AM Aug 03, 2015Observed: 3.92 ft at 1:45AM Aug 03, 2015Observed: 3.91 ft at 2:00AM Aug 03, 2015Observed: 3.92 ft at 2:15AM Aug 03, 2015Observed: 3.91 ft at 2:30AM Aug 03, 2015Observed: 3.91 ft at 2:45AM Aug 03, 2015Observed: 3.91 ft at 3:00AM Aug 03, 2015Observed: 3.91 ft at 3:15AM Aug 03, 2015Observed: 3.91 ft at 3:30AM Aug 03, 2015Observed: 3.91 ft at 3:45AM Aug 03, 2015Observed: 3.9 ft at 4:00AM Aug 03, 2015Observed: 3.9 ft at 4:15AM Aug 03, 2015Observed: 3.9 ft at 4:30AM Aug 03, 2015Observed: 3.9 ft at 4:45AM Aug 03, 2015Observed: 3.89 ft at 5:00AM Aug 03, 2015Observed: 3.9 ft at 5:15AM Aug 03, 2015Observed: 3.89 ft at 5:30AM Aug 03, 2015Observed: 3.89 ft at 5:45AM Aug 03, 2015Observed: 3.89 ft at 6:00AM Aug 03, 2015Observed: 3.89 ft at 6:15AM Aug 03, 2015Observed: 3.89 ft at 6:30AM Aug 03, 2015Observed: 3.89 ft at 6:45AM Aug 03, 2015Observed: 3.89 ft at 7:00AM Aug 03, 2015Observed: 3.89 ft at 7:15AM Aug 03, 2015Observed: 3.88 ft at 7:30AM Aug 03, 2015Observed: 3.89 ft at 7:45AM Aug 03, 2015Observed: 3.88 ft at 8:00AM Aug 03, 2015Observed: 3.88 ft at 8:15AM Aug 03, 2015Observed: 3.88 ft at 8:30AM Aug 03, 2015Observed: 3.88 ft at 8:45AM Aug 03, 2015Observed: 3.87 ft at 9:00AM Aug 03, 2015Observed: 3.88 ft at 9:15AM Aug 03, 2015Observed: 3.87 ft at 9:30AM Aug 03, 2015Observed: 3.87 ft at 9:45AM Aug 03, 2015Observed: 3.87 ft at 10:00AM Aug 03, 2015Observed: 3.87 ft at 10:15AM Aug 03, 2015Observed: 3.87 ft at 10:30AM Aug 03, 2015Observed: 3.87 ft at 10:45AM Aug 03, 2015Observed: 3.86 ft at 11:00AM Aug 03, 2015Observed: 3.87 ft at 11:15AM Aug 03, 2015Observed: 3.87 ft at 11:30AM Aug 03, 2015Observed: 3.86 ft at 11:45AM Aug 03, 2015Observed: 3.86 ft at 12:00PM Aug 03, 2015Observed: 3.86 ft at 12:15PM Aug 03, 2015Observed: 3.86 ft at 12:30PM Aug 03, 2015Observed: 3.86 ft at 12:45PM Aug 03, 2015Observed: 3.86 ft at 1:00PM Aug 03, 2015Observed: 3.86 ft at 1:15PM Aug 03, 2015Observed: 3.86 ft at 1:30PM Aug 03, 2015Observed: 3.86 ft at 1:45PM Aug 03, 2015Observed: 3.85 ft at 2:00PM Aug 03, 2015Observed: 3.85 ft at 2:15PM Aug 03, 2015Observed: 3.85 ft at 2:30PM Aug 03, 2015Observed: 3.84 ft at 2:45PM Aug 03, 2015Observed: 3.85 ft at 3:00PM Aug 03, 2015Observed: 3.85 ft at 3:15PM Aug 03, 2015Observed: 3.84 ft at 3:30PM Aug 03, 2015Observed: 3.84 ft at 3:45PM Aug 03, 2015Observed: 3.84 ft at 4:00PM Aug 03, 2015Observed: 3.85 ft at 4:15PM Aug 03, 2015Observed: 3.84 ft at 4:30PM Aug 03, 2015Observed: 3.84 ft at 4:45PM Aug 03, 2015Observed: 3.84 ft at 5:00PM Aug 03, 2015Observed: 3.84 ft at 5:15PM Aug 03, 2015Observed: 3.84 ft at 5:30PM Aug 03, 2015Observed: 3.84 ft at 5:45PM Aug 03, 2015Observed: 3.84 ft at 6:00PM Aug 03, 2015Observed: 3.83 ft at 6:15PM Aug 03, 2015Observed: 3.83 ft at 6:30PM Aug 03, 2015Observed: 3.83 ft at 6:45PM Aug 03, 2015Observed: 3.83 ft at 7:00PM Aug 03, 2015Observed: 3.83 ft at 7:15PM Aug 03, 2015Observed: 3.82 ft at 7:30PM Aug 03, 2015Observed: 3.83 ft at 7:45PM Aug 03, 2015Observed: 3.82 ft at 8:00PM Aug 03, 2015Observed: 3.82 ft at 8:15PM Aug 03, 2015Observed: 3.82 ft at 8:30PM Aug 03, 2015Observed: 3.82 ft at 8:45PM Aug 03, 2015Observed: 3.82 ft at 9:00PM Aug 03, 2015Observed: 3.82 ft at 9:15PM Aug 03, 2015Observed: 3.81 ft at 9:30PM Aug 03, 2015Observed: 3.82 ft at 9:45PM Aug 03, 2015Observed: 3.82 ft at 10:00PM Aug 03, 2015Observed: 3.8 ft at 10:15PM Aug 03, 2015Observed: 3.8 ft at 10:30PM Aug 03, 2015Observed: 3.82 ft at 10:45PM Aug 03, 2015Observed: 3.82 ft at 11:00PM Aug 03, 2015Observed: 3.81 ft at 11:15PM Aug 03, 2015Observed: 3.82 ft at 11:30PM Aug 03, 2015Observed: 3.81 ft at 11:45PM Aug 03, 2015Observed: 3.81 ft at 12:00AM Aug 04, 2015Observed: 3.81 ft at 12:15AM Aug 04, 2015Observed: 3.81 ft at 12:30AM Aug 04, 2015Observed: 3.8 ft at 12:45AM Aug 04, 2015Observed: 3.81 ft at 1:00AM Aug 04, 2015Observed: 3.8 ft at 1:15AM Aug 04, 2015Observed: 3.8 ft at 1:30AM Aug 04, 2015Observed: 3.8 ft at 1:45AM Aug 04, 2015Observed: 3.8 ft at 2:00AM Aug 04, 2015Observed: 3.8 ft at 2:15AM Aug 04, 2015Observed: 3.8 ft at 2:30AM Aug 04, 2015Observed: 3.8 ft at 2:45AM Aug 04, 2015Observed: 3.8 ft at 3:00AM Aug 04, 2015Observed: 3.79 ft at 3:15AM Aug 04, 2015Observed: 3.8 ft at 3:30AM Aug 04, 2015Observed: 3.79 ft at 3:45AM Aug 04, 2015Observed: 3.8 ft at 4:00AM Aug 04, 2015Observed: 3.79 ft at 4:15AM Aug 04, 2015Observed: 3.79 ft at 4:30AM Aug 04, 2015Observed: 3.78 ft at 4:45AM Aug 04, 2015Observed: 3.79 ft at 5:00AM Aug 04, 2015Observed: 3.78 ft at 5:15AM Aug 04, 2015Observed: 3.78 ft at 5:30AM Aug 04, 2015Observed: 3.78 ft at 5:45AM Aug 04, 2015Observed: 3.78 ft at 6:00AM Aug 04, 2015Observed: 3.77 ft at 6:15AM Aug 04, 2015Observed: 3.77 ft at 6:30AM Aug 04, 2015Observed: 3.78 ft at 6:45AM Aug 04, 2015Observed: 3.77 ft at 7:00AM Aug 04, 2015Observed: 3.77 ft at 7:15AM Aug 04, 2015Observed: 3.77 ft at 7:30AM Aug 04, 2015Observed: 3.77 ft at 7:45AM Aug 04, 2015Observed: 3.77 ft at 8:00AM Aug 04, 2015Observed: 3.77 ft at 8:15AM Aug 04, 2015Observed: 3.77 ft at 8:30AM Aug 04, 2015Observed: 3.77 ft at 8:45AM Aug 04, 2015Observed: 3.76 ft at 9:00AM Aug 04, 2015Observed: 3.76 ft at 9:15AM Aug 04, 2015Observed: 3.76 ft at 9:30AM Aug 04, 2015Observed: 3.76 ft at 9:45AM Aug 04, 2015Observed: 3.76 ft at 10:00AM Aug 04, 2015Observed: 3.77 ft at 10:15AM Aug 04, 2015Observed: 3.76 ft at 10:30AM Aug 04, 2015Observed: 3.77 ft at 10:45AM Aug 04, 2015Observed: 3.76 ft at 11:00AM Aug 04, 2015Observed: 3.77 ft at 11:15AM Aug 04, 2015Observed: 3.77 ft at 11:30AM Aug 04, 2015Observed: 3.76 ft at 11:45AM Aug 04, 2015Observed: 3.76 ft at 12:00PM Aug 04, 2015Observed: 3.76 ft at 12:15PM Aug 04, 2015Observed: 3.76 ft at 12:30PM Aug 04, 2015Observed: 3.76 ft at 12:45PM Aug 04, 2015Observed: 3.76 ft at 1:00PM Aug 04, 2015Observed: 3.76 ft at 1:15PM Aug 04, 2015Observed: 3.76 ft at 1:30PM Aug 04, 2015Observed: 3.76 ft at 1:45PM Aug 04, 2015Observed: 3.75 ft at 2:00PM Aug 04, 2015Observed: 3.76 ft at 2:15PM Aug 04, 2015Observed: 3.75 ft at 2:30PM Aug 04, 2015Observed: 3.75 ft at 2:45PM Aug 04, 2015Observed: 3.75 ft at 3:00PM Aug 04, 2015Observed: 3.76 ft at 3:15PM Aug 04, 2015Observed: 3.75 ft at 3:30PM Aug 04, 2015Observed: 3.75 ft at 3:45PM Aug 04, 2015Observed: 3.75 ft at 4:00PM Aug 04, 2015Observed: 3.75 ft at 4:15PM Aug 04, 2015Observed: 3.75 ft at 4:30PM Aug 04, 2015Observed: 3.74 ft at 4:45PM Aug 04, 2015Observed: 3.74 ft at 5:00PM Aug 04, 2015Observed: 3.74 ft at 5:15PM Aug 04, 2015Observed: 3.75 ft at 5:30PM Aug 04, 2015Observed: 3.74 ft at 5:45PM Aug 04, 2015Observed: 3.75 ft at 6:00PM Aug 04, 2015Observed: 3.74 ft at 6:15PM Aug 04, 2015Observed: 3.74 ft at 6:30PM Aug 04, 2015Observed: 3.74 ft at 6:45PM Aug 04, 2015Observed: 3.74 ft at 7:00PM Aug 04, 2015Observed: 3.73 ft at 7:15PM Aug 04, 2015Observed: 3.73 ft at 7:30PM Aug 04, 2015USGS--Water Resources of the United StatesMCWI4(plotting HGIRV) Graph Created (9:17PM Aug 4, 2015)ObservedLatest observed value: 3.73 ft at 7:30 PM CDT 4-Aug-2015. 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) 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: 1-Jul-2015 6:29 PM
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