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Hydrograph River at a Glance Download
Susquehanna River at Conowingo Dam Stage (ft)Flow (kcfs)Observed: 13.77 ft at 4:45AM May 10, 2021Observed: 13.84 ft at 5:00AM May 10, 2021Observed: 13.87 ft at 5:15AM May 10, 2021Observed: 13.86 ft at 5:30AM May 10, 2021Observed: 13.88 ft at 5:45AM May 10, 2021Observed: 13.93 ft at 6:00AM May 10, 2021Observed: 15.04 ft at 6:15AM May 10, 2021Observed: 15.65 ft at 6:30AM May 10, 2021Observed: 15.85 ft at 6:45AM May 10, 2021Observed: 15.89 ft at 7:00AM May 10, 2021Observed: 15.92 ft at 7:15AM May 10, 2021Observed: 15.91 ft at 7:30AM May 10, 2021Observed: 15.92 ft at 7:45AM May 10, 2021Observed: 15.91 ft at 8:00AM May 10, 2021Observed: 15.93 ft at 8:15AM May 10, 2021Observed: 15.92 ft at 8:30AM May 10, 2021Observed: 15.93 ft at 8:45AM May 10, 2021Observed: 15.92 ft at 9:00AM May 10, 2021Observed: 15.93 ft at 9:15AM May 10, 2021Observed: 15.92 ft at 9:30AM May 10, 2021Observed: 15.93 ft at 9:45AM May 10, 2021Observed: 15.93 ft at 10:00AM May 10, 2021Observed: 15.93 ft at 10:15AM May 10, 2021Observed: 15.94 ft at 10:30AM May 10, 2021Observed: 15.94 ft at 10:45AM May 10, 2021Observed: 15.92 ft at 11:00AM May 10, 2021Observed: 15.92 ft at 11:15AM May 10, 2021Observed: 15.93 ft at 11:30AM May 10, 2021Observed: 15.93 ft at 11:45AM May 10, 2021Observed: 15.94 ft at 12:00PM May 10, 2021Observed: 15.93 ft at 12:15PM May 10, 2021Observed: 15.92 ft at 12:30PM May 10, 2021Observed: 15.93 ft at 12:45PM May 10, 2021Observed: 15.93 ft at 1:00PM May 10, 2021Observed: 15.93 ft at 1:15PM May 10, 2021Observed: 15.94 ft at 1:30PM May 10, 2021Observed: 15.93 ft at 1:45PM May 10, 2021Observed: 15.92 ft at 2:00PM May 10, 2021Observed: 15.74 ft at 2:15PM May 10, 2021Observed: 15.4 ft at 2:30PM May 10, 2021Observed: 15.32 ft at 2:45PM May 10, 2021Observed: 15.29 ft at 3:00PM May 10, 2021Observed: 15.01 ft at 3:15PM May 10, 2021Observed: 14.29 ft at 3:30PM May 10, 2021Observed: 14.02 ft at 3:45PM May 10, 2021Observed: 13.94 ft at 4:00PM May 10, 2021Observed: 13.93 ft at 4:15PM May 10, 2021Observed: 13.92 ft at 4:30PM May 10, 2021Observed: 13.91 ft at 4:45PM May 10, 2021Observed: 13.92 ft at 5:00PM May 10, 2021Observed: 13.92 ft at 5:15PM May 10, 2021Observed: 13.91 ft at 5:30PM May 10, 2021Observed: 13.91 ft at 5:45PM May 10, 2021Observed: 13.97 ft at 6:00PM May 10, 2021Observed: 14.93 ft at 6:15PM May 10, 2021Observed: 15.4 ft at 6:30PM May 10, 2021Observed: 15.51 ft at 6:45PM May 10, 2021Observed: 15.54 ft at 7:00PM May 10, 2021Observed: 15.56 ft at 7:15PM May 10, 2021Observed: 15.58 ft at 7:30PM May 10, 2021Observed: 15.58 ft at 7:45PM May 10, 2021Observed: 15.57 ft at 8:00PM May 10, 2021Observed: 15.59 ft at 8:15PM May 10, 2021Observed: 15.57 ft at 8:30PM May 10, 2021Observed: 15.57 ft at 8:45PM May 10, 2021Observed: 15.59 ft at 9:00PM May 10, 2021Observed: 15.6 ft at 9:15PM May 10, 2021Observed: 15.58 ft at 9:30PM May 10, 2021Observed: 15.57 ft at 9:45PM May 10, 2021Observed: 15.57 ft at 10:00PM May 10, 2021Observed: 15.58 ft at 10:15PM May 10, 2021Observed: 15.59 ft at 10:30PM May 10, 2021Observed: 15.4 ft at 10:45PM May 10, 2021Observed: 14.52 ft at 11:00PM May 10, 2021Observed: 14.1 ft at 11:15PM May 10, 2021Observed: 13.97 ft at 11:30PM May 10, 2021Observed: 13.93 ft at 11:45PM May 10, 2021Observed: 13.92 ft at 12:00AM May 11, 2021Observed: 14.09 ft at 12:15AM May 11, 2021Observed: 13.35 ft at 12:30AM May 11, 2021Observed: 12.74 ft at 12:45AM May 11, 2021Observed: 12.43 ft at 1:00AM May 11, 2021Observed: 12.34 ft at 1:15AM May 11, 2021Observed: 12.3 ft at 1:30AM May 11, 2021Observed: 12.29 ft at 1:45AM May 11, 2021Observed: 12.29 ft at 2:00AM May 11, 2021Observed: 12.29 ft at 2:15AM May 11, 2021Observed: 12.29 ft at 2:30AM May 11, 2021Observed: 12.29 ft at 2:45AM May 11, 2021Observed: 12.29 ft at 3:00AM May 11, 2021Observed: 12.29 ft at 3:15AM May 11, 2021Observed: 12.29 ft at 3:30AM May 11, 2021Observed: 12.29 ft at 3:45AM May 11, 2021Observed: 12.29 ft at 4:00AM May 11, 2021Observed: 12.29 ft at 4:15AM May 11, 2021Observed: 12.29 ft at 4:30AM May 11, 2021Observed: 12.29 ft at 4:45AM May 11, 2021Observed: 12.29 ft at 5:00AM May 11, 2021Observed: 12.3 ft at 5:15AM May 11, 2021Observed: 12.3 ft at 5:30AM May 11, 2021Observed: 12.3 ft at 5:45AM May 11, 2021Observed: 12.34 ft at 6:00AM May 11, 2021Observed: 13.69 ft at 6:15AM May 11, 2021Observed: 14.92 ft at 6:30AM May 11, 2021Observed: 15.62 ft at 6:45AM May 11, 2021Observed: 15.85 ft at 7:00AM May 11, 2021Observed: 15.92 ft at 7:15AM May 11, 2021Observed: 15.93 ft at 7:30AM May 11, 2021Observed: 15.93 ft at 7:45AM May 11, 2021Observed: 15.93 ft at 8:00AM May 11, 2021Observed: 15.93 ft at 8:15AM May 11, 2021Observed: 15.94 ft at 8:30AM May 11, 2021Observed: 15.94 ft at 8:45AM May 11, 2021Observed: 15.95 ft at 9:00AM May 11, 2021Observed: 15.94 ft at 9:15AM May 11, 2021Observed: 15.92 ft at 9:30AM May 11, 2021Observed: 15.93 ft at 9:45AM May 11, 2021Observed: 15.92 ft at 10:00AM May 11, 2021Observed: 15.93 ft at 10:15AM May 11, 2021Observed: 15.94 ft at 10:30AM May 11, 2021Observed: 15.93 ft at 10:45AM May 11, 2021Observed: 15.95 ft at 11:00AM May 11, 2021Observed: 15.95 ft at 11:15AM May 11, 2021Observed: 15.95 ft at 11:30AM May 11, 2021Observed: 15.93 ft at 11:45AM May 11, 2021Observed: 15.93 ft at 12:00PM May 11, 2021Observed: 15.94 ft at 12:15PM May 11, 2021Observed: 15.95 ft at 12:30PM May 11, 2021Observed: 15.93 ft at 12:45PM May 11, 2021Observed: 15.93 ft at 1:00PM May 11, 2021Observed: 15.94 ft at 1:15PM May 11, 2021Observed: 15.93 ft at 1:30PM May 11, 2021Observed: 15.93 ft at 1:45PM May 11, 2021Observed: 15.95 ft at 2:00PM May 11, 2021Observed: 15.93 ft at 2:15PM May 11, 2021Observed: 15.93 ft at 2:30PM May 11, 2021Observed: 15.94 ft at 2:45PM May 11, 2021Observed: 15.94 ft at 3:00PM May 11, 2021Observed: 15.94 ft at 3:15PM May 11, 2021Observed: 15.93 ft at 3:30PM May 11, 2021Observed: 15.94 ft at 3:45PM May 11, 2021Observed: 15.93 ft at 4:00PM May 11, 2021Observed: 15.93 ft at 4:15PM May 11, 2021Observed: 15.93 ft at 4:30PM May 11, 2021Observed: 15.94 ft at 4:45PM May 11, 2021Observed: 15.93 ft at 5:00PM May 11, 2021Observed: 15.95 ft at 5:15PM May 11, 2021Observed: 15.93 ft at 5:30PM May 11, 2021Observed: 15.94 ft at 5:45PM May 11, 2021Observed: 15.94 ft at 6:00PM May 11, 2021Observed: 15.93 ft at 6:15PM May 11, 2021Observed: 15.93 ft at 6:30PM May 11, 2021Observed: 15.93 ft at 6:45PM May 11, 2021Observed: 15.93 ft at 7:00PM May 11, 2021Observed: 15.93 ft at 7:15PM May 11, 2021Observed: 15.93 ft at 7:30PM May 11, 2021Observed: 15.94 ft at 7:45PM May 11, 2021Observed: 15.93 ft at 8:00PM May 11, 2021Observed: 15.94 ft at 8:15PM May 11, 2021Observed: 15.93 ft at 8:30PM May 11, 2021Observed: 15.94 ft at 8:45PM May 11, 2021Observed: 15.93 ft at 9:00PM May 11, 2021Observed: 15.93 ft at 9:15PM May 11, 2021Observed: 15.92 ft at 9:30PM May 11, 2021Observed: 15.93 ft at 9:45PM May 11, 2021Observed: 15.93 ft at 10:00PM May 11, 2021Observed: 15.93 ft at 10:15PM May 11, 2021Observed: 15.93 ft at 10:30PM May 11, 2021Observed: 15.93 ft at 10:45PM May 11, 2021Observed: 15.93 ft at 11:00PM May 11, 2021Observed: 15.93 ft at 11:15PM May 11, 2021Observed: 15.94 ft at 11:30PM May 11, 2021Observed: 15.92 ft at 11:45PM May 11, 2021Observed: 15.93 ft at 12:00AM May 12, 2021Observed: 15.93 ft at 12:15AM May 12, 2021Observed: 15.93 ft at 12:30AM May 12, 2021Observed: 15.93 ft at 12:45AM May 12, 2021Observed: 15.93 ft at 1:00AM May 12, 2021Observed: 15.92 ft at 1:15AM May 12, 2021Observed: 15.93 ft at 1:30AM May 12, 2021Observed: 15.93 ft at 1:45AM May 12, 2021Observed: 15.96 ft at 2:00AM May 12, 2021Observed: 15.93 ft at 2:15AM May 12, 2021Observed: 15.93 ft at 2:30AM May 12, 2021Observed: 15.94 ft at 2:45AM May 12, 2021Observed: 15.93 ft at 3:00AM May 12, 2021Observed: 15.93 ft at 3:15AM May 12, 2021Observed: 15.93 ft at 3:30AM May 12, 2021Observed: 15.94 ft at 3:45AM May 12, 2021Observed: 15.93 ft at 4:00AM May 12, 2021Observed: 15.95 ft at 4:15AM May 12, 2021Observed: 15.93 ft at 4:30AM May 12, 2021Observed: 15.94 ft at 4:45AM May 12, 2021Observed: 15.94 ft at 5:00AM May 12, 2021Observed: 15.95 ft at 5:15AM May 12, 2021Observed: 15.93 ft at 5:30AM May 12, 2021Observed: 15.95 ft at 5:45AM May 12, 2021Observed: 15.93 ft at 6:00AM May 12, 2021Observed: 15.91 ft at 6:15AM May 12, 2021Observed: 15.87 ft at 6:30AM May 12, 2021Observed: 16.16 ft at 6:45AM May 12, 2021Observed: 16.57 ft at 7:00AM May 12, 2021Observed: 17.15 ft at 7:15AM May 12, 2021Observed: 17.77 ft at 7:30AM May 12, 2021Observed: 18.26 ft at 7:45AM May 12, 2021Observed: 18.43 ft at 8:00AM May 12, 2021Highest Observation: 18.49 ft at 8:15AM May 12, 2021Highest Observation: 18.49 ft at 8:30AM May 12, 2021Highest Observation: 18.49 ft at 8:45AM May 12, 2021Observed: 18.48 ft at 9:00AM May 12, 2021Observed: 18.47 ft at 9:15AM May 12, 2021Observed: 18.46 ft at 9:30AM May 12, 2021Observed: 18.46 ft at 9:45AM May 12, 2021Observed: 18.45 ft at 10:00AM May 12, 2021Observed: 18.44 ft at 10:15AM May 12, 2021Observed: 18.45 ft at 10:30AM May 12, 2021Observed: 18.44 ft at 10:45AM May 12, 2021Observed: 18.43 ft at 11:00AM May 12, 2021Observed: 18.42 ft at 11:15AM May 12, 2021Observed: 18.42 ft at 11:30AM May 12, 2021Observed: 18.41 ft at 11:45AM May 12, 2021Observed: 18.4 ft at 12:00PM May 12, 2021Observed: 18.38 ft at 12:15PM May 12, 2021Observed: 18.16 ft at 12:30PM May 12, 2021Observed: 17.9 ft at 12:45PM May 12, 2021Observed: 17.85 ft at 1:00PM May 12, 2021Observed: 17.82 ft at 1:15PM May 12, 2021Observed: 17.79 ft at 1:30PM May 12, 2021Observed: 17.77 ft at 1:45PM May 12, 2021Observed: 17.77 ft at 2:00PM May 12, 2021Observed: 17.77 ft at 2:15PM May 12, 2021Observed: 17.78 ft at 2:30PM May 12, 2021Observed: 17.77 ft at 2:45PM May 12, 2021Observed: 17.76 ft at 3:00PM May 12, 2021Observed: 17.76 ft at 3:15PM May 12, 2021Observed: 17.75 ft at 3:30PM May 12, 2021Observed: 17.77 ft at 3:45PM May 12, 2021Observed: 17.77 ft at 4:00PM May 12, 2021Observed: 17.76 ft at 4:15PM May 12, 2021Observed: 17.77 ft at 4:30PM May 12, 2021Observed: 17.77 ft at 4:45PM May 12, 2021Observed: 17.76 ft at 5:00PM May 12, 2021Observed: 17.76 ft at 5:15PM May 12, 2021Observed: 17.78 ft at 5:30PM May 12, 2021Observed: 17.79 ft at 5:45PM May 12, 2021Observed: 17.79 ft at 6:00PM May 12, 2021Observed: 17.59 ft at 6:15PM May 12, 2021Observed: 17.33 ft at 6:30PM May 12, 2021Observed: 17.23 ft at 6:45PM May 12, 2021Observed: 17.21 ft at 7:00PM May 12, 2021Observed: 17.19 ft at 7:15PM May 12, 2021Observed: 17.22 ft at 7:30PM May 12, 2021Observed: 17.22 ft at 7:45PM May 12, 2021Observed: 17.22 ft at 8:00PM May 12, 2021Observed: 17.24 ft at 8:15PM May 12, 2021Observed: 17.23 ft at 8:30PM May 12, 2021Observed: 17.22 ft at 8:45PM May 12, 2021Observed: 17.24 ft at 9:00PM May 12, 2021Observed: 17.23 ft at 9:15PM May 12, 2021Observed: 17.23 ft at 9:30PM May 12, 2021Observed: 17.23 ft at 9:45PM May 12, 2021Observed: 17.24 ft at 10:00PM May 12, 2021Observed: 17.27 ft at 10:15PM May 12, 2021Observed: 17.26 ft at 10:30PM May 12, 2021Observed: 17.27 ft at 10:45PM May 12, 2021Observed: 17.27 ft at 11:00PM May 12, 2021Observed: 17.27 ft at 11:15PM May 12, 2021Observed: 17.28 ft at 11:30PM May 12, 2021Observed: 17.29 ft at 11:45PM May 12, 2021Observed: 16.95 ft at 12:00AM May 13, 2021Observed: 16.74 ft at 12:15AM May 13, 2021Observed: 16.66 ft at 12:30AM May 13, 2021Observed: 16.65 ft at 12:45AM May 13, 2021Observed: 16.61 ft at 1:00AM May 13, 2021Observed: 16.62 ft at 1:15AM May 13, 2021Observed: 16.63 ft at 1:30AM May 13, 2021Observed: 16.63 ft at 1:45AM May 13, 2021Observed: 16.64 ft at 2:00AM May 13, 2021Observed: 16.63 ft at 2:15AM May 13, 2021Observed: 16.63 ft at 2:30AM May 13, 2021Observed: 16.62 ft at 2:45AM May 13, 2021Observed: 16.63 ft at 3:00AM May 13, 2021Observed: 16.62 ft at 3:15AM May 13, 2021Observed: 16.62 ft at 3:30AM May 13, 2021Observed: 16.63 ft at 3:45AM May 13, 2021Observed: 16.63 ft at 4:00AM May 13, 2021Observed: 16.61 ft at 4:15AM May 13, 2021Observed: 16.63 ft at 4:30AM May 13, 2021Observed: 16.65 ft at 4:45AM May 13, 2021Observed: 16.63 ft at 5:00AM May 13, 2021Observed: 16.62 ft at 5:15AM May 13, 2021Observed: 16.63 ft at 5:30AM May 13, 2021Observed: 16.65 ft at 5:45AM May 13, 2021Observed: 16.62 ft at 6:00AM May 13, 2021Observed: 16.98 ft at 6:15AM May 13, 2021Observed: 17.66 ft at 6:30AM May 13, 2021Observed: 18.05 ft at 6:45AM May 13, 2021Observed: 18.19 ft at 7:00AM May 13, 2021Observed: 18.23 ft at 7:15AM May 13, 2021Observed: 18.23 ft at 7:30AM May 13, 2021Observed: 18.23 ft at 7:45AM May 13, 2021Observed: 18.24 ft at 8:00AM May 13, 2021Observed: 18.23 ft at 8:15AM May 13, 2021Observed: 18.22 ft at 8:30AM May 13, 2021Observed: 18.23 ft at 8:45AM May 13, 2021Observed: 18.23 ft at 9:00AM May 13, 2021Observed: 18.2 ft at 9:15AM May 13, 2021Observed: 18.22 ft at 9:30AM May 13, 2021Observed: 18.22 ft at 9:45AM May 13, 2021Observed: 18.2 ft at 10:00AM May 13, 2021Observed: 18.2 ft at 10:15AM May 13, 2021Observed: 18.19 ft at 10:30AM May 13, 2021Observed: 17.97 ft at 10:45AM May 13, 2021Observed: 17.67 ft at 11:00AM May 13, 2021Observed: 17.59 ft at 11:15AM May 13, 2021Observed: 17.55 ft at 11:30AM May 13, 2021Observed: 17.49 ft at 11:45AM May 13, 2021Observed: 17.51 ft at 12:00PM May 13, 2021Observed: 17.51 ft at 12:15PM May 13, 2021Observed: 17.51 ft at 12:30PM May 13, 2021Observed: 17.51 ft at 12:45PM May 13, 2021Observed: 17.52 ft at 1:00PM May 13, 2021Observed: 17.51 ft at 1:15PM May 13, 2021Observed: 17.5 ft at 1:30PM May 13, 2021Observed: 17.5 ft at 1:45PM May 13, 2021Observed: 17.5 ft at 2:00PM May 13, 2021Observed: 17.49 ft at 2:15PM May 13, 2021Observed: 17.48 ft at 2:30PM May 13, 2021Observed: 17.48 ft at 2:45PM May 13, 2021Observed: 17.47 ft at 3:00PM May 13, 2021Observed: 17.47 ft at 3:15PM May 13, 2021Observed: 17.47 ft at 3:30PM May 13, 2021Observed: 17.47 ft at 3:45PM May 13, 2021Observed: 17.47 ft at 4:00PM May 13, 2021Observed: 17.48 ft at 4:15PM May 13, 2021Observed: 17.47 ft at 4:30PM May 13, 2021Observed: 17.47 ft at 4:45PM May 13, 2021Observed: 17.46 ft at 5:00PM May 13, 2021Observed: 17.45 ft at 5:15PM May 13, 2021Observed: 17.46 ft at 5:30PM May 13, 2021Observed: 17.45 ft at 5:45PM May 13, 2021Observed: 17.07 ft at 6:00PM May 13, 2021Observed: 16.91 ft at 6:15PM May 13, 2021Observed: 16.85 ft at 6:30PM May 13, 2021Observed: 16.83 ft at 6:45PM May 13, 2021Observed: 16.83 ft at 7:00PM May 13, 2021Observed: 16.82 ft at 7:15PM May 13, 2021Observed: 16.83 ft at 7:30PM May 13, 2021Observed: 16.83 ft at 7:45PM May 13, 2021Observed: 16.84 ft at 8:00PM May 13, 2021Observed: 16.84 ft at 8:15PM May 13, 2021Observed: 16.86 ft at 8:30PM May 13, 2021Observed: 16.85 ft at 8:45PM May 13, 2021Observed: 16.87 ft at 9:00PM May 13, 2021Observed: 16.87 ft at 9:15PM May 13, 2021Observed: 16.87 ft at 9:30PM May 13, 2021Observed: 16.87 ft at 9:45PM May 13, 2021Observed: 16.87 ft at 10:00PM May 13, 2021Observed: 16.87 ft at 10:15PM May 13, 2021Observed: 16.87 ft at 10:30PM May 13, 2021Observed: 16.87 ft at 10:45PM May 13, 2021Observed: 16.89 ft at 11:00PM May 13, 2021Observed: 16.89 ft at 11:15PM May 13, 2021Observed: 16.86 ft at 11:30PM May 13, 2021Observed: 16.88 ft at 11:45PM May 13, 2021Observed: 16.71 ft at 12:00AM May 14, 2021Observed: 16.15 ft at 12:15AM May 14, 2021Observed: 15.98 ft at 12:30AM May 14, 2021Observed: 15.92 ft at 12:45AM May 14, 2021Observed: 15.91 ft at 1:00AM May 14, 2021Observed: 15.89 ft at 1:15AM May 14, 2021Observed: 15.91 ft at 1:30AM May 14, 2021Observed: 15.88 ft at 1:45AM May 14, 2021Observed: 15.89 ft at 2:00AM May 14, 2021Observed: 15.89 ft at 2:15AM May 14, 2021Observed: 15.91 ft at 2:30AM May 14, 2021Observed: 15.87 ft at 2:45AM May 14, 2021Observed: 15.9 ft at 3:00AM May 14, 2021Observed: 15.89 ft at 3:15AM May 14, 2021Observed: 15.9 ft at 3:30AM May 14, 2021Observed: 15.91 ft at 3:45AM May 14, 2021Observed: 15.91 ft at 4:00AM May 14, 2021Observed: 15.89 ft at 4:15AM May 14, 2021Observed: 15.91 ft at 4:30AM May 14, 2021Observed: 15.9 ft at 4:45AM May 14, 2021Observed: 15.91 ft at 5:00AM May 14, 2021Observed: 15.91 ft at 5:15AM May 14, 2021Observed: 15.91 ft at 5:30AM May 14, 2021Observed: 15.9 ft at 5:45AM May 14, 2021Observed: 15.9 ft at 6:00AM May 14, 2021Observed: 15.9 ft at 6:15AM May 14, 2021Observed: 15.91 ft at 6:30AM May 14, 2021Observed: 15.91 ft at 6:45AM May 14, 2021Observed: 15.9 ft at 7:00AM May 14, 2021Observed: 15.89 ft at 7:15AM May 14, 2021Observed: 15.89 ft at 7:30AM May 14, 2021Observed: 15.9 ft at 7:45AM May 14, 2021Observed: 15.9 ft at 8:00AM May 14, 2021Observed: 15.89 ft at 8:15AM May 14, 2021Observed: 15.89 ft at 8:30AM May 14, 2021Observed: 15.88 ft at 8:45AM May 14, 2021Observed: 15.89 ft at 9:00AM May 14, 2021Observed: 15.89 ft at 9:15AM May 14, 2021Observed: 15.91 ft at 9:30AM May 14, 2021Observed: 15.9 ft at 9:45AM May 14, 2021Observed: 15.9 ft at 10:00AM May 14, 2021Observed: 15.88 ft at 10:15AM May 14, 2021Observed: 15.91 ft at 10:30AM May 14, 2021Observed: 15.91 ft at 10:45AM May 14, 2021Observed: 15.9 ft at 11:00AM May 14, 2021Observed: 15.9 ft at 11:15AM May 14, 2021Observed: 15.89 ft at 11:30AM May 14, 2021Observed: 15.88 ft at 11:45AM May 14, 2021Observed: 15.9 ft at 12:00PM May 14, 2021Observed: 15.91 ft at 12:15PM May 14, 2021Observed: 15.9 ft at 12:30PM May 14, 2021Observed: 15.88 ft at 12:45PM May 14, 2021Observed: 15.88 ft at 1:00PM May 14, 2021Observed: 15.9 ft at 1:15PM May 14, 2021Observed: 15.89 ft at 1:30PM May 14, 2021Observed: 15.9 ft at 1:45PM May 14, 2021Observed: 15.91 ft at 2:00PM May 14, 2021Observed: 15.87 ft at 2:15PM May 14, 2021Observed: 15.9 ft at 2:30PM May 14, 2021Observed: 15.9 ft at 2:45PM May 14, 2021Observed: 15.9 ft at 3:00PM May 14, 2021Observed: 15.9 ft at 3:15PM May 14, 2021Observed: 15.9 ft at 3:30PM May 14, 2021Observed: 15.89 ft at 3:45PM May 14, 2021Observed: 15.91 ft at 4:00PM May 14, 2021Observed: 15.9 ft at 4:15PM May 14, 2021Observed: 15.9 ft at 4:30PM May 14, 2021Observed: 15.91 ft at 4:45PM May 14, 2021Observed: 15.91 ft at 5:00PM May 14, 2021Observed: 15.9 ft at 5:15PM May 14, 2021Observed: 15.9 ft at 5:30PM May 14, 2021Observed: 15.9 ft at 5:45PM May 14, 2021Observed: 15.92 ft at 6:00PM May 14, 2021Observed: 15.91 ft at 6:15PM May 14, 2021Observed: 15.89 ft at 6:30PM May 14, 2021Observed: 15.9 ft at 6:45PM May 14, 2021Observed: 15.91 ft at 7:00PM May 14, 2021Observed: 15.91 ft at 7:15PM May 14, 2021Observed: 15.91 ft at 7:30PM May 14, 2021Observed: 15.88 ft at 7:45PM May 14, 2021Observed: 15.91 ft at 8:00PM May 14, 2021Observed: 15.91 ft at 8:15PM May 14, 2021Observed: 15.9 ft at 8:30PM May 14, 2021Observed: 15.89 ft at 8:45PM May 14, 2021Observed: 15.9 ft at 9:00PM May 14, 2021Observed: 15.89 ft at 9:15PM May 14, 2021Observed: 15.89 ft at 9:30PM May 14, 2021Observed: 15.9 ft at 9:45PM May 14, 2021Observed: 15.9 ft at 10:00PM May 14, 2021Observed: 15.91 ft at 10:15PM May 14, 2021Observed: 15.91 ft at 10:30PM May 14, 2021Observed: 15.91 ft at 10:45PM May 14, 2021Observed: 15.91 ft at 11:00PM May 14, 2021Observed: 15.91 ft at 11:15PM May 14, 2021Observed: 15.88 ft at 11:30PM May 14, 2021Observed: 15.9 ft at 11:45PM May 14, 2021Observed: 15.91 ft at 12:00AM May 15, 2021Observed: 15.91 ft at 12:15AM May 15, 2021Observed: 15.91 ft at 12:30AM May 15, 2021Observed: 15.89 ft at 12:45AM May 15, 2021Observed: 15.96 ft at 1:00AM May 15, 2021Observed: 15.97 ft at 1:15AM May 15, 2021Observed: 15.95 ft at 1:30AM May 15, 2021Observed: 15.93 ft at 1:45AM May 15, 2021Observed: 15.93 ft at 2:00AM May 15, 2021Observed: 15.93 ft at 2:15AM May 15, 2021Observed: 15.93 ft at 2:30AM May 15, 2021Observed: 15.93 ft at 2:45AM May 15, 2021Observed: 15.92 ft at 3:00AM May 15, 2021Observed: 15.93 ft at 3:15AM May 15, 2021Observed: 15.92 ft at 3:30AM May 15, 2021USGS--Water Resources of the United StatesCNWM2(plotting HGIRG) Graph Created (4:40AM May 15, 2021)ObservedLatest observed value: 15.92 ft at 3:30 AM EDT 15-May-2021. Flood Stage is 23.5 ft
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About this graph
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.

Return to Area Map
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) 22.32 ft on 05/02/2020
(2) 21.52 ft on 11/28/2018
(3) 26.08 ft on 07/26/2018
(4) 21.60 ft on 02/02/2013
(5) 32.41 ft on 09/09/2011
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(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.

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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
(703) 996-2200
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Page last modified: 2-Nov-2020 7:30 PM
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