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Hydrograph River at a Glance Download
Fox River at McHenry (Stratton Lock and Dam) tailwater Tailwater (ft)Flow (kcfs)Observed: 2.41 ft at 6:45PM Apr 24, 2024Observed: 2.41 ft at 7:00PM Apr 24, 2024Observed: 2.4 ft at 7:15PM Apr 24, 2024Observed: 2.41 ft at 7:30PM Apr 24, 2024Observed: 2.41 ft at 7:45PM Apr 24, 2024Observed: 2.41 ft at 8:00PM Apr 24, 2024Observed: 2.41 ft at 8:15PM Apr 24, 2024Observed: 2.41 ft at 8:30PM Apr 24, 2024Observed: 2.4 ft at 8:45PM Apr 24, 2024Observed: 2.4 ft at 9:00PM Apr 24, 2024Observed: 2.39 ft at 9:15PM Apr 24, 2024Observed: 2.39 ft at 9:30PM Apr 24, 2024Observed: 2.4 ft at 9:45PM Apr 24, 2024Observed: 2.39 ft at 10:00PM Apr 24, 2024Observed: 2.39 ft at 10:15PM Apr 24, 2024Observed: 2.38 ft at 10:30PM Apr 24, 2024Observed: 2.38 ft at 10:45PM Apr 24, 2024Observed: 2.38 ft at 11:00PM Apr 24, 2024Observed: 2.38 ft at 11:15PM Apr 24, 2024Observed: 2.38 ft at 11:30PM Apr 24, 2024Observed: 2.38 ft at 11:45PM Apr 24, 2024Observed: 2.38 ft at 12:00AM Apr 25, 2024Observed: 2.37 ft at 12:15AM Apr 25, 2024Observed: 2.37 ft at 12:30AM Apr 25, 2024Observed: 2.37 ft at 12:45AM Apr 25, 2024Observed: 2.37 ft at 1:00AM Apr 25, 2024Observed: 2.37 ft at 1:15AM Apr 25, 2024Observed: 2.37 ft at 1:30AM Apr 25, 2024Observed: 2.35 ft at 1:45AM Apr 25, 2024Observed: 2.36 ft at 2:00AM Apr 25, 2024Observed: 2.35 ft at 2:15AM Apr 25, 2024Observed: 2.36 ft at 2:30AM Apr 25, 2024Observed: 2.35 ft at 2:45AM Apr 25, 2024Observed: 2.35 ft at 3:00AM Apr 25, 2024Observed: 2.35 ft at 3:15AM Apr 25, 2024Observed: 2.35 ft at 3:30AM Apr 25, 2024Observed: 2.34 ft at 3:45AM Apr 25, 2024Observed: 2.35 ft at 4:00AM Apr 25, 2024Observed: 2.34 ft at 4:15AM Apr 25, 2024Observed: 2.35 ft at 4:30AM Apr 25, 2024Observed: 2.34 ft at 4:45AM Apr 25, 2024Observed: 2.34 ft at 5:00AM Apr 25, 2024Observed: 2.33 ft at 5:15AM Apr 25, 2024Observed: 2.34 ft at 5:30AM Apr 25, 2024Observed: 2.34 ft at 5:45AM Apr 25, 2024Observed: 2.33 ft at 6:00AM Apr 25, 2024Observed: 2.34 ft at 6:15AM Apr 25, 2024Observed: 2.34 ft at 6:30AM Apr 25, 2024Observed: 2.33 ft at 6:45AM Apr 25, 2024Observed: 2.33 ft at 7:00AM Apr 25, 2024Observed: 2.33 ft at 7:15AM Apr 25, 2024Observed: 2.32 ft at 7:30AM Apr 25, 2024Observed: 2.32 ft at 7:45AM Apr 25, 2024Observed: 2.32 ft at 8:00AM Apr 25, 2024Observed: 2.33 ft at 8:15AM Apr 25, 2024Observed: 2.33 ft at 8:30AM Apr 25, 2024Observed: 2.33 ft at 8:45AM Apr 25, 2024Observed: 2.33 ft at 9:00AM Apr 25, 2024Observed: 2.32 ft at 9:15AM Apr 25, 2024Observed: 2.33 ft at 9:30AM Apr 25, 2024Observed: 2.33 ft at 9:45AM Apr 25, 2024Observed: 2.33 ft at 10:00AM Apr 25, 2024Observed: 2.33 ft at 10:15AM Apr 25, 2024Observed: 2.33 ft at 10:30AM Apr 25, 2024Observed: 2.32 ft at 10:45AM Apr 25, 2024Observed: 2.32 ft at 11:00AM Apr 25, 2024Observed: 2.32 ft at 11:15AM Apr 25, 2024Observed: 2.32 ft at 11:30AM Apr 25, 2024Observed: 2.36 ft at 11:45AM Apr 25, 2024Observed: 2.33 ft at 12:00PM Apr 25, 2024Observed: 2.33 ft at 12:15PM Apr 25, 2024Observed: 2.42 ft at 12:30PM Apr 25, 2024Observed: 2.46 ft at 12:45PM Apr 25, 2024Observed: 2.46 ft at 1:00PM Apr 25, 2024Observed: 2.47 ft at 1:15PM Apr 25, 2024Observed: 2.47 ft at 1:30PM Apr 25, 2024Observed: 2.5 ft at 1:45PM Apr 25, 2024Observed: 2.49 ft at 2:00PM Apr 25, 2024Observed: 2.5 ft at 2:15PM Apr 25, 2024Observed: 2.51 ft at 2:30PM Apr 25, 2024Observed: 2.5 ft at 2:45PM Apr 25, 2024Observed: 2.5 ft at 3:00PM Apr 25, 2024Observed: 2.5 ft at 3:15PM Apr 25, 2024Observed: 2.5 ft at 3:30PM Apr 25, 2024Observed: 2.5 ft at 3:45PM Apr 25, 2024Observed: 2.51 ft at 4:00PM Apr 25, 2024Observed: 2.5 ft at 4:15PM Apr 25, 2024Observed: 2.5 ft at 4:30PM Apr 25, 2024Observed: 2.5 ft at 4:45PM Apr 25, 2024Observed: 2.51 ft at 5:00PM Apr 25, 2024Observed: 2.52 ft at 5:15PM Apr 25, 2024Observed: 2.51 ft at 5:30PM Apr 25, 2024Observed: 2.51 ft at 5:45PM Apr 25, 2024Observed: 2.5 ft at 6:00PM Apr 25, 2024Observed: 2.51 ft at 6:15PM Apr 25, 2024Observed: 2.52 ft at 6:30PM Apr 25, 2024Observed: 2.51 ft at 6:45PM Apr 25, 2024Observed: 2.51 ft at 7:00PM Apr 25, 2024Observed: 2.51 ft at 7:15PM Apr 25, 2024Observed: 2.51 ft at 7:30PM Apr 25, 2024Observed: 2.51 ft at 7:45PM Apr 25, 2024Observed: 2.51 ft at 8:00PM Apr 25, 2024Observed: 2.51 ft at 8:15PM Apr 25, 2024Observed: 2.51 ft at 8:30PM Apr 25, 2024Observed: 2.51 ft at 8:45PM Apr 25, 2024Observed: 2.51 ft at 9:00PM Apr 25, 2024Observed: 2.51 ft at 9:15PM Apr 25, 2024Observed: 2.51 ft at 9:30PM Apr 25, 2024Observed: 2.5 ft at 9:45PM Apr 25, 2024Observed: 2.5 ft at 10:00PM Apr 25, 2024Observed: 2.51 ft at 10:15PM Apr 25, 2024Observed: 2.5 ft at 10:30PM Apr 25, 2024Observed: 2.51 ft at 10:45PM Apr 25, 2024Observed: 2.5 ft at 11:00PM Apr 25, 2024Observed: 2.51 ft at 11:15PM Apr 25, 2024Observed: 2.51 ft at 11:30PM Apr 25, 2024Observed: 2.5 ft at 11:45PM Apr 25, 2024Observed: 2.5 ft at 12:00AM Apr 26, 2024Observed: 2.5 ft at 12:15AM Apr 26, 2024Observed: 2.51 ft at 12:30AM Apr 26, 2024Observed: 2.5 ft at 12:45AM Apr 26, 2024Observed: 2.49 ft at 1:00AM Apr 26, 2024Observed: 2.5 ft at 1:15AM Apr 26, 2024Observed: 2.5 ft at 1:30AM Apr 26, 2024Observed: 2.5 ft at 1:45AM Apr 26, 2024Observed: 2.5 ft at 2:00AM Apr 26, 2024Observed: 2.5 ft at 2:15AM Apr 26, 2024Observed: 2.5 ft at 2:30AM Apr 26, 2024Observed: 2.5 ft at 2:45AM Apr 26, 2024Observed: 2.5 ft at 3:00AM Apr 26, 2024Observed: 2.5 ft at 3:15AM Apr 26, 2024Observed: 2.49 ft at 3:30AM Apr 26, 2024Observed: 2.5 ft at 3:45AM Apr 26, 2024Observed: 2.51 ft at 4:00AM Apr 26, 2024Observed: 2.5 ft at 4:15AM Apr 26, 2024Observed: 2.51 ft at 4:30AM Apr 26, 2024Observed: 2.51 ft at 4:45AM Apr 26, 2024Observed: 2.5 ft at 5:00AM Apr 26, 2024Observed: 2.51 ft at 5:15AM Apr 26, 2024Observed: 2.51 ft at 5:30AM Apr 26, 2024Observed: 2.5 ft at 5:45AM Apr 26, 2024Observed: 2.51 ft at 6:00AM Apr 26, 2024Observed: 2.51 ft at 6:15AM Apr 26, 2024Observed: 2.51 ft at 6:30AM Apr 26, 2024Observed: 2.52 ft at 6:45AM Apr 26, 2024Observed: 2.51 ft at 7:00AM Apr 26, 2024Observed: 2.51 ft at 7:15AM Apr 26, 2024Observed: 2.5 ft at 7:30AM Apr 26, 2024Observed: 2.51 ft at 7:45AM Apr 26, 2024Observed: 2.52 ft at 8:00AM Apr 26, 2024Observed: 2.51 ft at 8:15AM Apr 26, 2024Observed: 2.51 ft at 8:30AM Apr 26, 2024Observed: 2.51 ft at 8:45AM Apr 26, 2024Observed: 2.51 ft at 9:00AM Apr 26, 2024Observed: 2.52 ft at 9:15AM Apr 26, 2024Observed: 2.5 ft at 9:30AM Apr 26, 2024Observed: 2.51 ft at 9:45AM Apr 26, 2024Observed: 2.51 ft at 10:00AM Apr 26, 2024Observed: 2.5 ft at 10:15AM Apr 26, 2024Observed: 2.51 ft at 10:30AM Apr 26, 2024Observed: 2.52 ft at 10:45AM Apr 26, 2024Observed: 2.51 ft at 11:00AM Apr 26, 2024Observed: 2.51 ft at 11:15AM Apr 26, 2024Highest Observation: 2.53 ft at 11:30AM Apr 26, 2024Observed: 2.52 ft at 11:45AM Apr 26, 2024Highest Observation: 2.53 ft at 12:00PM Apr 26, 2024Observed: 2.51 ft at 12:15PM Apr 26, 2024Observed: 2.52 ft at 12:30PM Apr 26, 2024Observed: 2.52 ft at 12:45PM Apr 26, 2024Observed: 2.51 ft at 1:00PM Apr 26, 2024Observed: 2.52 ft at 1:15PM Apr 26, 2024Observed: 2.51 ft at 1:30PM Apr 26, 2024Observed: 2.5 ft at 1:45PM Apr 26, 2024Observed: 2.5 ft at 2:00PM Apr 26, 2024Observed: 2.5 ft at 2:15PM Apr 26, 2024Observed: 2.51 ft at 2:30PM Apr 26, 2024Observed: 2.37 ft at 2:45PM Apr 26, 2024Observed: 2.34 ft at 3:00PM Apr 26, 2024Observed: 2.32 ft at 3:15PM Apr 26, 2024Observed: 2.31 ft at 3:30PM Apr 26, 2024Observed: 2.31 ft at 3:45PM Apr 26, 2024Observed: 2.29 ft at 4:00PM Apr 26, 2024Observed: 2.29 ft at 4:15PM Apr 26, 2024Observed: 2.32 ft at 4:30PM Apr 26, 2024Observed: 2.31 ft at 4:45PM Apr 26, 2024Observed: 2.3 ft at 5:00PM Apr 26, 2024Observed: 2.31 ft at 5:15PM Apr 26, 2024Observed: 2.32 ft at 5:30PM Apr 26, 2024Observed: 2.31 ft at 5:45PM Apr 26, 2024Observed: 2.3 ft at 6:00PM Apr 26, 2024Observed: 2.3 ft at 6:15PM Apr 26, 2024Observed: 2.3 ft at 6:30PM Apr 26, 2024Observed: 2.29 ft at 6:45PM Apr 26, 2024Observed: 2.28 ft at 7:00PM Apr 26, 2024Observed: 2.28 ft at 7:15PM Apr 26, 2024Observed: 2.27 ft at 7:30PM Apr 26, 2024Observed: 2.27 ft at 7:45PM Apr 26, 2024Observed: 2.27 ft at 8:00PM Apr 26, 2024Observed: 2.26 ft at 8:15PM Apr 26, 2024Observed: 2.26 ft at 8:30PM Apr 26, 2024Observed: 2.25 ft at 8:45PM Apr 26, 2024Observed: 2.24 ft at 9:00PM Apr 26, 2024Observed: 2.23 ft at 9:15PM Apr 26, 2024Observed: 2.24 ft at 9:30PM Apr 26, 2024Observed: 2.23 ft at 9:45PM Apr 26, 2024Observed: 2.23 ft at 10:00PM Apr 26, 2024Observed: 2.22 ft at 10:15PM Apr 26, 2024Observed: 2.21 ft at 10:30PM Apr 26, 2024Observed: 2.22 ft at 10:45PM Apr 26, 2024Observed: 2.21 ft at 11:00PM Apr 26, 2024Observed: 2.21 ft at 11:15PM Apr 26, 2024Observed: 2.21 ft at 11:30PM Apr 26, 2024Observed: 2.21 ft at 11:45PM Apr 26, 2024Observed: 2.21 ft at 12:00AM Apr 27, 2024Observed: 2.22 ft at 12:15AM Apr 27, 2024Observed: 2.21 ft at 12:30AM Apr 27, 2024Observed: 2.2 ft at 12:45AM Apr 27, 2024Observed: 2.19 ft at 1:00AM Apr 27, 2024Observed: 2.19 ft at 1:15AM Apr 27, 2024Observed: 2.2 ft at 1:30AM Apr 27, 2024Observed: 2.2 ft at 1:45AM Apr 27, 2024Observed: 2.18 ft at 2:00AM Apr 27, 2024Observed: 2.18 ft at 2:15AM Apr 27, 2024Observed: 2.19 ft at 2:30AM Apr 27, 2024Observed: 2.18 ft at 2:45AM Apr 27, 2024Observed: 2.17 ft at 3:00AM Apr 27, 2024Observed: 2.17 ft at 3:15AM Apr 27, 2024Observed: 2.16 ft at 3:30AM Apr 27, 2024Observed: 2.15 ft at 3:45AM Apr 27, 2024Observed: 2.14 ft at 4:00AM Apr 27, 2024Observed: 2.15 ft at 4:15AM Apr 27, 2024Observed: 2.16 ft at 4:30AM Apr 27, 2024Observed: 2.16 ft at 4:45AM Apr 27, 2024Observed: 2.16 ft at 5:00AM Apr 27, 2024Observed: 2.15 ft at 5:15AM Apr 27, 2024Observed: 2.15 ft at 5:30AM Apr 27, 2024Observed: 2.15 ft at 5:45AM Apr 27, 2024Observed: 2.13 ft at 6:00AM Apr 27, 2024Observed: 2.13 ft at 6:15AM Apr 27, 2024Observed: 2.14 ft at 6:30AM Apr 27, 2024Observed: 2.13 ft at 6:45AM Apr 27, 2024Observed: 2.11 ft at 7:00AM Apr 27, 2024Observed: 2.11 ft at 7:15AM Apr 27, 2024Observed: 2.1 ft at 7:30AM Apr 27, 2024Observed: 2.09 ft at 7:45AM Apr 27, 2024Observed: 2.09 ft at 8:00AM Apr 27, 2024Observed: 2.09 ft at 8:15AM Apr 27, 2024Observed: 2.08 ft at 8:30AM Apr 27, 2024Observed: 2.08 ft at 8:45AM Apr 27, 2024Observed: 2.06 ft at 9:00AM Apr 27, 2024Observed: 2.04 ft at 9:15AM Apr 27, 2024Observed: 2.05 ft at 9:30AM Apr 27, 2024Observed: 2.03 ft at 9:45AM Apr 27, 2024Observed: 1.96 ft at 10:00AM Apr 27, 2024Observed: 1.84 ft at 10:15AM Apr 27, 2024Observed: 1.81 ft at 10:30AM Apr 27, 2024Observed: 1.8 ft at 10:45AM Apr 27, 2024Observed: 1.78 ft at 11:00AM Apr 27, 2024Observed: 1.75 ft at 11:15AM Apr 27, 2024Observed: 1.72 ft at 11:30AM Apr 27, 2024Observed: 1.71 ft at 11:45AM Apr 27, 2024Observed: 1.7 ft at 12:00PM Apr 27, 2024Observed: 1.68 ft at 12:15PM Apr 27, 2024Observed: 1.69 ft at 12:30PM Apr 27, 2024Observed: 1.68 ft at 12:45PM Apr 27, 2024Observed: 1.66 ft at 1:00PM Apr 27, 2024Observed: 1.65 ft at 1:15PM Apr 27, 2024Observed: 1.67 ft at 1:30PM Apr 27, 2024Observed: 1.64 ft at 1:45PM Apr 27, 2024Observed: 1.62 ft at 2:00PM Apr 27, 2024Observed: 1.63 ft at 2:15PM Apr 27, 2024Observed: 1.63 ft at 2:30PM Apr 27, 2024Observed: 1.63 ft at 2:45PM Apr 27, 2024Observed: 1.61 ft at 3:00PM Apr 27, 2024Observed: 1.6 ft at 3:15PM Apr 27, 2024Observed: 1.6 ft at 3:30PM Apr 27, 2024Observed: 1.59 ft at 3:45PM Apr 27, 2024Observed: 1.58 ft at 4:00PM Apr 27, 2024Observed: 1.58 ft at 4:15PM Apr 27, 2024Observed: 1.57 ft at 4:30PM Apr 27, 2024Observed: 1.58 ft at 4:45PM Apr 27, 2024Observed: 1.54 ft at 5:00PM Apr 27, 2024Observed: 1.55 ft at 5:15PM Apr 27, 2024Observed: 1.56 ft at 5:30PM Apr 27, 2024Observed: 1.56 ft at 5:45PM Apr 27, 2024Observed: 1.56 ft at 6:00PM Apr 27, 2024Observed: 1.55 ft at 6:15PM Apr 27, 2024Observed: 1.55 ft at 6:30PM Apr 27, 2024Observed: 1.55 ft at 6:45PM Apr 27, 2024Observed: 1.54 ft at 7:00PM Apr 27, 2024Observed: 1.54 ft at 7:15PM Apr 27, 2024Observed: 1.53 ft at 7:30PM Apr 27, 2024Observed: 1.53 ft at 7:45PM Apr 27, 2024Observed: 1.54 ft at 8:00PM Apr 27, 2024Observed: 1.54 ft at 8:15PM Apr 27, 2024Observed: 1.55 ft at 8:30PM Apr 27, 2024Observed: 1.54 ft at 8:45PM Apr 27, 2024Observed: 1.54 ft at 9:00PM Apr 27, 2024Observed: 1.55 ft at 9:15PM Apr 27, 2024Observed: 1.55 ft at 9:30PM Apr 27, 2024Observed: 1.54 ft at 9:45PM Apr 27, 2024Observed: 1.55 ft at 10:00PM Apr 27, 2024Observed: 1.55 ft at 10:15PM Apr 27, 2024Observed: 1.55 ft at 10:30PM Apr 27, 2024Observed: 1.56 ft at 10:45PM Apr 27, 2024Observed: 1.54 ft at 11:00PM Apr 27, 2024Observed: 1.54 ft at 11:15PM Apr 27, 2024Observed: 1.54 ft at 11:30PM Apr 27, 2024Observed: 1.54 ft at 11:45PM Apr 27, 2024Observed: 1.54 ft at 12:00AM Apr 28, 2024Observed: 1.55 ft at 12:15AM Apr 28, 2024Observed: 1.54 ft at 12:30AM Apr 28, 2024Observed: 1.54 ft at 12:45AM Apr 28, 2024Observed: 1.55 ft at 1:00AM Apr 28, 2024Observed: 1.54 ft at 1:15AM Apr 28, 2024Observed: 1.55 ft at 1:30AM Apr 28, 2024Observed: 1.55 ft at 1:45AM Apr 28, 2024Observed: 1.55 ft at 2:00AM Apr 28, 2024Observed: 1.55 ft at 2:15AM Apr 28, 2024Observed: 1.55 ft at 2:30AM Apr 28, 2024Observed: 1.55 ft at 2:45AM Apr 28, 2024Observed: 1.55 ft at 3:00AM Apr 28, 2024Observed: 1.55 ft at 3:15AM Apr 28, 2024Observed: 1.56 ft at 3:30AM Apr 28, 2024Observed: 1.57 ft at 3:45AM Apr 28, 2024Observed: 1.57 ft at 4:00AM Apr 28, 2024Observed: 1.57 ft at 4:15AM Apr 28, 2024Observed: 1.58 ft at 4:30AM Apr 28, 2024Observed: 1.59 ft at 4:45AM Apr 28, 2024Observed: 1.59 ft at 5:00AM Apr 28, 2024Observed: 1.59 ft at 5:15AM Apr 28, 2024Observed: 1.59 ft at 5:30AM Apr 28, 2024Observed: 1.59 ft at 5:45AM Apr 28, 2024Observed: 1.6 ft at 6:00AM Apr 28, 2024Observed: 1.6 ft at 6:15AM Apr 28, 2024Observed: 1.6 ft at 6:30AM Apr 28, 2024Observed: 1.6 ft at 6:45AM Apr 28, 2024Observed: 1.6 ft at 7:00AM Apr 28, 2024Observed: 1.6 ft at 7:15AM Apr 28, 2024Observed: 1.6 ft at 7:30AM Apr 28, 2024Observed: 1.6 ft at 7:45AM Apr 28, 2024Observed: 1.6 ft at 8:00AM Apr 28, 2024Observed: 1.61 ft at 8:15AM Apr 28, 2024Observed: 1.61 ft at 8:30AM Apr 28, 2024Observed: 1.61 ft at 8:45AM Apr 28, 2024Observed: 1.61 ft at 9:00AM Apr 28, 2024Observed: 1.62 ft at 9:15AM Apr 28, 2024Observed: 1.62 ft at 9:30AM Apr 28, 2024Observed: 1.62 ft at 9:45AM Apr 28, 2024Observed: 1.63 ft at 10:00AM Apr 28, 2024Observed: 1.63 ft at 10:15AM Apr 28, 2024Observed: 1.62 ft at 10:30AM Apr 28, 2024Observed: 1.63 ft at 10:45AM Apr 28, 2024Observed: 1.62 ft at 11:00AM Apr 28, 2024Observed: 1.63 ft at 11:15AM Apr 28, 2024Observed: 1.64 ft at 11:30AM Apr 28, 2024Observed: 1.63 ft at 11:45AM Apr 28, 2024Observed: 1.63 ft at 12:00PM Apr 28, 2024Observed: 1.64 ft at 12:15PM Apr 28, 2024Observed: 1.64 ft at 12:30PM Apr 28, 2024Observed: 1.64 ft at 12:45PM Apr 28, 2024Observed: 1.64 ft at 1:00PM Apr 28, 2024Observed: 1.65 ft at 1:15PM Apr 28, 2024Observed: 1.65 ft at 1:30PM Apr 28, 2024Observed: 1.65 ft at 1:45PM Apr 28, 2024Observed: 1.66 ft at 2:00PM Apr 28, 2024Observed: 1.66 ft at 2:15PM Apr 28, 2024Observed: 1.66 ft at 2:30PM Apr 28, 2024Observed: 1.67 ft at 2:45PM Apr 28, 2024Observed: 1.66 ft at 3:00PM Apr 28, 2024Observed: 1.67 ft at 3:15PM Apr 28, 2024Observed: 1.67 ft at 3:30PM Apr 28, 2024Observed: 1.67 ft at 3:45PM Apr 28, 2024Observed: 1.66 ft at 4:00PM Apr 28, 2024Observed: 1.66 ft at 4:15PM Apr 28, 2024Observed: 1.67 ft at 4:30PM Apr 28, 2024Observed: 1.67 ft at 4:45PM Apr 28, 2024Observed: 1.66 ft at 5:00PM Apr 28, 2024Observed: 1.66 ft at 5:15PM Apr 28, 2024Observed: 1.66 ft at 5:30PM Apr 28, 2024Observed: 1.67 ft at 5:45PM Apr 28, 2024Observed: 1.66 ft at 6:00PM Apr 28, 2024Observed: 1.66 ft at 6:15PM Apr 28, 2024Observed: 1.65 ft at 6:30PM Apr 28, 2024Observed: 1.66 ft at 6:45PM Apr 28, 2024Observed: 1.68 ft at 7:00PM Apr 28, 2024Observed: 1.68 ft at 7:15PM Apr 28, 2024Observed: 1.68 ft at 7:30PM Apr 28, 2024Observed: 1.69 ft at 7:45PM Apr 28, 2024Observed: 1.69 ft at 8:00PM Apr 28, 2024Observed: 1.69 ft at 8:15PM Apr 28, 2024Observed: 1.7 ft at 8:30PM Apr 28, 2024Observed: 1.69 ft at 8:45PM Apr 28, 2024Observed: 1.69 ft at 9:00PM Apr 28, 2024Observed: 1.69 ft at 9:15PM Apr 28, 2024Observed: 1.69 ft at 9:30PM Apr 28, 2024Observed: 1.69 ft at 9:45PM Apr 28, 2024Observed: 1.69 ft at 10:00PM Apr 28, 2024Observed: 1.69 ft at 10:15PM Apr 28, 2024Observed: 1.69 ft at 10:30PM Apr 28, 2024Observed: 1.68 ft at 10:45PM Apr 28, 2024Observed: 1.69 ft at 11:00PM Apr 28, 2024Observed: 1.69 ft at 11:15PM Apr 28, 2024Observed: 1.69 ft at 11:30PM Apr 28, 2024Observed: 1.69 ft at 11:45PM Apr 28, 2024Observed: 1.69 ft at 12:00AM Apr 29, 2024Observed: 1.69 ft at 12:15AM Apr 29, 2024Observed: 1.69 ft at 12:30AM Apr 29, 2024Observed: 1.69 ft at 12:45AM Apr 29, 2024Observed: 1.69 ft at 1:00AM Apr 29, 2024Observed: 1.69 ft at 1:15AM Apr 29, 2024Observed: 1.69 ft at 1:30AM Apr 29, 2024Observed: 1.69 ft at 1:45AM Apr 29, 2024Observed: 1.7 ft at 2:00AM Apr 29, 2024Observed: 1.7 ft at 2:15AM Apr 29, 2024Observed: 1.7 ft at 2:30AM Apr 29, 2024Observed: 1.71 ft at 2:45AM Apr 29, 2024Observed: 1.71 ft at 3:00AM Apr 29, 2024Observed: 1.71 ft at 3:15AM Apr 29, 2024Observed: 1.7 ft at 3:30AM Apr 29, 2024Observed: 1.7 ft at 3:45AM Apr 29, 2024Observed: 1.7 ft at 4:00AM Apr 29, 2024Observed: 1.71 ft at 4:15AM Apr 29, 2024Observed: 1.7 ft at 4:30AM Apr 29, 2024Observed: 1.7 ft at 4:45AM Apr 29, 2024Observed: 1.7 ft at 5:00AM Apr 29, 2024Observed: 1.7 ft at 5:15AM Apr 29, 2024Observed: 1.7 ft at 5:30AM Apr 29, 2024Observed: 1.71 ft at 5:45AM Apr 29, 2024Observed: 1.72 ft at 6:00AM Apr 29, 2024Observed: 1.72 ft at 6:15AM Apr 29, 2024Observed: 1.72 ft at 6:30AM Apr 29, 2024Observed: 1.72 ft at 6:45AM Apr 29, 2024Observed: 1.73 ft at 7:00AM Apr 29, 2024Observed: 1.73 ft at 7:15AM Apr 29, 2024Observed: 1.73 ft at 7:30AM Apr 29, 2024Observed: 1.73 ft at 7:45AM Apr 29, 2024Observed: 1.72 ft at 8:00AM Apr 29, 2024Observed: 1.74 ft at 8:15AM Apr 29, 2024Observed: 1.74 ft at 8:30AM Apr 29, 2024Observed: 1.74 ft at 8:45AM Apr 29, 2024Observed: 1.73 ft at 9:00AM Apr 29, 2024Observed: 1.81 ft at 9:15AM Apr 29, 2024Observed: 1.81 ft at 9:30AM Apr 29, 2024Observed: 1.81 ft at 9:45AM Apr 29, 2024Observed: 1.8 ft at 10:00AM Apr 29, 2024Observed: 1.8 ft at 10:15AM Apr 29, 2024Observed: 1.82 ft at 10:30AM Apr 29, 2024Observed: 1.82 ft at 10:45AM Apr 29, 2024Observed: 1.82 ft at 11:00AM Apr 29, 2024Observed: 1.82 ft at 11:15AM Apr 29, 2024Observed: 1.81 ft at 11:30AM Apr 29, 2024Observed: 1.81 ft at 11:45AM Apr 29, 2024Observed: 1.82 ft at 12:00PM Apr 29, 2024Observed: 1.86 ft at 12:15PM Apr 29, 2024Observed: 1.86 ft at 12:30PM Apr 29, 2024Observed: 1.87 ft at 12:45PM Apr 29, 2024Observed: 1.88 ft at 1:00PM Apr 29, 2024Observed: 1.9 ft at 1:15PM Apr 29, 2024Observed: 1.9 ft at 1:30PM Apr 29, 2024Observed: 1.91 ft at 1:45PM Apr 29, 2024Observed: 1.91 ft at 2:00PM Apr 29, 2024Observed: 1.92 ft at 2:15PM Apr 29, 2024Observed: 1.91 ft at 2:30PM Apr 29, 2024Observed: 1.91 ft at 2:45PM Apr 29, 2024Observed: 1.93 ft at 3:00PM Apr 29, 2024Observed: 1.92 ft at 3:15PM Apr 29, 2024Observed: 1.93 ft at 3:30PM Apr 29, 2024Observed: 1.92 ft at 3:45PM Apr 29, 2024Observed: 1.94 ft at 4:00PM Apr 29, 2024Observed: 1.95 ft at 4:15PM Apr 29, 2024Observed: 1.94 ft at 4:30PM Apr 29, 2024Observed: 1.95 ft at 4:45PM Apr 29, 2024Observed: 1.95 ft at 5:00PM Apr 29, 2024Observed: 1.95 ft at 5:15PM Apr 29, 2024Observed: 1.96 ft at 5:30PM Apr 29, 2024Observed: 1.96 ft at 5:45PM Apr 29, 2024Observed: 1.97 ft at 6:00PM Apr 29, 2024Observed: 1.96 ft at 6:15PM Apr 29, 2024Observed: 1.96 ft at 6:30PM Apr 29, 2024Observed: 1.97 ft at 6:45PM Apr 29, 2024Observed: 1.98 ft at 7:00PM Apr 29, 2024Observed: 1.99 ft at 7:15PM Apr 29, 2024Observed: 1.98 ft at 7:30PM Apr 29, 2024Observed: 1.98 ft at 7:45PM Apr 29, 2024Observed: 1.99 ft at 8:00PM Apr 29, 2024Observed: 2 ft at 8:15PM Apr 29, 2024Observed: 1.99 ft at 8:30PM Apr 29, 2024Observed: 1.99 ft at 8:45PM Apr 29, 2024Observed: 2.01 ft at 9:00PM Apr 29, 2024Observed: 2.02 ft at 9:15PM Apr 29, 2024Observed: 2.02 ft at 9:30PM Apr 29, 2024Observed: 2.02 ft at 9:45PM Apr 29, 2024Observed: 2.03 ft at 10:00PM Apr 29, 2024Observed: 2.03 ft at 10:15PM Apr 29, 2024Observed: 2.04 ft at 10:30PM Apr 29, 2024Observed: 2.05 ft at 10:45PM Apr 29, 2024Observed: 2.05 ft at 11:00PM Apr 29, 2024Observed: 2.05 ft at 11:15PM Apr 29, 2024Observed: 2.06 ft at 11:30PM Apr 29, 2024Observed: 2.06 ft at 11:45PM Apr 29, 2024Observed: 2.07 ft at 12:00AM Apr 30, 2024Observed: 2.07 ft at 12:15AM Apr 30, 2024Observed: 2.07 ft at 12:30AM Apr 30, 2024Observed: 2.08 ft at 12:45AM Apr 30, 2024Observed: 2.08 ft at 1:00AM Apr 30, 2024Observed: 2.08 ft at 1:15AM Apr 30, 2024Observed: 2.09 ft at 1:30AM Apr 30, 2024Observed: 2.1 ft at 1:45AM Apr 30, 2024Observed: 2.1 ft at 2:00AM Apr 30, 2024Observed: 2.1 ft at 2:15AM Apr 30, 2024Observed: 2.1 ft at 2:30AM Apr 30, 2024Observed: 2.11 ft at 2:45AM Apr 30, 2024Observed: 2.11 ft at 3:00AM Apr 30, 2024Observed: 2.11 ft at 3:15AM Apr 30, 2024Observed: 2.11 ft at 3:30AM Apr 30, 2024Observed: 2.11 ft at 3:45AM Apr 30, 2024Observed: 2.12 ft at 4:00AM Apr 30, 2024Observed: 2.13 ft at 4:15AM Apr 30, 2024Observed: 2.13 ft at 4:30AM Apr 30, 2024Observed: 2.13 ft at 4:45AM Apr 30, 2024Observed: 2.13 ft at 5:00AM Apr 30, 2024Observed: 2.13 ft at 5:15AM Apr 30, 2024Observed: 2.13 ft at 5:30AM Apr 30, 2024Observed: 2.14 ft at 5:45AM Apr 30, 2024Observed: 2.14 ft at 6:00AM Apr 30, 2024Observed: 2.14 ft at 6:15AM Apr 30, 2024Observed: 2.14 ft at 6:30AM Apr 30, 2024Observed: 2.14 ft at 6:45AM Apr 30, 2024Observed: 2.14 ft at 7:00AM Apr 30, 2024Observed: 2.14 ft at 7:15AM Apr 30, 2024Observed: 2.15 ft at 7:30AM Apr 30, 2024Observed: 2.15 ft at 7:45AM Apr 30, 2024Observed: 2.14 ft at 8:00AM Apr 30, 2024Observed: 2.15 ft at 8:15AM Apr 30, 2024Observed: 2.15 ft at 8:30AM Apr 30, 2024Observed: 2.19 ft at 8:45AM Apr 30, 2024Observed: 2.18 ft at 9:00AM Apr 30, 2024Observed: 2.24 ft at 9:15AM Apr 30, 2024Observed: 2.28 ft at 9:30AM Apr 30, 2024Observed: 2.28 ft at 9:45AM Apr 30, 2024Observed: 2.3 ft at 10:00AM Apr 30, 2024Observed: 2.3 ft at 10:15AM Apr 30, 2024Observed: 2.32 ft at 10:30AM Apr 30, 2024Observed: 2.32 ft at 10:45AM Apr 30, 2024Observed: 2.28 ft at 11:00AM Apr 30, 2024Observed: 2.33 ft at 11:15AM Apr 30, 2024Observed: 2.37 ft at 11:30AM Apr 30, 2024Observed: 2.34 ft at 11:45AM Apr 30, 2024Observed: 2.34 ft at 12:00PM Apr 30, 2024Observed: 2.35 ft at 12:15PM Apr 30, 2024Observed: 2.35 ft at 12:30PM Apr 30, 2024Observed: 2.35 ft at 12:45PM Apr 30, 2024Observed: 2.36 ft at 1:00PM Apr 30, 2024Observed: 2.35 ft at 1:15PM Apr 30, 2024Observed: 2.36 ft at 2:30PM Apr 30, 2024Observed: 2.36 ft at 2:45PM Apr 30, 2024Observed: 2.37 ft at 3:00PM Apr 30, 2024Observed: 2.37 ft at 3:15PM Apr 30, 2024Observed: 2.38 ft at 3:30PM Apr 30, 2024Observed: 2.38 ft at 3:45PM Apr 30, 2024Observed: 2.38 ft at 4:00PM Apr 30, 2024Observed: 2.39 ft at 4:15PM Apr 30, 2024Observed: 2.39 ft at 4:30PM Apr 30, 2024Observed: 2.38 ft at 4:45PM Apr 30, 2024Observed: 2.4 ft at 5:00PM Apr 30, 2024Observed: 2.41 ft at 5:15PM Apr 30, 2024Observed: 2.41 ft at 5:30PM Apr 30, 2024Observed: 2.41 ft at 5:45PM Apr 30, 2024Observed: 2.42 ft at 6:00PM Apr 30, 2024Observed: 2.42 ft at 6:15PM Apr 30, 2024Observed: 2.43 ft at 6:30PM Apr 30, 2024Observed: 2.43 ft at 6:45PM Apr 30, 2024Observed: 2.44 ft at 7:00PM Apr 30, 2024Observed: 2.43 ft at 7:15PM Apr 30, 2024Observed: 2.44 ft at 7:30PM Apr 30, 2024Observed: 2.44 ft at 7:45PM Apr 30, 2024Observed: 2.44 ft at 8:00PM Apr 30, 2024Observed: 2.45 ft at 8:15PM Apr 30, 2024Observed: 2.44 ft at 8:30PM Apr 30, 2024Observed: 2.44 ft at 8:45PM Apr 30, 2024Observed: 2.45 ft at 9:00PM Apr 30, 2024Observed: 2.45 ft at 9:15PM Apr 30, 2024Observed: 2.46 ft at 9:30PM Apr 30, 2024Observed: 2.45 ft at 9:45PM Apr 30, 2024Observed: 2.46 ft at 10:00PM Apr 30, 2024Observed: 2.46 ft at 10:15PM Apr 30, 2024Observed: 2.46 ft at 10:30PM Apr 30, 2024Observed: 2.47 ft at 10:45PM Apr 30, 2024Observed: 2.47 ft at 11:00PM Apr 30, 2024Observed: 2.48 ft at 11:15PM Apr 30, 2024Observed: 2.48 ft at 11:30PM Apr 30, 2024Observed: 2.49 ft at 11:45PM Apr 30, 2024Observed: 2.49 ft at 12:00AM May 01, 2024Observed: 2.5 ft at 12:15AM May 01, 2024Observed: 2.5 ft at 12:30AM May 01, 2024Observed: 2.51 ft at 12:45AM May 01, 2024Observed: 2.51 ft at 1:00AM May 01, 2024Observed: 2.51 ft at 1:15AM May 01, 2024Observed: 2.51 ft at 1:30AM May 01, 2024Observed: 2.52 ft at 1:45AM May 01, 2024Observed: 2.52 ft at 2:00AM May 01, 2024Observed: 2.52 ft at 2:15AM May 01, 2024Highest Observation: 2.53 ft at 2:30AM May 01, 2024Observed: 2.52 ft at 2:45AM May 01, 2024Observed: 2.51 ft at 3:00AM May 01, 2024Observed: 2.52 ft at 3:15AM May 01, 2024Observed: 2.5 ft at 3:30AM May 01, 2024Observed: 2.5 ft at 3:45AM May 01, 2024Observed: 2.5 ft at 4:00AM May 01, 2024Observed: 2.5 ft at 4:15AM May 01, 2024Observed: 2.49 ft at 4:30AM May 01, 2024Observed: 2.49 ft at 4:45AM May 01, 2024Observed: 2.48 ft at 5:00AM May 01, 2024Observed: 2.48 ft at 5:15AM May 01, 2024Observed: 2.48 ft at 5:30AM May 01, 2024Observed: 2.48 ft at 5:45AM May 01, 2024Observed: 2.49 ft at 6:00AM May 01, 2024Observed: 2.48 ft at 6:15AM May 01, 2024Observed: 2.47 ft at 6:30AM May 01, 2024Observed: 2.47 ft at 6:45AM May 01, 2024Observed: 2.48 ft at 7:00AM May 01, 2024Observed: 2.48 ft at 7:15AM May 01, 2024Observed: 2.49 ft at 7:30AM May 01, 2024Observed: 2.48 ft at 7:45AM May 01, 2024Observed: 2.47 ft at 8:00AM May 01, 2024Observed: 2.49 ft at 8:15AM May 01, 2024Observed: 2.49 ft at 8:30AM May 01, 2024Observed: 2.48 ft at 8:45AM May 01, 2024Observed: 2.48 ft at 9:00AM May 01, 2024Observed: 2.49 ft at 9:15AM May 01, 2024Observed: 2.47 ft at 9:30AM May 01, 2024Observed: 2.46 ft at 9:45AM May 01, 2024Observed: 2.46 ft at 10:00AM May 01, 2024Observed: 2.47 ft at 10:15AM May 01, 2024Observed: 2.45 ft at 10:30AM May 01, 2024Observed: 2.41 ft at 10:45AM May 01, 2024Observed: 2.46 ft at 11:00AM May 01, 2024Observed: 2.46 ft at 11:15AM May 01, 2024Observed: 2.45 ft at 11:30AM May 01, 2024Observed: 2.46 ft at 11:45AM May 01, 2024Observed: 2.44 ft at 12:00PM May 01, 2024Observed: 2.45 ft at 12:15PM May 01, 2024Observed: 2.47 ft at 12:30PM May 01, 2024Observed: 2.45 ft at 12:45PM May 01, 2024Observed: 2.44 ft at 1:00PM May 01, 2024Observed: 2.44 ft at 1:15PM May 01, 2024Observed: 2.39 ft at 1:30PM May 01, 2024Observed: 2.51 ft at 1:45PM May 01, 2024Observed: 2.45 ft at 2:00PM May 01, 2024Observed: 2.46 ft at 2:15PM May 01, 2024Observed: 2.46 ft at 2:30PM May 01, 2024Observed: 2.47 ft at 2:45PM May 01, 2024Observed: 2.47 ft at 3:00PM May 01, 2024Observed: 2.5 ft at 3:15PM May 01, 2024Observed: 2.46 ft at 3:30PM May 01, 2024Observed: 2.47 ft at 3:45PM May 01, 2024Observed: 2.47 ft at 4:00PM May 01, 2024Observed: 2.48 ft at 4:15PM May 01, 2024Observed: 2.48 ft at 4:30PM May 01, 2024Observed: 2.45 ft at 4:45PM May 01, 2024Observed: 2.49 ft at 5:00PM May 01, 2024Observed: 2.48 ft at 5:15PM May 01, 2024USGS--Water Resources of the United StatesMHYI2(plotting HTIRG) Graph Created (6:41PM May 1, 2024)ObservedLatest observed value: 2.48 ft at 5:15 PM CDT 1-May-2024. Flood Stage is 4 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts are not available for the Fox River at McHenry (Stratton Lock and Dam) tailwater. Only observed stages are available for this point.
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Upstream Gauge - near Johnsburg Upstream Gauge Downstream Gauge Downstream Gauge - at Algonquin
Flood Categories (in feet)
Major Flood Stage: 7
Moderate Flood Stage: 6
Flood Stage: 4
Action Stage: 3
Low Stage (in feet): 0.5

Historic Crests
(1) 7.65 ft on 07/22/2017
(2) 7.64 ft on 04/23/2013
(3) 7.50 ft on 04/05/1960 (P)
(4) 7.20 ft on 10/02/1986
(5) 7.04 ft on 04/02/1979
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 6.20 ft on 05/23/2020
(2) 5.49 ft on 05/04/2020
(3) 5.93 ft on 10/08/2019
(4) 6.43 ft on 09/17/2019
(5) 4.93 ft on 06/01/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.01 ft on 10/06/2012
(2) 0.25 ft on 09/15/2011
(3) 0.35 ft on 09/04/2003
(4) 0.37 ft on 08/28/2013
(5) 0.41 ft on 08/10/2005
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:15
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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
12 McHenry Waste Water Treatment Plant property is threatened. Miller Road is threatened west of the river in McHenry.
11 Multiple structures along the river are threatened in downtown McHenry. River Road is threatened at IL-120 (Elm Street) in McHenry.
10.5 IL-176 is threatened near Holiday Hills.
9 Country Club Drive, Emerald Drive, and River Road near Chapel Hill Road are threatened in McHenry.
8.5 Residences threatened along Country Club Drive and Emerald Drive in McHenry. Roadways threatened at Miller Riverfront Park in McHenry.
8 Residences along River Road are threatened near Mary Lane in McHenry. Backwater causes Boone Creek to threaten parking lots in downtown McHenry. Numerous marinas are threatened in McHenry.
7 Low-lying sections of Miller Riverfront Park inundated in McHenry.
6 Backwater causes Boone Creek to inundate sections of the McHenry river walk.
5.5 Water reaches bankfull along Country Club Drive and Emerald Drive in McHenry.
5 Roadways and structures may be threatened in Frisch's Riverside subdivision along Lagoon and River Shore Drives.
4.5 Roadways and structures may be threatened in the Holiday Hills subdivison along Holiday Drive.
3.5 Boathouses threatened along the river downstream of the dam.
3 Fox Waterway Agency considers "no wake" order for the Fox River from Algonquin Dam to Stratton Dam.
Low Water Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
0.0 River nears zero flow.
0.5 Approximate stage of the 1-in-10 annual chance flow (7-day average).
1.0 Low water levels begin to impact operations at Stratton and Algonquin Dams.
About This Location Collapse

Latitude: 42.309167° N, Longitude: 88.251389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 4 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 729.98 734.98 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:
Additional Information Collapse
Illinois DNR Office of Water Resources: Stratton Operations Update
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Hydrologic Resources Additional Resources
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
National Weather Service
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333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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