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Hydrograph River at a Glance Download
South Branch Potomac River near Petersburg Stage (ft)Flow (kcfs)Observed: 3.66 ft at 8:45PM Aug 18, 2019Observed: 3.65 ft at 9:00PM Aug 18, 2019Observed: 3.65 ft at 9:15PM Aug 18, 2019Observed: 3.65 ft at 9:30PM Aug 18, 2019Observed: 3.65 ft at 9:45PM Aug 18, 2019Observed: 3.65 ft at 10:00PM Aug 18, 2019Observed: 3.65 ft at 10:15PM Aug 18, 2019Observed: 3.65 ft at 10:30PM Aug 18, 2019Observed: 3.65 ft at 10:45PM Aug 18, 2019Observed: 3.65 ft at 11:00PM Aug 18, 2019Observed: 3.64 ft at 11:15PM Aug 18, 2019Observed: 3.65 ft at 11:30PM Aug 18, 2019Observed: 3.65 ft at 11:45PM Aug 18, 2019Observed: 3.65 ft at 12:00AM Aug 19, 2019Observed: 3.65 ft at 12:15AM Aug 19, 2019Observed: 3.65 ft at 12:30AM Aug 19, 2019Observed: 3.65 ft at 12:45AM Aug 19, 2019Observed: 3.64 ft at 1:00AM Aug 19, 2019Observed: 3.65 ft at 1:15AM Aug 19, 2019Observed: 3.65 ft at 1:30AM Aug 19, 2019Observed: 3.65 ft at 1:45AM Aug 19, 2019Observed: 3.65 ft at 2:00AM Aug 19, 2019Observed: 3.64 ft at 2:15AM Aug 19, 2019Observed: 3.64 ft at 2:30AM Aug 19, 2019Observed: 3.64 ft at 2:45AM Aug 19, 2019Observed: 3.65 ft at 3:00AM Aug 19, 2019Observed: 3.65 ft at 3:15AM Aug 19, 2019Observed: 3.64 ft at 3:30AM Aug 19, 2019Observed: 3.64 ft at 3:45AM Aug 19, 2019Observed: 3.65 ft at 4:00AM Aug 19, 2019Observed: 3.65 ft at 4:15AM Aug 19, 2019Observed: 3.64 ft at 4:30AM Aug 19, 2019Observed: 3.64 ft at 4:45AM Aug 19, 2019Observed: 3.64 ft at 5:00AM Aug 19, 2019Observed: 3.64 ft at 5:15AM Aug 19, 2019Observed: 3.64 ft at 5:30AM Aug 19, 2019Observed: 3.64 ft at 5:45AM Aug 19, 2019Observed: 3.64 ft at 6:00AM Aug 19, 2019Observed: 3.64 ft at 6:15AM Aug 19, 2019Observed: 3.64 ft at 6:30AM Aug 19, 2019Observed: 3.64 ft at 6:45AM Aug 19, 2019Observed: 3.64 ft at 7:00AM Aug 19, 2019Observed: 3.64 ft at 7:15AM Aug 19, 2019Observed: 3.63 ft at 7:30AM Aug 19, 2019Observed: 3.64 ft at 7:45AM Aug 19, 2019Observed: 3.64 ft at 8:00AM Aug 19, 2019Observed: 3.63 ft at 8:15AM Aug 19, 2019Observed: 3.63 ft at 8:30AM Aug 19, 2019Observed: 3.63 ft at 8:45AM Aug 19, 2019Observed: 3.63 ft at 9:00AM Aug 19, 2019Observed: 3.63 ft at 9:15AM Aug 19, 2019Observed: 3.63 ft at 9:30AM Aug 19, 2019Observed: 3.64 ft at 9:45AM Aug 19, 2019Observed: 3.63 ft at 10:00AM Aug 19, 2019Observed: 3.63 ft at 10:15AM Aug 19, 2019Observed: 3.63 ft at 10:30AM Aug 19, 2019Observed: 3.63 ft at 10:45AM Aug 19, 2019Observed: 3.63 ft at 11:00AM Aug 19, 2019Observed: 3.63 ft at 11:15AM Aug 19, 2019Observed: 3.63 ft at 11:30AM Aug 19, 2019Observed: 3.63 ft at 11:45AM Aug 19, 2019Observed: 3.63 ft at 12:00PM Aug 19, 2019Observed: 3.63 ft at 12:15PM Aug 19, 2019Observed: 3.63 ft at 12:30PM Aug 19, 2019Observed: 3.63 ft at 12:45PM Aug 19, 2019Observed: 3.63 ft at 1:00PM Aug 19, 2019Observed: 3.64 ft at 1:15PM Aug 19, 2019Observed: 3.63 ft at 1:30PM Aug 19, 2019Observed: 3.63 ft at 1:45PM Aug 19, 2019Observed: 3.63 ft at 2:00PM Aug 19, 2019Observed: 3.63 ft at 2:15PM Aug 19, 2019Observed: 3.63 ft at 2:30PM Aug 19, 2019Observed: 3.63 ft at 2:45PM Aug 19, 2019Observed: 3.64 ft at 3:00PM Aug 19, 2019Observed: 3.64 ft at 3:15PM Aug 19, 2019Observed: 3.64 ft at 3:30PM Aug 19, 2019Observed: 3.64 ft at 3:45PM Aug 19, 2019Observed: 3.64 ft at 4:00PM Aug 19, 2019Observed: 3.64 ft at 4:15PM Aug 19, 2019Observed: 3.64 ft at 4:30PM Aug 19, 2019Observed: 3.64 ft at 4:45PM Aug 19, 2019Observed: 3.64 ft at 5:00PM Aug 19, 2019Observed: 3.64 ft at 5:15PM Aug 19, 2019Observed: 3.65 ft at 5:30PM Aug 19, 2019Observed: 3.65 ft at 5:45PM Aug 19, 2019Observed: 3.65 ft at 6:00PM Aug 19, 2019Observed: 3.65 ft at 6:15PM Aug 19, 2019Observed: 3.65 ft at 6:30PM Aug 19, 2019Observed: 3.65 ft at 6:45PM Aug 19, 2019Observed: 3.65 ft at 7:00PM Aug 19, 2019Observed: 3.65 ft at 7:15PM Aug 19, 2019Observed: 3.65 ft at 7:30PM Aug 19, 2019Observed: 3.65 ft at 7:45PM Aug 19, 2019Observed: 3.64 ft at 8:00PM Aug 19, 2019Observed: 3.64 ft at 8:15PM Aug 19, 2019Observed: 3.64 ft at 8:30PM Aug 19, 2019Observed: 3.64 ft at 8:45PM Aug 19, 2019Observed: 3.64 ft at 9:00PM Aug 19, 2019Observed: 3.64 ft at 9:15PM Aug 19, 2019Observed: 3.64 ft at 9:30PM Aug 19, 2019Observed: 3.63 ft at 9:45PM Aug 19, 2019Observed: 3.64 ft at 10:00PM Aug 19, 2019Observed: 3.64 ft at 10:15PM Aug 19, 2019Observed: 3.63 ft at 10:30PM Aug 19, 2019Observed: 3.63 ft at 10:45PM Aug 19, 2019Observed: 3.63 ft at 11:00PM Aug 19, 2019Observed: 3.63 ft at 11:15PM Aug 19, 2019Observed: 3.63 ft at 11:30PM Aug 19, 2019Observed: 3.63 ft at 11:45PM Aug 19, 2019Observed: 3.63 ft at 12:00AM Aug 20, 2019Observed: 3.63 ft at 12:15AM Aug 20, 2019Observed: 3.63 ft at 12:30AM Aug 20, 2019Observed: 3.63 ft at 12:45AM Aug 20, 2019Observed: 3.63 ft at 1:00AM Aug 20, 2019Observed: 3.63 ft at 1:15AM Aug 20, 2019Observed: 3.63 ft at 1:30AM Aug 20, 2019Observed: 3.63 ft at 1:45AM Aug 20, 2019Observed: 3.63 ft at 2:00AM Aug 20, 2019Observed: 3.63 ft at 2:15AM Aug 20, 2019Observed: 3.63 ft at 2:30AM Aug 20, 2019Observed: 3.63 ft at 2:45AM Aug 20, 2019Observed: 3.63 ft at 3:00AM Aug 20, 2019Observed: 3.63 ft at 3:15AM Aug 20, 2019Observed: 3.63 ft at 3:30AM Aug 20, 2019Observed: 3.63 ft at 3:45AM Aug 20, 2019Observed: 3.64 ft at 4:00AM Aug 20, 2019Observed: 3.64 ft at 4:15AM Aug 20, 2019Observed: 3.64 ft at 4:30AM Aug 20, 2019Observed: 3.64 ft at 4:45AM Aug 20, 2019Observed: 3.65 ft at 5:00AM Aug 20, 2019Observed: 3.65 ft at 5:15AM Aug 20, 2019Observed: 3.65 ft at 5:30AM Aug 20, 2019Observed: 3.65 ft at 5:45AM Aug 20, 2019Observed: 3.66 ft at 6:00AM Aug 20, 2019Observed: 3.66 ft at 6:15AM Aug 20, 2019Observed: 3.66 ft at 6:30AM Aug 20, 2019Observed: 3.66 ft at 6:45AM Aug 20, 2019Observed: 3.66 ft at 7:00AM Aug 20, 2019Observed: 3.66 ft at 7:15AM Aug 20, 2019Observed: 3.66 ft at 7:30AM Aug 20, 2019Observed: 3.66 ft at 7:45AM Aug 20, 2019Observed: 3.66 ft at 8:00AM Aug 20, 2019Observed: 3.66 ft at 8:15AM Aug 20, 2019Observed: 3.66 ft at 8:30AM Aug 20, 2019Observed: 3.66 ft at 8:45AM Aug 20, 2019Observed: 3.67 ft at 9:00AM Aug 20, 2019Observed: 3.66 ft at 9:15AM Aug 20, 2019Observed: 3.66 ft at 9:30AM Aug 20, 2019Observed: 3.66 ft at 9:45AM Aug 20, 2019Observed: 3.66 ft at 10:00AM Aug 20, 2019Observed: 3.66 ft at 10:15AM Aug 20, 2019Observed: 3.66 ft at 10:30AM Aug 20, 2019Observed: 3.66 ft at 10:45AM Aug 20, 2019Observed: 3.66 ft at 11:00AM Aug 20, 2019Observed: 3.66 ft at 11:15AM Aug 20, 2019Observed: 3.66 ft at 11:30AM Aug 20, 2019Observed: 3.66 ft at 11:45AM Aug 20, 2019Observed: 3.66 ft at 12:00PM Aug 20, 2019Observed: 3.66 ft at 12:15PM Aug 20, 2019Observed: 3.66 ft at 12:30PM Aug 20, 2019Observed: 3.66 ft at 12:45PM Aug 20, 2019Observed: 3.65 ft at 1:00PM Aug 20, 2019Observed: 3.66 ft at 1:15PM Aug 20, 2019Observed: 3.65 ft at 1:30PM Aug 20, 2019Observed: 3.65 ft at 1:45PM Aug 20, 2019Observed: 3.66 ft at 2:00PM Aug 20, 2019Observed: 3.65 ft at 2:15PM Aug 20, 2019Observed: 3.66 ft at 2:30PM Aug 20, 2019Observed: 3.66 ft at 2:45PM Aug 20, 2019Observed: 3.66 ft at 3:00PM Aug 20, 2019Observed: 3.68 ft at 3:15PM Aug 20, 2019Observed: 3.69 ft at 3:30PM Aug 20, 2019Observed: 3.71 ft at 3:45PM Aug 20, 2019Observed: 3.71 ft at 4:00PM Aug 20, 2019Observed: 3.71 ft at 4:15PM Aug 20, 2019Observed: 3.7 ft at 4:30PM Aug 20, 2019Observed: 3.7 ft at 4:45PM Aug 20, 2019Observed: 3.7 ft at 5:00PM Aug 20, 2019Observed: 3.69 ft at 5:15PM Aug 20, 2019Observed: 3.68 ft at 5:30PM Aug 20, 2019Observed: 3.68 ft at 5:45PM Aug 20, 2019Observed: 3.67 ft at 6:00PM Aug 20, 2019Observed: 3.66 ft at 6:15PM Aug 20, 2019Observed: 3.66 ft at 6:30PM Aug 20, 2019Observed: 3.66 ft at 6:45PM Aug 20, 2019Observed: 3.66 ft at 7:00PM Aug 20, 2019Observed: 3.66 ft at 7:15PM Aug 20, 2019Observed: 3.66 ft at 7:30PM Aug 20, 2019Observed: 3.66 ft at 7:45PM Aug 20, 2019Observed: 3.66 ft at 8:00PM Aug 20, 2019Observed: 3.66 ft at 8:15PM Aug 20, 2019Observed: 3.66 ft at 8:30PM Aug 20, 2019Observed: 3.65 ft at 8:45PM Aug 20, 2019Observed: 3.65 ft at 9:00PM Aug 20, 2019Observed: 3.65 ft at 9:15PM Aug 20, 2019Observed: 3.65 ft at 9:30PM Aug 20, 2019Observed: 3.65 ft at 9:45PM Aug 20, 2019Observed: 3.65 ft at 10:00PM Aug 20, 2019Observed: 3.64 ft at 10:15PM Aug 20, 2019Observed: 3.64 ft at 10:30PM Aug 20, 2019Observed: 3.64 ft at 10:45PM Aug 20, 2019Observed: 3.64 ft at 11:00PM Aug 20, 2019Observed: 3.64 ft at 11:15PM Aug 20, 2019Observed: 3.64 ft at 11:30PM Aug 20, 2019Observed: 3.64 ft at 11:45PM Aug 20, 2019Observed: 3.64 ft at 12:00AM Aug 21, 2019Observed: 3.64 ft at 12:15AM Aug 21, 2019Observed: 3.64 ft at 12:30AM Aug 21, 2019Observed: 3.64 ft at 12:45AM Aug 21, 2019Observed: 3.64 ft at 1:00AM Aug 21, 2019Observed: 3.64 ft at 1:15AM Aug 21, 2019Observed: 3.64 ft at 1:30AM Aug 21, 2019Observed: 3.64 ft at 1:45AM Aug 21, 2019Observed: 3.64 ft at 2:00AM Aug 21, 2019Observed: 3.64 ft at 2:15AM Aug 21, 2019Observed: 3.64 ft at 2:30AM Aug 21, 2019Observed: 3.64 ft at 2:45AM Aug 21, 2019Observed: 3.64 ft at 3:00AM Aug 21, 2019Observed: 3.63 ft at 3:15AM Aug 21, 2019Observed: 3.63 ft at 3:30AM Aug 21, 2019Observed: 3.63 ft at 3:45AM Aug 21, 2019Observed: 3.64 ft at 4:00AM Aug 21, 2019Observed: 3.63 ft at 4:15AM Aug 21, 2019Observed: 3.64 ft at 4:30AM Aug 21, 2019Observed: 3.64 ft at 4:45AM Aug 21, 2019Observed: 3.64 ft at 5:00AM Aug 21, 2019Observed: 3.64 ft at 5:15AM Aug 21, 2019Observed: 3.65 ft at 5:30AM Aug 21, 2019Observed: 3.65 ft at 5:45AM Aug 21, 2019Observed: 3.66 ft at 6:00AM Aug 21, 2019Observed: 3.66 ft at 6:15AM Aug 21, 2019Observed: 3.67 ft at 6:30AM Aug 21, 2019Observed: 3.67 ft at 6:45AM Aug 21, 2019Observed: 3.68 ft at 7:00AM Aug 21, 2019Observed: 3.68 ft at 7:15AM Aug 21, 2019Observed: 3.68 ft at 7:30AM Aug 21, 2019Observed: 3.68 ft at 7:45AM Aug 21, 2019Observed: 3.68 ft at 8:00AM Aug 21, 2019Observed: 3.68 ft at 8:15AM Aug 21, 2019Observed: 3.68 ft at 8:30AM Aug 21, 2019Observed: 3.68 ft at 8:45AM Aug 21, 2019Observed: 3.68 ft at 9:00AM Aug 21, 2019Observed: 3.68 ft at 9:15AM Aug 21, 2019Observed: 3.68 ft at 9:30AM Aug 21, 2019Observed: 3.68 ft at 9:45AM Aug 21, 2019Observed: 3.68 ft at 10:00AM Aug 21, 2019Observed: 3.67 ft at 11:15AM Aug 21, 2019Observed: 3.67 ft at 11:30AM Aug 21, 2019Observed: 3.66 ft at 11:45AM Aug 21, 2019Observed: 3.66 ft at 12:00PM Aug 21, 2019Observed: 3.66 ft at 12:15PM Aug 21, 2019Observed: 3.66 ft at 12:30PM Aug 21, 2019Observed: 3.66 ft at 12:45PM Aug 21, 2019Observed: 3.66 ft at 1:00PM Aug 21, 2019Observed: 3.66 ft at 1:15PM Aug 21, 2019Observed: 3.66 ft at 1:30PM Aug 21, 2019Observed: 3.66 ft at 1:45PM Aug 21, 2019Observed: 3.66 ft at 2:00PM Aug 21, 2019Observed: 3.65 ft at 2:15PM Aug 21, 2019Observed: 3.66 ft at 2:30PM Aug 21, 2019Observed: 3.65 ft at 2:45PM Aug 21, 2019Observed: 3.65 ft at 3:00PM Aug 21, 2019Observed: 3.66 ft at 3:15PM Aug 21, 2019Observed: 3.65 ft at 3:30PM Aug 21, 2019Observed: 3.65 ft at 3:45PM Aug 21, 2019Observed: 3.65 ft at 4:00PM Aug 21, 2019Observed: 3.65 ft at 4:15PM Aug 21, 2019Observed: 3.65 ft at 4:30PM Aug 21, 2019Observed: 3.65 ft at 4:45PM Aug 21, 2019Observed: 3.65 ft at 5:00PM Aug 21, 2019Observed: 3.64 ft at 5:15PM Aug 21, 2019Observed: 3.64 ft at 5:30PM Aug 21, 2019Observed: 3.64 ft at 5:45PM Aug 21, 2019Observed: 3.64 ft at 6:00PM Aug 21, 2019Observed: 3.64 ft at 6:15PM Aug 21, 2019Observed: 3.64 ft at 6:30PM Aug 21, 2019Observed: 3.64 ft at 6:45PM Aug 21, 2019Observed: 3.64 ft at 7:00PM Aug 21, 2019Observed: 3.64 ft at 7:15PM Aug 21, 2019Observed: 3.64 ft at 7:30PM Aug 21, 2019Observed: 3.64 ft at 7:45PM Aug 21, 2019Observed: 3.65 ft at 8:00PM Aug 21, 2019Observed: 3.65 ft at 8:15PM Aug 21, 2019Observed: 3.65 ft at 8:30PM Aug 21, 2019Observed: 3.66 ft at 8:45PM Aug 21, 2019Observed: 3.67 ft at 9:00PM Aug 21, 2019Observed: 3.67 ft at 9:15PM Aug 21, 2019Observed: 3.68 ft at 9:30PM Aug 21, 2019Observed: 3.69 ft at 9:45PM Aug 21, 2019Observed: 3.7 ft at 10:00PM Aug 21, 2019Observed: 3.7 ft at 10:15PM Aug 21, 2019Observed: 3.71 ft at 10:30PM Aug 21, 2019Observed: 3.71 ft at 10:45PM Aug 21, 2019Observed: 3.71 ft at 11:00PM Aug 21, 2019Observed: 3.71 ft at 11:15PM Aug 21, 2019Observed: 3.72 ft at 11:30PM Aug 21, 2019Observed: 3.71 ft at 11:45PM Aug 21, 2019Observed: 3.72 ft at 12:00AM Aug 22, 2019Observed: 3.71 ft at 12:15AM Aug 22, 2019Observed: 3.72 ft at 12:30AM Aug 22, 2019Observed: 3.71 ft at 12:45AM Aug 22, 2019Observed: 3.71 ft at 1:00AM Aug 22, 2019Observed: 3.71 ft at 1:15AM Aug 22, 2019Observed: 3.71 ft at 1:30AM Aug 22, 2019Observed: 3.71 ft at 1:45AM Aug 22, 2019Observed: 3.71 ft at 2:00AM Aug 22, 2019Observed: 3.71 ft at 2:15AM Aug 22, 2019Observed: 3.71 ft at 2:30AM Aug 22, 2019Observed: 3.71 ft at 2:45AM Aug 22, 2019Observed: 3.71 ft at 3:00AM Aug 22, 2019Observed: 3.71 ft at 3:15AM Aug 22, 2019Observed: 3.71 ft at 3:30AM Aug 22, 2019Observed: 3.71 ft at 3:45AM Aug 22, 2019Observed: 3.71 ft at 4:00AM Aug 22, 2019Observed: 3.7 ft at 4:15AM Aug 22, 2019Observed: 3.71 ft at 4:30AM Aug 22, 2019Observed: 3.7 ft at 4:45AM Aug 22, 2019Observed: 3.7 ft at 5:00AM Aug 22, 2019Observed: 3.7 ft at 5:15AM Aug 22, 2019Observed: 3.7 ft at 5:30AM Aug 22, 2019Observed: 3.7 ft at 5:45AM Aug 22, 2019Observed: 3.7 ft at 6:00AM Aug 22, 2019Observed: 3.69 ft at 6:15AM Aug 22, 2019Observed: 3.69 ft at 6:30AM Aug 22, 2019Observed: 3.7 ft at 6:45AM Aug 22, 2019Observed: 3.69 ft at 7:00AM Aug 22, 2019Observed: 3.69 ft at 7:15AM Aug 22, 2019Observed: 3.69 ft at 7:30AM Aug 22, 2019Observed: 3.68 ft at 7:45AM Aug 22, 2019Observed: 3.69 ft at 8:00AM Aug 22, 2019Observed: 3.68 ft at 8:15AM Aug 22, 2019Observed: 3.69 ft at 8:30AM Aug 22, 2019Observed: 3.69 ft at 8:45AM Aug 22, 2019Observed: 3.68 ft at 9:00AM Aug 22, 2019Observed: 3.68 ft at 9:15AM Aug 22, 2019Observed: 3.68 ft at 9:30AM Aug 22, 2019Observed: 3.68 ft at 9:45AM Aug 22, 2019Observed: 3.68 ft at 10:00AM Aug 22, 2019Observed: 3.68 ft at 10:15AM Aug 22, 2019Observed: 3.68 ft at 10:30AM Aug 22, 2019Observed: 3.67 ft at 10:45AM Aug 22, 2019Observed: 3.67 ft at 11:00AM Aug 22, 2019Observed: 3.67 ft at 11:15AM Aug 22, 2019Observed: 3.67 ft at 11:30AM Aug 22, 2019Observed: 3.67 ft at 11:45AM Aug 22, 2019Observed: 3.67 ft at 12:00PM Aug 22, 2019Observed: 3.67 ft at 12:15PM Aug 22, 2019Observed: 3.67 ft at 12:30PM Aug 22, 2019Observed: 3.67 ft at 12:45PM Aug 22, 2019Observed: 3.67 ft at 1:00PM Aug 22, 2019Observed: 3.67 ft at 1:15PM Aug 22, 2019Observed: 3.67 ft at 1:30PM Aug 22, 2019Observed: 3.67 ft at 1:45PM Aug 22, 2019Observed: 3.67 ft at 2:00PM Aug 22, 2019Observed: 3.67 ft at 2:15PM Aug 22, 2019Observed: 3.67 ft at 2:30PM Aug 22, 2019Observed: 3.66 ft at 2:45PM Aug 22, 2019Observed: 3.67 ft at 3:00PM Aug 22, 2019Observed: 3.66 ft at 3:15PM Aug 22, 2019Observed: 3.67 ft at 3:30PM Aug 22, 2019Observed: 3.66 ft at 3:45PM Aug 22, 2019Observed: 3.66 ft at 4:00PM Aug 22, 2019Observed: 3.66 ft at 4:15PM Aug 22, 2019Observed: 3.66 ft at 4:30PM Aug 22, 2019Observed: 3.66 ft at 4:45PM Aug 22, 2019Observed: 3.66 ft at 5:00PM Aug 22, 2019Observed: 3.66 ft at 5:15PM Aug 22, 2019Observed: 3.65 ft at 5:30PM Aug 22, 2019Observed: 3.66 ft at 5:45PM Aug 22, 2019Observed: 3.65 ft at 6:00PM Aug 22, 2019Observed: 3.65 ft at 6:15PM Aug 22, 2019Observed: 3.65 ft at 6:30PM Aug 22, 2019Observed: 3.65 ft at 6:45PM Aug 22, 2019Observed: 3.65 ft at 7:00PM Aug 22, 2019Observed: 3.64 ft at 7:15PM Aug 22, 2019Observed: 3.65 ft at 7:30PM Aug 22, 2019Observed: 3.64 ft at 7:45PM Aug 22, 2019Observed: 3.64 ft at 8:00PM Aug 22, 2019Observed: 3.64 ft at 8:15PM Aug 22, 2019Observed: 3.64 ft at 8:30PM Aug 22, 2019Observed: 3.64 ft at 8:45PM Aug 22, 2019Observed: 3.64 ft at 9:00PM Aug 22, 2019Observed: 3.64 ft at 9:15PM Aug 22, 2019Observed: 3.64 ft at 9:30PM Aug 22, 2019Observed: 3.64 ft at 9:45PM Aug 22, 2019Observed: 3.64 ft at 10:00PM Aug 22, 2019Observed: 3.63 ft at 10:15PM Aug 22, 2019Observed: 3.63 ft at 10:30PM Aug 22, 2019Observed: 3.63 ft at 10:45PM Aug 22, 2019Observed: 3.63 ft at 11:00PM Aug 22, 2019Observed: 3.63 ft at 11:15PM Aug 22, 2019Observed: 3.63 ft at 11:30PM Aug 22, 2019Observed: 3.63 ft at 11:45PM Aug 22, 2019Observed: 3.63 ft at 12:00AM Aug 23, 2019Observed: 3.63 ft at 12:15AM Aug 23, 2019Observed: 3.63 ft at 12:30AM Aug 23, 2019Observed: 3.63 ft at 12:45AM Aug 23, 2019Observed: 3.63 ft at 1:00AM Aug 23, 2019Observed: 3.63 ft at 1:15AM Aug 23, 2019Observed: 3.63 ft at 1:30AM Aug 23, 2019Observed: 3.63 ft at 1:45AM Aug 23, 2019Observed: 3.63 ft at 2:00AM Aug 23, 2019Observed: 3.63 ft at 2:15AM Aug 23, 2019Observed: 3.63 ft at 2:30AM Aug 23, 2019Observed: 3.63 ft at 2:45AM Aug 23, 2019Observed: 3.63 ft at 3:00AM Aug 23, 2019Observed: 3.63 ft at 3:15AM Aug 23, 2019Observed: 3.63 ft at 3:30AM Aug 23, 2019Observed: 3.63 ft at 3:45AM Aug 23, 2019Observed: 3.63 ft at 4:00AM Aug 23, 2019Observed: 3.63 ft at 4:15AM Aug 23, 2019Observed: 3.63 ft at 4:30AM Aug 23, 2019Observed: 3.63 ft at 4:45AM Aug 23, 2019Observed: 3.62 ft at 5:00AM Aug 23, 2019Observed: 3.63 ft at 5:15AM Aug 23, 2019Observed: 3.62 ft at 5:30AM Aug 23, 2019Observed: 3.62 ft at 5:45AM Aug 23, 2019Observed: 3.62 ft at 6:00AM Aug 23, 2019Observed: 3.62 ft at 6:15AM Aug 23, 2019Observed: 3.62 ft at 6:30AM Aug 23, 2019Observed: 3.64 ft at 6:45AM Aug 23, 2019Observed: 3.67 ft at 7:00AM Aug 23, 2019Observed: 3.69 ft at 7:15AM Aug 23, 2019Observed: 3.7 ft at 7:30AM Aug 23, 2019Observed: 3.7 ft at 7:45AM Aug 23, 2019Observed: 3.71 ft at 8:00AM Aug 23, 2019Observed: 3.71 ft at 8:15AM Aug 23, 2019Observed: 3.72 ft at 8:30AM Aug 23, 2019Observed: 3.72 ft at 8:45AM Aug 23, 2019Observed: 3.73 ft at 9:00AM Aug 23, 2019Observed: 3.73 ft at 9:15AM Aug 23, 2019Observed: 3.75 ft at 9:30AM Aug 23, 2019Observed: 3.75 ft at 9:45AM Aug 23, 2019Observed: 3.75 ft at 10:00AM Aug 23, 2019Observed: 3.76 ft at 10:15AM Aug 23, 2019Observed: 3.77 ft at 10:30AM Aug 23, 2019Observed: 3.78 ft at 10:45AM Aug 23, 2019Observed: 3.78 ft at 11:00AM Aug 23, 2019Observed: 3.79 ft at 11:15AM Aug 23, 2019Observed: 3.79 ft at 11:30AM Aug 23, 2019Observed: 3.8 ft at 11:45AM Aug 23, 2019Observed: 3.81 ft at 12:00PM Aug 23, 2019Observed: 3.82 ft at 12:15PM Aug 23, 2019Observed: 3.83 ft at 12:30PM Aug 23, 2019Observed: 3.84 ft at 12:45PM Aug 23, 2019Observed: 3.85 ft at 1:00PM Aug 23, 2019Observed: 3.85 ft at 1:15PM Aug 23, 2019Observed: 3.86 ft at 1:30PM Aug 23, 2019Observed: 3.87 ft at 1:45PM Aug 23, 2019Observed: 3.88 ft at 2:00PM Aug 23, 2019Observed: 3.88 ft at 2:15PM Aug 23, 2019Observed: 3.89 ft at 2:30PM Aug 23, 2019Observed: 3.9 ft at 2:45PM Aug 23, 2019Observed: 3.9 ft at 3:00PM Aug 23, 2019Observed: 3.9 ft at 3:15PM Aug 23, 2019Observed: 3.9 ft at 3:30PM Aug 23, 2019Observed: 3.91 ft at 3:45PM Aug 23, 2019Observed: 3.91 ft at 4:00PM Aug 23, 2019Observed: 3.91 ft at 4:15PM Aug 23, 2019Observed: 3.91 ft at 4:30PM Aug 23, 2019Observed: 3.92 ft at 4:45PM Aug 23, 2019Observed: 3.92 ft at 5:00PM Aug 23, 2019Observed: 3.93 ft at 5:15PM Aug 23, 2019Observed: 3.93 ft at 5:30PM Aug 23, 2019Observed: 3.93 ft at 5:45PM Aug 23, 2019Observed: 3.94 ft at 6:00PM Aug 23, 2019Observed: 3.94 ft at 6:15PM Aug 23, 2019Observed: 3.95 ft at 6:30PM Aug 23, 2019Observed: 3.95 ft at 6:45PM Aug 23, 2019Observed: 3.96 ft at 7:00PM Aug 23, 2019Observed: 3.96 ft at 7:15PM Aug 23, 2019Observed: 3.96 ft at 7:30PM Aug 23, 2019Highest Observation: 3.97 ft at 7:45PM Aug 23, 2019Highest Observation: 3.97 ft at 8:00PM Aug 23, 2019Highest Forecast: 4.2 ft 2:00AM Aug 24, 2019Forecast: 4.1 ft 8:00AM Aug 24, 2019Forecast: 3.9 ft 2:00PM Aug 24, 2019Forecast: 3.8 ft 8:00PM Aug 24, 2019Forecast: 3.8 ft 2:00AM Aug 25, 2019Forecast: 3.8 ft 8:00AM Aug 25, 2019Forecast: 3.7 ft 2:00PM Aug 25, 2019Forecast: 3.7 ft 8:00PM Aug 25, 2019Forecast: 3.7 ft 2:00AM Aug 26, 2019Forecast: 3.7 ft 8:00AM Aug 26, 2019USGS--Water Resources of the United StatesPETW2(plotting HGIRG) Graph Created (8:39PM Aug 23, 2019)ObservedForecast (issued 10:00AM Aug 23)Latest observed value: 3.97 ft at 8:00 PM EDT 23-Aug-2019. Flood Stage is 14 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
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
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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