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Hydrograph River at a Glance Download
Susquehanna River at Conowingo Dam Stage (ft)Flow (kcfs)Observed: 13.76 ft at 2:30PM Mar 18, 2023Observed: 13.76 ft at 2:45PM Mar 18, 2023Observed: 13.76 ft at 3:00PM Mar 18, 2023Observed: 14.24 ft at 3:15PM Mar 18, 2023Observed: 14.48 ft at 3:30PM Mar 18, 2023Observed: 14.58 ft at 3:45PM Mar 18, 2023Observed: 14.6 ft at 4:00PM Mar 18, 2023Observed: 14.62 ft at 4:15PM Mar 18, 2023Observed: 14.63 ft at 4:30PM Mar 18, 2023Observed: 14.65 ft at 4:45PM Mar 18, 2023Observed: 14.63 ft at 5:00PM Mar 18, 2023Observed: 14.64 ft at 5:15PM Mar 18, 2023Observed: 14.64 ft at 5:30PM Mar 18, 2023Observed: 14.63 ft at 5:45PM Mar 18, 2023Observed: 14.63 ft at 6:00PM Mar 18, 2023Observed: 14.64 ft at 6:15PM Mar 18, 2023Observed: 14.65 ft at 6:30PM Mar 18, 2023Observed: 14.64 ft at 6:45PM Mar 18, 2023Observed: 14.64 ft at 7:00PM Mar 18, 2023Observed: 14.65 ft at 7:15PM Mar 18, 2023Observed: 14.63 ft at 7:30PM Mar 18, 2023Observed: 14.66 ft at 7:45PM Mar 18, 2023Observed: 14.63 ft at 8:00PM Mar 18, 2023Observed: 14.41 ft at 8:15PM Mar 18, 2023Observed: 14.41 ft at 8:16PM Mar 18, 2023Observed: 14.04 ft at 8:30PM Mar 18, 2023Observed: 13.92 ft at 8:45PM Mar 18, 2023Observed: 13.86 ft at 9:00PM Mar 18, 2023Observed: 13.83 ft at 9:15PM Mar 18, 2023Observed: 13.82 ft at 9:30PM Mar 18, 2023Observed: 13.84 ft at 9:45PM Mar 18, 2023Observed: 13.82 ft at 10:00PM Mar 18, 2023Observed: 13.83 ft at 10:15PM Mar 18, 2023Observed: 13.82 ft at 10:30PM Mar 18, 2023Observed: 13.86 ft at 10:45PM Mar 18, 2023Observed: 13.85 ft at 11:00PM Mar 18, 2023Observed: 13.84 ft at 11:15PM Mar 18, 2023Observed: 13.82 ft at 11:30PM Mar 18, 2023Observed: 13.82 ft at 11:45PM Mar 18, 2023Observed: 13.83 ft at 12:00AM Mar 19, 2023Observed: 12.95 ft at 12:15AM Mar 19, 2023Observed: 12.19 ft at 12:30AM Mar 19, 2023Observed: 11.78 ft at 12:45AM Mar 19, 2023Observed: 11.66 ft at 1:00AM Mar 19, 2023Observed: 11.61 ft at 1:15AM Mar 19, 2023Observed: 11.59 ft at 1:30AM Mar 19, 2023Observed: 11.58 ft at 1:45AM Mar 19, 2023Observed: 11.58 ft at 2:00AM Mar 19, 2023Observed: 10.78 ft at 2:15AM Mar 19, 2023Observed: 10.18 ft at 2:30AM Mar 19, 2023Observed: 9.91 ft at 2:45AM Mar 19, 2023Observed: 9.83 ft at 3:00AM Mar 19, 2023Observed: 9.78 ft at 3:15AM Mar 19, 2023Observed: 9.76 ft at 3:30AM Mar 19, 2023Observed: 9.74 ft at 3:45AM Mar 19, 2023Observed: 9.74 ft at 4:00AM Mar 19, 2023Observed: 9.73 ft at 4:15AM Mar 19, 2023Observed: 9.73 ft at 4:16AM Mar 19, 2023Observed: 9.72 ft at 4:30AM Mar 19, 2023Observed: 9.71 ft at 4:45AM Mar 19, 2023Observed: 9.71 ft at 5:00AM Mar 19, 2023Observed: 9.71 ft at 5:15AM Mar 19, 2023Observed: 9.71 ft at 5:30AM Mar 19, 2023Observed: 9.71 ft at 5:45AM Mar 19, 2023Observed: 9.74 ft at 6:00AM Mar 19, 2023Observed: 10.94 ft at 6:15AM Mar 19, 2023Observed: 11.86 ft at 6:30AM Mar 19, 2023Observed: 12.27 ft at 6:45AM Mar 19, 2023Observed: 12.35 ft at 7:00AM Mar 19, 2023Observed: 12.4 ft at 7:15AM Mar 19, 2023Observed: 12.43 ft at 7:30AM Mar 19, 2023Observed: 12.44 ft at 7:45AM Mar 19, 2023Observed: 12.44 ft at 8:00AM Mar 19, 2023Observed: 12.44 ft at 8:15AM Mar 19, 2023Observed: 12.44 ft at 8:30AM Mar 19, 2023Observed: 12.44 ft at 8:45AM Mar 19, 2023Observed: 12.44 ft at 9:00AM Mar 19, 2023Observed: 12.44 ft at 9:15AM Mar 19, 2023Observed: 12.45 ft at 9:30AM Mar 19, 2023Observed: 12.45 ft at 9:45AM Mar 19, 2023Observed: 12.45 ft at 10:00AM Mar 19, 2023Observed: 12.45 ft at 10:15AM Mar 19, 2023Observed: 12.45 ft at 10:30AM Mar 19, 2023Observed: 12.45 ft at 10:45AM Mar 19, 2023Observed: 12.45 ft at 11:00AM Mar 19, 2023Observed: 12.45 ft at 11:15AM Mar 19, 2023Observed: 12.44 ft at 11:30AM Mar 19, 2023Observed: 12.45 ft at 11:45AM Mar 19, 2023Observed: 12.45 ft at 12:00PM Mar 19, 2023Observed: 12.45 ft at 12:15PM Mar 19, 2023Observed: 12.45 ft at 12:16PM Mar 19, 2023Observed: 12.44 ft at 12:30PM Mar 19, 2023Observed: 12.45 ft at 12:45PM Mar 19, 2023Observed: 12.46 ft at 1:00PM Mar 19, 2023Observed: 12.7 ft at 1:15PM Mar 19, 2023Observed: 12.97 ft at 1:30PM Mar 19, 2023Observed: 13.1 ft at 1:45PM Mar 19, 2023Observed: 13.15 ft at 2:00PM Mar 19, 2023Observed: 13.15 ft at 2:15PM Mar 19, 2023Observed: 13.17 ft at 2:30PM Mar 19, 2023Observed: 13.18 ft at 2:45PM Mar 19, 2023Observed: 13.18 ft at 3:00PM Mar 19, 2023Observed: 13.16 ft at 3:15PM Mar 19, 2023Observed: 13.17 ft at 3:30PM Mar 19, 2023Observed: 13.17 ft at 3:45PM Mar 19, 2023Observed: 13.18 ft at 4:00PM Mar 19, 2023Observed: 13.17 ft at 4:15PM Mar 19, 2023Observed: 13.18 ft at 4:30PM Mar 19, 2023Observed: 13.17 ft at 4:45PM Mar 19, 2023Observed: 13.19 ft at 5:00PM Mar 19, 2023Observed: 13.18 ft at 5:15PM Mar 19, 2023Observed: 13.19 ft at 5:30PM Mar 19, 2023Observed: 13.18 ft at 5:45PM Mar 19, 2023Observed: 13.22 ft at 6:00PM Mar 19, 2023Observed: 13.75 ft at 6:15PM Mar 19, 2023Observed: 13.94 ft at 6:30PM Mar 19, 2023Observed: 13.98 ft at 6:45PM Mar 19, 2023Observed: 13.99 ft at 7:00PM Mar 19, 2023Observed: 14.02 ft at 7:15PM Mar 19, 2023Observed: 14.02 ft at 7:30PM Mar 19, 2023Observed: 14.03 ft at 7:45PM Mar 19, 2023Observed: 14.02 ft at 8:00PM Mar 19, 2023Observed: 14.02 ft at 8:15PM Mar 19, 2023Observed: 14.02 ft at 8:16PM Mar 19, 2023Observed: 14.01 ft at 8:30PM Mar 19, 2023Observed: 14.02 ft at 8:45PM Mar 19, 2023Observed: 14.02 ft at 9:00PM Mar 19, 2023Observed: 14.02 ft at 9:15PM Mar 19, 2023Observed: 14.03 ft at 9:30PM Mar 19, 2023Observed: 14.02 ft at 9:45PM Mar 19, 2023Observed: 14.08 ft at 10:00PM Mar 19, 2023Observed: 14.21 ft at 10:15PM Mar 19, 2023Observed: 14.1 ft at 10:30PM Mar 19, 2023Observed: 14.05 ft at 10:45PM Mar 19, 2023Observed: 14.04 ft at 11:00PM Mar 19, 2023Observed: 14.05 ft at 11:15PM Mar 19, 2023Observed: 14.06 ft at 11:30PM Mar 19, 2023Observed: 14.03 ft at 11:45PM Mar 19, 2023Observed: 14.02 ft at 12:00AM Mar 20, 2023Observed: 13.29 ft at 12:15AM Mar 20, 2023Observed: 12.49 ft at 12:30AM Mar 20, 2023Observed: 12.02 ft at 12:45AM Mar 20, 2023Observed: 11.86 ft at 1:00AM Mar 20, 2023Observed: 11.82 ft at 1:15AM Mar 20, 2023Observed: 11.8 ft at 1:30AM Mar 20, 2023Observed: 11.78 ft at 1:45AM Mar 20, 2023Observed: 11.78 ft at 2:00AM Mar 20, 2023Observed: 11.79 ft at 2:15AM Mar 20, 2023Observed: 11.78 ft at 2:30AM Mar 20, 2023Observed: 11.78 ft at 2:45AM Mar 20, 2023Observed: 11.78 ft at 3:00AM Mar 20, 2023Observed: 11.78 ft at 3:15AM Mar 20, 2023Observed: 11.78 ft at 3:30AM Mar 20, 2023Observed: 11.78 ft at 3:45AM Mar 20, 2023Observed: 11.25 ft at 4:00AM Mar 20, 2023Observed: 10.51 ft at 4:15AM Mar 20, 2023Observed: 10.1 ft at 4:30AM Mar 20, 2023Observed: 9.95 ft at 4:45AM Mar 20, 2023Observed: 9.9 ft at 5:00AM Mar 20, 2023Observed: 10.24 ft at 5:15AM Mar 20, 2023Observed: 12.3 ft at 5:30AM Mar 20, 2023Observed: 13.92 ft at 5:45AM Mar 20, 2023Observed: 14.98 ft at 6:00AM Mar 20, 2023Observed: 15.46 ft at 6:15AM Mar 20, 2023Observed: 15.58 ft at 6:30AM Mar 20, 2023Observed: 15.59 ft at 6:45AM Mar 20, 2023Observed: 15.61 ft at 7:00AM Mar 20, 2023Observed: 15.6 ft at 7:15AM Mar 20, 2023Observed: 15.6 ft at 7:30AM Mar 20, 2023Observed: 15.62 ft at 7:45AM Mar 20, 2023Observed: 15.6 ft at 8:00AM Mar 20, 2023Observed: 15.6 ft at 8:15AM Mar 20, 2023Observed: 15.59 ft at 8:30AM Mar 20, 2023Observed: 15.6 ft at 8:45AM Mar 20, 2023Observed: 15.58 ft at 9:00AM Mar 20, 2023Observed: 15.59 ft at 9:15AM Mar 20, 2023Observed: 15.6 ft at 9:30AM Mar 20, 2023Observed: 15.6 ft at 9:45AM Mar 20, 2023Observed: 15.6 ft at 10:00AM Mar 20, 2023Observed: 15.6 ft at 10:15AM Mar 20, 2023Observed: 15.59 ft at 10:30AM Mar 20, 2023Observed: 15.59 ft at 10:45AM Mar 20, 2023Observed: 15.63 ft at 11:00AM Mar 20, 2023Observed: 14.79 ft at 11:15AM Mar 20, 2023Observed: 13.86 ft at 11:30AM Mar 20, 2023Observed: 13.26 ft at 11:45AM Mar 20, 2023Observed: 13.09 ft at 12:00PM Mar 20, 2023Observed: 13.04 ft at 12:15PM Mar 20, 2023Observed: 13.04 ft at 12:16PM Mar 20, 2023Observed: 13.02 ft at 12:30PM Mar 20, 2023Observed: 13.02 ft at 12:45PM Mar 20, 2023Observed: 13.02 ft at 1:00PM Mar 20, 2023Observed: 13.02 ft at 1:15PM Mar 20, 2023Observed: 13.02 ft at 1:30PM Mar 20, 2023Observed: 13.02 ft at 1:45PM Mar 20, 2023Observed: 13.03 ft at 2:00PM Mar 20, 2023Observed: 13.03 ft at 2:15PM Mar 20, 2023Observed: 13.02 ft at 2:30PM Mar 20, 2023Observed: 13.02 ft at 2:45PM Mar 20, 2023Observed: 13.13 ft at 3:00PM Mar 20, 2023Observed: 13.57 ft at 3:15PM Mar 20, 2023Observed: 13.79 ft at 3:30PM Mar 20, 2023Observed: 13.86 ft at 3:45PM Mar 20, 2023Observed: 13.9 ft at 4:00PM Mar 20, 2023Observed: 13.92 ft at 4:15PM Mar 20, 2023Observed: 13.9 ft at 4:30PM Mar 20, 2023Observed: 13.93 ft at 4:45PM Mar 20, 2023Observed: 14.1 ft at 5:00PM Mar 20, 2023Observed: 15.16 ft at 5:15PM Mar 20, 2023Observed: 15.71 ft at 5:30PM Mar 20, 2023Observed: 15.89 ft at 5:45PM Mar 20, 2023Observed: 15.91 ft at 6:00PM Mar 20, 2023Observed: 15.93 ft at 6:15PM Mar 20, 2023Observed: 15.92 ft at 6:30PM Mar 20, 2023Observed: 15.92 ft at 6:45PM Mar 20, 2023Observed: 15.94 ft at 7:00PM Mar 20, 2023Observed: 15.94 ft at 7:15PM Mar 20, 2023Observed: 15.93 ft at 7:30PM Mar 20, 2023Observed: 15.95 ft at 7:45PM Mar 20, 2023Observed: 15.94 ft at 8:00PM Mar 20, 2023Observed: 15.92 ft at 8:15PM Mar 20, 2023Observed: 15.92 ft at 8:16PM Mar 20, 2023Observed: 15.94 ft at 8:30PM Mar 20, 2023Observed: 15.94 ft at 8:45PM Mar 20, 2023Observed: 15.94 ft at 9:00PM Mar 20, 2023Observed: 15.94 ft at 9:15PM Mar 20, 2023Observed: 15.94 ft at 9:30PM Mar 20, 2023Observed: 15.94 ft at 9:45PM Mar 20, 2023Observed: 15.92 ft at 10:00PM Mar 20, 2023Observed: 15.94 ft at 10:15PM Mar 20, 2023Observed: 15.94 ft at 10:30PM Mar 20, 2023Observed: 15.93 ft at 10:45PM Mar 20, 2023Observed: 15.9 ft at 11:00PM Mar 20, 2023Observed: 15.02 ft at 11:15PM Mar 20, 2023Observed: 14.02 ft at 11:30PM Mar 20, 2023Observed: 13.39 ft at 11:45PM Mar 20, 2023Observed: 13.17 ft at 12:00AM Mar 21, 2023Observed: 13.12 ft at 12:15AM Mar 21, 2023Observed: 13.1 ft at 12:30AM Mar 21, 2023Observed: 13.09 ft at 12:45AM Mar 21, 2023Observed: 13.1 ft at 1:00AM Mar 21, 2023Observed: 13.1 ft at 1:15AM Mar 21, 2023Observed: 13.09 ft at 1:30AM Mar 21, 2023Observed: 13.09 ft at 1:45AM Mar 21, 2023Observed: 13.09 ft at 2:00AM Mar 21, 2023Observed: 13.1 ft at 2:15AM Mar 21, 2023Observed: 13.09 ft at 2:30AM Mar 21, 2023Observed: 13.09 ft at 2:45AM Mar 21, 2023Observed: 13.08 ft at 3:00AM Mar 21, 2023Observed: 12.18 ft at 3:15AM Mar 21, 2023Observed: 11.46 ft at 3:30AM Mar 21, 2023Observed: 11.06 ft at 3:45AM Mar 21, 2023Observed: 10.94 ft at 4:00AM Mar 21, 2023Observed: 10.9 ft at 4:15AM Mar 21, 2023Observed: 10.9 ft at 4:16AM Mar 21, 2023Observed: 10.87 ft at 4:30AM Mar 21, 2023Observed: 10.86 ft at 4:45AM Mar 21, 2023Observed: 11.19 ft at 5:00AM Mar 21, 2023Observed: 13.06 ft at 5:15AM Mar 21, 2023Observed: 14.54 ft at 5:30AM Mar 21, 2023Observed: 15.48 ft at 5:45AM Mar 21, 2023Observed: 15.84 ft at 6:00AM Mar 21, 2023Observed: 15.9 ft at 6:15AM Mar 21, 2023Observed: 15.93 ft at 6:30AM Mar 21, 2023Observed: 15.94 ft at 6:45AM Mar 21, 2023Observed: 15.94 ft at 7:00AM Mar 21, 2023Observed: 15.94 ft at 7:15AM Mar 21, 2023Observed: 15.94 ft at 7:30AM Mar 21, 2023Observed: 15.95 ft at 7:45AM Mar 21, 2023Highest Observation: 15.96 ft at 8:00AM Mar 21, 2023Observed: 15.93 ft at 8:15AM Mar 21, 2023Observed: 15.94 ft at 8:30AM Mar 21, 2023Observed: 15.95 ft at 8:45AM Mar 21, 2023Observed: 15.95 ft at 9:00AM Mar 21, 2023Observed: 15.94 ft at 9:15AM Mar 21, 2023Observed: 15.94 ft at 9:30AM Mar 21, 2023Highest Observation: 15.96 ft at 9:45AM Mar 21, 2023Observed: 15.94 ft at 10:00AM Mar 21, 2023Observed: 15.11 ft at 10:15AM Mar 21, 2023Observed: 14.36 ft at 10:30AM Mar 21, 2023Observed: 14.05 ft at 10:45AM Mar 21, 2023Observed: 13.97 ft at 11:00AM Mar 21, 2023Observed: 13.92 ft at 11:15AM Mar 21, 2023Observed: 13.93 ft at 11:30AM Mar 21, 2023Observed: 13.91 ft at 11:45AM Mar 21, 2023Observed: 13.94 ft at 12:00PM Mar 21, 2023Observed: 13.96 ft at 12:15PM Mar 21, 2023Observed: 13.96 ft at 12:16PM Mar 21, 2023Observed: 13.93 ft at 12:30PM Mar 21, 2023Observed: 13.91 ft at 12:45PM Mar 21, 2023Observed: 13.92 ft at 1:00PM Mar 21, 2023Observed: 13.9 ft at 1:15PM Mar 21, 2023Observed: 13.91 ft at 1:30PM Mar 21, 2023Observed: 13.93 ft at 1:45PM Mar 21, 2023Observed: 13.9 ft at 2:00PM Mar 21, 2023Observed: 13.93 ft at 2:15PM Mar 21, 2023Observed: 13.92 ft at 2:30PM Mar 21, 2023Observed: 13.89 ft at 2:45PM Mar 21, 2023Observed: 13.9 ft at 3:00PM Mar 21, 2023Observed: 13.93 ft at 3:15PM Mar 21, 2023Observed: 13.92 ft at 3:30PM Mar 21, 2023Observed: 13.92 ft at 3:45PM Mar 21, 2023Observed: 14.17 ft at 4:00PM Mar 21, 2023Observed: 15.17 ft at 4:15PM Mar 21, 2023Observed: 15.7 ft at 4:30PM Mar 21, 2023Observed: 15.85 ft at 4:45PM Mar 21, 2023Observed: 15.9 ft at 5:00PM Mar 21, 2023Observed: 15.94 ft at 5:15PM Mar 21, 2023Observed: 15.93 ft at 5:30PM Mar 21, 2023Observed: 15.94 ft at 5:45PM Mar 21, 2023Observed: 15.94 ft at 6:00PM Mar 21, 2023Observed: 15.93 ft at 6:15PM Mar 21, 2023Observed: 15.94 ft at 6:30PM Mar 21, 2023Observed: 15.94 ft at 6:45PM Mar 21, 2023Observed: 15.94 ft at 7:00PM Mar 21, 2023Observed: 15.94 ft at 7:15PM Mar 21, 2023Observed: 15.93 ft at 7:30PM Mar 21, 2023Observed: 15.94 ft at 7:45PM Mar 21, 2023Observed: 15.93 ft at 8:00PM Mar 21, 2023Observed: 15.93 ft at 8:15PM Mar 21, 2023Observed: 15.94 ft at 8:30PM Mar 21, 2023Observed: 15.93 ft at 8:45PM Mar 21, 2023Observed: 15.93 ft at 9:00PM Mar 21, 2023Observed: 15.94 ft at 9:15PM Mar 21, 2023Observed: 15.92 ft at 9:30PM Mar 21, 2023Observed: 15.92 ft at 9:45PM Mar 21, 2023Observed: 15.82 ft at 10:00PM Mar 21, 2023Observed: 14.77 ft at 10:15PM Mar 21, 2023Observed: 14.11 ft at 10:30PM Mar 21, 2023Observed: 13.87 ft at 10:45PM Mar 21, 2023Observed: 13.94 ft at 11:00PM Mar 21, 2023Observed: 13.6 ft at 11:15PM Mar 21, 2023Observed: 13.23 ft at 11:30PM Mar 21, 2023Observed: 13.1 ft at 11:45PM Mar 21, 2023Observed: 13.05 ft at 12:00AM Mar 22, 2023Observed: 13.04 ft at 12:15AM Mar 22, 2023Observed: 13.03 ft at 12:30AM Mar 22, 2023Observed: 13.03 ft at 12:45AM Mar 22, 2023Observed: 13.02 ft at 1:00AM Mar 22, 2023Observed: 13.03 ft at 1:15AM Mar 22, 2023Observed: 13.03 ft at 1:30AM Mar 22, 2023Observed: 13.02 ft at 1:45AM Mar 22, 2023Observed: 13.02 ft at 2:00AM Mar 22, 2023Observed: 13.03 ft at 2:15AM Mar 22, 2023Observed: 13.02 ft at 2:30AM Mar 22, 2023Observed: 13.02 ft at 2:45AM Mar 22, 2023Observed: 13.03 ft at 3:00AM Mar 22, 2023Observed: 13.03 ft at 3:15AM Mar 22, 2023Observed: 13.02 ft at 3:30AM Mar 22, 2023Observed: 13.03 ft at 3:45AM Mar 22, 2023Observed: 13.02 ft at 4:00AM Mar 22, 2023Observed: 13.02 ft at 4:15AM Mar 22, 2023Observed: 13.03 ft at 4:30AM Mar 22, 2023Observed: 13.03 ft at 4:31AM Mar 22, 2023Observed: 13.03 ft at 4:45AM Mar 22, 2023Observed: 13.15 ft at 5:00AM Mar 22, 2023Observed: 14.29 ft at 5:15AM Mar 22, 2023Observed: 15.11 ft at 5:30AM Mar 22, 2023Observed: 15.44 ft at 5:45AM Mar 22, 2023Observed: 15.51 ft at 6:00AM Mar 22, 2023Observed: 15.54 ft at 6:15AM Mar 22, 2023Observed: 15.54 ft at 6:30AM Mar 22, 2023Observed: 15.54 ft at 6:45AM Mar 22, 2023Observed: 15.55 ft at 7:00AM Mar 22, 2023Observed: 15.56 ft at 7:15AM Mar 22, 2023Observed: 15.54 ft at 7:30AM Mar 22, 2023Observed: 15.55 ft at 7:45AM Mar 22, 2023Observed: 15.54 ft at 8:00AM Mar 22, 2023Observed: 15.55 ft at 8:15AM Mar 22, 2023Observed: 15.54 ft at 8:30AM Mar 22, 2023Observed: 15.54 ft at 8:45AM Mar 22, 2023Observed: 15.56 ft at 9:00AM Mar 22, 2023Observed: 15.54 ft at 9:15AM Mar 22, 2023Observed: 15.55 ft at 9:30AM Mar 22, 2023Observed: 15.56 ft at 9:45AM Mar 22, 2023Observed: 15.59 ft at 10:00AM Mar 22, 2023Observed: 14.81 ft at 10:15AM Mar 22, 2023Observed: 14.18 ft at 10:30AM Mar 22, 2023Observed: 13.94 ft at 10:45AM Mar 22, 2023Observed: 13.9 ft at 11:00AM Mar 22, 2023Observed: 13.83 ft at 11:15AM Mar 22, 2023Observed: 13.85 ft at 11:30AM Mar 22, 2023Observed: 13.82 ft at 11:45AM Mar 22, 2023Observed: 13.82 ft at 12:00PM Mar 22, 2023Observed: 13.83 ft at 12:15PM Mar 22, 2023Observed: 13.82 ft at 12:30PM Mar 22, 2023Observed: 13.82 ft at 12:31PM Mar 22, 2023Observed: 13.85 ft at 12:45PM Mar 22, 2023Observed: 13.8 ft at 1:00PM Mar 22, 2023Observed: 13.83 ft at 1:15PM Mar 22, 2023Observed: 13.83 ft at 1:30PM Mar 22, 2023Observed: 13.8 ft at 1:45PM Mar 22, 2023Observed: 14.04 ft at 2:00PM Mar 22, 2023Observed: 14.93 ft at 2:15PM Mar 22, 2023Observed: 15.38 ft at 2:30PM Mar 22, 2023Observed: 15.46 ft at 2:45PM Mar 22, 2023Observed: 15.52 ft at 3:00PM Mar 22, 2023Observed: 15.53 ft at 3:15PM Mar 22, 2023Observed: 15.55 ft at 3:30PM Mar 22, 2023Observed: 15.53 ft at 3:45PM Mar 22, 2023Observed: 15.53 ft at 4:00PM Mar 22, 2023Observed: 15.54 ft at 4:15PM Mar 22, 2023Observed: 15.55 ft at 4:30PM Mar 22, 2023Observed: 15.55 ft at 4:45PM Mar 22, 2023Observed: 15.55 ft at 5:00PM Mar 22, 2023Observed: 15.56 ft at 5:15PM Mar 22, 2023Observed: 15.55 ft at 5:30PM Mar 22, 2023Observed: 15.57 ft at 5:45PM Mar 22, 2023Observed: 15.55 ft at 6:00PM Mar 22, 2023Observed: 15.55 ft at 6:15PM Mar 22, 2023Observed: 15.56 ft at 6:30PM Mar 22, 2023Observed: 15.55 ft at 6:45PM Mar 22, 2023Observed: 15.54 ft at 7:00PM Mar 22, 2023Observed: 15.53 ft at 7:15PM Mar 22, 2023Observed: 15.53 ft at 7:30PM Mar 22, 2023Observed: 15.54 ft at 7:45PM Mar 22, 2023Observed: 15.53 ft at 8:00PM Mar 22, 2023Observed: 15.54 ft at 8:15PM Mar 22, 2023Observed: 15.54 ft at 8:30PM Mar 22, 2023Observed: 15.54 ft at 8:31PM Mar 22, 2023Observed: 15.54 ft at 8:45PM Mar 22, 2023Observed: 15.54 ft at 9:00PM Mar 22, 2023Observed: 15.54 ft at 9:15PM Mar 22, 2023Observed: 15.54 ft at 9:30PM Mar 22, 2023Observed: 15.53 ft at 9:45PM Mar 22, 2023Observed: 15.54 ft at 10:00PM Mar 22, 2023Observed: 15.54 ft at 10:15PM Mar 22, 2023Observed: 15.54 ft at 10:30PM Mar 22, 2023Observed: 15.54 ft at 10:45PM Mar 22, 2023Observed: 15.59 ft at 11:00PM Mar 22, 2023Observed: 14.59 ft at 11:15PM Mar 22, 2023Observed: 13.55 ft at 11:30PM Mar 22, 2023Observed: 12.84 ft at 11:45PM Mar 22, 2023Observed: 12.52 ft at 12:00AM Mar 23, 2023Observed: 12.45 ft at 12:15AM Mar 23, 2023Observed: 12.42 ft at 12:30AM Mar 23, 2023Observed: 12.42 ft at 12:45AM Mar 23, 2023Observed: 12.42 ft at 1:00AM Mar 23, 2023Observed: 12.42 ft at 1:15AM Mar 23, 2023Observed: 12.42 ft at 1:30AM Mar 23, 2023Observed: 12.42 ft at 1:45AM Mar 23, 2023Observed: 12.42 ft at 2:00AM Mar 23, 2023Observed: 12.42 ft at 2:15AM Mar 23, 2023Observed: 12.42 ft at 2:30AM Mar 23, 2023Observed: 12.42 ft at 2:45AM Mar 23, 2023Observed: 12.44 ft at 3:00AM Mar 23, 2023Observed: 13.27 ft at 3:15AM Mar 23, 2023Observed: 13.69 ft at 3:30AM Mar 23, 2023Observed: 13.81 ft at 3:45AM Mar 23, 2023Observed: 13.9 ft at 4:00AM Mar 23, 2023Observed: 13.9 ft at 4:15AM Mar 23, 2023Observed: 13.87 ft at 4:30AM Mar 23, 2023Observed: 13.93 ft at 4:45AM Mar 23, 2023Observed: 13.94 ft at 5:00AM Mar 23, 2023Observed: 13.93 ft at 5:15AM Mar 23, 2023Observed: 13.91 ft at 5:30AM Mar 23, 2023Observed: 13.93 ft at 5:45AM Mar 23, 2023Observed: 13.9 ft at 6:00AM Mar 23, 2023Observed: 13.91 ft at 6:15AM Mar 23, 2023Observed: 13.87 ft at 6:30AM Mar 23, 2023Observed: 13.91 ft at 6:45AM Mar 23, 2023Observed: 13.93 ft at 7:00AM Mar 23, 2023Observed: 13.9 ft at 7:15AM Mar 23, 2023Observed: 13.91 ft at 7:30AM Mar 23, 2023Observed: 13.91 ft at 7:45AM Mar 23, 2023Observed: 13.9 ft at 8:00AM Mar 23, 2023Observed: 13.92 ft at 8:15AM Mar 23, 2023Observed: 13.94 ft at 8:30AM Mar 23, 2023Observed: 13.91 ft at 8:45AM Mar 23, 2023Observed: 13.92 ft at 9:00AM Mar 23, 2023Observed: 13.92 ft at 9:15AM Mar 23, 2023Observed: 13.94 ft at 9:30AM Mar 23, 2023Observed: 13.94 ft at 9:45AM Mar 23, 2023Observed: 13.93 ft at 10:00AM Mar 23, 2023Observed: 13.94 ft at 10:15AM Mar 23, 2023Observed: 13.94 ft at 10:30AM Mar 23, 2023Observed: 13.93 ft at 10:45AM Mar 23, 2023Observed: 13.94 ft at 11:00AM Mar 23, 2023Observed: 14.42 ft at 11:15AM Mar 23, 2023Observed: 14.66 ft at 11:30AM Mar 23, 2023Observed: 14.74 ft at 11:45AM Mar 23, 2023Observed: 14.76 ft at 12:00PM Mar 23, 2023Observed: 14.78 ft at 12:15PM Mar 23, 2023Observed: 14.78 ft at 12:30PM Mar 23, 2023Observed: 14.78 ft at 12:45PM Mar 23, 2023Observed: 14.78 ft at 1:00PM Mar 23, 2023Observed: 14.79 ft at 1:15PM Mar 23, 2023Observed: 14.78 ft at 1:30PM Mar 23, 2023USGS--Water Resources of the United StatesCNWM2(plotting HGIRG) Graph Created (2:27PM Mar 23, 2023)ObservedLatest observed value: 14.78 ft at 1:30 PM EDT 23-Mar-2023. Flood Stage is 23.5 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Gauge reading affected by power generation.

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

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Upstream Gauge - at Marietta Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 28.5
Moderate Flood Stage: 24.8
Flood Stage: 23.5
Action Stage: 21.5
Low Stage (in feet): 0

Historic Crests
(1) 36.83 ft on 06/24/1972
(2) 34.18 ft on 01/20/1996
(3) 32.41 ft on 09/09/2011
(4) 30.92 ft on 09/27/1975
(5) 30.07 ft on 09/19/2004
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 24.29 ft on 09/03/2021
(2) 22.32 ft on 05/02/2020
(3) 21.52 ft on 11/28/2018
(4) 26.08 ft on 07/26/2018
(5) 21.60 ft on 02/02/2013
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
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Gauge LocationGauge Map Marker
 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
31 Notification level 9 with 43 to 53 gates open at Conowingo dam.
29.4 Notification level 8 with 36 to 42 gates open at Conowingo Dam.
28.5 Notification level 7 with 33 to 35 gates open at Conowingo Dam.
26.3 Notification level 6 with 26 to 32 gates open at Conowingo Dam.
24.8 Backyards and basements on Main Street and Tome's Landing begin to flood.
23.7 Minor flooding begins in the town of Port Deposit, Maryland.
22.9 Maryland Route 222 north of Port Deposit is closed.
21.5 Notification level 2 with 12 to 15 gates open at Conowingo Dam.
20 Notification level 1 with 10 to 11 gates open at Conowingo Dam.
About This Location Collapse

Latitude: 39.657778° N, Longitude: 76.174444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 23.5 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 4.16 27.66 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
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

During winter months, cold and ice may result in inaccurate real-time stream stage and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(571) 888-3500
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