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Hydrograph River at a Glance Download
Saint Vrain Creek at Lyons Stage (ft)Observed: 2.68 ft at 11:00AM Mar 26, 2023Observed: 2.68 ft at 11:15AM Mar 26, 2023Observed: 2.68 ft at 11:30AM Mar 26, 2023Observed: 2.68 ft at 11:45AM Mar 26, 2023Observed: 2.68 ft at 12:00PM Mar 26, 2023Observed: 2.68 ft at 12:15PM Mar 26, 2023Observed: 2.68 ft at 12:30PM Mar 26, 2023Observed: 2.68 ft at 12:45PM Mar 26, 2023Observed: 2.69 ft at 1:00PM Mar 26, 2023Observed: 2.69 ft at 1:15PM Mar 26, 2023Observed: 2.69 ft at 1:30PM Mar 26, 2023Observed: 2.69 ft at 1:45PM Mar 26, 2023Observed: 2.69 ft at 2:00PM Mar 26, 2023Observed: 2.69 ft at 2:15PM Mar 26, 2023Observed: 2.69 ft at 2:30PM Mar 26, 2023Observed: 2.69 ft at 2:45PM Mar 26, 2023Observed: 2.69 ft at 3:00PM Mar 26, 2023Observed: 2.69 ft at 3:15PM Mar 26, 2023Observed: 2.69 ft at 3:30PM Mar 26, 2023Observed: 2.69 ft at 3:45PM Mar 26, 2023Observed: 2.69 ft at 4:00PM Mar 26, 2023Observed: 2.69 ft at 4:15PM Mar 26, 2023Observed: 2.69 ft at 4:30PM Mar 26, 2023Observed: 2.69 ft at 4:45PM Mar 26, 2023Observed: 2.69 ft at 5:00PM Mar 26, 2023Observed: 2.69 ft at 5:15PM Mar 26, 2023Observed: 2.69 ft at 5:30PM Mar 26, 2023Observed: 2.69 ft at 5:45PM Mar 26, 2023Observed: 2.69 ft at 6:00PM Mar 26, 2023Observed: 2.69 ft at 6:15PM Mar 26, 2023Observed: 2.68 ft at 6:30PM Mar 26, 2023Observed: 2.68 ft at 6:45PM Mar 26, 2023Observed: 2.68 ft at 7:00PM Mar 26, 2023Observed: 2.69 ft at 7:15PM Mar 26, 2023Observed: 2.69 ft at 7:30PM Mar 26, 2023Observed: 2.69 ft at 7:45PM Mar 26, 2023Observed: 2.69 ft at 8:00PM Mar 26, 2023Observed: 2.7 ft at 8:15PM Mar 26, 2023Observed: 2.7 ft at 8:30PM Mar 26, 2023Observed: 2.7 ft at 8:32PM Mar 26, 2023Observed: 2.71 ft at 8:45PM Mar 26, 2023Observed: 2.71 ft at 8:47PM Mar 26, 2023Observed: 2.72 ft at 9:00PM Mar 26, 2023Observed: 2.72 ft at 9:02PM Mar 26, 2023Observed: 2.73 ft at 9:15PM Mar 26, 2023Observed: 2.73 ft at 9:30PM Mar 26, 2023Observed: 2.74 ft at 9:45PM Mar 26, 2023Observed: 2.74 ft at 10:00PM Mar 26, 2023Observed: 2.74 ft at 10:15PM Mar 26, 2023Observed: 2.74 ft at 10:30PM Mar 26, 2023Observed: 2.74 ft at 10:45PM Mar 26, 2023Highest Observation: 2.75 ft at 11:00PM Mar 26, 2023Highest Observation: 2.75 ft at 11:15PM Mar 26, 2023Highest Observation: 2.75 ft at 11:30PM Mar 26, 2023Highest Observation: 2.75 ft at 11:45PM Mar 26, 2023Highest Observation: 2.75 ft at 12:00AM Mar 27, 2023Highest Observation: 2.75 ft at 12:15AM Mar 27, 2023Highest Observation: 2.75 ft at 12:30AM Mar 27, 2023Highest Observation: 2.75 ft at 12:45AM Mar 27, 2023Highest Observation: 2.75 ft at 1:00AM Mar 27, 2023Observed: 2.74 ft at 1:15AM Mar 27, 2023Observed: 2.74 ft at 1:30AM Mar 27, 2023Observed: 2.74 ft at 1:45AM Mar 27, 2023Observed: 2.74 ft at 2:00AM Mar 27, 2023Observed: 2.74 ft at 2:15AM Mar 27, 2023Observed: 2.74 ft at 2:30AM Mar 27, 2023Observed: 2.74 ft at 2:45AM Mar 27, 2023Observed: 2.73 ft at 3:00AM Mar 27, 2023Observed: 2.73 ft at 3:15AM Mar 27, 2023Observed: 2.73 ft at 3:30AM Mar 27, 2023Observed: 2.73 ft at 3:45AM Mar 27, 2023Observed: 2.73 ft at 4:00AM Mar 27, 2023Observed: 2.73 ft at 4:15AM Mar 27, 2023Observed: 2.72 ft at 4:30AM Mar 27, 2023Observed: 2.72 ft at 4:45AM Mar 27, 2023Observed: 2.72 ft at 5:00AM Mar 27, 2023Observed: 2.72 ft at 5:15AM Mar 27, 2023Observed: 2.72 ft at 5:30AM Mar 27, 2023Observed: 2.72 ft at 5:45AM Mar 27, 2023Observed: 2.72 ft at 6:00AM Mar 27, 2023Observed: 2.72 ft at 6:15AM Mar 27, 2023Observed: 2.71 ft at 6:30AM Mar 27, 2023Observed: 2.71 ft at 6:45AM Mar 27, 2023Observed: 2.71 ft at 7:00AM Mar 27, 2023Observed: 2.7 ft at 7:15AM Mar 27, 2023Observed: 2.7 ft at 7:30AM Mar 27, 2023Observed: 2.7 ft at 7:45AM Mar 27, 2023Observed: 2.7 ft at 8:00AM Mar 27, 2023Observed: 2.7 ft at 8:15AM Mar 27, 2023Observed: 2.69 ft at 8:30AM Mar 27, 2023Observed: 2.69 ft at 8:31AM Mar 27, 2023Observed: 2.69 ft at 8:45AM Mar 27, 2023Observed: 2.69 ft at 8:46AM Mar 27, 2023Observed: 2.69 ft at 9:00AM Mar 27, 2023Observed: 2.69 ft at 9:01AM Mar 27, 2023Observed: 2.69 ft at 9:15AM Mar 27, 2023Observed: 2.69 ft at 9:30AM Mar 27, 2023Observed: 2.69 ft at 9:45AM Mar 27, 2023Observed: 2.69 ft at 10:00AM Mar 27, 2023Observed: 2.69 ft at 10:15AM Mar 27, 2023Observed: 2.69 ft at 10:30AM Mar 27, 2023Observed: 2.69 ft at 10:45AM Mar 27, 2023Observed: 2.69 ft at 11:00AM Mar 27, 2023Observed: 2.69 ft at 11:15AM Mar 27, 2023Observed: 2.69 ft at 11:30AM Mar 27, 2023Observed: 2.69 ft at 11:45AM Mar 27, 2023Observed: 2.69 ft at 12:00PM Mar 27, 2023Observed: 2.69 ft at 12:15PM Mar 27, 2023Observed: 2.69 ft at 12:30PM Mar 27, 2023Observed: 2.69 ft at 12:45PM Mar 27, 2023Observed: 2.69 ft at 1:00PM Mar 27, 2023Observed: 2.7 ft at 1:15PM Mar 27, 2023Observed: 2.69 ft at 1:30PM Mar 27, 2023Observed: 2.7 ft at 1:45PM Mar 27, 2023Observed: 2.7 ft at 2:00PM Mar 27, 2023Observed: 2.7 ft at 2:15PM Mar 27, 2023Observed: 2.7 ft at 2:30PM Mar 27, 2023Observed: 2.69 ft at 2:45PM Mar 27, 2023Observed: 2.69 ft at 3:00PM Mar 27, 2023Observed: 2.7 ft at 3:15PM Mar 27, 2023Observed: 2.7 ft at 3:30PM Mar 27, 2023Observed: 2.7 ft at 3:45PM Mar 27, 2023Observed: 2.7 ft at 4:00PM Mar 27, 2023Observed: 2.69 ft at 4:15PM Mar 27, 2023Observed: 2.7 ft at 4:30PM Mar 27, 2023Observed: 2.7 ft at 4:45PM Mar 27, 2023Observed: 2.7 ft at 5:00PM Mar 27, 2023Observed: 2.7 ft at 5:15PM Mar 27, 2023Observed: 2.7 ft at 5:30PM Mar 27, 2023Observed: 2.7 ft at 5:45PM Mar 27, 2023Observed: 2.7 ft at 6:00PM Mar 27, 2023Observed: 2.7 ft at 6:15PM Mar 27, 2023Observed: 2.7 ft at 6:30PM Mar 27, 2023Observed: 2.7 ft at 6:45PM Mar 27, 2023Observed: 2.7 ft at 7:00PM Mar 27, 2023Observed: 2.7 ft at 7:15PM Mar 27, 2023Observed: 2.7 ft at 7:30PM Mar 27, 2023Observed: 2.7 ft at 7:45PM Mar 27, 2023Observed: 2.7 ft at 8:00PM Mar 27, 2023Observed: 2.7 ft at 8:15PM Mar 27, 2023Observed: 2.7 ft at 8:30PM Mar 27, 2023Observed: 2.7 ft at 8:31PM Mar 27, 2023Observed: 2.7 ft at 8:45PM Mar 27, 2023Observed: 2.7 ft at 8:46PM Mar 27, 2023Observed: 2.7 ft at 9:00PM Mar 27, 2023Observed: 2.7 ft at 9:01PM Mar 27, 2023Observed: 2.7 ft at 9:15PM Mar 27, 2023Observed: 2.7 ft at 9:30PM Mar 27, 2023Observed: 2.7 ft at 9:45PM Mar 27, 2023Observed: 2.7 ft at 10:00PM Mar 27, 2023Observed: 2.7 ft at 10:15PM Mar 27, 2023Observed: 2.7 ft at 10:30PM Mar 27, 2023Observed: 2.7 ft at 10:45PM Mar 27, 2023Observed: 2.7 ft at 11:00PM Mar 27, 2023Observed: 2.7 ft at 11:15PM Mar 27, 2023Observed: 2.7 ft at 11:30PM Mar 27, 2023Observed: 2.7 ft at 11:45PM Mar 27, 2023Observed: 2.7 ft at 12:00AM Mar 28, 2023Observed: 2.7 ft at 12:15AM Mar 28, 2023Observed: 2.69 ft at 12:30AM Mar 28, 2023Observed: 2.68 ft at 12:45AM Mar 28, 2023Observed: 2.67 ft at 1:00AM Mar 28, 2023Observed: 2.67 ft at 1:15AM Mar 28, 2023Observed: 2.66 ft at 1:30AM Mar 28, 2023Observed: 2.66 ft at 1:45AM Mar 28, 2023Observed: 2.66 ft at 2:00AM Mar 28, 2023Observed: 2.66 ft at 2:15AM Mar 28, 2023Observed: 2.66 ft at 2:30AM Mar 28, 2023Observed: 2.66 ft at 2:45AM Mar 28, 2023Observed: 2.66 ft at 3:00AM Mar 28, 2023Observed: 2.65 ft at 3:15AM Mar 28, 2023Observed: 2.64 ft at 3:30AM Mar 28, 2023Observed: 2.64 ft at 3:45AM Mar 28, 2023Observed: 2.65 ft at 4:00AM Mar 28, 2023Observed: 2.66 ft at 4:15AM Mar 28, 2023Observed: 2.66 ft at 4:30AM Mar 28, 2023Observed: 2.66 ft at 4:45AM Mar 28, 2023Observed: 2.66 ft at 5:00AM Mar 28, 2023Observed: 2.66 ft at 5:15AM Mar 28, 2023Observed: 2.66 ft at 5:30AM Mar 28, 2023Observed: 2.65 ft at 5:45AM Mar 28, 2023Observed: 2.65 ft at 6:00AM Mar 28, 2023Observed: 2.64 ft at 6:15AM Mar 28, 2023Observed: 2.63 ft at 6:30AM Mar 28, 2023Observed: 2.63 ft at 6:45AM Mar 28, 2023Observed: 2.63 ft at 7:00AM Mar 28, 2023Observed: 2.63 ft at 7:15AM Mar 28, 2023Observed: 2.63 ft at 7:30AM Mar 28, 2023Observed: 2.63 ft at 7:45AM Mar 28, 2023Observed: 2.63 ft at 8:00AM Mar 28, 2023Observed: 2.64 ft at 8:15AM Mar 28, 2023Observed: 2.65 ft at 8:30AM Mar 28, 2023Observed: 2.66 ft at 8:45AM Mar 28, 2023Observed: 2.66 ft at 8:46AM Mar 28, 2023Observed: 2.68 ft at 9:00AM Mar 28, 2023Observed: 2.68 ft at 9:01AM Mar 28, 2023Observed: 2.7 ft at 9:15AM Mar 28, 2023Observed: 2.7 ft at 9:16AM Mar 28, 2023Observed: 2.72 ft at 9:30AM Mar 28, 2023Observed: 2.73 ft at 9:45AM Mar 28, 2023Observed: 2.73 ft at 10:00AM Mar 28, 2023Observed: 2.71 ft at 10:15AM Mar 28, 2023Observed: 2.69 ft at 10:30AM Mar 28, 2023Observed: 2.68 ft at 10:45AM Mar 28, 2023Observed: 2.67 ft at 11:00AM Mar 28, 2023Observed: 2.67 ft at 11:15AM Mar 28, 2023Observed: 2.67 ft at 11:30AM Mar 28, 2023Observed: 2.67 ft at 11:45AM Mar 28, 2023Observed: 2.67 ft at 12:00PM Mar 28, 2023Observed: 2.67 ft at 12:15PM Mar 28, 2023Observed: 2.67 ft at 12:30PM Mar 28, 2023Observed: 2.67 ft at 12:45PM Mar 28, 2023Observed: 2.68 ft at 1:00PM Mar 28, 2023Observed: 2.69 ft at 1:15PM Mar 28, 2023Observed: 2.7 ft at 1:30PM Mar 28, 2023Observed: 2.7 ft at 1:45PM Mar 28, 2023Observed: 2.7 ft at 2:00PM Mar 28, 2023Observed: 2.7 ft at 2:15PM Mar 28, 2023Observed: 2.69 ft at 2:30PM Mar 28, 2023Observed: 2.69 ft at 2:45PM Mar 28, 2023Observed: 2.69 ft at 3:00PM Mar 28, 2023Observed: 2.69 ft at 3:15PM Mar 28, 2023Observed: 2.69 ft at 3:30PM Mar 28, 2023Observed: 2.68 ft at 3:45PM Mar 28, 2023Observed: 2.68 ft at 4:00PM Mar 28, 2023Observed: 2.68 ft at 4:15PM Mar 28, 2023Observed: 2.69 ft at 4:30PM Mar 28, 2023Observed: 2.69 ft at 4:45PM Mar 28, 2023Observed: 2.69 ft at 5:00PM Mar 28, 2023Observed: 2.7 ft at 5:15PM Mar 28, 2023Observed: 2.7 ft at 5:30PM Mar 28, 2023Observed: 2.7 ft at 5:45PM Mar 28, 2023Observed: 2.7 ft at 6:00PM Mar 28, 2023Observed: 2.7 ft at 6:15PM Mar 28, 2023Observed: 2.7 ft at 6:30PM Mar 28, 2023Observed: 2.7 ft at 6:45PM Mar 28, 2023Observed: 2.7 ft at 7:00PM Mar 28, 2023Observed: 2.71 ft at 7:15PM Mar 28, 2023Observed: 2.73 ft at 7:30PM Mar 28, 2023Observed: 2.74 ft at 7:45PM Mar 28, 2023Observed: 2.74 ft at 8:00PM Mar 28, 2023Observed: 2.74 ft at 8:15PM Mar 28, 2023Observed: 2.74 ft at 8:30PM Mar 28, 2023Observed: 2.74 ft at 8:45PM Mar 28, 2023Observed: 2.74 ft at 8:47PM Mar 28, 2023Observed: 2.74 ft at 9:00PM Mar 28, 2023Observed: 2.74 ft at 9:02PM Mar 28, 2023Observed: 2.74 ft at 9:15PM Mar 28, 2023Observed: 2.74 ft at 9:17PM Mar 28, 2023Observed: 2.74 ft at 9:30PM Mar 28, 2023Observed: 2.74 ft at 9:45PM Mar 28, 2023Observed: 2.74 ft at 10:00PM Mar 28, 2023Observed: 2.73 ft at 10:15PM Mar 28, 2023Observed: 2.73 ft at 10:30PM Mar 28, 2023Observed: 2.73 ft at 10:45PM Mar 28, 2023Observed: 2.73 ft at 11:00PM Mar 28, 2023Observed: 2.73 ft at 11:15PM Mar 28, 2023Observed: 2.73 ft at 11:30PM Mar 28, 2023Observed: 2.73 ft at 11:45PM Mar 28, 2023Observed: 2.72 ft at 12:00AM Mar 29, 2023Observed: 2.72 ft at 12:15AM Mar 29, 2023Observed: 2.72 ft at 12:30AM Mar 29, 2023Observed: 2.72 ft at 12:45AM Mar 29, 2023Observed: 2.72 ft at 1:00AM Mar 29, 2023Observed: 2.72 ft at 1:15AM Mar 29, 2023Observed: 2.72 ft at 1:30AM Mar 29, 2023Observed: 2.72 ft at 1:45AM Mar 29, 2023Observed: 2.72 ft at 2:00AM Mar 29, 2023Observed: 2.71 ft at 2:15AM Mar 29, 2023Observed: 2.71 ft at 2:30AM Mar 29, 2023Observed: 2.7 ft at 2:45AM Mar 29, 2023Observed: 2.7 ft at 3:00AM Mar 29, 2023Observed: 2.69 ft at 3:15AM Mar 29, 2023Observed: 2.69 ft at 3:30AM Mar 29, 2023Observed: 2.69 ft at 3:45AM Mar 29, 2023Observed: 2.69 ft at 4:00AM Mar 29, 2023Observed: 2.69 ft at 4:15AM Mar 29, 2023Observed: 2.68 ft at 4:30AM Mar 29, 2023Observed: 2.68 ft at 4:45AM Mar 29, 2023Observed: 2.68 ft at 5:00AM Mar 29, 2023Observed: 2.68 ft at 5:15AM Mar 29, 2023Observed: 2.68 ft at 5:30AM Mar 29, 2023Observed: 2.67 ft at 5:45AM Mar 29, 2023Observed: 2.68 ft at 6:00AM Mar 29, 2023Observed: 2.67 ft at 6:15AM Mar 29, 2023Observed: 2.67 ft at 6:30AM Mar 29, 2023Observed: 2.67 ft at 6:45AM Mar 29, 2023Observed: 2.67 ft at 7:00AM Mar 29, 2023Observed: 2.67 ft at 7:15AM Mar 29, 2023Observed: 2.67 ft at 7:30AM Mar 29, 2023Observed: 2.67 ft at 7:45AM Mar 29, 2023Observed: 2.67 ft at 8:00AM Mar 29, 2023Observed: 2.67 ft at 8:15AM Mar 29, 2023Observed: 2.68 ft at 10:30AM Mar 29, 2023Observed: 2.69 ft at 10:45AM Mar 29, 2023Observed: 2.69 ft at 11:00AM Mar 29, 2023Observed: 2.69 ft at 11:15AM Mar 29, 2023Observed: 2.69 ft at 11:30AM Mar 29, 2023Observed: 2.7 ft at 11:45AM Mar 29, 2023Observed: 2.71 ft at 12:00PM Mar 29, 2023Observed: 2.71 ft at 12:15PM Mar 29, 2023Observed: 2.71 ft at 12:30PM Mar 29, 2023Observed: 2.71 ft at 12:45PM Mar 29, 2023Observed: 2.71 ft at 1:00PM Mar 29, 2023Observed: 2.71 ft at 1:15PM Mar 29, 2023Observed: 2.7 ft at 1:30PM Mar 29, 2023Observed: 2.7 ft at 1:45PM Mar 29, 2023Observed: 2.7 ft at 2:00PM Mar 29, 2023Observed: 2.7 ft at 2:15PM Mar 29, 2023Observed: 2.7 ft at 2:30PM Mar 29, 2023Observed: 2.7 ft at 2:45PM Mar 29, 2023Observed: 2.7 ft at 3:00PM Mar 29, 2023Observed: 2.71 ft at 3:15PM Mar 29, 2023Observed: 2.71 ft at 3:30PM Mar 29, 2023Observed: 2.71 ft at 3:45PM Mar 29, 2023Observed: 2.71 ft at 4:00PM Mar 29, 2023Observed: 2.71 ft at 4:15PM Mar 29, 2023Observed: 2.71 ft at 4:30PM Mar 29, 2023Observed: 2.71 ft at 4:45PM Mar 29, 2023Observed: 2.71 ft at 5:00PM Mar 29, 2023Observed: 2.71 ft at 5:15PM Mar 29, 2023Observed: 2.71 ft at 5:30PM Mar 29, 2023Observed: 2.71 ft at 5:45PM Mar 29, 2023Observed: 2.71 ft at 6:00PM Mar 29, 2023Observed: 2.71 ft at 6:15PM Mar 29, 2023Observed: 2.7 ft at 6:30PM Mar 29, 2023Observed: 2.7 ft at 6:45PM Mar 29, 2023Observed: 2.71 ft at 7:00PM Mar 29, 2023Observed: 2.71 ft at 7:15PM Mar 29, 2023Observed: 2.71 ft at 7:30PM Mar 29, 2023Observed: 2.71 ft at 7:45PM Mar 29, 2023Observed: 2.71 ft at 8:00PM Mar 29, 2023Observed: 2.71 ft at 8:15PM Mar 29, 2023Observed: 2.71 ft at 8:30PM Mar 29, 2023Observed: 2.71 ft at 8:45PM Mar 29, 2023Observed: 2.71 ft at 9:00PM Mar 29, 2023Observed: 2.71 ft at 9:15PM Mar 29, 2023Observed: 2.71 ft at 9:30PM Mar 29, 2023Observed: 2.7 ft at 9:45PM Mar 29, 2023Observed: 2.7 ft at 10:00PM Mar 29, 2023Observed: 2.7 ft at 10:15PM Mar 29, 2023Observed: 2.7 ft at 10:30PM Mar 29, 2023Observed: 2.7 ft at 10:45PM Mar 29, 2023Observed: 2.7 ft at 11:00PM Mar 29, 2023Observed: 2.7 ft at 11:15PM Mar 29, 2023Observed: 2.7 ft at 11:30PM Mar 29, 2023Observed: 2.7 ft at 11:45PM Mar 29, 2023Observed: 2.7 ft at 12:00AM Mar 30, 2023Observed: 2.7 ft at 12:15AM Mar 30, 2023Observed: 2.7 ft at 12:30AM Mar 30, 2023Observed: 2.7 ft at 12:45AM Mar 30, 2023Observed: 2.7 ft at 1:00AM Mar 30, 2023Observed: 2.7 ft at 1:15AM Mar 30, 2023Observed: 2.7 ft at 1:30AM Mar 30, 2023Observed: 2.7 ft at 1:45AM Mar 30, 2023Observed: 2.7 ft at 2:00AM Mar 30, 2023Observed: 2.7 ft at 2:15AM Mar 30, 2023Observed: 2.7 ft at 2:30AM Mar 30, 2023Observed: 2.7 ft at 2:45AM Mar 30, 2023Observed: 2.7 ft at 3:00AM Mar 30, 2023Observed: 2.7 ft at 3:15AM Mar 30, 2023Observed: 2.7 ft at 3:30AM Mar 30, 2023Observed: 2.7 ft at 3:45AM Mar 30, 2023Observed: 2.7 ft at 4:00AM Mar 30, 2023Observed: 2.7 ft at 4:15AM Mar 30, 2023Observed: 2.7 ft at 4:30AM Mar 30, 2023Observed: 2.7 ft at 4:45AM Mar 30, 2023Observed: 2.7 ft at 5:00AM Mar 30, 2023Observed: 2.7 ft at 5:15AM Mar 30, 2023Observed: 2.7 ft at 5:30AM Mar 30, 2023Observed: 2.7 ft at 5:45AM Mar 30, 2023Observed: 2.7 ft at 6:00AM Mar 30, 2023Observed: 2.7 ft at 6:15AM Mar 30, 2023Observed: 2.7 ft at 6:30AM Mar 30, 2023Observed: 2.7 ft at 6:45AM Mar 30, 2023Observed: 2.69 ft at 7:00AM Mar 30, 2023Observed: 2.7 ft at 7:15AM Mar 30, 2023Observed: 2.7 ft at 7:30AM Mar 30, 2023Observed: 2.7 ft at 7:45AM Mar 30, 2023Observed: 2.69 ft at 8:00AM Mar 30, 2023Observed: 2.69 ft at 8:15AM Mar 30, 2023Observed: 2.69 ft at 8:30AM Mar 30, 2023Observed: 2.69 ft at 8:45AM Mar 30, 2023Observed: 2.69 ft at 9:00AM Mar 30, 2023Observed: 2.69 ft at 9:15AM Mar 30, 2023Observed: 2.69 ft at 9:30AM Mar 30, 2023Observed: 2.69 ft at 9:45AM Mar 30, 2023Observed: 2.69 ft at 10:00AM Mar 30, 2023Observed: 2.69 ft at 10:15AM Mar 30, 2023Observed: 2.69 ft at 10:30AM Mar 30, 2023Observed: 2.69 ft at 10:45AM Mar 30, 2023Observed: 2.69 ft at 11:00AM Mar 30, 2023Observed: 2.69 ft at 11:15AM Mar 30, 2023Observed: 2.69 ft at 11:30AM Mar 30, 2023Observed: 2.69 ft at 11:45AM Mar 30, 2023Observed: 2.69 ft at 12:00PM Mar 30, 2023Observed: 2.69 ft at 12:15PM Mar 30, 2023Observed: 2.69 ft at 12:30PM Mar 30, 2023Observed: 2.69 ft at 12:45PM Mar 30, 2023Observed: 2.69 ft at 1:00PM Mar 30, 2023Observed: 2.69 ft at 1:15PM Mar 30, 2023Observed: 2.69 ft at 1:30PM Mar 30, 2023Observed: 2.69 ft at 1:45PM Mar 30, 2023Observed: 2.69 ft at 2:00PM Mar 30, 2023Observed: 2.69 ft at 2:15PM Mar 30, 2023Observed: 2.69 ft at 3:15PM Mar 30, 2023Observed: 2.69 ft at 3:30PM Mar 30, 2023Observed: 2.69 ft at 3:45PM Mar 30, 2023Observed: 2.69 ft at 4:00PM Mar 30, 2023Observed: 2.69 ft at 4:15PM Mar 30, 2023Observed: 2.69 ft at 4:30PM Mar 30, 2023Observed: 2.69 ft at 4:45PM Mar 30, 2023Observed: 2.69 ft at 5:00PM Mar 30, 2023Observed: 2.69 ft at 5:15PM Mar 30, 2023Observed: 2.69 ft at 5:30PM Mar 30, 2023Observed: 2.69 ft at 5:45PM Mar 30, 2023Observed: 2.69 ft at 6:00PM Mar 30, 2023Observed: 2.69 ft at 6:15PM Mar 30, 2023Observed: 2.69 ft at 6:30PM Mar 30, 2023Observed: 2.69 ft at 6:45PM Mar 30, 2023Observed: 2.69 ft at 7:00PM Mar 30, 2023Observed: 2.7 ft at 7:15PM Mar 30, 2023Observed: 2.7 ft at 7:30PM Mar 30, 2023Observed: 2.7 ft at 7:45PM Mar 30, 2023Observed: 2.7 ft at 8:00PM Mar 30, 2023Observed: 2.7 ft at 8:15PM Mar 30, 2023Observed: 2.71 ft at 8:30PM Mar 30, 2023Observed: 2.71 ft at 8:45PM Mar 30, 2023Observed: 2.71 ft at 9:00PM Mar 30, 2023Observed: 2.71 ft at 9:15PM Mar 30, 2023Observed: 2.71 ft at 9:30PM Mar 30, 2023Observed: 2.72 ft at 9:45PM Mar 30, 2023Observed: 2.72 ft at 10:00PM Mar 30, 2023Observed: 2.72 ft at 10:15PM Mar 30, 2023Observed: 2.72 ft at 10:30PM Mar 30, 2023Observed: 2.72 ft at 10:45PM Mar 30, 2023Observed: 2.72 ft at 11:00PM Mar 30, 2023Observed: 2.72 ft at 11:15PM Mar 30, 2023Observed: 2.72 ft at 11:30PM Mar 30, 2023Observed: 2.72 ft at 11:45PM Mar 30, 2023Observed: 2.72 ft at 12:00AM Mar 31, 2023Observed: 2.72 ft at 12:15AM Mar 31, 2023Observed: 2.72 ft at 12:30AM Mar 31, 2023Observed: 2.71 ft at 12:45AM Mar 31, 2023Observed: 2.71 ft at 1:00AM Mar 31, 2023Observed: 2.71 ft at 1:15AM Mar 31, 2023Observed: 2.71 ft at 1:30AM Mar 31, 2023Observed: 2.71 ft at 1:45AM Mar 31, 2023Observed: 2.71 ft at 2:00AM Mar 31, 2023Observed: 2.71 ft at 2:15AM Mar 31, 2023Observed: 2.71 ft at 2:30AM Mar 31, 2023Observed: 2.71 ft at 2:45AM Mar 31, 2023Observed: 2.71 ft at 3:00AM Mar 31, 2023Observed: 2.71 ft at 3:15AM Mar 31, 2023Observed: 2.71 ft at 3:30AM Mar 31, 2023Observed: 2.71 ft at 3:45AM Mar 31, 2023Observed: 2.71 ft at 4:00AM Mar 31, 2023Observed: 2.71 ft at 4:15AM Mar 31, 2023Observed: 2.71 ft at 4:30AM Mar 31, 2023Observed: 2.71 ft at 4:45AM Mar 31, 2023Observed: 2.71 ft at 5:00AM Mar 31, 2023Observed: 2.71 ft at 5:15AM Mar 31, 2023Observed: 2.71 ft at 5:30AM Mar 31, 2023Observed: 2.71 ft at 5:45AM Mar 31, 2023Observed: 2.71 ft at 6:00AM Mar 31, 2023Observed: 2.71 ft at 6:15AM Mar 31, 2023Observed: 2.71 ft at 6:30AM Mar 31, 2023Observed: 2.71 ft at 6:45AM Mar 31, 2023Observed: 2.71 ft at 7:00AM Mar 31, 2023Observed: 2.71 ft at 7:15AM Mar 31, 2023Observed: 2.71 ft at 7:30AM Mar 31, 2023Observed: 2.71 ft at 7:45AM Mar 31, 2023Observed: 2.71 ft at 8:00AM Mar 31, 2023Observed: 2.71 ft at 8:15AM Mar 31, 2023Observed: 2.71 ft at 8:30AM Mar 31, 2023Observed: 2.7 ft at 8:45AM Mar 31, 2023Observed: 2.7 ft at 8:46AM Mar 31, 2023Observed: 2.7 ft at 9:00AM Mar 31, 2023Observed: 2.7 ft at 9:01AM Mar 31, 2023Observed: 2.7 ft at 9:15AM Mar 31, 2023Observed: 2.7 ft at 9:16AM Mar 31, 2023Observed: 2.7 ft at 9:30AM Mar 31, 2023Observed: 2.7 ft at 9:45AM Mar 31, 2023Observed: 2.7 ft at 10:00AM Mar 31, 2023Observed: 2.7 ft at 10:15AM Mar 31, 2023Colorado Division of Water ResourcesLNSC2(plotting HGIRG) Graph Created (10:45AM Mar 31, 2023)ObservedLatest observed value: 2.7 ft at 10:15 AM MDT 31-Mar-2023. Flood Stage is 8 ft
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About this graph
Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts for the Saint Vrain Creek at Lyons are issued as needed during times of high water, but are not routinely available.

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Downstream Gauge Downstream Gauge - at Hygiene
Flood Categories (in feet)
Major Flood Stage: 10.5
Moderate Flood Stage: 9.5
Flood Stage: 8
Action Stage: 7.5
Low Stage (in feet): -9999

Historic Crests
(1) 13.00 ft on 09/12/2013
(2) 7.53 ft on 06/01/2014
(3) 7.06 ft on 06/12/2015
(4) 6.19 ft on 06/13/2016
(5) 5.36 ft on 06/07/2021
(6) 5.24 ft on 06/18/2017
(7) 5.15 ft on 07/02/2019
(8) 4.39 ft on 05/28/2018
(9) 4.37 ft on 06/04/2020

(P): Preliminary values subject to further review.

Recent Crests
(1) 5.36 ft on 06/07/2021
(2) 4.37 ft on 06/04/2020
(3) 5.15 ft on 07/02/2019
(4) 4.39 ft on 05/28/2018
(5) 5.24 ft on 06/18/2017
(6) 6.19 ft on 06/13/2016
(7) 7.06 ft on 06/12/2015
(8) 7.53 ft on 06/01/2014
(9) 13.00 ft on 09/12/2013

(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:13
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Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
12 This is an extreme, life threatening flood. Roads crossing the creek downstream through Longmont and all highways into Lyons will likely be flooded and impassable.
11 This is a major, life threatening flood. There is extensive flooding from Lyons downstream through Longmont impacting numerous roads and structures.
10.5 Houses and businesses along the creek from Lyons downstream through Longmont flood as do roads along and crossing Saint Vrain Creek.
10 A number of roads along and crossing Saint Vrain Creek in Lyons are impacted by flooding. Water overtops driveways and parking lots near Main Street in Longmont.
9.5 Flooding affects a significant area in Lyons with a number of houses along the creek impacted. Saint Vrain Creek floods low lying areas downstream in Longmont.
9 Several houses east of 2nd Avenue in Lyons flood.
8.5 Structures flood in low lying areas next to Saint Vrain Creek in Lyons. Lowland and meadow flooding occur along the creek downstream through western Longmont.
8 The creek rises to the base of structures and yards flood east of the 2nd Avenue bridge in Lyons.
7.5 There is lowland and meadow flooding in and downstream of Lyons.
Photos
(1) Looking Upstream
(2) Looking Downstream
About This Location Collapse

Latitude: 40.217900° N, Longitude: 105.260300° W, Horizontal Datum: NAD27

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 8 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 5289.14 5297.14 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Additional Information Collapse
Observations provided by the Colorado Division of Water Resources
Resources Collapse
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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