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Hydrograph River at a Glance Download
Fox River at McHenry (Stratton Lock and Dam) tailwater Tailwater (ft)Flow (kcfs)Highest Observation: 5.2 ft at 8:45PM Apr 11, 2024Highest Observation: 5.2 ft at 9:00PM Apr 11, 2024Observed: 5.19 ft at 9:15PM Apr 11, 2024Observed: 5.19 ft at 9:30PM Apr 11, 2024Observed: 5.19 ft at 9:45PM Apr 11, 2024Observed: 5.18 ft at 10:00PM Apr 11, 2024Observed: 5.19 ft at 10:15PM Apr 11, 2024Observed: 5.19 ft at 10:30PM Apr 11, 2024Observed: 5.18 ft at 10:45PM Apr 11, 2024Observed: 5.19 ft at 11:00PM Apr 11, 2024Observed: 5.18 ft at 11:15PM Apr 11, 2024Observed: 5.17 ft at 11:30PM Apr 11, 2024Observed: 5.18 ft at 11:45PM Apr 11, 2024Observed: 5.17 ft at 12:00AM Apr 12, 2024Observed: 5.17 ft at 12:15AM Apr 12, 2024Observed: 5.17 ft at 12:30AM Apr 12, 2024Observed: 5.17 ft at 12:45AM Apr 12, 2024Observed: 5.17 ft at 1:00AM Apr 12, 2024Observed: 5.16 ft at 1:15AM Apr 12, 2024Observed: 5.16 ft at 1:30AM Apr 12, 2024Observed: 5.16 ft at 1:45AM Apr 12, 2024Observed: 5.16 ft at 2:00AM Apr 12, 2024Observed: 5.15 ft at 2:15AM Apr 12, 2024Observed: 5.16 ft at 2:30AM Apr 12, 2024Observed: 5.15 ft at 2:45AM Apr 12, 2024Observed: 5.15 ft at 3:00AM Apr 12, 2024Observed: 5.15 ft at 3:15AM Apr 12, 2024Observed: 5.15 ft at 3:30AM Apr 12, 2024Observed: 5.14 ft at 3:45AM Apr 12, 2024Observed: 5.14 ft at 4:00AM Apr 12, 2024Observed: 5.15 ft at 4:15AM Apr 12, 2024Observed: 5.15 ft at 4:30AM Apr 12, 2024Observed: 5.15 ft at 4:45AM Apr 12, 2024Observed: 5.14 ft at 5:00AM Apr 12, 2024Observed: 5.14 ft at 5:15AM Apr 12, 2024Observed: 5.14 ft at 5:30AM Apr 12, 2024Observed: 5.13 ft at 5:45AM Apr 12, 2024Observed: 5.13 ft at 6:00AM Apr 12, 2024Observed: 5.13 ft at 6:15AM Apr 12, 2024Observed: 5.12 ft at 6:30AM Apr 12, 2024Observed: 5.12 ft at 6:45AM Apr 12, 2024Observed: 5.13 ft at 7:00AM Apr 12, 2024Observed: 5.12 ft at 7:15AM Apr 12, 2024Observed: 5.12 ft at 7:30AM Apr 12, 2024Observed: 5.12 ft at 7:45AM Apr 12, 2024Observed: 5.12 ft at 8:00AM Apr 12, 2024Observed: 5.12 ft at 8:15AM Apr 12, 2024Observed: 5.1 ft at 8:30AM Apr 12, 2024Observed: 5.1 ft at 8:45AM Apr 12, 2024Observed: 5.1 ft at 9:00AM Apr 12, 2024Observed: 5.1 ft at 9:15AM Apr 12, 2024Observed: 5.09 ft at 9:30AM Apr 12, 2024Observed: 5.09 ft at 9:45AM Apr 12, 2024Observed: 5.09 ft at 10:00AM Apr 12, 2024Observed: 5.09 ft at 10:15AM Apr 12, 2024Observed: 5.08 ft at 10:30AM Apr 12, 2024Observed: 5.09 ft at 10:45AM Apr 12, 2024Observed: 5.08 ft at 11:00AM Apr 12, 2024Observed: 5.08 ft at 11:15AM Apr 12, 2024Observed: 5.08 ft at 11:30AM Apr 12, 2024Observed: 5.08 ft at 11:45AM Apr 12, 2024Observed: 5.08 ft at 12:00PM Apr 12, 2024Observed: 5.06 ft at 12:15PM Apr 12, 2024Observed: 5.05 ft at 12:30PM Apr 12, 2024Observed: 5.07 ft at 12:45PM Apr 12, 2024Observed: 5.05 ft at 1:00PM Apr 12, 2024Observed: 5.06 ft at 1:15PM Apr 12, 2024Observed: 5.06 ft at 1:30PM Apr 12, 2024Observed: 5.05 ft at 1:45PM Apr 12, 2024Observed: 5.06 ft at 2:00PM Apr 12, 2024Observed: 5.06 ft at 2:15PM Apr 12, 2024Observed: 5.03 ft at 2:30PM Apr 12, 2024Observed: 5.04 ft at 2:45PM Apr 12, 2024Observed: 5.04 ft at 3:00PM Apr 12, 2024Observed: 5.04 ft at 3:15PM Apr 12, 2024Observed: 5.06 ft at 3:30PM Apr 12, 2024Observed: 5.04 ft at 3:45PM Apr 12, 2024Observed: 5.04 ft at 4:00PM Apr 12, 2024Observed: 5.04 ft at 4:15PM Apr 12, 2024Observed: 5.03 ft at 4:30PM Apr 12, 2024Observed: 5.04 ft at 4:45PM Apr 12, 2024Observed: 5.05 ft at 5:00PM Apr 12, 2024Observed: 5.03 ft at 5:15PM Apr 12, 2024Observed: 5.03 ft at 5:30PM Apr 12, 2024Observed: 5.04 ft at 5:45PM Apr 12, 2024Observed: 5.04 ft at 6:00PM Apr 12, 2024Observed: 5.04 ft at 6:15PM Apr 12, 2024Observed: 5.04 ft at 6:30PM Apr 12, 2024Observed: 5.04 ft at 6:45PM Apr 12, 2024Observed: 5.04 ft at 7:00PM Apr 12, 2024Observed: 5.03 ft at 7:15PM Apr 12, 2024Observed: 5.03 ft at 7:30PM Apr 12, 2024Observed: 5.04 ft at 7:45PM Apr 12, 2024Observed: 5.04 ft at 8:00PM Apr 12, 2024Observed: 5.03 ft at 8:15PM Apr 12, 2024Observed: 5.04 ft at 8:30PM Apr 12, 2024Observed: 5.04 ft at 8:45PM Apr 12, 2024Observed: 5.04 ft at 9:00PM Apr 12, 2024Observed: 5.03 ft at 9:15PM Apr 12, 2024Observed: 5.04 ft at 9:30PM Apr 12, 2024Observed: 5.03 ft at 9:45PM Apr 12, 2024Observed: 5.03 ft at 10:00PM Apr 12, 2024Observed: 5.03 ft at 10:15PM Apr 12, 2024Observed: 5.03 ft at 10:30PM Apr 12, 2024Observed: 5.03 ft at 10:45PM Apr 12, 2024Observed: 5.03 ft at 11:00PM Apr 12, 2024Observed: 5.02 ft at 11:15PM Apr 12, 2024Observed: 5.02 ft at 11:30PM Apr 12, 2024Observed: 5.02 ft at 11:45PM Apr 12, 2024Observed: 5.02 ft at 12:00AM Apr 13, 2024Observed: 5.02 ft at 12:15AM Apr 13, 2024Observed: 5.01 ft at 12:30AM Apr 13, 2024Observed: 5.01 ft at 12:45AM Apr 13, 2024Observed: 5.01 ft at 1:00AM Apr 13, 2024Observed: 5.01 ft at 1:15AM Apr 13, 2024Observed: 5.01 ft at 1:30AM Apr 13, 2024Observed: 5.01 ft at 1:45AM Apr 13, 2024Observed: 5.01 ft at 2:00AM Apr 13, 2024Observed: 5.01 ft at 2:15AM Apr 13, 2024Observed: 5 ft at 2:30AM Apr 13, 2024Observed: 5 ft at 2:45AM Apr 13, 2024Observed: 4.99 ft at 3:00AM Apr 13, 2024Observed: 5 ft at 3:15AM Apr 13, 2024Observed: 5 ft at 3:30AM Apr 13, 2024Observed: 4.99 ft at 3:45AM Apr 13, 2024Observed: 4.98 ft at 4:00AM Apr 13, 2024Observed: 4.99 ft at 4:15AM Apr 13, 2024Observed: 4.99 ft at 4:30AM Apr 13, 2024Observed: 4.98 ft at 4:45AM Apr 13, 2024Observed: 4.98 ft at 5:00AM Apr 13, 2024Observed: 4.97 ft at 5:15AM Apr 13, 2024Observed: 4.97 ft at 5:30AM Apr 13, 2024Observed: 4.98 ft at 5:45AM Apr 13, 2024Observed: 4.98 ft at 6:00AM Apr 13, 2024Observed: 4.97 ft at 6:15AM Apr 13, 2024Observed: 4.97 ft at 6:30AM Apr 13, 2024Observed: 4.97 ft at 6:45AM Apr 13, 2024Observed: 4.97 ft at 7:00AM Apr 13, 2024Observed: 4.96 ft at 7:15AM Apr 13, 2024Observed: 4.96 ft at 7:30AM Apr 13, 2024Observed: 4.96 ft at 7:45AM Apr 13, 2024Observed: 4.96 ft at 8:00AM Apr 13, 2024Observed: 4.95 ft at 8:15AM Apr 13, 2024Observed: 4.95 ft at 8:30AM Apr 13, 2024Observed: 4.95 ft at 8:45AM Apr 13, 2024Observed: 4.95 ft at 9:00AM Apr 13, 2024Observed: 4.95 ft at 9:15AM Apr 13, 2024Observed: 4.94 ft at 9:30AM Apr 13, 2024Observed: 4.95 ft at 9:45AM Apr 13, 2024Observed: 4.94 ft at 10:00AM Apr 13, 2024Observed: 4.94 ft at 10:15AM Apr 13, 2024Observed: 4.94 ft at 10:30AM Apr 13, 2024Observed: 4.93 ft at 10:45AM Apr 13, 2024Observed: 4.93 ft at 11:00AM Apr 13, 2024Observed: 4.93 ft at 11:15AM Apr 13, 2024Observed: 4.93 ft at 11:30AM Apr 13, 2024Observed: 4.93 ft at 11:45AM Apr 13, 2024Observed: 4.93 ft at 12:00PM Apr 13, 2024Observed: 4.92 ft at 12:15PM Apr 13, 2024Observed: 4.92 ft at 12:30PM Apr 13, 2024Observed: 4.92 ft at 12:45PM Apr 13, 2024Observed: 4.91 ft at 1:00PM Apr 13, 2024Observed: 4.92 ft at 1:15PM Apr 13, 2024Observed: 4.91 ft at 1:30PM Apr 13, 2024Observed: 4.91 ft at 1:45PM Apr 13, 2024Observed: 4.9 ft at 2:00PM Apr 13, 2024Observed: 4.9 ft at 2:15PM Apr 13, 2024Observed: 4.9 ft at 2:30PM Apr 13, 2024Observed: 4.9 ft at 2:45PM Apr 13, 2024Observed: 4.9 ft at 3:00PM Apr 13, 2024Observed: 4.9 ft at 3:15PM Apr 13, 2024Observed: 4.9 ft at 3:30PM Apr 13, 2024Observed: 4.88 ft at 3:45PM Apr 13, 2024Observed: 4.89 ft at 4:00PM Apr 13, 2024Observed: 4.89 ft at 4:15PM Apr 13, 2024Observed: 4.89 ft at 4:30PM Apr 13, 2024Observed: 4.89 ft at 4:45PM Apr 13, 2024Observed: 4.89 ft at 5:00PM Apr 13, 2024Observed: 4.87 ft at 5:15PM Apr 13, 2024Observed: 4.87 ft at 5:30PM Apr 13, 2024Observed: 4.87 ft at 5:45PM Apr 13, 2024Observed: 4.87 ft at 6:00PM Apr 13, 2024Observed: 4.87 ft at 6:15PM Apr 13, 2024Observed: 4.86 ft at 6:30PM Apr 13, 2024Observed: 4.86 ft at 6:45PM Apr 13, 2024Observed: 4.86 ft at 7:00PM Apr 13, 2024Observed: 4.85 ft at 7:15PM Apr 13, 2024Observed: 4.85 ft at 7:30PM Apr 13, 2024Observed: 4.85 ft at 7:45PM Apr 13, 2024Observed: 4.84 ft at 8:00PM Apr 13, 2024Observed: 4.85 ft at 8:15PM Apr 13, 2024Observed: 4.85 ft at 8:30PM Apr 13, 2024Observed: 4.84 ft at 8:45PM Apr 13, 2024Observed: 4.84 ft at 9:00PM Apr 13, 2024Observed: 4.84 ft at 9:15PM Apr 13, 2024Observed: 4.84 ft at 9:30PM Apr 13, 2024Observed: 4.84 ft at 9:45PM Apr 13, 2024Observed: 4.82 ft at 10:00PM Apr 13, 2024Observed: 4.83 ft at 10:15PM Apr 13, 2024Observed: 4.83 ft at 10:30PM Apr 13, 2024Observed: 4.82 ft at 10:45PM Apr 13, 2024Observed: 4.81 ft at 11:00PM Apr 13, 2024Observed: 4.82 ft at 11:15PM Apr 13, 2024Observed: 4.81 ft at 11:30PM Apr 13, 2024Observed: 4.81 ft at 11:45PM Apr 13, 2024Observed: 4.8 ft at 12:00AM Apr 14, 2024Observed: 4.8 ft at 12:15AM Apr 14, 2024Observed: 4.81 ft at 12:30AM Apr 14, 2024Observed: 4.8 ft at 12:45AM Apr 14, 2024Observed: 4.8 ft at 1:00AM Apr 14, 2024Observed: 4.79 ft at 1:15AM Apr 14, 2024Observed: 4.8 ft at 1:30AM Apr 14, 2024Observed: 4.79 ft at 1:45AM Apr 14, 2024Observed: 4.79 ft at 2:00AM Apr 14, 2024Observed: 4.78 ft at 2:15AM Apr 14, 2024Observed: 4.77 ft at 2:30AM Apr 14, 2024Observed: 4.78 ft at 2:45AM Apr 14, 2024Observed: 4.77 ft at 3:00AM Apr 14, 2024Observed: 4.76 ft at 3:15AM Apr 14, 2024Observed: 4.76 ft at 3:30AM Apr 14, 2024Observed: 4.75 ft at 3:45AM Apr 14, 2024Observed: 4.75 ft at 4:00AM Apr 14, 2024Observed: 4.76 ft at 4:15AM Apr 14, 2024Observed: 4.74 ft at 4:30AM Apr 14, 2024Observed: 4.75 ft at 4:45AM Apr 14, 2024Observed: 4.74 ft at 5:00AM Apr 14, 2024Observed: 4.73 ft at 5:15AM Apr 14, 2024Observed: 4.73 ft at 5:30AM Apr 14, 2024Observed: 4.74 ft at 5:45AM Apr 14, 2024Observed: 4.73 ft at 6:00AM Apr 14, 2024Observed: 4.72 ft at 6:15AM Apr 14, 2024Observed: 4.72 ft at 6:30AM Apr 14, 2024Observed: 4.71 ft at 6:45AM Apr 14, 2024Observed: 4.71 ft at 7:00AM Apr 14, 2024Observed: 4.71 ft at 7:15AM Apr 14, 2024Observed: 4.72 ft at 7:30AM Apr 14, 2024Observed: 4.72 ft at 7:45AM Apr 14, 2024Observed: 4.7 ft at 8:00AM Apr 14, 2024Observed: 4.7 ft at 8:15AM Apr 14, 2024Observed: 4.7 ft at 8:30AM Apr 14, 2024Observed: 4.71 ft at 8:45AM Apr 14, 2024Observed: 4.7 ft at 9:00AM Apr 14, 2024Observed: 4.69 ft at 9:15AM Apr 14, 2024Observed: 4.7 ft at 9:30AM Apr 14, 2024Observed: 4.69 ft at 9:45AM Apr 14, 2024Observed: 4.69 ft at 10:00AM Apr 14, 2024Observed: 4.69 ft at 10:15AM Apr 14, 2024Observed: 4.69 ft at 10:30AM Apr 14, 2024Observed: 4.69 ft at 10:45AM Apr 14, 2024Observed: 4.68 ft at 11:00AM Apr 14, 2024Observed: 4.69 ft at 11:15AM Apr 14, 2024Observed: 4.69 ft at 11:30AM Apr 14, 2024Observed: 4.69 ft at 11:45AM Apr 14, 2024Observed: 4.68 ft at 12:00PM Apr 14, 2024Observed: 4.68 ft at 12:15PM Apr 14, 2024Observed: 4.68 ft at 12:30PM Apr 14, 2024Observed: 4.68 ft at 12:45PM Apr 14, 2024Observed: 4.68 ft at 1:00PM Apr 14, 2024Observed: 4.68 ft at 1:15PM Apr 14, 2024Observed: 4.68 ft at 1:30PM Apr 14, 2024Observed: 4.67 ft at 1:45PM Apr 14, 2024Observed: 4.67 ft at 2:00PM Apr 14, 2024Observed: 4.67 ft at 2:15PM Apr 14, 2024Observed: 4.67 ft at 2:30PM Apr 14, 2024Observed: 4.68 ft at 2:45PM Apr 14, 2024Observed: 4.67 ft at 3:00PM Apr 14, 2024Observed: 4.67 ft at 3:15PM Apr 14, 2024Observed: 4.68 ft at 3:30PM Apr 14, 2024Observed: 4.67 ft at 3:45PM Apr 14, 2024Observed: 4.67 ft at 4:00PM Apr 14, 2024Observed: 4.67 ft at 4:15PM Apr 14, 2024Observed: 4.67 ft at 4:30PM Apr 14, 2024Observed: 4.67 ft at 4:45PM Apr 14, 2024Observed: 4.67 ft at 5:00PM Apr 14, 2024Observed: 4.67 ft at 5:15PM Apr 14, 2024Observed: 4.68 ft at 5:30PM Apr 14, 2024Observed: 4.67 ft at 5:45PM Apr 14, 2024Observed: 4.67 ft at 6:00PM Apr 14, 2024Observed: 4.67 ft at 6:15PM Apr 14, 2024Observed: 4.67 ft at 6:30PM Apr 14, 2024Observed: 4.67 ft at 6:45PM Apr 14, 2024Observed: 4.66 ft at 7:00PM Apr 14, 2024Observed: 4.67 ft at 7:15PM Apr 14, 2024Observed: 4.66 ft at 7:30PM Apr 14, 2024Observed: 4.67 ft at 7:45PM Apr 14, 2024Observed: 4.66 ft at 8:00PM Apr 14, 2024Observed: 4.65 ft at 8:15PM Apr 14, 2024Observed: 4.65 ft at 8:30PM Apr 14, 2024Observed: 4.65 ft at 8:45PM Apr 14, 2024Observed: 4.64 ft at 9:00PM Apr 14, 2024Observed: 4.64 ft at 9:15PM Apr 14, 2024Observed: 4.64 ft at 9:30PM Apr 14, 2024Observed: 4.64 ft at 9:45PM Apr 14, 2024Observed: 4.63 ft at 10:00PM Apr 14, 2024Observed: 4.63 ft at 10:15PM Apr 14, 2024Observed: 4.63 ft at 10:30PM Apr 14, 2024Observed: 4.63 ft at 10:45PM Apr 14, 2024Observed: 4.62 ft at 11:00PM Apr 14, 2024Observed: 4.62 ft at 11:15PM Apr 14, 2024Observed: 4.63 ft at 11:30PM Apr 14, 2024Observed: 4.62 ft at 11:45PM Apr 14, 2024Observed: 4.62 ft at 12:00AM Apr 15, 2024Observed: 4.61 ft at 12:15AM Apr 15, 2024Observed: 4.61 ft at 12:30AM Apr 15, 2024Observed: 4.61 ft at 12:45AM Apr 15, 2024Observed: 4.61 ft at 1:00AM Apr 15, 2024Observed: 4.6 ft at 1:15AM Apr 15, 2024Observed: 4.6 ft at 1:30AM Apr 15, 2024Observed: 4.6 ft at 1:45AM Apr 15, 2024Observed: 4.61 ft at 2:00AM Apr 15, 2024Observed: 4.6 ft at 2:15AM Apr 15, 2024Observed: 4.61 ft at 2:30AM Apr 15, 2024Observed: 4.6 ft at 2:45AM Apr 15, 2024Observed: 4.59 ft at 3:00AM Apr 15, 2024Observed: 4.59 ft at 3:15AM Apr 15, 2024Observed: 4.59 ft at 3:30AM Apr 15, 2024Observed: 4.59 ft at 3:45AM Apr 15, 2024Observed: 4.58 ft at 4:00AM Apr 15, 2024Observed: 4.58 ft at 4:15AM Apr 15, 2024Observed: 4.58 ft at 4:30AM Apr 15, 2024Observed: 4.59 ft at 4:45AM Apr 15, 2024Observed: 4.58 ft at 5:00AM Apr 15, 2024Observed: 4.57 ft at 5:15AM Apr 15, 2024Observed: 4.57 ft at 5:30AM Apr 15, 2024Observed: 4.57 ft at 5:45AM Apr 15, 2024Observed: 4.57 ft at 6:00AM Apr 15, 2024Observed: 4.56 ft at 6:15AM Apr 15, 2024Observed: 4.56 ft at 6:30AM Apr 15, 2024Observed: 4.56 ft at 6:45AM Apr 15, 2024Observed: 4.55 ft at 7:00AM Apr 15, 2024Observed: 4.56 ft at 7:15AM Apr 15, 2024Observed: 4.56 ft at 7:30AM Apr 15, 2024Observed: 4.55 ft at 7:45AM Apr 15, 2024Observed: 4.55 ft at 8:00AM Apr 15, 2024Observed: 4.55 ft at 8:15AM Apr 15, 2024Observed: 4.54 ft at 8:30AM Apr 15, 2024Observed: 4.55 ft at 8:45AM Apr 15, 2024Observed: 4.54 ft at 9:00AM Apr 15, 2024Observed: 4.54 ft at 9:15AM Apr 15, 2024Observed: 4.54 ft at 9:30AM Apr 15, 2024Observed: 4.47 ft at 9:45AM Apr 15, 2024Observed: 4.29 ft at 10:00AM Apr 15, 2024Observed: 4.21 ft at 10:15AM Apr 15, 2024Observed: 4.2 ft at 10:30AM Apr 15, 2024Observed: 4.18 ft at 10:45AM Apr 15, 2024Observed: 4.19 ft at 11:00AM Apr 15, 2024Observed: 4.18 ft at 11:15AM Apr 15, 2024Observed: 4.17 ft at 11:30AM Apr 15, 2024Observed: 4.18 ft at 11:45AM Apr 15, 2024Observed: 4.18 ft at 12:00PM Apr 15, 2024Observed: 4.2 ft at 12:15PM Apr 15, 2024Observed: 4.18 ft at 12:30PM Apr 15, 2024Observed: 4.19 ft at 12:45PM Apr 15, 2024Observed: 4.17 ft at 1:00PM Apr 15, 2024Observed: 4.18 ft at 1:15PM Apr 15, 2024Observed: 4.19 ft at 1:30PM Apr 15, 2024Observed: 4.17 ft at 1:45PM Apr 15, 2024Observed: 4.18 ft at 2:00PM Apr 15, 2024Observed: 4.18 ft at 2:15PM Apr 15, 2024Observed: 4.16 ft at 2:30PM Apr 15, 2024Observed: 4.17 ft at 2:45PM Apr 15, 2024Observed: 4.15 ft at 3:00PM Apr 15, 2024Observed: 4.17 ft at 3:15PM Apr 15, 2024Observed: 4.15 ft at 3:30PM Apr 15, 2024Observed: 4.14 ft at 3:45PM Apr 15, 2024Observed: 4.16 ft at 4:00PM Apr 15, 2024Observed: 4.15 ft at 4:15PM Apr 15, 2024Observed: 4.15 ft at 4:30PM Apr 15, 2024Observed: 4.14 ft at 4:45PM Apr 15, 2024Observed: 4.14 ft at 5:00PM Apr 15, 2024Observed: 4.14 ft at 5:15PM Apr 15, 2024Observed: 4.13 ft at 5:30PM Apr 15, 2024Observed: 4.13 ft at 5:45PM Apr 15, 2024Observed: 4.13 ft at 6:00PM Apr 15, 2024Observed: 4.1 ft at 6:15PM Apr 15, 2024Observed: 4.12 ft at 6:30PM Apr 15, 2024Observed: 4.11 ft at 6:45PM Apr 15, 2024Observed: 4.11 ft at 7:00PM Apr 15, 2024Observed: 4.12 ft at 7:15PM Apr 15, 2024Observed: 4.11 ft at 7:30PM Apr 15, 2024Observed: 4.1 ft at 7:45PM Apr 15, 2024Observed: 4.11 ft at 8:00PM Apr 15, 2024Observed: 4.08 ft at 8:15PM Apr 15, 2024Observed: 4.1 ft at 8:30PM Apr 15, 2024Observed: 4.09 ft at 8:45PM Apr 15, 2024Observed: 4.11 ft at 9:00PM Apr 15, 2024Observed: 4.09 ft at 9:15PM Apr 15, 2024Observed: 4.08 ft at 9:30PM Apr 15, 2024Observed: 4.08 ft at 9:45PM Apr 15, 2024Observed: 4.07 ft at 10:00PM Apr 15, 2024Observed: 4.07 ft at 10:15PM Apr 15, 2024Observed: 4.07 ft at 10:30PM Apr 15, 2024Observed: 4.06 ft at 10:45PM Apr 15, 2024Observed: 4.06 ft at 11:00PM Apr 15, 2024Observed: 4.06 ft at 11:15PM Apr 15, 2024Observed: 4.06 ft at 11:30PM Apr 15, 2024Observed: 4.05 ft at 11:45PM Apr 15, 2024Observed: 4.05 ft at 12:00AM Apr 16, 2024Observed: 4.05 ft at 12:15AM Apr 16, 2024Observed: 4.07 ft at 12:30AM Apr 16, 2024Observed: 4.04 ft at 12:45AM Apr 16, 2024Observed: 4.04 ft at 1:00AM Apr 16, 2024Observed: 4.03 ft at 1:15AM Apr 16, 2024Observed: 4.04 ft at 1:30AM Apr 16, 2024Observed: 4.05 ft at 1:45AM Apr 16, 2024Observed: 4.03 ft at 2:00AM Apr 16, 2024Observed: 4.03 ft at 2:15AM Apr 16, 2024Observed: 4.02 ft at 2:30AM Apr 16, 2024Observed: 4.02 ft at 2:45AM Apr 16, 2024Observed: 4.02 ft at 3:00AM Apr 16, 2024Observed: 4.01 ft at 3:15AM Apr 16, 2024Observed: 4.03 ft at 3:30AM Apr 16, 2024Observed: 4.01 ft at 3:45AM Apr 16, 2024Observed: 4.01 ft at 4:00AM Apr 16, 2024Observed: 4.01 ft at 4:15AM Apr 16, 2024Observed: 4.01 ft at 4:30AM Apr 16, 2024Observed: 4 ft at 4:45AM Apr 16, 2024Observed: 4 ft at 5:00AM Apr 16, 2024Observed: 4 ft at 5:15AM Apr 16, 2024Observed: 4 ft at 5:30AM Apr 16, 2024Observed: 4 ft at 5:45AM Apr 16, 2024Observed: 3.99 ft at 6:00AM Apr 16, 2024Observed: 3.99 ft at 6:15AM Apr 16, 2024Observed: 3.99 ft at 6:30AM Apr 16, 2024Observed: 3.99 ft at 6:45AM Apr 16, 2024Observed: 3.97 ft at 7:00AM Apr 16, 2024Observed: 3.98 ft at 7:15AM Apr 16, 2024Observed: 3.98 ft at 7:30AM Apr 16, 2024Observed: 3.98 ft at 7:45AM Apr 16, 2024Observed: 3.97 ft at 8:00AM Apr 16, 2024Observed: 3.97 ft at 8:15AM Apr 16, 2024Observed: 3.95 ft at 8:30AM Apr 16, 2024Observed: 3.97 ft at 8:45AM Apr 16, 2024Observed: 3.97 ft at 9:00AM Apr 16, 2024Observed: 3.96 ft at 9:15AM Apr 16, 2024Observed: 3.96 ft at 9:30AM Apr 16, 2024Observed: 3.97 ft at 9:45AM Apr 16, 2024Observed: 3.96 ft at 10:00AM Apr 16, 2024Observed: 3.95 ft at 10:15AM Apr 16, 2024Observed: 3.95 ft at 10:30AM Apr 16, 2024Observed: 3.95 ft at 10:45AM Apr 16, 2024Observed: 3.95 ft at 11:00AM Apr 16, 2024Observed: 3.95 ft at 11:15AM Apr 16, 2024Observed: 3.94 ft at 11:30AM Apr 16, 2024Observed: 3.95 ft at 11:45AM Apr 16, 2024Observed: 3.94 ft at 12:00PM Apr 16, 2024Observed: 3.95 ft at 12:15PM Apr 16, 2024Observed: 3.93 ft at 12:30PM Apr 16, 2024Observed: 3.94 ft at 12:45PM Apr 16, 2024Observed: 3.93 ft at 1:00PM Apr 16, 2024Observed: 3.93 ft at 1:15PM Apr 16, 2024Observed: 3.93 ft at 1:30PM Apr 16, 2024Observed: 3.92 ft at 1:45PM Apr 16, 2024Observed: 3.92 ft at 2:00PM Apr 16, 2024Observed: 3.92 ft at 2:15PM Apr 16, 2024Observed: 3.92 ft at 2:30PM Apr 16, 2024Observed: 3.91 ft at 2:45PM Apr 16, 2024Observed: 3.91 ft at 3:00PM Apr 16, 2024Observed: 3.92 ft at 3:15PM Apr 16, 2024Observed: 3.92 ft at 3:30PM Apr 16, 2024Observed: 3.9 ft at 3:45PM Apr 16, 2024Observed: 3.9 ft at 4:00PM Apr 16, 2024Observed: 3.9 ft at 4:15PM Apr 16, 2024Observed: 3.89 ft at 4:30PM Apr 16, 2024Observed: 3.89 ft at 4:45PM Apr 16, 2024Observed: 3.89 ft at 5:00PM Apr 16, 2024Observed: 3.9 ft at 5:15PM Apr 16, 2024Observed: 3.89 ft at 5:30PM Apr 16, 2024Observed: 3.88 ft at 5:45PM Apr 16, 2024Observed: 3.88 ft at 6:00PM Apr 16, 2024Observed: 3.89 ft at 6:15PM Apr 16, 2024Observed: 3.87 ft at 6:30PM Apr 16, 2024Observed: 3.88 ft at 6:45PM Apr 16, 2024Observed: 3.87 ft at 7:00PM Apr 16, 2024Observed: 3.87 ft at 7:15PM Apr 16, 2024Observed: 3.86 ft at 7:30PM Apr 16, 2024Observed: 3.88 ft at 7:45PM Apr 16, 2024Observed: 3.87 ft at 8:00PM Apr 16, 2024Observed: 3.87 ft at 8:15PM Apr 16, 2024Observed: 3.86 ft at 8:30PM Apr 16, 2024Observed: 3.88 ft at 8:45PM Apr 16, 2024Observed: 3.87 ft at 9:00PM Apr 16, 2024Observed: 3.86 ft at 9:15PM Apr 16, 2024Observed: 3.86 ft at 9:30PM Apr 16, 2024Observed: 3.85 ft at 9:45PM Apr 16, 2024Observed: 3.86 ft at 10:00PM Apr 16, 2024Observed: 3.84 ft at 10:15PM Apr 16, 2024Observed: 3.84 ft at 10:30PM Apr 16, 2024Observed: 3.82 ft at 10:45PM Apr 16, 2024Observed: 3.84 ft at 11:00PM Apr 16, 2024Observed: 3.83 ft at 11:15PM Apr 16, 2024Observed: 3.83 ft at 11:30PM Apr 16, 2024Observed: 3.82 ft at 11:45PM Apr 16, 2024Observed: 3.82 ft at 12:00AM Apr 17, 2024Observed: 3.82 ft at 12:15AM Apr 17, 2024Observed: 3.83 ft at 12:30AM Apr 17, 2024Observed: 3.84 ft at 12:45AM Apr 17, 2024Observed: 3.84 ft at 1:00AM Apr 17, 2024Observed: 3.86 ft at 1:15AM Apr 17, 2024Observed: 3.86 ft at 1:30AM Apr 17, 2024Observed: 3.89 ft at 1:45AM Apr 17, 2024Observed: 3.88 ft at 2:00AM Apr 17, 2024Observed: 3.89 ft at 2:15AM Apr 17, 2024Observed: 3.88 ft at 2:30AM Apr 17, 2024Observed: 3.9 ft at 2:45AM Apr 17, 2024Observed: 3.89 ft at 3:00AM Apr 17, 2024Observed: 3.89 ft at 3:15AM Apr 17, 2024Observed: 3.89 ft at 3:30AM Apr 17, 2024Observed: 3.89 ft at 3:45AM Apr 17, 2024Observed: 3.89 ft at 4:00AM Apr 17, 2024Observed: 3.89 ft at 4:15AM Apr 17, 2024Observed: 3.89 ft at 4:30AM Apr 17, 2024Observed: 3.9 ft at 4:45AM Apr 17, 2024Observed: 3.9 ft at 5:00AM Apr 17, 2024Observed: 3.9 ft at 5:15AM Apr 17, 2024Observed: 3.9 ft at 5:30AM Apr 17, 2024Observed: 3.9 ft at 5:45AM Apr 17, 2024Observed: 3.89 ft at 6:00AM Apr 17, 2024Observed: 3.89 ft at 6:15AM Apr 17, 2024Observed: 3.9 ft at 6:30AM Apr 17, 2024Observed: 3.89 ft at 6:45AM Apr 17, 2024Observed: 3.89 ft at 7:00AM Apr 17, 2024Observed: 3.89 ft at 7:15AM Apr 17, 2024Observed: 3.88 ft at 7:30AM Apr 17, 2024Observed: 3.87 ft at 7:45AM Apr 17, 2024Observed: 3.85 ft at 8:00AM Apr 17, 2024Observed: 3.84 ft at 8:15AM Apr 17, 2024Observed: 3.84 ft at 8:30AM Apr 17, 2024Observed: 3.82 ft at 8:45AM Apr 17, 2024Observed: 3.82 ft at 9:00AM Apr 17, 2024Observed: 3.79 ft at 9:15AM Apr 17, 2024Observed: 3.79 ft at 9:30AM Apr 17, 2024Observed: 3.8 ft at 9:45AM Apr 17, 2024Observed: 3.77 ft at 10:00AM Apr 17, 2024Observed: 3.77 ft at 10:15AM Apr 17, 2024Observed: 3.76 ft at 10:30AM Apr 17, 2024Observed: 3.76 ft at 10:45AM Apr 17, 2024Observed: 3.75 ft at 11:00AM Apr 17, 2024Observed: 3.74 ft at 11:15AM Apr 17, 2024Observed: 3.75 ft at 11:30AM Apr 17, 2024Observed: 3.74 ft at 11:45AM Apr 17, 2024Observed: 3.73 ft at 12:00PM Apr 17, 2024Observed: 3.72 ft at 12:15PM Apr 17, 2024Observed: 3.71 ft at 12:30PM Apr 17, 2024Observed: 3.7 ft at 12:45PM Apr 17, 2024Observed: 3.61 ft at 1:00PM Apr 17, 2024Observed: 3.58 ft at 1:15PM Apr 17, 2024Observed: 3.56 ft at 1:30PM Apr 17, 2024Observed: 3.57 ft at 1:45PM Apr 17, 2024Observed: 3.55 ft at 2:00PM Apr 17, 2024Observed: 3.55 ft at 2:15PM Apr 17, 2024Observed: 3.54 ft at 2:30PM Apr 17, 2024Observed: 3.55 ft at 2:45PM Apr 17, 2024Observed: 3.53 ft at 3:00PM Apr 17, 2024Observed: 3.53 ft at 3:15PM Apr 17, 2024Observed: 3.54 ft at 3:30PM Apr 17, 2024Observed: 3.51 ft at 3:45PM Apr 17, 2024Observed: 3.51 ft at 4:00PM Apr 17, 2024Observed: 3.54 ft at 4:15PM Apr 17, 2024Observed: 3.52 ft at 4:30PM Apr 17, 2024Observed: 3.56 ft at 4:45PM Apr 17, 2024Observed: 3.58 ft at 5:00PM Apr 17, 2024Observed: 3.58 ft at 5:15PM Apr 17, 2024Observed: 3.56 ft at 5:30PM Apr 17, 2024Observed: 3.57 ft at 5:45PM Apr 17, 2024Observed: 3.55 ft at 6:00PM Apr 17, 2024Observed: 3.56 ft at 6:15PM Apr 17, 2024Observed: 3.55 ft at 6:30PM Apr 17, 2024Observed: 3.6 ft at 6:45PM Apr 17, 2024Observed: 3.64 ft at 7:00PM Apr 17, 2024Observed: 3.61 ft at 7:15PM Apr 17, 2024Observed: 3.6 ft at 7:30PM Apr 17, 2024Observed: 3.61 ft at 7:45PM Apr 17, 2024Observed: 3.62 ft at 8:00PM Apr 17, 2024Observed: 3.66 ft at 8:15PM Apr 17, 2024Observed: 3.7 ft at 8:30PM Apr 17, 2024Observed: 3.71 ft at 8:45PM Apr 17, 2024Observed: 3.71 ft at 9:00PM Apr 17, 2024Observed: 3.71 ft at 9:15PM Apr 17, 2024Observed: 3.72 ft at 9:30PM Apr 17, 2024Observed: 3.72 ft at 9:45PM Apr 17, 2024Observed: 3.73 ft at 10:00PM Apr 17, 2024Observed: 3.72 ft at 10:15PM Apr 17, 2024Observed: 3.73 ft at 10:30PM Apr 17, 2024Observed: 3.72 ft at 10:45PM Apr 17, 2024Observed: 3.72 ft at 11:00PM Apr 17, 2024Observed: 3.72 ft at 11:15PM Apr 17, 2024Observed: 3.72 ft at 11:30PM Apr 17, 2024Observed: 3.72 ft at 11:45PM Apr 17, 2024Observed: 3.73 ft at 12:00AM Apr 18, 2024Observed: 3.72 ft at 12:15AM Apr 18, 2024Observed: 3.73 ft at 12:30AM Apr 18, 2024Observed: 3.72 ft at 12:45AM Apr 18, 2024Observed: 3.72 ft at 1:00AM Apr 18, 2024Observed: 3.73 ft at 1:15AM Apr 18, 2024Observed: 3.73 ft at 1:30AM Apr 18, 2024Observed: 3.73 ft at 1:45AM Apr 18, 2024Observed: 3.74 ft at 2:00AM Apr 18, 2024Observed: 3.74 ft at 2:15AM Apr 18, 2024Observed: 3.74 ft at 2:30AM Apr 18, 2024Observed: 3.74 ft at 2:45AM Apr 18, 2024Observed: 3.73 ft at 3:00AM Apr 18, 2024Observed: 3.74 ft at 3:15AM Apr 18, 2024Observed: 3.74 ft at 3:30AM Apr 18, 2024Observed: 3.74 ft at 3:45AM Apr 18, 2024Observed: 3.74 ft at 4:00AM Apr 18, 2024Observed: 3.75 ft at 4:15AM Apr 18, 2024Observed: 3.74 ft at 4:30AM Apr 18, 2024Observed: 3.74 ft at 4:45AM Apr 18, 2024Observed: 3.74 ft at 5:00AM Apr 18, 2024Observed: 3.74 ft at 5:15AM Apr 18, 2024Observed: 3.75 ft at 5:30AM Apr 18, 2024Observed: 3.74 ft at 5:45AM Apr 18, 2024Observed: 3.75 ft at 6:00AM Apr 18, 2024Observed: 3.75 ft at 6:15AM Apr 18, 2024Observed: 3.74 ft at 6:30AM Apr 18, 2024Observed: 3.74 ft at 6:45AM Apr 18, 2024Observed: 3.74 ft at 7:00AM Apr 18, 2024Observed: 3.75 ft at 7:15AM Apr 18, 2024Observed: 3.74 ft at 7:30AM Apr 18, 2024Observed: 3.74 ft at 7:45AM Apr 18, 2024Observed: 3.76 ft at 8:00AM Apr 18, 2024Observed: 3.81 ft at 8:15AM Apr 18, 2024Observed: 3.83 ft at 8:30AM Apr 18, 2024Observed: 3.82 ft at 8:45AM Apr 18, 2024Observed: 3.82 ft at 9:00AM Apr 18, 2024Observed: 3.84 ft at 9:15AM Apr 18, 2024Observed: 3.8 ft at 9:30AM Apr 18, 2024Observed: 3.81 ft at 9:45AM Apr 18, 2024Observed: 3.81 ft at 10:00AM Apr 18, 2024Observed: 3.81 ft at 10:15AM Apr 18, 2024Observed: 3.83 ft at 10:30AM Apr 18, 2024Observed: 3.84 ft at 10:45AM Apr 18, 2024Observed: 3.84 ft at 11:00AM Apr 18, 2024Observed: 3.84 ft at 11:15AM Apr 18, 2024Observed: 3.85 ft at 11:30AM Apr 18, 2024Observed: 3.86 ft at 11:45AM Apr 18, 2024Observed: 3.86 ft at 12:00PM Apr 18, 2024Observed: 3.86 ft at 12:15PM Apr 18, 2024Observed: 3.86 ft at 12:30PM Apr 18, 2024Observed: 3.86 ft at 12:45PM Apr 18, 2024Observed: 3.87 ft at 1:00PM Apr 18, 2024Observed: 3.87 ft at 1:15PM Apr 18, 2024Observed: 3.87 ft at 1:30PM Apr 18, 2024Observed: 3.86 ft at 1:45PM Apr 18, 2024Observed: 3.86 ft at 2:00PM Apr 18, 2024Observed: 3.87 ft at 2:15PM Apr 18, 2024Observed: 3.87 ft at 2:30PM Apr 18, 2024Observed: 3.87 ft at 2:45PM Apr 18, 2024Observed: 3.87 ft at 3:00PM Apr 18, 2024Observed: 3.86 ft at 3:15PM Apr 18, 2024Observed: 3.87 ft at 3:30PM Apr 18, 2024Observed: 3.86 ft at 3:45PM Apr 18, 2024Observed: 3.86 ft at 4:00PM Apr 18, 2024Observed: 3.85 ft at 4:15PM Apr 18, 2024Observed: 3.86 ft at 4:30PM Apr 18, 2024Observed: 3.85 ft at 4:45PM Apr 18, 2024Observed: 3.86 ft at 5:00PM Apr 18, 2024Observed: 3.86 ft at 5:15PM Apr 18, 2024Observed: 3.86 ft at 5:30PM Apr 18, 2024Observed: 3.86 ft at 5:45PM Apr 18, 2024Observed: 3.87 ft at 6:00PM Apr 18, 2024Observed: 3.85 ft at 6:15PM Apr 18, 2024Observed: 3.85 ft at 6:30PM Apr 18, 2024Observed: 3.86 ft at 6:45PM Apr 18, 2024Observed: 3.86 ft at 7:00PM Apr 18, 2024Observed: 3.86 ft at 7:15PM Apr 18, 2024Observed: 3.86 ft at 7:30PM Apr 18, 2024Observed: 3.86 ft at 7:45PM Apr 18, 2024Observed: 3.86 ft at 8:00PM Apr 18, 2024Observed: 3.87 ft at 8:15PM Apr 18, 2024USGS--Water Resources of the United StatesMHYI2(plotting HTIRG) Graph Created (8:40PM Apr 18, 2024)ObservedLatest observed value: 3.87 ft at 8:15 PM CDT 18-Apr-2024. Flood Stage is 4 ft
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About this graph
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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