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Hydrograph River at a Glance Download
Potomac River at Point of Rocks Stage (ft)Flow (kcfs)Highest Observation: 1.63 ft at 10:45AM Jul 24, 2014Observed: 1.62 ft at 11:00AM Jul 24, 2014Observed: 1.62 ft at 11:15AM Jul 24, 2014Observed: 1.61 ft at 11:30AM Jul 24, 2014Observed: 1.61 ft at 11:45AM Jul 24, 2014Observed: 1.6 ft at 12:00PM Jul 24, 2014Observed: 1.6 ft at 12:15PM Jul 24, 2014Observed: 1.6 ft at 12:30PM Jul 24, 2014Observed: 1.59 ft at 12:45PM Jul 24, 2014Observed: 1.59 ft at 1:00PM Jul 24, 2014Observed: 1.59 ft at 1:15PM Jul 24, 2014Observed: 1.59 ft at 1:30PM Jul 24, 2014Observed: 1.58 ft at 1:45PM Jul 24, 2014Observed: 1.58 ft at 2:00PM Jul 24, 2014Observed: 1.58 ft at 2:15PM Jul 24, 2014Observed: 1.58 ft at 2:30PM Jul 24, 2014Observed: 1.58 ft at 2:45PM Jul 24, 2014Observed: 1.58 ft at 3:00PM Jul 24, 2014Observed: 1.57 ft at 3:15PM Jul 24, 2014Observed: 1.57 ft at 3:30PM Jul 24, 2014Observed: 1.57 ft at 3:45PM Jul 24, 2014Observed: 1.57 ft at 4:00PM Jul 24, 2014Observed: 1.57 ft at 4:15PM Jul 24, 2014Observed: 1.57 ft at 4:30PM Jul 24, 2014Observed: 1.57 ft at 4:45PM Jul 24, 2014Observed: 1.57 ft at 5:00PM Jul 24, 2014Observed: 1.57 ft at 5:15PM Jul 24, 2014Observed: 1.57 ft at 5:30PM Jul 24, 2014Observed: 1.57 ft at 5:45PM Jul 24, 2014Observed: 1.57 ft at 6:00PM Jul 24, 2014Observed: 1.57 ft at 6:15PM Jul 24, 2014Observed: 1.57 ft at 6:30PM Jul 24, 2014Observed: 1.57 ft at 6:45PM Jul 24, 2014Observed: 1.56 ft at 7:00PM Jul 24, 2014Observed: 1.56 ft at 7:15PM Jul 24, 2014Observed: 1.56 ft at 7:30PM Jul 24, 2014Observed: 1.56 ft at 7:45PM Jul 24, 2014Observed: 1.56 ft at 8:00PM Jul 24, 2014Observed: 1.56 ft at 8:15PM Jul 24, 2014Observed: 1.56 ft at 8:30PM Jul 24, 2014Observed: 1.56 ft at 8:45PM Jul 24, 2014Observed: 1.55 ft at 9:00PM Jul 24, 2014Observed: 1.55 ft at 9:15PM Jul 24, 2014Observed: 1.55 ft at 9:30PM Jul 24, 2014Observed: 1.55 ft at 9:45PM Jul 24, 2014Observed: 1.55 ft at 10:00PM Jul 24, 2014Observed: 1.55 ft at 10:15PM Jul 24, 2014Observed: 1.55 ft at 10:30PM Jul 24, 2014Observed: 1.55 ft at 10:45PM Jul 24, 2014Observed: 1.55 ft at 11:00PM Jul 24, 2014Observed: 1.54 ft at 11:15PM Jul 24, 2014Observed: 1.54 ft at 11:30PM Jul 24, 2014Observed: 1.54 ft at 11:45PM Jul 24, 2014Observed: 1.54 ft at 12:00AM Jul 25, 2014Observed: 1.54 ft at 12:15AM Jul 25, 2014Observed: 1.54 ft at 12:30AM Jul 25, 2014Observed: 1.54 ft at 12:45AM Jul 25, 2014Observed: 1.54 ft at 1:00AM Jul 25, 2014Observed: 1.54 ft at 1:15AM Jul 25, 2014Observed: 1.54 ft at 1:30AM Jul 25, 2014Observed: 1.54 ft at 1:45AM Jul 25, 2014Observed: 1.54 ft at 2:00AM Jul 25, 2014Observed: 1.54 ft at 2:15AM Jul 25, 2014Observed: 1.54 ft at 2:30AM Jul 25, 2014Observed: 1.54 ft at 2:45AM Jul 25, 2014Observed: 1.53 ft at 3:00AM Jul 25, 2014Observed: 1.53 ft at 3:15AM Jul 25, 2014Observed: 1.53 ft at 3:30AM Jul 25, 2014Observed: 1.53 ft at 3:45AM Jul 25, 2014Observed: 1.53 ft at 4:00AM Jul 25, 2014Observed: 1.53 ft at 4:15AM Jul 25, 2014Observed: 1.53 ft at 4:30AM Jul 25, 2014Observed: 1.53 ft at 4:45AM Jul 25, 2014Observed: 1.53 ft at 5:00AM Jul 25, 2014Observed: 1.53 ft at 5:15AM Jul 25, 2014Observed: 1.52 ft at 5:30AM Jul 25, 2014Observed: 1.52 ft at 5:45AM Jul 25, 2014Observed: 1.52 ft at 6:00AM Jul 25, 2014Observed: 1.52 ft at 6:15AM Jul 25, 2014Observed: 1.52 ft at 6:30AM Jul 25, 2014Observed: 1.52 ft at 6:45AM Jul 25, 2014Observed: 1.52 ft at 7:00AM Jul 25, 2014Observed: 1.52 ft at 7:15AM Jul 25, 2014Observed: 1.52 ft at 7:30AM Jul 25, 2014Observed: 1.51 ft at 7:45AM Jul 25, 2014Observed: 1.51 ft at 8:00AM Jul 25, 2014Observed: 1.51 ft at 8:15AM Jul 25, 2014Observed: 1.51 ft at 8:30AM Jul 25, 2014Observed: 1.51 ft at 8:45AM Jul 25, 2014Observed: 1.51 ft at 9:00AM Jul 25, 2014Observed: 1.51 ft at 9:15AM Jul 25, 2014Observed: 1.51 ft at 9:30AM Jul 25, 2014Observed: 1.51 ft at 9:45AM Jul 25, 2014Observed: 1.51 ft at 10:00AM Jul 25, 2014Observed: 1.51 ft at 10:15AM Jul 25, 2014Observed: 1.51 ft at 10:30AM Jul 25, 2014Observed: 1.5 ft at 10:45AM Jul 25, 2014Observed: 1.51 ft at 11:00AM Jul 25, 2014Observed: 1.51 ft at 11:15AM Jul 25, 2014Observed: 1.5 ft at 11:30AM Jul 25, 2014Observed: 1.5 ft at 11:45AM Jul 25, 2014Observed: 1.5 ft at 12:00PM Jul 25, 2014Observed: 1.5 ft at 12:15PM Jul 25, 2014Observed: 1.5 ft at 12:30PM Jul 25, 2014Observed: 1.5 ft at 12:45PM Jul 25, 2014Observed: 1.5 ft at 1:00PM Jul 25, 2014Observed: 1.51 ft at 1:15PM Jul 25, 2014Observed: 1.51 ft at 1:30PM Jul 25, 2014Observed: 1.51 ft at 1:45PM Jul 25, 2014Observed: 1.51 ft at 2:00PM Jul 25, 2014Observed: 1.51 ft at 2:15PM Jul 25, 2014Observed: 1.51 ft at 2:30PM Jul 25, 2014Observed: 1.51 ft at 2:45PM Jul 25, 2014Observed: 1.51 ft at 3:00PM Jul 25, 2014Observed: 1.51 ft at 3:15PM Jul 25, 2014Observed: 1.51 ft at 3:30PM Jul 25, 2014Observed: 1.51 ft at 3:45PM Jul 25, 2014Observed: 1.51 ft at 4:00PM Jul 25, 2014Observed: 1.52 ft at 4:15PM Jul 25, 2014Observed: 1.52 ft at 4:30PM Jul 25, 2014Observed: 1.52 ft at 4:45PM Jul 25, 2014Observed: 1.52 ft at 5:00PM Jul 25, 2014Observed: 1.52 ft at 5:15PM Jul 25, 2014Observed: 1.53 ft at 5:30PM Jul 25, 2014Observed: 1.53 ft at 5:45PM Jul 25, 2014Observed: 1.53 ft at 6:00PM Jul 25, 2014Observed: 1.53 ft at 6:15PM Jul 25, 2014Observed: 1.53 ft at 6:30PM Jul 25, 2014Observed: 1.53 ft at 6:45PM Jul 25, 2014Observed: 1.54 ft at 7:00PM Jul 25, 2014Observed: 1.54 ft at 7:15PM Jul 25, 2014Observed: 1.54 ft at 7:30PM Jul 25, 2014Observed: 1.54 ft at 7:45PM Jul 25, 2014Observed: 1.54 ft at 8:00PM Jul 25, 2014Observed: 1.54 ft at 8:15PM Jul 25, 2014Observed: 1.54 ft at 8:30PM Jul 25, 2014Observed: 1.54 ft at 8:45PM Jul 25, 2014Observed: 1.54 ft at 9:00PM Jul 25, 2014Observed: 1.54 ft at 9:15PM Jul 25, 2014Observed: 1.54 ft at 9:30PM Jul 25, 2014Observed: 1.54 ft at 9:45PM Jul 25, 2014Observed: 1.54 ft at 10:00PM Jul 25, 2014Observed: 1.54 ft at 10:15PM Jul 25, 2014Observed: 1.54 ft at 10:30PM Jul 25, 2014Observed: 1.54 ft at 10:45PM Jul 25, 2014Observed: 1.54 ft at 11:00PM Jul 25, 2014Observed: 1.54 ft at 11:15PM Jul 25, 2014Observed: 1.54 ft at 11:30PM Jul 25, 2014Observed: 1.54 ft at 11:45PM Jul 25, 2014Observed: 1.54 ft at 12:00AM Jul 26, 2014Observed: 1.54 ft at 12:15AM Jul 26, 2014Observed: 1.54 ft at 12:30AM Jul 26, 2014Observed: 1.53 ft at 12:45AM Jul 26, 2014Observed: 1.53 ft at 1:00AM Jul 26, 2014Observed: 1.53 ft at 1:15AM Jul 26, 2014Observed: 1.53 ft at 1:30AM Jul 26, 2014Observed: 1.53 ft at 1:45AM Jul 26, 2014Observed: 1.53 ft at 2:00AM Jul 26, 2014Observed: 1.52 ft at 2:15AM Jul 26, 2014Observed: 1.52 ft at 2:30AM Jul 26, 2014Observed: 1.52 ft at 2:45AM Jul 26, 2014Observed: 1.52 ft at 3:00AM Jul 26, 2014Observed: 1.52 ft at 3:15AM Jul 26, 2014Observed: 1.52 ft at 3:30AM Jul 26, 2014Observed: 1.52 ft at 3:45AM Jul 26, 2014Observed: 1.52 ft at 4:00AM Jul 26, 2014Observed: 1.51 ft at 4:15AM Jul 26, 2014Observed: 1.51 ft at 4:30AM Jul 26, 2014Observed: 1.51 ft at 4:45AM Jul 26, 2014Observed: 1.51 ft at 5:00AM Jul 26, 2014Observed: 1.51 ft at 5:15AM Jul 26, 2014Observed: 1.51 ft at 5:30AM Jul 26, 2014Observed: 1.51 ft at 5:45AM Jul 26, 2014Observed: 1.51 ft at 6:00AM Jul 26, 2014Observed: 1.51 ft at 6:15AM Jul 26, 2014Observed: 1.51 ft at 6:30AM Jul 26, 2014Observed: 1.51 ft at 6:45AM Jul 26, 2014Observed: 1.5 ft at 7:00AM Jul 26, 2014Observed: 1.5 ft at 7:15AM Jul 26, 2014Observed: 1.5 ft at 7:30AM Jul 26, 2014Observed: 1.5 ft at 7:45AM Jul 26, 2014Observed: 1.5 ft at 8:00AM Jul 26, 2014Observed: 1.5 ft at 8:15AM Jul 26, 2014Observed: 1.5 ft at 8:30AM Jul 26, 2014Observed: 1.5 ft at 8:45AM Jul 26, 2014Observed: 1.5 ft at 9:00AM Jul 26, 2014Observed: 1.5 ft at 9:15AM Jul 26, 2014Observed: 1.5 ft at 9:30AM Jul 26, 2014Observed: 1.5 ft at 9:45AM Jul 26, 2014Observed: 1.5 ft at 10:00AM Jul 26, 2014Observed: 1.5 ft at 10:15AM Jul 26, 2014Observed: 1.5 ft at 10:30AM Jul 26, 2014Observed: 1.5 ft at 10:45AM Jul 26, 2014Observed: 1.5 ft at 11:00AM Jul 26, 2014Observed: 1.5 ft at 11:15AM Jul 26, 2014Observed: 1.5 ft at 11:30AM Jul 26, 2014Observed: 1.5 ft at 11:45AM Jul 26, 2014Observed: 1.5 ft at 12:00PM Jul 26, 2014Observed: 1.51 ft at 12:15PM Jul 26, 2014Observed: 1.51 ft at 12:30PM Jul 26, 2014Observed: 1.51 ft at 12:45PM Jul 26, 2014Observed: 1.51 ft at 1:00PM Jul 26, 2014Observed: 1.51 ft at 1:15PM Jul 26, 2014Observed: 1.51 ft at 1:30PM Jul 26, 2014Observed: 1.51 ft at 1:45PM Jul 26, 2014Observed: 1.51 ft at 2:00PM Jul 26, 2014Observed: 1.51 ft at 2:15PM Jul 26, 2014Observed: 1.51 ft at 2:30PM Jul 26, 2014Observed: 1.51 ft at 2:45PM Jul 26, 2014Observed: 1.51 ft at 3:00PM Jul 26, 2014Observed: 1.51 ft at 3:15PM Jul 26, 2014Observed: 1.51 ft at 3:30PM Jul 26, 2014Observed: 1.51 ft at 3:45PM Jul 26, 2014Observed: 1.51 ft at 4:00PM Jul 26, 2014Observed: 1.51 ft at 4:15PM Jul 26, 2014Observed: 1.51 ft at 4:30PM Jul 26, 2014Observed: 1.5 ft at 4:45PM Jul 26, 2014Observed: 1.5 ft at 5:00PM Jul 26, 2014Observed: 1.5 ft at 5:15PM Jul 26, 2014Observed: 1.5 ft at 5:30PM Jul 26, 2014Observed: 1.5 ft at 5:45PM Jul 26, 2014Observed: 1.5 ft at 6:00PM Jul 26, 2014Observed: 1.5 ft at 6:15PM Jul 26, 2014Observed: 1.5 ft at 6:30PM Jul 26, 2014Observed: 1.5 ft at 6:45PM Jul 26, 2014Observed: 1.5 ft at 7:00PM Jul 26, 2014Observed: 1.5 ft at 7:15PM Jul 26, 2014Observed: 1.5 ft at 7:30PM Jul 26, 2014Observed: 1.5 ft at 7:45PM Jul 26, 2014Observed: 1.5 ft at 8:00PM Jul 26, 2014Observed: 1.5 ft at 8:15PM Jul 26, 2014Observed: 1.5 ft at 8:30PM Jul 26, 2014Observed: 1.5 ft at 8:45PM Jul 26, 2014Observed: 1.5 ft at 9:00PM Jul 26, 2014Observed: 1.5 ft at 9:15PM Jul 26, 2014Observed: 1.5 ft at 9:30PM Jul 26, 2014Observed: 1.5 ft at 9:45PM Jul 26, 2014Observed: 1.5 ft at 10:00PM Jul 26, 2014Observed: 1.49 ft at 10:15PM Jul 26, 2014Observed: 1.49 ft at 10:30PM Jul 26, 2014Observed: 1.49 ft at 10:45PM Jul 26, 2014Observed: 1.49 ft at 11:00PM Jul 26, 2014Observed: 1.49 ft at 11:15PM Jul 26, 2014Observed: 1.49 ft at 11:30PM Jul 26, 2014Observed: 1.49 ft at 11:45PM Jul 26, 2014Observed: 1.49 ft at 12:00AM Jul 27, 2014Observed: 1.49 ft at 12:15AM Jul 27, 2014Observed: 1.49 ft at 12:30AM Jul 27, 2014Observed: 1.49 ft at 12:45AM Jul 27, 2014Observed: 1.48 ft at 1:00AM Jul 27, 2014Observed: 1.48 ft at 1:15AM Jul 27, 2014Observed: 1.48 ft at 1:30AM Jul 27, 2014Observed: 1.48 ft at 1:45AM Jul 27, 2014Observed: 1.48 ft at 2:00AM Jul 27, 2014Observed: 1.48 ft at 2:15AM Jul 27, 2014Observed: 1.48 ft at 2:30AM Jul 27, 2014Observed: 1.48 ft at 2:45AM Jul 27, 2014Observed: 1.48 ft at 3:00AM Jul 27, 2014Observed: 1.47 ft at 3:15AM Jul 27, 2014Observed: 1.47 ft at 3:30AM Jul 27, 2014Observed: 1.47 ft at 3:45AM Jul 27, 2014Observed: 1.47 ft at 4:00AM Jul 27, 2014Observed: 1.47 ft at 4:15AM Jul 27, 2014Observed: 1.47 ft at 4:30AM Jul 27, 2014Observed: 1.47 ft at 4:45AM Jul 27, 2014Observed: 1.47 ft at 5:00AM Jul 27, 2014Observed: 1.47 ft at 5:15AM Jul 27, 2014Observed: 1.47 ft at 5:30AM Jul 27, 2014Observed: 1.47 ft at 5:45AM Jul 27, 2014Observed: 1.47 ft at 6:00AM Jul 27, 2014Observed: 1.47 ft at 6:15AM Jul 27, 2014Observed: 1.47 ft at 6:30AM Jul 27, 2014Observed: 1.47 ft at 6:45AM Jul 27, 2014Observed: 1.46 ft at 7:00AM Jul 27, 2014Observed: 1.46 ft at 7:15AM Jul 27, 2014Observed: 1.46 ft at 7:30AM Jul 27, 2014Observed: 1.46 ft at 7:45AM Jul 27, 2014Observed: 1.46 ft at 8:00AM Jul 27, 2014Observed: 1.46 ft at 8:15AM Jul 27, 2014Observed: 1.46 ft at 8:30AM Jul 27, 2014Observed: 1.46 ft at 8:45AM Jul 27, 2014Observed: 1.46 ft at 9:00AM Jul 27, 2014Observed: 1.46 ft at 9:15AM Jul 27, 2014Observed: 1.46 ft at 9:30AM Jul 27, 2014Observed: 1.46 ft at 9:45AM Jul 27, 2014Observed: 1.46 ft at 10:00AM Jul 27, 2014Observed: 1.46 ft at 10:15AM Jul 27, 2014Observed: 1.46 ft at 10:30AM Jul 27, 2014Observed: 1.46 ft at 10:45AM Jul 27, 2014Observed: 1.46 ft at 11:00AM Jul 27, 2014Observed: 1.45 ft at 11:15AM Jul 27, 2014Observed: 1.46 ft at 11:30AM Jul 27, 2014Observed: 1.46 ft at 11:45AM Jul 27, 2014Observed: 1.46 ft at 12:00PM Jul 27, 2014Observed: 1.46 ft at 12:15PM Jul 27, 2014Observed: 1.46 ft at 12:30PM Jul 27, 2014Observed: 1.46 ft at 12:45PM Jul 27, 2014Observed: 1.46 ft at 1:00PM Jul 27, 2014Observed: 1.46 ft at 1:15PM Jul 27, 2014Observed: 1.45 ft at 1:30PM Jul 27, 2014Observed: 1.45 ft at 1:45PM Jul 27, 2014Observed: 1.45 ft at 2:00PM Jul 27, 2014Observed: 1.45 ft at 2:15PM Jul 27, 2014Observed: 1.45 ft at 2:30PM Jul 27, 2014Observed: 1.45 ft at 2:45PM Jul 27, 2014Observed: 1.45 ft at 3:00PM Jul 27, 2014Observed: 1.45 ft at 3:15PM Jul 27, 2014Observed: 1.45 ft at 3:30PM Jul 27, 2014Observed: 1.45 ft at 3:45PM Jul 27, 2014Observed: 1.45 ft at 4:00PM Jul 27, 2014Observed: 1.45 ft at 4:15PM Jul 27, 2014Observed: 1.45 ft at 4:30PM Jul 27, 2014Observed: 1.45 ft at 4:45PM Jul 27, 2014Observed: 1.45 ft at 5:00PM Jul 27, 2014Observed: 1.45 ft at 5:15PM Jul 27, 2014Observed: 1.46 ft at 5:30PM Jul 27, 2014Observed: 1.45 ft at 5:45PM Jul 27, 2014Observed: 1.45 ft at 6:00PM Jul 27, 2014Observed: 1.45 ft at 6:15PM Jul 27, 2014Observed: 1.45 ft at 6:30PM Jul 27, 2014Observed: 1.45 ft at 6:45PM Jul 27, 2014Observed: 1.45 ft at 7:00PM Jul 27, 2014Observed: 1.45 ft at 7:15PM Jul 27, 2014Observed: 1.45 ft at 7:30PM Jul 27, 2014Observed: 1.45 ft at 7:45PM Jul 27, 2014Observed: 1.45 ft at 8:00PM Jul 27, 2014Observed: 1.46 ft at 8:15PM Jul 27, 2014Observed: 1.46 ft at 8:30PM Jul 27, 2014Observed: 1.46 ft at 8:45PM Jul 27, 2014Observed: 1.46 ft at 9:00PM Jul 27, 2014Observed: 1.46 ft at 9:15PM Jul 27, 2014Observed: 1.46 ft at 9:30PM Jul 27, 2014Observed: 1.46 ft at 9:45PM Jul 27, 2014Observed: 1.46 ft at 10:00PM Jul 27, 2014Observed: 1.46 ft at 10:15PM Jul 27, 2014Observed: 1.46 ft at 10:30PM Jul 27, 2014Observed: 1.46 ft at 10:45PM Jul 27, 2014Observed: 1.46 ft at 11:00PM Jul 27, 2014Observed: 1.46 ft at 11:15PM Jul 27, 2014Observed: 1.46 ft at 11:30PM Jul 27, 2014Observed: 1.46 ft at 11:45PM Jul 27, 2014Observed: 1.46 ft at 12:00AM Jul 28, 2014Observed: 1.46 ft at 12:15AM Jul 28, 2014Observed: 1.46 ft at 12:30AM Jul 28, 2014Observed: 1.46 ft at 12:45AM Jul 28, 2014Observed: 1.46 ft at 1:00AM Jul 28, 2014Observed: 1.46 ft at 1:15AM Jul 28, 2014Observed: 1.46 ft at 1:30AM Jul 28, 2014Observed: 1.46 ft at 1:45AM Jul 28, 2014Observed: 1.46 ft at 2:00AM Jul 28, 2014Observed: 1.46 ft at 2:15AM Jul 28, 2014Observed: 1.46 ft at 2:30AM Jul 28, 2014Observed: 1.46 ft at 2:45AM Jul 28, 2014Observed: 1.46 ft at 3:00AM Jul 28, 2014Observed: 1.46 ft at 3:15AM Jul 28, 2014Observed: 1.46 ft at 3:30AM Jul 28, 2014Observed: 1.46 ft at 3:45AM Jul 28, 2014Observed: 1.46 ft at 4:00AM Jul 28, 2014Observed: 1.46 ft at 4:15AM Jul 28, 2014Observed: 1.46 ft at 4:30AM Jul 28, 2014Observed: 1.46 ft at 4:45AM Jul 28, 2014Observed: 1.46 ft at 5:00AM Jul 28, 2014Observed: 1.46 ft at 5:15AM Jul 28, 2014Observed: 1.46 ft at 5:30AM Jul 28, 2014Observed: 1.46 ft at 5:45AM Jul 28, 2014Observed: 1.46 ft at 6:00AM Jul 28, 2014Observed: 1.46 ft at 6:15AM Jul 28, 2014Observed: 1.46 ft at 6:30AM Jul 28, 2014Observed: 1.47 ft at 6:45AM Jul 28, 2014Observed: 1.47 ft at 7:00AM Jul 28, 2014Observed: 1.47 ft at 7:15AM Jul 28, 2014Observed: 1.47 ft at 7:30AM Jul 28, 2014Observed: 1.47 ft at 7:45AM Jul 28, 2014Observed: 1.47 ft at 8:00AM Jul 28, 2014Observed: 1.47 ft at 8:15AM Jul 28, 2014Observed: 1.47 ft at 8:30AM Jul 28, 2014Observed: 1.47 ft at 8:45AM Jul 28, 2014Observed: 1.47 ft at 9:00AM Jul 28, 2014Observed: 1.47 ft at 9:15AM Jul 28, 2014Observed: 1.47 ft at 9:30AM Jul 28, 2014Observed: 1.47 ft at 9:45AM Jul 28, 2014Observed: 1.47 ft at 10:00AM Jul 28, 2014Observed: 1.47 ft at 10:15AM Jul 28, 2014Observed: 1.47 ft at 10:30AM Jul 28, 2014Observed: 1.47 ft at 10:45AM Jul 28, 2014Observed: 1.47 ft at 11:00AM Jul 28, 2014Observed: 1.47 ft at 11:15AM Jul 28, 2014Observed: 1.47 ft at 11:30AM Jul 28, 2014Observed: 1.47 ft at 11:45AM Jul 28, 2014Observed: 1.47 ft at 12:00PM Jul 28, 2014Observed: 1.47 ft at 12:15PM Jul 28, 2014Observed: 1.47 ft at 12:30PM Jul 28, 2014Observed: 1.47 ft at 12:45PM Jul 28, 2014Observed: 1.47 ft at 1:00PM Jul 28, 2014Observed: 1.47 ft at 1:15PM Jul 28, 2014Observed: 1.47 ft at 1:30PM Jul 28, 2014Observed: 1.46 ft at 1:45PM Jul 28, 2014Observed: 1.46 ft at 2:00PM Jul 28, 2014Observed: 1.46 ft at 2:15PM Jul 28, 2014Observed: 1.46 ft at 2:30PM Jul 28, 2014Observed: 1.47 ft at 2:45PM Jul 28, 2014Observed: 1.47 ft at 3:00PM Jul 28, 2014Observed: 1.47 ft at 3:15PM Jul 28, 2014Observed: 1.46 ft at 3:30PM Jul 28, 2014Observed: 1.47 ft at 3:45PM Jul 28, 2014Observed: 1.47 ft at 4:00PM Jul 28, 2014Observed: 1.47 ft at 4:15PM Jul 28, 2014Observed: 1.47 ft at 4:30PM Jul 28, 2014Observed: 1.47 ft at 4:45PM Jul 28, 2014Observed: 1.47 ft at 5:00PM Jul 28, 2014Observed: 1.47 ft at 5:15PM Jul 28, 2014Observed: 1.47 ft at 5:30PM Jul 28, 2014Observed: 1.47 ft at 5:45PM Jul 28, 2014Observed: 1.47 ft at 6:00PM Jul 28, 2014Observed: 1.47 ft at 6:15PM Jul 28, 2014Observed: 1.48 ft at 6:30PM Jul 28, 2014Observed: 1.48 ft at 6:45PM Jul 28, 2014Observed: 1.48 ft at 7:00PM Jul 28, 2014Observed: 1.48 ft at 7:15PM Jul 28, 2014Observed: 1.48 ft at 7:30PM Jul 28, 2014Observed: 1.48 ft at 7:45PM Jul 28, 2014Observed: 1.49 ft at 8:00PM Jul 28, 2014Observed: 1.49 ft at 8:15PM Jul 28, 2014Observed: 1.49 ft at 8:30PM Jul 28, 2014Observed: 1.49 ft at 8:45PM Jul 28, 2014Observed: 1.49 ft at 9:00PM Jul 28, 2014Observed: 1.49 ft at 9:15PM Jul 28, 2014Observed: 1.5 ft at 9:30PM Jul 28, 2014Observed: 1.5 ft at 9:45PM Jul 28, 2014Observed: 1.5 ft at 10:00PM Jul 28, 2014Observed: 1.5 ft at 10:15PM Jul 28, 2014Observed: 1.5 ft at 10:30PM Jul 28, 2014Observed: 1.5 ft at 10:45PM Jul 28, 2014Observed: 1.5 ft at 11:00PM Jul 28, 2014Observed: 1.51 ft at 11:15PM Jul 28, 2014Observed: 1.51 ft at 11:30PM Jul 28, 2014Observed: 1.51 ft at 11:45PM Jul 28, 2014Observed: 1.51 ft at 12:00AM Jul 29, 2014Observed: 1.51 ft at 12:15AM Jul 29, 2014Observed: 1.51 ft at 12:30AM Jul 29, 2014Observed: 1.51 ft at 12:45AM Jul 29, 2014Observed: 1.52 ft at 1:00AM Jul 29, 2014Observed: 1.52 ft at 1:15AM Jul 29, 2014Observed: 1.52 ft at 1:30AM Jul 29, 2014Observed: 1.52 ft at 1:45AM Jul 29, 2014Observed: 1.52 ft at 2:00AM Jul 29, 2014Observed: 1.52 ft at 2:15AM Jul 29, 2014Observed: 1.52 ft at 2:30AM Jul 29, 2014Observed: 1.52 ft at 2:45AM Jul 29, 2014Observed: 1.52 ft at 3:00AM Jul 29, 2014Observed: 1.52 ft at 3:15AM Jul 29, 2014Observed: 1.52 ft at 3:30AM Jul 29, 2014Observed: 1.52 ft at 3:45AM Jul 29, 2014Observed: 1.52 ft at 4:00AM Jul 29, 2014Observed: 1.52 ft at 4:15AM Jul 29, 2014Observed: 1.52 ft at 4:30AM Jul 29, 2014Observed: 1.52 ft at 4:45AM Jul 29, 2014Observed: 1.52 ft at 5:00AM Jul 29, 2014Observed: 1.52 ft at 5:15AM Jul 29, 2014Observed: 1.52 ft at 5:30AM Jul 29, 2014Observed: 1.52 ft at 5:45AM Jul 29, 2014Observed: 1.52 ft at 6:00AM Jul 29, 2014Observed: 1.53 ft at 6:15AM Jul 29, 2014Observed: 1.53 ft at 6:30AM Jul 29, 2014Observed: 1.53 ft at 6:45AM Jul 29, 2014Observed: 1.53 ft at 7:00AM Jul 29, 2014Observed: 1.53 ft at 7:15AM Jul 29, 2014Observed: 1.53 ft at 7:30AM Jul 29, 2014Observed: 1.53 ft at 7:45AM Jul 29, 2014Observed: 1.53 ft at 8:00AM Jul 29, 2014Observed: 1.53 ft at 8:15AM Jul 29, 2014Observed: 1.54 ft at 8:30AM Jul 29, 2014Observed: 1.54 ft at 8:45AM Jul 29, 2014Observed: 1.54 ft at 9:00AM Jul 29, 2014Observed: 1.54 ft at 9:15AM Jul 29, 2014Observed: 1.54 ft at 9:30AM Jul 29, 2014Observed: 1.54 ft at 9:45AM Jul 29, 2014Highest Forecast: 1.6 ft 2:00PM Jul 29, 2014Highest Forecast: 1.6 ft 8:00PM Jul 29, 2014Highest Forecast: 1.6 ft 2:00AM Jul 30, 2014Highest Forecast: 1.6 ft 8:00AM Jul 30, 2014Highest Forecast: 1.6 ft 2:00PM Jul 30, 2014Highest Forecast: 1.6 ft 8:00PM Jul 30, 2014Highest Forecast: 1.6 ft 2:00AM Jul 31, 2014Highest Forecast: 1.6 ft 8:00AM Jul 31, 2014Forecast: 1.5 ft 2:00PM Jul 31, 2014Forecast: 1.5 ft 8:00PM Jul 31, 2014Forecast: 1.5 ft 2:00AM Aug 01, 2014Forecast: 1.5 ft 8:00AM Aug 01, 2014USGS--Water Resources of the United StatesPORM2(plotting HGIRG) Graph Created (10:36AM Jul 29, 2014)ObservedForecast (issued 8:58AM Jul 29)Latest observed value: 1.54 ft at 9:45 AM EDT 29-Jul-2014. Flood Stage is 16 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 at Point of Rocks are issued routinely year-round.
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Upstream Gauge - at Harpers Ferry Upstream Gauge Downstream Gauge Downstream Gauge - at Edwards Ferry
Flood Categories (in feet)
Major Flood Stage:25
Moderate Flood Stage:20
Flood Stage:16
Action Stage:15

Historical Crests
(1) 41.03 ft on 03/19/1936
(2) 40.43 ft on 10/16/1942
(3) 40.20 ft on 06/02/1889
(4) 37.43 ft on 06/23/1972
(5) 36.34 ft on 01/21/1996
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(P): Preliminary values subject to further review.

Low Water Records
(1) 0.30 ft on 09/11/1966
Zoom Level:12
KML Image
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
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40 WATER REACHES THE LOWEST PORTION OF THE CITY OF BRUNSWICK...ABOVE THE RAILROAD TRACKS.
35 THE MARC STATION IN POINT OF ROCKS IS FLOODED. AT LEAST TWO FEET OF WATER COVERS MUCH OF MARYLAND STATE ROUTE 28 IN THE CITY. WATER BEGINS TO ENTER HOMES AND BUSINESSES IN POINT OF ROCKS ALONG ROUTE 28.
32 WATER COVERS MARYLAND STATE ROUTE 28 IN POINT OF ROCKS NEAR THE MARC STATION.
31 WATER REACHES THE MARC PARKING LOT AT BRUNSWICK.
30 WATER REACHES A HOME ON THE LOUDOUN COUNTY SIDE OF THE RIVER NEAR POINT OF ROCKS. WATER ALSO REACHES THE BRUNSWICK TRAIN YARD AND COVERS PORTIONS OF THE MARC PARKING LOT AT POINT OF ROCKS...AND COVERS OLD COMMERCE STREET IN POINT OF ROCKS.
29 WATER COMPLETELY COVERS THE COMFORT STATION AT THE POINT OF ROCKS BOAT RAMP.
27 WATER COVERS A LARGE SECTION OF THE C AND O CANAL TOWPATH IN FREDERICK COUNTY MARYLAND. WATER ALSO REACHES THE RAILROAD TRACKS AT POINT OF ROCKS.
25 WATER REACHES OUTBUILDINGS ON THE LOUDOUN COUNTY SIDE OF THE RIVER NEAR POINT OF ROCKS.
23 FLOODWATERS COMPLETELY COVER THE COMFORT STATION AT THE BRUNSWICK BOAT RAMP...AND REACH THE COMFORT STATION AT THE POINT OF ROCKS BOAT RAMP. THE UPPER PARKING LOT AT THE POINT OF ROCKS BOAT RAMP BEGINS TO FLOOD.
22 WATER BEGINS TO COVER THE C AND O CANAL TOWPATH NEAR POINT OF ROCKS AND BRUNSWICK.
20 THE BOAT RAMP AND LOWER PARKING LOT AT POINT OF ROCKS ARE FLOODED. WATER APPROACHES THE WATER TREATMENT PLANT IN BRUNSWICK. FARMLAND BEHIND THE TARARA VINEYARD IS FLOODED.
18 WATER APPROACHES STRUCTURES AT THE BRUNSWICK CAMPGROUND.
17 WATER ENTERS THE COMFORT STATION AT THE BRUNSWICK BOAT RAMP PARKING AREA.
16 THE PARKING LOTS AT BOTH THE MCKIMMEY AND BRUNSWICK BOAT RAMPS BEGIN TO FLOOD. FLOODING OF AN AGRICULTURAL FIELD ADJACENT TO THE MCKIMMEY BOAT RAMP IS OCCURRING. ABOUT HALF THE LOWER PARKING LOT OF THE POINT OF ROCKS BOAT RAMP IS ALSO FLOODED.
15 SEVERAL LOWLAND FORESTED AREAS...MAINLY ON ISLANDS...BEGIN TO FLOOD.
14 WATER COMPLETELY COVERS THE NOLANDS FERRY BOAT RAMP AND BEGINS TO FLOOD THE PARKING LOT NEARBY.
13 WATER BEGINS TO COVER LOW LYING AREAS WITHIN THE BRUNSWICK CAMPGROUND.
12.5 THE POINT OF ROCKS BOAT RAMP IS COMPLETELY COVERED BY WATER...AND WATER BEGINS TO AFFECT THE LOWER PARKING LOT NEARBY.
11 WATER COVERS THE PARKING LOT OF THE LANDER BOAT RAMP. CAMPERS AND OTHER RECREATIONAL INTERESTS SHOULD BEGIN TO MOVE AWAY FROM THE RIVER.
5.5 THE RIVER REACHES DANGER LEVEL FOR BOATERS...AS DEFINED BY THE STATE OF MARYLAND. CONDITIONS ARE EXTREMELY HAZARDOUS.
2 THE RIVER REACHES CAUTION LEVEL FOR BOATERS...AS DEFINED BY THE STATE OF MARYLAND. FAST MOVING WATER AND CHANGING CURRENTS CAN BE EXPECTED.
Photos
(1) USGS Wellhouse Adjacent to US Route 15 at Point of Rocks
(2) Staff Gage Being Installed in 1993 on US Route 15 Bridge Support Beam
(3) Looking Upstream at Paton Island from US 15 Bridge
(4) Railroad Tunnel Just Above Gage on Maryland Side of Potomac
About This Location Collapse

Latitude: 39.273611° N, Longitude: 77.543056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 16 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 29 200.63 ft 216.63 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
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Page last modified: 16-Jul-2014 12:48 AM
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