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Hydrograph River at a Glance Download
Potomac River at Dam Number Five above Williamsport Stage (ft)Observed: 0.4 ft at 6:10AM Apr 14, 2024Observed: 0.4 ft at 6:20AM Apr 14, 2024Observed: 0.4 ft at 6:30AM Apr 14, 2024Observed: 0.39 ft at 6:40AM Apr 14, 2024Observed: 0.39 ft at 6:50AM Apr 14, 2024Observed: 0.4 ft at 7:00AM Apr 14, 2024Observed: 0.4 ft at 7:10AM Apr 14, 2024Observed: 0.4 ft at 7:20AM Apr 14, 2024Observed: 0.4 ft at 7:30AM Apr 14, 2024Observed: 0.4 ft at 7:40AM Apr 14, 2024Observed: 0.4 ft at 7:50AM Apr 14, 2024Observed: 0.4 ft at 8:00AM Apr 14, 2024Observed: 0.4 ft at 8:10AM Apr 14, 2024Highest Observation: 0.41 ft at 8:20AM Apr 14, 2024Highest Observation: 0.41 ft at 8:40AM Apr 14, 2024Highest Observation: 0.41 ft at 8:50AM Apr 14, 2024Highest Observation: 0.41 ft at 9:10AM Apr 14, 2024Highest Observation: 0.41 ft at 9:20AM Apr 14, 2024Highest Observation: 0.41 ft at 9:30AM Apr 14, 2024Highest Observation: 0.41 ft at 9:40AM Apr 14, 2024Highest Observation: 0.41 ft at 9:50AM Apr 14, 2024Highest Observation: 0.41 ft at 10:00AM Apr 14, 2024Highest Observation: 0.41 ft at 10:10AM Apr 14, 2024Highest Observation: 0.41 ft at 10:20AM Apr 14, 2024Highest Observation: 0.41 ft at 10:30AM Apr 14, 2024Highest Observation: 0.41 ft at 10:40AM Apr 14, 2024Highest Observation: 0.41 ft at 10:50AM Apr 14, 2024Observed: 0.4 ft at 11:00AM Apr 14, 2024Observed: 0.4 ft at 11:10AM Apr 14, 2024Observed: 0.4 ft at 11:20AM Apr 14, 2024Observed: 0.4 ft at 11:30AM Apr 14, 2024Observed: 0.4 ft at 11:40AM Apr 14, 2024Observed: 0.4 ft at 11:50AM Apr 14, 2024Observed: 0.4 ft at 12:00PM Apr 14, 2024Observed: 0.39 ft at 12:10PM Apr 14, 2024Observed: 0.39 ft at 12:20PM Apr 14, 2024Observed: 0.4 ft at 12:30PM Apr 14, 2024Observed: 0.39 ft at 12:40PM Apr 14, 2024Observed: 0.39 ft at 1:10PM Apr 14, 2024Observed: 0.39 ft at 1:20PM Apr 14, 2024Observed: 0.39 ft at 1:40PM Apr 14, 2024Observed: 0.39 ft at 2:10PM Apr 14, 2024Observed: 0.39 ft at 2:20PM Apr 14, 2024Observed: 0.39 ft at 2:30PM Apr 14, 2024Observed: 0.39 ft at 2:40PM Apr 14, 2024Observed: 0.39 ft at 2:50PM Apr 14, 2024Observed: 0.39 ft at 3:00PM Apr 14, 2024Observed: 0.39 ft at 3:10PM Apr 14, 2024Observed: 0.39 ft at 3:20PM Apr 14, 2024Observed: 0.39 ft at 3:30PM Apr 14, 2024Observed: 0.39 ft at 3:40PM Apr 14, 2024Observed: 0.38 ft at 4:00PM Apr 14, 2024Observed: 0.39 ft at 4:10PM Apr 14, 2024Observed: 0.38 ft at 4:20PM Apr 14, 2024Observed: 0.38 ft at 4:30PM Apr 14, 2024Observed: 0.38 ft at 4:40PM Apr 14, 2024Observed: 0.38 ft at 4:50PM Apr 14, 2024Observed: 0.38 ft at 5:00PM Apr 14, 2024Observed: 0.38 ft at 5:10PM Apr 14, 2024Observed: 0.38 ft at 5:20PM Apr 14, 2024Observed: 0.38 ft at 5:30PM Apr 14, 2024Observed: 0.38 ft at 5:50PM Apr 14, 2024Observed: 0.38 ft at 6:10PM Apr 14, 2024Observed: 0.38 ft at 6:20PM Apr 14, 2024Observed: 0.38 ft at 6:30PM Apr 14, 2024Observed: 0.38 ft at 6:50PM Apr 14, 2024Observed: 0.38 ft at 7:00PM Apr 14, 2024Observed: 0.38 ft at 7:10PM Apr 14, 2024Observed: 0.38 ft at 7:20PM Apr 14, 2024Observed: 0.38 ft at 7:30PM Apr 14, 2024Observed: 0.38 ft at 7:40PM Apr 14, 2024Observed: 0.38 ft at 7:50PM Apr 14, 2024Observed: 0.38 ft at 8:00PM Apr 14, 2024Observed: 0.38 ft at 8:10PM Apr 14, 2024Observed: 0.38 ft at 8:30PM Apr 14, 2024Observed: 0.38 ft at 8:40PM Apr 14, 2024Observed: 0.38 ft at 8:50PM Apr 14, 2024Observed: 0.38 ft at 9:00PM Apr 14, 2024Observed: 0.39 ft at 9:10PM Apr 14, 2024Observed: 0.39 ft at 9:20PM Apr 14, 2024Observed: 0.39 ft at 9:30PM Apr 14, 2024Observed: 0.39 ft at 9:40PM Apr 14, 2024Observed: 0.39 ft at 9:50PM Apr 14, 2024Observed: 0.38 ft at 10:00PM Apr 14, 2024Observed: 0.39 ft at 10:10PM Apr 14, 2024Observed: 0.39 ft at 10:20PM Apr 14, 2024Observed: 0.39 ft at 10:30PM Apr 14, 2024Observed: 0.39 ft at 10:40PM Apr 14, 2024Observed: 0.39 ft at 10:50PM Apr 14, 2024Observed: 0.39 ft at 11:00PM Apr 14, 2024Observed: 0.39 ft at 11:10PM Apr 14, 2024Observed: 0.38 ft at 11:40PM Apr 14, 2024Observed: 0.39 ft at 11:50PM Apr 14, 2024Observed: 0.39 ft at 12:00AM Apr 15, 2024Observed: 0.39 ft at 12:10AM Apr 15, 2024Observed: 0.38 ft at 12:30AM Apr 15, 2024Observed: 0.39 ft at 2:40AM Apr 15, 2024Observed: 0.39 ft at 2:50AM Apr 15, 2024Observed: 0.39 ft at 3:00AM Apr 15, 2024Observed: 0.39 ft at 3:10AM Apr 15, 2024Observed: 0.39 ft at 3:20AM Apr 15, 2024Observed: 0.39 ft at 3:30AM Apr 15, 2024Observed: 0.39 ft at 4:00AM Apr 15, 2024Observed: 0.39 ft at 4:10AM Apr 15, 2024Observed: 0.38 ft at 4:20AM Apr 15, 2024Observed: 0.39 ft at 4:30AM Apr 15, 2024Observed: 0.39 ft at 4:40AM Apr 15, 2024Observed: 0.39 ft at 4:50AM Apr 15, 2024Observed: 0.39 ft at 5:00AM Apr 15, 2024Observed: 0.39 ft at 5:10AM Apr 15, 2024Observed: 0.39 ft at 5:20AM Apr 15, 2024Observed: 0.39 ft at 5:30AM Apr 15, 2024Observed: 0.39 ft at 5:40AM Apr 15, 2024Observed: 0.39 ft at 5:50AM Apr 15, 2024Observed: 0.39 ft at 6:00AM Apr 15, 2024Observed: 0.39 ft at 6:10AM Apr 15, 2024Observed: 0.39 ft at 6:30AM Apr 15, 2024Observed: 0.39 ft at 6:40AM Apr 15, 2024Observed: 0.39 ft at 6:50AM Apr 15, 2024Observed: 0.39 ft at 7:00AM Apr 15, 2024Observed: 0.39 ft at 7:10AM Apr 15, 2024Observed: 0.39 ft at 7:20AM Apr 15, 2024Observed: 0.39 ft at 7:30AM Apr 15, 2024Observed: 0.39 ft at 7:40AM Apr 15, 2024Observed: 0.39 ft at 7:50AM Apr 15, 2024Observed: 0.39 ft at 8:00AM Apr 15, 2024Observed: 0.39 ft at 8:20AM Apr 15, 2024Observed: 0.39 ft at 8:30AM Apr 15, 2024Observed: 0.39 ft at 8:40AM Apr 15, 2024Observed: 0.39 ft at 9:00AM Apr 15, 2024Observed: 0.39 ft at 9:10AM Apr 15, 2024Observed: 0.39 ft at 9:20AM Apr 15, 2024Observed: 0.39 ft at 9:30AM Apr 15, 2024Observed: 0.39 ft at 9:40AM Apr 15, 2024Observed: 0.39 ft at 9:50AM Apr 15, 2024Observed: 0.39 ft at 10:00AM Apr 15, 2024Observed: 0.39 ft at 10:10AM Apr 15, 2024Observed: 0.39 ft at 10:20AM Apr 15, 2024Observed: 0.39 ft at 10:30AM Apr 15, 2024Observed: 0.38 ft at 10:50AM Apr 15, 2024Observed: 0.38 ft at 11:10AM Apr 15, 2024Observed: 0.38 ft at 11:30AM Apr 15, 2024Observed: 0.38 ft at 11:40AM Apr 15, 2024Observed: 0.38 ft at 11:50AM Apr 15, 2024Observed: 0.38 ft at 12:00PM Apr 15, 2024Observed: 0.38 ft at 12:10PM Apr 15, 2024Observed: 0.38 ft at 12:20PM Apr 15, 2024Observed: 0.38 ft at 12:30PM Apr 15, 2024Observed: 0.38 ft at 12:40PM Apr 15, 2024Observed: 0.38 ft at 12:50PM Apr 15, 2024Observed: 0.38 ft at 1:00PM Apr 15, 2024Observed: 0.38 ft at 1:30PM Apr 15, 2024Observed: 0.38 ft at 1:40PM Apr 15, 2024Observed: 0.38 ft at 1:50PM Apr 15, 2024Observed: 0.38 ft at 2:00PM Apr 15, 2024Observed: 0.38 ft at 2:20PM Apr 15, 2024Observed: 0.38 ft at 2:30PM Apr 15, 2024Observed: 0.38 ft at 2:40PM Apr 15, 2024Observed: 0.38 ft at 2:50PM Apr 15, 2024Observed: 0.38 ft at 3:00PM Apr 15, 2024Observed: 0.38 ft at 3:10PM Apr 15, 2024Observed: 0.38 ft at 3:20PM Apr 15, 2024Observed: 0.38 ft at 3:30PM Apr 15, 2024Observed: 0.38 ft at 3:40PM Apr 15, 2024Observed: 0.38 ft at 3:50PM Apr 15, 2024Observed: 0.38 ft at 4:00PM Apr 15, 2024Observed: 0.38 ft at 4:10PM Apr 15, 2024Observed: 0.38 ft at 4:20PM Apr 15, 2024Observed: 0.38 ft at 4:30PM Apr 15, 2024Observed: 0.38 ft at 4:40PM Apr 15, 2024Observed: 0.38 ft at 4:50PM Apr 15, 2024Observed: 0.38 ft at 5:00PM Apr 15, 2024Observed: 0.38 ft at 5:10PM Apr 15, 2024Observed: 0.38 ft at 5:20PM Apr 15, 2024Observed: 0.38 ft at 5:30PM Apr 15, 2024Observed: 0.38 ft at 5:40PM Apr 15, 2024Observed: 0.38 ft at 5:50PM Apr 15, 2024Observed: 0.38 ft at 6:00PM Apr 15, 2024Observed: 0.38 ft at 6:10PM Apr 15, 2024Observed: 0.38 ft at 6:20PM Apr 15, 2024Observed: 0.38 ft at 6:30PM Apr 15, 2024Observed: 0.38 ft at 6:40PM Apr 15, 2024Observed: 0.38 ft at 6:50PM Apr 15, 2024Observed: 0.38 ft at 7:00PM Apr 15, 2024Observed: 0.38 ft at 7:10PM Apr 15, 2024Observed: 0.38 ft at 7:20PM Apr 15, 2024Observed: 0.38 ft at 7:30PM Apr 15, 2024Observed: 0.38 ft at 7:40PM Apr 15, 2024Observed: 0.38 ft at 7:50PM Apr 15, 2024Observed: 0.38 ft at 8:00PM Apr 15, 2024Observed: 0.38 ft at 8:10PM Apr 15, 2024Observed: 0.38 ft at 8:20PM Apr 15, 2024Observed: 0.38 ft at 8:30PM Apr 15, 2024Observed: 0.38 ft at 8:40PM Apr 15, 2024Observed: 0.38 ft at 8:50PM Apr 15, 2024Observed: 0.38 ft at 9:10PM Apr 15, 2024Observed: 0.38 ft at 9:20PM Apr 15, 2024Observed: 0.38 ft at 9:40PM Apr 15, 2024Observed: 0.38 ft at 9:50PM Apr 15, 2024Observed: 0.38 ft at 10:00PM Apr 15, 2024Observed: 0.38 ft at 10:10PM Apr 15, 2024Observed: 0.38 ft at 10:20PM Apr 15, 2024Observed: 0.38 ft at 10:40PM Apr 15, 2024Observed: 0.38 ft at 10:50PM Apr 15, 2024Observed: 0.38 ft at 11:00PM Apr 15, 2024Observed: 0.38 ft at 11:20PM Apr 15, 2024Observed: 0.39 ft at 11:30PM Apr 15, 2024Observed: 0.38 ft at 11:40PM Apr 15, 2024Observed: 0.38 ft at 11:50PM Apr 15, 2024Observed: 0.38 ft at 12:00AM Apr 16, 2024Observed: 0.38 ft at 12:20AM Apr 16, 2024Observed: 0.38 ft at 12:30AM Apr 16, 2024Observed: 0.38 ft at 12:40AM Apr 16, 2024Observed: 0.38 ft at 12:50AM Apr 16, 2024Observed: 0.38 ft at 1:00AM Apr 16, 2024Observed: 0.38 ft at 1:10AM Apr 16, 2024Observed: 0.38 ft at 1:20AM Apr 16, 2024Observed: 0.38 ft at 1:30AM Apr 16, 2024Observed: 0.38 ft at 1:40AM Apr 16, 2024Observed: 0.38 ft at 1:50AM Apr 16, 2024Observed: 0.38 ft at 2:00AM Apr 16, 2024Observed: 0.38 ft at 2:10AM Apr 16, 2024Observed: 0.38 ft at 2:20AM Apr 16, 2024Observed: 0.38 ft at 2:30AM Apr 16, 2024Observed: 0.38 ft at 2:40AM Apr 16, 2024Observed: 0.38 ft at 2:50AM Apr 16, 2024Observed: 0.38 ft at 3:00AM Apr 16, 2024Observed: 0.38 ft at 3:10AM Apr 16, 2024Observed: 0.38 ft at 3:20AM Apr 16, 2024Observed: 0.38 ft at 3:30AM Apr 16, 2024Observed: 0.38 ft at 3:50AM Apr 16, 2024Observed: 0.38 ft at 4:00AM Apr 16, 2024Observed: 0.38 ft at 4:20AM Apr 16, 2024Observed: 0.38 ft at 4:40AM Apr 16, 2024Observed: 0.38 ft at 4:50AM Apr 16, 2024Observed: 0.38 ft at 5:00AM Apr 16, 2024Observed: 0.38 ft at 5:10AM Apr 16, 2024Observed: 0.38 ft at 5:20AM Apr 16, 2024Observed: 0.38 ft at 5:30AM Apr 16, 2024Observed: 0.38 ft at 5:40AM Apr 16, 2024Observed: 0.38 ft at 5:50AM Apr 16, 2024Observed: 0.38 ft at 6:00AM Apr 16, 2024Observed: 0.38 ft at 6:10AM Apr 16, 2024Observed: 0.38 ft at 6:20AM Apr 16, 2024Observed: 0.38 ft at 6:30AM Apr 16, 2024Observed: 0.38 ft at 6:40AM Apr 16, 2024Observed: 0.38 ft at 6:50AM Apr 16, 2024Observed: 0.38 ft at 7:00AM Apr 16, 2024Observed: 0.38 ft at 7:50AM Apr 16, 2024Observed: 0.38 ft at 8:00AM Apr 16, 2024Observed: 0.38 ft at 8:10AM Apr 16, 2024Observed: 0.38 ft at 8:20AM Apr 16, 2024Observed: 0.38 ft at 8:30AM Apr 16, 2024Observed: 0.38 ft at 8:40AM Apr 16, 2024Observed: 0.38 ft at 8:50AM Apr 16, 2024Observed: 0.38 ft at 9:00AM Apr 16, 2024Observed: 0.38 ft at 9:10AM Apr 16, 2024Observed: 0.38 ft at 9:20AM Apr 16, 2024Observed: 0.38 ft at 9:30AM Apr 16, 2024Observed: 0.38 ft at 9:40AM Apr 16, 2024Observed: 0.38 ft at 10:00AM Apr 16, 2024Observed: 0.38 ft at 10:10AM Apr 16, 2024Observed: 0.38 ft at 10:20AM Apr 16, 2024Observed: 0.38 ft at 10:40AM Apr 16, 2024Observed: 0.38 ft at 10:50AM Apr 16, 2024Observed: 0.38 ft at 11:00AM Apr 16, 2024Observed: 0.38 ft at 11:10AM Apr 16, 2024Observed: 0.38 ft at 11:20AM Apr 16, 2024Observed: 0.38 ft at 11:30AM Apr 16, 2024Observed: 0.38 ft at 11:40AM Apr 16, 2024Observed: 0.38 ft at 11:50AM Apr 16, 2024Observed: 0.38 ft at 12:00PM Apr 16, 2024Observed: 0.38 ft at 12:10PM Apr 16, 2024Observed: 0.38 ft at 12:30PM Apr 16, 2024Observed: 0.38 ft at 12:40PM Apr 16, 2024Observed: 0.38 ft at 12:50PM Apr 16, 2024Observed: 0.38 ft at 1:00PM Apr 16, 2024Observed: 0.38 ft at 6:30AM Apr 17, 2024Observed: 0.38 ft at 6:40AM Apr 17, 2024Observed: 0.38 ft at 6:50AM Apr 17, 2024Observed: 0.38 ft at 7:00AM Apr 17, 2024Observed: 0.38 ft at 7:10AM Apr 17, 2024Observed: 0.38 ft at 7:20AM Apr 17, 2024Observed: 0.38 ft at 7:30AM Apr 17, 2024Observed: 0.38 ft at 7:40AM Apr 17, 2024Observed: 0.38 ft at 8:00AM Apr 17, 2024Observed: 0.38 ft at 8:20AM Apr 17, 2024Observed: 0.38 ft at 8:30AM Apr 17, 2024Observed: 0.38 ft at 8:40AM Apr 17, 2024Observed: 0.38 ft at 8:50AM Apr 17, 2024Observed: 0.38 ft at 9:00AM Apr 17, 2024Observed: 0.38 ft at 9:10AM Apr 17, 2024Observed: 0.38 ft at 9:20AM Apr 17, 2024Observed: 0.38 ft at 9:30AM Apr 17, 2024Observed: 0.38 ft at 9:40AM Apr 17, 2024Observed: 0.38 ft at 9:50AM Apr 17, 2024Observed: 0.38 ft at 10:00AM Apr 17, 2024Observed: 0.38 ft at 10:10AM Apr 17, 2024Observed: 0.38 ft at 10:20AM Apr 17, 2024Observed: 0.38 ft at 10:30AM Apr 17, 2024Observed: 0.38 ft at 10:40AM Apr 17, 2024Observed: 0.38 ft at 10:50AM Apr 17, 2024Observed: 0.38 ft at 11:00AM Apr 17, 2024Observed: 0.38 ft at 11:20AM Apr 17, 2024Observed: 0.38 ft at 11:30AM Apr 17, 2024Observed: 0.38 ft at 11:40AM Apr 17, 2024Observed: 0.38 ft at 11:50AM Apr 17, 2024Observed: 0.38 ft at 12:00PM Apr 17, 2024Observed: 0.38 ft at 12:10PM Apr 17, 2024Observed: 0.38 ft at 12:20PM Apr 17, 2024Observed: 0.38 ft at 12:30PM Apr 17, 2024Observed: 0.38 ft at 12:40PM Apr 17, 2024Observed: 0.38 ft at 12:50PM Apr 17, 2024Observed: 0.38 ft at 1:00PM Apr 17, 2024Observed: 0.38 ft at 1:10PM Apr 17, 2024Observed: 0.38 ft at 1:20PM Apr 17, 2024Observed: 0.38 ft at 1:30PM Apr 17, 2024Observed: 0.38 ft at 1:40PM Apr 17, 2024Observed: 0.38 ft at 1:50PM Apr 17, 2024Observed: 0.38 ft at 2:00PM Apr 17, 2024Observed: 0.38 ft at 2:10PM Apr 17, 2024Observed: 0.38 ft at 2:20PM Apr 17, 2024Observed: 0.38 ft at 2:40PM Apr 17, 2024Observed: 0.38 ft at 2:50PM Apr 17, 2024Observed: 0.38 ft at 3:00PM Apr 17, 2024Observed: 0.38 ft at 3:10PM Apr 17, 2024Observed: 0.38 ft at 3:20PM Apr 17, 2024Observed: 0.38 ft at 3:30PM Apr 17, 2024Observed: 0.38 ft at 3:50PM Apr 17, 2024Observed: 0.38 ft at 4:00PM Apr 17, 2024Observed: 0.38 ft at 4:10PM Apr 17, 2024Observed: 0.38 ft at 4:30PM Apr 17, 2024Observed: 0.38 ft at 4:40PM Apr 17, 2024Observed: 0.38 ft at 4:50PM Apr 17, 2024Observed: 0.38 ft at 5:00PM Apr 17, 2024Observed: 0.38 ft at 5:10PM Apr 17, 2024Observed: 0.38 ft at 5:20PM Apr 17, 2024Observed: 0.38 ft at 5:30PM Apr 17, 2024Observed: 0.38 ft at 5:40PM Apr 17, 2024Observed: 0.38 ft at 6:00PM Apr 17, 2024Observed: 0.38 ft at 6:10PM Apr 17, 2024Observed: 0.38 ft at 6:30PM Apr 17, 2024Observed: 0.38 ft at 6:40PM Apr 17, 2024Observed: 0.38 ft at 6:50PM Apr 17, 2024Observed: 0.38 ft at 7:00PM Apr 17, 2024Observed: 0.38 ft at 7:10PM Apr 17, 2024Observed: 0.38 ft at 7:30PM Apr 17, 2024Observed: 0.38 ft at 7:40PM Apr 17, 2024Observed: 0.38 ft at 7:50PM Apr 17, 2024Observed: 0.38 ft at 8:00PM Apr 17, 2024Observed: 0.38 ft at 8:20PM Apr 17, 2024Observed: 0.38 ft at 8:30PM Apr 17, 2024Observed: 0.38 ft at 8:40PM Apr 17, 2024Observed: 0.38 ft at 8:50PM Apr 17, 2024Observed: 0.38 ft at 9:00PM Apr 17, 2024Observed: 0.38 ft at 9:10PM Apr 17, 2024Observed: 0.38 ft at 9:20PM Apr 17, 2024Observed: 0.38 ft at 9:30PM Apr 17, 2024Observed: 0.38 ft at 9:40PM Apr 17, 2024Observed: 0.38 ft at 10:00PM Apr 17, 2024Observed: 0.38 ft at 10:10PM Apr 17, 2024Observed: 0.38 ft at 10:20PM Apr 17, 2024Observed: 0.38 ft at 10:30PM Apr 17, 2024Observed: 0.38 ft at 10:50PM Apr 17, 2024Observed: 0.38 ft at 11:00PM Apr 17, 2024Observed: 0.38 ft at 11:10PM Apr 17, 2024Observed: 0.38 ft at 11:20PM Apr 17, 2024Observed: 0.38 ft at 11:30PM Apr 17, 2024Observed: 0.38 ft at 11:40PM Apr 17, 2024Observed: 0.38 ft at 11:50PM Apr 17, 2024Observed: 0.38 ft at 12:00AM Apr 18, 2024Observed: 0.38 ft at 12:10AM Apr 18, 2024Observed: 0.38 ft at 12:20AM Apr 18, 2024Observed: 0.38 ft at 12:30AM Apr 18, 2024Observed: 0.38 ft at 12:40AM Apr 18, 2024Observed: 0.38 ft at 12:50AM Apr 18, 2024Observed: 0.38 ft at 1:00AM Apr 18, 2024Observed: 0.38 ft at 1:20AM Apr 18, 2024Observed: 0.38 ft at 1:30AM Apr 18, 2024Observed: 0.38 ft at 1:40AM Apr 18, 2024Observed: 0.38 ft at 1:50AM Apr 18, 2024Observed: 0.38 ft at 2:00AM Apr 18, 2024Observed: 0.38 ft at 2:10AM Apr 18, 2024Observed: 0.38 ft at 2:20AM Apr 18, 2024Observed: 0.38 ft at 4:10AM Apr 18, 2024Observed: 0.38 ft at 5:10AM Apr 18, 2024Observed: 0.38 ft at 6:10AM Apr 18, 2024Observed: 0.38 ft at 7:10AM Apr 18, 2024Observed: 0.39 ft at 8:10AM Apr 18, 2024Observed: 0.39 ft at 9:00AM Apr 18, 2024Observed: 0.39 ft at 9:10AM Apr 18, 2024Observed: 0.39 ft at 9:20AM Apr 18, 2024Observed: 0.39 ft at 9:30AM Apr 18, 2024Observed: 0.39 ft at 9:40AM Apr 18, 2024Observed: 0.38 ft at 9:50AM Apr 18, 2024Observed: 0.38 ft at 10:00AM Apr 18, 2024Observed: 0.38 ft at 10:10AM Apr 18, 2024Observed: 0.38 ft at 10:20AM Apr 18, 2024Observed: 0.38 ft at 10:30AM Apr 18, 2024Observed: 0.38 ft at 10:40AM Apr 18, 2024Observed: 0.38 ft at 10:50AM Apr 18, 2024Observed: 0.38 ft at 11:00AM Apr 18, 2024Observed: 0.38 ft at 11:10AM Apr 18, 2024Observed: 0.38 ft at 11:20AM Apr 18, 2024Observed: 0.38 ft at 11:30AM Apr 18, 2024Observed: 0.38 ft at 11:40AM Apr 18, 2024Observed: 0.38 ft at 11:50AM Apr 18, 2024Observed: 0.38 ft at 12:00PM Apr 18, 2024Observed: 0.38 ft at 12:10PM Apr 18, 2024Observed: 0.38 ft at 12:20PM Apr 18, 2024Observed: 0.38 ft at 12:30PM Apr 18, 2024Observed: 0.38 ft at 12:40PM Apr 18, 2024Observed: 0.38 ft at 1:00PM Apr 18, 2024Observed: 0.38 ft at 1:20PM Apr 18, 2024Observed: 0.38 ft at 1:30PM Apr 18, 2024Observed: 0.38 ft at 1:40PM Apr 18, 2024Observed: 0.38 ft at 2:20PM Apr 18, 2024Observed: 0.38 ft at 2:30PM Apr 18, 2024Observed: 0.38 ft at 2:40PM Apr 18, 2024Observed: 0.38 ft at 2:50PM Apr 18, 2024Observed: 0.38 ft at 3:00PM Apr 18, 2024Observed: 0.38 ft at 3:10PM Apr 18, 2024Observed: 0.38 ft at 3:20PM Apr 18, 2024Observed: 0.38 ft at 3:30PM Apr 18, 2024Observed: 0.38 ft at 4:00PM Apr 18, 2024Observed: 0.38 ft at 4:20PM Apr 18, 2024Observed: 0.38 ft at 4:40PM Apr 18, 2024Observed: 0.37 ft at 4:50PM Apr 18, 2024Observed: 0.37 ft at 5:00PM Apr 18, 2024Observed: 0.38 ft at 5:10PM Apr 18, 2024Observed: 0.37 ft at 5:20PM Apr 18, 2024Observed: 0.38 ft at 5:40PM Apr 18, 2024Observed: 0.37 ft at 5:50PM Apr 18, 2024Observed: 0.37 ft at 6:00PM Apr 18, 2024Observed: 0.37 ft at 6:20PM Apr 18, 2024Observed: 0.37 ft at 6:30PM Apr 18, 2024Observed: 0.37 ft at 6:40PM Apr 18, 2024Observed: 0.37 ft at 6:50PM Apr 18, 2024Observed: 0.38 ft at 7:00PM Apr 18, 2024Observed: 0.37 ft at 7:10PM Apr 18, 2024Observed: 0.37 ft at 7:20PM Apr 18, 2024Observed: 0.37 ft at 7:30PM Apr 18, 2024Observed: 0.37 ft at 7:40PM Apr 18, 2024Observed: 0.37 ft at 7:50PM Apr 18, 2024Observed: 0.37 ft at 8:00PM Apr 18, 2024Observed: 0.38 ft at 8:10PM Apr 18, 2024Observed: 0.37 ft at 8:20PM Apr 18, 2024Observed: 0.37 ft at 8:30PM Apr 18, 2024Observed: 0.38 ft at 8:40PM Apr 18, 2024Observed: 0.38 ft at 8:50PM Apr 18, 2024Observed: 0.38 ft at 9:00PM Apr 18, 2024Observed: 0.38 ft at 9:10PM Apr 18, 2024Observed: 0.38 ft at 9:20PM Apr 18, 2024Observed: 0.38 ft at 9:30PM Apr 18, 2024Observed: 0.38 ft at 9:40PM Apr 18, 2024Observed: 0.38 ft at 9:50PM Apr 18, 2024Observed: 0.38 ft at 10:00PM Apr 18, 2024Observed: 0.38 ft at 10:10PM Apr 18, 2024Observed: 0.38 ft at 10:20PM Apr 18, 2024Observed: 0.38 ft at 10:30PM Apr 18, 2024Observed: 0.38 ft at 10:50PM Apr 18, 2024Observed: 0.38 ft at 11:00PM Apr 18, 2024Observed: 0.37 ft at 11:20PM Apr 18, 2024Observed: 0.37 ft at 11:30PM Apr 18, 2024Observed: 0.38 ft at 11:40PM Apr 18, 2024Observed: 0.38 ft at 11:50PM Apr 18, 2024Observed: 0.38 ft at 12:00AM Apr 19, 2024Observed: 0.38 ft at 12:10AM Apr 19, 2024Observed: 0.37 ft at 12:20AM Apr 19, 2024Observed: 0.38 ft at 12:30AM Apr 19, 2024Observed: 0.38 ft at 12:40AM Apr 19, 2024Observed: 0.38 ft at 12:50AM Apr 19, 2024Observed: 0.38 ft at 1:00AM Apr 19, 2024Observed: 0.38 ft at 1:20AM Apr 19, 2024Observed: 0.38 ft at 1:30AM Apr 19, 2024Observed: 0.38 ft at 1:40AM Apr 19, 2024Observed: 0.38 ft at 1:50AM Apr 19, 2024Observed: 0.38 ft at 2:00AM Apr 19, 2024Observed: 0.38 ft at 2:20AM Apr 19, 2024Observed: 0.38 ft at 2:30AM Apr 19, 2024Observed: 0.38 ft at 2:40AM Apr 19, 2024Observed: 0.38 ft at 2:50AM Apr 19, 2024Observed: 0.38 ft at 3:00AM Apr 19, 2024Observed: 0.38 ft at 3:20AM Apr 19, 2024Observed: 0.38 ft at 3:30AM Apr 19, 2024Observed: 0.38 ft at 3:40AM Apr 19, 2024Observed: 0.38 ft at 3:50AM Apr 19, 2024Observed: 0.38 ft at 4:10AM Apr 19, 2024Observed: 0.38 ft at 4:20AM Apr 19, 2024Observed: 0.38 ft at 4:30AM Apr 19, 2024Observed: 0.38 ft at 4:40AM Apr 19, 2024Observed: 0.38 ft at 4:50AM Apr 19, 2024Observed: 0.38 ft at 5:00AM Apr 19, 2024Observed: 0.38 ft at 5:20AM Apr 19, 2024Observed: 0.38 ft at 5:30AM Apr 19, 2024PBPV2(plotting HGIRR) Graph Created (5:41AM Apr 19, 2024)ObservedLatest observed value: 0.38 ft at 5:30 AM EDT 19-Apr-2024. Flood Stage is 6.5 ft
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Gauge awaiting repair - automated readings are not available at this time.

NOTE: Forecasts for the Potomac River at Dam Number Five above Williamsport are issued routinely year-round.

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Upstream Gauge - at Hancock Upstream Gauge Downstream Gauge Downstream Gauge - at Williamsport
Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 24
Flood Stage: 21
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 21.32 ft on 05/08/2022 (P)

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.32 ft on 05/08/2022 (P)

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
31 Floodwaters enter the Williamsport Cushwa Visitor Center.
29 The vast majority of the C&O Canal towpath is under water.
27 Widespread flooding is ongoing at River Bend and Potomac Fish & Game Club. Three feet of water are inside the first floor of the powerhouse at Dam Number Five. Water is approaching outbuildings at the Cushwa Basin with the parking lot flooded.
25 Structures are flooded at both Potomac Fish & Game Club and River Bend.
24 Water reaches the first floor of the powerhouse at Dam Number Five, with relatively widespread flooding ongoing at River Bend.
23 Lower portions of the Potomac Fish & Game Club property begin to flood.
22 Water reaches the gate of the boat ramp at River Bend and starts to come overbank in a larger area. Backwater from the Potomac comes up the Conococheague, causing flooding of the parking area at Cushwa Basin. Significant portions of the C&O Canal Towpath are flooded, including the Four Locks area parking lot.
21 Water reaches non-permanent structures in the River Bend RV Community, including RVs and outbuildings.
20 The private drive leading to Dam Number Five on the West Virginia side of the river begins to flood. The entire Four Locks parking lot for the C&O Canal is flooded, along with portions of the towpath and low-lying land within the River Bend RV Community.
18 Water begins to come over the bank in low-lying portions of the River Bend RV Community. Property owners should consider moving items that are close to the river. Portions of the C&O Canal Towpath and Four Locks area parking lot are flooded.
14 Portions of the C&O Canal Towpath start to flood west of Williamsport, and the Four Locks parking lot along the C&O Canal also begins to flood.
About This Location Collapse

Latitude: 39.605173° N, Longitude: 77.922952° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 21 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 340.40 361.40 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Additional Information Collapse
Forecast and warning services began at this site on December 11, 2019.
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
(571) 888-3500
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