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Hydrograph River at a Glance Download
Saint Vrain Creek below Longmont Stage (ft)Flow (cfs)Observed: 9.73 ft at 1:00PM Mar 19, 2023Observed: 9.73 ft at 1:15PM Mar 19, 2023Observed: 9.73 ft at 1:30PM Mar 19, 2023Observed: 9.74 ft at 1:45PM Mar 19, 2023Observed: 9.73 ft at 2:00PM Mar 19, 2023Observed: 9.73 ft at 2:15PM Mar 19, 2023Observed: 9.72 ft at 2:30PM Mar 19, 2023Observed: 9.73 ft at 2:45PM Mar 19, 2023Observed: 9.75 ft at 3:00PM Mar 19, 2023Observed: 9.76 ft at 3:15PM Mar 19, 2023Observed: 9.75 ft at 3:30PM Mar 19, 2023Observed: 9.77 ft at 3:45PM Mar 19, 2023Observed: 9.78 ft at 4:00PM Mar 19, 2023Observed: 9.79 ft at 4:15PM Mar 19, 2023Observed: 9.79 ft at 4:30PM Mar 19, 2023Observed: 9.79 ft at 4:45PM Mar 19, 2023Observed: 9.79 ft at 5:00PM Mar 19, 2023Highest Observation: 9.8 ft at 5:15PM Mar 19, 2023Highest Observation: 9.8 ft at 5:30PM Mar 19, 2023Highest Observation: 9.8 ft at 5:45PM Mar 19, 2023Highest Observation: 9.8 ft at 6:00PM Mar 19, 2023Highest Observation: 9.8 ft at 6:15PM Mar 19, 2023Highest Observation: 9.8 ft at 6:30PM Mar 19, 2023Highest Observation: 9.8 ft at 6:45PM Mar 19, 2023Highest Observation: 9.8 ft at 7:00PM Mar 19, 2023Highest Observation: 9.8 ft at 7:15PM Mar 19, 2023Highest Observation: 9.8 ft at 7:30PM Mar 19, 2023Highest Observation: 9.8 ft at 7:45PM Mar 19, 2023Observed: 9.79 ft at 8:00PM Mar 19, 2023Observed: 9.79 ft at 8:15PM Mar 19, 2023Observed: 9.79 ft at 8:30PM Mar 19, 2023Observed: 9.78 ft at 8:45PM Mar 19, 2023Observed: 9.78 ft at 9:00PM Mar 19, 2023Observed: 9.78 ft at 9:15PM Mar 19, 2023Observed: 9.78 ft at 9:30PM Mar 19, 2023Observed: 9.77 ft at 9:45PM Mar 19, 2023Observed: 9.77 ft at 10:00PM Mar 19, 2023Observed: 9.77 ft at 10:15PM Mar 19, 2023Observed: 9.77 ft at 10:30PM Mar 19, 2023Observed: 9.77 ft at 10:45PM Mar 19, 2023Observed: 9.77 ft at 11:00PM Mar 19, 2023Observed: 9.77 ft at 11:15PM Mar 19, 2023Observed: 9.76 ft at 11:30PM Mar 19, 2023Observed: 9.77 ft at 11:45PM Mar 19, 2023Observed: 9.77 ft at 12:00AM Mar 20, 2023Observed: 9.77 ft at 12:15AM Mar 20, 2023Observed: 9.77 ft at 12:16AM Mar 20, 2023Observed: 9.77 ft at 12:30AM Mar 20, 2023Observed: 9.77 ft at 12:31AM Mar 20, 2023Observed: 9.77 ft at 12:45AM Mar 20, 2023Observed: 9.77 ft at 12:46AM Mar 20, 2023Observed: 9.77 ft at 1:00AM Mar 20, 2023Observed: 9.77 ft at 1:15AM Mar 20, 2023Observed: 9.77 ft at 1:30AM Mar 20, 2023Observed: 9.77 ft at 1:45AM Mar 20, 2023Observed: 9.76 ft at 2:00AM Mar 20, 2023Observed: 9.77 ft at 2:15AM Mar 20, 2023Observed: 9.76 ft at 2:30AM Mar 20, 2023Observed: 9.76 ft at 2:45AM Mar 20, 2023Observed: 9.77 ft at 3:00AM Mar 20, 2023Observed: 9.76 ft at 3:15AM Mar 20, 2023Observed: 9.76 ft at 3:30AM Mar 20, 2023Observed: 9.76 ft at 3:45AM Mar 20, 2023Observed: 9.76 ft at 4:00AM Mar 20, 2023Observed: 9.76 ft at 4:15AM Mar 20, 2023Observed: 9.76 ft at 4:30AM Mar 20, 2023Observed: 9.77 ft at 4:45AM Mar 20, 2023Observed: 9.77 ft at 5:00AM Mar 20, 2023Observed: 9.77 ft at 5:15AM Mar 20, 2023Observed: 9.77 ft at 5:30AM Mar 20, 2023Observed: 9.77 ft at 5:45AM Mar 20, 2023Observed: 9.78 ft at 6:00AM Mar 20, 2023Observed: 9.77 ft at 6:15AM Mar 20, 2023Observed: 9.78 ft at 6:30AM Mar 20, 2023Observed: 9.78 ft at 6:45AM Mar 20, 2023Observed: 9.78 ft at 7:00AM Mar 20, 2023Observed: 9.78 ft at 7:15AM Mar 20, 2023Observed: 9.78 ft at 7:30AM Mar 20, 2023Observed: 9.78 ft at 7:45AM Mar 20, 2023Observed: 9.78 ft at 8:00AM Mar 20, 2023Observed: 9.78 ft at 8:15AM Mar 20, 2023Observed: 9.78 ft at 8:30AM Mar 20, 2023Observed: 9.78 ft at 8:45AM Mar 20, 2023Observed: 9.78 ft at 9:00AM Mar 20, 2023Observed: 9.78 ft at 9:15AM Mar 20, 2023Observed: 9.78 ft at 9:30AM Mar 20, 2023Observed: 9.78 ft at 9:45AM Mar 20, 2023Observed: 9.77 ft at 10:00AM Mar 20, 2023Observed: 9.78 ft at 10:15AM Mar 20, 2023Observed: 9.78 ft at 10:30AM Mar 20, 2023Observed: 9.78 ft at 10:45AM Mar 20, 2023Observed: 9.77 ft at 11:00AM Mar 20, 2023Observed: 9.77 ft at 11:15AM Mar 20, 2023Observed: 9.78 ft at 11:30AM Mar 20, 2023Observed: 9.77 ft at 11:45AM Mar 20, 2023Observed: 9.77 ft at 12:00PM Mar 20, 2023Observed: 9.77 ft at 12:15PM Mar 20, 2023Observed: 9.77 ft at 12:30PM Mar 20, 2023Observed: 9.77 ft at 12:45PM Mar 20, 2023Observed: 9.77 ft at 1:00PM Mar 20, 2023Observed: 9.77 ft at 1:15PM Mar 20, 2023Observed: 9.77 ft at 1:30PM Mar 20, 2023Observed: 9.75 ft at 1:45PM Mar 20, 2023Observed: 9.73 ft at 2:00PM Mar 20, 2023Observed: 9.75 ft at 2:15PM Mar 20, 2023Observed: 9.75 ft at 2:30PM Mar 20, 2023Observed: 9.76 ft at 2:45PM Mar 20, 2023Observed: 9.76 ft at 3:00PM Mar 20, 2023Observed: 9.77 ft at 3:15PM Mar 20, 2023Observed: 9.77 ft at 3:30PM Mar 20, 2023Observed: 9.78 ft at 3:45PM Mar 20, 2023Observed: 9.78 ft at 4:00PM Mar 20, 2023Observed: 9.78 ft at 4:15PM Mar 20, 2023Observed: 9.78 ft at 4:30PM Mar 20, 2023Observed: 9.79 ft at 4:45PM Mar 20, 2023Observed: 9.79 ft at 5:00PM Mar 20, 2023Observed: 9.79 ft at 5:15PM Mar 20, 2023Observed: 9.79 ft at 5:30PM Mar 20, 2023Highest Observation: 9.8 ft at 5:45PM Mar 20, 2023Observed: 9.79 ft at 6:00PM Mar 20, 2023Observed: 9.79 ft at 6:15PM Mar 20, 2023Observed: 9.79 ft at 6:30PM Mar 20, 2023Observed: 9.79 ft at 6:45PM Mar 20, 2023Observed: 9.79 ft at 7:00PM Mar 20, 2023Observed: 9.79 ft at 7:15PM Mar 20, 2023Observed: 9.79 ft at 7:30PM Mar 20, 2023Observed: 9.79 ft at 7:45PM Mar 20, 2023Observed: 9.79 ft at 8:00PM Mar 20, 2023Observed: 9.79 ft at 8:15PM Mar 20, 2023Observed: 9.78 ft at 8:30PM Mar 20, 2023Observed: 9.78 ft at 8:45PM Mar 20, 2023Observed: 9.79 ft at 9:00PM Mar 20, 2023Observed: 9.79 ft at 9:15PM Mar 20, 2023Observed: 9.78 ft at 9:30PM Mar 20, 2023Observed: 9.78 ft at 9:45PM Mar 20, 2023Observed: 9.78 ft at 10:00PM Mar 20, 2023Observed: 9.78 ft at 10:15PM Mar 20, 2023Observed: 9.78 ft at 10:30PM Mar 20, 2023Observed: 9.78 ft at 10:45PM Mar 20, 2023Observed: 9.78 ft at 11:00PM Mar 20, 2023Observed: 9.77 ft at 11:15PM Mar 20, 2023Observed: 9.77 ft at 11:30PM Mar 20, 2023Observed: 9.77 ft at 11:45PM Mar 20, 2023Observed: 9.76 ft at 12:00AM Mar 21, 2023Observed: 9.76 ft at 12:15AM Mar 21, 2023Observed: 9.76 ft at 12:30AM Mar 21, 2023Observed: 9.75 ft at 12:45AM Mar 21, 2023Observed: 9.76 ft at 1:00AM Mar 21, 2023Observed: 9.76 ft at 1:15AM Mar 21, 2023Observed: 9.75 ft at 1:30AM Mar 21, 2023Observed: 9.75 ft at 1:45AM Mar 21, 2023Observed: 9.75 ft at 2:00AM Mar 21, 2023Observed: 9.75 ft at 2:15AM Mar 21, 2023Observed: 9.75 ft at 2:30AM Mar 21, 2023Observed: 9.75 ft at 2:45AM Mar 21, 2023Observed: 9.75 ft at 3:00AM Mar 21, 2023Observed: 9.76 ft at 3:15AM Mar 21, 2023Observed: 9.76 ft at 3:30AM Mar 21, 2023Observed: 9.76 ft at 3:45AM Mar 21, 2023Observed: 9.76 ft at 4:00AM Mar 21, 2023Observed: 9.76 ft at 4:15AM Mar 21, 2023Observed: 9.76 ft at 4:30AM Mar 21, 2023Observed: 9.76 ft at 4:45AM Mar 21, 2023Observed: 9.76 ft at 5:00AM Mar 21, 2023Observed: 9.76 ft at 5:15AM Mar 21, 2023Observed: 9.76 ft at 5:30AM Mar 21, 2023Observed: 9.76 ft at 5:45AM Mar 21, 2023Observed: 9.76 ft at 6:00AM Mar 21, 2023Observed: 9.76 ft at 6:15AM Mar 21, 2023Observed: 9.76 ft at 6:30AM Mar 21, 2023Observed: 9.76 ft at 6:45AM Mar 21, 2023Observed: 9.76 ft at 7:00AM Mar 21, 2023Observed: 9.75 ft at 7:15AM Mar 21, 2023Observed: 9.76 ft at 7:30AM Mar 21, 2023Observed: 9.75 ft at 7:45AM Mar 21, 2023Observed: 9.75 ft at 8:00AM Mar 21, 2023Observed: 9.75 ft at 8:15AM Mar 21, 2023Observed: 9.75 ft at 8:30AM Mar 21, 2023Observed: 9.76 ft at 8:45AM Mar 21, 2023Observed: 9.75 ft at 9:00AM Mar 21, 2023Observed: 9.75 ft at 9:15AM Mar 21, 2023Observed: 9.75 ft at 9:30AM Mar 21, 2023Observed: 9.74 ft at 9:45AM Mar 21, 2023Observed: 9.74 ft at 10:00AM Mar 21, 2023Observed: 9.74 ft at 10:15AM Mar 21, 2023Observed: 9.74 ft at 10:30AM Mar 21, 2023Observed: 9.74 ft at 10:45AM Mar 21, 2023Observed: 9.74 ft at 11:00AM Mar 21, 2023Observed: 9.74 ft at 11:15AM Mar 21, 2023Observed: 9.73 ft at 11:30AM Mar 21, 2023Observed: 9.71 ft at 11:45AM Mar 21, 2023Observed: 9.72 ft at 12:00PM Mar 21, 2023Observed: 9.73 ft at 12:15PM Mar 21, 2023Observed: 9.73 ft at 12:30PM Mar 21, 2023Observed: 9.73 ft at 12:45PM Mar 21, 2023Observed: 9.73 ft at 1:00PM Mar 21, 2023Observed: 9.71 ft at 1:15PM Mar 21, 2023Observed: 9.72 ft at 1:30PM Mar 21, 2023Observed: 9.72 ft at 1:45PM Mar 21, 2023Observed: 9.72 ft at 2:00PM Mar 21, 2023Observed: 9.72 ft at 2:15PM Mar 21, 2023Observed: 9.71 ft at 2:30PM Mar 21, 2023Observed: 9.72 ft at 2:45PM Mar 21, 2023Observed: 9.73 ft at 3:00PM Mar 21, 2023Observed: 9.74 ft at 3:15PM Mar 21, 2023Observed: 9.74 ft at 3:30PM Mar 21, 2023Observed: 9.74 ft at 3:45PM Mar 21, 2023Observed: 9.75 ft at 4:00PM Mar 21, 2023Observed: 9.74 ft at 4:15PM Mar 21, 2023Observed: 9.76 ft at 4:30PM Mar 21, 2023Observed: 9.76 ft at 4:45PM Mar 21, 2023Observed: 9.75 ft at 5:00PM Mar 21, 2023Observed: 9.76 ft at 5:15PM Mar 21, 2023Observed: 9.76 ft at 5:30PM Mar 21, 2023Observed: 9.75 ft at 5:45PM Mar 21, 2023Observed: 9.75 ft at 6:00PM Mar 21, 2023Observed: 9.75 ft at 6:15PM Mar 21, 2023Observed: 9.75 ft at 6:30PM Mar 21, 2023Observed: 9.75 ft at 6:45PM Mar 21, 2023Observed: 9.76 ft at 7:00PM Mar 21, 2023Observed: 9.75 ft at 7:15PM Mar 21, 2023Observed: 9.75 ft at 7:30PM Mar 21, 2023Observed: 9.75 ft at 7:45PM Mar 21, 2023Observed: 9.76 ft at 8:00PM Mar 21, 2023Observed: 9.75 ft at 8:15PM Mar 21, 2023Observed: 9.75 ft at 8:30PM Mar 21, 2023Observed: 9.76 ft at 8:45PM Mar 21, 2023Observed: 9.76 ft at 9:00PM Mar 21, 2023Observed: 9.76 ft at 9:15PM Mar 21, 2023Observed: 9.76 ft at 9:30PM Mar 21, 2023Observed: 9.76 ft at 9:45PM Mar 21, 2023Observed: 9.76 ft at 10:00PM Mar 21, 2023Observed: 9.76 ft at 10:15PM Mar 21, 2023Observed: 9.76 ft at 10:30PM Mar 21, 2023Observed: 9.76 ft at 10:45PM Mar 21, 2023Observed: 9.76 ft at 11:00PM Mar 21, 2023Observed: 9.76 ft at 11:15PM Mar 21, 2023Observed: 9.76 ft at 11:30PM Mar 21, 2023Observed: 9.76 ft at 11:45PM Mar 21, 2023Observed: 9.76 ft at 12:00AM Mar 22, 2023Observed: 9.76 ft at 12:15AM Mar 22, 2023Observed: 9.76 ft at 12:16AM Mar 22, 2023Observed: 9.76 ft at 12:30AM Mar 22, 2023Observed: 9.76 ft at 12:31AM Mar 22, 2023Observed: 9.76 ft at 12:45AM Mar 22, 2023Observed: 9.76 ft at 12:46AM Mar 22, 2023Observed: 9.76 ft at 1:00AM Mar 22, 2023Observed: 9.76 ft at 1:15AM Mar 22, 2023Observed: 9.76 ft at 1:30AM Mar 22, 2023Observed: 9.76 ft at 1:45AM Mar 22, 2023Observed: 9.76 ft at 2:00AM Mar 22, 2023Observed: 9.76 ft at 2:15AM Mar 22, 2023Observed: 9.76 ft at 2:30AM Mar 22, 2023Observed: 9.76 ft at 2:45AM Mar 22, 2023Observed: 9.76 ft at 3:00AM Mar 22, 2023Observed: 9.76 ft at 3:15AM Mar 22, 2023Observed: 9.76 ft at 3:30AM Mar 22, 2023Observed: 9.76 ft at 3:45AM Mar 22, 2023Observed: 9.76 ft at 4:00AM Mar 22, 2023Observed: 9.75 ft at 4:15AM Mar 22, 2023Observed: 9.75 ft at 4:30AM Mar 22, 2023Observed: 9.75 ft at 4:45AM Mar 22, 2023Observed: 9.75 ft at 5:00AM Mar 22, 2023Observed: 9.75 ft at 5:15AM Mar 22, 2023Observed: 9.75 ft at 5:30AM Mar 22, 2023Observed: 9.75 ft at 5:45AM Mar 22, 2023Observed: 9.75 ft at 6:00AM Mar 22, 2023Observed: 9.75 ft at 6:15AM Mar 22, 2023Observed: 9.75 ft at 6:30AM Mar 22, 2023Observed: 9.75 ft at 6:45AM Mar 22, 2023Observed: 9.75 ft at 7:00AM Mar 22, 2023Observed: 9.74 ft at 7:15AM Mar 22, 2023Observed: 9.74 ft at 7:30AM Mar 22, 2023Observed: 9.74 ft at 7:45AM Mar 22, 2023Observed: 9.74 ft at 8:00AM Mar 22, 2023Observed: 9.74 ft at 8:15AM Mar 22, 2023Observed: 9.74 ft at 8:30AM Mar 22, 2023Observed: 9.74 ft at 8:45AM Mar 22, 2023Observed: 9.73 ft at 9:00AM Mar 22, 2023Observed: 9.74 ft at 9:15AM Mar 22, 2023Observed: 9.74 ft at 9:30AM Mar 22, 2023Observed: 9.73 ft at 9:45AM Mar 22, 2023Observed: 9.74 ft at 10:00AM Mar 22, 2023Observed: 9.73 ft at 10:15AM Mar 22, 2023Observed: 9.73 ft at 10:30AM Mar 22, 2023Observed: 9.73 ft at 10:45AM Mar 22, 2023Observed: 9.73 ft at 11:00AM Mar 22, 2023Observed: 9.73 ft at 11:15AM Mar 22, 2023Observed: 9.72 ft at 11:30AM Mar 22, 2023Observed: 9.72 ft at 11:45AM Mar 22, 2023Observed: 9.72 ft at 12:00PM Mar 22, 2023Observed: 9.72 ft at 12:15PM Mar 22, 2023Observed: 9.72 ft at 12:30PM Mar 22, 2023Observed: 9.72 ft at 12:45PM Mar 22, 2023Observed: 9.72 ft at 1:00PM Mar 22, 2023Observed: 9.72 ft at 1:15PM Mar 22, 2023Observed: 9.72 ft at 1:30PM Mar 22, 2023Observed: 9.72 ft at 1:45PM Mar 22, 2023Observed: 9.72 ft at 2:00PM Mar 22, 2023Observed: 9.72 ft at 2:15PM Mar 22, 2023Observed: 9.72 ft at 2:30PM Mar 22, 2023Observed: 9.72 ft at 2:45PM Mar 22, 2023Observed: 9.72 ft at 3:00PM Mar 22, 2023Observed: 9.72 ft at 3:15PM Mar 22, 2023Observed: 9.72 ft at 3:30PM Mar 22, 2023Observed: 9.73 ft at 3:45PM Mar 22, 2023Observed: 9.72 ft at 4:00PM Mar 22, 2023Observed: 9.72 ft at 4:15PM Mar 22, 2023Observed: 9.72 ft at 4:30PM Mar 22, 2023Observed: 9.73 ft at 4:45PM Mar 22, 2023Observed: 9.73 ft at 5:00PM Mar 22, 2023Observed: 9.73 ft at 5:15PM Mar 22, 2023Observed: 9.73 ft at 5:30PM Mar 22, 2023Observed: 9.73 ft at 5:45PM Mar 22, 2023Observed: 9.73 ft at 6:00PM Mar 22, 2023Observed: 9.73 ft at 6:15PM Mar 22, 2023Observed: 9.73 ft at 6:30PM Mar 22, 2023Observed: 9.73 ft at 6:45PM Mar 22, 2023Observed: 9.74 ft at 7:00PM Mar 22, 2023Observed: 9.74 ft at 7:15PM Mar 22, 2023Observed: 9.75 ft at 7:30PM Mar 22, 2023Observed: 9.75 ft at 7:45PM Mar 22, 2023Observed: 9.75 ft at 8:00PM Mar 22, 2023Observed: 9.76 ft at 8:15PM Mar 22, 2023Observed: 9.76 ft at 8:30PM Mar 22, 2023Observed: 9.76 ft at 8:45PM Mar 22, 2023Observed: 9.76 ft at 9:00PM Mar 22, 2023Observed: 9.76 ft at 9:15PM Mar 22, 2023Observed: 9.76 ft at 9:30PM Mar 22, 2023Observed: 9.76 ft at 9:45PM Mar 22, 2023Observed: 9.76 ft at 10:00PM Mar 22, 2023Observed: 9.77 ft at 10:15PM Mar 22, 2023Observed: 9.77 ft at 10:30PM Mar 22, 2023Observed: 9.77 ft at 10:45PM Mar 22, 2023Observed: 9.77 ft at 11:00PM Mar 22, 2023Observed: 9.77 ft at 11:15PM Mar 22, 2023Observed: 9.76 ft at 11:30PM Mar 22, 2023Observed: 9.76 ft at 11:45PM Mar 22, 2023Observed: 9.77 ft at 12:00AM Mar 23, 2023Observed: 9.76 ft at 12:15AM Mar 23, 2023Observed: 9.76 ft at 12:16AM Mar 23, 2023Observed: 9.76 ft at 12:30AM Mar 23, 2023Observed: 9.76 ft at 12:31AM Mar 23, 2023Observed: 9.77 ft at 12:45AM Mar 23, 2023Observed: 9.77 ft at 12:46AM Mar 23, 2023Observed: 9.76 ft at 1:00AM Mar 23, 2023Observed: 9.77 ft at 1:15AM Mar 23, 2023Observed: 9.77 ft at 1:30AM Mar 23, 2023Observed: 9.77 ft at 1:45AM Mar 23, 2023Observed: 9.77 ft at 2:00AM Mar 23, 2023Observed: 9.77 ft at 2:15AM Mar 23, 2023Observed: 9.77 ft at 2:30AM Mar 23, 2023Observed: 9.76 ft at 2:45AM Mar 23, 2023Observed: 9.77 ft at 3:00AM Mar 23, 2023Observed: 9.77 ft at 3:15AM Mar 23, 2023Observed: 9.77 ft at 3:30AM Mar 23, 2023Observed: 9.77 ft at 3:45AM Mar 23, 2023Observed: 9.76 ft at 4:00AM Mar 23, 2023Observed: 9.76 ft at 4:15AM Mar 23, 2023Observed: 9.76 ft at 4:30AM Mar 23, 2023Observed: 9.76 ft at 4:45AM Mar 23, 2023Observed: 9.77 ft at 5:00AM Mar 23, 2023Observed: 9.76 ft at 5:15AM Mar 23, 2023Observed: 9.76 ft at 5:30AM Mar 23, 2023Observed: 9.76 ft at 5:45AM Mar 23, 2023Observed: 9.76 ft at 6:00AM Mar 23, 2023Observed: 9.76 ft at 6:15AM Mar 23, 2023Observed: 9.76 ft at 6:30AM Mar 23, 2023Observed: 9.76 ft at 6:45AM Mar 23, 2023Observed: 9.75 ft at 7:00AM Mar 23, 2023Observed: 9.75 ft at 7:15AM Mar 23, 2023Observed: 9.75 ft at 7:30AM Mar 23, 2023Observed: 9.75 ft at 7:45AM Mar 23, 2023Observed: 9.75 ft at 8:00AM Mar 23, 2023Observed: 9.76 ft at 8:15AM Mar 23, 2023Observed: 9.75 ft at 8:30AM Mar 23, 2023Observed: 9.75 ft at 8:45AM Mar 23, 2023Observed: 9.75 ft at 9:00AM Mar 23, 2023Observed: 9.75 ft at 9:15AM Mar 23, 2023Observed: 9.75 ft at 9:30AM Mar 23, 2023Observed: 9.74 ft at 9:45AM Mar 23, 2023Observed: 9.75 ft at 10:00AM Mar 23, 2023Observed: 9.74 ft at 10:15AM Mar 23, 2023Observed: 9.75 ft at 10:30AM Mar 23, 2023Observed: 9.74 ft at 10:45AM Mar 23, 2023Observed: 9.74 ft at 11:00AM Mar 23, 2023Observed: 9.74 ft at 11:15AM Mar 23, 2023Observed: 9.74 ft at 11:30AM Mar 23, 2023Observed: 9.73 ft at 11:45AM Mar 23, 2023Observed: 9.74 ft at 12:00PM Mar 23, 2023Observed: 9.73 ft at 12:15PM Mar 23, 2023Observed: 9.73 ft at 12:30PM Mar 23, 2023Observed: 9.73 ft at 12:45PM Mar 23, 2023Observed: 9.73 ft at 1:00PM Mar 23, 2023Observed: 9.73 ft at 1:15PM Mar 23, 2023Observed: 9.73 ft at 1:30PM Mar 23, 2023Observed: 9.73 ft at 1:45PM Mar 23, 2023Observed: 9.73 ft at 2:00PM Mar 23, 2023Observed: 9.73 ft at 2:15PM Mar 23, 2023Observed: 9.73 ft at 2:30PM Mar 23, 2023Observed: 9.73 ft at 2:45PM Mar 23, 2023Observed: 9.73 ft at 3:00PM Mar 23, 2023Observed: 9.73 ft at 3:15PM Mar 23, 2023Observed: 9.73 ft at 3:30PM Mar 23, 2023Observed: 9.73 ft at 3:45PM Mar 23, 2023Observed: 9.73 ft at 4:00PM Mar 23, 2023Observed: 9.73 ft at 4:15PM Mar 23, 2023Observed: 9.73 ft at 4:30PM Mar 23, 2023Observed: 9.73 ft at 4:45PM Mar 23, 2023Observed: 9.73 ft at 5:00PM Mar 23, 2023Observed: 9.73 ft at 5:15PM Mar 23, 2023Observed: 9.73 ft at 5:30PM Mar 23, 2023Observed: 9.72 ft at 5:45PM Mar 23, 2023Observed: 9.73 ft at 6:00PM Mar 23, 2023Observed: 9.73 ft at 6:15PM Mar 23, 2023Observed: 9.74 ft at 6:30PM Mar 23, 2023Observed: 9.74 ft at 6:45PM Mar 23, 2023Observed: 9.74 ft at 7:00PM Mar 23, 2023Observed: 9.74 ft at 7:15PM Mar 23, 2023Observed: 9.74 ft at 7:30PM Mar 23, 2023Observed: 9.74 ft at 7:45PM Mar 23, 2023Observed: 9.75 ft at 8:00PM Mar 23, 2023Observed: 9.75 ft at 8:15PM Mar 23, 2023Observed: 9.75 ft at 8:30PM Mar 23, 2023Observed: 9.75 ft at 8:45PM Mar 23, 2023Observed: 9.76 ft at 9:00PM Mar 23, 2023Observed: 9.76 ft at 9:15PM Mar 23, 2023Observed: 9.76 ft at 9:30PM Mar 23, 2023Observed: 9.77 ft at 9:45PM Mar 23, 2023Observed: 9.77 ft at 10:00PM Mar 23, 2023Observed: 9.77 ft at 10:15PM Mar 23, 2023Observed: 9.76 ft at 10:30PM Mar 23, 2023Observed: 9.77 ft at 10:45PM Mar 23, 2023Observed: 9.77 ft at 11:00PM Mar 23, 2023Observed: 9.77 ft at 11:15PM Mar 23, 2023Observed: 9.77 ft at 11:30PM Mar 23, 2023Observed: 9.77 ft at 11:45PM Mar 23, 2023Observed: 9.77 ft at 12:00AM Mar 24, 2023Observed: 9.77 ft at 12:15AM Mar 24, 2023Observed: 9.77 ft at 12:16AM Mar 24, 2023Observed: 9.77 ft at 12:30AM Mar 24, 2023Observed: 9.77 ft at 12:31AM Mar 24, 2023Observed: 9.77 ft at 12:45AM Mar 24, 2023Observed: 9.77 ft at 12:46AM Mar 24, 2023Observed: 9.77 ft at 1:00AM Mar 24, 2023Observed: 9.77 ft at 1:15AM Mar 24, 2023Observed: 9.77 ft at 1:30AM Mar 24, 2023Observed: 9.76 ft at 1:45AM Mar 24, 2023Observed: 9.77 ft at 2:00AM Mar 24, 2023Observed: 9.76 ft at 2:15AM Mar 24, 2023Observed: 9.77 ft at 2:30AM Mar 24, 2023Observed: 9.76 ft at 2:45AM Mar 24, 2023Observed: 9.76 ft at 3:00AM Mar 24, 2023Observed: 9.76 ft at 3:15AM Mar 24, 2023Observed: 9.75 ft at 3:30AM Mar 24, 2023Observed: 9.75 ft at 3:45AM Mar 24, 2023Observed: 9.75 ft at 4:00AM Mar 24, 2023Observed: 9.75 ft at 4:15AM Mar 24, 2023Observed: 9.75 ft at 4:30AM Mar 24, 2023Observed: 9.75 ft at 4:45AM Mar 24, 2023Observed: 9.75 ft at 5:00AM Mar 24, 2023Observed: 9.75 ft at 5:15AM Mar 24, 2023Observed: 9.75 ft at 5:30AM Mar 24, 2023Observed: 9.75 ft at 5:45AM Mar 24, 2023Observed: 9.75 ft at 6:00AM Mar 24, 2023Observed: 9.74 ft at 6:15AM Mar 24, 2023Observed: 9.74 ft at 6:30AM Mar 24, 2023Observed: 9.74 ft at 6:45AM Mar 24, 2023Observed: 9.74 ft at 7:00AM Mar 24, 2023Observed: 9.74 ft at 7:15AM Mar 24, 2023Observed: 9.74 ft at 7:30AM Mar 24, 2023Observed: 9.74 ft at 7:45AM Mar 24, 2023Observed: 9.73 ft at 8:00AM Mar 24, 2023Observed: 9.73 ft at 8:15AM Mar 24, 2023Observed: 9.73 ft at 8:30AM Mar 24, 2023Observed: 9.72 ft at 8:45AM Mar 24, 2023Observed: 9.73 ft at 9:00AM Mar 24, 2023Observed: 9.72 ft at 9:15AM Mar 24, 2023Observed: 9.72 ft at 9:30AM Mar 24, 2023Observed: 9.72 ft at 9:45AM Mar 24, 2023Observed: 9.72 ft at 10:00AM Mar 24, 2023Observed: 9.72 ft at 10:15AM Mar 24, 2023Observed: 9.72 ft at 10:30AM Mar 24, 2023Observed: 9.71 ft at 10:45AM Mar 24, 2023Observed: 9.72 ft at 11:00AM Mar 24, 2023Observed: 9.71 ft at 11:15AM Mar 24, 2023Observed: 9.71 ft at 11:30AM Mar 24, 2023Observed: 9.71 ft at 11:45AM Mar 24, 2023Observed: 9.71 ft at 12:00PM Mar 24, 2023USGS--Water Resources of the United StatesSVLC2(plotting HGIRG) Graph Created (12:45PM Mar 24, 2023)ObservedLatest observed value: 9.71 ft at 12:00 PM MDT 24-Mar-2023. Flood Stage is 15.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts are not available for the Saint Vrain Creek below Longmont. Only observed stages are available for this point.

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Upstream Gauge - at Hygiene Upstream Gauge Downstream Gauge Downstream Gauge - near Platteville
Flood Categories (in feet)
Major Flood Stage: 18.5
Moderate Flood Stage: 17
Flood Stage: 15.5
Action Stage: 15
Low Stage (in feet): -9999

Historic Crests
(1) 14.56 ft on 05/09/2015
(2) 13.44 ft on 05/18/2017
(3) 12.97 ft on 06/01/2014
(4) 12.24 ft on 07/02/2019
(5) 12.17 ft on 06/14/2016
(6) 12.08 ft on 06/07/2021
(7) 11.31 ft on 06/19/2018
(8) 11.20 ft on 06/06/2020

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.08 ft on 06/07/2021
(2) 11.20 ft on 06/06/2020
(3) 12.24 ft on 07/02/2019
(4) 11.31 ft on 06/19/2018
(5) 13.44 ft on 05/18/2017
(6) 12.17 ft on 06/14/2016
(7) 14.56 ft on 05/09/2015
(8) 12.97 ft on 06/01/2014

(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:14
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 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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18.5 Major, extensive flooding occurs as a wide expanse of the creek spreads out horizontally across the floodplain.
17.5 Flooding affects large areas along the creek with numerous roads and structures impacted.
16.5 There is significant flooding of agricultural land along the creek.
15.5 Parks and agricultural fields and parks near the creek flood. Railroad tracks may be impacted.
15 Water begins to overflow into the lowest areas adjacent to Saint Vrain Creek below its confluence with Boulder Creek.
About This Location Collapse

Latitude: 40.160500° N, Longitude: 105.007900° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 15.5 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 4849 4864.5 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 U.S. Geological Survey

Current/Historical Observations:
Additional Information Collapse
Observations provided by the U.S. Geological Survey in cooperation with the City of Longmont
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
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