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Hydrograph River at a Glance Download
Monocacy River near Frederick at Interstate 70 Stage (ft)Flow (kcfs)Highest Observation: 2.93 ft at 12:45PM May 24, 2020Highest Observation: 2.93 ft at 1:00PM May 24, 2020Highest Observation: 2.93 ft at 1:15PM May 24, 2020Highest Observation: 2.93 ft at 1:30PM May 24, 2020Observed: 2.92 ft at 1:45PM May 24, 2020Observed: 2.92 ft at 2:00PM May 24, 2020Observed: 2.91 ft at 2:15PM May 24, 2020Observed: 2.91 ft at 2:30PM May 24, 2020Observed: 2.91 ft at 2:45PM May 24, 2020Observed: 2.9 ft at 3:00PM May 24, 2020Observed: 2.9 ft at 3:15PM May 24, 2020Observed: 2.9 ft at 3:30PM May 24, 2020Observed: 2.89 ft at 3:45PM May 24, 2020Observed: 2.89 ft at 4:00PM May 24, 2020Observed: 2.89 ft at 4:15PM May 24, 2020Observed: 2.88 ft at 4:30PM May 24, 2020Observed: 2.88 ft at 4:45PM May 24, 2020Observed: 2.88 ft at 5:00PM May 24, 2020Observed: 2.87 ft at 5:15PM May 24, 2020Observed: 2.87 ft at 5:30PM May 24, 2020Observed: 2.87 ft at 5:45PM May 24, 2020Observed: 2.87 ft at 6:00PM May 24, 2020Observed: 2.86 ft at 6:15PM May 24, 2020Observed: 2.86 ft at 6:30PM May 24, 2020Observed: 2.86 ft at 6:45PM May 24, 2020Observed: 2.86 ft at 7:00PM May 24, 2020Observed: 2.86 ft at 7:15PM May 24, 2020Observed: 2.86 ft at 7:30PM May 24, 2020Observed: 2.85 ft at 7:45PM May 24, 2020Observed: 2.85 ft at 8:00PM May 24, 2020Observed: 2.85 ft at 8:15PM May 24, 2020Observed: 2.85 ft at 8:30PM May 24, 2020Observed: 2.84 ft at 8:45PM May 24, 2020Observed: 2.84 ft at 9:00PM May 24, 2020Observed: 2.84 ft at 9:15PM May 24, 2020Observed: 2.84 ft at 9:30PM May 24, 2020Observed: 2.84 ft at 9:45PM May 24, 2020Observed: 2.84 ft at 10:00PM May 24, 2020Observed: 2.84 ft at 10:15PM May 24, 2020Observed: 2.83 ft at 10:30PM May 24, 2020Observed: 2.83 ft at 10:45PM May 24, 2020Observed: 2.83 ft at 11:00PM May 24, 2020Observed: 2.83 ft at 11:15PM May 24, 2020Observed: 2.83 ft at 11:30PM May 24, 2020Observed: 2.82 ft at 11:45PM May 24, 2020Observed: 2.82 ft at 12:00AM May 25, 2020Observed: 2.82 ft at 12:15AM May 25, 2020Observed: 2.82 ft at 12:30AM May 25, 2020Observed: 2.82 ft at 12:45AM May 25, 2020Observed: 2.82 ft at 1:00AM May 25, 2020Observed: 2.82 ft at 1:15AM May 25, 2020Observed: 2.81 ft at 1:30AM May 25, 2020Observed: 2.81 ft at 1:45AM May 25, 2020Observed: 2.81 ft at 2:00AM May 25, 2020Observed: 2.81 ft at 2:15AM May 25, 2020Observed: 2.8 ft at 2:30AM May 25, 2020Observed: 2.8 ft at 2:45AM May 25, 2020Observed: 2.8 ft at 3:00AM May 25, 2020Observed: 2.79 ft at 3:15AM May 25, 2020Observed: 2.79 ft at 3:30AM May 25, 2020Observed: 2.79 ft at 3:45AM May 25, 2020Observed: 2.79 ft at 4:00AM May 25, 2020Observed: 2.79 ft at 4:15AM May 25, 2020Observed: 2.78 ft at 4:30AM May 25, 2020Observed: 2.78 ft at 4:45AM May 25, 2020Observed: 2.78 ft at 5:00AM May 25, 2020Observed: 2.78 ft at 5:15AM May 25, 2020Observed: 2.77 ft at 5:30AM May 25, 2020Observed: 2.77 ft at 5:45AM May 25, 2020Observed: 2.77 ft at 6:00AM May 25, 2020Observed: 2.77 ft at 6:15AM May 25, 2020Observed: 2.76 ft at 6:30AM May 25, 2020Observed: 2.76 ft at 6:45AM May 25, 2020Observed: 2.76 ft at 7:00AM May 25, 2020Observed: 2.76 ft at 7:15AM May 25, 2020Observed: 2.76 ft at 7:30AM May 25, 2020Observed: 2.76 ft at 7:45AM May 25, 2020Observed: 2.75 ft at 8:00AM May 25, 2020Observed: 2.76 ft at 8:15AM May 25, 2020Observed: 2.75 ft at 8:30AM May 25, 2020Observed: 2.75 ft at 8:45AM May 25, 2020Observed: 2.75 ft at 9:00AM May 25, 2020Observed: 2.74 ft at 9:15AM May 25, 2020Observed: 2.74 ft at 9:30AM May 25, 2020Observed: 2.74 ft at 9:45AM May 25, 2020Observed: 2.73 ft at 10:00AM May 25, 2020Observed: 2.74 ft at 10:15AM May 25, 2020Observed: 2.73 ft at 10:30AM May 25, 2020Observed: 2.73 ft at 10:45AM May 25, 2020Observed: 2.73 ft at 11:00AM May 25, 2020Observed: 2.73 ft at 11:15AM May 25, 2020Observed: 2.73 ft at 11:30AM May 25, 2020Observed: 2.73 ft at 11:45AM May 25, 2020Observed: 2.73 ft at 12:00PM May 25, 2020Observed: 2.73 ft at 12:15PM May 25, 2020Observed: 2.72 ft at 12:30PM May 25, 2020Observed: 2.73 ft at 12:45PM May 25, 2020Observed: 2.72 ft at 1:00PM May 25, 2020Observed: 2.72 ft at 1:15PM May 25, 2020Observed: 2.72 ft at 1:30PM May 25, 2020Observed: 2.72 ft at 1:45PM May 25, 2020Observed: 2.72 ft at 2:00PM May 25, 2020Observed: 2.72 ft at 2:15PM May 25, 2020Observed: 2.72 ft at 2:30PM May 25, 2020Observed: 2.71 ft at 2:45PM May 25, 2020Observed: 2.71 ft at 3:00PM May 25, 2020Observed: 2.71 ft at 3:15PM May 25, 2020Observed: 2.71 ft at 3:30PM May 25, 2020Observed: 2.71 ft at 3:45PM May 25, 2020Observed: 2.71 ft at 4:00PM May 25, 2020Observed: 2.71 ft at 4:15PM May 25, 2020Observed: 2.71 ft at 4:30PM May 25, 2020Observed: 2.71 ft at 4:45PM May 25, 2020Observed: 2.7 ft at 5:00PM May 25, 2020Observed: 2.71 ft at 5:15PM May 25, 2020Observed: 2.7 ft at 5:30PM May 25, 2020Observed: 2.7 ft at 5:45PM May 25, 2020Observed: 2.7 ft at 6:00PM May 25, 2020Observed: 2.7 ft at 6:15PM May 25, 2020Observed: 2.7 ft at 6:30PM May 25, 2020Observed: 2.7 ft at 6:45PM May 25, 2020Observed: 2.7 ft at 7:00PM May 25, 2020Observed: 2.7 ft at 7:15PM May 25, 2020Observed: 2.7 ft at 7:30PM May 25, 2020Observed: 2.7 ft at 7:45PM May 25, 2020Observed: 2.7 ft at 8:00PM May 25, 2020Observed: 2.69 ft at 8:15PM May 25, 2020Observed: 2.7 ft at 8:30PM May 25, 2020Observed: 2.69 ft at 8:45PM May 25, 2020Observed: 2.69 ft at 9:00PM May 25, 2020Observed: 2.69 ft at 9:15PM May 25, 2020Observed: 2.69 ft at 9:30PM May 25, 2020Observed: 2.69 ft at 9:45PM May 25, 2020Observed: 2.69 ft at 10:00PM May 25, 2020Observed: 2.69 ft at 10:15PM May 25, 2020Observed: 2.68 ft at 10:30PM May 25, 2020Observed: 2.68 ft at 10:45PM May 25, 2020Observed: 2.68 ft at 11:00PM May 25, 2020Observed: 2.68 ft at 11:15PM May 25, 2020Observed: 2.68 ft at 11:30PM May 25, 2020Observed: 2.68 ft at 11:45PM May 25, 2020Observed: 2.68 ft at 12:00AM May 26, 2020Observed: 2.68 ft at 12:15AM May 26, 2020Observed: 2.68 ft at 12:30AM May 26, 2020Observed: 2.68 ft at 12:45AM May 26, 2020Observed: 2.68 ft at 1:00AM May 26, 2020Observed: 2.68 ft at 1:15AM May 26, 2020Observed: 2.68 ft at 1:30AM May 26, 2020Observed: 2.68 ft at 1:45AM May 26, 2020Observed: 2.68 ft at 2:00AM May 26, 2020Observed: 2.68 ft at 2:15AM May 26, 2020Observed: 2.67 ft at 2:30AM May 26, 2020Observed: 2.67 ft at 2:45AM May 26, 2020Observed: 2.67 ft at 3:00AM May 26, 2020Observed: 2.67 ft at 3:15AM May 26, 2020Observed: 2.67 ft at 3:30AM May 26, 2020Observed: 2.67 ft at 3:45AM May 26, 2020Observed: 2.67 ft at 4:00AM May 26, 2020Observed: 2.67 ft at 4:15AM May 26, 2020Observed: 2.67 ft at 4:30AM May 26, 2020Observed: 2.67 ft at 4:45AM May 26, 2020Observed: 2.66 ft at 5:00AM May 26, 2020Observed: 2.66 ft at 5:15AM May 26, 2020Observed: 2.67 ft at 5:30AM May 26, 2020Observed: 2.67 ft at 5:45AM May 26, 2020Observed: 2.66 ft at 6:00AM May 26, 2020Observed: 2.66 ft at 6:15AM May 26, 2020Observed: 2.66 ft at 6:30AM May 26, 2020Observed: 2.66 ft at 6:45AM May 26, 2020Observed: 2.66 ft at 7:00AM May 26, 2020Observed: 2.66 ft at 7:15AM May 26, 2020Observed: 2.66 ft at 7:30AM May 26, 2020Observed: 2.66 ft at 7:45AM May 26, 2020Observed: 2.65 ft at 8:00AM May 26, 2020Observed: 2.65 ft at 8:15AM May 26, 2020Observed: 2.65 ft at 8:30AM May 26, 2020Observed: 2.65 ft at 8:45AM May 26, 2020Observed: 2.65 ft at 9:00AM May 26, 2020Observed: 2.65 ft at 9:15AM May 26, 2020Observed: 2.65 ft at 9:30AM May 26, 2020Observed: 2.64 ft at 9:45AM May 26, 2020Observed: 2.64 ft at 10:00AM May 26, 2020Observed: 2.64 ft at 10:15AM May 26, 2020Observed: 2.64 ft at 10:30AM May 26, 2020Observed: 2.64 ft at 10:45AM May 26, 2020Observed: 2.64 ft at 11:00AM May 26, 2020Observed: 2.64 ft at 11:15AM May 26, 2020Observed: 2.63 ft at 11:30AM May 26, 2020Observed: 2.63 ft at 11:45AM May 26, 2020Observed: 2.63 ft at 12:00PM May 26, 2020Observed: 2.63 ft at 12:15PM May 26, 2020Observed: 2.63 ft at 12:30PM May 26, 2020Observed: 2.63 ft at 12:45PM May 26, 2020Observed: 2.63 ft at 1:00PM May 26, 2020Observed: 2.63 ft at 1:15PM May 26, 2020Observed: 2.62 ft at 1:30PM May 26, 2020Observed: 2.63 ft at 1:45PM May 26, 2020Observed: 2.62 ft at 2:00PM May 26, 2020Observed: 2.63 ft at 2:15PM May 26, 2020Observed: 2.62 ft at 2:30PM May 26, 2020Observed: 2.62 ft at 2:45PM May 26, 2020Observed: 2.62 ft at 3:00PM May 26, 2020Observed: 2.62 ft at 3:15PM May 26, 2020Observed: 2.62 ft at 3:30PM May 26, 2020Observed: 2.62 ft at 3:45PM May 26, 2020Observed: 2.61 ft at 4:00PM May 26, 2020Observed: 2.61 ft at 4:15PM May 26, 2020Observed: 2.62 ft at 4:30PM May 26, 2020Observed: 2.62 ft at 4:45PM May 26, 2020Observed: 2.61 ft at 5:00PM May 26, 2020Observed: 2.62 ft at 5:15PM May 26, 2020Observed: 2.61 ft at 5:30PM May 26, 2020Observed: 2.61 ft at 5:45PM May 26, 2020Observed: 2.62 ft at 6:00PM May 26, 2020Observed: 2.61 ft at 6:15PM May 26, 2020Observed: 2.61 ft at 6:30PM May 26, 2020Observed: 2.61 ft at 6:45PM May 26, 2020Observed: 2.61 ft at 7:00PM May 26, 2020Observed: 2.61 ft at 7:15PM May 26, 2020Observed: 2.61 ft at 7:30PM May 26, 2020Observed: 2.61 ft at 7:45PM May 26, 2020Observed: 2.61 ft at 8:00PM May 26, 2020Observed: 2.6 ft at 8:15PM May 26, 2020Observed: 2.6 ft at 8:30PM May 26, 2020Observed: 2.6 ft at 8:45PM May 26, 2020Observed: 2.6 ft at 9:00PM May 26, 2020Observed: 2.59 ft at 9:15PM May 26, 2020Observed: 2.6 ft at 9:30PM May 26, 2020Observed: 2.59 ft at 9:45PM May 26, 2020Observed: 2.59 ft at 10:00PM May 26, 2020Observed: 2.6 ft at 10:15PM May 26, 2020Observed: 2.59 ft at 10:30PM May 26, 2020Observed: 2.59 ft at 10:45PM May 26, 2020Observed: 2.59 ft at 11:00PM May 26, 2020Observed: 2.59 ft at 11:15PM May 26, 2020Observed: 2.59 ft at 11:30PM May 26, 2020Observed: 2.59 ft at 11:45PM May 26, 2020Observed: 2.59 ft at 12:00AM May 27, 2020Observed: 2.59 ft at 12:15AM May 27, 2020Observed: 2.59 ft at 12:30AM May 27, 2020Observed: 2.59 ft at 12:45AM May 27, 2020Observed: 2.59 ft at 1:00AM May 27, 2020Observed: 2.59 ft at 1:15AM May 27, 2020Observed: 2.59 ft at 1:30AM May 27, 2020Observed: 2.58 ft at 1:45AM May 27, 2020Observed: 2.59 ft at 2:00AM May 27, 2020Observed: 2.59 ft at 2:15AM May 27, 2020Observed: 2.58 ft at 2:30AM May 27, 2020Observed: 2.58 ft at 2:45AM May 27, 2020Observed: 2.58 ft at 3:00AM May 27, 2020Observed: 2.58 ft at 3:15AM May 27, 2020Observed: 2.58 ft at 3:30AM May 27, 2020Observed: 2.58 ft at 3:45AM May 27, 2020Observed: 2.58 ft at 4:00AM May 27, 2020Observed: 2.58 ft at 4:15AM May 27, 2020Observed: 2.57 ft at 4:30AM May 27, 2020Observed: 2.57 ft at 4:45AM May 27, 2020Observed: 2.57 ft at 5:00AM May 27, 2020Observed: 2.57 ft at 5:15AM May 27, 2020Observed: 2.57 ft at 5:30AM May 27, 2020Observed: 2.57 ft at 5:45AM May 27, 2020Observed: 2.57 ft at 6:00AM May 27, 2020Observed: 2.57 ft at 6:15AM May 27, 2020Observed: 2.57 ft at 6:30AM May 27, 2020Observed: 2.57 ft at 6:45AM May 27, 2020Observed: 2.57 ft at 7:00AM May 27, 2020Observed: 2.57 ft at 7:15AM May 27, 2020Observed: 2.57 ft at 7:30AM May 27, 2020Observed: 2.56 ft at 7:45AM May 27, 2020Observed: 2.56 ft at 8:00AM May 27, 2020Observed: 2.56 ft at 8:15AM May 27, 2020Observed: 2.56 ft at 8:30AM May 27, 2020Observed: 2.56 ft at 8:45AM May 27, 2020Observed: 2.56 ft at 9:00AM May 27, 2020Observed: 2.56 ft at 9:15AM May 27, 2020Observed: 2.55 ft at 9:30AM May 27, 2020Observed: 2.55 ft at 9:45AM May 27, 2020Observed: 2.55 ft at 10:00AM May 27, 2020Observed: 2.55 ft at 10:15AM May 27, 2020Observed: 2.55 ft at 10:30AM May 27, 2020Observed: 2.56 ft at 10:45AM May 27, 2020Observed: 2.56 ft at 11:00AM May 27, 2020Observed: 2.55 ft at 11:15AM May 27, 2020Observed: 2.55 ft at 11:30AM May 27, 2020Observed: 2.55 ft at 11:45AM May 27, 2020Observed: 2.55 ft at 12:00PM May 27, 2020Observed: 2.55 ft at 12:15PM May 27, 2020Observed: 2.55 ft at 12:30PM May 27, 2020Observed: 2.55 ft at 12:45PM May 27, 2020Observed: 2.55 ft at 1:00PM May 27, 2020Observed: 2.55 ft at 1:15PM May 27, 2020Observed: 2.54 ft at 1:30PM May 27, 2020Observed: 2.54 ft at 1:45PM May 27, 2020Observed: 2.54 ft at 2:00PM May 27, 2020Observed: 2.54 ft at 2:15PM May 27, 2020Observed: 2.54 ft at 2:30PM May 27, 2020Observed: 2.54 ft at 2:45PM May 27, 2020Observed: 2.54 ft at 3:00PM May 27, 2020Observed: 2.54 ft at 3:15PM May 27, 2020Observed: 2.54 ft at 3:30PM May 27, 2020Observed: 2.54 ft at 3:45PM May 27, 2020Observed: 2.54 ft at 4:00PM May 27, 2020Observed: 2.54 ft at 4:15PM May 27, 2020Observed: 2.54 ft at 4:30PM May 27, 2020Observed: 2.54 ft at 4:45PM May 27, 2020Observed: 2.54 ft at 5:00PM May 27, 2020Observed: 2.54 ft at 5:15PM May 27, 2020Observed: 2.53 ft at 5:30PM May 27, 2020Observed: 2.53 ft at 5:45PM May 27, 2020Observed: 2.53 ft at 6:00PM May 27, 2020Observed: 2.53 ft at 6:15PM May 27, 2020Observed: 2.53 ft at 6:30PM May 27, 2020Observed: 2.53 ft at 6:45PM May 27, 2020Observed: 2.53 ft at 7:00PM May 27, 2020Observed: 2.52 ft at 7:15PM May 27, 2020Observed: 2.52 ft at 7:30PM May 27, 2020Observed: 2.52 ft at 7:45PM May 27, 2020Observed: 2.52 ft at 8:00PM May 27, 2020Observed: 2.52 ft at 8:15PM May 27, 2020Observed: 2.52 ft at 8:30PM May 27, 2020Observed: 2.52 ft at 8:45PM May 27, 2020Observed: 2.52 ft at 9:00PM May 27, 2020Observed: 2.52 ft at 9:15PM May 27, 2020Observed: 2.52 ft at 9:30PM May 27, 2020Observed: 2.52 ft at 9:45PM May 27, 2020Observed: 2.52 ft at 10:00PM May 27, 2020Observed: 2.52 ft at 10:15PM May 27, 2020Observed: 2.51 ft at 10:30PM May 27, 2020Observed: 2.51 ft at 10:45PM May 27, 2020Observed: 2.51 ft at 11:00PM May 27, 2020Observed: 2.51 ft at 11:15PM May 27, 2020Observed: 2.51 ft at 11:30PM May 27, 2020Observed: 2.51 ft at 11:45PM May 27, 2020Observed: 2.51 ft at 12:00AM May 28, 2020Observed: 2.51 ft at 12:15AM May 28, 2020Observed: 2.51 ft at 12:30AM May 28, 2020Observed: 2.51 ft at 12:45AM May 28, 2020Observed: 2.51 ft at 1:00AM May 28, 2020Observed: 2.51 ft at 1:15AM May 28, 2020Observed: 2.51 ft at 1:30AM May 28, 2020Observed: 2.51 ft at 1:45AM May 28, 2020Observed: 2.51 ft at 2:00AM May 28, 2020Observed: 2.5 ft at 2:15AM May 28, 2020Observed: 2.5 ft at 2:30AM May 28, 2020Observed: 2.5 ft at 2:45AM May 28, 2020Observed: 2.51 ft at 3:00AM May 28, 2020Observed: 2.5 ft at 3:15AM May 28, 2020Observed: 2.5 ft at 3:30AM May 28, 2020Observed: 2.5 ft at 3:45AM May 28, 2020Observed: 2.5 ft at 4:00AM May 28, 2020Observed: 2.5 ft at 4:15AM May 28, 2020Observed: 2.5 ft at 4:30AM May 28, 2020Observed: 2.5 ft at 4:45AM May 28, 2020Observed: 2.5 ft at 5:00AM May 28, 2020Observed: 2.49 ft at 5:15AM May 28, 2020Observed: 2.49 ft at 5:30AM May 28, 2020Observed: 2.49 ft at 5:45AM May 28, 2020Observed: 2.49 ft at 6:00AM May 28, 2020Observed: 2.49 ft at 6:15AM May 28, 2020Observed: 2.49 ft at 6:30AM May 28, 2020Observed: 2.49 ft at 6:45AM May 28, 2020Observed: 2.48 ft at 7:00AM May 28, 2020Observed: 2.49 ft at 7:15AM May 28, 2020Observed: 2.49 ft at 7:30AM May 28, 2020Observed: 2.49 ft at 7:45AM May 28, 2020Observed: 2.49 ft at 8:00AM May 28, 2020Observed: 2.49 ft at 8:15AM May 28, 2020Observed: 2.49 ft at 8:30AM May 28, 2020Observed: 2.49 ft at 8:45AM May 28, 2020Observed: 2.49 ft at 9:00AM May 28, 2020Observed: 2.49 ft at 9:15AM May 28, 2020Observed: 2.49 ft at 9:30AM May 28, 2020Observed: 2.49 ft at 9:45AM May 28, 2020Observed: 2.49 ft at 10:00AM May 28, 2020Observed: 2.49 ft at 10:15AM May 28, 2020Observed: 2.5 ft at 10:30AM May 28, 2020Observed: 2.5 ft at 10:45AM May 28, 2020Observed: 2.5 ft at 11:00AM May 28, 2020Observed: 2.5 ft at 11:15AM May 28, 2020Observed: 2.5 ft at 11:30AM May 28, 2020Observed: 2.5 ft at 11:45AM May 28, 2020Observed: 2.49 ft at 12:00PM May 28, 2020Observed: 2.49 ft at 12:15PM May 28, 2020Observed: 2.49 ft at 12:30PM May 28, 2020Observed: 2.49 ft at 12:45PM May 28, 2020Observed: 2.49 ft at 1:00PM May 28, 2020Observed: 2.49 ft at 1:15PM May 28, 2020Observed: 2.49 ft at 1:30PM May 28, 2020Observed: 2.49 ft at 1:45PM May 28, 2020Observed: 2.49 ft at 2:00PM May 28, 2020Observed: 2.49 ft at 2:15PM May 28, 2020Observed: 2.49 ft at 2:30PM May 28, 2020Observed: 2.49 ft at 2:45PM May 28, 2020Observed: 2.49 ft at 3:00PM May 28, 2020Observed: 2.49 ft at 3:15PM May 28, 2020Observed: 2.49 ft at 3:30PM May 28, 2020Observed: 2.49 ft at 3:45PM May 28, 2020Observed: 2.49 ft at 4:00PM May 28, 2020Observed: 2.49 ft at 4:15PM May 28, 2020Observed: 2.49 ft at 4:30PM May 28, 2020Observed: 2.49 ft at 4:45PM May 28, 2020Observed: 2.49 ft at 5:00PM May 28, 2020Observed: 2.49 ft at 5:15PM May 28, 2020Observed: 2.49 ft at 5:30PM May 28, 2020Observed: 2.49 ft at 5:45PM May 28, 2020Observed: 2.49 ft at 6:00PM May 28, 2020Observed: 2.49 ft at 6:15PM May 28, 2020Observed: 2.5 ft at 6:30PM May 28, 2020Observed: 2.49 ft at 6:45PM May 28, 2020Observed: 2.49 ft at 7:00PM May 28, 2020Observed: 2.49 ft at 7:15PM May 28, 2020Observed: 2.5 ft at 7:30PM May 28, 2020Observed: 2.5 ft at 7:45PM May 28, 2020Observed: 2.5 ft at 8:00PM May 28, 2020Observed: 2.5 ft at 8:15PM May 28, 2020Observed: 2.5 ft at 8:30PM May 28, 2020Observed: 2.5 ft at 8:45PM May 28, 2020Observed: 2.5 ft at 9:00PM May 28, 2020Observed: 2.5 ft at 9:15PM May 28, 2020Observed: 2.5 ft at 9:30PM May 28, 2020Observed: 2.51 ft at 9:45PM May 28, 2020Observed: 2.51 ft at 10:00PM May 28, 2020Observed: 2.51 ft at 10:15PM May 28, 2020Observed: 2.51 ft at 10:30PM May 28, 2020Observed: 2.52 ft at 10:45PM May 28, 2020Observed: 2.52 ft at 11:00PM May 28, 2020Observed: 2.52 ft at 11:15PM May 28, 2020Observed: 2.53 ft at 11:30PM May 28, 2020Observed: 2.53 ft at 11:45PM May 28, 2020Observed: 2.54 ft at 12:00AM May 29, 2020Observed: 2.54 ft at 12:15AM May 29, 2020Observed: 2.55 ft at 12:30AM May 29, 2020Observed: 2.55 ft at 12:45AM May 29, 2020Observed: 2.56 ft at 1:00AM May 29, 2020Observed: 2.56 ft at 1:15AM May 29, 2020Observed: 2.57 ft at 1:30AM May 29, 2020Observed: 2.58 ft at 1:45AM May 29, 2020Observed: 2.58 ft at 2:00AM May 29, 2020Observed: 2.59 ft at 2:15AM May 29, 2020Observed: 2.59 ft at 2:30AM May 29, 2020Observed: 2.59 ft at 2:45AM May 29, 2020Observed: 2.6 ft at 3:00AM May 29, 2020Observed: 2.61 ft at 3:15AM May 29, 2020Observed: 2.61 ft at 3:30AM May 29, 2020Observed: 2.61 ft at 3:45AM May 29, 2020Observed: 2.62 ft at 4:00AM May 29, 2020Observed: 2.62 ft at 4:15AM May 29, 2020Observed: 2.62 ft at 4:30AM May 29, 2020Observed: 2.62 ft at 4:45AM May 29, 2020Observed: 2.62 ft at 5:00AM May 29, 2020Observed: 2.62 ft at 5:15AM May 29, 2020Observed: 2.63 ft at 5:30AM May 29, 2020Observed: 2.62 ft at 5:45AM May 29, 2020Observed: 2.62 ft at 6:00AM May 29, 2020Observed: 2.62 ft at 6:15AM May 29, 2020Observed: 2.62 ft at 6:30AM May 29, 2020Observed: 2.62 ft at 6:45AM May 29, 2020Observed: 2.62 ft at 7:00AM May 29, 2020Observed: 2.62 ft at 7:15AM May 29, 2020Observed: 2.62 ft at 7:30AM May 29, 2020Observed: 2.61 ft at 7:45AM May 29, 2020Observed: 2.61 ft at 8:00AM May 29, 2020Observed: 2.61 ft at 8:15AM May 29, 2020Observed: 2.61 ft at 8:30AM May 29, 2020Observed: 2.6 ft at 8:45AM May 29, 2020Observed: 2.6 ft at 9:00AM May 29, 2020Observed: 2.6 ft at 9:15AM May 29, 2020Observed: 2.6 ft at 9:30AM May 29, 2020Observed: 2.6 ft at 9:45AM May 29, 2020Observed: 2.61 ft at 10:00AM May 29, 2020Observed: 2.61 ft at 10:15AM May 29, 2020Observed: 2.61 ft at 10:30AM May 29, 2020Observed: 2.61 ft at 10:45AM May 29, 2020Observed: 2.61 ft at 11:00AM May 29, 2020Observed: 2.62 ft at 11:15AM May 29, 2020Observed: 2.62 ft at 11:30AM May 29, 2020Forecast: 2.6 ft 2:00PM May 29, 2020Forecast: 2.6 ft 8:00PM May 29, 2020Forecast: 2.7 ft 2:00AM May 30, 2020Highest Forecast: 2.8 ft 8:00AM May 30, 2020Highest Forecast: 2.8 ft 2:00PM May 30, 2020Highest Forecast: 2.8 ft 8:00PM May 30, 2020Forecast: 2.7 ft 2:00AM May 31, 2020Forecast: 2.6 ft 8:00AM May 31, 2020Forecast: 2.5 ft 2:00PM May 31, 2020Forecast: 2.5 ft 8:00PM May 31, 2020Forecast: 2.5 ft 2:00AM Jun 01, 2020Forecast: 2.5 ft 8:00AM Jun 01, 2020USGS--Water Resources of the United StatesFDKM2(plotting HGIRG) Graph Created (12:40PM May 29, 2020)ObservedForecast (issued 9:19AM May 29)Latest observed value: 2.62 ft at 11:30 AM EDT 29-May-2020. Flood Stage is 15 ft
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NOTE: Forecasts for the Monocacy River near Frederick at Interstate 70 are issued routinely year-round.
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Upstream Gauge - at Monocacy Blvd. in Frederick Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 17
Flood Stage: 15
Action Stage: 13
Low Stage (in feet): -9999

Historic Crests
(1) 35.90 ft on 06/23/1972
(2) 30.80 ft on 09/26/1975
(3) 28.10 ft on 08/24/1933
(4) 25.38 ft on 10/10/1976
(5) 23.67 ft on 01/20/1996
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(P): Preliminary values subject to further review.

Recent Crests
(1) 16.62 ft on 05/06/2019
(2) 16.59 ft on 03/22/2019
(3) 16.38 ft on 12/17/2018
(4) 15.57 ft on 11/25/2018
(5) 16.32 ft on 09/28/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.50 ft on 09/11/1966

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:14
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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
30 Water reaches the second floor of Gambrill Mill on the Monocacy National Battlefield.
24 Water approaches Urbana Pike near Monocacy National Battlefield.
21 Maryland Route 26 is flooded near the Monocacy River bridge.
20 Water reaches Gambrill Mill on the Monocacy National Battlefield.
17 Significant lowland flooding is occurring along the river, with backwater flooding also occurring. Numerous roads are closed. Water is approaching the parking lot at Gambrill Mill on the Monocacy National Battlefield. Backwater flooding from Carroll Creek is likely approaching the underside of the bridge leading to the Frederick city wastewater treatment plant.
16 Much of Pinecliff Park and Rivermist Park in Frederick are flooded. Buckeystown Community Park is also flooded with water approaching the parking lot. Waters are also approaching the Frederick city wastewater treatment plant and the Ballenger Creek wastewater treatment plant. Significant backwater flooding is occurring. Several roads will be closed along the river and adjoining creeks.
15 Both banks of the river are flooded. Water begins to flood low-lying fields at Monocacy National Battlefield. Water reaches the access road of the Frederick city wastewater treatment plant. Backwater flooding is occurring on several area creeks, particularly Carroll Creek in Frederick.
14 Two low-water crossings, one on Michaels Mill Road /State Route 880/ in Buckeystown, and one on Retreat Road north of Frederick, begin to flood.
13 Water covers portions of Pinecliff Park in southeast Frederick. Water also approaches Rivermist Park in northeast Frederick.
10 The east side of the Monocacy River, or left bank, begins to flood east of Frederick. Although no structures are affected, water approaches an access road at Pinecliff Park.
5 After rain events, the river may become hazardous for recreational purposes when stages are over 5 feet.
About This Location Collapse

Latitude: 39.402778° N, Longitude: 77.366111° 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 29 231.92 ft 246.92 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:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.
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Hydrologic Resources Additional Resources
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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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