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Hydrograph River at a Glance Download
Difficult Run near Great Falls Stage (ft)Flow (cfs)Observed: 3.58 ft at 4:45PM Feb 12, 2020Observed: 3.57 ft at 5:00PM Feb 12, 2020Observed: 3.57 ft at 5:15PM Feb 12, 2020Observed: 3.57 ft at 5:30PM Feb 12, 2020Observed: 3.56 ft at 5:45PM Feb 12, 2020Observed: 3.56 ft at 6:00PM Feb 12, 2020Observed: 3.56 ft at 6:15PM Feb 12, 2020Observed: 3.56 ft at 6:30PM Feb 12, 2020Observed: 3.55 ft at 6:45PM Feb 12, 2020Observed: 3.55 ft at 7:00PM Feb 12, 2020Observed: 3.55 ft at 7:15PM Feb 12, 2020Observed: 3.55 ft at 7:30PM Feb 12, 2020Observed: 3.55 ft at 7:45PM Feb 12, 2020Observed: 3.55 ft at 8:00PM Feb 12, 2020Observed: 3.54 ft at 8:15PM Feb 12, 2020Observed: 3.54 ft at 8:30PM Feb 12, 2020Observed: 3.54 ft at 8:45PM Feb 12, 2020Observed: 3.54 ft at 9:00PM Feb 12, 2020Observed: 3.54 ft at 9:15PM Feb 12, 2020Observed: 3.54 ft at 9:30PM Feb 12, 2020Observed: 3.53 ft at 9:45PM Feb 12, 2020Observed: 3.53 ft at 10:00PM Feb 12, 2020Observed: 3.53 ft at 10:15PM Feb 12, 2020Observed: 3.53 ft at 10:30PM Feb 12, 2020Observed: 3.53 ft at 10:45PM Feb 12, 2020Observed: 3.53 ft at 11:00PM Feb 12, 2020Observed: 3.53 ft at 11:15PM Feb 12, 2020Observed: 3.53 ft at 11:30PM Feb 12, 2020Observed: 3.53 ft at 11:45PM Feb 12, 2020Observed: 3.54 ft at 12:00AM Feb 13, 2020Observed: 3.54 ft at 12:15AM Feb 13, 2020Observed: 3.54 ft at 12:30AM Feb 13, 2020Observed: 3.54 ft at 12:45AM Feb 13, 2020Observed: 3.55 ft at 1:00AM Feb 13, 2020Observed: 3.55 ft at 1:15AM Feb 13, 2020Observed: 3.56 ft at 1:30AM Feb 13, 2020Observed: 3.57 ft at 1:45AM Feb 13, 2020Observed: 3.58 ft at 2:00AM Feb 13, 2020Observed: 3.6 ft at 2:15AM Feb 13, 2020Observed: 3.62 ft at 2:30AM Feb 13, 2020Observed: 3.63 ft at 2:45AM Feb 13, 2020Observed: 3.65 ft at 3:00AM Feb 13, 2020Observed: 3.65 ft at 3:15AM Feb 13, 2020Observed: 3.66 ft at 3:30AM Feb 13, 2020Observed: 3.66 ft at 3:45AM Feb 13, 2020Observed: 3.66 ft at 4:00AM Feb 13, 2020Observed: 3.66 ft at 4:15AM Feb 13, 2020Observed: 3.65 ft at 4:30AM Feb 13, 2020Observed: 3.65 ft at 4:45AM Feb 13, 2020Observed: 3.65 ft at 5:00AM Feb 13, 2020Observed: 3.65 ft at 5:15AM Feb 13, 2020Observed: 3.64 ft at 5:30AM Feb 13, 2020Observed: 3.64 ft at 5:45AM Feb 13, 2020Observed: 3.64 ft at 6:00AM Feb 13, 2020Observed: 3.64 ft at 6:15AM Feb 13, 2020Observed: 3.64 ft at 6:30AM Feb 13, 2020Observed: 3.65 ft at 6:45AM Feb 13, 2020Observed: 3.65 ft at 7:00AM Feb 13, 2020Observed: 3.65 ft at 7:15AM Feb 13, 2020Observed: 3.65 ft at 7:30AM Feb 13, 2020Observed: 3.65 ft at 7:45AM Feb 13, 2020Observed: 3.64 ft at 8:00AM Feb 13, 2020Observed: 3.64 ft at 8:15AM Feb 13, 2020Observed: 3.64 ft at 8:30AM Feb 13, 2020Observed: 3.63 ft at 8:45AM Feb 13, 2020Observed: 3.63 ft at 9:00AM Feb 13, 2020Observed: 3.62 ft at 9:15AM Feb 13, 2020Observed: 3.62 ft at 9:30AM Feb 13, 2020Observed: 3.62 ft at 9:45AM Feb 13, 2020Observed: 3.62 ft at 10:00AM Feb 13, 2020Observed: 3.62 ft at 10:15AM Feb 13, 2020Observed: 3.62 ft at 10:30AM Feb 13, 2020Observed: 3.62 ft at 10:45AM Feb 13, 2020Observed: 3.63 ft at 11:00AM Feb 13, 2020Observed: 3.63 ft at 11:15AM Feb 13, 2020Observed: 3.64 ft at 11:30AM Feb 13, 2020Observed: 3.64 ft at 11:45AM Feb 13, 2020Observed: 3.65 ft at 12:00PM Feb 13, 2020Observed: 3.66 ft at 12:15PM Feb 13, 2020Observed: 3.67 ft at 12:30PM Feb 13, 2020Observed: 3.68 ft at 12:45PM Feb 13, 2020Observed: 3.7 ft at 1:00PM Feb 13, 2020Observed: 3.74 ft at 1:15PM Feb 13, 2020Observed: 3.76 ft at 1:30PM Feb 13, 2020Observed: 3.78 ft at 1:45PM Feb 13, 2020Observed: 3.8 ft at 2:00PM Feb 13, 2020Observed: 3.82 ft at 2:15PM Feb 13, 2020Observed: 3.83 ft at 2:30PM Feb 13, 2020Observed: 3.85 ft at 2:45PM Feb 13, 2020Observed: 3.86 ft at 3:00PM Feb 13, 2020Observed: 3.88 ft at 3:15PM Feb 13, 2020Observed: 3.9 ft at 3:30PM Feb 13, 2020Observed: 3.92 ft at 3:45PM Feb 13, 2020Observed: 3.93 ft at 4:00PM Feb 13, 2020Observed: 3.93 ft at 4:15PM Feb 13, 2020Highest Observation: 3.94 ft at 4:30PM Feb 13, 2020Highest Observation: 3.94 ft at 4:45PM Feb 13, 2020Highest Observation: 3.94 ft at 5:00PM Feb 13, 2020Observed: 3.93 ft at 5:15PM Feb 13, 2020Observed: 3.93 ft at 5:30PM Feb 13, 2020Observed: 3.93 ft at 5:45PM Feb 13, 2020Observed: 3.93 ft at 6:00PM Feb 13, 2020Observed: 3.92 ft at 6:15PM Feb 13, 2020Observed: 3.92 ft at 6:30PM Feb 13, 2020Observed: 3.92 ft at 6:45PM Feb 13, 2020Observed: 3.92 ft at 7:00PM Feb 13, 2020Observed: 3.91 ft at 7:15PM Feb 13, 2020Observed: 3.91 ft at 7:30PM Feb 13, 2020Observed: 3.9 ft at 7:45PM Feb 13, 2020Observed: 3.89 ft at 8:00PM Feb 13, 2020Observed: 3.88 ft at 8:15PM Feb 13, 2020Observed: 3.87 ft at 8:30PM Feb 13, 2020Observed: 3.86 ft at 8:45PM Feb 13, 2020Observed: 3.85 ft at 9:00PM Feb 13, 2020Observed: 3.84 ft at 9:15PM Feb 13, 2020Observed: 3.82 ft at 9:30PM Feb 13, 2020Observed: 3.81 ft at 9:45PM Feb 13, 2020Observed: 3.8 ft at 10:00PM Feb 13, 2020Observed: 3.79 ft at 10:15PM Feb 13, 2020Observed: 3.78 ft at 10:30PM Feb 13, 2020Observed: 3.76 ft at 10:45PM Feb 13, 2020Observed: 3.75 ft at 11:00PM Feb 13, 2020Observed: 3.74 ft at 11:15PM Feb 13, 2020Observed: 3.73 ft at 11:30PM Feb 13, 2020Observed: 3.72 ft at 11:45PM Feb 13, 2020Observed: 3.72 ft at 12:00AM Feb 14, 2020Observed: 3.71 ft at 12:15AM Feb 14, 2020Observed: 3.7 ft at 12:30AM Feb 14, 2020Observed: 3.69 ft at 12:45AM Feb 14, 2020Observed: 3.69 ft at 1:00AM Feb 14, 2020Observed: 3.68 ft at 1:15AM Feb 14, 2020Observed: 3.67 ft at 1:30AM Feb 14, 2020Observed: 3.67 ft at 1:45AM Feb 14, 2020Observed: 3.66 ft at 2:00AM Feb 14, 2020Observed: 3.65 ft at 2:15AM Feb 14, 2020Observed: 3.64 ft at 2:30AM Feb 14, 2020Observed: 3.64 ft at 2:45AM Feb 14, 2020Observed: 3.63 ft at 3:00AM Feb 14, 2020Observed: 3.62 ft at 3:15AM Feb 14, 2020Observed: 3.62 ft at 3:30AM Feb 14, 2020Observed: 3.61 ft at 3:45AM Feb 14, 2020Observed: 3.6 ft at 4:00AM Feb 14, 2020Observed: 3.6 ft at 4:15AM Feb 14, 2020Observed: 3.59 ft at 4:30AM Feb 14, 2020Observed: 3.58 ft at 4:45AM Feb 14, 2020Observed: 3.58 ft at 5:00AM Feb 14, 2020Observed: 3.57 ft at 5:15AM Feb 14, 2020Observed: 3.57 ft at 5:30AM Feb 14, 2020Observed: 3.56 ft at 5:45AM Feb 14, 2020Observed: 3.56 ft at 6:00AM Feb 14, 2020Observed: 3.55 ft at 6:15AM Feb 14, 2020Observed: 3.55 ft at 6:30AM Feb 14, 2020Observed: 3.54 ft at 6:45AM Feb 14, 2020Observed: 3.54 ft at 7:00AM Feb 14, 2020Observed: 3.53 ft at 7:15AM Feb 14, 2020Observed: 3.53 ft at 7:30AM Feb 14, 2020Observed: 3.52 ft at 7:45AM Feb 14, 2020Observed: 3.52 ft at 8:00AM Feb 14, 2020Observed: 3.52 ft at 8:15AM Feb 14, 2020Observed: 3.51 ft at 8:30AM Feb 14, 2020Observed: 3.51 ft at 8:45AM Feb 14, 2020Observed: 3.5 ft at 9:00AM Feb 14, 2020Observed: 3.5 ft at 9:15AM Feb 14, 2020Observed: 3.5 ft at 9:30AM Feb 14, 2020Observed: 3.49 ft at 9:45AM Feb 14, 2020Observed: 3.49 ft at 10:00AM Feb 14, 2020Observed: 3.48 ft at 10:15AM Feb 14, 2020Observed: 3.48 ft at 10:30AM Feb 14, 2020Observed: 3.48 ft at 10:45AM Feb 14, 2020Observed: 3.47 ft at 11:00AM Feb 14, 2020Observed: 3.47 ft at 11:15AM Feb 14, 2020Observed: 3.47 ft at 11:30AM Feb 14, 2020Observed: 3.46 ft at 11:45AM Feb 14, 2020Observed: 3.46 ft at 12:00PM Feb 14, 2020Observed: 3.46 ft at 12:15PM Feb 14, 2020Observed: 3.45 ft at 12:30PM Feb 14, 2020Observed: 3.45 ft at 12:45PM Feb 14, 2020Observed: 3.45 ft at 1:00PM Feb 14, 2020Observed: 3.44 ft at 1:15PM Feb 14, 2020Observed: 3.44 ft at 1:30PM Feb 14, 2020Observed: 3.44 ft at 1:45PM Feb 14, 2020Observed: 3.44 ft at 2:00PM Feb 14, 2020Observed: 3.44 ft at 2:15PM Feb 14, 2020Observed: 3.43 ft at 2:30PM Feb 14, 2020Observed: 3.43 ft at 2:45PM Feb 14, 2020Observed: 3.43 ft at 3:00PM Feb 14, 2020Observed: 3.43 ft at 3:15PM Feb 14, 2020Observed: 3.43 ft at 3:30PM Feb 14, 2020Observed: 3.42 ft at 3:45PM Feb 14, 2020Observed: 3.42 ft at 4:00PM Feb 14, 2020Observed: 3.42 ft at 4:15PM Feb 14, 2020Observed: 3.42 ft at 4:30PM Feb 14, 2020Observed: 3.42 ft at 4:45PM Feb 14, 2020Observed: 3.41 ft at 5:00PM Feb 14, 2020Observed: 3.41 ft at 5:15PM Feb 14, 2020Observed: 3.41 ft at 5:30PM Feb 14, 2020Observed: 3.41 ft at 5:45PM Feb 14, 2020Observed: 3.41 ft at 6:00PM Feb 14, 2020Observed: 3.41 ft at 6:15PM Feb 14, 2020Observed: 3.4 ft at 6:30PM Feb 14, 2020Observed: 3.4 ft at 6:45PM Feb 14, 2020Observed: 3.4 ft at 7:00PM Feb 14, 2020Observed: 3.4 ft at 7:15PM Feb 14, 2020Observed: 3.4 ft at 7:30PM Feb 14, 2020Observed: 3.4 ft at 7:45PM Feb 14, 2020Observed: 3.4 ft at 8:00PM Feb 14, 2020Observed: 3.39 ft at 8:15PM Feb 14, 2020Observed: 3.39 ft at 8:30PM Feb 14, 2020Observed: 3.39 ft at 8:45PM Feb 14, 2020Observed: 3.39 ft at 9:00PM Feb 14, 2020Observed: 3.39 ft at 9:15PM Feb 14, 2020Observed: 3.38 ft at 9:30PM Feb 14, 2020Observed: 3.38 ft at 9:45PM Feb 14, 2020Observed: 3.38 ft at 10:00PM Feb 14, 2020Observed: 3.38 ft at 10:15PM Feb 14, 2020Observed: 3.38 ft at 10:30PM Feb 14, 2020Observed: 3.38 ft at 10:45PM Feb 14, 2020Observed: 3.37 ft at 11:00PM Feb 14, 2020Observed: 3.37 ft at 11:15PM Feb 14, 2020Observed: 3.37 ft at 11:30PM Feb 14, 2020Observed: 3.37 ft at 11:45PM Feb 14, 2020Observed: 3.37 ft at 12:00AM Feb 15, 2020Observed: 3.37 ft at 12:15AM Feb 15, 2020Observed: 3.37 ft at 12:30AM Feb 15, 2020Observed: 3.37 ft at 12:45AM Feb 15, 2020Observed: 3.37 ft at 1:00AM Feb 15, 2020Observed: 3.37 ft at 1:15AM Feb 15, 2020Observed: 3.37 ft at 1:30AM Feb 15, 2020Observed: 3.37 ft at 1:45AM Feb 15, 2020Observed: 3.36 ft at 2:00AM Feb 15, 2020Observed: 3.36 ft at 2:15AM Feb 15, 2020Observed: 3.36 ft at 2:30AM Feb 15, 2020Observed: 3.36 ft at 2:45AM Feb 15, 2020Observed: 3.36 ft at 3:00AM Feb 15, 2020Observed: 3.36 ft at 3:15AM Feb 15, 2020Observed: 3.36 ft at 3:30AM Feb 15, 2020Observed: 3.36 ft at 3:45AM Feb 15, 2020Observed: 3.36 ft at 4:00AM Feb 15, 2020Observed: 3.35 ft at 4:15AM Feb 15, 2020Observed: 3.35 ft at 4:30AM Feb 15, 2020Observed: 3.35 ft at 4:45AM Feb 15, 2020Observed: 3.35 ft at 5:00AM Feb 15, 2020Observed: 3.35 ft at 5:15AM Feb 15, 2020Observed: 3.35 ft at 5:30AM Feb 15, 2020Observed: 3.34 ft at 5:45AM Feb 15, 2020Observed: 3.34 ft at 6:00AM Feb 15, 2020Observed: 3.34 ft at 6:15AM Feb 15, 2020Observed: 3.34 ft at 6:30AM Feb 15, 2020Observed: 3.34 ft at 6:45AM Feb 15, 2020Observed: 3.34 ft at 7:00AM Feb 15, 2020Observed: 3.34 ft at 7:15AM Feb 15, 2020Observed: 3.33 ft at 7:30AM Feb 15, 2020Observed: 3.33 ft at 7:45AM Feb 15, 2020Observed: 3.33 ft at 8:00AM Feb 15, 2020Observed: 3.33 ft at 8:15AM Feb 15, 2020Observed: 3.33 ft at 8:30AM Feb 15, 2020Observed: 3.33 ft at 8:45AM Feb 15, 2020Observed: 3.33 ft at 9:00AM Feb 15, 2020Observed: 3.33 ft at 9:15AM Feb 15, 2020Observed: 3.33 ft at 9:30AM Feb 15, 2020Observed: 3.33 ft at 9:45AM Feb 15, 2020Observed: 3.33 ft at 10:00AM Feb 15, 2020Observed: 3.33 ft at 10:15AM Feb 15, 2020Observed: 3.33 ft at 10:30AM Feb 15, 2020Observed: 3.33 ft at 10:45AM Feb 15, 2020Observed: 3.32 ft at 11:00AM Feb 15, 2020Observed: 3.32 ft at 11:15AM Feb 15, 2020Observed: 3.32 ft at 11:30AM Feb 15, 2020Observed: 3.32 ft at 11:45AM Feb 15, 2020Observed: 3.32 ft at 12:00PM Feb 15, 2020Observed: 3.32 ft at 12:15PM Feb 15, 2020Observed: 3.32 ft at 12:30PM Feb 15, 2020Observed: 3.32 ft at 12:45PM Feb 15, 2020Observed: 3.32 ft at 1:00PM Feb 15, 2020Observed: 3.32 ft at 1:15PM Feb 15, 2020Observed: 3.32 ft at 1:30PM Feb 15, 2020Observed: 3.32 ft at 1:45PM Feb 15, 2020Observed: 3.32 ft at 2:00PM Feb 15, 2020Observed: 3.32 ft at 2:15PM Feb 15, 2020Observed: 3.32 ft at 2:30PM Feb 15, 2020Observed: 3.32 ft at 2:45PM Feb 15, 2020Observed: 3.32 ft at 3:00PM Feb 15, 2020Observed: 3.32 ft at 3:15PM Feb 15, 2020Observed: 3.32 ft at 3:30PM Feb 15, 2020Observed: 3.32 ft at 3:45PM Feb 15, 2020Observed: 3.32 ft at 4:00PM Feb 15, 2020Observed: 3.32 ft at 4:15PM Feb 15, 2020Observed: 3.32 ft at 4:30PM Feb 15, 2020Observed: 3.32 ft at 4:45PM Feb 15, 2020Observed: 3.32 ft at 5:00PM Feb 15, 2020Observed: 3.32 ft at 5:15PM Feb 15, 2020Observed: 3.32 ft at 5:30PM Feb 15, 2020Observed: 3.32 ft at 5:45PM Feb 15, 2020Observed: 3.32 ft at 6:00PM Feb 15, 2020Observed: 3.32 ft at 6:15PM Feb 15, 2020Observed: 3.32 ft at 6:30PM Feb 15, 2020Observed: 3.32 ft at 6:45PM Feb 15, 2020Observed: 3.32 ft at 7:00PM Feb 15, 2020Observed: 3.32 ft at 7:15PM Feb 15, 2020Observed: 3.32 ft at 7:30PM Feb 15, 2020Observed: 3.32 ft at 7:45PM Feb 15, 2020Observed: 3.32 ft at 8:00PM Feb 15, 2020Observed: 3.32 ft at 8:15PM Feb 15, 2020Observed: 3.32 ft at 8:30PM Feb 15, 2020Observed: 3.32 ft at 8:45PM Feb 15, 2020Observed: 3.32 ft at 9:00PM Feb 15, 2020Observed: 3.32 ft at 9:15PM Feb 15, 2020Observed: 3.32 ft at 9:30PM Feb 15, 2020Observed: 3.32 ft at 9:45PM Feb 15, 2020Observed: 3.32 ft at 10:00PM Feb 15, 2020Observed: 3.32 ft at 10:15PM Feb 15, 2020Observed: 3.32 ft at 10:30PM Feb 15, 2020Observed: 3.32 ft at 10:45PM Feb 15, 2020Observed: 3.32 ft at 11:00PM Feb 15, 2020Observed: 3.32 ft at 11:15PM Feb 15, 2020Observed: 3.32 ft at 11:30PM Feb 15, 2020Observed: 3.32 ft at 11:45PM Feb 15, 2020Observed: 3.32 ft at 12:00AM Feb 16, 2020Observed: 3.32 ft at 12:15AM Feb 16, 2020Observed: 3.32 ft at 12:30AM Feb 16, 2020Observed: 3.32 ft at 12:45AM Feb 16, 2020Observed: 3.32 ft at 1:00AM Feb 16, 2020Observed: 3.32 ft at 1:15AM Feb 16, 2020Observed: 3.32 ft at 1:30AM Feb 16, 2020Observed: 3.31 ft at 1:45AM Feb 16, 2020Observed: 3.32 ft at 2:00AM Feb 16, 2020Observed: 3.31 ft at 2:15AM Feb 16, 2020Observed: 3.31 ft at 2:30AM Feb 16, 2020Observed: 3.31 ft at 2:45AM Feb 16, 2020Observed: 3.31 ft at 3:00AM Feb 16, 2020Observed: 3.31 ft at 3:15AM Feb 16, 2020Observed: 3.31 ft at 3:30AM Feb 16, 2020Observed: 3.31 ft at 3:45AM Feb 16, 2020Observed: 3.31 ft at 4:00AM Feb 16, 2020Observed: 3.31 ft at 4:15AM Feb 16, 2020Observed: 3.31 ft at 4:30AM Feb 16, 2020Observed: 3.31 ft at 4:45AM Feb 16, 2020Observed: 3.31 ft at 5:00AM Feb 16, 2020Observed: 3.31 ft at 5:15AM Feb 16, 2020Observed: 3.31 ft at 5:30AM Feb 16, 2020Observed: 3.31 ft at 5:45AM Feb 16, 2020Observed: 3.31 ft at 6:00AM Feb 16, 2020Observed: 3.31 ft at 6:15AM Feb 16, 2020Observed: 3.31 ft at 6:30AM Feb 16, 2020Observed: 3.31 ft at 6:45AM Feb 16, 2020Observed: 3.31 ft at 7:00AM Feb 16, 2020Observed: 3.31 ft at 7:15AM Feb 16, 2020Observed: 3.31 ft at 7:30AM Feb 16, 2020Observed: 3.31 ft at 7:45AM Feb 16, 2020Observed: 3.31 ft at 8:00AM Feb 16, 2020Observed: 3.31 ft at 8:15AM Feb 16, 2020Observed: 3.31 ft at 8:30AM Feb 16, 2020Observed: 3.3 ft at 8:45AM Feb 16, 2020Observed: 3.3 ft at 9:00AM Feb 16, 2020Observed: 3.3 ft at 9:15AM Feb 16, 2020Observed: 3.3 ft at 9:30AM Feb 16, 2020Observed: 3.3 ft at 9:45AM Feb 16, 2020Observed: 3.3 ft at 10:00AM Feb 16, 2020Observed: 3.3 ft at 10:15AM Feb 16, 2020Observed: 3.3 ft at 10:30AM Feb 16, 2020Observed: 3.3 ft at 10:45AM Feb 16, 2020Observed: 3.3 ft at 11:00AM Feb 16, 2020Observed: 3.3 ft at 11:15AM Feb 16, 2020Observed: 3.3 ft at 11:30AM Feb 16, 2020Observed: 3.3 ft at 11:45AM Feb 16, 2020Observed: 3.3 ft at 12:00PM Feb 16, 2020Observed: 3.3 ft at 12:15PM Feb 16, 2020Observed: 3.3 ft at 12:30PM Feb 16, 2020Observed: 3.3 ft at 12:45PM Feb 16, 2020Observed: 3.3 ft at 1:00PM Feb 16, 2020Observed: 3.29 ft at 1:15PM Feb 16, 2020Observed: 3.29 ft at 1:30PM Feb 16, 2020Observed: 3.29 ft at 1:45PM Feb 16, 2020Observed: 3.29 ft at 2:00PM Feb 16, 2020Observed: 3.29 ft at 2:15PM Feb 16, 2020Observed: 3.29 ft at 2:30PM Feb 16, 2020Observed: 3.29 ft at 2:45PM Feb 16, 2020Observed: 3.29 ft at 3:00PM Feb 16, 2020Observed: 3.29 ft at 3:15PM Feb 16, 2020Observed: 3.29 ft at 3:30PM Feb 16, 2020Observed: 3.29 ft at 3:45PM Feb 16, 2020Observed: 3.29 ft at 4:00PM Feb 16, 2020Observed: 3.29 ft at 4:15PM Feb 16, 2020Observed: 3.29 ft at 4:30PM Feb 16, 2020Observed: 3.29 ft at 4:45PM Feb 16, 2020Observed: 3.29 ft at 5:00PM Feb 16, 2020Observed: 3.29 ft at 5:15PM Feb 16, 2020Observed: 3.29 ft at 5:30PM Feb 16, 2020Observed: 3.29 ft at 5:45PM Feb 16, 2020Observed: 3.29 ft at 6:00PM Feb 16, 2020Observed: 3.29 ft at 6:15PM Feb 16, 2020Observed: 3.29 ft at 6:30PM Feb 16, 2020Observed: 3.29 ft at 6:45PM Feb 16, 2020Observed: 3.29 ft at 7:00PM Feb 16, 2020Observed: 3.29 ft at 7:15PM Feb 16, 2020Observed: 3.29 ft at 7:30PM Feb 16, 2020Observed: 3.29 ft at 7:45PM Feb 16, 2020Observed: 3.29 ft at 8:00PM Feb 16, 2020Observed: 3.29 ft at 8:15PM Feb 16, 2020Observed: 3.29 ft at 8:30PM Feb 16, 2020Observed: 3.29 ft at 8:45PM Feb 16, 2020Observed: 3.29 ft at 9:00PM Feb 16, 2020Observed: 3.29 ft at 9:15PM Feb 16, 2020Observed: 3.29 ft at 9:30PM Feb 16, 2020Observed: 3.29 ft at 9:45PM Feb 16, 2020Observed: 3.29 ft at 10:00PM Feb 16, 2020Observed: 3.29 ft at 10:15PM Feb 16, 2020Observed: 3.29 ft at 10:30PM Feb 16, 2020Observed: 3.29 ft at 10:45PM Feb 16, 2020Observed: 3.29 ft at 11:00PM Feb 16, 2020Observed: 3.29 ft at 11:15PM Feb 16, 2020Observed: 3.29 ft at 11:30PM Feb 16, 2020Observed: 3.29 ft at 11:45PM Feb 16, 2020Observed: 3.28 ft at 12:00AM Feb 17, 2020Observed: 3.28 ft at 12:15AM Feb 17, 2020Observed: 3.28 ft at 12:30AM Feb 17, 2020Observed: 3.28 ft at 12:45AM Feb 17, 2020Observed: 3.28 ft at 1:00AM Feb 17, 2020Observed: 3.28 ft at 1:15AM Feb 17, 2020Observed: 3.28 ft at 1:30AM Feb 17, 2020Observed: 3.28 ft at 1:45AM Feb 17, 2020Observed: 3.28 ft at 2:00AM Feb 17, 2020Observed: 3.28 ft at 2:15AM Feb 17, 2020Observed: 3.28 ft at 2:30AM Feb 17, 2020Observed: 3.28 ft at 2:45AM Feb 17, 2020Observed: 3.28 ft at 3:00AM Feb 17, 2020Observed: 3.28 ft at 3:15AM Feb 17, 2020Observed: 3.28 ft at 3:30AM Feb 17, 2020Observed: 3.28 ft at 3:45AM Feb 17, 2020Observed: 3.28 ft at 4:00AM Feb 17, 2020Observed: 3.28 ft at 4:15AM Feb 17, 2020Observed: 3.28 ft at 4:30AM Feb 17, 2020Observed: 3.28 ft at 4:45AM Feb 17, 2020Observed: 3.28 ft at 5:00AM Feb 17, 2020Observed: 3.28 ft at 5:15AM Feb 17, 2020Observed: 3.28 ft at 5:30AM Feb 17, 2020Observed: 3.28 ft at 5:45AM Feb 17, 2020Observed: 3.27 ft at 6:00AM Feb 17, 2020Observed: 3.27 ft at 6:15AM Feb 17, 2020Observed: 3.27 ft at 6:30AM Feb 17, 2020Observed: 3.27 ft at 6:45AM Feb 17, 2020Observed: 3.27 ft at 7:00AM Feb 17, 2020Observed: 3.27 ft at 7:15AM Feb 17, 2020Observed: 3.27 ft at 7:30AM Feb 17, 2020Observed: 3.27 ft at 7:45AM Feb 17, 2020Observed: 3.27 ft at 8:00AM Feb 17, 2020Observed: 3.27 ft at 8:15AM Feb 17, 2020Observed: 3.27 ft at 8:30AM Feb 17, 2020Observed: 3.27 ft at 8:45AM Feb 17, 2020Observed: 3.27 ft at 9:00AM Feb 17, 2020Observed: 3.27 ft at 9:15AM Feb 17, 2020Observed: 3.27 ft at 9:30AM Feb 17, 2020Observed: 3.27 ft at 9:45AM Feb 17, 2020Observed: 3.27 ft at 10:00AM Feb 17, 2020Observed: 3.27 ft at 10:15AM Feb 17, 2020Observed: 3.27 ft at 10:30AM Feb 17, 2020Observed: 3.26 ft at 10:45AM Feb 17, 2020Observed: 3.26 ft at 11:00AM Feb 17, 2020Observed: 3.26 ft at 11:15AM Feb 17, 2020Observed: 3.26 ft at 11:30AM Feb 17, 2020Observed: 3.26 ft at 11:45AM Feb 17, 2020Observed: 3.26 ft at 12:00PM Feb 17, 2020Observed: 3.26 ft at 12:15PM Feb 17, 2020Observed: 3.26 ft at 12:30PM Feb 17, 2020Observed: 3.26 ft at 12:45PM Feb 17, 2020Observed: 3.26 ft at 1:00PM Feb 17, 2020Observed: 3.26 ft at 1:15PM Feb 17, 2020Observed: 3.26 ft at 1:30PM Feb 17, 2020Observed: 3.26 ft at 1:45PM Feb 17, 2020Observed: 3.26 ft at 2:00PM Feb 17, 2020Observed: 3.26 ft at 2:15PM Feb 17, 2020Observed: 3.26 ft at 2:30PM Feb 17, 2020Observed: 3.26 ft at 2:45PM Feb 17, 2020Observed: 3.26 ft at 3:00PM Feb 17, 2020Observed: 3.26 ft at 3:15PM Feb 17, 2020USGS--Water Resources of the United StatesGFLV2(plotting HGIRG) Graph Created (4:39PM Feb 17, 2020)ObservedLatest observed value: 3.26 ft at 3:15 PM EST 17-Feb-2020. Flood Stage is 11 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading may be affected by ice.

NOTE: Forecasts are not available for the Difficult Run near Great Falls. Only observed stages are available for this point.

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 13
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 21.40 ft on 06/22/1972
(2) 17.54 ft on 09/08/2011
(3) 16.62 ft on 09/06/2008
(4) 15.01 ft on 06/26/2006
(5) 13.82 ft on 09/26/1975
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.59 ft on 07/08/2019 (P)
(2) 11.08 ft on 08/01/2018
(3) 12.80 ft on 07/22/2018
(4) 12.23 ft on 05/16/2014
(5) 12.57 ft on 04/30/2014
Show More Recent Crests

(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:15
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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
20 Water approaches structures near the stream.
13 Water reaches the intersection of Leigh Mill Road and Kelso Road.
11 Leigh Mill Road floods near Difficult Run.
About This Location Collapse

Latitude: 38.975833° N, Longitude: 77.246111° 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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