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ALERT: November 15 update on the status of the nationwide data transmission error preventing stream gauge data collected at affected locations from being displayed on the Advanced Hydrologic Prediction Services (AHPS) webpages. As of 11/08/2018, The USGS has restored all impacted operational stream gauges to transmitting status. The status map of gauge outages from other agencies is here. The outage map will be updated each Thursday. We apologize for the service interruption and hope to have the data restored as soon as possible.



Hydrograph River at a Glance Download
South Branch Potomac River near Petersburg Stage (ft)Flow (kcfs)Observed: 6.17 ft at 9:45PM Nov 11, 2018Observed: 6.17 ft at 10:00PM Nov 11, 2018Observed: 6.17 ft at 10:15PM Nov 11, 2018Observed: 6.15 ft at 10:30PM Nov 11, 2018Observed: 6.16 ft at 10:45PM Nov 11, 2018Observed: 6.16 ft at 11:00PM Nov 11, 2018Observed: 6.15 ft at 11:15PM Nov 11, 2018Observed: 6.15 ft at 11:30PM Nov 11, 2018Observed: 6.15 ft at 11:45PM Nov 11, 2018Observed: 6.13 ft at 12:00AM Nov 12, 2018Observed: 6.14 ft at 12:15AM Nov 12, 2018Observed: 6.14 ft at 12:30AM Nov 12, 2018Observed: 6.12 ft at 12:45AM Nov 12, 2018Observed: 6.12 ft at 1:00AM Nov 12, 2018Observed: 6.13 ft at 1:15AM Nov 12, 2018Observed: 6.12 ft at 1:30AM Nov 12, 2018Observed: 6.11 ft at 1:45AM Nov 12, 2018Observed: 6.11 ft at 2:00AM Nov 12, 2018Observed: 6.11 ft at 2:15AM Nov 12, 2018Observed: 6.1 ft at 2:30AM Nov 12, 2018Observed: 6.1 ft at 2:45AM Nov 12, 2018Observed: 6.1 ft at 3:00AM Nov 12, 2018Observed: 6.09 ft at 3:15AM Nov 12, 2018Observed: 6.09 ft at 3:30AM Nov 12, 2018Observed: 6.09 ft at 3:45AM Nov 12, 2018Observed: 6.08 ft at 4:00AM Nov 12, 2018Observed: 6.08 ft at 4:15AM Nov 12, 2018Observed: 6.08 ft at 4:30AM Nov 12, 2018Observed: 6.07 ft at 4:45AM Nov 12, 2018Observed: 6.07 ft at 5:00AM Nov 12, 2018Observed: 6.07 ft at 5:15AM Nov 12, 2018Observed: 6.05 ft at 5:30AM Nov 12, 2018Observed: 6.06 ft at 5:45AM Nov 12, 2018Observed: 6.04 ft at 6:00AM Nov 12, 2018Observed: 6.04 ft at 6:15AM Nov 12, 2018Observed: 6.05 ft at 6:30AM Nov 12, 2018Observed: 6.04 ft at 6:45AM Nov 12, 2018Observed: 6.03 ft at 7:00AM Nov 12, 2018Observed: 6 ft at 7:15AM Nov 12, 2018Observed: 6.03 ft at 7:30AM Nov 12, 2018Observed: 6.02 ft at 7:45AM Nov 12, 2018Observed: 6.02 ft at 8:00AM Nov 12, 2018Observed: 5.98 ft at 8:15AM Nov 12, 2018Observed: 6.02 ft at 8:30AM Nov 12, 2018Observed: 5.99 ft at 8:45AM Nov 12, 2018Observed: 5.99 ft at 9:00AM Nov 12, 2018Observed: 5.98 ft at 9:15AM Nov 12, 2018Observed: 5.96 ft at 9:30AM Nov 12, 2018Observed: 5.96 ft at 9:45AM Nov 12, 2018Observed: 5.97 ft at 10:00AM Nov 12, 2018Observed: 5.98 ft at 10:15AM Nov 12, 2018Observed: 5.99 ft at 10:30AM Nov 12, 2018Observed: 5.95 ft at 10:45AM Nov 12, 2018Observed: 5.97 ft at 11:00AM Nov 12, 2018Observed: 5.95 ft at 11:15AM Nov 12, 2018Observed: 5.95 ft at 11:30AM Nov 12, 2018Observed: 5.95 ft at 11:45AM Nov 12, 2018Observed: 5.94 ft at 12:00PM Nov 12, 2018Observed: 5.94 ft at 12:15PM Nov 12, 2018Observed: 5.94 ft at 12:30PM Nov 12, 2018Observed: 5.93 ft at 12:45PM Nov 12, 2018Observed: 5.95 ft at 1:00PM Nov 12, 2018Observed: 5.92 ft at 1:15PM Nov 12, 2018Observed: 5.93 ft at 1:30PM Nov 12, 2018Observed: 5.94 ft at 1:45PM Nov 12, 2018Observed: 5.91 ft at 2:00PM Nov 12, 2018Observed: 5.92 ft at 2:15PM Nov 12, 2018Observed: 5.91 ft at 2:30PM Nov 12, 2018Observed: 5.91 ft at 2:45PM Nov 12, 2018Observed: 5.9 ft at 3:00PM Nov 12, 2018Observed: 5.9 ft at 3:15PM Nov 12, 2018Observed: 5.9 ft at 3:30PM Nov 12, 2018Observed: 5.91 ft at 3:45PM Nov 12, 2018Observed: 5.91 ft at 4:00PM Nov 12, 2018Observed: 5.89 ft at 4:15PM Nov 12, 2018Observed: 5.87 ft at 4:30PM Nov 12, 2018Observed: 5.9 ft at 4:45PM Nov 12, 2018Observed: 5.86 ft at 5:00PM Nov 12, 2018Observed: 5.88 ft at 5:15PM Nov 12, 2018Observed: 5.89 ft at 5:30PM Nov 12, 2018Observed: 5.88 ft at 5:45PM Nov 12, 2018Observed: 5.86 ft at 6:00PM Nov 12, 2018Observed: 5.89 ft at 6:15PM Nov 12, 2018Observed: 5.84 ft at 6:30PM Nov 12, 2018Observed: 5.87 ft at 6:45PM Nov 12, 2018Observed: 5.86 ft at 7:00PM Nov 12, 2018Observed: 5.87 ft at 7:15PM Nov 12, 2018Observed: 5.86 ft at 7:30PM Nov 12, 2018Observed: 5.86 ft at 7:45PM Nov 12, 2018Observed: 5.87 ft at 8:00PM Nov 12, 2018Observed: 5.83 ft at 8:15PM Nov 12, 2018Observed: 5.84 ft at 8:30PM Nov 12, 2018Observed: 5.86 ft at 8:45PM Nov 12, 2018Observed: 5.84 ft at 9:00PM Nov 12, 2018Observed: 5.86 ft at 9:15PM Nov 12, 2018Observed: 5.85 ft at 9:30PM Nov 12, 2018Observed: 5.87 ft at 9:45PM Nov 12, 2018Observed: 5.87 ft at 10:00PM Nov 12, 2018Observed: 5.84 ft at 10:15PM Nov 12, 2018Observed: 5.87 ft at 10:30PM Nov 12, 2018Observed: 5.85 ft at 10:45PM Nov 12, 2018Observed: 5.82 ft at 11:00PM Nov 12, 2018Observed: 5.83 ft at 11:15PM Nov 12, 2018Observed: 5.84 ft at 11:30PM Nov 12, 2018Observed: 5.88 ft at 11:45PM Nov 12, 2018Observed: 5.83 ft at 12:00AM Nov 13, 2018Observed: 5.85 ft at 12:15AM Nov 13, 2018Observed: 5.88 ft at 12:30AM Nov 13, 2018Observed: 5.85 ft at 12:45AM Nov 13, 2018Observed: 5.85 ft at 1:00AM Nov 13, 2018Observed: 5.87 ft at 1:15AM Nov 13, 2018Observed: 5.85 ft at 1:30AM Nov 13, 2018Observed: 5.87 ft at 1:45AM Nov 13, 2018Observed: 5.87 ft at 2:00AM Nov 13, 2018Observed: 5.88 ft at 2:15AM Nov 13, 2018Observed: 5.86 ft at 2:30AM Nov 13, 2018Observed: 5.9 ft at 2:45AM Nov 13, 2018Observed: 5.85 ft at 3:00AM Nov 13, 2018Observed: 5.9 ft at 3:15AM Nov 13, 2018Observed: 5.91 ft at 3:30AM Nov 13, 2018Observed: 5.9 ft at 3:45AM Nov 13, 2018Observed: 5.89 ft at 4:00AM Nov 13, 2018Observed: 5.89 ft at 4:15AM Nov 13, 2018Observed: 5.91 ft at 4:30AM Nov 13, 2018Observed: 5.91 ft at 4:45AM Nov 13, 2018Observed: 5.88 ft at 5:00AM Nov 13, 2018Observed: 5.92 ft at 5:15AM Nov 13, 2018Observed: 5.91 ft at 5:30AM Nov 13, 2018Observed: 5.93 ft at 5:45AM Nov 13, 2018Observed: 5.91 ft at 6:00AM Nov 13, 2018Observed: 5.94 ft at 6:15AM Nov 13, 2018Observed: 5.96 ft at 6:30AM Nov 13, 2018Observed: 5.95 ft at 6:45AM Nov 13, 2018Observed: 5.96 ft at 7:00AM Nov 13, 2018Observed: 5.98 ft at 7:15AM Nov 13, 2018Observed: 5.99 ft at 7:30AM Nov 13, 2018Observed: 5.95 ft at 7:45AM Nov 13, 2018Observed: 6.01 ft at 8:00AM Nov 13, 2018Observed: 6.03 ft at 8:15AM Nov 13, 2018Observed: 6.04 ft at 8:30AM Nov 13, 2018Observed: 6.05 ft at 8:45AM Nov 13, 2018Observed: 6.04 ft at 9:00AM Nov 13, 2018Observed: 6.07 ft at 9:15AM Nov 13, 2018Observed: 6.09 ft at 9:30AM Nov 13, 2018Observed: 6.1 ft at 9:45AM Nov 13, 2018Observed: 6.12 ft at 10:00AM Nov 13, 2018Observed: 6.12 ft at 10:15AM Nov 13, 2018Observed: 6.14 ft at 10:30AM Nov 13, 2018Observed: 6.15 ft at 10:45AM Nov 13, 2018Observed: 6.15 ft at 11:00AM Nov 13, 2018Observed: 6.16 ft at 11:15AM Nov 13, 2018Observed: 6.17 ft at 11:30AM Nov 13, 2018Observed: 6.18 ft at 11:45AM Nov 13, 2018Observed: 6.18 ft at 12:00PM Nov 13, 2018Observed: 6.2 ft at 12:15PM Nov 13, 2018Observed: 6.22 ft at 12:30PM Nov 13, 2018Observed: 6.23 ft at 12:45PM Nov 13, 2018Observed: 6.25 ft at 1:00PM Nov 13, 2018Observed: 6.27 ft at 1:15PM Nov 13, 2018Observed: 6.3 ft at 1:30PM Nov 13, 2018Observed: 6.32 ft at 1:45PM Nov 13, 2018Observed: 6.35 ft at 2:00PM Nov 13, 2018Observed: 6.37 ft at 2:15PM Nov 13, 2018Observed: 6.39 ft at 2:30PM Nov 13, 2018Observed: 6.4 ft at 2:45PM Nov 13, 2018Observed: 6.42 ft at 3:00PM Nov 13, 2018Observed: 6.43 ft at 3:15PM Nov 13, 2018Observed: 6.44 ft at 3:30PM Nov 13, 2018Observed: 6.44 ft at 3:45PM Nov 13, 2018Highest Observation: 6.45 ft at 4:00PM Nov 13, 2018Observed: 6.43 ft at 4:15PM Nov 13, 2018Highest Observation: 6.45 ft at 4:30PM Nov 13, 2018Observed: 6.43 ft at 4:45PM Nov 13, 2018Observed: 6.43 ft at 5:00PM Nov 13, 2018Observed: 6.43 ft at 5:15PM Nov 13, 2018Observed: 6.42 ft at 5:30PM Nov 13, 2018Observed: 6.43 ft at 5:45PM Nov 13, 2018Observed: 6.42 ft at 6:00PM Nov 13, 2018Observed: 6.41 ft at 6:15PM Nov 13, 2018Observed: 6.4 ft at 6:30PM Nov 13, 2018Observed: 6.39 ft at 6:45PM Nov 13, 2018Observed: 6.38 ft at 7:00PM Nov 13, 2018Observed: 6.38 ft at 7:15PM Nov 13, 2018Observed: 6.37 ft at 7:30PM Nov 13, 2018Observed: 6.37 ft at 7:45PM Nov 13, 2018Observed: 6.35 ft at 8:00PM Nov 13, 2018Observed: 6.35 ft at 8:15PM Nov 13, 2018Observed: 6.34 ft at 8:30PM Nov 13, 2018Observed: 6.33 ft at 8:45PM Nov 13, 2018Observed: 6.33 ft at 9:00PM Nov 13, 2018Observed: 6.32 ft at 9:15PM Nov 13, 2018Observed: 6.31 ft at 9:30PM Nov 13, 2018Observed: 6.31 ft at 9:45PM Nov 13, 2018Observed: 6.31 ft at 10:00PM Nov 13, 2018Observed: 6.3 ft at 10:15PM Nov 13, 2018Observed: 6.29 ft at 10:30PM Nov 13, 2018Observed: 6.29 ft at 10:45PM Nov 13, 2018Observed: 6.28 ft at 11:00PM Nov 13, 2018Observed: 6.28 ft at 11:15PM Nov 13, 2018Observed: 6.27 ft at 11:30PM Nov 13, 2018Observed: 6.26 ft at 11:45PM Nov 13, 2018Observed: 6.26 ft at 12:00AM Nov 14, 2018Observed: 6.25 ft at 12:15AM Nov 14, 2018Observed: 6.25 ft at 12:30AM Nov 14, 2018Observed: 6.26 ft at 12:45AM Nov 14, 2018Observed: 6.24 ft at 1:00AM Nov 14, 2018Observed: 6.24 ft at 1:15AM Nov 14, 2018Observed: 6.24 ft at 1:30AM Nov 14, 2018Observed: 6.23 ft at 1:45AM Nov 14, 2018Observed: 6.23 ft at 2:00AM Nov 14, 2018Observed: 6.21 ft at 2:15AM Nov 14, 2018Observed: 6.21 ft at 2:30AM Nov 14, 2018Observed: 6.21 ft at 2:45AM Nov 14, 2018Observed: 6.21 ft at 3:00AM Nov 14, 2018Observed: 6.2 ft at 3:15AM Nov 14, 2018Observed: 6.2 ft at 3:30AM Nov 14, 2018Observed: 6.19 ft at 3:45AM Nov 14, 2018Observed: 6.19 ft at 4:00AM Nov 14, 2018Observed: 6.18 ft at 4:15AM Nov 14, 2018Observed: 6.18 ft at 4:30AM Nov 14, 2018Observed: 6.18 ft at 4:45AM Nov 14, 2018Observed: 6.18 ft at 5:00AM Nov 14, 2018Observed: 6.17 ft at 5:15AM Nov 14, 2018Observed: 6.17 ft at 5:30AM Nov 14, 2018Observed: 6.17 ft at 5:45AM Nov 14, 2018Observed: 6.16 ft at 6:00AM Nov 14, 2018Observed: 6.16 ft at 6:15AM Nov 14, 2018Observed: 6.16 ft at 6:30AM Nov 14, 2018Observed: 6.15 ft at 6:45AM Nov 14, 2018Observed: 6.15 ft at 7:00AM Nov 14, 2018Observed: 6.14 ft at 7:15AM Nov 14, 2018Observed: 6.14 ft at 7:30AM Nov 14, 2018Observed: 6.14 ft at 7:45AM Nov 14, 2018Observed: 6.14 ft at 8:00AM Nov 14, 2018Observed: 6.13 ft at 8:15AM Nov 14, 2018Observed: 6.14 ft at 8:30AM Nov 14, 2018Observed: 6.13 ft at 8:45AM Nov 14, 2018Observed: 6.13 ft at 9:00AM Nov 14, 2018Observed: 6.13 ft at 9:15AM Nov 14, 2018Observed: 6.12 ft at 9:30AM Nov 14, 2018Observed: 6.12 ft at 9:45AM Nov 14, 2018Observed: 6.12 ft at 10:00AM Nov 14, 2018Observed: 6.11 ft at 10:15AM Nov 14, 2018Observed: 6.12 ft at 10:30AM Nov 14, 2018Observed: 6.11 ft at 10:45AM Nov 14, 2018Observed: 6.1 ft at 11:00AM Nov 14, 2018Observed: 6.11 ft at 11:15AM Nov 14, 2018Observed: 6.11 ft at 11:30AM Nov 14, 2018Observed: 6.09 ft at 11:45AM Nov 14, 2018Observed: 6.1 ft at 12:00PM Nov 14, 2018Observed: 6.09 ft at 12:15PM Nov 14, 2018Observed: 6.09 ft at 12:30PM Nov 14, 2018Observed: 6.09 ft at 12:45PM Nov 14, 2018Observed: 6.09 ft at 1:00PM Nov 14, 2018Observed: 6.08 ft at 1:15PM Nov 14, 2018Observed: 6.08 ft at 1:30PM Nov 14, 2018Observed: 6.08 ft at 1:45PM Nov 14, 2018Observed: 6.07 ft at 2:00PM Nov 14, 2018Observed: 6.07 ft at 2:15PM Nov 14, 2018Observed: 6.07 ft at 2:30PM Nov 14, 2018Observed: 6.05 ft at 2:45PM Nov 14, 2018Observed: 6.06 ft at 3:00PM Nov 14, 2018Observed: 6.05 ft at 3:15PM Nov 14, 2018Observed: 6.05 ft at 3:30PM Nov 14, 2018Observed: 6.05 ft at 3:45PM Nov 14, 2018Observed: 6.03 ft at 4:00PM Nov 14, 2018Observed: 6.05 ft at 4:15PM Nov 14, 2018Observed: 6.04 ft at 4:30PM Nov 14, 2018Observed: 6.03 ft at 4:45PM Nov 14, 2018Observed: 6.04 ft at 5:00PM Nov 14, 2018Observed: 6.01 ft at 5:15PM Nov 14, 2018Observed: 6.04 ft at 5:30PM Nov 14, 2018Observed: 6.02 ft at 5:45PM Nov 14, 2018Observed: 6.01 ft at 6:00PM Nov 14, 2018Observed: 6 ft at 6:15PM Nov 14, 2018Observed: 6.01 ft at 6:30PM Nov 14, 2018Observed: 6.01 ft at 6:45PM Nov 14, 2018Observed: 5.97 ft at 7:00PM Nov 14, 2018Observed: 5.97 ft at 7:15PM Nov 14, 2018Observed: 5.94 ft at 7:30PM Nov 14, 2018Observed: 5.99 ft at 7:45PM Nov 14, 2018Observed: 5.98 ft at 8:00PM Nov 14, 2018Observed: 5.99 ft at 8:15PM Nov 14, 2018Observed: 5.98 ft at 8:30PM Nov 14, 2018Observed: 5.98 ft at 8:45PM Nov 14, 2018Observed: 5.98 ft at 9:00PM Nov 14, 2018Observed: 5.97 ft at 9:15PM Nov 14, 2018Observed: 5.93 ft at 9:30PM Nov 14, 2018Observed: 5.95 ft at 9:45PM Nov 14, 2018Observed: 5.96 ft at 10:00PM Nov 14, 2018Observed: 5.96 ft at 10:15PM Nov 14, 2018Observed: 5.95 ft at 10:30PM Nov 14, 2018Observed: 5.93 ft at 10:45PM Nov 14, 2018Observed: 5.98 ft at 11:00PM Nov 14, 2018Observed: 5.94 ft at 11:15PM Nov 14, 2018Observed: 5.93 ft at 11:30PM Nov 14, 2018Observed: 5.94 ft at 11:45PM Nov 14, 2018Observed: 5.95 ft at 12:00AM Nov 15, 2018Observed: 5.96 ft at 12:15AM Nov 15, 2018Observed: 5.94 ft at 12:30AM Nov 15, 2018Observed: 5.95 ft at 12:45AM Nov 15, 2018Observed: 5.95 ft at 1:00AM Nov 15, 2018Observed: 5.95 ft at 1:15AM Nov 15, 2018Observed: 5.92 ft at 1:30AM Nov 15, 2018Observed: 5.92 ft at 1:45AM Nov 15, 2018Observed: 5.89 ft at 2:00AM Nov 15, 2018Observed: 5.9 ft at 2:15AM Nov 15, 2018Observed: 5.89 ft at 2:30AM Nov 15, 2018Observed: 5.93 ft at 2:45AM Nov 15, 2018Observed: 5.93 ft at 3:00AM Nov 15, 2018Observed: 5.94 ft at 3:15AM Nov 15, 2018Observed: 5.92 ft at 3:30AM Nov 15, 2018Observed: 5.9 ft at 3:45AM Nov 15, 2018Observed: 5.92 ft at 4:00AM Nov 15, 2018Observed: 5.9 ft at 4:15AM Nov 15, 2018Observed: 5.92 ft at 4:30AM Nov 15, 2018Observed: 5.89 ft at 4:45AM Nov 15, 2018Observed: 5.87 ft at 5:00AM Nov 15, 2018Observed: 5.93 ft at 5:15AM Nov 15, 2018Observed: 5.91 ft at 5:30AM Nov 15, 2018Observed: 5.91 ft at 5:45AM Nov 15, 2018Observed: 5.91 ft at 6:00AM Nov 15, 2018Observed: 5.91 ft at 6:15AM Nov 15, 2018Observed: 5.91 ft at 6:30AM Nov 15, 2018Observed: 5.91 ft at 6:45AM Nov 15, 2018Observed: 5.91 ft at 7:00AM Nov 15, 2018Observed: 5.93 ft at 7:15AM Nov 15, 2018Observed: 5.91 ft at 7:30AM Nov 15, 2018Observed: 5.9 ft at 7:45AM Nov 15, 2018Observed: 5.91 ft at 8:00AM Nov 15, 2018Observed: 5.9 ft at 8:15AM Nov 15, 2018Observed: 5.91 ft at 8:30AM Nov 15, 2018Observed: 5.92 ft at 8:45AM Nov 15, 2018Observed: 5.94 ft at 9:00AM Nov 15, 2018Observed: 5.95 ft at 9:15AM Nov 15, 2018Observed: 5.94 ft at 9:30AM Nov 15, 2018Observed: 5.93 ft at 9:45AM Nov 15, 2018Observed: 5.95 ft at 10:00AM Nov 15, 2018Observed: 5.97 ft at 10:15AM Nov 15, 2018Observed: 5.96 ft at 10:30AM Nov 15, 2018Observed: 5.97 ft at 10:45AM Nov 15, 2018Observed: 5.99 ft at 11:00AM Nov 15, 2018Observed: 5.99 ft at 11:15AM Nov 15, 2018Observed: 6 ft at 11:30AM Nov 15, 2018Observed: 6 ft at 11:45AM Nov 15, 2018Observed: 6 ft at 12:00PM Nov 15, 2018Observed: 5.99 ft at 12:15PM Nov 15, 2018Observed: 5.97 ft at 12:30PM Nov 15, 2018Observed: 6.02 ft at 12:45PM Nov 15, 2018Observed: 6.04 ft at 1:00PM Nov 15, 2018Observed: 6.01 ft at 1:15PM Nov 15, 2018Observed: 6.04 ft at 1:30PM Nov 15, 2018Observed: 6.04 ft at 1:45PM Nov 15, 2018Observed: 6.04 ft at 2:00PM Nov 15, 2018Observed: 6.06 ft at 2:15PM Nov 15, 2018Observed: 6.05 ft at 2:30PM Nov 15, 2018Observed: 6.06 ft at 2:45PM Nov 15, 2018Observed: 6.06 ft at 3:00PM Nov 15, 2018Observed: 6.05 ft at 3:15PM Nov 15, 2018Observed: 6.09 ft at 3:30PM Nov 15, 2018Observed: 6.09 ft at 3:45PM Nov 15, 2018Observed: 6.09 ft at 4:00PM Nov 15, 2018Observed: 6.09 ft at 4:15PM Nov 15, 2018Observed: 6.1 ft at 4:30PM Nov 15, 2018Observed: 6.1 ft at 4:45PM Nov 15, 2018Observed: 6.11 ft at 5:00PM Nov 15, 2018Observed: 6.11 ft at 5:15PM Nov 15, 2018Observed: 6.12 ft at 5:30PM Nov 15, 2018Observed: 6.12 ft at 5:45PM Nov 15, 2018Observed: 6.12 ft at 6:00PM Nov 15, 2018Observed: 6.13 ft at 6:15PM Nov 15, 2018Observed: 6.12 ft at 6:30PM Nov 15, 2018Observed: 6.12 ft at 6:45PM Nov 15, 2018Observed: 6.13 ft at 7:00PM Nov 15, 2018Observed: 6.12 ft at 7:15PM Nov 15, 2018Observed: 6.13 ft at 7:30PM Nov 15, 2018Observed: 6.11 ft at 7:45PM Nov 15, 2018Observed: 6.12 ft at 8:00PM Nov 15, 2018Observed: 6.12 ft at 8:15PM Nov 15, 2018Observed: 6.12 ft at 8:30PM Nov 15, 2018Observed: 6.12 ft at 8:45PM Nov 15, 2018Observed: 6.11 ft at 9:00PM Nov 15, 2018Observed: 6.12 ft at 9:15PM Nov 15, 2018Observed: 6.12 ft at 9:30PM Nov 15, 2018Observed: 6.11 ft at 9:45PM Nov 15, 2018Observed: 6.12 ft at 10:00PM Nov 15, 2018Observed: 6.12 ft at 10:15PM Nov 15, 2018Observed: 6.12 ft at 10:30PM Nov 15, 2018Observed: 6.11 ft at 10:45PM Nov 15, 2018Observed: 6.11 ft at 11:00PM Nov 15, 2018Observed: 6.1 ft at 11:15PM Nov 15, 2018Observed: 6.12 ft at 11:30PM Nov 15, 2018Observed: 6.11 ft at 11:45PM Nov 15, 2018Observed: 6.11 ft at 12:00AM Nov 16, 2018Observed: 6.11 ft at 12:15AM Nov 16, 2018Observed: 6.11 ft at 12:30AM Nov 16, 2018Observed: 6.1 ft at 12:45AM Nov 16, 2018Observed: 6.1 ft at 1:00AM Nov 16, 2018Observed: 6.07 ft at 1:15AM Nov 16, 2018Observed: 6.09 ft at 1:30AM Nov 16, 2018Observed: 6.08 ft at 1:45AM Nov 16, 2018Observed: 6.08 ft at 2:00AM Nov 16, 2018Observed: 6.07 ft at 2:15AM Nov 16, 2018Observed: 6.08 ft at 2:30AM Nov 16, 2018Observed: 6.07 ft at 2:45AM Nov 16, 2018Observed: 6.07 ft at 3:00AM Nov 16, 2018Observed: 6.03 ft at 3:15AM Nov 16, 2018Observed: 6 ft at 3:30AM Nov 16, 2018Observed: 6.02 ft at 3:45AM Nov 16, 2018Observed: 5.99 ft at 4:00AM Nov 16, 2018Observed: 6 ft at 4:15AM Nov 16, 2018Observed: 5.99 ft at 4:30AM Nov 16, 2018Observed: 5.99 ft at 4:45AM Nov 16, 2018Observed: 5.95 ft at 5:00AM Nov 16, 2018Observed: 5.99 ft at 5:15AM Nov 16, 2018Observed: 6.04 ft at 5:30AM Nov 16, 2018Observed: 5.97 ft at 5:45AM Nov 16, 2018Observed: 5.99 ft at 6:00AM Nov 16, 2018Observed: 5.98 ft at 6:15AM Nov 16, 2018Observed: 6 ft at 6:30AM Nov 16, 2018Observed: 5.97 ft at 6:45AM Nov 16, 2018Observed: 5.99 ft at 7:00AM Nov 16, 2018Observed: 5.93 ft at 7:15AM Nov 16, 2018Observed: 5.96 ft at 7:30AM Nov 16, 2018Observed: 5.98 ft at 7:45AM Nov 16, 2018Observed: 5.96 ft at 8:00AM Nov 16, 2018Observed: 5.89 ft at 8:15AM Nov 16, 2018Observed: 5.97 ft at 8:30AM Nov 16, 2018Observed: 5.96 ft at 8:45AM Nov 16, 2018Observed: 5.94 ft at 9:00AM Nov 16, 2018Observed: 5.92 ft at 9:15AM Nov 16, 2018Observed: 5.93 ft at 9:30AM Nov 16, 2018Observed: 5.86 ft at 9:45AM Nov 16, 2018Observed: 5.89 ft at 10:00AM Nov 16, 2018Observed: 5.87 ft at 10:15AM Nov 16, 2018Observed: 5.88 ft at 10:30AM Nov 16, 2018Observed: 5.86 ft at 10:45AM Nov 16, 2018Observed: 5.88 ft at 11:00AM Nov 16, 2018Observed: 5.9 ft at 11:15AM Nov 16, 2018Observed: 5.91 ft at 11:30AM Nov 16, 2018Observed: 5.92 ft at 11:45AM Nov 16, 2018Observed: 5.86 ft at 12:00PM Nov 16, 2018Observed: 5.86 ft at 12:15PM Nov 16, 2018Observed: 5.89 ft at 12:30PM Nov 16, 2018Observed: 5.87 ft at 12:45PM Nov 16, 2018Observed: 5.91 ft at 1:00PM Nov 16, 2018Observed: 5.89 ft at 1:15PM Nov 16, 2018Observed: 5.92 ft at 1:30PM Nov 16, 2018Observed: 5.9 ft at 1:45PM Nov 16, 2018Observed: 5.89 ft at 2:00PM Nov 16, 2018Observed: 5.89 ft at 2:15PM Nov 16, 2018Observed: 5.91 ft at 2:30PM Nov 16, 2018Observed: 5.85 ft at 2:45PM Nov 16, 2018Observed: 5.91 ft at 3:00PM Nov 16, 2018Observed: 5.89 ft at 3:15PM Nov 16, 2018Observed: 5.91 ft at 3:30PM Nov 16, 2018Observed: 5.87 ft at 3:45PM Nov 16, 2018Observed: 5.89 ft at 4:00PM Nov 16, 2018Observed: 5.88 ft at 4:15PM Nov 16, 2018Observed: 5.82 ft at 4:30PM Nov 16, 2018Observed: 5.85 ft at 4:45PM Nov 16, 2018Observed: 5.87 ft at 5:00PM Nov 16, 2018Observed: 5.82 ft at 5:15PM Nov 16, 2018Observed: 5.88 ft at 5:30PM Nov 16, 2018Observed: 5.86 ft at 5:45PM Nov 16, 2018Observed: 5.81 ft at 6:00PM Nov 16, 2018Observed: 5.85 ft at 6:15PM Nov 16, 2018Observed: 5.85 ft at 6:30PM Nov 16, 2018Observed: 5.86 ft at 6:45PM Nov 16, 2018Observed: 5.85 ft at 7:00PM Nov 16, 2018Observed: 5.86 ft at 7:15PM Nov 16, 2018Observed: 5.8 ft at 7:30PM Nov 16, 2018Observed: 5.82 ft at 7:45PM Nov 16, 2018Observed: 5.79 ft at 8:00PM Nov 16, 2018Observed: 5.81 ft at 8:15PM Nov 16, 2018Observed: 5.81 ft at 8:30PM Nov 16, 2018Observed: 5.83 ft at 8:45PM Nov 16, 2018Observed: 5.82 ft at 9:00PM Nov 16, 2018Forecast: 5.8 ft 1:00AM Nov 17, 2018Forecast: 5.8 ft 7:00AM Nov 17, 2018Forecast: 5.8 ft 1:00PM Nov 17, 2018Forecast: 5.8 ft 7:00PM Nov 17, 2018Forecast: 5.9 ft 1:00AM Nov 18, 2018Highest Forecast: 6 ft 7:00AM Nov 18, 2018Highest Forecast: 6 ft 1:00PM Nov 18, 2018Forecast: 5.9 ft 7:00PM Nov 18, 2018Highest Forecast: 6 ft 1:00AM Nov 19, 2018Highest Forecast: 6 ft 7:00AM Nov 19, 2018USGS--Water Resources of the United StatesPETW2(plotting HGIRG) Graph Created (9:38PM Nov 16, 2018)ObservedForecast (issued 9:33AM Nov 16)Latest observed value: 5.82 ft at 9:00 PM EST 16-Nov-2018. Flood Stage is 14 ft
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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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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
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.

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
(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 5:21 PM
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