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Hydrograph River at a Glance Download
Fox River at McHenry (Stratton Lock and Dam) tailwater Tailwater (ft)Flow (kcfs)Observed: 0.79 ft at 8:00AM Apr 06, 2021Observed: 0.8 ft at 8:15AM Apr 06, 2021Observed: 0.8 ft at 8:30AM Apr 06, 2021Observed: 0.81 ft at 8:45AM Apr 06, 2021Observed: 0.75 ft at 9:00AM Apr 06, 2021Observed: 0.71 ft at 9:15AM Apr 06, 2021Observed: 0.73 ft at 9:30AM Apr 06, 2021Observed: 0.73 ft at 9:45AM Apr 06, 2021Observed: 0.73 ft at 10:00AM Apr 06, 2021Observed: 0.71 ft at 10:15AM Apr 06, 2021Observed: 0.69 ft at 10:30AM Apr 06, 2021Observed: 0.7 ft at 10:45AM Apr 06, 2021Observed: 0.7 ft at 11:00AM Apr 06, 2021Observed: 0.71 ft at 11:15AM Apr 06, 2021Observed: 0.72 ft at 11:30AM Apr 06, 2021Observed: 0.64 ft at 11:45AM Apr 06, 2021Observed: 0.73 ft at 12:00PM Apr 06, 2021Observed: 0.73 ft at 12:15PM Apr 06, 2021Observed: 0.69 ft at 12:30PM Apr 06, 2021Observed: 0.73 ft at 12:45PM Apr 06, 2021Observed: 0.73 ft at 1:00PM Apr 06, 2021Observed: 0.68 ft at 1:15PM Apr 06, 2021Observed: 0.76 ft at 1:30PM Apr 06, 2021Observed: 0.62 ft at 1:45PM Apr 06, 2021Observed: 0.78 ft at 2:00PM Apr 06, 2021Observed: 0.7 ft at 2:15PM Apr 06, 2021Observed: 0.73 ft at 2:30PM Apr 06, 2021Observed: 0.74 ft at 2:45PM Apr 06, 2021Observed: 0.74 ft at 3:00PM Apr 06, 2021Observed: 0.72 ft at 3:15PM Apr 06, 2021Observed: 0.72 ft at 3:30PM Apr 06, 2021Observed: 0.68 ft at 3:45PM Apr 06, 2021Observed: 0.67 ft at 4:00PM Apr 06, 2021Observed: 0.66 ft at 4:15PM Apr 06, 2021Observed: 0.68 ft at 4:30PM Apr 06, 2021Observed: 0.68 ft at 4:45PM Apr 06, 2021Observed: 0.67 ft at 5:00PM Apr 06, 2021Observed: 0.67 ft at 5:15PM Apr 06, 2021Observed: 0.67 ft at 5:30PM Apr 06, 2021Observed: 0.69 ft at 5:45PM Apr 06, 2021Observed: 0.67 ft at 6:00PM Apr 06, 2021Observed: 0.67 ft at 6:15PM Apr 06, 2021Observed: 0.66 ft at 6:30PM Apr 06, 2021Observed: 0.65 ft at 6:45PM Apr 06, 2021Observed: 0.65 ft at 7:00PM Apr 06, 2021Observed: 0.64 ft at 7:15PM Apr 06, 2021Observed: 0.64 ft at 7:30PM Apr 06, 2021Observed: 0.64 ft at 7:45PM Apr 06, 2021Observed: 0.64 ft at 8:00PM Apr 06, 2021Observed: 0.64 ft at 8:15PM Apr 06, 2021Observed: 0.64 ft at 8:30PM Apr 06, 2021Observed: 0.64 ft at 8:45PM Apr 06, 2021Observed: 0.63 ft at 9:00PM Apr 06, 2021Observed: 0.63 ft at 9:15PM Apr 06, 2021Observed: 0.63 ft at 9:30PM Apr 06, 2021Observed: 0.63 ft at 9:45PM Apr 06, 2021Observed: 0.63 ft at 10:00PM Apr 06, 2021Observed: 0.63 ft at 10:15PM Apr 06, 2021Observed: 0.63 ft at 10:30PM Apr 06, 2021Observed: 0.64 ft at 10:45PM Apr 06, 2021Observed: 0.64 ft at 11:00PM Apr 06, 2021Observed: 0.64 ft at 11:15PM Apr 06, 2021Observed: 0.64 ft at 11:30PM Apr 06, 2021Observed: 0.65 ft at 11:45PM Apr 06, 2021Observed: 0.65 ft at 12:00AM Apr 07, 2021Observed: 0.65 ft at 12:15AM Apr 07, 2021Observed: 0.65 ft at 12:30AM Apr 07, 2021Observed: 0.65 ft at 12:45AM Apr 07, 2021Observed: 0.66 ft at 1:00AM Apr 07, 2021Observed: 0.66 ft at 1:15AM Apr 07, 2021Observed: 0.66 ft at 1:30AM Apr 07, 2021Observed: 0.66 ft at 1:45AM Apr 07, 2021Observed: 0.67 ft at 2:00AM Apr 07, 2021Observed: 0.67 ft at 2:15AM Apr 07, 2021Observed: 0.67 ft at 2:30AM Apr 07, 2021Observed: 0.67 ft at 2:45AM Apr 07, 2021Observed: 0.67 ft at 3:00AM Apr 07, 2021Observed: 0.67 ft at 3:15AM Apr 07, 2021Observed: 0.67 ft at 3:30AM Apr 07, 2021Observed: 0.67 ft at 3:45AM Apr 07, 2021Observed: 0.68 ft at 4:00AM Apr 07, 2021Observed: 0.68 ft at 4:15AM Apr 07, 2021Observed: 0.68 ft at 4:30AM Apr 07, 2021Observed: 0.68 ft at 4:45AM Apr 07, 2021Observed: 0.68 ft at 5:00AM Apr 07, 2021Observed: 0.68 ft at 5:15AM Apr 07, 2021Observed: 0.69 ft at 5:30AM Apr 07, 2021Observed: 0.69 ft at 5:45AM Apr 07, 2021Observed: 0.69 ft at 6:00AM Apr 07, 2021Observed: 0.69 ft at 6:15AM Apr 07, 2021Observed: 0.7 ft at 6:30AM Apr 07, 2021Observed: 0.7 ft at 6:45AM Apr 07, 2021Observed: 0.71 ft at 7:00AM Apr 07, 2021Observed: 0.72 ft at 7:15AM Apr 07, 2021Observed: 0.73 ft at 7:30AM Apr 07, 2021Observed: 0.74 ft at 7:45AM Apr 07, 2021Observed: 0.74 ft at 8:00AM Apr 07, 2021Observed: 0.74 ft at 8:15AM Apr 07, 2021Observed: 0.75 ft at 8:30AM Apr 07, 2021Observed: 0.75 ft at 8:45AM Apr 07, 2021Observed: 0.76 ft at 9:00AM Apr 07, 2021Observed: 0.7 ft at 9:15AM Apr 07, 2021Observed: 0.72 ft at 9:30AM Apr 07, 2021Observed: 0.73 ft at 9:45AM Apr 07, 2021Observed: 0.73 ft at 10:00AM Apr 07, 2021Observed: 0.72 ft at 10:15AM Apr 07, 2021Observed: 0.72 ft at 10:30AM Apr 07, 2021Observed: 0.72 ft at 10:45AM Apr 07, 2021Observed: 0.74 ft at 11:00AM Apr 07, 2021Observed: 0.75 ft at 11:15AM Apr 07, 2021Observed: 0.73 ft at 11:30AM Apr 07, 2021Observed: 0.75 ft at 11:45AM Apr 07, 2021Observed: 0.74 ft at 12:00PM Apr 07, 2021Observed: 0.74 ft at 12:15PM Apr 07, 2021Observed: 0.73 ft at 12:30PM Apr 07, 2021Observed: 0.77 ft at 12:45PM Apr 07, 2021Observed: 0.74 ft at 1:00PM Apr 07, 2021Observed: 0.74 ft at 1:15PM Apr 07, 2021Observed: 0.75 ft at 1:30PM Apr 07, 2021Observed: 0.74 ft at 1:45PM Apr 07, 2021Observed: 0.78 ft at 2:00PM Apr 07, 2021Observed: 0.75 ft at 2:15PM Apr 07, 2021Observed: 0.73 ft at 2:30PM Apr 07, 2021Observed: 0.74 ft at 2:45PM Apr 07, 2021Observed: 0.71 ft at 3:00PM Apr 07, 2021Observed: 0.71 ft at 3:15PM Apr 07, 2021Observed: 0.71 ft at 3:30PM Apr 07, 2021Observed: 0.68 ft at 3:45PM Apr 07, 2021Observed: 0.7 ft at 4:00PM Apr 07, 2021Observed: 0.73 ft at 4:15PM Apr 07, 2021Observed: 0.68 ft at 4:30PM Apr 07, 2021Observed: 0.66 ft at 4:45PM Apr 07, 2021Observed: 0.67 ft at 5:00PM Apr 07, 2021Observed: 0.7 ft at 5:15PM Apr 07, 2021Observed: 0.71 ft at 5:30PM Apr 07, 2021Observed: 0.7 ft at 5:45PM Apr 07, 2021Observed: 0.67 ft at 6:00PM Apr 07, 2021Observed: 0.66 ft at 6:15PM Apr 07, 2021Observed: 0.67 ft at 6:30PM Apr 07, 2021Observed: 0.66 ft at 6:45PM Apr 07, 2021Observed: 0.66 ft at 7:00PM Apr 07, 2021Observed: 0.67 ft at 7:15PM Apr 07, 2021Observed: 0.67 ft at 7:30PM Apr 07, 2021Observed: 0.67 ft at 7:45PM Apr 07, 2021Observed: 0.68 ft at 8:00PM Apr 07, 2021Observed: 0.68 ft at 8:15PM Apr 07, 2021Observed: 0.67 ft at 8:30PM Apr 07, 2021Observed: 0.68 ft at 8:45PM Apr 07, 2021Observed: 0.68 ft at 9:00PM Apr 07, 2021Observed: 0.67 ft at 9:15PM Apr 07, 2021Observed: 0.67 ft at 9:30PM Apr 07, 2021Observed: 0.67 ft at 9:45PM Apr 07, 2021Observed: 0.68 ft at 10:00PM Apr 07, 2021Observed: 0.68 ft at 10:15PM Apr 07, 2021Observed: 0.68 ft at 10:30PM Apr 07, 2021Observed: 0.68 ft at 10:45PM Apr 07, 2021Observed: 0.68 ft at 11:00PM Apr 07, 2021Observed: 0.69 ft at 11:15PM Apr 07, 2021Observed: 0.69 ft at 11:30PM Apr 07, 2021Observed: 0.69 ft at 11:45PM Apr 07, 2021Observed: 0.69 ft at 12:00AM Apr 08, 2021Observed: 0.69 ft at 12:15AM Apr 08, 2021Observed: 0.71 ft at 12:30AM Apr 08, 2021Observed: 0.72 ft at 12:45AM Apr 08, 2021Observed: 0.73 ft at 1:00AM Apr 08, 2021Observed: 0.73 ft at 1:15AM Apr 08, 2021Observed: 0.72 ft at 1:30AM Apr 08, 2021Observed: 0.71 ft at 1:45AM Apr 08, 2021Observed: 0.71 ft at 2:00AM Apr 08, 2021Observed: 0.7 ft at 2:15AM Apr 08, 2021Observed: 0.69 ft at 2:30AM Apr 08, 2021Observed: 0.69 ft at 2:45AM Apr 08, 2021Observed: 0.7 ft at 3:00AM Apr 08, 2021Observed: 0.69 ft at 3:15AM Apr 08, 2021Observed: 0.69 ft at 3:30AM Apr 08, 2021Observed: 0.68 ft at 3:45AM Apr 08, 2021Observed: 0.68 ft at 4:00AM Apr 08, 2021Observed: 0.69 ft at 4:15AM Apr 08, 2021Observed: 0.69 ft at 4:30AM Apr 08, 2021Observed: 0.69 ft at 4:45AM Apr 08, 2021Observed: 0.69 ft at 5:00AM Apr 08, 2021Observed: 0.7 ft at 5:15AM Apr 08, 2021Observed: 0.7 ft at 5:30AM Apr 08, 2021Observed: 0.7 ft at 5:45AM Apr 08, 2021Observed: 0.71 ft at 6:00AM Apr 08, 2021Observed: 0.72 ft at 6:15AM Apr 08, 2021Observed: 0.72 ft at 6:30AM Apr 08, 2021Observed: 0.72 ft at 6:45AM Apr 08, 2021Observed: 0.72 ft at 7:00AM Apr 08, 2021Observed: 0.73 ft at 7:15AM Apr 08, 2021Observed: 0.73 ft at 7:30AM Apr 08, 2021Observed: 0.74 ft at 7:45AM Apr 08, 2021Observed: 0.74 ft at 8:00AM Apr 08, 2021Observed: 0.73 ft at 8:15AM Apr 08, 2021Observed: 0.74 ft at 8:30AM Apr 08, 2021Observed: 0.75 ft at 8:45AM Apr 08, 2021Observed: 0.76 ft at 9:00AM Apr 08, 2021Observed: 0.78 ft at 9:15AM Apr 08, 2021Observed: 0.78 ft at 9:30AM Apr 08, 2021Observed: 0.78 ft at 9:45AM Apr 08, 2021Observed: 0.78 ft at 10:00AM Apr 08, 2021Observed: 0.78 ft at 10:15AM Apr 08, 2021Observed: 0.77 ft at 10:30AM Apr 08, 2021Observed: 0.75 ft at 10:45AM Apr 08, 2021Observed: 0.75 ft at 11:00AM Apr 08, 2021Observed: 0.75 ft at 11:15AM Apr 08, 2021Observed: 0.74 ft at 11:30AM Apr 08, 2021Observed: 0.74 ft at 11:45AM Apr 08, 2021Observed: 0.74 ft at 12:00PM Apr 08, 2021Observed: 0.74 ft at 12:15PM Apr 08, 2021Observed: 0.74 ft at 12:30PM Apr 08, 2021Observed: 0.74 ft at 12:45PM Apr 08, 2021Observed: 0.73 ft at 1:00PM Apr 08, 2021Observed: 0.73 ft at 1:15PM Apr 08, 2021Observed: 0.73 ft at 1:30PM Apr 08, 2021Observed: 0.74 ft at 1:45PM Apr 08, 2021Observed: 0.74 ft at 2:00PM Apr 08, 2021Observed: 0.75 ft at 2:15PM Apr 08, 2021Observed: 0.76 ft at 2:30PM Apr 08, 2021Observed: 0.76 ft at 2:45PM Apr 08, 2021Observed: 0.77 ft at 3:00PM Apr 08, 2021Observed: 0.77 ft at 3:15PM Apr 08, 2021Observed: 0.76 ft at 3:30PM Apr 08, 2021Observed: 0.77 ft at 3:45PM Apr 08, 2021Observed: 0.77 ft at 4:00PM Apr 08, 2021Observed: 0.78 ft at 4:15PM Apr 08, 2021Observed: 0.78 ft at 4:30PM Apr 08, 2021Observed: 0.79 ft at 4:45PM Apr 08, 2021Observed: 0.79 ft at 5:00PM Apr 08, 2021Observed: 0.78 ft at 5:15PM Apr 08, 2021Observed: 0.78 ft at 5:30PM Apr 08, 2021Observed: 0.79 ft at 5:45PM Apr 08, 2021Observed: 0.79 ft at 6:00PM Apr 08, 2021Observed: 0.8 ft at 6:15PM Apr 08, 2021Observed: 0.8 ft at 6:30PM Apr 08, 2021Observed: 0.82 ft at 6:45PM Apr 08, 2021Observed: 0.82 ft at 7:00PM Apr 08, 2021Observed: 0.82 ft at 7:15PM Apr 08, 2021Observed: 0.81 ft at 7:30PM Apr 08, 2021Observed: 0.82 ft at 7:45PM Apr 08, 2021Observed: 0.83 ft at 8:00PM Apr 08, 2021Observed: 0.83 ft at 8:15PM Apr 08, 2021Observed: 0.82 ft at 8:30PM Apr 08, 2021Observed: 0.84 ft at 8:45PM Apr 08, 2021Observed: 0.83 ft at 9:00PM Apr 08, 2021Observed: 0.82 ft at 9:15PM Apr 08, 2021Observed: 0.81 ft at 9:30PM Apr 08, 2021Observed: 0.8 ft at 9:45PM Apr 08, 2021Observed: 0.8 ft at 10:00PM Apr 08, 2021Observed: 0.8 ft at 10:15PM Apr 08, 2021Observed: 0.81 ft at 10:30PM Apr 08, 2021Observed: 0.81 ft at 10:45PM Apr 08, 2021Observed: 0.81 ft at 11:00PM Apr 08, 2021Observed: 0.83 ft at 11:15PM Apr 08, 2021Observed: 0.83 ft at 11:30PM Apr 08, 2021Observed: 0.84 ft at 11:45PM Apr 08, 2021Observed: 0.83 ft at 12:00AM Apr 09, 2021Observed: 0.84 ft at 12:15AM Apr 09, 2021Observed: 0.84 ft at 12:30AM Apr 09, 2021Observed: 0.83 ft at 12:45AM Apr 09, 2021Observed: 0.83 ft at 1:00AM Apr 09, 2021Observed: 0.84 ft at 1:15AM Apr 09, 2021Observed: 0.83 ft at 1:30AM Apr 09, 2021Observed: 0.84 ft at 1:45AM Apr 09, 2021Observed: 0.84 ft at 2:00AM Apr 09, 2021Observed: 0.84 ft at 2:15AM Apr 09, 2021Observed: 0.85 ft at 2:30AM Apr 09, 2021Observed: 0.85 ft at 2:45AM Apr 09, 2021Observed: 0.84 ft at 3:00AM Apr 09, 2021Observed: 0.85 ft at 3:15AM Apr 09, 2021Observed: 0.85 ft at 3:30AM Apr 09, 2021Observed: 0.85 ft at 3:45AM Apr 09, 2021Observed: 0.85 ft at 4:00AM Apr 09, 2021Observed: 0.85 ft at 4:15AM Apr 09, 2021Observed: 0.85 ft at 4:30AM Apr 09, 2021Observed: 0.85 ft at 4:45AM Apr 09, 2021Observed: 0.85 ft at 5:00AM Apr 09, 2021Observed: 0.85 ft at 5:15AM Apr 09, 2021Observed: 0.86 ft at 5:30AM Apr 09, 2021Observed: 0.89 ft at 5:45AM Apr 09, 2021Observed: 0.89 ft at 6:00AM Apr 09, 2021Observed: 0.89 ft at 6:15AM Apr 09, 2021Observed: 0.9 ft at 6:30AM Apr 09, 2021Observed: 0.9 ft at 6:45AM Apr 09, 2021Observed: 0.91 ft at 7:00AM Apr 09, 2021Observed: 0.91 ft at 7:15AM Apr 09, 2021Observed: 0.91 ft at 7:30AM Apr 09, 2021Observed: 0.91 ft at 7:45AM Apr 09, 2021Observed: 0.92 ft at 8:00AM Apr 09, 2021Observed: 0.93 ft at 8:15AM Apr 09, 2021Observed: 0.92 ft at 8:30AM Apr 09, 2021Observed: 0.84 ft at 8:45AM Apr 09, 2021Observed: 0.86 ft at 9:00AM Apr 09, 2021Observed: 0.87 ft at 9:15AM Apr 09, 2021Observed: 0.86 ft at 9:30AM Apr 09, 2021Observed: 0.87 ft at 9:45AM Apr 09, 2021Observed: 1.08 ft at 10:00AM Apr 09, 2021Observed: 1.07 ft at 10:15AM Apr 09, 2021Observed: 1.09 ft at 10:30AM Apr 09, 2021Observed: 1.12 ft at 10:45AM Apr 09, 2021Observed: 1.13 ft at 11:00AM Apr 09, 2021Observed: 1.16 ft at 11:15AM Apr 09, 2021Observed: 1.17 ft at 11:30AM Apr 09, 2021Observed: 1.17 ft at 11:45AM Apr 09, 2021Observed: 1.18 ft at 12:00PM Apr 09, 2021Observed: 1.18 ft at 12:15PM Apr 09, 2021Observed: 1.19 ft at 12:30PM Apr 09, 2021Observed: 1.19 ft at 12:45PM Apr 09, 2021Observed: 1.2 ft at 1:00PM Apr 09, 2021Observed: 1.21 ft at 1:15PM Apr 09, 2021Observed: 1.21 ft at 1:30PM Apr 09, 2021Observed: 1.21 ft at 1:45PM Apr 09, 2021Observed: 1.22 ft at 2:00PM Apr 09, 2021Observed: 1.22 ft at 2:15PM Apr 09, 2021Observed: 1.22 ft at 2:30PM Apr 09, 2021Observed: 1.22 ft at 2:45PM Apr 09, 2021Observed: 1.22 ft at 3:00PM Apr 09, 2021Observed: 1.21 ft at 3:15PM Apr 09, 2021Observed: 1.22 ft at 3:30PM Apr 09, 2021Observed: 1.21 ft at 3:45PM Apr 09, 2021Observed: 1.22 ft at 4:00PM Apr 09, 2021Observed: 1.22 ft at 4:15PM Apr 09, 2021Observed: 1.21 ft at 4:30PM Apr 09, 2021Observed: 1.21 ft at 4:45PM Apr 09, 2021Observed: 1.21 ft at 5:00PM Apr 09, 2021Observed: 1.2 ft at 5:15PM Apr 09, 2021Observed: 1.2 ft at 5:30PM Apr 09, 2021Observed: 1.19 ft at 5:45PM Apr 09, 2021Observed: 1.19 ft at 6:00PM Apr 09, 2021Observed: 1.19 ft at 6:15PM Apr 09, 2021Observed: 1.19 ft at 6:30PM Apr 09, 2021Observed: 1.19 ft at 6:45PM Apr 09, 2021Observed: 1.19 ft at 7:00PM Apr 09, 2021Observed: 1.19 ft at 7:15PM Apr 09, 2021Observed: 1.18 ft at 7:30PM Apr 09, 2021Observed: 1.18 ft at 7:45PM Apr 09, 2021Observed: 1.18 ft at 8:00PM Apr 09, 2021Observed: 1.19 ft at 8:15PM Apr 09, 2021Observed: 1.19 ft at 8:30PM Apr 09, 2021Observed: 1.19 ft at 8:45PM Apr 09, 2021Observed: 1.19 ft at 9:00PM Apr 09, 2021Observed: 1.19 ft at 9:15PM Apr 09, 2021Observed: 1.19 ft at 9:30PM Apr 09, 2021Observed: 1.19 ft at 9:45PM Apr 09, 2021Observed: 1.18 ft at 10:00PM Apr 09, 2021Observed: 1.18 ft at 10:15PM Apr 09, 2021Observed: 1.19 ft at 10:30PM Apr 09, 2021Observed: 1.19 ft at 10:45PM Apr 09, 2021Observed: 1.19 ft at 11:00PM Apr 09, 2021Observed: 1.19 ft at 11:15PM Apr 09, 2021Observed: 1.19 ft at 11:30PM Apr 09, 2021Observed: 1.19 ft at 11:45PM Apr 09, 2021Observed: 1.19 ft at 12:00AM Apr 10, 2021Observed: 1.19 ft at 12:15AM Apr 10, 2021Observed: 1.19 ft at 12:30AM Apr 10, 2021Observed: 1.18 ft at 12:45AM Apr 10, 2021Observed: 1.19 ft at 1:00AM Apr 10, 2021Observed: 1.19 ft at 1:15AM Apr 10, 2021Observed: 1.19 ft at 1:30AM Apr 10, 2021Observed: 1.19 ft at 1:45AM Apr 10, 2021Observed: 1.19 ft at 2:00AM Apr 10, 2021Observed: 1.2 ft at 2:15AM Apr 10, 2021Observed: 1.2 ft at 2:30AM Apr 10, 2021Observed: 1.2 ft at 2:45AM Apr 10, 2021Observed: 1.19 ft at 3:00AM Apr 10, 2021Observed: 1.2 ft at 3:15AM Apr 10, 2021Observed: 1.19 ft at 3:30AM Apr 10, 2021Observed: 1.2 ft at 3:45AM Apr 10, 2021Observed: 1.19 ft at 4:00AM Apr 10, 2021Observed: 1.19 ft at 4:15AM Apr 10, 2021Observed: 1.19 ft at 4:30AM Apr 10, 2021Observed: 1.19 ft at 4:45AM Apr 10, 2021Observed: 1.19 ft at 5:00AM Apr 10, 2021Observed: 1.19 ft at 5:15AM Apr 10, 2021Observed: 1.19 ft at 5:30AM Apr 10, 2021Observed: 1.19 ft at 5:45AM Apr 10, 2021Observed: 1.2 ft at 6:00AM Apr 10, 2021Observed: 1.19 ft at 6:15AM Apr 10, 2021Observed: 1.19 ft at 6:30AM Apr 10, 2021Observed: 1.19 ft at 6:45AM Apr 10, 2021Observed: 1.19 ft at 7:00AM Apr 10, 2021Observed: 1.19 ft at 7:15AM Apr 10, 2021Observed: 1.19 ft at 7:30AM Apr 10, 2021Observed: 1.19 ft at 7:45AM Apr 10, 2021Observed: 1.19 ft at 8:00AM Apr 10, 2021Observed: 1.2 ft at 8:15AM Apr 10, 2021Observed: 1.2 ft at 8:30AM Apr 10, 2021Observed: 1.19 ft at 8:45AM Apr 10, 2021Observed: 1.19 ft at 9:00AM Apr 10, 2021Observed: 1.19 ft at 9:15AM Apr 10, 2021Observed: 1.19 ft at 9:30AM Apr 10, 2021Observed: 1.2 ft at 9:45AM Apr 10, 2021Observed: 1.2 ft at 10:00AM Apr 10, 2021Observed: 1.2 ft at 10:15AM Apr 10, 2021Observed: 1.21 ft at 10:30AM Apr 10, 2021Observed: 1.21 ft at 10:45AM Apr 10, 2021Observed: 1.21 ft at 11:00AM Apr 10, 2021Observed: 1.21 ft at 11:15AM Apr 10, 2021Observed: 1.21 ft at 11:30AM Apr 10, 2021Observed: 1.21 ft at 11:45AM Apr 10, 2021Observed: 1.22 ft at 12:00PM Apr 10, 2021Observed: 1.21 ft at 12:15PM Apr 10, 2021Observed: 1.22 ft at 12:30PM Apr 10, 2021Observed: 1.22 ft at 12:45PM Apr 10, 2021Observed: 1.22 ft at 1:00PM Apr 10, 2021Observed: 1.22 ft at 1:15PM Apr 10, 2021Observed: 1.22 ft at 1:30PM Apr 10, 2021Observed: 1.22 ft at 1:45PM Apr 10, 2021Observed: 1.23 ft at 2:00PM Apr 10, 2021Observed: 1.23 ft at 2:15PM Apr 10, 2021Observed: 1.23 ft at 2:30PM Apr 10, 2021Observed: 1.24 ft at 2:45PM Apr 10, 2021Observed: 1.24 ft at 3:00PM Apr 10, 2021Observed: 1.23 ft at 3:15PM Apr 10, 2021Observed: 1.24 ft at 3:30PM Apr 10, 2021Observed: 1.24 ft at 3:45PM Apr 10, 2021Observed: 1.24 ft at 4:00PM Apr 10, 2021Observed: 1.24 ft at 4:15PM Apr 10, 2021Observed: 1.25 ft at 4:30PM Apr 10, 2021Observed: 1.24 ft at 4:45PM Apr 10, 2021Observed: 1.24 ft at 5:00PM Apr 10, 2021Observed: 1.24 ft at 5:15PM Apr 10, 2021Observed: 1.25 ft at 5:30PM Apr 10, 2021Observed: 1.25 ft at 5:45PM Apr 10, 2021Observed: 1.24 ft at 6:00PM Apr 10, 2021Observed: 1.24 ft at 6:15PM Apr 10, 2021Observed: 1.25 ft at 6:30PM Apr 10, 2021Observed: 1.25 ft at 6:45PM Apr 10, 2021Observed: 1.25 ft at 7:00PM Apr 10, 2021Observed: 1.26 ft at 7:15PM Apr 10, 2021Observed: 1.26 ft at 7:30PM Apr 10, 2021Observed: 1.26 ft at 7:45PM Apr 10, 2021Observed: 1.25 ft at 8:00PM Apr 10, 2021Observed: 1.28 ft at 8:15PM Apr 10, 2021Observed: 1.28 ft at 8:30PM Apr 10, 2021Observed: 1.28 ft at 8:45PM Apr 10, 2021Observed: 1.26 ft at 9:00PM Apr 10, 2021Observed: 1.28 ft at 9:15PM Apr 10, 2021Observed: 1.28 ft at 9:30PM Apr 10, 2021Observed: 1.28 ft at 9:45PM Apr 10, 2021Observed: 1.28 ft at 10:00PM Apr 10, 2021Observed: 1.27 ft at 10:15PM Apr 10, 2021Observed: 1.28 ft at 10:30PM Apr 10, 2021Observed: 1.27 ft at 10:45PM Apr 10, 2021Observed: 1.28 ft at 11:00PM Apr 10, 2021Observed: 1.27 ft at 11:15PM Apr 10, 2021Observed: 1.27 ft at 11:30PM Apr 10, 2021Observed: 1.27 ft at 11:45PM Apr 10, 2021Observed: 1.28 ft at 12:00AM Apr 11, 2021Observed: 1.27 ft at 12:15AM Apr 11, 2021Observed: 1.27 ft at 12:30AM Apr 11, 2021Observed: 1.27 ft at 12:45AM Apr 11, 2021Observed: 1.28 ft at 1:00AM Apr 11, 2021Observed: 1.28 ft at 1:15AM Apr 11, 2021Observed: 1.28 ft at 1:30AM Apr 11, 2021Observed: 1.28 ft at 1:45AM Apr 11, 2021Observed: 1.29 ft at 2:00AM Apr 11, 2021Observed: 1.28 ft at 2:15AM Apr 11, 2021Observed: 1.29 ft at 2:30AM Apr 11, 2021Observed: 1.28 ft at 2:45AM Apr 11, 2021Observed: 1.28 ft at 3:00AM Apr 11, 2021Observed: 1.28 ft at 3:15AM Apr 11, 2021Observed: 1.28 ft at 3:30AM Apr 11, 2021Observed: 1.28 ft at 3:45AM Apr 11, 2021Observed: 1.28 ft at 4:00AM Apr 11, 2021Observed: 1.27 ft at 4:15AM Apr 11, 2021Observed: 1.27 ft at 4:30AM Apr 11, 2021Observed: 1.27 ft at 4:45AM Apr 11, 2021Observed: 1.27 ft at 5:00AM Apr 11, 2021Observed: 1.27 ft at 5:15AM Apr 11, 2021Observed: 1.28 ft at 5:30AM Apr 11, 2021Observed: 1.28 ft at 5:45AM Apr 11, 2021Observed: 1.27 ft at 6:00AM Apr 11, 2021Observed: 1.27 ft at 6:15AM Apr 11, 2021Observed: 1.27 ft at 6:30AM Apr 11, 2021Observed: 1.27 ft at 6:45AM Apr 11, 2021Observed: 1.27 ft at 7:00AM Apr 11, 2021Observed: 1.27 ft at 7:15AM Apr 11, 2021Observed: 1.27 ft at 7:30AM Apr 11, 2021Observed: 1.27 ft at 7:45AM Apr 11, 2021Observed: 1.27 ft at 8:00AM Apr 11, 2021Observed: 1.27 ft at 8:15AM Apr 11, 2021Observed: 1.27 ft at 8:30AM Apr 11, 2021Observed: 1.27 ft at 8:45AM Apr 11, 2021Observed: 1.27 ft at 9:00AM Apr 11, 2021Observed: 1.27 ft at 9:15AM Apr 11, 2021Observed: 1.27 ft at 9:30AM Apr 11, 2021Observed: 1.27 ft at 9:45AM Apr 11, 2021Observed: 1.28 ft at 10:00AM Apr 11, 2021Observed: 1.27 ft at 10:15AM Apr 11, 2021Observed: 1.27 ft at 10:30AM Apr 11, 2021Observed: 1.27 ft at 10:45AM Apr 11, 2021Observed: 1.27 ft at 11:00AM Apr 11, 2021Observed: 1.27 ft at 11:15AM Apr 11, 2021Observed: 1.27 ft at 11:30AM Apr 11, 2021Observed: 1.28 ft at 11:45AM Apr 11, 2021Observed: 1.27 ft at 12:00PM Apr 11, 2021Observed: 1.27 ft at 12:15PM Apr 11, 2021Observed: 1.28 ft at 12:30PM Apr 11, 2021Observed: 1.28 ft at 12:45PM Apr 11, 2021Observed: 1.29 ft at 1:00PM Apr 11, 2021Observed: 1.28 ft at 1:15PM Apr 11, 2021Observed: 1.28 ft at 1:30PM Apr 11, 2021Observed: 1.28 ft at 1:45PM Apr 11, 2021Observed: 1.29 ft at 2:00PM Apr 11, 2021Observed: 1.29 ft at 2:15PM Apr 11, 2021Observed: 1.29 ft at 2:30PM Apr 11, 2021Observed: 1.28 ft at 2:45PM Apr 11, 2021Observed: 1.28 ft at 3:00PM Apr 11, 2021Observed: 1.28 ft at 3:15PM Apr 11, 2021Observed: 1.29 ft at 3:30PM Apr 11, 2021Observed: 1.29 ft at 3:45PM Apr 11, 2021Observed: 1.28 ft at 4:00PM Apr 11, 2021Observed: 1.29 ft at 4:15PM Apr 11, 2021Observed: 1.29 ft at 4:30PM Apr 11, 2021Observed: 1.29 ft at 4:45PM Apr 11, 2021Observed: 1.29 ft at 5:00PM Apr 11, 2021Observed: 1.29 ft at 5:15PM Apr 11, 2021Observed: 1.29 ft at 5:30PM Apr 11, 2021Observed: 1.29 ft at 5:45PM Apr 11, 2021Observed: 1.29 ft at 6:00PM Apr 11, 2021Observed: 1.29 ft at 6:15PM Apr 11, 2021Observed: 1.29 ft at 6:30PM Apr 11, 2021Observed: 1.29 ft at 6:45PM Apr 11, 2021Observed: 1.29 ft at 7:00PM Apr 11, 2021Observed: 1.3 ft at 7:15PM Apr 11, 2021Observed: 1.3 ft at 7:30PM Apr 11, 2021Observed: 1.3 ft at 7:45PM Apr 11, 2021Observed: 1.3 ft at 8:00PM Apr 11, 2021Observed: 1.3 ft at 8:15PM Apr 11, 2021Observed: 1.3 ft at 8:30PM Apr 11, 2021Observed: 1.31 ft at 8:45PM Apr 11, 2021Observed: 1.3 ft at 9:00PM Apr 11, 2021Observed: 1.3 ft at 9:15PM Apr 11, 2021Observed: 1.31 ft at 9:30PM Apr 11, 2021Observed: 1.31 ft at 9:45PM Apr 11, 2021Observed: 1.31 ft at 10:00PM Apr 11, 2021Observed: 1.31 ft at 10:15PM Apr 11, 2021Observed: 1.31 ft at 10:30PM Apr 11, 2021Observed: 1.31 ft at 10:45PM Apr 11, 2021Observed: 1.31 ft at 11:00PM Apr 11, 2021Observed: 1.31 ft at 11:15PM Apr 11, 2021Observed: 1.31 ft at 11:30PM Apr 11, 2021Observed: 1.31 ft at 11:45PM Apr 11, 2021Observed: 1.31 ft at 12:00AM Apr 12, 2021Observed: 1.31 ft at 12:15AM Apr 12, 2021Observed: 1.31 ft at 12:30AM Apr 12, 2021Observed: 1.31 ft at 12:45AM Apr 12, 2021Observed: 1.31 ft at 1:00AM Apr 12, 2021Observed: 1.31 ft at 1:15AM Apr 12, 2021Observed: 1.31 ft at 1:30AM Apr 12, 2021Observed: 1.31 ft at 1:45AM Apr 12, 2021Observed: 1.31 ft at 2:00AM Apr 12, 2021Observed: 1.31 ft at 2:15AM Apr 12, 2021Observed: 1.31 ft at 2:30AM Apr 12, 2021Observed: 1.3 ft at 2:45AM Apr 12, 2021Observed: 1.31 ft at 3:00AM Apr 12, 2021Observed: 1.31 ft at 3:15AM Apr 12, 2021Observed: 1.31 ft at 3:30AM Apr 12, 2021Observed: 1.31 ft at 3:45AM Apr 12, 2021Observed: 1.31 ft at 4:00AM Apr 12, 2021Observed: 1.32 ft at 4:15AM Apr 12, 2021Observed: 1.31 ft at 4:30AM Apr 12, 2021Observed: 1.31 ft at 4:45AM Apr 12, 2021Observed: 1.32 ft at 5:00AM Apr 12, 2021Observed: 1.32 ft at 5:15AM Apr 12, 2021Observed: 1.32 ft at 5:30AM Apr 12, 2021Observed: 1.32 ft at 5:45AM Apr 12, 2021Observed: 1.33 ft at 6:00AM Apr 12, 2021Observed: 1.33 ft at 6:15AM Apr 12, 2021Observed: 1.33 ft at 6:30AM Apr 12, 2021Observed: 1.32 ft at 6:45AM Apr 12, 2021Observed: 1.32 ft at 7:00AM Apr 12, 2021Observed: 1.32 ft at 7:15AM Apr 12, 2021Observed: 1.32 ft at 7:30AM Apr 12, 2021Observed: 1.32 ft at 7:45AM Apr 12, 2021Observed: 1.31 ft at 8:00AM Apr 12, 2021Observed: 1.31 ft at 8:15AM Apr 12, 2021Observed: 1.32 ft at 8:30AM Apr 12, 2021Observed: 1.31 ft at 8:45AM Apr 12, 2021Observed: 1.3 ft at 9:00AM Apr 12, 2021Observed: 1.3 ft at 9:15AM Apr 12, 2021Observed: 1.3 ft at 9:30AM Apr 12, 2021Observed: 1.3 ft at 9:45AM Apr 12, 2021Observed: 1.31 ft at 10:00AM Apr 12, 2021Observed: 1.29 ft at 10:15AM Apr 12, 2021Observed: 1.3 ft at 10:30AM Apr 12, 2021Observed: 1.29 ft at 10:45AM Apr 12, 2021Observed: 1.3 ft at 11:00AM Apr 12, 2021Highest Observation: 1.38 ft at 11:15AM Apr 12, 2021Observed: 1.33 ft at 11:30AM Apr 12, 2021Observed: 1.3 ft at 11:45AM Apr 12, 2021Observed: 1.14 ft at 12:00PM Apr 12, 2021Observed: 1.09 ft at 12:15PM Apr 12, 2021Observed: 1.09 ft at 12:30PM Apr 12, 2021Observed: 1.06 ft at 12:45PM Apr 12, 2021Observed: 1.1 ft at 1:00PM Apr 12, 2021Observed: 1.05 ft at 1:15PM Apr 12, 2021Observed: 1.01 ft at 1:30PM Apr 12, 2021Observed: 1.02 ft at 1:45PM Apr 12, 2021Observed: 1.06 ft at 2:00PM Apr 12, 2021Observed: 1.02 ft at 2:15PM Apr 12, 2021Observed: 0.98 ft at 2:30PM Apr 12, 2021Observed: 1.01 ft at 2:45PM Apr 12, 2021Observed: 0.95 ft at 3:00PM Apr 12, 2021Observed: 0.97 ft at 3:15PM Apr 12, 2021Observed: 0.98 ft at 3:30PM Apr 12, 2021Observed: 0.97 ft at 3:45PM Apr 12, 2021Observed: 0.99 ft at 4:00PM Apr 12, 2021Observed: 0.96 ft at 4:15PM Apr 12, 2021Observed: 0.96 ft at 4:30PM Apr 12, 2021Observed: 0.97 ft at 4:45PM Apr 12, 2021Observed: 0.97 ft at 5:00PM Apr 12, 2021Observed: 0.96 ft at 5:15PM Apr 12, 2021Observed: 0.96 ft at 5:30PM Apr 12, 2021Observed: 0.97 ft at 5:45PM Apr 12, 2021Observed: 0.96 ft at 6:00PM Apr 12, 2021Observed: 0.97 ft at 6:15PM Apr 12, 2021Observed: 0.97 ft at 6:30PM Apr 12, 2021Observed: 0.96 ft at 6:45PM Apr 12, 2021Observed: 0.97 ft at 7:00PM Apr 12, 2021Observed: 0.98 ft at 7:15PM Apr 12, 2021Observed: 0.98 ft at 7:30PM Apr 12, 2021Observed: 0.99 ft at 7:45PM Apr 12, 2021Observed: 0.99 ft at 8:00PM Apr 12, 2021Observed: 0.99 ft at 8:15PM Apr 12, 2021Observed: 1 ft at 8:30PM Apr 12, 2021Observed: 1 ft at 8:45PM Apr 12, 2021Observed: 0.99 ft at 9:00PM Apr 12, 2021Observed: 0.99 ft at 9:15PM Apr 12, 2021Observed: 1 ft at 9:30PM Apr 12, 2021Observed: 1 ft at 9:45PM Apr 12, 2021Observed: 0.99 ft at 10:00PM Apr 12, 2021Observed: 1 ft at 10:15PM Apr 12, 2021Observed: 1 ft at 10:30PM Apr 12, 2021Observed: 0.99 ft at 10:45PM Apr 12, 2021Observed: 0.99 ft at 11:00PM Apr 12, 2021Observed: 0.99 ft at 11:15PM Apr 12, 2021Observed: 0.99 ft at 11:30PM Apr 12, 2021Observed: 0.99 ft at 11:45PM Apr 12, 2021Observed: 0.99 ft at 12:00AM Apr 13, 2021Observed: 0.98 ft at 12:15AM Apr 13, 2021Observed: 0.98 ft at 12:30AM Apr 13, 2021Observed: 0.98 ft at 12:45AM Apr 13, 2021Observed: 0.98 ft at 1:00AM Apr 13, 2021Observed: 0.98 ft at 1:15AM Apr 13, 2021Observed: 0.97 ft at 1:30AM Apr 13, 2021Observed: 0.97 ft at 1:45AM Apr 13, 2021Observed: 0.97 ft at 2:00AM Apr 13, 2021Observed: 0.97 ft at 2:15AM Apr 13, 2021Observed: 0.97 ft at 2:30AM Apr 13, 2021Observed: 0.97 ft at 2:45AM Apr 13, 2021Observed: 0.97 ft at 3:00AM Apr 13, 2021Observed: 0.97 ft at 3:15AM Apr 13, 2021Observed: 0.96 ft at 3:30AM Apr 13, 2021Observed: 0.96 ft at 3:45AM Apr 13, 2021Observed: 0.96 ft at 4:00AM Apr 13, 2021Observed: 0.96 ft at 4:15AM Apr 13, 2021Observed: 0.96 ft at 4:30AM Apr 13, 2021Observed: 0.96 ft at 4:45AM Apr 13, 2021Observed: 0.96 ft at 5:00AM Apr 13, 2021Observed: 0.96 ft at 5:15AM Apr 13, 2021Observed: 0.96 ft at 5:30AM Apr 13, 2021Observed: 0.96 ft at 5:45AM Apr 13, 2021Observed: 0.95 ft at 6:00AM Apr 13, 2021Observed: 0.95 ft at 6:15AM Apr 13, 2021Observed: 0.95 ft at 6:30AM Apr 13, 2021Observed: 0.95 ft at 6:45AM Apr 13, 2021Observed: 0.95 ft at 7:00AM Apr 13, 2021Observed: 0.94 ft at 7:15AM Apr 13, 2021USGS--Water Resources of the United StatesMHYI2(plotting HTIRG) Graph Created (7:56AM Apr 13, 2021)ObservedLatest observed value: 0.94 ft at 7:15 AM CDT 13-Apr-2021. Flood Stage is 4 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: Not Available
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) 7.20 ft on 10/02/1986
(4) 7.04 ft on 04/02/1979
(5) 6.95 ft on 08/27/2007
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

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

Zoom Level:15
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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
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.
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 Not Available Not Available 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
Resources Collapse
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
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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Page last modified: 2-Nov-2020 7:29 PM
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