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Hydrograph River at a Glance Download
South Branch Potomac River near Petersburg Stage (ft)Flow (kcfs)Observed: 4.93 ft at 4:30PM Jun 19, 2018Observed: 4.93 ft at 4:45PM Jun 19, 2018Observed: 4.93 ft at 5:00PM Jun 19, 2018Observed: 4.93 ft at 5:15PM Jun 19, 2018Observed: 4.93 ft at 5:30PM Jun 19, 2018Observed: 4.93 ft at 5:45PM Jun 19, 2018Observed: 4.93 ft at 6:00PM Jun 19, 2018Observed: 4.93 ft at 6:15PM Jun 19, 2018Observed: 4.93 ft at 6:30PM Jun 19, 2018Observed: 4.94 ft at 6:45PM Jun 19, 2018Observed: 4.94 ft at 7:00PM Jun 19, 2018Observed: 4.94 ft at 7:15PM Jun 19, 2018Observed: 4.94 ft at 7:30PM Jun 19, 2018Observed: 4.94 ft at 7:45PM Jun 19, 2018Observed: 4.94 ft at 8:00PM Jun 19, 2018Observed: 4.94 ft at 8:15PM Jun 19, 2018Observed: 4.94 ft at 8:30PM Jun 19, 2018Observed: 4.94 ft at 8:45PM Jun 19, 2018Observed: 4.93 ft at 9:00PM Jun 19, 2018Observed: 4.93 ft at 9:15PM Jun 19, 2018Observed: 4.94 ft at 9:30PM Jun 19, 2018Observed: 4.93 ft at 9:45PM Jun 19, 2018Observed: 4.93 ft at 10:00PM Jun 19, 2018Observed: 4.93 ft at 10:15PM Jun 19, 2018Observed: 4.93 ft at 10:30PM Jun 19, 2018Observed: 4.93 ft at 10:45PM Jun 19, 2018Observed: 4.93 ft at 11:00PM Jun 19, 2018Observed: 4.93 ft at 11:15PM Jun 19, 2018Observed: 4.93 ft at 11:30PM Jun 19, 2018Observed: 4.93 ft at 11:45PM Jun 19, 2018Observed: 4.93 ft at 12:00AM Jun 20, 2018Observed: 4.93 ft at 12:15AM Jun 20, 2018Observed: 4.92 ft at 12:30AM Jun 20, 2018Observed: 4.92 ft at 12:45AM Jun 20, 2018Observed: 4.91 ft at 1:00AM Jun 20, 2018Observed: 4.92 ft at 1:15AM Jun 20, 2018Observed: 4.92 ft at 1:30AM Jun 20, 2018Observed: 4.91 ft at 1:45AM Jun 20, 2018Observed: 4.92 ft at 2:00AM Jun 20, 2018Observed: 4.91 ft at 2:15AM Jun 20, 2018Observed: 4.91 ft at 2:30AM Jun 20, 2018Observed: 4.91 ft at 2:45AM Jun 20, 2018Observed: 4.91 ft at 3:00AM Jun 20, 2018Observed: 4.92 ft at 3:15AM Jun 20, 2018Observed: 4.92 ft at 3:30AM Jun 20, 2018Observed: 4.92 ft at 3:45AM Jun 20, 2018Observed: 4.91 ft at 4:00AM Jun 20, 2018Observed: 4.93 ft at 4:15AM Jun 20, 2018Observed: 4.92 ft at 4:30AM Jun 20, 2018Observed: 4.93 ft at 4:45AM Jun 20, 2018Observed: 4.92 ft at 5:00AM Jun 20, 2018Observed: 4.92 ft at 5:15AM Jun 20, 2018Observed: 4.92 ft at 5:30AM Jun 20, 2018Observed: 4.92 ft at 5:45AM Jun 20, 2018Observed: 4.92 ft at 6:00AM Jun 20, 2018Observed: 4.92 ft at 6:15AM Jun 20, 2018Observed: 4.92 ft at 6:30AM Jun 20, 2018Observed: 4.92 ft at 6:45AM Jun 20, 2018Observed: 4.92 ft at 7:00AM Jun 20, 2018Observed: 4.92 ft at 7:15AM Jun 20, 2018Observed: 4.92 ft at 7:30AM Jun 20, 2018Observed: 4.92 ft at 7:45AM Jun 20, 2018Observed: 4.93 ft at 8:00AM Jun 20, 2018Observed: 4.92 ft at 8:15AM Jun 20, 2018Observed: 4.92 ft at 8:30AM Jun 20, 2018Observed: 4.92 ft at 8:45AM Jun 20, 2018Observed: 4.93 ft at 9:00AM Jun 20, 2018Observed: 4.93 ft at 9:15AM Jun 20, 2018Observed: 4.93 ft at 9:30AM Jun 20, 2018Observed: 4.93 ft at 9:45AM Jun 20, 2018Observed: 4.94 ft at 10:00AM Jun 20, 2018Observed: 4.94 ft at 10:15AM Jun 20, 2018Observed: 4.94 ft at 10:30AM Jun 20, 2018Observed: 4.95 ft at 10:45AM Jun 20, 2018Observed: 4.95 ft at 11:00AM Jun 20, 2018Observed: 4.95 ft at 11:15AM Jun 20, 2018Observed: 4.95 ft at 11:30AM Jun 20, 2018Observed: 4.95 ft at 11:45AM Jun 20, 2018Observed: 4.95 ft at 12:00PM Jun 20, 2018Observed: 4.94 ft at 12:15PM Jun 20, 2018Observed: 4.94 ft at 12:30PM Jun 20, 2018Observed: 4.94 ft at 12:45PM Jun 20, 2018Observed: 4.94 ft at 1:00PM Jun 20, 2018Observed: 4.94 ft at 1:15PM Jun 20, 2018Observed: 4.93 ft at 1:30PM Jun 20, 2018Observed: 4.94 ft at 1:45PM Jun 20, 2018Observed: 4.94 ft at 2:00PM Jun 20, 2018Observed: 4.93 ft at 2:15PM Jun 20, 2018Observed: 4.94 ft at 2:30PM Jun 20, 2018Observed: 4.93 ft at 2:45PM Jun 20, 2018Observed: 4.93 ft at 3:00PM Jun 20, 2018Observed: 4.93 ft at 3:15PM Jun 20, 2018Observed: 4.93 ft at 3:30PM Jun 20, 2018Observed: 4.92 ft at 3:45PM Jun 20, 2018Observed: 4.93 ft at 4:00PM Jun 20, 2018Observed: 4.93 ft at 4:15PM Jun 20, 2018Observed: 4.92 ft at 4:30PM Jun 20, 2018Observed: 4.93 ft at 4:45PM Jun 20, 2018Observed: 4.92 ft at 5:00PM Jun 20, 2018Observed: 4.92 ft at 5:15PM Jun 20, 2018Observed: 4.92 ft at 5:30PM Jun 20, 2018Observed: 4.92 ft at 5:45PM Jun 20, 2018Observed: 4.91 ft at 6:00PM Jun 20, 2018Observed: 4.91 ft at 6:15PM Jun 20, 2018Observed: 4.91 ft at 6:30PM Jun 20, 2018Observed: 4.92 ft at 6:45PM Jun 20, 2018Observed: 4.92 ft at 7:00PM Jun 20, 2018Observed: 4.92 ft at 7:15PM Jun 20, 2018Observed: 4.9 ft at 7:30PM Jun 20, 2018Observed: 4.91 ft at 7:45PM Jun 20, 2018Observed: 4.91 ft at 8:00PM Jun 20, 2018Observed: 4.92 ft at 8:15PM Jun 20, 2018Observed: 4.92 ft at 8:30PM Jun 20, 2018Observed: 4.92 ft at 8:45PM Jun 20, 2018Observed: 4.91 ft at 9:00PM Jun 20, 2018Observed: 4.92 ft at 9:15PM Jun 20, 2018Observed: 4.91 ft at 9:30PM Jun 20, 2018Observed: 4.9 ft at 9:45PM Jun 20, 2018Observed: 4.91 ft at 10:00PM Jun 20, 2018Observed: 4.9 ft at 10:15PM Jun 20, 2018Observed: 4.91 ft at 10:30PM Jun 20, 2018Observed: 4.91 ft at 10:45PM Jun 20, 2018Observed: 4.9 ft at 11:00PM Jun 20, 2018Observed: 4.9 ft at 11:15PM Jun 20, 2018Observed: 4.91 ft at 11:30PM Jun 20, 2018Observed: 4.91 ft at 11:45PM Jun 20, 2018Observed: 4.91 ft at 12:00AM Jun 21, 2018Observed: 4.91 ft at 12:15AM Jun 21, 2018Observed: 4.91 ft at 12:30AM Jun 21, 2018Observed: 4.91 ft at 12:45AM Jun 21, 2018Observed: 4.9 ft at 1:00AM Jun 21, 2018Observed: 4.91 ft at 1:15AM Jun 21, 2018Observed: 4.91 ft at 1:30AM Jun 21, 2018Observed: 4.91 ft at 1:45AM Jun 21, 2018Observed: 4.91 ft at 2:00AM Jun 21, 2018Observed: 4.92 ft at 2:15AM Jun 21, 2018Observed: 4.92 ft at 2:30AM Jun 21, 2018Observed: 4.91 ft at 2:45AM Jun 21, 2018Observed: 4.91 ft at 3:00AM Jun 21, 2018Observed: 4.91 ft at 3:15AM Jun 21, 2018Observed: 4.91 ft at 3:30AM Jun 21, 2018Observed: 4.91 ft at 3:45AM Jun 21, 2018Observed: 4.91 ft at 4:00AM Jun 21, 2018Observed: 4.91 ft at 4:15AM Jun 21, 2018Observed: 4.91 ft at 4:30AM Jun 21, 2018Observed: 4.9 ft at 4:45AM Jun 21, 2018Observed: 4.9 ft at 5:00AM Jun 21, 2018Observed: 4.9 ft at 5:15AM Jun 21, 2018Observed: 4.9 ft at 5:30AM Jun 21, 2018Observed: 4.9 ft at 5:45AM Jun 21, 2018Observed: 4.9 ft at 6:00AM Jun 21, 2018Observed: 4.9 ft at 6:15AM Jun 21, 2018Observed: 4.9 ft at 6:30AM Jun 21, 2018Observed: 4.9 ft at 6:45AM Jun 21, 2018Observed: 4.9 ft at 7:00AM Jun 21, 2018Observed: 4.9 ft at 7:15AM Jun 21, 2018Observed: 4.9 ft at 7:30AM Jun 21, 2018Observed: 4.91 ft at 7:45AM Jun 21, 2018Observed: 4.91 ft at 8:00AM Jun 21, 2018Observed: 4.91 ft at 8:15AM Jun 21, 2018Observed: 4.91 ft at 8:30AM Jun 21, 2018Observed: 4.92 ft at 8:45AM Jun 21, 2018Observed: 4.92 ft at 9:00AM Jun 21, 2018Observed: 4.92 ft at 9:15AM Jun 21, 2018Observed: 4.93 ft at 9:30AM Jun 21, 2018Observed: 4.93 ft at 9:45AM Jun 21, 2018Observed: 4.93 ft at 10:00AM Jun 21, 2018Observed: 4.93 ft at 10:15AM Jun 21, 2018Observed: 4.93 ft at 10:30AM Jun 21, 2018Observed: 4.93 ft at 10:45AM Jun 21, 2018Observed: 4.93 ft at 11:00AM Jun 21, 2018Observed: 4.93 ft at 11:15AM Jun 21, 2018Observed: 4.93 ft at 11:30AM Jun 21, 2018Observed: 4.94 ft at 11:45AM Jun 21, 2018Observed: 4.93 ft at 12:00PM Jun 21, 2018Observed: 4.93 ft at 12:15PM Jun 21, 2018Observed: 4.92 ft at 12:30PM Jun 21, 2018Observed: 4.92 ft at 12:45PM Jun 21, 2018Observed: 4.92 ft at 1:00PM Jun 21, 2018Observed: 4.92 ft at 1:15PM Jun 21, 2018Observed: 4.92 ft at 1:30PM Jun 21, 2018Observed: 4.92 ft at 1:45PM Jun 21, 2018Observed: 4.92 ft at 2:00PM Jun 21, 2018Observed: 4.92 ft at 2:15PM Jun 21, 2018Observed: 4.92 ft at 2:30PM Jun 21, 2018Observed: 4.92 ft at 2:45PM Jun 21, 2018Observed: 4.92 ft at 3:00PM Jun 21, 2018Observed: 4.91 ft at 3:15PM Jun 21, 2018Observed: 4.92 ft at 3:30PM Jun 21, 2018Observed: 4.92 ft at 3:45PM Jun 21, 2018Observed: 4.92 ft at 4:00PM Jun 21, 2018Observed: 4.92 ft at 4:15PM Jun 21, 2018Observed: 4.92 ft at 4:30PM Jun 21, 2018Observed: 4.92 ft at 4:45PM Jun 21, 2018Observed: 4.92 ft at 5:00PM Jun 21, 2018Observed: 4.92 ft at 5:15PM Jun 21, 2018Observed: 4.92 ft at 5:30PM Jun 21, 2018Observed: 4.92 ft at 5:45PM Jun 21, 2018Observed: 4.92 ft at 6:00PM Jun 21, 2018Observed: 4.92 ft at 6:15PM Jun 21, 2018Observed: 4.92 ft at 6:30PM Jun 21, 2018Observed: 4.92 ft at 6:45PM Jun 21, 2018Observed: 4.92 ft at 7:00PM Jun 21, 2018Observed: 4.93 ft at 7:15PM Jun 21, 2018Observed: 4.93 ft at 7:30PM Jun 21, 2018Observed: 4.93 ft at 7:45PM Jun 21, 2018Observed: 4.94 ft at 8:00PM Jun 21, 2018Observed: 4.93 ft at 8:15PM Jun 21, 2018Observed: 4.94 ft at 8:30PM Jun 21, 2018Observed: 4.96 ft at 8:45PM Jun 21, 2018Observed: 4.98 ft at 9:00PM Jun 21, 2018Observed: 5.01 ft at 9:15PM Jun 21, 2018Observed: 5.05 ft at 9:30PM Jun 21, 2018Observed: 5.07 ft at 9:45PM Jun 21, 2018Observed: 5.07 ft at 10:00PM Jun 21, 2018Observed: 5.06 ft at 10:15PM Jun 21, 2018Observed: 5.05 ft at 10:30PM Jun 21, 2018Observed: 5.05 ft at 10:45PM Jun 21, 2018Observed: 5.04 ft at 11:00PM Jun 21, 2018Observed: 5.05 ft at 11:15PM Jun 21, 2018Observed: 5.05 ft at 11:30PM Jun 21, 2018Observed: 5.04 ft at 11:45PM Jun 21, 2018Observed: 5.03 ft at 12:00AM Jun 22, 2018Observed: 5.04 ft at 12:15AM Jun 22, 2018Observed: 5.04 ft at 12:30AM Jun 22, 2018Observed: 5.04 ft at 12:45AM Jun 22, 2018Observed: 5.04 ft at 1:00AM Jun 22, 2018Observed: 5.05 ft at 1:15AM Jun 22, 2018Observed: 5.07 ft at 1:30AM Jun 22, 2018Observed: 5.08 ft at 1:45AM Jun 22, 2018Observed: 5.09 ft at 2:00AM Jun 22, 2018Observed: 5.1 ft at 2:15AM Jun 22, 2018Observed: 5.12 ft at 2:30AM Jun 22, 2018Observed: 5.14 ft at 2:45AM Jun 22, 2018Observed: 5.15 ft at 3:00AM Jun 22, 2018Observed: 5.17 ft at 3:15AM Jun 22, 2018Observed: 5.19 ft at 3:30AM Jun 22, 2018Observed: 5.22 ft at 3:45AM Jun 22, 2018Observed: 5.26 ft at 4:00AM Jun 22, 2018Observed: 5.32 ft at 4:15AM Jun 22, 2018Observed: 5.36 ft at 4:30AM Jun 22, 2018Observed: 5.39 ft at 4:45AM Jun 22, 2018Observed: 5.43 ft at 5:00AM Jun 22, 2018Observed: 5.47 ft at 5:15AM Jun 22, 2018Observed: 5.5 ft at 5:30AM Jun 22, 2018Observed: 5.51 ft at 5:45AM Jun 22, 2018Observed: 5.52 ft at 6:00AM Jun 22, 2018Observed: 5.53 ft at 6:15AM Jun 22, 2018Observed: 5.55 ft at 6:30AM Jun 22, 2018Observed: 5.55 ft at 6:45AM Jun 22, 2018Observed: 5.55 ft at 7:00AM Jun 22, 2018Observed: 5.57 ft at 7:15AM Jun 22, 2018Observed: 5.58 ft at 7:30AM Jun 22, 2018Observed: 5.59 ft at 7:45AM Jun 22, 2018Observed: 5.62 ft at 8:00AM Jun 22, 2018Observed: 5.69 ft at 8:15AM Jun 22, 2018Observed: 5.78 ft at 8:30AM Jun 22, 2018Observed: 5.87 ft at 8:45AM Jun 22, 2018Observed: 5.92 ft at 9:00AM Jun 22, 2018Observed: 5.98 ft at 9:15AM Jun 22, 2018Observed: 6.02 ft at 9:30AM Jun 22, 2018Observed: 6.07 ft at 9:45AM Jun 22, 2018Observed: 6.11 ft at 10:00AM Jun 22, 2018Observed: 6.14 ft at 10:15AM Jun 22, 2018Observed: 6.16 ft at 10:30AM Jun 22, 2018Observed: 6.17 ft at 10:45AM Jun 22, 2018Observed: 6.16 ft at 11:00AM Jun 22, 2018Observed: 6.16 ft at 11:15AM Jun 22, 2018Observed: 6.15 ft at 11:30AM Jun 22, 2018Observed: 6.15 ft at 11:45AM Jun 22, 2018Observed: 6.13 ft at 12:00PM Jun 22, 2018Observed: 6.13 ft at 12:15PM Jun 22, 2018Observed: 6.13 ft at 12:30PM Jun 22, 2018Observed: 6.13 ft at 12:45PM Jun 22, 2018Observed: 6.16 ft at 1:00PM Jun 22, 2018Observed: 6.19 ft at 1:15PM Jun 22, 2018Observed: 6.24 ft at 1:30PM Jun 22, 2018Observed: 6.29 ft at 1:45PM Jun 22, 2018Observed: 6.34 ft at 2:00PM Jun 22, 2018Observed: 6.36 ft at 2:15PM Jun 22, 2018Observed: 6.4 ft at 2:30PM Jun 22, 2018Observed: 6.41 ft at 2:45PM Jun 22, 2018Observed: 6.42 ft at 3:00PM Jun 22, 2018Observed: 6.4 ft at 3:15PM Jun 22, 2018Observed: 6.41 ft at 3:30PM Jun 22, 2018Observed: 6.4 ft at 3:45PM Jun 22, 2018Observed: 6.38 ft at 4:00PM Jun 22, 2018Observed: 6.37 ft at 4:15PM Jun 22, 2018Observed: 6.35 ft at 4:30PM Jun 22, 2018Observed: 6.33 ft at 4:45PM Jun 22, 2018Observed: 6.32 ft at 5:00PM Jun 22, 2018Observed: 6.31 ft at 5:15PM Jun 22, 2018Observed: 6.29 ft at 5:30PM Jun 22, 2018Observed: 6.28 ft at 5:45PM Jun 22, 2018Observed: 6.27 ft at 6:00PM Jun 22, 2018Observed: 6.26 ft at 6:15PM Jun 22, 2018Observed: 6.25 ft at 6:30PM Jun 22, 2018Observed: 6.24 ft at 6:45PM Jun 22, 2018Observed: 6.23 ft at 7:00PM Jun 22, 2018Observed: 6.22 ft at 7:15PM Jun 22, 2018Observed: 6.22 ft at 7:30PM Jun 22, 2018Observed: 6.19 ft at 7:45PM Jun 22, 2018Observed: 6.19 ft at 8:00PM Jun 22, 2018Observed: 6.18 ft at 8:15PM Jun 22, 2018Observed: 6.16 ft at 8:30PM Jun 22, 2018Observed: 6.16 ft at 8:45PM Jun 22, 2018Observed: 6.15 ft at 9:00PM Jun 22, 2018Observed: 6.14 ft at 9:15PM Jun 22, 2018Observed: 6.14 ft at 9:30PM Jun 22, 2018Observed: 6.11 ft at 9:45PM Jun 22, 2018Observed: 6.11 ft at 10:00PM Jun 22, 2018Observed: 6.11 ft at 10:15PM Jun 22, 2018Observed: 6.11 ft at 10:30PM Jun 22, 2018Observed: 6.13 ft at 10:45PM Jun 22, 2018Observed: 6.14 ft at 11:00PM Jun 22, 2018Observed: 6.17 ft at 11:15PM Jun 22, 2018Observed: 6.22 ft at 11:30PM Jun 22, 2018Observed: 6.3 ft at 11:45PM Jun 22, 2018Observed: 6.41 ft at 12:00AM Jun 23, 2018Observed: 6.47 ft at 12:15AM Jun 23, 2018Observed: 6.51 ft at 12:30AM Jun 23, 2018Observed: 6.54 ft at 12:45AM Jun 23, 2018Observed: 6.56 ft at 1:00AM Jun 23, 2018Observed: 6.57 ft at 1:15AM Jun 23, 2018Observed: 6.58 ft at 1:30AM Jun 23, 2018Observed: 6.59 ft at 1:45AM Jun 23, 2018Observed: 6.59 ft at 2:00AM Jun 23, 2018Observed: 6.61 ft at 2:15AM Jun 23, 2018Observed: 6.64 ft at 2:30AM Jun 23, 2018Observed: 6.68 ft at 2:45AM Jun 23, 2018Observed: 6.76 ft at 3:00AM Jun 23, 2018Observed: 6.97 ft at 3:15AM Jun 23, 2018Observed: 7.28 ft at 3:30AM Jun 23, 2018Observed: 7.58 ft at 3:45AM Jun 23, 2018Observed: 7.76 ft at 4:00AM Jun 23, 2018Observed: 7.87 ft at 4:15AM Jun 23, 2018Observed: 7.91 ft at 4:30AM Jun 23, 2018Observed: 7.95 ft at 4:45AM Jun 23, 2018Observed: 7.95 ft at 5:00AM Jun 23, 2018Observed: 8.01 ft at 5:15AM Jun 23, 2018Observed: 8.04 ft at 5:30AM Jun 23, 2018Observed: 8.11 ft at 5:45AM Jun 23, 2018Observed: 8.14 ft at 6:00AM Jun 23, 2018Observed: 8.18 ft at 6:15AM Jun 23, 2018Observed: 8.22 ft at 6:30AM Jun 23, 2018Observed: 8.21 ft at 6:45AM Jun 23, 2018Observed: 8.21 ft at 7:00AM Jun 23, 2018Observed: 8.19 ft at 7:15AM Jun 23, 2018Observed: 8.13 ft at 7:30AM Jun 23, 2018Observed: 8.17 ft at 7:45AM Jun 23, 2018Observed: 8.2 ft at 8:00AM Jun 23, 2018Observed: 8.28 ft at 8:15AM Jun 23, 2018Observed: 8.35 ft at 8:30AM Jun 23, 2018Observed: 8.39 ft at 8:45AM Jun 23, 2018Observed: 8.42 ft at 9:00AM Jun 23, 2018Highest Observation: 8.43 ft at 9:15AM Jun 23, 2018Observed: 8.41 ft at 9:30AM Jun 23, 2018Observed: 8.4 ft at 9:45AM Jun 23, 2018Observed: 8.36 ft at 10:00AM Jun 23, 2018Observed: 8.33 ft at 10:15AM Jun 23, 2018Observed: 8.29 ft at 10:30AM Jun 23, 2018Observed: 8.23 ft at 10:45AM Jun 23, 2018Observed: 8.18 ft at 11:00AM Jun 23, 2018Observed: 8.17 ft at 11:15AM Jun 23, 2018Observed: 8.14 ft at 11:30AM Jun 23, 2018Observed: 8.08 ft at 11:45AM Jun 23, 2018Observed: 8.09 ft at 12:00PM Jun 23, 2018Observed: 8.04 ft at 12:15PM Jun 23, 2018Observed: 8 ft at 12:30PM Jun 23, 2018Observed: 7.97 ft at 12:45PM Jun 23, 2018Observed: 7.96 ft at 1:00PM Jun 23, 2018Observed: 7.92 ft at 1:15PM Jun 23, 2018Observed: 7.87 ft at 1:30PM Jun 23, 2018Observed: 7.87 ft at 1:45PM Jun 23, 2018Observed: 7.83 ft at 2:00PM Jun 23, 2018Observed: 7.79 ft at 2:15PM Jun 23, 2018Observed: 7.76 ft at 2:30PM Jun 23, 2018Observed: 7.75 ft at 2:45PM Jun 23, 2018Observed: 7.73 ft at 3:00PM Jun 23, 2018Observed: 7.71 ft at 3:15PM Jun 23, 2018Observed: 7.68 ft at 3:30PM Jun 23, 2018Observed: 7.64 ft at 3:45PM Jun 23, 2018Observed: 7.65 ft at 4:00PM Jun 23, 2018Observed: 7.62 ft at 4:15PM Jun 23, 2018Observed: 7.61 ft at 4:30PM Jun 23, 2018Observed: 7.6 ft at 4:45PM Jun 23, 2018Observed: 7.58 ft at 5:00PM Jun 23, 2018Observed: 7.56 ft at 5:15PM Jun 23, 2018Observed: 7.57 ft at 5:30PM Jun 23, 2018Observed: 7.53 ft at 5:45PM Jun 23, 2018Observed: 7.51 ft at 6:00PM Jun 23, 2018Observed: 7.48 ft at 6:15PM Jun 23, 2018Observed: 7.45 ft at 6:30PM Jun 23, 2018Observed: 7.45 ft at 6:45PM Jun 23, 2018Observed: 7.4 ft at 7:00PM Jun 23, 2018Observed: 7.39 ft at 7:15PM Jun 23, 2018Observed: 7.36 ft at 7:30PM Jun 23, 2018Observed: 7.37 ft at 7:45PM Jun 23, 2018Observed: 7.32 ft at 8:00PM Jun 23, 2018Observed: 7.32 ft at 8:15PM Jun 23, 2018Observed: 7.29 ft at 8:30PM Jun 23, 2018Observed: 7.26 ft at 8:45PM Jun 23, 2018Observed: 7.27 ft at 9:00PM Jun 23, 2018Observed: 7.25 ft at 9:15PM Jun 23, 2018Observed: 7.22 ft at 9:30PM Jun 23, 2018Observed: 7.21 ft at 9:45PM Jun 23, 2018Observed: 7.17 ft at 10:00PM Jun 23, 2018Observed: 7.17 ft at 10:15PM Jun 23, 2018Observed: 7.16 ft at 10:30PM Jun 23, 2018Observed: 7.13 ft at 10:45PM Jun 23, 2018Observed: 7.11 ft at 11:00PM Jun 23, 2018Observed: 7.09 ft at 11:15PM Jun 23, 2018Observed: 7.09 ft at 11:30PM Jun 23, 2018Observed: 7.06 ft at 11:45PM Jun 23, 2018Observed: 7.04 ft at 12:00AM Jun 24, 2018Observed: 7.02 ft at 12:15AM Jun 24, 2018Observed: 7.01 ft at 12:30AM Jun 24, 2018Observed: 6.98 ft at 12:45AM Jun 24, 2018Observed: 6.98 ft at 1:00AM Jun 24, 2018Observed: 6.96 ft at 1:15AM Jun 24, 2018Observed: 6.95 ft at 1:30AM Jun 24, 2018Observed: 6.92 ft at 1:45AM Jun 24, 2018Observed: 6.92 ft at 2:00AM Jun 24, 2018Observed: 6.89 ft at 2:15AM Jun 24, 2018Observed: 6.89 ft at 2:30AM Jun 24, 2018Observed: 6.87 ft at 2:45AM Jun 24, 2018Observed: 6.85 ft at 3:00AM Jun 24, 2018Observed: 6.84 ft at 3:15AM Jun 24, 2018Observed: 6.82 ft at 3:30AM Jun 24, 2018Observed: 6.8 ft at 3:45AM Jun 24, 2018Observed: 6.8 ft at 4:00AM Jun 24, 2018Observed: 6.79 ft at 4:15AM Jun 24, 2018Observed: 6.77 ft at 4:30AM Jun 24, 2018Observed: 6.76 ft at 4:45AM Jun 24, 2018Observed: 6.76 ft at 5:00AM Jun 24, 2018Observed: 6.73 ft at 5:15AM Jun 24, 2018Observed: 6.72 ft at 5:30AM Jun 24, 2018Observed: 6.7 ft at 5:45AM Jun 24, 2018Observed: 6.69 ft at 6:00AM Jun 24, 2018Observed: 6.68 ft at 6:15AM Jun 24, 2018Observed: 6.67 ft at 6:30AM Jun 24, 2018Observed: 6.66 ft at 6:45AM Jun 24, 2018Observed: 6.65 ft at 7:00AM Jun 24, 2018Observed: 6.64 ft at 7:15AM Jun 24, 2018Observed: 6.63 ft at 7:30AM Jun 24, 2018Observed: 6.62 ft at 7:45AM Jun 24, 2018Observed: 6.62 ft at 8:00AM Jun 24, 2018Observed: 6.6 ft at 8:15AM Jun 24, 2018Observed: 6.6 ft at 8:30AM Jun 24, 2018Observed: 6.59 ft at 8:45AM Jun 24, 2018Observed: 6.58 ft at 9:00AM Jun 24, 2018Observed: 6.57 ft at 9:15AM Jun 24, 2018Observed: 6.56 ft at 9:30AM Jun 24, 2018Observed: 6.55 ft at 9:45AM Jun 24, 2018Observed: 6.53 ft at 10:00AM Jun 24, 2018Observed: 6.53 ft at 10:15AM Jun 24, 2018Observed: 6.52 ft at 10:30AM Jun 24, 2018Observed: 6.52 ft at 10:45AM Jun 24, 2018Observed: 6.51 ft at 11:00AM Jun 24, 2018Observed: 6.5 ft at 11:15AM Jun 24, 2018Observed: 6.49 ft at 11:30AM Jun 24, 2018Observed: 6.49 ft at 11:45AM Jun 24, 2018Observed: 6.47 ft at 12:00PM Jun 24, 2018Observed: 6.47 ft at 12:15PM Jun 24, 2018Observed: 6.46 ft at 12:30PM Jun 24, 2018Observed: 6.45 ft at 12:45PM Jun 24, 2018Observed: 6.45 ft at 1:00PM Jun 24, 2018Observed: 6.43 ft at 1:15PM Jun 24, 2018Observed: 6.42 ft at 1:30PM Jun 24, 2018Observed: 6.42 ft at 1:45PM Jun 24, 2018Observed: 6.41 ft at 2:00PM Jun 24, 2018Observed: 6.4 ft at 2:15PM Jun 24, 2018Observed: 6.4 ft at 2:30PM Jun 24, 2018Observed: 6.38 ft at 2:45PM Jun 24, 2018Observed: 6.37 ft at 3:00PM Jun 24, 2018Observed: 6.37 ft at 3:15PM Jun 24, 2018Observed: 6.37 ft at 3:30PM Jun 24, 2018Observed: 6.36 ft at 3:45PM Jun 24, 2018Observed: 6.36 ft at 4:00PM Jun 24, 2018Forecast: 6.3 ft 8:00PM Jun 24, 2018Forecast: 6.3 ft 2:00AM Jun 25, 2018Highest Forecast: 6.4 ft 8:00AM Jun 25, 2018Forecast: 6.2 ft 2:00PM Jun 25, 2018Forecast: 6 ft 8:00PM Jun 25, 2018Forecast: 5.8 ft 2:00AM Jun 26, 2018Forecast: 5.7 ft 8:00AM Jun 26, 2018Forecast: 5.5 ft 2:00PM Jun 26, 2018Forecast: 5.4 ft 8:00PM Jun 26, 2018Forecast: 5.4 ft 2:00AM Jun 27, 2018Forecast: 5.3 ft 8:00AM Jun 27, 2018Forecast: 5.4 ft 2:00PM Jun 27, 2018USGS--Water Resources of the United StatesPETW2(plotting HGIRG) Graph Created (4:25PM Jun 24, 2018)ObservedForecast (issued 2:37PM Jun 24)Latest observed value: 6.36 ft at 4:00 PM EDT 24-Jun-2018. Flood Stage is 14 ft
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Tabular Data (UTC)
Tabular Data (EDT)
XML Data
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Datum: Not Available
Metadata
NOTE: Forecasts for the South Branch Potomac River near Petersburg are issued routinely year-round.
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Upstream Gauge - at Franklin Upstream Gauge Downstream Gauge Downstream Gauge - near Springfield
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 15
Flood Stage: 14
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 22.83 ft on 06/17/1949
(2) 22.20 ft on 09/06/1996
(3) 21.80 ft on 11/05/1985
(4) 21.20 ft on 11/24/1877
(5) 20.30 ft on 03/17/1936
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.38 ft on 05/16/2014
(2) 11.80 ft on 05/18/2011
(3) 12.32 ft on 04/17/2011
(4) 13.54 ft on 04/13/2011
(5) 11.66 ft on 03/11/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.40 ft on 08/20/1988

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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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
22.5 Significant flooding is occurring. More than a hundred buildings in Petersburg are flooded.
20 Several city blocks on the south side of Petersburg are flooded. Backwater may also flood portions of the eastern sections of the city.
18 Water covers the entire runway at Grant County Airport and is in nearby structures. Hundreds of acres of lowlands are flooded. Water approaches homes on the north side of the river in Petersburg.
17 Water reaches structures at the Grant County Airport. Flooding also begins south of the river on the south side of Petersburg.
15 Two structures are flooded upstream of Petersburg. Water also approaches the runway at the Petersburg Airport.
14 Water approaches structures upstream of Petersburg. Water also begins to cover Fish Hatchery Road near the river.
12 Water overflows the natural banks into nearby lowlands. River Road alongside the river begins to flood in its lowest spots.
About This Location Collapse

Latitude: 38.991111° N, Longitude: 79.176111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 14 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 968.34 ft 981.34 ft 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
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.
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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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