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Hydrograph River at a Glance Download
Grand River at Ionia Stage (ft)Flow (kcfs)Highest Observation: 13.44 ft at 6:45PM Apr 14, 2024Highest Observation: 13.44 ft at 7:00PM Apr 14, 2024Highest Observation: 13.44 ft at 7:15PM Apr 14, 2024Observed: 13.43 ft at 7:30PM Apr 14, 2024Highest Observation: 13.44 ft at 7:45PM Apr 14, 2024Observed: 13.43 ft at 8:00PM Apr 14, 2024Observed: 13.43 ft at 8:15PM Apr 14, 2024Observed: 13.43 ft at 8:30PM Apr 14, 2024Observed: 13.43 ft at 8:45PM Apr 14, 2024Observed: 13.43 ft at 9:00PM Apr 14, 2024Observed: 13.43 ft at 9:15PM Apr 14, 2024Observed: 13.43 ft at 9:30PM Apr 14, 2024Observed: 13.43 ft at 9:45PM Apr 14, 2024Observed: 13.43 ft at 10:00PM Apr 14, 2024Observed: 13.42 ft at 10:15PM Apr 14, 2024Observed: 13.43 ft at 10:30PM Apr 14, 2024Observed: 13.42 ft at 10:45PM Apr 14, 2024Observed: 13.42 ft at 12:00AM Apr 15, 2024Observed: 13.42 ft at 12:15AM Apr 15, 2024Observed: 13.42 ft at 12:30AM Apr 15, 2024Observed: 13.42 ft at 12:45AM Apr 15, 2024Observed: 13.42 ft at 1:00AM Apr 15, 2024Observed: 13.42 ft at 1:15AM Apr 15, 2024Observed: 13.42 ft at 1:30AM Apr 15, 2024Observed: 13.41 ft at 1:45AM Apr 15, 2024Observed: 13.41 ft at 2:00AM Apr 15, 2024Observed: 13.41 ft at 2:15AM Apr 15, 2024Observed: 13.41 ft at 2:30AM Apr 15, 2024Observed: 13.41 ft at 2:45AM Apr 15, 2024Observed: 13.41 ft at 3:00AM Apr 15, 2024Observed: 13.41 ft at 3:15AM Apr 15, 2024Observed: 13.4 ft at 3:30AM Apr 15, 2024Observed: 13.4 ft at 3:45AM Apr 15, 2024Observed: 13.4 ft at 4:00AM Apr 15, 2024Observed: 13.4 ft at 4:15AM Apr 15, 2024Observed: 13.4 ft at 4:30AM Apr 15, 2024Observed: 13.4 ft at 4:45AM Apr 15, 2024Observed: 13.4 ft at 5:00AM Apr 15, 2024Observed: 13.39 ft at 5:15AM Apr 15, 2024Observed: 13.39 ft at 5:30AM Apr 15, 2024Observed: 13.38 ft at 5:45AM Apr 15, 2024Observed: 13.38 ft at 6:00AM Apr 15, 2024Observed: 13.38 ft at 6:15AM Apr 15, 2024Observed: 13.38 ft at 6:30AM Apr 15, 2024Observed: 13.38 ft at 6:45AM Apr 15, 2024Observed: 13.38 ft at 7:00AM Apr 15, 2024Observed: 13.37 ft at 7:15AM Apr 15, 2024Observed: 13.37 ft at 7:30AM Apr 15, 2024Observed: 13.36 ft at 7:45AM Apr 15, 2024Observed: 13.36 ft at 8:00AM Apr 15, 2024Observed: 13.35 ft at 8:15AM Apr 15, 2024Observed: 13.35 ft at 8:30AM Apr 15, 2024Observed: 13.34 ft at 8:45AM Apr 15, 2024Observed: 13.34 ft at 9:00AM Apr 15, 2024Observed: 13.33 ft at 9:15AM Apr 15, 2024Observed: 13.33 ft at 9:30AM Apr 15, 2024Observed: 13.32 ft at 9:45AM Apr 15, 2024Observed: 13.31 ft at 10:00AM Apr 15, 2024Observed: 13.3 ft at 10:15AM Apr 15, 2024Observed: 13.3 ft at 10:30AM Apr 15, 2024Observed: 13.29 ft at 10:45AM Apr 15, 2024Observed: 13.28 ft at 11:00AM Apr 15, 2024Observed: 13.27 ft at 11:15AM Apr 15, 2024Observed: 13.27 ft at 11:30AM Apr 15, 2024Observed: 13.26 ft at 11:45AM Apr 15, 2024Observed: 13.26 ft at 12:00PM Apr 15, 2024Observed: 13.25 ft at 12:15PM Apr 15, 2024Observed: 13.24 ft at 12:30PM Apr 15, 2024Observed: 13.24 ft at 12:45PM Apr 15, 2024Observed: 13.23 ft at 1:00PM Apr 15, 2024Observed: 13.22 ft at 1:15PM Apr 15, 2024Observed: 13.22 ft at 1:30PM Apr 15, 2024Observed: 13.22 ft at 1:45PM Apr 15, 2024Observed: 13.22 ft at 2:00PM Apr 15, 2024Observed: 13.21 ft at 2:15PM Apr 15, 2024Observed: 13.21 ft at 2:30PM Apr 15, 2024Observed: 13.21 ft at 2:45PM Apr 15, 2024Observed: 13.22 ft at 3:00PM Apr 15, 2024Observed: 13.22 ft at 3:15PM Apr 15, 2024Observed: 13.22 ft at 3:30PM Apr 15, 2024Observed: 13.22 ft at 3:45PM Apr 15, 2024Observed: 13.22 ft at 4:00PM Apr 15, 2024Observed: 13.22 ft at 4:15PM Apr 15, 2024Observed: 13.22 ft at 4:30PM Apr 15, 2024Observed: 13.22 ft at 4:45PM Apr 15, 2024Observed: 13.21 ft at 5:00PM Apr 15, 2024Observed: 13.22 ft at 5:15PM Apr 15, 2024Observed: 13.21 ft at 5:30PM Apr 15, 2024Observed: 13.21 ft at 5:45PM Apr 15, 2024Observed: 13.21 ft at 6:00PM Apr 15, 2024Observed: 13.2 ft at 6:15PM Apr 15, 2024Observed: 13.19 ft at 6:30PM Apr 15, 2024Observed: 13.18 ft at 6:45PM Apr 15, 2024Observed: 13.18 ft at 7:00PM Apr 15, 2024Observed: 13.17 ft at 7:15PM Apr 15, 2024Observed: 13.17 ft at 7:30PM Apr 15, 2024Observed: 13.16 ft at 7:45PM Apr 15, 2024Observed: 13.15 ft at 8:00PM Apr 15, 2024Observed: 13.14 ft at 8:15PM Apr 15, 2024Observed: 13.14 ft at 8:30PM Apr 15, 2024Observed: 13.13 ft at 8:45PM Apr 15, 2024Observed: 13.12 ft at 9:00PM Apr 15, 2024Observed: 13.12 ft at 9:15PM Apr 15, 2024Observed: 13.11 ft at 9:30PM Apr 15, 2024Observed: 13.11 ft at 9:45PM Apr 15, 2024Observed: 13.1 ft at 10:00PM Apr 15, 2024Observed: 13.1 ft at 10:15PM Apr 15, 2024Observed: 13.09 ft at 10:30PM Apr 15, 2024Observed: 13.09 ft at 10:45PM Apr 15, 2024Observed: 13.08 ft at 11:00PM Apr 15, 2024Observed: 13.07 ft at 11:15PM Apr 15, 2024Observed: 13.07 ft at 11:30PM Apr 15, 2024Observed: 13.06 ft at 11:45PM Apr 15, 2024Observed: 13.06 ft at 12:00AM Apr 16, 2024Observed: 13.06 ft at 12:15AM Apr 16, 2024Observed: 13.05 ft at 12:30AM Apr 16, 2024Observed: 13.05 ft at 12:45AM Apr 16, 2024Observed: 13.05 ft at 1:00AM Apr 16, 2024Observed: 13.04 ft at 1:15AM Apr 16, 2024Observed: 13.04 ft at 1:30AM Apr 16, 2024Observed: 13.03 ft at 1:45AM Apr 16, 2024Observed: 13.03 ft at 2:00AM Apr 16, 2024Observed: 13.02 ft at 2:15AM Apr 16, 2024Observed: 13.02 ft at 2:30AM Apr 16, 2024Observed: 13.02 ft at 2:45AM Apr 16, 2024Observed: 13.01 ft at 3:00AM Apr 16, 2024Observed: 13.01 ft at 3:15AM Apr 16, 2024Observed: 13 ft at 3:30AM Apr 16, 2024Observed: 13 ft at 3:45AM Apr 16, 2024Observed: 12.99 ft at 4:00AM Apr 16, 2024Observed: 12.98 ft at 4:15AM Apr 16, 2024Observed: 12.98 ft at 4:30AM Apr 16, 2024Observed: 12.97 ft at 4:45AM Apr 16, 2024Observed: 12.96 ft at 5:00AM Apr 16, 2024Observed: 12.95 ft at 5:15AM Apr 16, 2024Observed: 12.94 ft at 5:30AM Apr 16, 2024Observed: 12.93 ft at 5:45AM Apr 16, 2024Observed: 12.92 ft at 6:00AM Apr 16, 2024Observed: 12.91 ft at 6:15AM Apr 16, 2024Observed: 12.91 ft at 6:30AM Apr 16, 2024Observed: 12.89 ft at 6:45AM Apr 16, 2024Observed: 12.89 ft at 7:00AM Apr 16, 2024Observed: 12.88 ft at 7:15AM Apr 16, 2024Observed: 12.88 ft at 7:30AM Apr 16, 2024Observed: 12.86 ft at 7:45AM Apr 16, 2024Observed: 12.86 ft at 8:00AM Apr 16, 2024Observed: 12.85 ft at 8:15AM Apr 16, 2024Observed: 12.85 ft at 8:30AM Apr 16, 2024Observed: 12.84 ft at 8:45AM Apr 16, 2024Observed: 12.84 ft at 9:00AM Apr 16, 2024Observed: 12.83 ft at 9:15AM Apr 16, 2024Observed: 12.83 ft at 9:30AM Apr 16, 2024Observed: 12.82 ft at 9:45AM Apr 16, 2024Observed: 12.82 ft at 10:00AM Apr 16, 2024Observed: 12.81 ft at 10:15AM Apr 16, 2024Observed: 12.81 ft at 10:30AM Apr 16, 2024Observed: 12.8 ft at 10:45AM Apr 16, 2024Observed: 12.8 ft at 11:00AM Apr 16, 2024Observed: 12.79 ft at 11:15AM Apr 16, 2024Observed: 12.79 ft at 11:30AM Apr 16, 2024Observed: 12.78 ft at 11:45AM Apr 16, 2024Observed: 12.78 ft at 12:00PM Apr 16, 2024Observed: 12.78 ft at 12:15PM Apr 16, 2024Observed: 12.77 ft at 12:30PM Apr 16, 2024Observed: 12.77 ft at 12:45PM Apr 16, 2024Observed: 12.77 ft at 1:00PM Apr 16, 2024Observed: 12.76 ft at 1:15PM Apr 16, 2024Observed: 12.76 ft at 1:30PM Apr 16, 2024Observed: 12.76 ft at 1:45PM Apr 16, 2024Observed: 12.75 ft at 2:00PM Apr 16, 2024Observed: 12.75 ft at 2:15PM Apr 16, 2024Observed: 12.75 ft at 2:30PM Apr 16, 2024Observed: 12.75 ft at 2:45PM Apr 16, 2024Observed: 12.74 ft at 3:00PM Apr 16, 2024Observed: 12.74 ft at 3:15PM Apr 16, 2024Observed: 12.73 ft at 3:30PM Apr 16, 2024Observed: 12.73 ft at 3:45PM Apr 16, 2024Observed: 12.73 ft at 4:00PM Apr 16, 2024Observed: 12.73 ft at 4:15PM Apr 16, 2024Observed: 12.73 ft at 4:30PM Apr 16, 2024Observed: 12.72 ft at 4:45PM Apr 16, 2024Observed: 12.72 ft at 5:00PM Apr 16, 2024Observed: 12.72 ft at 5:15PM Apr 16, 2024Observed: 12.71 ft at 5:30PM Apr 16, 2024Observed: 12.71 ft at 5:45PM Apr 16, 2024Observed: 12.71 ft at 6:00PM Apr 16, 2024Observed: 12.7 ft at 6:15PM Apr 16, 2024Observed: 12.7 ft at 6:30PM Apr 16, 2024Observed: 12.7 ft at 6:45PM Apr 16, 2024Observed: 12.7 ft at 7:00PM Apr 16, 2024Observed: 12.69 ft at 7:15PM Apr 16, 2024Observed: 12.69 ft at 7:30PM Apr 16, 2024Observed: 12.69 ft at 7:45PM Apr 16, 2024Observed: 12.68 ft at 8:00PM Apr 16, 2024Observed: 12.68 ft at 8:15PM Apr 16, 2024Observed: 12.68 ft at 8:30PM Apr 16, 2024Observed: 12.67 ft at 8:45PM Apr 16, 2024Observed: 12.67 ft at 9:00PM Apr 16, 2024Observed: 12.66 ft at 9:15PM Apr 16, 2024Observed: 12.66 ft at 9:30PM Apr 16, 2024Observed: 12.66 ft at 9:45PM Apr 16, 2024Observed: 12.65 ft at 10:00PM Apr 16, 2024Observed: 12.65 ft at 10:15PM Apr 16, 2024Observed: 12.64 ft at 10:30PM Apr 16, 2024Observed: 12.64 ft at 10:45PM Apr 16, 2024Observed: 12.64 ft at 11:00PM Apr 16, 2024Observed: 12.63 ft at 11:15PM Apr 16, 2024Observed: 12.63 ft at 11:30PM Apr 16, 2024Observed: 12.62 ft at 11:45PM Apr 16, 2024Observed: 12.61 ft at 12:00AM Apr 17, 2024Observed: 12.6 ft at 12:15AM Apr 17, 2024Observed: 12.59 ft at 12:30AM Apr 17, 2024Observed: 12.58 ft at 12:45AM Apr 17, 2024Observed: 12.57 ft at 1:00AM Apr 17, 2024Observed: 12.56 ft at 1:15AM Apr 17, 2024Observed: 12.55 ft at 1:30AM Apr 17, 2024Observed: 12.54 ft at 1:45AM Apr 17, 2024Observed: 12.53 ft at 2:00AM Apr 17, 2024Observed: 12.52 ft at 2:15AM Apr 17, 2024Observed: 12.51 ft at 2:30AM Apr 17, 2024Observed: 12.5 ft at 2:45AM Apr 17, 2024Observed: 12.5 ft at 3:00AM Apr 17, 2024Observed: 12.49 ft at 3:15AM Apr 17, 2024Observed: 12.48 ft at 3:30AM Apr 17, 2024Observed: 12.47 ft at 3:45AM Apr 17, 2024Observed: 12.47 ft at 4:00AM Apr 17, 2024Observed: 12.46 ft at 4:15AM Apr 17, 2024Observed: 12.45 ft at 4:30AM Apr 17, 2024Observed: 12.45 ft at 4:45AM Apr 17, 2024Observed: 12.45 ft at 5:00AM Apr 17, 2024Observed: 12.44 ft at 5:15AM Apr 17, 2024Observed: 12.44 ft at 5:30AM Apr 17, 2024Observed: 12.44 ft at 5:45AM Apr 17, 2024Observed: 12.43 ft at 6:00AM Apr 17, 2024Observed: 12.43 ft at 6:15AM Apr 17, 2024Observed: 12.42 ft at 6:30AM Apr 17, 2024Observed: 12.42 ft at 6:45AM Apr 17, 2024Observed: 12.41 ft at 7:00AM Apr 17, 2024Observed: 12.41 ft at 7:15AM Apr 17, 2024Observed: 12.41 ft at 7:30AM Apr 17, 2024Observed: 12.4 ft at 7:45AM Apr 17, 2024Observed: 12.4 ft at 8:00AM Apr 17, 2024Observed: 12.39 ft at 8:15AM Apr 17, 2024Observed: 12.39 ft at 8:30AM Apr 17, 2024Observed: 12.38 ft at 8:45AM Apr 17, 2024Observed: 12.38 ft at 9:00AM Apr 17, 2024Observed: 12.37 ft at 9:15AM Apr 17, 2024Observed: 12.36 ft at 9:30AM Apr 17, 2024Observed: 12.36 ft at 9:45AM Apr 17, 2024Observed: 12.35 ft at 10:00AM Apr 17, 2024Observed: 12.34 ft at 10:15AM Apr 17, 2024Observed: 12.33 ft at 10:30AM Apr 17, 2024Observed: 12.32 ft at 10:45AM Apr 17, 2024Observed: 12.31 ft at 11:00AM Apr 17, 2024Observed: 12.3 ft at 11:15AM Apr 17, 2024Observed: 12.29 ft at 11:30AM Apr 17, 2024Observed: 12.28 ft at 11:45AM Apr 17, 2024Observed: 12.27 ft at 12:00PM Apr 17, 2024Observed: 12.26 ft at 12:15PM Apr 17, 2024Observed: 12.25 ft at 12:30PM Apr 17, 2024Observed: 12.25 ft at 12:45PM Apr 17, 2024Observed: 12.24 ft at 1:00PM Apr 17, 2024Observed: 12.24 ft at 1:15PM Apr 17, 2024Observed: 12.27 ft at 1:30PM Apr 17, 2024Observed: 12.27 ft at 1:45PM Apr 17, 2024Observed: 12.27 ft at 2:00PM Apr 17, 2024Observed: 12.28 ft at 2:15PM Apr 17, 2024Observed: 12.29 ft at 2:30PM Apr 17, 2024Observed: 12.29 ft at 2:45PM Apr 17, 2024Observed: 12.3 ft at 3:00PM Apr 17, 2024Observed: 12.31 ft at 3:15PM Apr 17, 2024Observed: 12.31 ft at 3:30PM Apr 17, 2024Observed: 12.32 ft at 3:45PM Apr 17, 2024Observed: 12.33 ft at 4:00PM Apr 17, 2024Observed: 12.33 ft at 4:15PM Apr 17, 2024Observed: 12.33 ft at 4:30PM Apr 17, 2024Observed: 12.34 ft at 4:45PM Apr 17, 2024Observed: 12.34 ft at 5:00PM Apr 17, 2024Observed: 12.34 ft at 5:15PM Apr 17, 2024Observed: 12.34 ft at 5:30PM Apr 17, 2024Observed: 12.33 ft at 5:45PM Apr 17, 2024Observed: 12.33 ft at 6:00PM Apr 17, 2024Observed: 12.33 ft at 6:15PM Apr 17, 2024Observed: 12.32 ft at 6:30PM Apr 17, 2024Observed: 12.32 ft at 6:45PM Apr 17, 2024Observed: 12.31 ft at 7:00PM Apr 17, 2024Observed: 12.3 ft at 7:15PM Apr 17, 2024Observed: 12.29 ft at 7:30PM Apr 17, 2024Observed: 12.29 ft at 7:45PM Apr 17, 2024Observed: 12.28 ft at 8:00PM Apr 17, 2024Observed: 12.28 ft at 8:15PM Apr 17, 2024Observed: 12.28 ft at 8:30PM Apr 17, 2024Observed: 12.27 ft at 8:45PM Apr 17, 2024Observed: 12.27 ft at 9:00PM Apr 17, 2024Observed: 12.27 ft at 9:15PM Apr 17, 2024Observed: 12.27 ft at 9:30PM Apr 17, 2024Observed: 12.28 ft at 9:45PM Apr 17, 2024Observed: 12.28 ft at 10:00PM Apr 17, 2024Observed: 12.28 ft at 10:15PM Apr 17, 2024Observed: 12.28 ft at 10:30PM Apr 17, 2024Observed: 12.29 ft at 10:45PM Apr 17, 2024Observed: 12.29 ft at 11:00PM Apr 17, 2024Observed: 12.29 ft at 11:15PM Apr 17, 2024Observed: 12.29 ft at 11:30PM Apr 17, 2024Observed: 12.28 ft at 11:45PM Apr 17, 2024Observed: 12.28 ft at 12:00AM Apr 18, 2024Observed: 12.28 ft at 12:15AM Apr 18, 2024Observed: 12.27 ft at 12:30AM Apr 18, 2024Observed: 12.26 ft at 12:45AM Apr 18, 2024Observed: 12.26 ft at 1:00AM Apr 18, 2024Observed: 12.25 ft at 1:15AM Apr 18, 2024Observed: 12.24 ft at 1:30AM Apr 18, 2024Observed: 12.23 ft at 1:45AM Apr 18, 2024Observed: 12.23 ft at 2:00AM Apr 18, 2024Observed: 12.22 ft at 2:15AM Apr 18, 2024Observed: 12.21 ft at 2:30AM Apr 18, 2024Observed: 12.21 ft at 2:45AM Apr 18, 2024Observed: 12.2 ft at 3:00AM Apr 18, 2024Observed: 12.2 ft at 3:15AM Apr 18, 2024Observed: 12.19 ft at 3:30AM Apr 18, 2024Observed: 12.19 ft at 3:45AM Apr 18, 2024Observed: 12.18 ft at 4:00AM Apr 18, 2024Observed: 12.18 ft at 4:15AM Apr 18, 2024Observed: 12.17 ft at 4:30AM Apr 18, 2024Observed: 12.17 ft at 4:45AM Apr 18, 2024Observed: 12.17 ft at 5:00AM Apr 18, 2024Observed: 12.17 ft at 5:15AM Apr 18, 2024Observed: 12.16 ft at 5:30AM Apr 18, 2024Observed: 12.16 ft at 5:45AM Apr 18, 2024Observed: 12.16 ft at 6:00AM Apr 18, 2024Observed: 12.16 ft at 6:15AM Apr 18, 2024Observed: 12.16 ft at 6:30AM Apr 18, 2024Observed: 12.15 ft at 6:45AM Apr 18, 2024Observed: 12.15 ft at 7:00AM Apr 18, 2024Observed: 12.15 ft at 7:15AM Apr 18, 2024Observed: 12.15 ft at 7:30AM Apr 18, 2024Observed: 12.15 ft at 7:45AM Apr 18, 2024Observed: 12.15 ft at 8:00AM Apr 18, 2024Observed: 12.15 ft at 8:15AM Apr 18, 2024Observed: 12.15 ft at 8:30AM Apr 18, 2024Observed: 12.15 ft at 8:45AM Apr 18, 2024Observed: 12.15 ft at 9:00AM Apr 18, 2024Observed: 12.16 ft at 9:15AM Apr 18, 2024Observed: 12.16 ft at 9:30AM Apr 18, 2024Observed: 12.17 ft at 9:45AM Apr 18, 2024Observed: 12.18 ft at 10:00AM Apr 18, 2024Observed: 12.18 ft at 10:15AM Apr 18, 2024Observed: 12.19 ft at 10:30AM Apr 18, 2024Observed: 12.2 ft at 10:45AM Apr 18, 2024Observed: 12.21 ft at 11:00AM Apr 18, 2024Observed: 12.21 ft at 11:15AM Apr 18, 2024Observed: 12.22 ft at 11:30AM Apr 18, 2024Observed: 12.23 ft at 11:45AM Apr 18, 2024Observed: 12.25 ft at 12:00PM Apr 18, 2024Observed: 12.26 ft at 12:15PM Apr 18, 2024Observed: 12.27 ft at 12:30PM Apr 18, 2024Observed: 12.28 ft at 12:45PM Apr 18, 2024Observed: 12.29 ft at 1:00PM Apr 18, 2024Observed: 12.31 ft at 1:15PM Apr 18, 2024Observed: 12.32 ft at 1:30PM Apr 18, 2024Observed: 12.33 ft at 1:45PM Apr 18, 2024Observed: 12.35 ft at 2:00PM Apr 18, 2024Observed: 12.36 ft at 2:15PM Apr 18, 2024Observed: 12.38 ft at 2:30PM Apr 18, 2024Observed: 12.38 ft at 2:45PM Apr 18, 2024Observed: 12.4 ft at 3:00PM Apr 18, 2024Observed: 12.41 ft at 3:15PM Apr 18, 2024Observed: 12.42 ft at 3:30PM Apr 18, 2024Observed: 12.43 ft at 3:45PM Apr 18, 2024Observed: 12.44 ft at 4:00PM Apr 18, 2024Observed: 12.45 ft at 4:15PM Apr 18, 2024Observed: 12.46 ft at 4:30PM Apr 18, 2024Observed: 12.47 ft at 4:45PM Apr 18, 2024Observed: 12.48 ft at 5:00PM Apr 18, 2024Observed: 12.49 ft at 5:15PM Apr 18, 2024Observed: 12.49 ft at 5:30PM Apr 18, 2024Observed: 12.5 ft at 5:45PM Apr 18, 2024Observed: 12.51 ft at 6:00PM Apr 18, 2024Observed: 12.52 ft at 6:15PM Apr 18, 2024Observed: 12.52 ft at 6:30PM Apr 18, 2024Observed: 12.53 ft at 6:45PM Apr 18, 2024Observed: 12.54 ft at 7:00PM Apr 18, 2024Observed: 12.54 ft at 7:15PM Apr 18, 2024Observed: 12.55 ft at 7:30PM Apr 18, 2024Observed: 12.55 ft at 7:45PM Apr 18, 2024Observed: 12.56 ft at 8:00PM Apr 18, 2024Observed: 12.56 ft at 8:15PM Apr 18, 2024Observed: 12.56 ft at 8:30PM Apr 18, 2024Observed: 12.57 ft at 8:45PM Apr 18, 2024Observed: 12.57 ft at 9:00PM Apr 18, 2024Observed: 12.57 ft at 9:15PM Apr 18, 2024Observed: 12.58 ft at 9:30PM Apr 18, 2024Observed: 12.58 ft at 9:45PM Apr 18, 2024Observed: 12.58 ft at 10:00PM Apr 18, 2024Observed: 12.58 ft at 10:15PM Apr 18, 2024Observed: 12.58 ft at 10:30PM Apr 18, 2024Observed: 12.58 ft at 10:45PM Apr 18, 2024Observed: 12.58 ft at 11:00PM Apr 18, 2024Observed: 12.59 ft at 11:15PM Apr 18, 2024Observed: 12.58 ft at 11:30PM Apr 18, 2024Observed: 12.58 ft at 11:45PM Apr 18, 2024Observed: 12.58 ft at 12:00AM Apr 19, 2024Observed: 12.58 ft at 12:15AM Apr 19, 2024Observed: 12.58 ft at 12:30AM Apr 19, 2024Observed: 12.58 ft at 12:45AM Apr 19, 2024Observed: 12.57 ft at 1:00AM Apr 19, 2024Observed: 12.57 ft at 1:15AM Apr 19, 2024Observed: 12.56 ft at 1:30AM Apr 19, 2024Observed: 12.55 ft at 1:45AM Apr 19, 2024Observed: 12.55 ft at 2:00AM Apr 19, 2024Observed: 12.54 ft at 2:15AM Apr 19, 2024Observed: 12.53 ft at 2:30AM Apr 19, 2024Observed: 12.52 ft at 2:45AM Apr 19, 2024Observed: 12.51 ft at 3:00AM Apr 19, 2024Observed: 12.5 ft at 3:15AM Apr 19, 2024Observed: 12.5 ft at 3:30AM Apr 19, 2024Observed: 12.49 ft at 3:45AM Apr 19, 2024Observed: 12.48 ft at 4:00AM Apr 19, 2024Observed: 12.48 ft at 4:15AM Apr 19, 2024Observed: 12.47 ft at 4:30AM Apr 19, 2024Observed: 12.46 ft at 4:45AM Apr 19, 2024Observed: 12.46 ft at 5:00AM Apr 19, 2024Observed: 12.45 ft at 5:15AM Apr 19, 2024Observed: 12.45 ft at 5:30AM Apr 19, 2024Observed: 12.44 ft at 5:45AM Apr 19, 2024Observed: 12.44 ft at 6:00AM Apr 19, 2024Observed: 12.43 ft at 6:15AM Apr 19, 2024Observed: 12.43 ft at 6:30AM Apr 19, 2024Observed: 12.43 ft at 6:45AM Apr 19, 2024Observed: 12.43 ft at 7:00AM Apr 19, 2024Observed: 12.42 ft at 7:15AM Apr 19, 2024Observed: 12.41 ft at 7:30AM Apr 19, 2024Observed: 12.41 ft at 7:45AM Apr 19, 2024Observed: 12.41 ft at 8:00AM Apr 19, 2024Observed: 12.41 ft at 8:15AM Apr 19, 2024Observed: 12.41 ft at 8:30AM Apr 19, 2024Observed: 12.41 ft at 8:45AM Apr 19, 2024Observed: 12.42 ft at 9:00AM Apr 19, 2024Observed: 12.42 ft at 9:15AM Apr 19, 2024Observed: 12.43 ft at 9:30AM Apr 19, 2024Observed: 12.43 ft at 9:45AM Apr 19, 2024Observed: 12.43 ft at 10:00AM Apr 19, 2024Observed: 12.44 ft at 10:15AM Apr 19, 2024Observed: 12.44 ft at 10:30AM Apr 19, 2024Observed: 12.44 ft at 10:45AM Apr 19, 2024Observed: 12.44 ft at 11:00AM Apr 19, 2024Observed: 12.44 ft at 11:15AM Apr 19, 2024Observed: 12.44 ft at 11:30AM Apr 19, 2024Observed: 12.43 ft at 11:45AM Apr 19, 2024Observed: 12.43 ft at 12:00PM Apr 19, 2024Observed: 12.42 ft at 12:15PM Apr 19, 2024Observed: 12.41 ft at 12:30PM Apr 19, 2024Observed: 12.39 ft at 12:45PM Apr 19, 2024Observed: 12.38 ft at 1:00PM Apr 19, 2024Observed: 12.37 ft at 1:15PM Apr 19, 2024Observed: 12.36 ft at 1:30PM Apr 19, 2024Observed: 12.35 ft at 1:45PM Apr 19, 2024Observed: 12.35 ft at 2:00PM Apr 19, 2024Observed: 12.34 ft at 2:15PM Apr 19, 2024Observed: 12.34 ft at 2:30PM Apr 19, 2024Observed: 12.34 ft at 2:45PM Apr 19, 2024Observed: 12.34 ft at 3:00PM Apr 19, 2024Observed: 12.35 ft at 3:15PM Apr 19, 2024Observed: 12.35 ft at 3:30PM Apr 19, 2024Observed: 12.36 ft at 3:45PM Apr 19, 2024Observed: 12.36 ft at 4:00PM Apr 19, 2024Observed: 12.37 ft at 4:15PM Apr 19, 2024Observed: 12.37 ft at 4:30PM Apr 19, 2024Observed: 12.37 ft at 4:45PM Apr 19, 2024Forecast: 12.5 ft 8:00PM Apr 19, 2024Forecast: 12.7 ft 2:00AM Apr 20, 2024Forecast: 12.8 ft 8:00AM Apr 20, 2024Forecast: 12.9 ft 2:00PM Apr 20, 2024Forecast: 12.9 ft 8:00PM Apr 20, 2024Highest Forecast: 13 ft 2:00AM Apr 21, 2024Highest Forecast: 13 ft 8:00AM Apr 21, 2024Highest Forecast: 13 ft 2:00PM Apr 21, 2024Highest Forecast: 13 ft 8:00PM Apr 21, 2024Highest Forecast: 13 ft 2:00AM Apr 22, 2024Highest Forecast: 13 ft 8:00AM Apr 22, 2024Forecast: 12.9 ft 2:00PM Apr 22, 2024Forecast: 12.9 ft 8:00PM Apr 22, 2024Forecast: 12.8 ft 2:00AM Apr 23, 2024Forecast: 12.8 ft 8:00AM Apr 23, 2024Forecast: 12.7 ft 2:00PM Apr 23, 2024Forecast: 12.6 ft 8:00PM Apr 23, 2024Forecast: 12.5 ft 2:00AM Apr 24, 2024Forecast: 12.4 ft 8:00AM Apr 24, 2024Forecast: 12.4 ft 2:00PM Apr 24, 2024Forecast: 12.3 ft 8:00PM Apr 24, 2024Forecast: 12.2 ft 2:00AM Apr 25, 2024Forecast: 12.1 ft 8:00AM Apr 25, 2024Forecast: 12 ft 2:00PM Apr 25, 2024Forecast: 11.9 ft 8:00PM Apr 25, 2024Forecast: 11.8 ft 2:00AM Apr 26, 2024Forecast: 11.7 ft 8:00AM Apr 26, 2024USGS--Water Resources of the United StatesIONM4(plotting HGIRZ) Graph Created (6:36PM Apr 19, 2024)ObservedForecast (issued 11:36AM Apr 19)Latest observed value: 12.37 ft at 4:45 PM EDT 19-Apr-2024. Flood Stage is 21 ft
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Tabular Data (EDT)
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Datum: NAVD88
Metadata
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.

NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts for the Grand River at Ionia are issued as needed during times of high water, but are not routinely available.

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Flood Categories (in feet)
Major Flood Stage: 25
Moderate Flood Stage: 23
Flood Stage: 21
Action Stage: 13.5
Low Stage (in feet): -9999

Historic Crests
(1) 24.69 ft on 04/20/2013
(2) 24.40 ft on 02/23/2018
(3) 24.30 ft on 03/21/1948
(4) 23.60 ft on 04/07/1947
(5) 23.43 ft on 04/01/1960
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 19.93 ft on 06/29/2021
(2) 23.20 ft on 05/20/2020
(3) 19.89 ft on 03/16/2019
(4) 24.40 ft on 02/23/2018
(5) 22.12 ft on 04/08/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 5.61 ft on 07/16/1977
(2) 6.20 ft on 09/08/1954

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
25 Expect major flooding of Ionia Fairgrounds and businesses and residences in low lying areas near the river. Railroad tracks and several additional businesses flooded in vicinity of Fairgrounds along Steele Street. Homes along Quarry Road flooded.
23 Expect moderate flooding of several roads, businesses, and residences, in the Ionia area and of structures located in the Ionia Fairgrounds. Water halfway up windows on automobile building at Ionia Fairgrounds. Water begins to flood parking lot of Dollar General store, Save-a-Lot, and the Ionia Secretary of State office. Homes along Quarry Road begin to flood.
21 Expect minor flooding of several buildings in the Ionia Fairgrounds, a shopping mall near the Fairgrounds, and several businesses and residences in the southern portion of Ionia.
18 Water surrounds automobile building at Ionia Fairgrounds.
16 Expect extensive lowland overflow to occur.
15 High water affects North Drive on Ionia Fairgrounds.
13.5 River is bankfull. Minor overflow begins in low lying areas along the river near and across from the Ionia Fairground.
Photos
(1) April 2013 Flooding - Ionia Fair Grounds
(2) April 2013 Flooding - Grand River near Ionia Fair Grounds
(3) May 2004 Flooding - Dollar General Parking Lot in Ionia
(4) May 2004 Flooding - Save-A-Lot Parking Lot in Ionia
(5) 2004 Flooding of Ionia County Fairgrounds
(6) 2004 Flooding of Ionia County Fairgrounds Entrance
(7) 2004 Flooding of Ionia County Fairground Buildings
(8) Grand River Overflowing into Ionia Fairgrounds
(9) Flooding at Fairgrounds in 1990
(10) Flooding near Ionia Fairgrounds Administrative Office
(11) Grand River at Ionia Flooding into Ionia Fairgrounds
(12) Additional Image of Flooding at Fairgrounds
(13) Flooding of Access Road at Ionia Fairgrounds
(14) Additional Photo of Flooding at Fairgrounds
(15) Grand River at Ionia Overflowing into Low Lying Areas
(16) Grand River at Ionia - Looking Downstream from Bridge
(17) USGS Gaging House on Left Bank of Grand River at Ionia
(18) Inside USGS Gaging House
(19) Grand River at Ionia - Looking Upstream from Bridge
(20) Wire Weight Gage on Bridge
About This Location Collapse

Latitude: 42.971977° N, Longitude: 85.069172° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 21 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 614.63 ft 635.63 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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How low could the river get?
USGS Streamflow Duration Hydrographs
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Hydrologic Resources Additional Resources
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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.
NWS Information
National Weather Service
Grand Rapids Weather Forecast Office
4899 Tim Dougherty Drive SE
Grand Rapids, MI 49512-4034
(616) 949-0643
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Page last modified: 2-Nov-2020 7:30 PM
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