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Hydrograph River at a Glance Download
Potomac River at Edwards Ferry Stage (ft)Observed: 5.2 ft at 2:00PM Apr 15, 2018Observed: 5.2 ft at 2:15PM Apr 15, 2018Observed: 5.21 ft at 2:30PM Apr 15, 2018Observed: 5.2 ft at 2:45PM Apr 15, 2018Observed: 5.2 ft at 3:00PM Apr 15, 2018Observed: 5.19 ft at 3:15PM Apr 15, 2018Observed: 5.19 ft at 3:30PM Apr 15, 2018Observed: 5.18 ft at 3:45PM Apr 15, 2018Observed: 5.18 ft at 4:00PM Apr 15, 2018Observed: 5.18 ft at 4:15PM Apr 15, 2018Observed: 5.18 ft at 4:30PM Apr 15, 2018Observed: 5.18 ft at 4:45PM Apr 15, 2018Observed: 5.17 ft at 5:00PM Apr 15, 2018Observed: 5.17 ft at 5:15PM Apr 15, 2018Observed: 5.17 ft at 5:30PM Apr 15, 2018Observed: 5.17 ft at 5:45PM Apr 15, 2018Observed: 5.15 ft at 6:00PM Apr 15, 2018Observed: 5.17 ft at 6:15PM Apr 15, 2018Observed: 5.16 ft at 6:30PM Apr 15, 2018Observed: 5.16 ft at 6:45PM Apr 15, 2018Observed: 5.16 ft at 7:00PM Apr 15, 2018Observed: 5.16 ft at 7:15PM Apr 15, 2018Observed: 5.16 ft at 7:30PM Apr 15, 2018Observed: 5.15 ft at 7:45PM Apr 15, 2018Observed: 5.15 ft at 8:00PM Apr 15, 2018Observed: 5.15 ft at 8:15PM Apr 15, 2018Observed: 5.13 ft at 8:30PM Apr 15, 2018Observed: 5.14 ft at 8:45PM Apr 15, 2018Observed: 5.14 ft at 9:00PM Apr 15, 2018Observed: 5.14 ft at 9:15PM Apr 15, 2018Observed: 5.13 ft at 9:30PM Apr 15, 2018Observed: 5.13 ft at 9:45PM Apr 15, 2018Observed: 5.13 ft at 10:00PM Apr 15, 2018Observed: 5.12 ft at 10:15PM Apr 15, 2018Observed: 5.13 ft at 10:30PM Apr 15, 2018Observed: 5.13 ft at 10:45PM Apr 15, 2018Observed: 5.12 ft at 11:00PM Apr 15, 2018Observed: 5.13 ft at 11:15PM Apr 15, 2018Observed: 5.13 ft at 11:30PM Apr 15, 2018Observed: 5.13 ft at 11:45PM Apr 15, 2018Observed: 5.13 ft at 12:00AM Apr 16, 2018Observed: 5.13 ft at 12:15AM Apr 16, 2018Observed: 5.13 ft at 12:30AM Apr 16, 2018Observed: 5.13 ft at 12:45AM Apr 16, 2018Observed: 5.15 ft at 1:00AM Apr 16, 2018Observed: 5.15 ft at 1:15AM Apr 16, 2018Observed: 5.16 ft at 1:30AM Apr 16, 2018Observed: 5.17 ft at 1:45AM Apr 16, 2018Observed: 5.18 ft at 2:00AM Apr 16, 2018Observed: 5.19 ft at 2:15AM Apr 16, 2018Observed: 5.21 ft at 2:30AM Apr 16, 2018Observed: 5.24 ft at 2:45AM Apr 16, 2018Observed: 5.27 ft at 3:00AM Apr 16, 2018Observed: 5.29 ft at 3:15AM Apr 16, 2018Observed: 5.32 ft at 3:30AM Apr 16, 2018Observed: 5.34 ft at 3:45AM Apr 16, 2018Observed: 5.37 ft at 4:00AM Apr 16, 2018Observed: 5.4 ft at 4:15AM Apr 16, 2018Observed: 5.43 ft at 4:30AM Apr 16, 2018Observed: 5.47 ft at 4:45AM Apr 16, 2018Observed: 5.5 ft at 5:00AM Apr 16, 2018Observed: 5.55 ft at 5:15AM Apr 16, 2018Observed: 5.59 ft at 5:30AM Apr 16, 2018Observed: 5.64 ft at 5:45AM Apr 16, 2018Observed: 5.69 ft at 6:00AM Apr 16, 2018Observed: 5.75 ft at 6:15AM Apr 16, 2018Observed: 5.8 ft at 6:30AM Apr 16, 2018Observed: 5.86 ft at 6:45AM Apr 16, 2018Observed: 5.91 ft at 7:00AM Apr 16, 2018Observed: 5.97 ft at 7:15AM Apr 16, 2018Observed: 6.02 ft at 7:30AM Apr 16, 2018Observed: 6.07 ft at 7:45AM Apr 16, 2018Observed: 6.13 ft at 8:00AM Apr 16, 2018Observed: 6.18 ft at 8:15AM Apr 16, 2018Observed: 6.23 ft at 8:30AM Apr 16, 2018Observed: 6.28 ft at 8:45AM Apr 16, 2018Observed: 6.34 ft at 9:00AM Apr 16, 2018Observed: 6.4 ft at 9:15AM Apr 16, 2018Observed: 6.46 ft at 9:30AM Apr 16, 2018Observed: 6.52 ft at 9:45AM Apr 16, 2018Observed: 6.58 ft at 10:00AM Apr 16, 2018Observed: 6.64 ft at 10:15AM Apr 16, 2018Observed: 6.7 ft at 10:30AM Apr 16, 2018Observed: 6.76 ft at 10:45AM Apr 16, 2018Observed: 6.84 ft at 11:00AM Apr 16, 2018Observed: 6.89 ft at 11:15AM Apr 16, 2018Observed: 6.97 ft at 11:30AM Apr 16, 2018Observed: 7.04 ft at 11:45AM Apr 16, 2018Observed: 7.1 ft at 12:00PM Apr 16, 2018Observed: 7.17 ft at 12:15PM Apr 16, 2018Observed: 7.24 ft at 12:30PM Apr 16, 2018Observed: 7.31 ft at 12:45PM Apr 16, 2018Observed: 7.39 ft at 1:00PM Apr 16, 2018Observed: 7.44 ft at 1:15PM Apr 16, 2018Observed: 7.5 ft at 1:30PM Apr 16, 2018Observed: 7.54 ft at 1:45PM Apr 16, 2018Observed: 7.62 ft at 2:00PM Apr 16, 2018Observed: 7.66 ft at 2:15PM Apr 16, 2018Observed: 7.73 ft at 2:30PM Apr 16, 2018Observed: 7.76 ft at 2:45PM Apr 16, 2018Observed: 7.8 ft at 3:00PM Apr 16, 2018Observed: 7.84 ft at 3:15PM Apr 16, 2018Observed: 7.89 ft at 3:30PM Apr 16, 2018Observed: 7.93 ft at 3:45PM Apr 16, 2018Observed: 7.97 ft at 4:00PM Apr 16, 2018Observed: 8.01 ft at 4:15PM Apr 16, 2018Observed: 8.04 ft at 4:30PM Apr 16, 2018Observed: 8.07 ft at 4:45PM Apr 16, 2018Observed: 8.11 ft at 5:00PM Apr 16, 2018Observed: 8.15 ft at 5:15PM Apr 16, 2018Observed: 8.19 ft at 5:30PM Apr 16, 2018Observed: 8.22 ft at 5:45PM Apr 16, 2018Observed: 8.25 ft at 6:00PM Apr 16, 2018Observed: 8.29 ft at 6:15PM Apr 16, 2018Observed: 8.32 ft at 6:30PM Apr 16, 2018Observed: 8.36 ft at 6:45PM Apr 16, 2018Observed: 8.39 ft at 7:00PM Apr 16, 2018Observed: 8.42 ft at 7:15PM Apr 16, 2018Observed: 8.46 ft at 7:30PM Apr 16, 2018Observed: 8.49 ft at 7:45PM Apr 16, 2018Observed: 8.53 ft at 8:00PM Apr 16, 2018Observed: 8.56 ft at 8:15PM Apr 16, 2018Observed: 8.59 ft at 8:30PM Apr 16, 2018Observed: 8.62 ft at 8:45PM Apr 16, 2018Observed: 8.66 ft at 9:00PM Apr 16, 2018Observed: 8.69 ft at 9:15PM Apr 16, 2018Observed: 8.72 ft at 9:30PM Apr 16, 2018Observed: 8.74 ft at 9:45PM Apr 16, 2018Observed: 8.78 ft at 10:00PM Apr 16, 2018Observed: 8.82 ft at 10:15PM Apr 16, 2018Observed: 8.86 ft at 10:30PM Apr 16, 2018Observed: 8.88 ft at 10:45PM Apr 16, 2018Observed: 8.91 ft at 11:00PM Apr 16, 2018Observed: 8.93 ft at 11:15PM Apr 16, 2018Observed: 8.96 ft at 11:30PM Apr 16, 2018Observed: 9 ft at 11:45PM Apr 16, 2018Observed: 9.03 ft at 12:00AM Apr 17, 2018Observed: 9.05 ft at 12:15AM Apr 17, 2018Observed: 9.08 ft at 12:30AM Apr 17, 2018Observed: 9.11 ft at 12:45AM Apr 17, 2018Observed: 9.14 ft at 1:00AM Apr 17, 2018Observed: 9.17 ft at 1:15AM Apr 17, 2018Observed: 9.2 ft at 1:30AM Apr 17, 2018Observed: 9.24 ft at 1:45AM Apr 17, 2018Observed: 9.26 ft at 2:00AM Apr 17, 2018Observed: 9.3 ft at 2:15AM Apr 17, 2018Observed: 9.34 ft at 2:30AM Apr 17, 2018Observed: 9.37 ft at 2:45AM Apr 17, 2018Observed: 9.42 ft at 3:00AM Apr 17, 2018Observed: 9.46 ft at 3:15AM Apr 17, 2018Observed: 9.5 ft at 3:30AM Apr 17, 2018Observed: 9.55 ft at 3:45AM Apr 17, 2018Observed: 9.61 ft at 4:00AM Apr 17, 2018Observed: 9.68 ft at 4:15AM Apr 17, 2018Observed: 9.73 ft at 4:30AM Apr 17, 2018Observed: 9.8 ft at 4:45AM Apr 17, 2018Observed: 9.86 ft at 5:00AM Apr 17, 2018Observed: 9.93 ft at 5:15AM Apr 17, 2018Observed: 9.99 ft at 5:30AM Apr 17, 2018Observed: 10.07 ft at 5:45AM Apr 17, 2018Observed: 10.14 ft at 6:00AM Apr 17, 2018Observed: 10.21 ft at 6:15AM Apr 17, 2018Observed: 10.29 ft at 6:30AM Apr 17, 2018Observed: 10.36 ft at 6:45AM Apr 17, 2018Observed: 10.44 ft at 7:00AM Apr 17, 2018Observed: 10.51 ft at 7:15AM Apr 17, 2018Observed: 10.58 ft at 7:30AM Apr 17, 2018Observed: 10.65 ft at 7:45AM Apr 17, 2018Observed: 10.73 ft at 8:00AM Apr 17, 2018Observed: 10.8 ft at 8:15AM Apr 17, 2018Observed: 10.87 ft at 8:30AM Apr 17, 2018Observed: 10.94 ft at 8:45AM Apr 17, 2018Observed: 11.02 ft at 9:00AM Apr 17, 2018Observed: 11.08 ft at 9:15AM Apr 17, 2018Observed: 11.15 ft at 9:30AM Apr 17, 2018Observed: 11.2 ft at 9:45AM Apr 17, 2018Observed: 11.26 ft at 10:00AM Apr 17, 2018Observed: 11.33 ft at 10:15AM Apr 17, 2018Observed: 11.38 ft at 10:30AM Apr 17, 2018Observed: 11.44 ft at 10:45AM Apr 17, 2018Observed: 11.49 ft at 11:00AM Apr 17, 2018Observed: 11.54 ft at 11:15AM Apr 17, 2018Observed: 11.58 ft at 11:30AM Apr 17, 2018Observed: 11.62 ft at 11:45AM Apr 17, 2018Observed: 11.67 ft at 12:00PM Apr 17, 2018Observed: 11.71 ft at 12:15PM Apr 17, 2018Observed: 11.74 ft at 12:30PM Apr 17, 2018Observed: 11.77 ft at 12:45PM Apr 17, 2018Observed: 11.81 ft at 1:00PM Apr 17, 2018Observed: 11.83 ft at 1:15PM Apr 17, 2018Observed: 11.86 ft at 1:30PM Apr 17, 2018Observed: 11.88 ft at 1:45PM Apr 17, 2018Observed: 11.91 ft at 2:00PM Apr 17, 2018Observed: 11.94 ft at 2:15PM Apr 17, 2018Observed: 11.95 ft at 2:30PM Apr 17, 2018Observed: 11.96 ft at 2:45PM Apr 17, 2018Observed: 11.98 ft at 3:00PM Apr 17, 2018Observed: 11.99 ft at 3:15PM Apr 17, 2018Observed: 12.03 ft at 3:30PM Apr 17, 2018Observed: 12.05 ft at 3:45PM Apr 17, 2018Observed: 12.06 ft at 4:00PM Apr 17, 2018Observed: 12.08 ft at 4:15PM Apr 17, 2018Observed: 12.11 ft at 4:30PM Apr 17, 2018Observed: 12.12 ft at 4:45PM Apr 17, 2018Observed: 12.14 ft at 5:00PM Apr 17, 2018Observed: 12.16 ft at 5:15PM Apr 17, 2018Observed: 12.19 ft at 5:30PM Apr 17, 2018Observed: 12.21 ft at 5:45PM Apr 17, 2018Observed: 12.23 ft at 6:00PM Apr 17, 2018Observed: 12.26 ft at 6:15PM Apr 17, 2018Observed: 12.28 ft at 6:30PM Apr 17, 2018Observed: 12.31 ft at 6:45PM Apr 17, 2018Observed: 12.34 ft at 7:00PM Apr 17, 2018Observed: 12.38 ft at 7:15PM Apr 17, 2018Observed: 12.42 ft at 7:30PM Apr 17, 2018Observed: 12.44 ft at 7:45PM Apr 17, 2018Observed: 12.48 ft at 8:00PM Apr 17, 2018Observed: 12.53 ft at 8:15PM Apr 17, 2018Observed: 12.58 ft at 8:30PM Apr 17, 2018Observed: 12.61 ft at 8:45PM Apr 17, 2018Observed: 12.66 ft at 9:00PM Apr 17, 2018Observed: 12.73 ft at 9:15PM Apr 17, 2018Observed: 12.78 ft at 9:30PM Apr 17, 2018Observed: 12.83 ft at 9:45PM Apr 17, 2018Observed: 12.91 ft at 10:00PM Apr 17, 2018Observed: 12.96 ft at 10:15PM Apr 17, 2018Observed: 13.03 ft at 10:30PM Apr 17, 2018Observed: 13.11 ft at 10:45PM Apr 17, 2018Observed: 13.18 ft at 11:00PM Apr 17, 2018Observed: 13.25 ft at 11:15PM Apr 17, 2018Observed: 13.33 ft at 11:30PM Apr 17, 2018Observed: 13.4 ft at 11:45PM Apr 17, 2018Observed: 13.47 ft at 12:00AM Apr 18, 2018Observed: 13.57 ft at 12:15AM Apr 18, 2018Observed: 13.63 ft at 12:30AM Apr 18, 2018Observed: 13.71 ft at 12:45AM Apr 18, 2018Observed: 13.79 ft at 1:00AM Apr 18, 2018Observed: 13.86 ft at 1:15AM Apr 18, 2018Observed: 13.94 ft at 1:30AM Apr 18, 2018Observed: 14 ft at 1:45AM Apr 18, 2018Observed: 14.08 ft at 2:00AM Apr 18, 2018Observed: 14.15 ft at 2:15AM Apr 18, 2018Observed: 14.21 ft at 2:30AM Apr 18, 2018Observed: 14.28 ft at 2:45AM Apr 18, 2018Observed: 14.34 ft at 3:00AM Apr 18, 2018Observed: 14.4 ft at 3:15AM Apr 18, 2018Observed: 14.46 ft at 3:30AM Apr 18, 2018Observed: 14.51 ft at 3:45AM Apr 18, 2018Observed: 14.58 ft at 4:00AM Apr 18, 2018Observed: 14.63 ft at 4:15AM Apr 18, 2018Observed: 14.66 ft at 4:30AM Apr 18, 2018Observed: 14.71 ft at 4:45AM Apr 18, 2018Observed: 14.76 ft at 5:00AM Apr 18, 2018Observed: 14.79 ft at 5:15AM Apr 18, 2018Observed: 14.83 ft at 5:30AM Apr 18, 2018Observed: 14.87 ft at 5:45AM Apr 18, 2018Observed: 14.89 ft at 6:00AM Apr 18, 2018Observed: 14.93 ft at 6:15AM Apr 18, 2018Observed: 14.96 ft at 6:30AM Apr 18, 2018Observed: 14.99 ft at 6:45AM Apr 18, 2018Observed: 15 ft at 7:00AM Apr 18, 2018Observed: 15.03 ft at 7:15AM Apr 18, 2018Observed: 15.04 ft at 7:30AM Apr 18, 2018Observed: 15.06 ft at 7:45AM Apr 18, 2018Observed: 15.09 ft at 8:00AM Apr 18, 2018Observed: 15.09 ft at 8:15AM Apr 18, 2018Observed: 15.1 ft at 8:30AM Apr 18, 2018Observed: 15.11 ft at 8:45AM Apr 18, 2018Observed: 15.12 ft at 9:00AM Apr 18, 2018Observed: 15.12 ft at 9:15AM Apr 18, 2018Observed: 15.12 ft at 9:30AM Apr 18, 2018Highest Observation: 15.13 ft at 9:45AM Apr 18, 2018Highest Observation: 15.13 ft at 10:00AM Apr 18, 2018Observed: 15.12 ft at 10:15AM Apr 18, 2018Observed: 15.12 ft at 10:30AM Apr 18, 2018Observed: 15.12 ft at 10:45AM Apr 18, 2018Observed: 15.11 ft at 11:00AM Apr 18, 2018Observed: 15.11 ft at 11:15AM Apr 18, 2018Observed: 15.1 ft at 11:30AM Apr 18, 2018Observed: 15.1 ft at 11:45AM Apr 18, 2018Observed: 15.07 ft at 12:00PM Apr 18, 2018Observed: 15.05 ft at 12:15PM Apr 18, 2018Observed: 15.04 ft at 12:30PM Apr 18, 2018Observed: 15.03 ft at 12:45PM Apr 18, 2018Observed: 15 ft at 1:00PM Apr 18, 2018Observed: 14.99 ft at 1:15PM Apr 18, 2018Observed: 14.96 ft at 1:30PM Apr 18, 2018Observed: 14.95 ft at 1:45PM Apr 18, 2018Observed: 14.92 ft at 2:00PM Apr 18, 2018Observed: 14.88 ft at 2:15PM Apr 18, 2018Observed: 14.86 ft at 2:30PM Apr 18, 2018Observed: 14.83 ft at 2:45PM Apr 18, 2018Observed: 14.8 ft at 3:00PM Apr 18, 2018Observed: 14.78 ft at 3:15PM Apr 18, 2018Observed: 14.73 ft at 3:30PM Apr 18, 2018Observed: 14.72 ft at 3:45PM Apr 18, 2018Observed: 14.67 ft at 4:00PM Apr 18, 2018Observed: 14.64 ft at 4:15PM Apr 18, 2018Observed: 14.61 ft at 4:30PM Apr 18, 2018Observed: 14.57 ft at 4:45PM Apr 18, 2018Observed: 14.54 ft at 5:00PM Apr 18, 2018Observed: 14.5 ft at 5:15PM Apr 18, 2018Observed: 14.45 ft at 5:30PM Apr 18, 2018Observed: 14.42 ft at 5:45PM Apr 18, 2018Observed: 14.36 ft at 6:00PM Apr 18, 2018Observed: 14.33 ft at 6:15PM Apr 18, 2018Observed: 14.29 ft at 6:30PM Apr 18, 2018Observed: 14.25 ft at 6:45PM Apr 18, 2018Observed: 14.2 ft at 7:00PM Apr 18, 2018Observed: 14.16 ft at 7:15PM Apr 18, 2018Observed: 14.12 ft at 7:30PM Apr 18, 2018Observed: 14.07 ft at 7:45PM Apr 18, 2018Observed: 14.03 ft at 8:00PM Apr 18, 2018Observed: 13.98 ft at 8:15PM Apr 18, 2018Observed: 13.94 ft at 8:30PM Apr 18, 2018Observed: 13.89 ft at 8:45PM Apr 18, 2018Observed: 13.85 ft at 9:00PM Apr 18, 2018Observed: 13.8 ft at 9:15PM Apr 18, 2018Observed: 13.76 ft at 9:30PM Apr 18, 2018Observed: 13.71 ft at 9:45PM Apr 18, 2018Observed: 13.66 ft at 10:00PM Apr 18, 2018Observed: 13.62 ft at 10:15PM Apr 18, 2018Observed: 13.58 ft at 10:30PM Apr 18, 2018Observed: 13.53 ft at 10:45PM Apr 18, 2018Observed: 13.48 ft at 11:00PM Apr 18, 2018Observed: 13.44 ft at 11:15PM Apr 18, 2018Observed: 13.4 ft at 11:30PM Apr 18, 2018Observed: 13.35 ft at 11:45PM Apr 18, 2018Observed: 13.31 ft at 12:00AM Apr 19, 2018Observed: 13.26 ft at 12:15AM Apr 19, 2018Observed: 13.22 ft at 12:30AM Apr 19, 2018Observed: 13.18 ft at 12:45AM Apr 19, 2018Observed: 13.14 ft at 1:00AM Apr 19, 2018Observed: 13.09 ft at 1:15AM Apr 19, 2018Observed: 13.05 ft at 1:30AM Apr 19, 2018Observed: 13.01 ft at 1:45AM Apr 19, 2018Observed: 12.97 ft at 2:00AM Apr 19, 2018Observed: 12.92 ft at 2:15AM Apr 19, 2018Observed: 12.88 ft at 2:30AM Apr 19, 2018Observed: 12.84 ft at 2:45AM Apr 19, 2018Observed: 12.8 ft at 3:00AM Apr 19, 2018Observed: 12.76 ft at 3:15AM Apr 19, 2018Observed: 12.73 ft at 3:30AM Apr 19, 2018Observed: 12.69 ft at 3:45AM Apr 19, 2018Observed: 12.65 ft at 4:00AM Apr 19, 2018Observed: 12.61 ft at 4:15AM Apr 19, 2018Observed: 12.57 ft at 4:30AM Apr 19, 2018Observed: 12.54 ft at 4:45AM Apr 19, 2018Observed: 12.5 ft at 5:00AM Apr 19, 2018Observed: 12.47 ft at 5:15AM Apr 19, 2018Observed: 12.43 ft at 5:30AM Apr 19, 2018Observed: 12.4 ft at 5:45AM Apr 19, 2018Observed: 12.36 ft at 6:00AM Apr 19, 2018Observed: 12.33 ft at 6:15AM Apr 19, 2018Observed: 12.29 ft at 6:30AM Apr 19, 2018Observed: 12.26 ft at 6:45AM Apr 19, 2018Observed: 12.22 ft at 7:00AM Apr 19, 2018Observed: 12.19 ft at 7:15AM Apr 19, 2018Observed: 12.17 ft at 7:30AM Apr 19, 2018Observed: 12.13 ft at 7:45AM Apr 19, 2018Observed: 12.09 ft at 8:00AM Apr 19, 2018Observed: 12.07 ft at 8:15AM Apr 19, 2018Observed: 12.03 ft at 8:30AM Apr 19, 2018Observed: 12 ft at 8:45AM Apr 19, 2018Observed: 11.98 ft at 9:00AM Apr 19, 2018Observed: 11.95 ft at 9:15AM Apr 19, 2018Observed: 11.91 ft at 9:30AM Apr 19, 2018Observed: 11.89 ft at 9:45AM Apr 19, 2018Observed: 11.86 ft at 10:00AM Apr 19, 2018Observed: 11.83 ft at 10:15AM Apr 19, 2018Observed: 11.8 ft at 10:30AM Apr 19, 2018Observed: 11.77 ft at 10:45AM Apr 19, 2018Observed: 11.74 ft at 11:00AM Apr 19, 2018Observed: 11.72 ft at 11:15AM Apr 19, 2018Observed: 11.69 ft at 11:30AM Apr 19, 2018Observed: 11.65 ft at 11:45AM Apr 19, 2018Observed: 11.63 ft at 12:00PM Apr 19, 2018Observed: 11.61 ft at 12:15PM Apr 19, 2018Observed: 11.58 ft at 12:30PM Apr 19, 2018Observed: 11.55 ft at 12:45PM Apr 19, 2018Observed: 11.53 ft at 1:00PM Apr 19, 2018Observed: 11.49 ft at 1:15PM Apr 19, 2018Observed: 11.46 ft at 1:30PM Apr 19, 2018Observed: 11.45 ft at 1:45PM Apr 19, 2018Observed: 11.41 ft at 2:00PM Apr 19, 2018Observed: 11.39 ft at 2:15PM Apr 19, 2018Observed: 11.36 ft at 2:30PM Apr 19, 2018Observed: 11.34 ft at 2:45PM Apr 19, 2018Observed: 11.33 ft at 3:00PM Apr 19, 2018Observed: 11.29 ft at 3:15PM Apr 19, 2018Observed: 11.28 ft at 3:30PM Apr 19, 2018Observed: 11.26 ft at 3:45PM Apr 19, 2018Observed: 11.23 ft at 4:00PM Apr 19, 2018Observed: 11.22 ft at 4:15PM Apr 19, 2018Observed: 11.2 ft at 4:30PM Apr 19, 2018Observed: 11.18 ft at 4:45PM Apr 19, 2018Observed: 11.14 ft at 5:00PM Apr 19, 2018Observed: 11.13 ft at 5:15PM Apr 19, 2018Observed: 11.11 ft at 5:30PM Apr 19, 2018Observed: 11.08 ft at 5:45PM Apr 19, 2018Observed: 11.06 ft at 6:00PM Apr 19, 2018Observed: 11.04 ft at 6:15PM Apr 19, 2018Observed: 11.02 ft at 6:30PM Apr 19, 2018Observed: 11 ft at 6:45PM Apr 19, 2018Observed: 10.98 ft at 7:00PM Apr 19, 2018Observed: 10.97 ft at 7:15PM Apr 19, 2018Observed: 10.94 ft at 7:30PM Apr 19, 2018Observed: 10.92 ft at 7:45PM Apr 19, 2018Observed: 10.91 ft at 8:00PM Apr 19, 2018Observed: 10.88 ft at 8:15PM Apr 19, 2018Observed: 10.87 ft at 8:30PM Apr 19, 2018Observed: 10.85 ft at 8:45PM Apr 19, 2018Observed: 10.83 ft at 9:00PM Apr 19, 2018Observed: 10.81 ft at 9:15PM Apr 19, 2018Observed: 10.8 ft at 9:30PM Apr 19, 2018Observed: 10.78 ft at 9:45PM Apr 19, 2018Observed: 10.76 ft at 10:00PM Apr 19, 2018Observed: 10.74 ft at 10:15PM Apr 19, 2018Observed: 10.73 ft at 10:30PM Apr 19, 2018Observed: 10.71 ft at 10:45PM Apr 19, 2018Observed: 10.69 ft at 11:00PM Apr 19, 2018Observed: 10.68 ft at 11:15PM Apr 19, 2018Observed: 10.66 ft at 11:30PM Apr 19, 2018Observed: 10.64 ft at 11:45PM Apr 19, 2018Observed: 10.63 ft at 12:00AM Apr 20, 2018Observed: 10.61 ft at 12:15AM Apr 20, 2018Observed: 10.59 ft at 12:30AM Apr 20, 2018Observed: 10.57 ft at 12:45AM Apr 20, 2018Observed: 10.56 ft at 1:00AM Apr 20, 2018Observed: 10.54 ft at 1:15AM Apr 20, 2018Observed: 10.52 ft at 1:30AM Apr 20, 2018Observed: 10.51 ft at 1:45AM Apr 20, 2018Observed: 10.49 ft at 2:00AM Apr 20, 2018Observed: 10.47 ft at 2:15AM Apr 20, 2018Observed: 10.46 ft at 2:30AM Apr 20, 2018Observed: 10.44 ft at 2:45AM Apr 20, 2018Observed: 10.42 ft at 3:00AM Apr 20, 2018Observed: 10.41 ft at 3:15AM Apr 20, 2018Observed: 10.39 ft at 3:30AM Apr 20, 2018Observed: 10.38 ft at 3:45AM Apr 20, 2018Observed: 10.36 ft at 4:00AM Apr 20, 2018Observed: 10.34 ft at 4:15AM Apr 20, 2018Observed: 10.32 ft at 4:30AM Apr 20, 2018Observed: 10.31 ft at 4:45AM Apr 20, 2018Observed: 10.3 ft at 5:00AM Apr 20, 2018Observed: 10.28 ft at 5:15AM Apr 20, 2018Observed: 10.26 ft at 5:30AM Apr 20, 2018Observed: 10.25 ft at 5:45AM Apr 20, 2018Observed: 10.23 ft at 6:00AM Apr 20, 2018Observed: 10.21 ft at 6:15AM Apr 20, 2018Observed: 10.2 ft at 6:30AM Apr 20, 2018Observed: 10.18 ft at 6:45AM Apr 20, 2018Observed: 10.16 ft at 7:00AM Apr 20, 2018Observed: 10.14 ft at 7:15AM Apr 20, 2018Observed: 10.13 ft at 7:30AM Apr 20, 2018Observed: 10.12 ft at 7:45AM Apr 20, 2018Observed: 10.1 ft at 8:00AM Apr 20, 2018Observed: 10.08 ft at 8:15AM Apr 20, 2018Observed: 10.06 ft at 8:30AM Apr 20, 2018Observed: 10.05 ft at 8:45AM Apr 20, 2018Observed: 10.02 ft at 9:00AM Apr 20, 2018Observed: 10.01 ft at 9:15AM Apr 20, 2018Observed: 9.99 ft at 9:30AM Apr 20, 2018Observed: 9.97 ft at 9:45AM Apr 20, 2018Observed: 9.96 ft at 10:00AM Apr 20, 2018Observed: 9.95 ft at 10:15AM Apr 20, 2018Observed: 9.92 ft at 10:30AM Apr 20, 2018Observed: 9.91 ft at 10:45AM Apr 20, 2018Observed: 9.89 ft at 11:00AM Apr 20, 2018Observed: 9.87 ft at 11:15AM Apr 20, 2018Observed: 9.86 ft at 11:30AM Apr 20, 2018Observed: 9.85 ft at 11:45AM Apr 20, 2018Observed: 9.83 ft at 12:00PM Apr 20, 2018Observed: 9.81 ft at 12:15PM Apr 20, 2018Observed: 9.79 ft at 12:30PM Apr 20, 2018Observed: 9.78 ft at 12:45PM Apr 20, 2018Highest Forecast: 9.8 ft 2:00PM Apr 20, 2018Forecast: 9.5 ft 8:00PM Apr 20, 2018Forecast: 9.2 ft 2:00AM Apr 21, 2018Forecast: 8.9 ft 8:00AM Apr 21, 2018Forecast: 8.7 ft 2:00PM Apr 21, 2018Forecast: 8.4 ft 8:00PM Apr 21, 2018Forecast: 8.2 ft 2:00AM Apr 22, 2018Forecast: 8.1 ft 8:00AM Apr 22, 2018Forecast: 7.9 ft 2:00PM Apr 22, 2018Forecast: 7.7 ft 8:00PM Apr 22, 2018Forecast: 7.6 ft 2:00AM Apr 23, 2018Forecast: 7.5 ft 8:00AM Apr 23, 2018USGS--Water Resources of the United StatesEDFM2(plotting HGIRG) Graph Created (1:54PM Apr 20, 2018)ObservedForecast (issued 11:40AM Apr 20)Latest observed value: 9.78 ft at 12:45 PM EDT 20-Apr-2018. Flood Stage is 15 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Potomac River at Edwards Ferry are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Point of Rocks Upstream Gauge Downstream Gauge Downstream Gauge - near Washington DC (Little Falls)
Flood Categories (in feet)
Major Flood Stage: 24
Moderate Flood Stage: 17
Flood Stage: 15
Action Stage: 12.25
Low Stage (in feet): -9999

Historic Crests
(1) 21.09 ft on 05/17/2014
(2) 19.77 ft on 10/31/2012
(3) 17.63 ft on 02/05/2016
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(P): Preliminary values subject to further review.

Recent Crests
(1) 17.63 ft on 02/05/2016
(2) 21.09 ft on 05/17/2014
(3) 16.04 ft on 05/10/2013
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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.

Zoom Level:14
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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
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28 Tchiffely Mill Road begins to flood due to backwater effects. Most of the C&O Canal towpath is flooded.
26 Water covers the lock at Edwards Ferry. The access road to Violettes Lock is flooded.
24 Water reaches the first floor ceiling at Whites Ferry store. Significant portions of the C&O Canal towpath are flooded. Backwater flooding is affecting homes on the Loudoun County side of the river near Broad Run in Sterling.
20 The basements of the Edwards Ferry Lockhouse and Rileys Lockhouse are flooded. Backwater flooding may affect homes on the Loudoun County side of the river near Broad Run in Sterling.
18.5 The parking lot at Edwards Ferry is completely covered by water. The parking lot at Seneca is partially flooded.
17 Floodwaters begin to enter the store at Whites Ferry.
15 Water reaches the boat ramp and lower parking area at Edwards Ferry, and begins to inundate areas near Whites Ferry.
12.25 Water reaches the Whites Ferry area. Ferry service may be suspended.
About This Location Collapse

Latitude: 39.098611° N, Longitude: 77.471111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 15 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 198 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:

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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: 21-Dec-2016 10:38 PM
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