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Hydrograph River at a Glance Download
Potomac River near Washington DC (Little Falls) Stage (ft)Flow (kcfs)Observed: 4.22 ft at 8:45PM Apr 14, 2014Observed: 4.22 ft at 9:00PM Apr 14, 2014Observed: 4.22 ft at 9:15PM Apr 14, 2014Observed: 4.22 ft at 9:30PM Apr 14, 2014Observed: 4.21 ft at 9:45PM Apr 14, 2014Observed: 4.21 ft at 10:00PM Apr 14, 2014Observed: 4.21 ft at 10:15PM Apr 14, 2014Observed: 4.21 ft at 10:30PM Apr 14, 2014Observed: 4.21 ft at 10:45PM Apr 14, 2014Observed: 4.21 ft at 11:00PM Apr 14, 2014Observed: 4.21 ft at 11:15PM Apr 14, 2014Observed: 4.2 ft at 11:30PM Apr 14, 2014Observed: 4.2 ft at 11:45PM Apr 14, 2014Observed: 4.2 ft at 12:00AM Apr 15, 2014Observed: 4.21 ft at 12:15AM Apr 15, 2014Observed: 4.21 ft at 12:30AM Apr 15, 2014Observed: 4.2 ft at 12:45AM Apr 15, 2014Observed: 4.2 ft at 1:00AM Apr 15, 2014Observed: 4.2 ft at 1:15AM Apr 15, 2014Observed: 4.2 ft at 1:30AM Apr 15, 2014Observed: 4.2 ft at 1:45AM Apr 15, 2014Observed: 4.2 ft at 2:00AM Apr 15, 2014Observed: 4.2 ft at 2:15AM Apr 15, 2014Observed: 4.2 ft at 2:30AM Apr 15, 2014Observed: 4.19 ft at 2:45AM Apr 15, 2014Observed: 4.2 ft at 3:00AM Apr 15, 2014Observed: 4.2 ft at 3:15AM Apr 15, 2014Observed: 4.2 ft at 3:30AM Apr 15, 2014Observed: 4.2 ft at 3:45AM Apr 15, 2014Observed: 4.2 ft at 4:00AM Apr 15, 2014Observed: 4.2 ft at 4:15AM Apr 15, 2014Observed: 4.2 ft at 4:30AM Apr 15, 2014Observed: 4.2 ft at 4:45AM Apr 15, 2014Observed: 4.2 ft at 5:00AM Apr 15, 2014Observed: 4.19 ft at 5:15AM Apr 15, 2014Observed: 4.2 ft at 5:30AM Apr 15, 2014Observed: 4.2 ft at 5:45AM Apr 15, 2014Observed: 4.19 ft at 6:00AM Apr 15, 2014Observed: 4.19 ft at 6:15AM Apr 15, 2014Observed: 4.19 ft at 6:30AM Apr 15, 2014Observed: 4.19 ft at 6:45AM Apr 15, 2014Observed: 4.2 ft at 7:00AM Apr 15, 2014Observed: 4.19 ft at 7:15AM Apr 15, 2014Observed: 4.19 ft at 7:30AM Apr 15, 2014Observed: 4.19 ft at 7:45AM Apr 15, 2014Observed: 4.19 ft at 8:00AM Apr 15, 2014Observed: 4.21 ft at 8:15AM Apr 15, 2014Observed: 4.22 ft at 8:30AM Apr 15, 2014Observed: 4.24 ft at 8:45AM Apr 15, 2014Observed: 4.27 ft at 9:00AM Apr 15, 2014Observed: 4.3 ft at 9:15AM Apr 15, 2014Observed: 4.37 ft at 9:30AM Apr 15, 2014Observed: 4.41 ft at 9:45AM Apr 15, 2014Observed: 4.43 ft at 10:00AM Apr 15, 2014Observed: 4.44 ft at 10:15AM Apr 15, 2014Observed: 4.44 ft at 10:30AM Apr 15, 2014Observed: 4.44 ft at 10:45AM Apr 15, 2014Observed: 4.44 ft at 11:00AM Apr 15, 2014Observed: 4.43 ft at 11:15AM Apr 15, 2014Observed: 4.42 ft at 11:30AM Apr 15, 2014Observed: 4.4 ft at 11:45AM Apr 15, 2014Observed: 4.38 ft at 12:00PM Apr 15, 2014Observed: 4.37 ft at 12:15PM Apr 15, 2014Observed: 4.35 ft at 12:30PM Apr 15, 2014Observed: 4.35 ft at 12:45PM Apr 15, 2014Observed: 4.34 ft at 1:00PM Apr 15, 2014Observed: 4.33 ft at 1:15PM Apr 15, 2014Observed: 4.35 ft at 1:30PM Apr 15, 2014Observed: 4.33 ft at 1:45PM Apr 15, 2014Observed: 4.33 ft at 2:00PM Apr 15, 2014Observed: 4.35 ft at 2:15PM Apr 15, 2014Observed: 4.37 ft at 2:30PM Apr 15, 2014Observed: 4.37 ft at 2:45PM Apr 15, 2014Observed: 4.4 ft at 3:00PM Apr 15, 2014Observed: 4.36 ft at 3:15PM Apr 15, 2014Observed: 4.38 ft at 3:30PM Apr 15, 2014Observed: 4.39 ft at 3:45PM Apr 15, 2014Observed: 4.39 ft at 4:00PM Apr 15, 2014Observed: 4.4 ft at 4:15PM Apr 15, 2014Observed: 4.41 ft at 4:30PM Apr 15, 2014Observed: 4.45 ft at 4:45PM Apr 15, 2014Observed: 4.38 ft at 5:00PM Apr 15, 2014Observed: 4.41 ft at 5:15PM Apr 15, 2014Observed: 4.43 ft at 5:30PM Apr 15, 2014Observed: 4.42 ft at 5:45PM Apr 15, 2014Observed: 4.42 ft at 6:00PM Apr 15, 2014Observed: 4.41 ft at 6:15PM Apr 15, 2014Observed: 4.43 ft at 6:30PM Apr 15, 2014Observed: 4.43 ft at 6:45PM Apr 15, 2014Observed: 4.47 ft at 7:00PM Apr 15, 2014Observed: 4.41 ft at 7:15PM Apr 15, 2014Observed: 4.41 ft at 7:30PM Apr 15, 2014Observed: 4.43 ft at 7:45PM Apr 15, 2014Observed: 4.44 ft at 8:00PM Apr 15, 2014Observed: 4.44 ft at 8:15PM Apr 15, 2014Observed: 4.45 ft at 8:30PM Apr 15, 2014Observed: 4.45 ft at 8:45PM Apr 15, 2014Observed: 4.43 ft at 9:00PM Apr 15, 2014Observed: 4.45 ft at 9:15PM Apr 15, 2014Observed: 4.46 ft at 9:30PM Apr 15, 2014Observed: 4.46 ft at 9:45PM Apr 15, 2014Observed: 4.47 ft at 10:00PM Apr 15, 2014Observed: 4.48 ft at 10:15PM Apr 15, 2014Observed: 4.49 ft at 10:30PM Apr 15, 2014Observed: 4.49 ft at 10:45PM Apr 15, 2014Observed: 4.53 ft at 11:00PM Apr 15, 2014Observed: 4.49 ft at 11:15PM Apr 15, 2014Observed: 4.46 ft at 11:30PM Apr 15, 2014Observed: 4.51 ft at 11:45PM Apr 15, 2014Observed: 4.51 ft at 12:00AM Apr 16, 2014Observed: 4.5 ft at 12:15AM Apr 16, 2014Observed: 4.48 ft at 12:30AM Apr 16, 2014Observed: 4.5 ft at 12:45AM Apr 16, 2014Observed: 4.49 ft at 1:00AM Apr 16, 2014Observed: 4.53 ft at 1:15AM Apr 16, 2014Observed: 4.5 ft at 1:30AM Apr 16, 2014Observed: 4.51 ft at 1:45AM Apr 16, 2014Observed: 4.54 ft at 2:00AM Apr 16, 2014Observed: 4.49 ft at 2:15AM Apr 16, 2014Observed: 4.52 ft at 2:30AM Apr 16, 2014Observed: 4.52 ft at 2:45AM Apr 16, 2014Observed: 4.52 ft at 3:00AM Apr 16, 2014Observed: 4.52 ft at 3:15AM Apr 16, 2014Observed: 4.52 ft at 3:30AM Apr 16, 2014Observed: 4.5 ft at 3:45AM Apr 16, 2014Observed: 4.51 ft at 4:00AM Apr 16, 2014Observed: 4.53 ft at 4:15AM Apr 16, 2014Observed: 4.52 ft at 4:30AM Apr 16, 2014Observed: 4.52 ft at 4:45AM Apr 16, 2014Observed: 4.52 ft at 5:00AM Apr 16, 2014Observed: 4.51 ft at 5:15AM Apr 16, 2014Observed: 4.52 ft at 5:30AM Apr 16, 2014Observed: 4.5 ft at 5:45AM Apr 16, 2014Observed: 4.52 ft at 6:00AM Apr 16, 2014Observed: 4.51 ft at 6:15AM Apr 16, 2014Observed: 4.5 ft at 6:30AM Apr 16, 2014Observed: 4.51 ft at 6:45AM Apr 16, 2014Observed: 4.52 ft at 7:00AM Apr 16, 2014Observed: 4.52 ft at 7:15AM Apr 16, 2014Observed: 4.52 ft at 7:30AM Apr 16, 2014Observed: 4.54 ft at 7:45AM Apr 16, 2014Observed: 4.51 ft at 8:00AM Apr 16, 2014Observed: 4.51 ft at 8:15AM Apr 16, 2014Observed: 4.51 ft at 8:30AM Apr 16, 2014Observed: 4.54 ft at 8:45AM Apr 16, 2014Observed: 4.53 ft at 9:00AM Apr 16, 2014Observed: 4.53 ft at 9:15AM Apr 16, 2014Observed: 4.52 ft at 9:30AM Apr 16, 2014Observed: 4.52 ft at 9:45AM Apr 16, 2014Observed: 4.53 ft at 10:00AM Apr 16, 2014Observed: 4.52 ft at 10:15AM Apr 16, 2014Observed: 4.51 ft at 10:30AM Apr 16, 2014Observed: 4.54 ft at 10:45AM Apr 16, 2014Observed: 4.52 ft at 11:00AM Apr 16, 2014Observed: 4.53 ft at 11:15AM Apr 16, 2014Observed: 4.53 ft at 11:30AM Apr 16, 2014Observed: 4.54 ft at 11:45AM Apr 16, 2014Observed: 4.54 ft at 12:00PM Apr 16, 2014Observed: 4.51 ft at 12:15PM Apr 16, 2014Observed: 4.54 ft at 12:30PM Apr 16, 2014Observed: 4.54 ft at 12:45PM Apr 16, 2014Observed: 4.54 ft at 1:00PM Apr 16, 2014Observed: 4.54 ft at 1:15PM Apr 16, 2014Observed: 4.54 ft at 1:30PM Apr 16, 2014Observed: 4.54 ft at 1:45PM Apr 16, 2014Observed: 4.54 ft at 2:00PM Apr 16, 2014Observed: 4.55 ft at 2:15PM Apr 16, 2014Observed: 4.53 ft at 2:30PM Apr 16, 2014Observed: 4.54 ft at 2:45PM Apr 16, 2014Observed: 4.54 ft at 3:00PM Apr 16, 2014Observed: 4.54 ft at 3:15PM Apr 16, 2014Observed: 4.55 ft at 3:30PM Apr 16, 2014Observed: 4.55 ft at 3:45PM Apr 16, 2014Observed: 4.54 ft at 4:00PM Apr 16, 2014Observed: 4.55 ft at 4:15PM Apr 16, 2014Observed: 4.55 ft at 4:30PM Apr 16, 2014Observed: 4.56 ft at 4:45PM Apr 16, 2014Observed: 4.56 ft at 5:00PM Apr 16, 2014Observed: 4.56 ft at 5:15PM Apr 16, 2014Observed: 4.56 ft at 5:30PM Apr 16, 2014Observed: 4.57 ft at 5:45PM Apr 16, 2014Observed: 4.57 ft at 6:00PM Apr 16, 2014Observed: 4.57 ft at 6:15PM Apr 16, 2014Observed: 4.57 ft at 6:30PM Apr 16, 2014Observed: 4.57 ft at 6:45PM Apr 16, 2014Observed: 4.58 ft at 7:00PM Apr 16, 2014Observed: 4.58 ft at 7:15PM Apr 16, 2014Observed: 4.58 ft at 7:30PM Apr 16, 2014Observed: 4.58 ft at 7:45PM Apr 16, 2014Observed: 4.59 ft at 8:00PM Apr 16, 2014Observed: 4.59 ft at 8:15PM Apr 16, 2014Observed: 4.6 ft at 8:30PM Apr 16, 2014Observed: 4.59 ft at 8:45PM Apr 16, 2014Observed: 4.6 ft at 9:00PM Apr 16, 2014Observed: 4.6 ft at 9:15PM Apr 16, 2014Observed: 4.6 ft at 9:30PM Apr 16, 2014Observed: 4.6 ft at 9:45PM Apr 16, 2014Observed: 4.61 ft at 10:00PM Apr 16, 2014Observed: 4.61 ft at 10:15PM Apr 16, 2014Observed: 4.61 ft at 10:30PM Apr 16, 2014Observed: 4.62 ft at 10:45PM Apr 16, 2014Observed: 4.62 ft at 11:00PM Apr 16, 2014Observed: 4.62 ft at 11:15PM Apr 16, 2014Observed: 4.63 ft at 11:30PM Apr 16, 2014Observed: 4.63 ft at 11:45PM Apr 16, 2014Observed: 4.64 ft at 12:00AM Apr 17, 2014Observed: 4.64 ft at 12:15AM Apr 17, 2014Observed: 4.64 ft at 12:30AM Apr 17, 2014Observed: 4.65 ft at 12:45AM Apr 17, 2014Observed: 4.65 ft at 1:00AM Apr 17, 2014Observed: 4.65 ft at 1:15AM Apr 17, 2014Observed: 4.65 ft at 1:30AM Apr 17, 2014Observed: 4.66 ft at 1:45AM Apr 17, 2014Observed: 4.66 ft at 2:00AM Apr 17, 2014Observed: 4.67 ft at 2:15AM Apr 17, 2014Observed: 4.67 ft at 2:30AM Apr 17, 2014Observed: 4.67 ft at 2:45AM Apr 17, 2014Observed: 4.67 ft at 3:00AM Apr 17, 2014Observed: 4.66 ft at 3:15AM Apr 17, 2014Observed: 4.67 ft at 3:30AM Apr 17, 2014Observed: 4.67 ft at 3:45AM Apr 17, 2014Observed: 4.67 ft at 4:00AM Apr 17, 2014Observed: 4.67 ft at 4:15AM Apr 17, 2014Observed: 4.68 ft at 4:30AM Apr 17, 2014Observed: 4.68 ft at 4:45AM Apr 17, 2014Observed: 4.68 ft at 5:00AM Apr 17, 2014Observed: 4.69 ft at 5:15AM Apr 17, 2014Observed: 4.69 ft at 5:30AM Apr 17, 2014Observed: 4.68 ft at 5:45AM Apr 17, 2014Observed: 4.69 ft at 6:00AM Apr 17, 2014Observed: 4.69 ft at 6:15AM Apr 17, 2014Observed: 4.69 ft at 6:30AM Apr 17, 2014Observed: 4.69 ft at 6:45AM Apr 17, 2014Observed: 4.69 ft at 7:00AM Apr 17, 2014Observed: 4.69 ft at 7:15AM Apr 17, 2014Highest Observation: 4.7 ft at 7:30AM Apr 17, 2014Observed: 4.69 ft at 7:45AM Apr 17, 2014Highest Observation: 4.7 ft at 8:00AM Apr 17, 2014Highest Observation: 4.7 ft at 8:15AM Apr 17, 2014Highest Observation: 4.7 ft at 8:30AM Apr 17, 2014Highest Observation: 4.7 ft at 8:45AM Apr 17, 2014Highest Observation: 4.7 ft at 9:00AM Apr 17, 2014Highest Observation: 4.7 ft at 9:15AM Apr 17, 2014Highest Observation: 4.7 ft at 9:30AM Apr 17, 2014Highest Observation: 4.7 ft at 9:45AM Apr 17, 2014Highest Observation: 4.7 ft at 10:00AM Apr 17, 2014Observed: 4.69 ft at 10:15AM Apr 17, 2014Highest Observation: 4.7 ft at 10:30AM Apr 17, 2014Highest Observation: 4.7 ft at 10:45AM Apr 17, 2014Highest Observation: 4.7 ft at 11:00AM Apr 17, 2014Observed: 4.69 ft at 11:15AM Apr 17, 2014Highest Observation: 4.7 ft at 11:30AM Apr 17, 2014Observed: 4.69 ft at 11:45AM Apr 17, 2014Observed: 4.69 ft at 12:00PM Apr 17, 2014Observed: 4.68 ft at 12:15PM Apr 17, 2014Observed: 4.69 ft at 12:30PM Apr 17, 2014Observed: 4.68 ft at 12:45PM Apr 17, 2014Observed: 4.69 ft at 1:00PM Apr 17, 2014Observed: 4.68 ft at 1:15PM Apr 17, 2014Observed: 4.68 ft at 1:30PM Apr 17, 2014Observed: 4.68 ft at 1:45PM Apr 17, 2014Observed: 4.68 ft at 2:00PM Apr 17, 2014Observed: 4.68 ft at 2:15PM Apr 17, 2014Observed: 4.68 ft at 2:30PM Apr 17, 2014Observed: 4.67 ft at 2:45PM Apr 17, 2014Observed: 4.67 ft at 3:00PM Apr 17, 2014Observed: 4.67 ft at 3:15PM Apr 17, 2014Observed: 4.67 ft at 3:30PM Apr 17, 2014Observed: 4.67 ft at 3:45PM Apr 17, 2014Observed: 4.68 ft at 4:00PM Apr 17, 2014Observed: 4.67 ft at 4:15PM Apr 17, 2014Observed: 4.67 ft at 4:30PM Apr 17, 2014Observed: 4.66 ft at 4:45PM Apr 17, 2014Observed: 4.67 ft at 5:00PM Apr 17, 2014Observed: 4.67 ft at 5:15PM Apr 17, 2014Observed: 4.66 ft at 5:30PM Apr 17, 2014Observed: 4.67 ft at 5:45PM Apr 17, 2014Observed: 4.66 ft at 6:00PM Apr 17, 2014Observed: 4.66 ft at 6:15PM Apr 17, 2014Observed: 4.66 ft at 6:30PM Apr 17, 2014Observed: 4.66 ft at 6:45PM Apr 17, 2014Observed: 4.65 ft at 7:00PM Apr 17, 2014Observed: 4.65 ft at 7:15PM Apr 17, 2014Observed: 4.65 ft at 7:30PM Apr 17, 2014Observed: 4.65 ft at 7:45PM Apr 17, 2014Observed: 4.65 ft at 8:00PM Apr 17, 2014Observed: 4.65 ft at 8:15PM Apr 17, 2014Observed: 4.64 ft at 8:30PM Apr 17, 2014Observed: 4.64 ft at 8:45PM Apr 17, 2014Observed: 4.64 ft at 9:00PM Apr 17, 2014Observed: 4.65 ft at 9:15PM Apr 17, 2014Observed: 4.64 ft at 9:30PM Apr 17, 2014Observed: 4.64 ft at 9:45PM Apr 17, 2014Observed: 4.65 ft at 10:00PM Apr 17, 2014Observed: 4.64 ft at 10:15PM Apr 17, 2014Observed: 4.65 ft at 10:30PM Apr 17, 2014Observed: 4.65 ft at 10:45PM Apr 17, 2014Observed: 4.65 ft at 11:00PM Apr 17, 2014Observed: 4.64 ft at 11:15PM Apr 17, 2014Observed: 4.65 ft at 11:30PM Apr 17, 2014Observed: 4.65 ft at 11:45PM Apr 17, 2014Observed: 4.65 ft at 12:00AM Apr 18, 2014Observed: 4.65 ft at 12:15AM Apr 18, 2014Observed: 4.65 ft at 12:30AM Apr 18, 2014Observed: 4.65 ft at 12:45AM Apr 18, 2014Observed: 4.65 ft at 1:00AM Apr 18, 2014Observed: 4.65 ft at 1:15AM Apr 18, 2014Observed: 4.65 ft at 1:30AM Apr 18, 2014Observed: 4.65 ft at 1:45AM Apr 18, 2014Observed: 4.65 ft at 2:00AM Apr 18, 2014Observed: 4.65 ft at 2:15AM Apr 18, 2014Observed: 4.65 ft at 2:30AM Apr 18, 2014Observed: 4.65 ft at 2:45AM Apr 18, 2014Observed: 4.66 ft at 3:00AM Apr 18, 2014Observed: 4.66 ft at 3:15AM Apr 18, 2014Observed: 4.66 ft at 3:30AM Apr 18, 2014Observed: 4.66 ft at 3:45AM Apr 18, 2014Observed: 4.66 ft at 4:00AM Apr 18, 2014Observed: 4.65 ft at 4:15AM Apr 18, 2014Observed: 4.66 ft at 4:30AM Apr 18, 2014Observed: 4.66 ft at 4:45AM Apr 18, 2014Observed: 4.66 ft at 5:00AM Apr 18, 2014Observed: 4.65 ft at 5:15AM Apr 18, 2014Observed: 4.66 ft at 5:30AM Apr 18, 2014Observed: 4.67 ft at 5:45AM Apr 18, 2014Observed: 4.66 ft at 6:00AM Apr 18, 2014Observed: 4.66 ft at 6:15AM Apr 18, 2014Observed: 4.67 ft at 6:30AM Apr 18, 2014Observed: 4.66 ft at 6:45AM Apr 18, 2014Observed: 4.67 ft at 7:00AM Apr 18, 2014Observed: 4.67 ft at 7:15AM Apr 18, 2014Observed: 4.67 ft at 7:30AM Apr 18, 2014Observed: 4.67 ft at 7:45AM Apr 18, 2014Observed: 4.66 ft at 8:00AM Apr 18, 2014Observed: 4.67 ft at 8:15AM Apr 18, 2014Observed: 4.66 ft at 8:30AM Apr 18, 2014Observed: 4.67 ft at 8:45AM Apr 18, 2014Observed: 4.66 ft at 9:00AM Apr 18, 2014Observed: 4.66 ft at 9:15AM Apr 18, 2014Observed: 4.67 ft at 9:30AM Apr 18, 2014Observed: 4.67 ft at 9:45AM Apr 18, 2014Observed: 4.67 ft at 10:00AM Apr 18, 2014Observed: 4.67 ft at 10:15AM Apr 18, 2014Observed: 4.66 ft at 10:30AM Apr 18, 2014Observed: 4.67 ft at 10:45AM Apr 18, 2014Observed: 4.67 ft at 11:00AM Apr 18, 2014Observed: 4.67 ft at 11:15AM Apr 18, 2014Observed: 4.67 ft at 11:30AM Apr 18, 2014Observed: 4.67 ft at 11:45AM Apr 18, 2014Observed: 4.67 ft at 12:00PM Apr 18, 2014Observed: 4.66 ft at 12:15PM Apr 18, 2014Observed: 4.66 ft at 12:30PM Apr 18, 2014Observed: 4.66 ft at 12:45PM Apr 18, 2014Observed: 4.66 ft at 1:00PM Apr 18, 2014Observed: 4.65 ft at 1:15PM Apr 18, 2014Observed: 4.65 ft at 1:30PM Apr 18, 2014Observed: 4.65 ft at 1:45PM Apr 18, 2014Observed: 4.65 ft at 2:00PM Apr 18, 2014Observed: 4.65 ft at 2:15PM Apr 18, 2014Observed: 4.65 ft at 2:30PM Apr 18, 2014Observed: 4.65 ft at 2:45PM Apr 18, 2014Observed: 4.65 ft at 3:00PM Apr 18, 2014Observed: 4.65 ft at 3:15PM Apr 18, 2014Observed: 4.64 ft at 3:30PM Apr 18, 2014Observed: 4.64 ft at 3:45PM Apr 18, 2014Observed: 4.65 ft at 4:00PM Apr 18, 2014Observed: 4.65 ft at 4:15PM Apr 18, 2014Observed: 4.64 ft at 4:30PM Apr 18, 2014Observed: 4.64 ft at 4:45PM Apr 18, 2014Observed: 4.64 ft at 5:00PM Apr 18, 2014Observed: 4.64 ft at 5:15PM Apr 18, 2014Observed: 4.63 ft at 5:30PM Apr 18, 2014Observed: 4.63 ft at 5:45PM Apr 18, 2014Observed: 4.63 ft at 6:00PM Apr 18, 2014Observed: 4.62 ft at 6:15PM Apr 18, 2014Observed: 4.62 ft at 6:30PM Apr 18, 2014Observed: 4.62 ft at 6:45PM Apr 18, 2014Observed: 4.61 ft at 7:00PM Apr 18, 2014Observed: 4.62 ft at 7:15PM Apr 18, 2014Observed: 4.61 ft at 7:30PM Apr 18, 2014Observed: 4.61 ft at 7:45PM Apr 18, 2014Observed: 4.61 ft at 8:00PM Apr 18, 2014Observed: 4.61 ft at 8:15PM Apr 18, 2014Observed: 4.61 ft at 8:30PM Apr 18, 2014Observed: 4.6 ft at 8:45PM Apr 18, 2014Observed: 4.61 ft at 9:00PM Apr 18, 2014Observed: 4.6 ft at 9:15PM Apr 18, 2014Observed: 4.6 ft at 9:30PM Apr 18, 2014Observed: 4.6 ft at 9:45PM Apr 18, 2014Observed: 4.6 ft at 10:00PM Apr 18, 2014Observed: 4.6 ft at 10:15PM Apr 18, 2014Observed: 4.6 ft at 10:30PM Apr 18, 2014Observed: 4.6 ft at 10:45PM Apr 18, 2014Observed: 4.6 ft at 11:00PM Apr 18, 2014Observed: 4.6 ft at 11:15PM Apr 18, 2014Observed: 4.6 ft at 11:30PM Apr 18, 2014Observed: 4.59 ft at 11:45PM Apr 18, 2014Observed: 4.59 ft at 12:00AM Apr 19, 2014Observed: 4.59 ft at 12:15AM Apr 19, 2014Observed: 4.59 ft at 12:30AM Apr 19, 2014Observed: 4.59 ft at 12:45AM Apr 19, 2014Observed: 4.58 ft at 1:00AM Apr 19, 2014Observed: 4.58 ft at 1:15AM Apr 19, 2014Observed: 4.58 ft at 1:30AM Apr 19, 2014Observed: 4.58 ft at 1:45AM Apr 19, 2014Observed: 4.59 ft at 2:00AM Apr 19, 2014Observed: 4.58 ft at 2:15AM Apr 19, 2014Observed: 4.58 ft at 2:30AM Apr 19, 2014Observed: 4.58 ft at 2:45AM Apr 19, 2014Observed: 4.58 ft at 3:00AM Apr 19, 2014Observed: 4.58 ft at 3:15AM Apr 19, 2014Observed: 4.58 ft at 3:30AM Apr 19, 2014Observed: 4.58 ft at 3:45AM Apr 19, 2014Observed: 4.58 ft at 4:00AM Apr 19, 2014Observed: 4.57 ft at 4:15AM Apr 19, 2014Observed: 4.58 ft at 4:30AM Apr 19, 2014Observed: 4.57 ft at 4:45AM Apr 19, 2014Observed: 4.57 ft at 5:00AM Apr 19, 2014Observed: 4.57 ft at 5:15AM Apr 19, 2014Observed: 4.56 ft at 5:30AM Apr 19, 2014Observed: 4.56 ft at 5:45AM Apr 19, 2014Observed: 4.56 ft at 6:00AM Apr 19, 2014Observed: 4.56 ft at 6:15AM Apr 19, 2014Observed: 4.56 ft at 6:30AM Apr 19, 2014Observed: 4.56 ft at 6:45AM Apr 19, 2014Observed: 4.56 ft at 7:00AM Apr 19, 2014Observed: 4.56 ft at 7:15AM Apr 19, 2014Observed: 4.56 ft at 7:30AM Apr 19, 2014Observed: 4.56 ft at 7:45AM Apr 19, 2014Observed: 4.55 ft at 8:00AM Apr 19, 2014Observed: 4.55 ft at 8:15AM Apr 19, 2014Observed: 4.55 ft at 8:30AM Apr 19, 2014Observed: 4.55 ft at 8:45AM Apr 19, 2014Observed: 4.55 ft at 9:00AM Apr 19, 2014Observed: 4.55 ft at 9:15AM Apr 19, 2014Observed: 4.55 ft at 9:30AM Apr 19, 2014Observed: 4.55 ft at 9:45AM Apr 19, 2014Observed: 4.54 ft at 10:00AM Apr 19, 2014Observed: 4.55 ft at 10:15AM Apr 19, 2014Observed: 4.55 ft at 10:30AM Apr 19, 2014Observed: 4.54 ft at 10:45AM Apr 19, 2014Observed: 4.54 ft at 11:00AM Apr 19, 2014Observed: 4.54 ft at 11:15AM Apr 19, 2014Observed: 4.54 ft at 11:30AM Apr 19, 2014Observed: 4.54 ft at 11:45AM Apr 19, 2014Observed: 4.54 ft at 12:00PM Apr 19, 2014Observed: 4.55 ft at 12:15PM Apr 19, 2014Observed: 4.54 ft at 12:30PM Apr 19, 2014Observed: 4.54 ft at 12:45PM Apr 19, 2014Observed: 4.54 ft at 1:00PM Apr 19, 2014Observed: 4.53 ft at 1:15PM Apr 19, 2014Observed: 4.53 ft at 1:30PM Apr 19, 2014Observed: 4.52 ft at 1:45PM Apr 19, 2014Observed: 4.53 ft at 2:00PM Apr 19, 2014Observed: 4.52 ft at 2:15PM Apr 19, 2014Observed: 4.52 ft at 2:30PM Apr 19, 2014Observed: 4.52 ft at 2:45PM Apr 19, 2014Observed: 4.53 ft at 3:00PM Apr 19, 2014Observed: 4.53 ft at 3:15PM Apr 19, 2014Observed: 4.51 ft at 3:30PM Apr 19, 2014Observed: 4.52 ft at 3:45PM Apr 19, 2014Observed: 4.51 ft at 4:00PM Apr 19, 2014Observed: 4.51 ft at 4:15PM Apr 19, 2014Observed: 4.51 ft at 4:30PM Apr 19, 2014Observed: 4.52 ft at 4:45PM Apr 19, 2014Observed: 4.51 ft at 5:00PM Apr 19, 2014Observed: 4.51 ft at 5:15PM Apr 19, 2014Observed: 4.51 ft at 5:30PM Apr 19, 2014Observed: 4.51 ft at 5:45PM Apr 19, 2014Observed: 4.49 ft at 6:00PM Apr 19, 2014Observed: 4.49 ft at 6:15PM Apr 19, 2014Observed: 4.49 ft at 6:30PM Apr 19, 2014Observed: 4.49 ft at 6:45PM Apr 19, 2014Observed: 4.49 ft at 7:00PM Apr 19, 2014Observed: 4.49 ft at 7:15PM Apr 19, 2014Observed: 4.48 ft at 7:30PM Apr 19, 2014Observed: 4.48 ft at 7:45PM Apr 19, 2014Highest Forecast: 4.4 ft 2:00AM Apr 20, 2014Highest Forecast: 4.4 ft 8:00AM Apr 20, 2014Forecast: 4.3 ft 2:00PM Apr 20, 2014Forecast: 4.3 ft 8:00PM Apr 20, 2014Forecast: 4.3 ft 2:00AM Apr 21, 2014Forecast: 4.2 ft 8:00AM Apr 21, 2014Forecast: 4.2 ft 2:00PM Apr 21, 2014Forecast: 4.2 ft 8:00PM Apr 21, 2014Forecast: 4.2 ft 2:00AM Apr 22, 2014Forecast: 4.1 ft 8:00AM Apr 22, 2014USGS--Water Resources of the United StatesBRKM2(plotting HGIRG) Graph Created (8:35PM Apr 19, 2014)ObservedForecast (issued 9:32AM Apr 19)Latest observed value: 4.48 ft at 7:45 PM EDT 19-Apr-2014. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Potomac River near Washington DC (Little Falls) are issued routinely year-round.
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Upstream Gauge - at Edwards Ferry Upstream Gauge Downstream Gauge Downstream Gauge - at Georgetown / Wisconsin Ave
Flood Categories (in feet)
Major Flood Stage:14
Moderate Flood Stage:12
Flood Stage:10
Action Stage:5

Historical Crests
(1) 28.10 ft on 03/19/1936
(2) 26.88 ft on 10/17/1942
(3) 23.30 ft on 04/28/1937
(4) 22.03 ft on 06/24/1972
(5) 19.29 ft on 01/21/1996
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Low Water Records
Zoom Level: 13
Gauge Location
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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17 MOST OF THE C&O CANAL TOWPATH DOWNSTREAM OF EDWARDS FERRY IS FLOODED. TCHIFFELY MILL ROAD IS FLOODED DUE TO BACKWATER EFFECTS. WATER COVERS THE PARKING LOT AT THE ABNER CLOUD HOUSE IN THE DISTRICT OF COLUMBIA.
15 MOST OF THE C&O CANAL TOWPATH FROM EDWARDS FERRY DOWNSTREAM IS FLOODED. WATER COVERS THE LOCK AT EDWARDS FERRY. THE ACCESS ROAD TO VIOLETTES LOCK IS FLOODED. WATER IS FLOWING DOWN THE SIDEWALK NEAR THE GEORGETOWN VISITORS CENTER. THE FLETCHERS BOATHOUSE IS FLOODED.
14 SIGNIFICANT PORTIONS OF THE C&O CANAL TOWPATH ARE FLOODED. THE BLOCKHOUSE POINT PARK IS FLOODED.
13 SIGNIFICANT PORTIONS OF THE C&O TOWPATH ARE FLOODED.
12 THE C&O CANAL OVERFLOWS AT THE GREAT FALLS TAVERN. WATER COVERS THE TOWPATH IN MANY AREAS.
11.5 WATER COVERS THE TOWPATH BETWEEN THE WASHINGTON AQUEDUCT DAM AND SWAINS LOCK...MILEPOSTS 15 AND 16.
11 WATER COVERS THE TOWPATH BETWEEN SWAINS LOCK AND PENNYFIELD LOCK...MILEPOSTS 17 TO 19. THE BASEMENTS OF THE EDWARDS FERRY LOCKHOUSE AND RILEYS LOCKHOUSE ARE FLOODED.
10 WATER BEGINS TO OVERFLOW THE BANKS INTO LOW LYING AREAS ON THE MARYLAND SIDE OF THE RIVER NEAR LITTLE FALLS. UPSTREAM...THE PARKING LOT AT EDWARDS FERRY IS COMPLETELY COVERED BY WATER. THE PARKING LOT AT SENECA IS PARTIALLY COVERED BY WATER.
8.5 WATER REACHES THE BOAT RAMP AND LOWER PARKING AREA AT EDWARDS FERRY.
7 WATER REACHES THE WHITES FERRY AREA IN MONTGOMERY COUNTY MARYLAND. FERRY SERVICE MAY BE SUSPENDED.
5.5 WATER BEGINS TO AFFECT PORTIONS OF THE BILLY GOAT TRAIL BETWEEN GREAT FALLS AND CARDEROCK. THESE TRAILS MAY BE CLOSED.
4.5 THE RIVER REACHES DANGER LEVEL FOR BOATERS...AS DEFINED BY THE STATE OF MARYLAND. CONDITIONS FOR BOATING WILL BE EXTREMELY HAZARDOUS.
3.5 THE RIVER REACHES CAUTION LEVEL FOR BOATERS...AS DEFINED BY THE STATE OF MARYLAND. FAST MOVING WATER AND CHANGING CURRENTS WILL BE EXPERIENCED.
About This Location Collapse

Latitude: 38.949722° N, Longitude: 77.127778° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 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 37.95 ft 47.95 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:

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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: 8-Apr-2014 8:38 AM
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