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Hydrograph River at a Glance Download
Monocacy River near Frederick at Interstate 70 Stage (ft)Flow (kcfs)Highest Observation: 1.63 ft at 3:45AM Sep 17, 2019Highest Observation: 1.63 ft at 4:00AM Sep 17, 2019Highest Observation: 1.63 ft at 4:15AM Sep 17, 2019Highest Observation: 1.63 ft at 4:30AM Sep 17, 2019Highest Observation: 1.63 ft at 4:45AM Sep 17, 2019Highest Observation: 1.63 ft at 5:00AM Sep 17, 2019Highest Observation: 1.63 ft at 5:15AM Sep 17, 2019Highest Observation: 1.63 ft at 5:30AM Sep 17, 2019Highest Observation: 1.63 ft at 5:45AM Sep 17, 2019Highest Observation: 1.63 ft at 6:00AM Sep 17, 2019Observed: 1.62 ft at 6:15AM Sep 17, 2019Observed: 1.62 ft at 6:30AM Sep 17, 2019Observed: 1.62 ft at 6:45AM Sep 17, 2019Observed: 1.62 ft at 7:00AM Sep 17, 2019Highest Observation: 1.63 ft at 7:15AM Sep 17, 2019Highest Observation: 1.63 ft at 7:30AM Sep 17, 2019Highest Observation: 1.63 ft at 7:45AM Sep 17, 2019Highest Observation: 1.63 ft at 8:00AM Sep 17, 2019Highest Observation: 1.63 ft at 8:15AM Sep 17, 2019Highest Observation: 1.63 ft at 8:30AM Sep 17, 2019Highest Observation: 1.63 ft at 8:45AM Sep 17, 2019Highest Observation: 1.63 ft at 9:00AM Sep 17, 2019Highest Observation: 1.63 ft at 9:15AM Sep 17, 2019Highest Observation: 1.63 ft at 9:30AM Sep 17, 2019Highest Observation: 1.63 ft at 9:45AM Sep 17, 2019Highest Observation: 1.63 ft at 10:00AM Sep 17, 2019Highest Observation: 1.63 ft at 10:15AM Sep 17, 2019Highest Observation: 1.63 ft at 10:30AM Sep 17, 2019Highest Observation: 1.63 ft at 10:45AM Sep 17, 2019Highest Observation: 1.63 ft at 11:00AM Sep 17, 2019Highest Observation: 1.63 ft at 11:15AM Sep 17, 2019Highest Observation: 1.63 ft at 11:30AM Sep 17, 2019Highest Observation: 1.63 ft at 11:45AM Sep 17, 2019Highest Observation: 1.63 ft at 12:00PM Sep 17, 2019Highest Observation: 1.63 ft at 12:15PM Sep 17, 2019Highest Observation: 1.63 ft at 12:30PM Sep 17, 2019Highest Observation: 1.63 ft at 12:45PM Sep 17, 2019Highest Observation: 1.63 ft at 1:00PM Sep 17, 2019Highest Observation: 1.63 ft at 1:15PM Sep 17, 2019Observed: 1.62 ft at 1:30PM Sep 17, 2019Observed: 1.62 ft at 1:45PM Sep 17, 2019Observed: 1.62 ft at 2:00PM Sep 17, 2019Observed: 1.62 ft at 2:15PM Sep 17, 2019Observed: 1.62 ft at 2:30PM Sep 17, 2019Observed: 1.62 ft at 2:45PM Sep 17, 2019Observed: 1.62 ft at 3:00PM Sep 17, 2019Observed: 1.62 ft at 3:15PM Sep 17, 2019Observed: 1.62 ft at 3:30PM Sep 17, 2019Observed: 1.62 ft at 3:45PM Sep 17, 2019Observed: 1.62 ft at 4:00PM Sep 17, 2019Observed: 1.62 ft at 4:15PM Sep 17, 2019Observed: 1.62 ft at 4:30PM Sep 17, 2019Observed: 1.62 ft at 4:45PM Sep 17, 2019Observed: 1.62 ft at 5:00PM Sep 17, 2019Observed: 1.62 ft at 5:15PM Sep 17, 2019Observed: 1.62 ft at 5:30PM Sep 17, 2019Observed: 1.62 ft at 5:45PM Sep 17, 2019Observed: 1.62 ft at 6:00PM Sep 17, 2019Observed: 1.62 ft at 6:15PM Sep 17, 2019Observed: 1.61 ft at 6:30PM Sep 17, 2019Observed: 1.61 ft at 6:45PM Sep 17, 2019Observed: 1.61 ft at 7:00PM Sep 17, 2019Observed: 1.61 ft at 7:15PM Sep 17, 2019Observed: 1.61 ft at 7:30PM Sep 17, 2019Observed: 1.61 ft at 7:45PM Sep 17, 2019Observed: 1.61 ft at 8:00PM Sep 17, 2019Observed: 1.61 ft at 8:15PM Sep 17, 2019Observed: 1.6 ft at 8:30PM Sep 17, 2019Observed: 1.61 ft at 8:45PM Sep 17, 2019Observed: 1.6 ft at 9:00PM Sep 17, 2019Observed: 1.6 ft at 9:15PM Sep 17, 2019Observed: 1.6 ft at 9:30PM Sep 17, 2019Observed: 1.6 ft at 9:45PM Sep 17, 2019Observed: 1.6 ft at 10:00PM Sep 17, 2019Observed: 1.6 ft at 10:15PM Sep 17, 2019Observed: 1.6 ft at 10:30PM Sep 17, 2019Observed: 1.6 ft at 10:45PM Sep 17, 2019Observed: 1.6 ft at 11:00PM Sep 17, 2019Observed: 1.6 ft at 11:15PM Sep 17, 2019Observed: 1.6 ft at 11:30PM Sep 17, 2019Observed: 1.6 ft at 11:45PM Sep 17, 2019Observed: 1.6 ft at 12:00AM Sep 18, 2019Observed: 1.6 ft at 12:15AM Sep 18, 2019Observed: 1.6 ft at 12:30AM Sep 18, 2019Observed: 1.6 ft at 12:45AM Sep 18, 2019Observed: 1.6 ft at 1:00AM Sep 18, 2019Observed: 1.6 ft at 1:15AM Sep 18, 2019Observed: 1.6 ft at 1:30AM Sep 18, 2019Observed: 1.6 ft at 1:45AM Sep 18, 2019Observed: 1.6 ft at 2:00AM Sep 18, 2019Observed: 1.6 ft at 2:15AM Sep 18, 2019Observed: 1.6 ft at 2:30AM Sep 18, 2019Observed: 1.6 ft at 2:45AM Sep 18, 2019Observed: 1.59 ft at 3:00AM Sep 18, 2019Observed: 1.59 ft at 3:15AM Sep 18, 2019Observed: 1.59 ft at 3:30AM Sep 18, 2019Observed: 1.59 ft at 3:45AM Sep 18, 2019Observed: 1.59 ft at 4:00AM Sep 18, 2019Observed: 1.59 ft at 4:15AM Sep 18, 2019Observed: 1.59 ft at 4:30AM Sep 18, 2019Observed: 1.59 ft at 4:45AM Sep 18, 2019Observed: 1.59 ft at 5:00AM Sep 18, 2019Observed: 1.59 ft at 5:15AM Sep 18, 2019Observed: 1.58 ft at 5:30AM Sep 18, 2019Observed: 1.58 ft at 5:45AM Sep 18, 2019Observed: 1.58 ft at 6:00AM Sep 18, 2019Observed: 1.58 ft at 6:15AM Sep 18, 2019Observed: 1.58 ft at 6:30AM Sep 18, 2019Observed: 1.58 ft at 6:45AM Sep 18, 2019Observed: 1.58 ft at 7:00AM Sep 18, 2019Observed: 1.58 ft at 7:15AM Sep 18, 2019Observed: 1.58 ft at 7:30AM Sep 18, 2019Observed: 1.58 ft at 7:45AM Sep 18, 2019Observed: 1.58 ft at 8:00AM Sep 18, 2019Observed: 1.58 ft at 8:15AM Sep 18, 2019Observed: 1.58 ft at 8:30AM Sep 18, 2019Observed: 1.58 ft at 8:45AM Sep 18, 2019Observed: 1.58 ft at 9:00AM Sep 18, 2019Observed: 1.58 ft at 9:15AM Sep 18, 2019Observed: 1.58 ft at 9:30AM Sep 18, 2019Observed: 1.58 ft at 9:45AM Sep 18, 2019Observed: 1.58 ft at 10:00AM Sep 18, 2019Observed: 1.58 ft at 10:15AM Sep 18, 2019Observed: 1.57 ft at 10:30AM Sep 18, 2019Observed: 1.58 ft at 10:45AM Sep 18, 2019Observed: 1.58 ft at 11:00AM Sep 18, 2019Observed: 1.57 ft at 11:15AM Sep 18, 2019Observed: 1.58 ft at 11:30AM Sep 18, 2019Observed: 1.58 ft at 11:45AM Sep 18, 2019Observed: 1.58 ft at 12:00PM Sep 18, 2019Observed: 1.58 ft at 12:15PM Sep 18, 2019Observed: 1.58 ft at 12:30PM Sep 18, 2019Observed: 1.58 ft at 12:45PM Sep 18, 2019Observed: 1.58 ft at 1:00PM Sep 18, 2019Observed: 1.57 ft at 1:15PM Sep 18, 2019Observed: 1.57 ft at 1:30PM Sep 18, 2019Observed: 1.57 ft at 1:45PM Sep 18, 2019Observed: 1.57 ft at 2:00PM Sep 18, 2019Observed: 1.57 ft at 2:15PM Sep 18, 2019Observed: 1.57 ft at 2:30PM Sep 18, 2019Observed: 1.57 ft at 2:45PM Sep 18, 2019Observed: 1.57 ft at 3:00PM Sep 18, 2019Observed: 1.57 ft at 3:15PM Sep 18, 2019Observed: 1.57 ft at 3:30PM Sep 18, 2019Observed: 1.57 ft at 3:45PM Sep 18, 2019Observed: 1.58 ft at 4:00PM Sep 18, 2019Observed: 1.57 ft at 4:15PM Sep 18, 2019Observed: 1.57 ft at 4:30PM Sep 18, 2019Observed: 1.57 ft at 4:45PM Sep 18, 2019Observed: 1.57 ft at 5:00PM Sep 18, 2019Observed: 1.57 ft at 5:15PM Sep 18, 2019Observed: 1.57 ft at 5:30PM Sep 18, 2019Observed: 1.57 ft at 5:45PM Sep 18, 2019Observed: 1.57 ft at 6:00PM Sep 18, 2019Observed: 1.57 ft at 6:15PM Sep 18, 2019Observed: 1.57 ft at 6:30PM Sep 18, 2019Observed: 1.57 ft at 6:45PM Sep 18, 2019Observed: 1.58 ft at 7:00PM Sep 18, 2019Observed: 1.58 ft at 7:15PM Sep 18, 2019Observed: 1.58 ft at 7:30PM Sep 18, 2019Observed: 1.58 ft at 7:45PM Sep 18, 2019Observed: 1.58 ft at 8:00PM Sep 18, 2019Observed: 1.58 ft at 8:15PM Sep 18, 2019Observed: 1.58 ft at 8:30PM Sep 18, 2019Observed: 1.58 ft at 8:45PM Sep 18, 2019Observed: 1.58 ft at 9:00PM Sep 18, 2019Observed: 1.58 ft at 9:15PM Sep 18, 2019Observed: 1.58 ft at 9:30PM Sep 18, 2019Observed: 1.58 ft at 9:45PM Sep 18, 2019Observed: 1.58 ft at 10:00PM Sep 18, 2019Observed: 1.58 ft at 10:15PM Sep 18, 2019Observed: 1.58 ft at 10:30PM Sep 18, 2019Observed: 1.58 ft at 10:45PM Sep 18, 2019Observed: 1.58 ft at 11:00PM Sep 18, 2019Observed: 1.58 ft at 11:15PM Sep 18, 2019Observed: 1.58 ft at 11:30PM Sep 18, 2019Observed: 1.57 ft at 11:45PM Sep 18, 2019Observed: 1.57 ft at 12:00AM Sep 19, 2019Observed: 1.58 ft at 12:15AM Sep 19, 2019Observed: 1.58 ft at 12:30AM Sep 19, 2019Observed: 1.58 ft at 12:45AM Sep 19, 2019Observed: 1.58 ft at 1:00AM Sep 19, 2019Observed: 1.58 ft at 1:15AM Sep 19, 2019Observed: 1.58 ft at 1:30AM Sep 19, 2019Observed: 1.57 ft at 1:45AM Sep 19, 2019Observed: 1.58 ft at 2:00AM Sep 19, 2019Observed: 1.58 ft at 2:15AM Sep 19, 2019Observed: 1.58 ft at 2:30AM Sep 19, 2019Observed: 1.57 ft at 2:45AM Sep 19, 2019Observed: 1.57 ft at 3:00AM Sep 19, 2019Observed: 1.57 ft at 3:15AM Sep 19, 2019Observed: 1.57 ft at 3:30AM Sep 19, 2019Observed: 1.57 ft at 3:45AM Sep 19, 2019Observed: 1.57 ft at 4:00AM Sep 19, 2019Observed: 1.57 ft at 4:15AM Sep 19, 2019Observed: 1.57 ft at 4:30AM Sep 19, 2019Observed: 1.56 ft at 4:45AM Sep 19, 2019Observed: 1.56 ft at 5:00AM Sep 19, 2019Observed: 1.56 ft at 5:15AM Sep 19, 2019Observed: 1.56 ft at 5:30AM Sep 19, 2019Observed: 1.56 ft at 5:45AM Sep 19, 2019Observed: 1.56 ft at 6:00AM Sep 19, 2019Observed: 1.56 ft at 6:15AM Sep 19, 2019Observed: 1.56 ft at 6:30AM Sep 19, 2019Observed: 1.56 ft at 6:45AM Sep 19, 2019Observed: 1.56 ft at 7:00AM Sep 19, 2019Observed: 1.56 ft at 7:15AM Sep 19, 2019Observed: 1.56 ft at 7:30AM Sep 19, 2019Observed: 1.56 ft at 7:45AM Sep 19, 2019Observed: 1.56 ft at 8:00AM Sep 19, 2019Observed: 1.56 ft at 8:15AM Sep 19, 2019Observed: 1.56 ft at 8:30AM Sep 19, 2019Observed: 1.56 ft at 8:45AM Sep 19, 2019Observed: 1.56 ft at 9:00AM Sep 19, 2019Observed: 1.55 ft at 9:15AM Sep 19, 2019Observed: 1.55 ft at 9:30AM Sep 19, 2019Observed: 1.55 ft at 9:45AM Sep 19, 2019Observed: 1.55 ft at 10:00AM Sep 19, 2019Observed: 1.55 ft at 10:15AM Sep 19, 2019Observed: 1.55 ft at 10:30AM Sep 19, 2019Observed: 1.55 ft at 10:45AM Sep 19, 2019Observed: 1.55 ft at 11:00AM Sep 19, 2019Observed: 1.55 ft at 11:15AM Sep 19, 2019Observed: 1.55 ft at 11:30AM Sep 19, 2019Observed: 1.55 ft at 11:45AM Sep 19, 2019Observed: 1.55 ft at 12:00PM Sep 19, 2019Observed: 1.55 ft at 12:15PM Sep 19, 2019Observed: 1.55 ft at 12:30PM Sep 19, 2019Observed: 1.55 ft at 12:45PM Sep 19, 2019Observed: 1.55 ft at 1:00PM Sep 19, 2019Observed: 1.55 ft at 1:15PM Sep 19, 2019Observed: 1.55 ft at 1:30PM Sep 19, 2019Observed: 1.55 ft at 1:45PM Sep 19, 2019Observed: 1.54 ft at 2:00PM Sep 19, 2019Observed: 1.54 ft at 2:15PM Sep 19, 2019Observed: 1.54 ft at 2:30PM Sep 19, 2019Observed: 1.54 ft at 2:45PM Sep 19, 2019Observed: 1.54 ft at 3:00PM Sep 19, 2019Observed: 1.54 ft at 3:15PM Sep 19, 2019Observed: 1.54 ft at 3:30PM Sep 19, 2019Observed: 1.54 ft at 3:45PM Sep 19, 2019Observed: 1.54 ft at 4:00PM Sep 19, 2019Observed: 1.53 ft at 4:15PM Sep 19, 2019Observed: 1.53 ft at 4:30PM Sep 19, 2019Observed: 1.53 ft at 4:45PM Sep 19, 2019Observed: 1.53 ft at 5:00PM Sep 19, 2019Observed: 1.53 ft at 5:15PM Sep 19, 2019Observed: 1.53 ft at 5:30PM Sep 19, 2019Observed: 1.53 ft at 5:45PM Sep 19, 2019Observed: 1.53 ft at 6:00PM Sep 19, 2019Observed: 1.53 ft at 6:15PM Sep 19, 2019Observed: 1.53 ft at 6:30PM Sep 19, 2019Observed: 1.53 ft at 6:45PM Sep 19, 2019Observed: 1.52 ft at 7:00PM Sep 19, 2019Observed: 1.53 ft at 7:15PM Sep 19, 2019Observed: 1.53 ft at 7:30PM Sep 19, 2019Observed: 1.53 ft at 7:45PM Sep 19, 2019Observed: 1.52 ft at 8:00PM Sep 19, 2019Observed: 1.52 ft at 8:15PM Sep 19, 2019Observed: 1.52 ft at 8:30PM Sep 19, 2019Observed: 1.52 ft at 8:45PM Sep 19, 2019Observed: 1.52 ft at 9:00PM Sep 19, 2019Observed: 1.53 ft at 9:15PM Sep 19, 2019Observed: 1.53 ft at 9:30PM Sep 19, 2019Observed: 1.53 ft at 9:45PM Sep 19, 2019Observed: 1.53 ft at 10:00PM Sep 19, 2019Observed: 1.53 ft at 10:15PM Sep 19, 2019Observed: 1.53 ft at 10:30PM Sep 19, 2019Observed: 1.53 ft at 10:45PM Sep 19, 2019Observed: 1.53 ft at 11:00PM Sep 19, 2019Observed: 1.53 ft at 11:15PM Sep 19, 2019Observed: 1.53 ft at 11:30PM Sep 19, 2019Observed: 1.53 ft at 11:45PM Sep 19, 2019Observed: 1.53 ft at 12:00AM Sep 20, 2019Observed: 1.53 ft at 12:15AM Sep 20, 2019Observed: 1.53 ft at 12:30AM Sep 20, 2019Observed: 1.53 ft at 12:45AM Sep 20, 2019Observed: 1.53 ft at 1:00AM Sep 20, 2019Observed: 1.53 ft at 1:15AM Sep 20, 2019Observed: 1.53 ft at 1:30AM Sep 20, 2019Observed: 1.53 ft at 1:45AM Sep 20, 2019Observed: 1.53 ft at 2:00AM Sep 20, 2019Observed: 1.53 ft at 2:15AM Sep 20, 2019Observed: 1.53 ft at 2:30AM Sep 20, 2019Observed: 1.53 ft at 2:45AM Sep 20, 2019Observed: 1.53 ft at 3:00AM Sep 20, 2019Observed: 1.53 ft at 3:15AM Sep 20, 2019Observed: 1.53 ft at 3:30AM Sep 20, 2019Observed: 1.53 ft at 3:45AM Sep 20, 2019Observed: 1.53 ft at 4:00AM Sep 20, 2019Observed: 1.53 ft at 4:15AM Sep 20, 2019Observed: 1.53 ft at 4:30AM Sep 20, 2019Observed: 1.53 ft at 4:45AM Sep 20, 2019Observed: 1.53 ft at 5:00AM Sep 20, 2019Observed: 1.53 ft at 5:15AM Sep 20, 2019Observed: 1.52 ft at 5:30AM Sep 20, 2019Observed: 1.52 ft at 5:45AM Sep 20, 2019Observed: 1.52 ft at 6:00AM Sep 20, 2019Observed: 1.52 ft at 6:15AM Sep 20, 2019Observed: 1.52 ft at 6:30AM Sep 20, 2019Observed: 1.52 ft at 6:45AM Sep 20, 2019Observed: 1.52 ft at 7:00AM Sep 20, 2019Observed: 1.52 ft at 7:15AM Sep 20, 2019Observed: 1.52 ft at 7:30AM Sep 20, 2019Observed: 1.52 ft at 7:45AM Sep 20, 2019Observed: 1.52 ft at 8:00AM Sep 20, 2019Observed: 1.52 ft at 8:15AM Sep 20, 2019Observed: 1.52 ft at 8:30AM Sep 20, 2019Observed: 1.52 ft at 8:45AM Sep 20, 2019Observed: 1.52 ft at 9:00AM Sep 20, 2019Observed: 1.52 ft at 9:15AM Sep 20, 2019Observed: 1.52 ft at 9:30AM Sep 20, 2019Observed: 1.52 ft at 9:45AM Sep 20, 2019Observed: 1.52 ft at 10:00AM Sep 20, 2019Observed: 1.52 ft at 10:15AM Sep 20, 2019Observed: 1.52 ft at 10:30AM Sep 20, 2019Observed: 1.52 ft at 10:45AM Sep 20, 2019Observed: 1.52 ft at 11:00AM Sep 20, 2019Observed: 1.52 ft at 11:15AM Sep 20, 2019Observed: 1.52 ft at 11:30AM Sep 20, 2019Observed: 1.52 ft at 11:45AM Sep 20, 2019Observed: 1.52 ft at 12:00PM Sep 20, 2019Observed: 1.52 ft at 12:15PM Sep 20, 2019Observed: 1.52 ft at 12:30PM Sep 20, 2019Observed: 1.52 ft at 12:45PM Sep 20, 2019Observed: 1.52 ft at 1:00PM Sep 20, 2019Observed: 1.52 ft at 1:15PM Sep 20, 2019Observed: 1.52 ft at 1:30PM Sep 20, 2019Observed: 1.52 ft at 1:45PM Sep 20, 2019Observed: 1.52 ft at 2:00PM Sep 20, 2019Observed: 1.52 ft at 2:15PM Sep 20, 2019Observed: 1.53 ft at 2:30PM Sep 20, 2019Observed: 1.53 ft at 2:45PM Sep 20, 2019Observed: 1.53 ft at 3:00PM Sep 20, 2019Observed: 1.53 ft at 3:15PM Sep 20, 2019Observed: 1.53 ft at 3:30PM Sep 20, 2019Observed: 1.53 ft at 3:45PM Sep 20, 2019Observed: 1.53 ft at 4:00PM Sep 20, 2019Observed: 1.53 ft at 4:15PM Sep 20, 2019Observed: 1.53 ft at 4:30PM Sep 20, 2019Observed: 1.53 ft at 4:45PM Sep 20, 2019Observed: 1.53 ft at 5:00PM Sep 20, 2019Observed: 1.53 ft at 5:15PM Sep 20, 2019Observed: 1.53 ft at 5:30PM Sep 20, 2019Observed: 1.53 ft at 5:45PM Sep 20, 2019Observed: 1.53 ft at 6:00PM Sep 20, 2019Observed: 1.53 ft at 6:15PM Sep 20, 2019Observed: 1.53 ft at 6:30PM Sep 20, 2019Observed: 1.53 ft at 6:45PM Sep 20, 2019Observed: 1.53 ft at 7:00PM Sep 20, 2019Observed: 1.53 ft at 7:15PM Sep 20, 2019Observed: 1.53 ft at 7:30PM Sep 20, 2019Observed: 1.54 ft at 7:45PM Sep 20, 2019Observed: 1.54 ft at 8:00PM Sep 20, 2019Observed: 1.53 ft at 8:15PM Sep 20, 2019Observed: 1.53 ft at 8:30PM Sep 20, 2019Observed: 1.53 ft at 8:45PM Sep 20, 2019Observed: 1.53 ft at 9:00PM Sep 20, 2019Observed: 1.53 ft at 9:15PM Sep 20, 2019Observed: 1.53 ft at 9:30PM Sep 20, 2019Observed: 1.53 ft at 9:45PM Sep 20, 2019Observed: 1.53 ft at 10:00PM Sep 20, 2019Observed: 1.53 ft at 10:15PM Sep 20, 2019Observed: 1.53 ft at 10:30PM Sep 20, 2019Observed: 1.53 ft at 10:45PM Sep 20, 2019Observed: 1.53 ft at 11:00PM Sep 20, 2019Observed: 1.53 ft at 11:15PM Sep 20, 2019Observed: 1.53 ft at 11:30PM Sep 20, 2019Observed: 1.53 ft at 11:45PM Sep 20, 2019Observed: 1.53 ft at 12:00AM Sep 21, 2019Observed: 1.53 ft at 12:15AM Sep 21, 2019Observed: 1.53 ft at 12:30AM Sep 21, 2019Observed: 1.52 ft at 12:45AM Sep 21, 2019Observed: 1.52 ft at 1:00AM Sep 21, 2019Observed: 1.52 ft at 1:15AM Sep 21, 2019Observed: 1.52 ft at 1:30AM Sep 21, 2019Observed: 1.52 ft at 1:45AM Sep 21, 2019Observed: 1.52 ft at 2:00AM Sep 21, 2019Observed: 1.52 ft at 2:15AM Sep 21, 2019Observed: 1.52 ft at 2:30AM Sep 21, 2019Observed: 1.52 ft at 2:45AM Sep 21, 2019Observed: 1.53 ft at 3:00AM Sep 21, 2019Observed: 1.52 ft at 3:15AM Sep 21, 2019Observed: 1.52 ft at 3:30AM Sep 21, 2019Observed: 1.52 ft at 3:45AM Sep 21, 2019Observed: 1.52 ft at 4:00AM Sep 21, 2019Observed: 1.52 ft at 4:15AM Sep 21, 2019Observed: 1.52 ft at 4:30AM Sep 21, 2019Observed: 1.52 ft at 4:45AM Sep 21, 2019Observed: 1.52 ft at 5:00AM Sep 21, 2019Observed: 1.52 ft at 5:15AM Sep 21, 2019Observed: 1.52 ft at 5:30AM Sep 21, 2019Observed: 1.52 ft at 5:45AM Sep 21, 2019Observed: 1.53 ft at 6:00AM Sep 21, 2019Observed: 1.53 ft at 6:15AM Sep 21, 2019Observed: 1.52 ft at 6:30AM Sep 21, 2019Observed: 1.53 ft at 6:45AM Sep 21, 2019Observed: 1.52 ft at 7:00AM Sep 21, 2019Observed: 1.52 ft at 7:15AM Sep 21, 2019Observed: 1.52 ft at 7:30AM Sep 21, 2019Observed: 1.52 ft at 7:45AM Sep 21, 2019Observed: 1.52 ft at 8:00AM Sep 21, 2019Observed: 1.52 ft at 8:15AM Sep 21, 2019Observed: 1.52 ft at 8:30AM Sep 21, 2019Observed: 1.52 ft at 8:45AM Sep 21, 2019Observed: 1.52 ft at 9:00AM Sep 21, 2019Observed: 1.52 ft at 9:15AM Sep 21, 2019Observed: 1.52 ft at 9:30AM Sep 21, 2019Observed: 1.52 ft at 9:45AM Sep 21, 2019Observed: 1.52 ft at 10:00AM Sep 21, 2019Observed: 1.52 ft at 10:15AM Sep 21, 2019Observed: 1.52 ft at 10:30AM Sep 21, 2019Observed: 1.52 ft at 10:45AM Sep 21, 2019Observed: 1.52 ft at 11:00AM Sep 21, 2019Observed: 1.52 ft at 11:15AM Sep 21, 2019Observed: 1.52 ft at 11:30AM Sep 21, 2019Observed: 1.51 ft at 11:45AM Sep 21, 2019Observed: 1.51 ft at 12:00PM Sep 21, 2019Observed: 1.51 ft at 12:15PM Sep 21, 2019Observed: 1.51 ft at 12:30PM Sep 21, 2019Observed: 1.51 ft at 12:45PM Sep 21, 2019Observed: 1.51 ft at 1:00PM Sep 21, 2019Observed: 1.51 ft at 1:15PM Sep 21, 2019Observed: 1.51 ft at 1:30PM Sep 21, 2019Observed: 1.51 ft at 1:45PM Sep 21, 2019Observed: 1.52 ft at 2:00PM Sep 21, 2019Observed: 1.52 ft at 2:15PM Sep 21, 2019Observed: 1.52 ft at 2:30PM Sep 21, 2019Observed: 1.52 ft at 2:45PM Sep 21, 2019Observed: 1.52 ft at 3:00PM Sep 21, 2019Observed: 1.52 ft at 3:15PM Sep 21, 2019Observed: 1.52 ft at 3:30PM Sep 21, 2019Observed: 1.52 ft at 3:45PM Sep 21, 2019Observed: 1.52 ft at 4:00PM Sep 21, 2019Observed: 1.52 ft at 4:15PM Sep 21, 2019Observed: 1.52 ft at 4:30PM Sep 21, 2019Observed: 1.52 ft at 4:45PM Sep 21, 2019Observed: 1.52 ft at 5:00PM Sep 21, 2019Observed: 1.52 ft at 5:15PM Sep 21, 2019Observed: 1.52 ft at 5:30PM Sep 21, 2019Observed: 1.52 ft at 5:45PM Sep 21, 2019Observed: 1.52 ft at 6:00PM Sep 21, 2019Observed: 1.52 ft at 6:15PM Sep 21, 2019Observed: 1.52 ft at 6:30PM Sep 21, 2019Observed: 1.52 ft at 6:45PM Sep 21, 2019Observed: 1.52 ft at 7:00PM Sep 21, 2019Observed: 1.52 ft at 7:15PM Sep 21, 2019Observed: 1.52 ft at 7:30PM Sep 21, 2019Observed: 1.52 ft at 7:45PM Sep 21, 2019Observed: 1.52 ft at 8:00PM Sep 21, 2019Observed: 1.52 ft at 8:15PM Sep 21, 2019Observed: 1.52 ft at 8:30PM Sep 21, 2019Observed: 1.52 ft at 8:45PM Sep 21, 2019Observed: 1.52 ft at 9:00PM Sep 21, 2019Observed: 1.52 ft at 9:15PM Sep 21, 2019Observed: 1.52 ft at 9:30PM Sep 21, 2019Observed: 1.52 ft at 9:45PM Sep 21, 2019Observed: 1.52 ft at 10:00PM Sep 21, 2019Observed: 1.52 ft at 10:15PM Sep 21, 2019Observed: 1.52 ft at 10:30PM Sep 21, 2019Observed: 1.52 ft at 10:45PM Sep 21, 2019Observed: 1.52 ft at 11:00PM Sep 21, 2019Observed: 1.51 ft at 11:15PM Sep 21, 2019Observed: 1.51 ft at 11:30PM Sep 21, 2019Observed: 1.51 ft at 11:45PM Sep 21, 2019Observed: 1.51 ft at 12:00AM Sep 22, 2019Observed: 1.51 ft at 12:15AM Sep 22, 2019Observed: 1.51 ft at 12:30AM Sep 22, 2019Observed: 1.51 ft at 12:45AM Sep 22, 2019Observed: 1.51 ft at 1:00AM Sep 22, 2019Observed: 1.51 ft at 1:15AM Sep 22, 2019Observed: 1.51 ft at 1:30AM Sep 22, 2019Observed: 1.51 ft at 1:45AM Sep 22, 2019Observed: 1.51 ft at 2:00AM Sep 22, 2019Observed: 1.51 ft at 2:15AM Sep 22, 2019Observed: 1.51 ft at 2:30AM Sep 22, 2019Highest Forecast: 1.5 ft 8:00AM Sep 22, 2019Highest Forecast: 1.5 ft 2:00PM Sep 22, 2019Highest Forecast: 1.5 ft 8:00PM Sep 22, 2019Highest Forecast: 1.5 ft 2:00AM Sep 23, 2019Highest Forecast: 1.5 ft 8:00AM Sep 23, 2019Highest Forecast: 1.5 ft 2:00PM Sep 23, 2019Highest Forecast: 1.5 ft 8:00PM Sep 23, 2019Highest Forecast: 1.5 ft 2:00AM Sep 24, 2019Highest Forecast: 1.5 ft 8:00AM Sep 24, 2019USGS--Water Resources of the United StatesFDKM2(plotting HGIRG) Graph Created (3:39AM Sep 22, 2019)ObservedForecast (issued 9:07AM Sep 21)Latest observed value: 1.51 ft at 2:30 AM EDT 22-Sep-2019. 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
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(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.
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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.
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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.
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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
3 Day (SREF) 7 Day (NAEFS) 7 Day (GEFS)
SREF Ensemble NAEFS Ensemble  GEFS Ensemble 

Note: Use the official hydrograph at the top of this web page for river levels within the next 48 hours.

See the Product Description Document link for more details on the interpretation of the 3,7 day graphics. 

Click individual graphics to enlarge.
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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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