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Hydrograph River at a Glance Download
Western Branch at Upper Marlboro Stage (ft)Flow (cfs)Observed: 4.24 ft at 9:00AM May 16, 2018Observed: 4.21 ft at 9:15AM May 16, 2018Observed: 4.19 ft at 9:30AM May 16, 2018Observed: 4.17 ft at 9:45AM May 16, 2018Observed: 4.16 ft at 10:00AM May 16, 2018Observed: 4.13 ft at 10:15AM May 16, 2018Observed: 4.1 ft at 10:30AM May 16, 2018Observed: 4.08 ft at 10:45AM May 16, 2018Observed: 4.05 ft at 11:00AM May 16, 2018Observed: 4.03 ft at 11:15AM May 16, 2018Observed: 4 ft at 11:30AM May 16, 2018Observed: 3.96 ft at 11:45AM May 16, 2018Observed: 3.94 ft at 12:00PM May 16, 2018Observed: 3.92 ft at 12:15PM May 16, 2018Observed: 3.89 ft at 12:30PM May 16, 2018Observed: 3.87 ft at 12:45PM May 16, 2018Observed: 3.84 ft at 1:00PM May 16, 2018Observed: 3.81 ft at 1:15PM May 16, 2018Observed: 3.78 ft at 1:30PM May 16, 2018Observed: 3.75 ft at 1:45PM May 16, 2018Observed: 3.72 ft at 2:00PM May 16, 2018Observed: 3.69 ft at 2:15PM May 16, 2018Observed: 3.67 ft at 2:30PM May 16, 2018Observed: 3.64 ft at 2:45PM May 16, 2018Observed: 3.62 ft at 3:00PM May 16, 2018Observed: 3.61 ft at 3:15PM May 16, 2018Observed: 3.59 ft at 3:30PM May 16, 2018Observed: 3.57 ft at 3:45PM May 16, 2018Observed: 3.54 ft at 4:00PM May 16, 2018Observed: 3.53 ft at 4:15PM May 16, 2018Observed: 3.52 ft at 4:30PM May 16, 2018Observed: 3.51 ft at 4:45PM May 16, 2018Observed: 3.51 ft at 5:00PM May 16, 2018Observed: 3.51 ft at 5:15PM May 16, 2018Observed: 3.5 ft at 5:30PM May 16, 2018Observed: 3.51 ft at 5:45PM May 16, 2018Observed: 3.52 ft at 6:00PM May 16, 2018Observed: 3.53 ft at 6:15PM May 16, 2018Observed: 3.56 ft at 6:30PM May 16, 2018Observed: 3.59 ft at 6:45PM May 16, 2018Observed: 3.63 ft at 7:00PM May 16, 2018Observed: 3.68 ft at 7:15PM May 16, 2018Observed: 3.72 ft at 7:30PM May 16, 2018Observed: 3.77 ft at 7:45PM May 16, 2018Observed: 3.85 ft at 8:00PM May 16, 2018Observed: 3.95 ft at 8:15PM May 16, 2018Observed: 4.09 ft at 8:30PM May 16, 2018Observed: 4.22 ft at 8:45PM May 16, 2018Observed: 4.4 ft at 9:00PM May 16, 2018Observed: 4.57 ft at 9:15PM May 16, 2018Observed: 4.78 ft at 9:30PM May 16, 2018Observed: 5 ft at 9:45PM May 16, 2018Observed: 5.22 ft at 10:00PM May 16, 2018Observed: 5.4 ft at 10:15PM May 16, 2018Observed: 5.55 ft at 10:30PM May 16, 2018Observed: 5.68 ft at 10:45PM May 16, 2018Observed: 5.83 ft at 11:00PM May 16, 2018Observed: 6 ft at 11:15PM May 16, 2018Observed: 6.16 ft at 11:30PM May 16, 2018Observed: 6.33 ft at 11:45PM May 16, 2018Observed: 6.48 ft at 12:00AM May 17, 2018Observed: 6.67 ft at 12:15AM May 17, 2018Observed: 6.85 ft at 12:30AM May 17, 2018Observed: 6.98 ft at 12:45AM May 17, 2018Observed: 7.13 ft at 1:00AM May 17, 2018Observed: 7.24 ft at 1:15AM May 17, 2018Observed: 7.37 ft at 1:30AM May 17, 2018Observed: 7.48 ft at 1:45AM May 17, 2018Observed: 7.58 ft at 2:00AM May 17, 2018Observed: 7.66 ft at 2:15AM May 17, 2018Observed: 7.75 ft at 2:30AM May 17, 2018Observed: 7.8 ft at 2:45AM May 17, 2018Observed: 7.84 ft at 3:00AM May 17, 2018Observed: 7.91 ft at 3:15AM May 17, 2018Observed: 7.99 ft at 3:30AM May 17, 2018Observed: 8.04 ft at 3:45AM May 17, 2018Observed: 8.08 ft at 4:00AM May 17, 2018Observed: 8.15 ft at 4:15AM May 17, 2018Observed: 8.21 ft at 4:30AM May 17, 2018Observed: 8.24 ft at 4:45AM May 17, 2018Observed: 8.33 ft at 5:00AM May 17, 2018Observed: 8.35 ft at 5:15AM May 17, 2018Observed: 8.39 ft at 5:30AM May 17, 2018Observed: 8.45 ft at 5:45AM May 17, 2018Observed: 8.48 ft at 6:00AM May 17, 2018Observed: 8.52 ft at 6:15AM May 17, 2018Observed: 8.55 ft at 6:30AM May 17, 2018Observed: 8.59 ft at 6:45AM May 17, 2018Observed: 8.63 ft at 7:00AM May 17, 2018Observed: 8.69 ft at 7:15AM May 17, 2018Observed: 8.71 ft at 7:30AM May 17, 2018Observed: 8.74 ft at 7:45AM May 17, 2018Observed: 8.76 ft at 8:00AM May 17, 2018Observed: 8.81 ft at 8:15AM May 17, 2018Observed: 8.81 ft at 8:30AM May 17, 2018Observed: 8.87 ft at 8:45AM May 17, 2018Observed: 8.89 ft at 9:00AM May 17, 2018Observed: 8.94 ft at 9:15AM May 17, 2018Observed: 8.96 ft at 9:30AM May 17, 2018Observed: 9 ft at 9:45AM May 17, 2018Observed: 9.04 ft at 10:00AM May 17, 2018Observed: 9.07 ft at 10:15AM May 17, 2018Observed: 9.11 ft at 10:30AM May 17, 2018Observed: 9.15 ft at 10:45AM May 17, 2018Observed: 9.18 ft at 11:00AM May 17, 2018Observed: 9.2 ft at 11:15AM May 17, 2018Observed: 9.29 ft at 11:30AM May 17, 2018Observed: 9.33 ft at 11:45AM May 17, 2018Observed: 9.37 ft at 12:00PM May 17, 2018Observed: 9.44 ft at 12:15PM May 17, 2018Observed: 9.47 ft at 12:30PM May 17, 2018Observed: 9.5 ft at 12:45PM May 17, 2018Observed: 9.55 ft at 1:00PM May 17, 2018Observed: 9.62 ft at 1:15PM May 17, 2018Observed: 9.66 ft at 1:30PM May 17, 2018Observed: 9.69 ft at 1:45PM May 17, 2018Observed: 9.77 ft at 2:00PM May 17, 2018Observed: 9.79 ft at 2:15PM May 17, 2018Observed: 9.83 ft at 2:30PM May 17, 2018Observed: 9.87 ft at 2:45PM May 17, 2018Observed: 9.92 ft at 3:00PM May 17, 2018Observed: 9.94 ft at 3:15PM May 17, 2018Observed: 9.95 ft at 3:30PM May 17, 2018Observed: 10 ft at 3:45PM May 17, 2018Observed: 10.07 ft at 4:00PM May 17, 2018Observed: 10.07 ft at 4:15PM May 17, 2018Observed: 10.07 ft at 4:30PM May 17, 2018Observed: 10.09 ft at 4:45PM May 17, 2018Observed: 10.13 ft at 5:00PM May 17, 2018Observed: 10.16 ft at 5:15PM May 17, 2018Observed: 10.19 ft at 5:30PM May 17, 2018Observed: 10.22 ft at 5:45PM May 17, 2018Observed: 10.25 ft at 6:00PM May 17, 2018Observed: 10.26 ft at 6:15PM May 17, 2018Observed: 10.3 ft at 6:30PM May 17, 2018Observed: 10.33 ft at 6:45PM May 17, 2018Observed: 10.36 ft at 7:00PM May 17, 2018Observed: 10.38 ft at 7:15PM May 17, 2018Observed: 10.42 ft at 7:30PM May 17, 2018Observed: 10.45 ft at 7:45PM May 17, 2018Observed: 10.49 ft at 8:00PM May 17, 2018Observed: 10.5 ft at 8:15PM May 17, 2018Observed: 10.54 ft at 8:30PM May 17, 2018Observed: 10.58 ft at 8:45PM May 17, 2018Observed: 10.62 ft at 9:00PM May 17, 2018Observed: 10.66 ft at 9:15PM May 17, 2018Observed: 10.67 ft at 9:30PM May 17, 2018Observed: 10.69 ft at 9:45PM May 17, 2018Observed: 10.72 ft at 10:00PM May 17, 2018Observed: 10.74 ft at 10:15PM May 17, 2018Observed: 10.79 ft at 10:30PM May 17, 2018Observed: 10.8 ft at 10:45PM May 17, 2018Observed: 10.82 ft at 11:00PM May 17, 2018Observed: 10.84 ft at 11:15PM May 17, 2018Observed: 10.88 ft at 11:30PM May 17, 2018Observed: 10.9 ft at 11:45PM May 17, 2018Observed: 10.92 ft at 12:00AM May 18, 2018Observed: 10.95 ft at 12:15AM May 18, 2018Observed: 10.98 ft at 12:30AM May 18, 2018Observed: 11.01 ft at 12:45AM May 18, 2018Observed: 11.03 ft at 1:00AM May 18, 2018Observed: 11.06 ft at 1:15AM May 18, 2018Observed: 11.1 ft at 1:30AM May 18, 2018Observed: 11.12 ft at 1:45AM May 18, 2018Observed: 11.17 ft at 2:00AM May 18, 2018Observed: 11.17 ft at 2:15AM May 18, 2018Observed: 11.22 ft at 2:30AM May 18, 2018Observed: 11.25 ft at 2:45AM May 18, 2018Observed: 11.53 ft at 3:00AM May 18, 2018Observed: 11.65 ft at 3:15AM May 18, 2018Observed: 11.69 ft at 3:30AM May 18, 2018Observed: 11.8 ft at 3:45AM May 18, 2018Observed: 11.83 ft at 4:00AM May 18, 2018Observed: 11.86 ft at 4:15AM May 18, 2018Observed: 11.89 ft at 4:30AM May 18, 2018Observed: 11.91 ft at 4:45AM May 18, 2018Observed: 11.92 ft at 5:00AM May 18, 2018Observed: 11.94 ft at 5:15AM May 18, 2018Observed: 12.04 ft at 5:30AM May 18, 2018Observed: 12.06 ft at 5:45AM May 18, 2018Observed: 12.11 ft at 6:00AM May 18, 2018Observed: 12.12 ft at 6:15AM May 18, 2018Observed: 12.16 ft at 6:30AM May 18, 2018Observed: 12.18 ft at 6:45AM May 18, 2018Observed: 12.19 ft at 7:00AM May 18, 2018Observed: 12.22 ft at 7:15AM May 18, 2018Observed: 12.26 ft at 7:30AM May 18, 2018Observed: 12.3 ft at 7:45AM May 18, 2018Observed: 12.34 ft at 8:00AM May 18, 2018Observed: 12.38 ft at 8:15AM May 18, 2018Observed: 12.42 ft at 8:30AM May 18, 2018Observed: 12.45 ft at 8:45AM May 18, 2018Observed: 12.47 ft at 9:00AM May 18, 2018Observed: 12.52 ft at 9:15AM May 18, 2018Observed: 12.54 ft at 9:30AM May 18, 2018Observed: 12.56 ft at 9:45AM May 18, 2018Observed: 12.57 ft at 10:00AM May 18, 2018Observed: 12.58 ft at 10:15AM May 18, 2018Observed: 12.59 ft at 10:30AM May 18, 2018Observed: 12.62 ft at 10:45AM May 18, 2018Observed: 12.62 ft at 11:00AM May 18, 2018Observed: 12.64 ft at 11:15AM May 18, 2018Observed: 12.64 ft at 11:30AM May 18, 2018Observed: 12.65 ft at 11:45AM May 18, 2018Observed: 12.66 ft at 12:00PM May 18, 2018Observed: 12.68 ft at 12:15PM May 18, 2018Observed: 12.69 ft at 12:30PM May 18, 2018Observed: 12.68 ft at 12:45PM May 18, 2018Observed: 12.7 ft at 1:00PM May 18, 2018Observed: 12.7 ft at 1:15PM May 18, 2018Observed: 12.71 ft at 1:30PM May 18, 2018Observed: 12.72 ft at 1:45PM May 18, 2018Highest Observation: 12.73 ft at 2:00PM May 18, 2018Observed: 12.72 ft at 2:15PM May 18, 2018Observed: 12.72 ft at 2:30PM May 18, 2018Observed: 12.72 ft at 2:45PM May 18, 2018Observed: 12.71 ft at 3:00PM May 18, 2018Observed: 12.72 ft at 3:15PM May 18, 2018Observed: 12.71 ft at 3:30PM May 18, 2018Observed: 12.72 ft at 3:45PM May 18, 2018Observed: 12.71 ft at 4:00PM May 18, 2018Observed: 12.69 ft at 4:15PM May 18, 2018Observed: 12.7 ft at 4:30PM May 18, 2018Observed: 12.7 ft at 4:45PM May 18, 2018Observed: 12.69 ft at 5:00PM May 18, 2018Observed: 12.69 ft at 5:15PM May 18, 2018Observed: 12.69 ft at 5:30PM May 18, 2018Observed: 12.69 ft at 5:45PM May 18, 2018Observed: 12.69 ft at 6:00PM May 18, 2018Observed: 12.68 ft at 6:15PM May 18, 2018Observed: 12.68 ft at 6:30PM May 18, 2018Observed: 12.69 ft at 6:45PM May 18, 2018Observed: 12.7 ft at 7:00PM May 18, 2018Observed: 12.7 ft at 7:15PM May 18, 2018Observed: 12.69 ft at 7:30PM May 18, 2018Observed: 12.69 ft at 7:45PM May 18, 2018Observed: 12.69 ft at 8:00PM May 18, 2018Observed: 12.69 ft at 8:15PM May 18, 2018Observed: 12.69 ft at 8:30PM May 18, 2018Observed: 12.68 ft at 8:45PM May 18, 2018Observed: 12.68 ft at 9:00PM May 18, 2018Observed: 12.67 ft at 9:15PM May 18, 2018Observed: 12.67 ft at 9:30PM May 18, 2018Observed: 12.67 ft at 9:45PM May 18, 2018Observed: 12.67 ft at 10:00PM May 18, 2018Observed: 12.66 ft at 10:15PM May 18, 2018Observed: 12.67 ft at 10:30PM May 18, 2018Observed: 12.67 ft at 10:45PM May 18, 2018Observed: 12.66 ft at 11:00PM May 18, 2018Observed: 12.67 ft at 11:15PM May 18, 2018Observed: 12.66 ft at 11:30PM May 18, 2018Observed: 12.65 ft at 11:45PM May 18, 2018Observed: 12.65 ft at 12:00AM May 19, 2018Observed: 12.64 ft at 12:15AM May 19, 2018Observed: 12.64 ft at 12:30AM May 19, 2018Observed: 12.64 ft at 12:45AM May 19, 2018Observed: 12.64 ft at 1:00AM May 19, 2018Observed: 12.63 ft at 1:15AM May 19, 2018Observed: 12.62 ft at 1:30AM May 19, 2018Observed: 12.63 ft at 1:45AM May 19, 2018Observed: 12.62 ft at 2:00AM May 19, 2018Observed: 12.61 ft at 2:15AM May 19, 2018Observed: 12.6 ft at 2:30AM May 19, 2018Observed: 12.6 ft at 2:45AM May 19, 2018Observed: 12.61 ft at 3:00AM May 19, 2018Observed: 12.6 ft at 3:15AM May 19, 2018Observed: 12.59 ft at 3:30AM May 19, 2018Observed: 12.59 ft at 3:45AM May 19, 2018Observed: 12.57 ft at 4:00AM May 19, 2018Observed: 12.57 ft at 4:15AM May 19, 2018Observed: 12.56 ft at 4:30AM May 19, 2018Observed: 12.56 ft at 4:45AM May 19, 2018Observed: 12.55 ft at 5:00AM May 19, 2018Observed: 12.54 ft at 5:15AM May 19, 2018Observed: 12.54 ft at 5:30AM May 19, 2018Observed: 12.53 ft at 5:45AM May 19, 2018Observed: 12.53 ft at 6:00AM May 19, 2018Observed: 12.52 ft at 6:15AM May 19, 2018Observed: 12.52 ft at 6:30AM May 19, 2018Observed: 12.51 ft at 6:45AM May 19, 2018Observed: 12.52 ft at 7:00AM May 19, 2018Observed: 12.51 ft at 7:15AM May 19, 2018Observed: 12.5 ft at 7:30AM May 19, 2018Observed: 12.5 ft at 7:45AM May 19, 2018Observed: 12.49 ft at 8:00AM May 19, 2018Observed: 12.5 ft at 8:15AM May 19, 2018Observed: 12.49 ft at 8:30AM May 19, 2018Observed: 12.48 ft at 8:45AM May 19, 2018Observed: 12.48 ft at 9:00AM May 19, 2018Observed: 12.48 ft at 9:15AM May 19, 2018Observed: 12.46 ft at 9:30AM May 19, 2018Observed: 12.44 ft at 9:45AM May 19, 2018Observed: 12.43 ft at 10:00AM May 19, 2018Observed: 12.44 ft at 10:15AM May 19, 2018Observed: 12.43 ft at 10:30AM May 19, 2018Observed: 12.41 ft at 10:45AM May 19, 2018Observed: 12.41 ft at 11:00AM May 19, 2018Observed: 12.38 ft at 11:15AM May 19, 2018Observed: 12.37 ft at 11:30AM May 19, 2018Observed: 12.37 ft at 11:45AM May 19, 2018Observed: 12.37 ft at 12:00PM May 19, 2018Observed: 12.35 ft at 12:15PM May 19, 2018Observed: 12.35 ft at 12:30PM May 19, 2018Observed: 12.34 ft at 12:45PM May 19, 2018Observed: 12.32 ft at 1:00PM May 19, 2018Observed: 12.32 ft at 1:15PM May 19, 2018Observed: 12.3 ft at 1:30PM May 19, 2018Observed: 12.29 ft at 1:45PM May 19, 2018Observed: 12.28 ft at 2:00PM May 19, 2018Observed: 12.26 ft at 2:15PM May 19, 2018Observed: 12.26 ft at 2:30PM May 19, 2018Observed: 12.24 ft at 2:45PM May 19, 2018Observed: 12.23 ft at 3:00PM May 19, 2018Observed: 12.22 ft at 3:15PM May 19, 2018Observed: 12.21 ft at 3:30PM May 19, 2018Observed: 12.2 ft at 3:45PM May 19, 2018Observed: 12.2 ft at 4:00PM May 19, 2018Observed: 12.18 ft at 4:15PM May 19, 2018Observed: 12.17 ft at 4:30PM May 19, 2018Observed: 12.15 ft at 4:45PM May 19, 2018Observed: 12.14 ft at 5:00PM May 19, 2018Observed: 12.13 ft at 5:15PM May 19, 2018Observed: 12.11 ft at 5:30PM May 19, 2018Observed: 12.1 ft at 5:45PM May 19, 2018Observed: 12.08 ft at 6:00PM May 19, 2018Observed: 12.07 ft at 6:15PM May 19, 2018Observed: 12.07 ft at 6:30PM May 19, 2018Observed: 12.04 ft at 6:45PM May 19, 2018Observed: 12.02 ft at 7:00PM May 19, 2018Observed: 12.01 ft at 7:15PM May 19, 2018Observed: 11.99 ft at 7:30PM May 19, 2018Observed: 11.98 ft at 7:45PM May 19, 2018Observed: 11.95 ft at 8:00PM May 19, 2018Observed: 11.93 ft at 8:15PM May 19, 2018Observed: 11.92 ft at 8:30PM May 19, 2018Observed: 11.89 ft at 8:45PM May 19, 2018Observed: 11.87 ft at 9:00PM May 19, 2018Observed: 11.84 ft at 9:15PM May 19, 2018Observed: 11.82 ft at 9:30PM May 19, 2018Observed: 11.8 ft at 9:45PM May 19, 2018Observed: 11.78 ft at 10:00PM May 19, 2018Observed: 11.75 ft at 10:15PM May 19, 2018Observed: 11.73 ft at 10:30PM May 19, 2018Observed: 11.7 ft at 10:45PM May 19, 2018Observed: 11.67 ft at 11:00PM May 19, 2018Observed: 11.64 ft at 11:15PM May 19, 2018Observed: 11.6 ft at 11:30PM May 19, 2018Observed: 11.57 ft at 11:45PM May 19, 2018Observed: 11.54 ft at 12:00AM May 20, 2018Observed: 11.5 ft at 12:15AM May 20, 2018Observed: 11.47 ft at 12:30AM May 20, 2018Observed: 11.44 ft at 12:45AM May 20, 2018Observed: 11.39 ft at 1:00AM May 20, 2018Observed: 11.34 ft at 1:15AM May 20, 2018Observed: 11.31 ft at 1:30AM May 20, 2018Observed: 11.28 ft at 1:45AM May 20, 2018Observed: 11.24 ft at 2:00AM May 20, 2018Observed: 11.2 ft at 2:15AM May 20, 2018Observed: 11.11 ft at 2:30AM May 20, 2018Observed: 11.08 ft at 2:45AM May 20, 2018Observed: 11.02 ft at 3:00AM May 20, 2018Observed: 10.98 ft at 3:15AM May 20, 2018Observed: 10.91 ft at 3:30AM May 20, 2018Observed: 10.85 ft at 3:45AM May 20, 2018Observed: 10.78 ft at 4:00AM May 20, 2018Observed: 10.71 ft at 4:15AM May 20, 2018Observed: 10.68 ft at 4:30AM May 20, 2018Observed: 10.6 ft at 4:45AM May 20, 2018Observed: 10.56 ft at 5:00AM May 20, 2018Observed: 10.49 ft at 5:15AM May 20, 2018Observed: 10.4 ft at 5:30AM May 20, 2018Observed: 10.36 ft at 5:45AM May 20, 2018Observed: 10.29 ft at 6:00AM May 20, 2018Observed: 10.19 ft at 6:15AM May 20, 2018Observed: 10.17 ft at 6:30AM May 20, 2018Observed: 10.09 ft at 6:45AM May 20, 2018Observed: 10 ft at 7:00AM May 20, 2018Observed: 9.96 ft at 7:15AM May 20, 2018Observed: 9.86 ft at 7:30AM May 20, 2018Observed: 9.82 ft at 7:45AM May 20, 2018Observed: 9.74 ft at 8:00AM May 20, 2018Observed: 9.67 ft at 8:15AM May 20, 2018Observed: 9.59 ft at 8:30AM May 20, 2018Observed: 9.54 ft at 8:45AM May 20, 2018Observed: 9.44 ft at 9:00AM May 20, 2018Observed: 9.35 ft at 9:15AM May 20, 2018Observed: 9.28 ft at 9:30AM May 20, 2018Observed: 9.2 ft at 9:45AM May 20, 2018Observed: 9.12 ft at 10:00AM May 20, 2018Observed: 9.01 ft at 10:15AM May 20, 2018Observed: 8.92 ft at 10:30AM May 20, 2018Observed: 8.83 ft at 10:45AM May 20, 2018Observed: 8.86 ft at 11:00AM May 20, 2018Observed: 8.83 ft at 11:15AM May 20, 2018Observed: 8.78 ft at 11:30AM May 20, 2018Observed: 8.69 ft at 11:45AM May 20, 2018Observed: 8.6 ft at 12:00PM May 20, 2018Observed: 8.52 ft at 12:15PM May 20, 2018Observed: 8.43 ft at 12:30PM May 20, 2018Observed: 8.34 ft at 12:45PM May 20, 2018Observed: 8.24 ft at 1:00PM May 20, 2018Observed: 8.14 ft at 1:15PM May 20, 2018Observed: 8.05 ft at 1:30PM May 20, 2018Observed: 7.95 ft at 1:45PM May 20, 2018Observed: 7.86 ft at 2:00PM May 20, 2018Observed: 7.76 ft at 2:15PM May 20, 2018Observed: 7.67 ft at 2:30PM May 20, 2018Observed: 7.57 ft at 2:45PM May 20, 2018Observed: 7.48 ft at 3:00PM May 20, 2018Observed: 7.39 ft at 3:15PM May 20, 2018Observed: 7.3 ft at 3:30PM May 20, 2018Observed: 7.22 ft at 3:45PM May 20, 2018Observed: 7.13 ft at 4:00PM May 20, 2018Observed: 7.06 ft at 4:15PM May 20, 2018Observed: 6.97 ft at 4:30PM May 20, 2018Observed: 6.92 ft at 4:45PM May 20, 2018Observed: 6.82 ft at 5:00PM May 20, 2018Observed: 6.77 ft at 5:15PM May 20, 2018Observed: 6.69 ft at 5:30PM May 20, 2018Observed: 6.62 ft at 5:45PM May 20, 2018Observed: 6.56 ft at 6:00PM May 20, 2018Observed: 6.51 ft at 6:15PM May 20, 2018Observed: 6.44 ft at 6:30PM May 20, 2018Observed: 6.39 ft at 6:45PM May 20, 2018Observed: 6.32 ft at 7:00PM May 20, 2018Observed: 6.29 ft at 7:15PM May 20, 2018Observed: 6.25 ft at 7:30PM May 20, 2018Observed: 6.21 ft at 7:45PM May 20, 2018Observed: 6.17 ft at 8:00PM May 20, 2018Observed: 6.13 ft at 8:15PM May 20, 2018Observed: 6.09 ft at 8:30PM May 20, 2018Observed: 6.05 ft at 8:45PM May 20, 2018Observed: 6 ft at 9:00PM May 20, 2018Observed: 5.96 ft at 9:15PM May 20, 2018Observed: 5.92 ft at 9:30PM May 20, 2018Observed: 5.88 ft at 9:45PM May 20, 2018Observed: 5.85 ft at 10:00PM May 20, 2018Observed: 5.8 ft at 10:15PM May 20, 2018Observed: 5.77 ft at 10:30PM May 20, 2018Observed: 5.73 ft at 10:45PM May 20, 2018Observed: 5.69 ft at 11:00PM May 20, 2018Observed: 5.66 ft at 11:15PM May 20, 2018Observed: 5.62 ft at 11:30PM May 20, 2018Observed: 5.58 ft at 11:45PM May 20, 2018Observed: 5.55 ft at 12:00AM May 21, 2018Observed: 5.52 ft at 12:15AM May 21, 2018Observed: 5.49 ft at 12:30AM May 21, 2018Observed: 5.71 ft at 12:45AM May 21, 2018Observed: 5.79 ft at 1:00AM May 21, 2018Observed: 5.82 ft at 1:15AM May 21, 2018Observed: 5.85 ft at 1:30AM May 21, 2018Observed: 5.85 ft at 1:45AM May 21, 2018Observed: 5.84 ft at 2:00AM May 21, 2018Observed: 5.82 ft at 2:15AM May 21, 2018Observed: 5.81 ft at 2:30AM May 21, 2018Observed: 5.79 ft at 2:45AM May 21, 2018Observed: 5.77 ft at 3:00AM May 21, 2018Observed: 5.74 ft at 3:15AM May 21, 2018Observed: 5.72 ft at 3:30AM May 21, 2018Observed: 5.7 ft at 3:45AM May 21, 2018Observed: 5.68 ft at 4:00AM May 21, 2018Observed: 5.64 ft at 4:15AM May 21, 2018Observed: 5.61 ft at 4:30AM May 21, 2018Observed: 5.59 ft at 4:45AM May 21, 2018Observed: 5.56 ft at 5:00AM May 21, 2018Observed: 5.53 ft at 5:15AM May 21, 2018Observed: 5.49 ft at 5:30AM May 21, 2018Observed: 5.47 ft at 5:45AM May 21, 2018Observed: 5.45 ft at 6:00AM May 21, 2018Observed: 5.43 ft at 6:15AM May 21, 2018Observed: 5.41 ft at 6:30AM May 21, 2018Observed: 5.39 ft at 6:45AM May 21, 2018Observed: 5.37 ft at 7:00AM May 21, 2018Observed: 5.35 ft at 7:15AM May 21, 2018Observed: 5.33 ft at 7:30AM May 21, 2018Observed: 5.31 ft at 7:45AM May 21, 2018Observed: 5.28 ft at 8:00AM May 21, 2018Observed: 5.24 ft at 8:15AM May 21, 2018USGS--Water Resources of the United StatesUPRM2(plotting HGIRG) Graph Created (8:53AM May 21, 2018)ObservedLatest observed value: 5.24 ft at 8:15 AM EDT 21-May-2018. Flood Stage is 11 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 Western Branch at Upper Marlboro. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 19
Moderate Flood Stage: 16
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): 0

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
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21 More than a quarter mile of US 301 is flooded. Several businesses south of Maryland Route 4 are flooded with significant damage likely. A small portion of the lower grounds of the Prince Georges Equestrian Center floods. Water approaches the westernmost and lowermost portion of the Prince Georges County Courthouse.
19 US 301 begins to flood from the bridge northward to the intersection with Marlboro Square Shopping Center. Nearby businesses begin to flood. Marlboro Pike/Main Street also floods at the river, with water approaching nearby homes and businesses.
16 Floodwaters reach the parking lot of businesses off US 301. Water also approaches the southern perimeter of the Prince Georges Equestrian Center grounds.
14 Water covers almost all of the pedestrian bridge paralleling Water Street, and covers Water Street from the MD Route 4 westbound exit ramps to Judges Street.
12 Much of Race Track Road floods between Marlboro Pike and the community center.
11 The Water Street bridge in Upper Marlboro is completely covered by water.
9 Water begins to overflow the banks into the wide floodplain near Upper Marlboro.
About This Location Collapse

Latitude: 38.814167° N, Longitude: 76.748611° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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:

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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: 21-Dec-2016 10:38 PM
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