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Hydrograph River at a Glance Download
Patapsco River near Elkridge at Patapsco Valley State Park Stage (ft)Flow (cfs)Highest Observation: 6.55 ft at 4:45PM May 10, 2021Observed: 6.53 ft at 5:00PM May 10, 2021Highest Observation: 6.55 ft at 5:15PM May 10, 2021Highest Observation: 6.55 ft at 5:30PM May 10, 2021Observed: 6.54 ft at 5:45PM May 10, 2021Observed: 6.53 ft at 6:00PM May 10, 2021Observed: 6.53 ft at 6:15PM May 10, 2021Observed: 6.51 ft at 6:30PM May 10, 2021Observed: 6.52 ft at 6:45PM May 10, 2021Observed: 6.52 ft at 7:00PM May 10, 2021Observed: 6.51 ft at 7:15PM May 10, 2021Observed: 6.51 ft at 7:30PM May 10, 2021Observed: 6.5 ft at 7:45PM May 10, 2021Observed: 6.51 ft at 8:00PM May 10, 2021Observed: 6.5 ft at 8:15PM May 10, 2021Observed: 6.49 ft at 8:30PM May 10, 2021Observed: 6.51 ft at 8:45PM May 10, 2021Observed: 6.49 ft at 9:00PM May 10, 2021Observed: 6.49 ft at 9:15PM May 10, 2021Observed: 6.48 ft at 9:30PM May 10, 2021Observed: 6.48 ft at 9:45PM May 10, 2021Observed: 6.48 ft at 10:00PM May 10, 2021Observed: 6.47 ft at 10:15PM May 10, 2021Observed: 6.46 ft at 10:30PM May 10, 2021Observed: 6.47 ft at 10:45PM May 10, 2021Observed: 6.46 ft at 11:00PM May 10, 2021Observed: 6.46 ft at 11:15PM May 10, 2021Observed: 6.45 ft at 11:30PM May 10, 2021Observed: 6.45 ft at 11:45PM May 10, 2021Observed: 6.45 ft at 12:00AM May 11, 2021Observed: 6.45 ft at 12:15AM May 11, 2021Observed: 6.43 ft at 12:30AM May 11, 2021Observed: 6.43 ft at 12:45AM May 11, 2021Observed: 6.44 ft at 1:00AM May 11, 2021Observed: 6.44 ft at 1:15AM May 11, 2021Observed: 6.43 ft at 1:30AM May 11, 2021Observed: 6.42 ft at 1:45AM May 11, 2021Observed: 6.43 ft at 2:00AM May 11, 2021Observed: 6.42 ft at 2:15AM May 11, 2021Observed: 6.42 ft at 2:30AM May 11, 2021Observed: 6.42 ft at 2:45AM May 11, 2021Observed: 6.4 ft at 3:00AM May 11, 2021Observed: 6.41 ft at 3:15AM May 11, 2021Observed: 6.41 ft at 3:30AM May 11, 2021Observed: 6.41 ft at 3:45AM May 11, 2021Observed: 6.41 ft at 4:00AM May 11, 2021Observed: 6.39 ft at 4:15AM May 11, 2021Observed: 6.39 ft at 4:30AM May 11, 2021Observed: 6.4 ft at 4:45AM May 11, 2021Observed: 6.39 ft at 5:00AM May 11, 2021Observed: 6.38 ft at 5:15AM May 11, 2021Observed: 6.39 ft at 5:30AM May 11, 2021Observed: 6.38 ft at 5:45AM May 11, 2021Observed: 6.36 ft at 6:00AM May 11, 2021Observed: 6.37 ft at 6:15AM May 11, 2021Observed: 6.36 ft at 6:30AM May 11, 2021Observed: 6.36 ft at 6:45AM May 11, 2021Observed: 6.36 ft at 7:00AM May 11, 2021Observed: 6.35 ft at 7:15AM May 11, 2021Observed: 6.35 ft at 7:30AM May 11, 2021Observed: 6.35 ft at 7:45AM May 11, 2021Observed: 6.34 ft at 8:00AM May 11, 2021Observed: 6.35 ft at 8:15AM May 11, 2021Observed: 6.33 ft at 8:30AM May 11, 2021Observed: 6.33 ft at 8:45AM May 11, 2021Observed: 6.33 ft at 9:00AM May 11, 2021Observed: 6.33 ft at 9:15AM May 11, 2021Observed: 6.34 ft at 9:30AM May 11, 2021Observed: 6.33 ft at 9:45AM May 11, 2021Observed: 6.32 ft at 10:00AM May 11, 2021Observed: 6.34 ft at 10:15AM May 11, 2021Observed: 6.33 ft at 10:30AM May 11, 2021Observed: 6.33 ft at 10:45AM May 11, 2021Observed: 6.32 ft at 11:00AM May 11, 2021Observed: 6.33 ft at 11:15AM May 11, 2021Observed: 6.31 ft at 11:30AM May 11, 2021Observed: 6.31 ft at 11:45AM May 11, 2021Observed: 6.32 ft at 12:00PM May 11, 2021Observed: 6.32 ft at 12:15PM May 11, 2021Observed: 6.32 ft at 12:30PM May 11, 2021Observed: 6.3 ft at 12:45PM May 11, 2021Observed: 6.3 ft at 1:00PM May 11, 2021Observed: 6.31 ft at 1:15PM May 11, 2021Observed: 6.3 ft at 1:30PM May 11, 2021Observed: 6.3 ft at 1:45PM May 11, 2021Observed: 6.31 ft at 2:00PM May 11, 2021Observed: 6.3 ft at 2:15PM May 11, 2021Observed: 6.3 ft at 2:30PM May 11, 2021Observed: 6.3 ft at 2:45PM May 11, 2021Observed: 6.29 ft at 3:00PM May 11, 2021Observed: 6.29 ft at 3:15PM May 11, 2021Observed: 6.29 ft at 3:30PM May 11, 2021Observed: 6.3 ft at 3:45PM May 11, 2021Observed: 6.3 ft at 4:00PM May 11, 2021Observed: 6.29 ft at 4:15PM May 11, 2021Observed: 6.28 ft at 4:30PM May 11, 2021Observed: 6.28 ft at 4:45PM May 11, 2021Observed: 6.29 ft at 5:00PM May 11, 2021Observed: 6.27 ft at 5:15PM May 11, 2021Observed: 6.27 ft at 5:30PM May 11, 2021Observed: 6.28 ft at 5:45PM May 11, 2021Observed: 6.27 ft at 6:00PM May 11, 2021Observed: 6.26 ft at 6:15PM May 11, 2021Observed: 6.27 ft at 6:30PM May 11, 2021Observed: 6.26 ft at 6:45PM May 11, 2021Observed: 6.27 ft at 7:00PM May 11, 2021Observed: 6.27 ft at 7:15PM May 11, 2021Observed: 6.27 ft at 7:30PM May 11, 2021Observed: 6.27 ft at 7:45PM May 11, 2021Observed: 6.27 ft at 8:00PM May 11, 2021Observed: 6.26 ft at 8:15PM May 11, 2021Observed: 6.27 ft at 8:30PM May 11, 2021Observed: 6.28 ft at 8:45PM May 11, 2021Observed: 6.25 ft at 9:00PM May 11, 2021Observed: 6.27 ft at 9:15PM May 11, 2021Observed: 6.28 ft at 9:30PM May 11, 2021Observed: 6.28 ft at 9:45PM May 11, 2021Observed: 6.28 ft at 10:00PM May 11, 2021Observed: 6.28 ft at 10:15PM May 11, 2021Observed: 6.27 ft at 10:30PM May 11, 2021Observed: 6.27 ft at 10:45PM May 11, 2021Observed: 6.27 ft at 11:00PM May 11, 2021Observed: 6.27 ft at 11:15PM May 11, 2021Observed: 6.26 ft at 11:30PM May 11, 2021Observed: 6.27 ft at 11:45PM May 11, 2021Observed: 6.26 ft at 12:00AM May 12, 2021Observed: 6.25 ft at 12:15AM May 12, 2021Observed: 6.26 ft at 12:30AM May 12, 2021Observed: 6.26 ft at 12:45AM May 12, 2021Observed: 6.25 ft at 1:00AM May 12, 2021Observed: 6.27 ft at 1:15AM May 12, 2021Observed: 6.26 ft at 1:30AM May 12, 2021Observed: 6.27 ft at 1:45AM May 12, 2021Observed: 6.27 ft at 2:00AM May 12, 2021Observed: 6.27 ft at 2:15AM May 12, 2021Observed: 6.26 ft at 2:30AM May 12, 2021Observed: 6.26 ft at 2:45AM May 12, 2021Observed: 6.26 ft at 3:00AM May 12, 2021Observed: 6.26 ft at 3:15AM May 12, 2021Observed: 6.26 ft at 3:30AM May 12, 2021Observed: 6.26 ft at 3:45AM May 12, 2021Observed: 6.25 ft at 4:00AM May 12, 2021Observed: 6.26 ft at 4:15AM May 12, 2021Observed: 6.24 ft at 4:30AM May 12, 2021Observed: 6.26 ft at 4:45AM May 12, 2021Observed: 6.24 ft at 5:00AM May 12, 2021Observed: 6.24 ft at 5:15AM May 12, 2021Observed: 6.23 ft at 5:30AM May 12, 2021Observed: 6.23 ft at 5:45AM May 12, 2021Observed: 6.23 ft at 6:00AM May 12, 2021Observed: 6.23 ft at 6:15AM May 12, 2021Observed: 6.22 ft at 6:30AM May 12, 2021Observed: 6.22 ft at 6:45AM May 12, 2021Observed: 6.22 ft at 7:00AM May 12, 2021Observed: 6.22 ft at 7:15AM May 12, 2021Observed: 6.21 ft at 7:30AM May 12, 2021Observed: 6.21 ft at 7:45AM May 12, 2021Observed: 6.21 ft at 8:00AM May 12, 2021Observed: 6.21 ft at 8:15AM May 12, 2021Observed: 6.2 ft at 8:30AM May 12, 2021Observed: 6.2 ft at 8:45AM May 12, 2021Observed: 6.2 ft at 9:00AM May 12, 2021Observed: 6.19 ft at 9:15AM May 12, 2021Observed: 6.21 ft at 9:30AM May 12, 2021Observed: 6.21 ft at 9:45AM May 12, 2021Observed: 6.2 ft at 10:00AM May 12, 2021Observed: 6.21 ft at 10:15AM May 12, 2021Observed: 6.22 ft at 10:30AM May 12, 2021Observed: 6.2 ft at 10:45AM May 12, 2021Observed: 6.22 ft at 11:00AM May 12, 2021Observed: 6.21 ft at 11:15AM May 12, 2021Observed: 6.22 ft at 11:30AM May 12, 2021Observed: 6.22 ft at 11:45AM May 12, 2021Observed: 6.22 ft at 12:00PM May 12, 2021Observed: 6.22 ft at 12:15PM May 12, 2021Observed: 6.2 ft at 12:30PM May 12, 2021Observed: 6.2 ft at 12:45PM May 12, 2021Observed: 6.2 ft at 1:00PM May 12, 2021Observed: 6.19 ft at 1:15PM May 12, 2021Observed: 6.19 ft at 1:30PM May 12, 2021Observed: 6.19 ft at 1:45PM May 12, 2021Observed: 6.2 ft at 2:00PM May 12, 2021Observed: 6.2 ft at 2:15PM May 12, 2021Observed: 6.2 ft at 2:30PM May 12, 2021Observed: 6.19 ft at 2:45PM May 12, 2021Observed: 6.19 ft at 3:00PM May 12, 2021Observed: 6.18 ft at 3:15PM May 12, 2021Observed: 6.18 ft at 3:30PM May 12, 2021Observed: 6.18 ft at 3:45PM May 12, 2021Observed: 6.18 ft at 4:00PM May 12, 2021Observed: 6.17 ft at 4:15PM May 12, 2021Observed: 6.16 ft at 4:30PM May 12, 2021Observed: 6.16 ft at 4:45PM May 12, 2021Observed: 6.16 ft at 5:00PM May 12, 2021Observed: 6.17 ft at 5:15PM May 12, 2021Observed: 6.15 ft at 5:30PM May 12, 2021Observed: 6.16 ft at 5:45PM May 12, 2021Observed: 6.16 ft at 6:00PM May 12, 2021Observed: 6.16 ft at 6:15PM May 12, 2021Observed: 6.15 ft at 6:30PM May 12, 2021Observed: 6.16 ft at 6:45PM May 12, 2021Observed: 6.16 ft at 7:00PM May 12, 2021Observed: 6.17 ft at 7:15PM May 12, 2021Observed: 6.17 ft at 7:30PM May 12, 2021Observed: 6.18 ft at 7:45PM May 12, 2021Observed: 6.17 ft at 8:00PM May 12, 2021Observed: 6.19 ft at 8:15PM May 12, 2021Observed: 6.19 ft at 8:30PM May 12, 2021Observed: 6.19 ft at 8:45PM May 12, 2021Observed: 6.19 ft at 9:00PM May 12, 2021Observed: 6.19 ft at 9:15PM May 12, 2021Observed: 6.19 ft at 9:30PM May 12, 2021Observed: 6.18 ft at 9:45PM May 12, 2021Observed: 6.18 ft at 10:00PM May 12, 2021Observed: 6.17 ft at 10:15PM May 12, 2021Observed: 6.17 ft at 10:30PM May 12, 2021Observed: 6.17 ft at 10:45PM May 12, 2021Observed: 6.17 ft at 11:00PM May 12, 2021Observed: 6.17 ft at 11:15PM May 12, 2021Observed: 6.17 ft at 11:30PM May 12, 2021Observed: 6.16 ft at 11:45PM May 12, 2021Observed: 6.16 ft at 12:00AM May 13, 2021Observed: 6.15 ft at 12:15AM May 13, 2021Observed: 6.15 ft at 12:30AM May 13, 2021Observed: 6.15 ft at 12:45AM May 13, 2021Observed: 6.15 ft at 1:00AM May 13, 2021Observed: 6.15 ft at 1:15AM May 13, 2021Observed: 6.15 ft at 1:30AM May 13, 2021Observed: 6.14 ft at 1:45AM May 13, 2021Observed: 6.14 ft at 2:00AM May 13, 2021Observed: 6.14 ft at 2:15AM May 13, 2021Observed: 6.14 ft at 2:30AM May 13, 2021Observed: 6.14 ft at 2:45AM May 13, 2021Observed: 6.14 ft at 3:00AM May 13, 2021Observed: 6.14 ft at 3:15AM May 13, 2021Observed: 6.14 ft at 3:30AM May 13, 2021Observed: 6.13 ft at 3:45AM May 13, 2021Observed: 6.14 ft at 4:00AM May 13, 2021Observed: 6.14 ft at 4:15AM May 13, 2021Observed: 6.14 ft at 4:30AM May 13, 2021Observed: 6.13 ft at 4:45AM May 13, 2021Observed: 6.14 ft at 5:00AM May 13, 2021Observed: 6.14 ft at 5:15AM May 13, 2021Observed: 6.12 ft at 5:30AM May 13, 2021Observed: 6.13 ft at 5:45AM May 13, 2021Observed: 6.13 ft at 6:00AM May 13, 2021Observed: 6.12 ft at 6:15AM May 13, 2021Observed: 6.12 ft at 6:30AM May 13, 2021Observed: 6.12 ft at 6:45AM May 13, 2021Observed: 6.12 ft at 7:00AM May 13, 2021Observed: 6.12 ft at 7:15AM May 13, 2021Observed: 6.11 ft at 7:30AM May 13, 2021Observed: 6.11 ft at 7:45AM May 13, 2021Observed: 6.1 ft at 8:00AM May 13, 2021Observed: 6.1 ft at 8:15AM May 13, 2021Observed: 6.11 ft at 8:30AM May 13, 2021Observed: 6.11 ft at 8:45AM May 13, 2021Observed: 6.11 ft at 9:00AM May 13, 2021Observed: 6.11 ft at 9:15AM May 13, 2021Observed: 6.1 ft at 9:30AM May 13, 2021Observed: 6.1 ft at 9:45AM May 13, 2021Observed: 6.1 ft at 10:00AM May 13, 2021Observed: 6.11 ft at 10:15AM May 13, 2021Observed: 6.11 ft at 10:30AM May 13, 2021Observed: 6.1 ft at 10:45AM May 13, 2021Observed: 6.11 ft at 11:00AM May 13, 2021Observed: 6.11 ft at 11:15AM May 13, 2021Observed: 6.1 ft at 11:30AM May 13, 2021Observed: 6.09 ft at 11:45AM May 13, 2021Observed: 6.09 ft at 12:00PM May 13, 2021Observed: 6.1 ft at 12:15PM May 13, 2021Observed: 6.09 ft at 12:30PM May 13, 2021Observed: 6.11 ft at 12:45PM May 13, 2021Observed: 6.09 ft at 1:00PM May 13, 2021Observed: 6.1 ft at 1:15PM May 13, 2021Observed: 6.1 ft at 1:30PM May 13, 2021Observed: 6.1 ft at 1:45PM May 13, 2021Observed: 6.1 ft at 2:00PM May 13, 2021Observed: 6.09 ft at 2:15PM May 13, 2021Observed: 6.1 ft at 2:30PM May 13, 2021Observed: 6.09 ft at 2:45PM May 13, 2021Observed: 6.1 ft at 3:00PM May 13, 2021Observed: 6.1 ft at 3:15PM May 13, 2021Observed: 6.09 ft at 3:30PM May 13, 2021Observed: 6.1 ft at 3:45PM May 13, 2021Observed: 6.09 ft at 4:00PM May 13, 2021Observed: 6.09 ft at 4:15PM May 13, 2021Observed: 6.09 ft at 4:30PM May 13, 2021Observed: 6.09 ft at 4:45PM May 13, 2021Observed: 6.09 ft at 5:00PM May 13, 2021Observed: 6.09 ft at 5:15PM May 13, 2021Observed: 6.09 ft at 5:30PM May 13, 2021Observed: 6.1 ft at 5:45PM May 13, 2021Observed: 6.08 ft at 6:00PM May 13, 2021Observed: 6.08 ft at 6:15PM May 13, 2021Observed: 6.09 ft at 6:30PM May 13, 2021Observed: 6.09 ft at 6:45PM May 13, 2021Observed: 6.08 ft at 7:00PM May 13, 2021Observed: 6.08 ft at 7:15PM May 13, 2021Observed: 6.08 ft at 7:30PM May 13, 2021Observed: 6.07 ft at 7:45PM May 13, 2021Observed: 6.07 ft at 8:00PM May 13, 2021Observed: 6.08 ft at 8:15PM May 13, 2021Observed: 6.08 ft at 8:30PM May 13, 2021Observed: 6.08 ft at 8:45PM May 13, 2021Observed: 6.08 ft at 9:00PM May 13, 2021Observed: 6.07 ft at 9:15PM May 13, 2021Observed: 6.08 ft at 9:30PM May 13, 2021Observed: 6.08 ft at 9:45PM May 13, 2021Observed: 6.08 ft at 10:00PM May 13, 2021Observed: 6.08 ft at 10:15PM May 13, 2021Observed: 6.07 ft at 10:30PM May 13, 2021Observed: 6.07 ft at 10:45PM May 13, 2021Observed: 6.07 ft at 11:00PM May 13, 2021Observed: 6.07 ft at 11:15PM May 13, 2021Observed: 6.07 ft at 11:30PM May 13, 2021Observed: 6.07 ft at 11:45PM May 13, 2021Observed: 6.06 ft at 12:00AM May 14, 2021Observed: 6.07 ft at 12:15AM May 14, 2021Observed: 6.07 ft at 12:30AM May 14, 2021Observed: 6.06 ft at 12:45AM May 14, 2021Observed: 6.07 ft at 1:00AM May 14, 2021Observed: 6.06 ft at 1:15AM May 14, 2021Observed: 6.06 ft at 1:30AM May 14, 2021Observed: 6.07 ft at 1:45AM May 14, 2021Observed: 6.06 ft at 2:00AM May 14, 2021Observed: 6.06 ft at 2:15AM May 14, 2021Observed: 6.06 ft at 2:30AM May 14, 2021Observed: 6.06 ft at 2:45AM May 14, 2021Observed: 6.05 ft at 3:00AM May 14, 2021Observed: 6.05 ft at 3:15AM May 14, 2021Observed: 6.06 ft at 3:30AM May 14, 2021Observed: 6.06 ft at 3:45AM May 14, 2021Observed: 6.06 ft at 4:00AM May 14, 2021Observed: 6.05 ft at 4:15AM May 14, 2021Observed: 6.05 ft at 4:30AM May 14, 2021Observed: 6.05 ft at 4:45AM May 14, 2021Observed: 6.05 ft at 5:00AM May 14, 2021Observed: 6.05 ft at 5:15AM May 14, 2021Observed: 6.04 ft at 5:30AM May 14, 2021Observed: 6.04 ft at 5:45AM May 14, 2021Observed: 6.03 ft at 6:00AM May 14, 2021Observed: 6.03 ft at 6:15AM May 14, 2021Observed: 6.04 ft at 6:30AM May 14, 2021Observed: 6.04 ft at 6:45AM May 14, 2021Observed: 6.02 ft at 7:00AM May 14, 2021Observed: 6.03 ft at 7:15AM May 14, 2021Observed: 6.03 ft at 7:30AM May 14, 2021Observed: 6.02 ft at 7:45AM May 14, 2021Observed: 6.02 ft at 8:00AM May 14, 2021Observed: 6.02 ft at 8:15AM May 14, 2021Observed: 6.02 ft at 8:30AM May 14, 2021Observed: 6.02 ft at 8:45AM May 14, 2021Observed: 6.02 ft at 9:00AM May 14, 2021Observed: 6.01 ft at 9:15AM May 14, 2021Observed: 6.01 ft at 9:30AM May 14, 2021Observed: 6.01 ft at 9:45AM May 14, 2021Observed: 6.01 ft at 10:00AM May 14, 2021Observed: 6.01 ft at 10:15AM May 14, 2021Observed: 6.01 ft at 10:30AM May 14, 2021Observed: 6.01 ft at 10:45AM May 14, 2021Observed: 6.01 ft at 11:00AM May 14, 2021Observed: 6.01 ft at 11:15AM May 14, 2021Observed: 6 ft at 11:30AM May 14, 2021Observed: 6.01 ft at 11:45AM May 14, 2021Observed: 6.01 ft at 12:00PM May 14, 2021Observed: 6.01 ft at 12:15PM May 14, 2021Observed: 6.01 ft at 12:30PM May 14, 2021Observed: 6.01 ft at 12:45PM May 14, 2021Observed: 6.01 ft at 1:00PM May 14, 2021Observed: 6 ft at 1:15PM May 14, 2021Observed: 6 ft at 1:30PM May 14, 2021Observed: 6 ft at 1:45PM May 14, 2021Observed: 6.01 ft at 2:00PM May 14, 2021Observed: 6 ft at 2:15PM May 14, 2021Observed: 6 ft at 2:30PM May 14, 2021Observed: 6 ft at 2:45PM May 14, 2021Observed: 5.99 ft at 3:00PM May 14, 2021Observed: 6 ft at 3:15PM May 14, 2021Observed: 6 ft at 3:30PM May 14, 2021Observed: 5.99 ft at 3:45PM May 14, 2021Observed: 6 ft at 4:00PM May 14, 2021Observed: 5.99 ft at 4:15PM May 14, 2021Observed: 6 ft at 4:30PM May 14, 2021Observed: 5.99 ft at 4:45PM May 14, 2021Observed: 5.99 ft at 5:00PM May 14, 2021Observed: 5.99 ft at 5:15PM May 14, 2021Observed: 6 ft at 5:30PM May 14, 2021Observed: 5.99 ft at 5:45PM May 14, 2021Observed: 6 ft at 6:00PM May 14, 2021Observed: 5.99 ft at 6:15PM May 14, 2021Observed: 5.99 ft at 6:30PM May 14, 2021Observed: 5.99 ft at 6:45PM May 14, 2021Observed: 5.99 ft at 7:00PM May 14, 2021Observed: 6 ft at 7:15PM May 14, 2021Observed: 5.98 ft at 7:30PM May 14, 2021Observed: 5.99 ft at 7:45PM May 14, 2021Observed: 5.99 ft at 8:00PM May 14, 2021Observed: 5.98 ft at 8:15PM May 14, 2021Observed: 5.99 ft at 8:30PM May 14, 2021Observed: 5.98 ft at 8:45PM May 14, 2021Observed: 5.98 ft at 9:00PM May 14, 2021Observed: 5.99 ft at 9:15PM May 14, 2021Observed: 5.98 ft at 9:30PM May 14, 2021Observed: 5.98 ft at 9:45PM May 14, 2021Observed: 5.98 ft at 10:00PM May 14, 2021Observed: 5.98 ft at 10:15PM May 14, 2021Observed: 5.98 ft at 10:30PM May 14, 2021Observed: 5.98 ft at 10:45PM May 14, 2021Observed: 5.98 ft at 11:00PM May 14, 2021Observed: 5.97 ft at 11:15PM May 14, 2021Observed: 5.98 ft at 11:30PM May 14, 2021Observed: 5.98 ft at 11:45PM May 14, 2021Observed: 5.97 ft at 12:00AM May 15, 2021Observed: 5.97 ft at 12:15AM May 15, 2021Observed: 5.97 ft at 12:30AM May 15, 2021Observed: 5.98 ft at 12:45AM May 15, 2021Observed: 5.98 ft at 1:00AM May 15, 2021Observed: 5.98 ft at 1:15AM May 15, 2021Observed: 5.97 ft at 1:30AM May 15, 2021Observed: 5.97 ft at 1:45AM May 15, 2021Observed: 5.98 ft at 2:00AM May 15, 2021Observed: 5.97 ft at 2:15AM May 15, 2021Observed: 5.97 ft at 2:30AM May 15, 2021Observed: 5.97 ft at 2:45AM May 15, 2021Observed: 5.97 ft at 3:00AM May 15, 2021Observed: 5.97 ft at 3:15AM May 15, 2021Observed: 5.97 ft at 3:30AM May 15, 2021Observed: 5.97 ft at 3:45AM May 15, 2021Observed: 5.97 ft at 4:00AM May 15, 2021Observed: 5.97 ft at 4:15AM May 15, 2021Observed: 5.97 ft at 4:30AM May 15, 2021Observed: 5.96 ft at 4:45AM May 15, 2021Observed: 5.96 ft at 5:00AM May 15, 2021Observed: 5.96 ft at 5:15AM May 15, 2021Observed: 5.96 ft at 5:30AM May 15, 2021Observed: 5.97 ft at 5:45AM May 15, 2021Observed: 5.96 ft at 6:00AM May 15, 2021Observed: 5.96 ft at 6:15AM May 15, 2021Observed: 5.96 ft at 6:30AM May 15, 2021Observed: 5.96 ft at 6:45AM May 15, 2021Observed: 5.96 ft at 7:00AM May 15, 2021Observed: 5.96 ft at 7:15AM May 15, 2021Observed: 5.96 ft at 7:30AM May 15, 2021Observed: 5.96 ft at 7:45AM May 15, 2021Observed: 5.96 ft at 8:00AM May 15, 2021Observed: 5.96 ft at 8:15AM May 15, 2021Observed: 5.95 ft at 8:30AM May 15, 2021Observed: 5.96 ft at 8:45AM May 15, 2021Observed: 5.96 ft at 9:00AM May 15, 2021Observed: 5.96 ft at 9:15AM May 15, 2021Observed: 5.96 ft at 9:30AM May 15, 2021Observed: 5.97 ft at 9:45AM May 15, 2021Observed: 5.96 ft at 10:00AM May 15, 2021Observed: 5.95 ft at 10:15AM May 15, 2021Observed: 5.96 ft at 10:30AM May 15, 2021Observed: 5.97 ft at 10:45AM May 15, 2021Observed: 5.95 ft at 11:00AM May 15, 2021Observed: 5.96 ft at 11:15AM May 15, 2021Observed: 5.95 ft at 11:30AM May 15, 2021Observed: 5.95 ft at 11:45AM May 15, 2021Observed: 5.96 ft at 12:00PM May 15, 2021Observed: 5.96 ft at 12:15PM May 15, 2021Observed: 5.96 ft at 12:30PM May 15, 2021Observed: 5.95 ft at 12:45PM May 15, 2021Observed: 5.96 ft at 1:00PM May 15, 2021Observed: 5.96 ft at 1:15PM May 15, 2021Observed: 5.96 ft at 1:30PM May 15, 2021Observed: 5.95 ft at 1:45PM May 15, 2021Observed: 5.96 ft at 2:00PM May 15, 2021Observed: 5.95 ft at 2:15PM May 15, 2021Observed: 5.95 ft at 2:30PM May 15, 2021Observed: 5.96 ft at 2:45PM May 15, 2021Observed: 5.96 ft at 3:00PM May 15, 2021Observed: 5.95 ft at 3:15PM May 15, 2021Observed: 5.96 ft at 3:30PM May 15, 2021Observed: 5.95 ft at 3:45PM May 15, 2021Observed: 5.96 ft at 4:00PM May 15, 2021USGS--Water Resources of the United StatesERDM2(plotting HGIRZ) Graph Created (4:41PM May 15, 2021)ObservedLatest observed value: 5.96 ft at 4:00 PM EDT 15-May-2021. Flood Stage is 15 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Patapsco River near Elkridge at Patapsco Valley State Park. Only observed stages are available for this point.
Return to Area Map
Upstream Gauge - near Catonsville Upstream Gauge Downstream Gauge Downstream Gauge - near Elkridge below Patapsco Valley State Park
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 19
Flood Stage: 15
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
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
If you notice any errors in the below information, please contact our Webmaster
21 Water approaches structures.
20 Washington Boulevard begins to flood at the Elkridge/Halethorpe border.
19 Water covers the entrance park at Patapsco Valley State Park.
17 A low spot near the end of Levering Avenue begins to flood.
15 Water begins to cover a portion of River Road in Patapsco Valley State Park. Large portions of the park begin to flood near the playground off Gunn Road.
10 Water begins to cover riverside trails in Patapsco Valley State Park.
9 Water spills over the banks but no impacts are observed.
About This Location Collapse

Latitude: 39.227222° N, Longitude: 76.723056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 15 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 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  

Current/Historical Observations:

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(703) 996-2200
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Page last modified: 2-Nov-2020 7:30 PM
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