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Hydrograph River at a Glance Download
Saint Vrain Creek at Lyons Stage (ft)Observed: 3.48 ft at 4:00PM May 15, 2024Observed: 3.49 ft at 4:15PM May 15, 2024Observed: 3.49 ft at 4:30PM May 15, 2024Observed: 3.49 ft at 4:45PM May 15, 2024Observed: 3.49 ft at 5:00PM May 15, 2024Observed: 3.49 ft at 5:15PM May 15, 2024Observed: 3.49 ft at 5:30PM May 15, 2024Observed: 3.49 ft at 5:45PM May 15, 2024Observed: 3.49 ft at 6:00PM May 15, 2024Observed: 3.5 ft at 6:15PM May 15, 2024Observed: 3.5 ft at 6:30PM May 15, 2024Observed: 3.51 ft at 6:45PM May 15, 2024Observed: 3.51 ft at 7:00PM May 15, 2024Observed: 3.5 ft at 7:15PM May 15, 2024Observed: 3.5 ft at 7:30PM May 15, 2024Observed: 3.5 ft at 7:45PM May 15, 2024Observed: 3.5 ft at 8:00PM May 15, 2024Observed: 3.5 ft at 8:15PM May 15, 2024Observed: 3.5 ft at 8:30PM May 15, 2024Observed: 3.49 ft at 8:45PM May 15, 2024Observed: 3.5 ft at 9:00PM May 15, 2024Observed: 3.5 ft at 9:02PM May 15, 2024Observed: 3.49 ft at 9:15PM May 15, 2024Observed: 3.49 ft at 9:17PM May 15, 2024Observed: 3.5 ft at 9:30PM May 15, 2024Observed: 3.5 ft at 9:32PM May 15, 2024Observed: 3.5 ft at 9:45PM May 15, 2024Observed: 3.5 ft at 10:00PM May 15, 2024Observed: 3.5 ft at 10:15PM May 15, 2024Observed: 3.5 ft at 10:30PM May 15, 2024Observed: 3.5 ft at 10:45PM May 15, 2024Observed: 3.5 ft at 11:00PM May 15, 2024Observed: 3.5 ft at 11:15PM May 15, 2024Observed: 3.5 ft at 11:30PM May 15, 2024Observed: 3.5 ft at 11:45PM May 15, 2024Observed: 3.5 ft at 12:00AM May 16, 2024Observed: 3.5 ft at 12:15AM May 16, 2024Observed: 3.5 ft at 12:30AM May 16, 2024Observed: 3.5 ft at 12:45AM May 16, 2024Observed: 3.5 ft at 1:00AM May 16, 2024Observed: 3.5 ft at 1:15AM May 16, 2024Observed: 3.5 ft at 1:30AM May 16, 2024Observed: 3.51 ft at 1:45AM May 16, 2024Observed: 3.51 ft at 2:00AM May 16, 2024Observed: 3.51 ft at 2:15AM May 16, 2024Observed: 3.51 ft at 2:30AM May 16, 2024Observed: 3.51 ft at 2:45AM May 16, 2024Observed: 3.5 ft at 3:00AM May 16, 2024Observed: 3.51 ft at 3:15AM May 16, 2024Observed: 3.52 ft at 3:30AM May 16, 2024Observed: 3.51 ft at 3:45AM May 16, 2024Observed: 3.51 ft at 4:00AM May 16, 2024Observed: 3.51 ft at 4:15AM May 16, 2024Observed: 3.51 ft at 4:30AM May 16, 2024Observed: 3.51 ft at 4:45AM May 16, 2024Observed: 3.51 ft at 5:00AM May 16, 2024Observed: 3.51 ft at 5:15AM May 16, 2024Observed: 3.52 ft at 5:30AM May 16, 2024Observed: 3.51 ft at 5:45AM May 16, 2024Observed: 3.51 ft at 6:00AM May 16, 2024Observed: 3.51 ft at 6:15AM May 16, 2024Observed: 3.51 ft at 6:30AM May 16, 2024Observed: 3.5 ft at 6:45AM May 16, 2024Observed: 3.5 ft at 7:00AM May 16, 2024Observed: 3.51 ft at 7:15AM May 16, 2024Observed: 3.51 ft at 7:30AM May 16, 2024Observed: 3.51 ft at 7:45AM May 16, 2024Observed: 3.51 ft at 8:00AM May 16, 2024Observed: 3.5 ft at 8:15AM May 16, 2024Observed: 3.51 ft at 8:30AM May 16, 2024Observed: 3.51 ft at 8:45AM May 16, 2024Observed: 3.5 ft at 9:00AM May 16, 2024Observed: 3.5 ft at 9:15AM May 16, 2024Observed: 3.5 ft at 9:16AM May 16, 2024Observed: 3.51 ft at 9:30AM May 16, 2024Observed: 3.51 ft at 9:31AM May 16, 2024Observed: 3.51 ft at 9:45AM May 16, 2024Observed: 3.51 ft at 9:46AM May 16, 2024Observed: 3.51 ft at 10:00AM May 16, 2024Observed: 3.51 ft at 10:15AM May 16, 2024Observed: 3.51 ft at 10:30AM May 16, 2024Observed: 3.51 ft at 10:45AM May 16, 2024Observed: 3.51 ft at 11:00AM May 16, 2024Observed: 3.51 ft at 11:15AM May 16, 2024Observed: 3.51 ft at 11:30AM May 16, 2024Observed: 3.51 ft at 11:45AM May 16, 2024Observed: 3.51 ft at 12:00PM May 16, 2024Observed: 3.51 ft at 12:15PM May 16, 2024Observed: 3.5 ft at 12:30PM May 16, 2024Observed: 3.51 ft at 12:45PM May 16, 2024Observed: 3.5 ft at 1:00PM May 16, 2024Observed: 3.51 ft at 1:15PM May 16, 2024Observed: 3.5 ft at 1:30PM May 16, 2024Observed: 3.5 ft at 1:45PM May 16, 2024Observed: 3.5 ft at 2:00PM May 16, 2024Observed: 3.5 ft at 2:15PM May 16, 2024Observed: 3.49 ft at 2:30PM May 16, 2024Observed: 3.49 ft at 2:45PM May 16, 2024Observed: 3.49 ft at 3:00PM May 16, 2024Observed: 3.49 ft at 3:15PM May 16, 2024Observed: 3.49 ft at 3:30PM May 16, 2024Observed: 3.49 ft at 3:45PM May 16, 2024Observed: 3.5 ft at 4:00PM May 16, 2024Observed: 3.5 ft at 4:15PM May 16, 2024Observed: 3.49 ft at 4:30PM May 16, 2024Observed: 3.49 ft at 4:45PM May 16, 2024Observed: 3.49 ft at 5:00PM May 16, 2024Observed: 3.49 ft at 5:15PM May 16, 2024Observed: 3.49 ft at 5:30PM May 16, 2024Observed: 3.48 ft at 5:45PM May 16, 2024Observed: 3.49 ft at 6:00PM May 16, 2024Observed: 3.49 ft at 6:15PM May 16, 2024Observed: 3.49 ft at 6:30PM May 16, 2024Observed: 3.49 ft at 6:45PM May 16, 2024Observed: 3.49 ft at 7:00PM May 16, 2024Observed: 3.49 ft at 7:15PM May 16, 2024Observed: 3.5 ft at 7:30PM May 16, 2024Observed: 3.5 ft at 7:45PM May 16, 2024Observed: 3.49 ft at 8:00PM May 16, 2024Observed: 3.49 ft at 8:15PM May 16, 2024Observed: 3.49 ft at 8:30PM May 16, 2024Observed: 3.5 ft at 8:45PM May 16, 2024Observed: 3.51 ft at 9:00PM May 16, 2024Observed: 3.51 ft at 9:15PM May 16, 2024Observed: 3.51 ft at 9:30PM May 16, 2024Observed: 3.51 ft at 9:31PM May 16, 2024Observed: 3.52 ft at 9:45PM May 16, 2024Observed: 3.52 ft at 9:46PM May 16, 2024Observed: 3.52 ft at 10:00PM May 16, 2024Observed: 3.53 ft at 10:15PM May 16, 2024Observed: 3.53 ft at 10:30PM May 16, 2024Observed: 3.53 ft at 10:45PM May 16, 2024Observed: 3.53 ft at 11:00PM May 16, 2024Observed: 3.53 ft at 11:15PM May 16, 2024Observed: 3.53 ft at 11:30PM May 16, 2024Observed: 3.54 ft at 11:45PM May 16, 2024Observed: 3.54 ft at 12:00AM May 17, 2024Observed: 3.53 ft at 12:15AM May 17, 2024Observed: 3.54 ft at 12:30AM May 17, 2024Observed: 3.54 ft at 12:45AM May 17, 2024Observed: 3.54 ft at 1:00AM May 17, 2024Observed: 3.54 ft at 1:15AM May 17, 2024Observed: 3.54 ft at 1:30AM May 17, 2024Observed: 3.54 ft at 1:45AM May 17, 2024Observed: 3.54 ft at 2:00AM May 17, 2024Observed: 3.55 ft at 2:15AM May 17, 2024Observed: 3.55 ft at 2:30AM May 17, 2024Observed: 3.55 ft at 2:45AM May 17, 2024Observed: 3.55 ft at 3:00AM May 17, 2024Observed: 3.56 ft at 3:15AM May 17, 2024Observed: 3.55 ft at 3:30AM May 17, 2024Observed: 3.55 ft at 3:45AM May 17, 2024Observed: 3.56 ft at 4:00AM May 17, 2024Observed: 3.55 ft at 4:15AM May 17, 2024Observed: 3.55 ft at 4:30AM May 17, 2024Observed: 3.55 ft at 4:45AM May 17, 2024Observed: 3.55 ft at 5:00AM May 17, 2024Observed: 3.55 ft at 5:15AM May 17, 2024Observed: 3.55 ft at 5:30AM May 17, 2024Observed: 3.55 ft at 5:45AM May 17, 2024Observed: 3.55 ft at 6:00AM May 17, 2024Observed: 3.55 ft at 6:15AM May 17, 2024Observed: 3.55 ft at 6:30AM May 17, 2024Observed: 3.54 ft at 6:45AM May 17, 2024Observed: 3.54 ft at 7:00AM May 17, 2024Observed: 3.54 ft at 7:15AM May 17, 2024Observed: 3.54 ft at 7:30AM May 17, 2024Observed: 3.54 ft at 7:45AM May 17, 2024Observed: 3.54 ft at 8:00AM May 17, 2024Observed: 3.54 ft at 8:15AM May 17, 2024Observed: 3.55 ft at 8:30AM May 17, 2024Observed: 3.54 ft at 8:45AM May 17, 2024Observed: 3.54 ft at 9:00AM May 17, 2024Observed: 3.54 ft at 9:15AM May 17, 2024Observed: 3.54 ft at 9:17AM May 17, 2024Observed: 3.55 ft at 9:30AM May 17, 2024Observed: 3.55 ft at 9:32AM May 17, 2024Observed: 3.55 ft at 9:45AM May 17, 2024Observed: 3.55 ft at 9:47AM May 17, 2024Observed: 3.54 ft at 10:00AM May 17, 2024Observed: 3.55 ft at 10:15AM May 17, 2024Observed: 3.55 ft at 10:30AM May 17, 2024Observed: 3.55 ft at 10:45AM May 17, 2024Observed: 3.56 ft at 11:00AM May 17, 2024Observed: 3.55 ft at 11:15AM May 17, 2024Observed: 3.55 ft at 11:30AM May 17, 2024Observed: 3.55 ft at 11:45AM May 17, 2024Observed: 3.55 ft at 12:00PM May 17, 2024Observed: 3.55 ft at 12:15PM May 17, 2024Observed: 3.55 ft at 12:30PM May 17, 2024Observed: 3.56 ft at 12:45PM May 17, 2024Observed: 3.54 ft at 1:00PM May 17, 2024Observed: 3.55 ft at 1:15PM May 17, 2024Observed: 3.54 ft at 1:30PM May 17, 2024Observed: 3.54 ft at 1:45PM May 17, 2024Observed: 3.54 ft at 2:00PM May 17, 2024Observed: 3.54 ft at 2:15PM May 17, 2024Observed: 3.54 ft at 2:30PM May 17, 2024Observed: 3.54 ft at 2:45PM May 17, 2024Observed: 3.54 ft at 3:00PM May 17, 2024Observed: 3.54 ft at 3:15PM May 17, 2024Observed: 3.54 ft at 3:30PM May 17, 2024Observed: 3.54 ft at 3:45PM May 17, 2024Observed: 3.54 ft at 4:00PM May 17, 2024Observed: 3.54 ft at 4:15PM May 17, 2024Observed: 3.54 ft at 4:30PM May 17, 2024Observed: 3.54 ft at 4:45PM May 17, 2024Observed: 3.54 ft at 5:00PM May 17, 2024Observed: 3.53 ft at 5:15PM May 17, 2024Observed: 3.54 ft at 5:30PM May 17, 2024Observed: 3.54 ft at 5:45PM May 17, 2024Observed: 3.54 ft at 6:00PM May 17, 2024Observed: 3.54 ft at 6:15PM May 17, 2024Observed: 3.55 ft at 6:30PM May 17, 2024Observed: 3.55 ft at 6:45PM May 17, 2024Observed: 3.55 ft at 7:00PM May 17, 2024Observed: 3.55 ft at 7:15PM May 17, 2024Observed: 3.55 ft at 7:30PM May 17, 2024Observed: 3.55 ft at 7:45PM May 17, 2024Observed: 3.56 ft at 8:00PM May 17, 2024Observed: 3.57 ft at 8:15PM May 17, 2024Observed: 3.56 ft at 8:30PM May 17, 2024Observed: 3.57 ft at 8:45PM May 17, 2024Observed: 3.58 ft at 9:00PM May 17, 2024Observed: 3.58 ft at 9:15PM May 17, 2024Observed: 3.58 ft at 9:16PM May 17, 2024Observed: 3.58 ft at 9:30PM May 17, 2024Observed: 3.58 ft at 9:31PM May 17, 2024Observed: 3.59 ft at 9:45PM May 17, 2024Observed: 3.59 ft at 9:46PM May 17, 2024Observed: 3.59 ft at 10:00PM May 17, 2024Observed: 3.6 ft at 10:15PM May 17, 2024Observed: 3.61 ft at 10:30PM May 17, 2024Observed: 3.6 ft at 10:45PM May 17, 2024Observed: 3.61 ft at 11:00PM May 17, 2024Observed: 3.62 ft at 11:15PM May 17, 2024Observed: 3.62 ft at 11:30PM May 17, 2024Observed: 3.63 ft at 11:45PM May 17, 2024Observed: 3.63 ft at 12:00AM May 18, 2024Observed: 3.63 ft at 12:15AM May 18, 2024Observed: 3.63 ft at 12:30AM May 18, 2024Observed: 3.64 ft at 12:45AM May 18, 2024Observed: 3.64 ft at 1:00AM May 18, 2024Observed: 3.65 ft at 1:15AM May 18, 2024Observed: 3.65 ft at 1:30AM May 18, 2024Observed: 3.66 ft at 1:45AM May 18, 2024Observed: 3.66 ft at 2:00AM May 18, 2024Observed: 3.66 ft at 2:15AM May 18, 2024Observed: 3.66 ft at 2:30AM May 18, 2024Observed: 3.66 ft at 2:45AM May 18, 2024Observed: 3.67 ft at 3:00AM May 18, 2024Observed: 3.66 ft at 3:15AM May 18, 2024Observed: 3.66 ft at 3:30AM May 18, 2024Observed: 3.66 ft at 3:45AM May 18, 2024Observed: 3.66 ft at 4:00AM May 18, 2024Observed: 3.66 ft at 4:15AM May 18, 2024Observed: 3.66 ft at 4:30AM May 18, 2024Observed: 3.67 ft at 4:45AM May 18, 2024Observed: 3.66 ft at 5:00AM May 18, 2024Observed: 3.67 ft at 5:15AM May 18, 2024Observed: 3.66 ft at 5:30AM May 18, 2024Observed: 3.67 ft at 5:45AM May 18, 2024Observed: 3.67 ft at 6:00AM May 18, 2024Observed: 3.67 ft at 6:15AM May 18, 2024Observed: 3.66 ft at 6:30AM May 18, 2024Observed: 3.65 ft at 6:45AM May 18, 2024Observed: 3.65 ft at 7:00AM May 18, 2024Observed: 3.66 ft at 7:15AM May 18, 2024Observed: 3.66 ft at 7:30AM May 18, 2024Observed: 3.65 ft at 7:45AM May 18, 2024Observed: 3.65 ft at 8:00AM May 18, 2024Observed: 3.65 ft at 8:15AM May 18, 2024Observed: 3.66 ft at 8:30AM May 18, 2024Observed: 3.65 ft at 8:45AM May 18, 2024Observed: 3.65 ft at 9:00AM May 18, 2024Observed: 3.64 ft at 9:15AM May 18, 2024Observed: 3.64 ft at 9:16AM May 18, 2024Observed: 3.65 ft at 9:30AM May 18, 2024Observed: 3.65 ft at 9:31AM May 18, 2024Observed: 3.64 ft at 9:45AM May 18, 2024Observed: 3.64 ft at 9:46AM May 18, 2024Observed: 3.64 ft at 10:00AM May 18, 2024Observed: 3.64 ft at 10:15AM May 18, 2024Observed: 3.64 ft at 10:30AM May 18, 2024Observed: 3.63 ft at 10:45AM May 18, 2024Observed: 3.63 ft at 11:00AM May 18, 2024Observed: 3.63 ft at 11:15AM May 18, 2024Observed: 3.63 ft at 11:30AM May 18, 2024Observed: 3.62 ft at 11:45AM May 18, 2024Observed: 3.63 ft at 12:00PM May 18, 2024Observed: 3.63 ft at 12:15PM May 18, 2024Observed: 3.62 ft at 12:30PM May 18, 2024Observed: 3.62 ft at 12:45PM May 18, 2024Observed: 3.61 ft at 1:00PM May 18, 2024Observed: 3.62 ft at 1:15PM May 18, 2024Observed: 3.61 ft at 1:30PM May 18, 2024Observed: 3.6 ft at 1:45PM May 18, 2024Observed: 3.62 ft at 2:00PM May 18, 2024Observed: 3.61 ft at 2:15PM May 18, 2024Observed: 3.62 ft at 2:30PM May 18, 2024Observed: 3.62 ft at 2:45PM May 18, 2024Observed: 3.62 ft at 3:00PM May 18, 2024Observed: 3.61 ft at 3:15PM May 18, 2024Observed: 3.61 ft at 3:30PM May 18, 2024Observed: 3.61 ft at 3:45PM May 18, 2024Observed: 3.62 ft at 4:00PM May 18, 2024Observed: 3.61 ft at 4:15PM May 18, 2024Observed: 3.61 ft at 4:30PM May 18, 2024Observed: 3.61 ft at 4:45PM May 18, 2024Observed: 3.61 ft at 5:00PM May 18, 2024Observed: 3.61 ft at 5:15PM May 18, 2024Observed: 3.63 ft at 5:30PM May 18, 2024Observed: 3.62 ft at 5:45PM May 18, 2024Observed: 3.62 ft at 6:00PM May 18, 2024Observed: 3.62 ft at 6:15PM May 18, 2024Observed: 3.62 ft at 6:30PM May 18, 2024Observed: 3.62 ft at 6:45PM May 18, 2024Observed: 3.61 ft at 7:00PM May 18, 2024Observed: 3.61 ft at 7:15PM May 18, 2024Observed: 3.61 ft at 7:30PM May 18, 2024Observed: 3.62 ft at 7:45PM May 18, 2024Observed: 3.62 ft at 8:00PM May 18, 2024Observed: 3.62 ft at 8:15PM May 18, 2024Observed: 3.63 ft at 8:30PM May 18, 2024Observed: 3.63 ft at 8:45PM May 18, 2024Observed: 3.64 ft at 9:00PM May 18, 2024Observed: 3.63 ft at 9:15PM May 18, 2024Observed: 3.63 ft at 9:17PM May 18, 2024Observed: 3.64 ft at 9:30PM May 18, 2024Observed: 3.64 ft at 9:32PM May 18, 2024Observed: 3.65 ft at 9:45PM May 18, 2024Observed: 3.65 ft at 9:47PM May 18, 2024Observed: 3.65 ft at 10:00PM May 18, 2024Observed: 3.66 ft at 10:15PM May 18, 2024Observed: 3.66 ft at 10:30PM May 18, 2024Observed: 3.67 ft at 10:45PM May 18, 2024Observed: 3.67 ft at 11:00PM May 18, 2024Observed: 3.67 ft at 11:15PM May 18, 2024Observed: 3.69 ft at 11:30PM May 18, 2024Observed: 3.68 ft at 11:45PM May 18, 2024Observed: 3.68 ft at 12:00AM May 19, 2024Observed: 3.69 ft at 12:15AM May 19, 2024Observed: 3.7 ft at 12:30AM May 19, 2024Observed: 3.69 ft at 12:45AM May 19, 2024Observed: 3.7 ft at 1:00AM May 19, 2024Observed: 3.69 ft at 1:15AM May 19, 2024Observed: 3.7 ft at 1:30AM May 19, 2024Observed: 3.71 ft at 1:45AM May 19, 2024Observed: 3.7 ft at 2:00AM May 19, 2024Observed: 3.7 ft at 2:15AM May 19, 2024Observed: 3.71 ft at 2:30AM May 19, 2024Observed: 3.71 ft at 2:45AM May 19, 2024Observed: 3.7 ft at 3:00AM May 19, 2024Observed: 3.71 ft at 3:15AM May 19, 2024Observed: 3.72 ft at 3:30AM May 19, 2024Observed: 3.71 ft at 3:45AM May 19, 2024Observed: 3.71 ft at 4:00AM May 19, 2024Observed: 3.72 ft at 4:15AM May 19, 2024Observed: 3.72 ft at 4:30AM May 19, 2024Observed: 3.71 ft at 4:45AM May 19, 2024Observed: 3.71 ft at 5:00AM May 19, 2024Observed: 3.71 ft at 5:15AM May 19, 2024Observed: 3.72 ft at 5:30AM May 19, 2024Observed: 3.72 ft at 5:45AM May 19, 2024Observed: 3.72 ft at 6:00AM May 19, 2024Observed: 3.71 ft at 6:15AM May 19, 2024Observed: 3.71 ft at 6:30AM May 19, 2024Observed: 3.71 ft at 6:45AM May 19, 2024Observed: 3.72 ft at 7:00AM May 19, 2024Observed: 3.71 ft at 7:15AM May 19, 2024Observed: 3.7 ft at 7:30AM May 19, 2024Observed: 3.7 ft at 7:45AM May 19, 2024Observed: 3.71 ft at 8:00AM May 19, 2024Observed: 3.71 ft at 8:15AM May 19, 2024Observed: 3.71 ft at 8:30AM May 19, 2024Observed: 3.7 ft at 8:45AM May 19, 2024Observed: 3.71 ft at 9:00AM May 19, 2024Observed: 3.7 ft at 9:15AM May 19, 2024Observed: 3.7 ft at 9:16AM May 19, 2024Observed: 3.69 ft at 9:30AM May 19, 2024Observed: 3.69 ft at 9:31AM May 19, 2024Observed: 3.7 ft at 9:45AM May 19, 2024Observed: 3.7 ft at 9:46AM May 19, 2024Observed: 3.71 ft at 10:00AM May 19, 2024Observed: 3.7 ft at 10:15AM May 19, 2024Observed: 3.69 ft at 10:30AM May 19, 2024Observed: 3.69 ft at 10:45AM May 19, 2024Observed: 3.69 ft at 11:00AM May 19, 2024Observed: 3.68 ft at 11:15AM May 19, 2024Observed: 3.69 ft at 11:30AM May 19, 2024Observed: 3.69 ft at 11:45AM May 19, 2024Observed: 3.68 ft at 12:00PM May 19, 2024Observed: 3.68 ft at 12:15PM May 19, 2024Observed: 3.67 ft at 12:30PM May 19, 2024Observed: 3.68 ft at 12:45PM May 19, 2024Observed: 3.67 ft at 1:00PM May 19, 2024Observed: 3.68 ft at 1:15PM May 19, 2024Observed: 3.67 ft at 1:30PM May 19, 2024Observed: 3.67 ft at 1:45PM May 19, 2024Observed: 3.69 ft at 2:00PM May 19, 2024Observed: 3.72 ft at 2:15PM May 19, 2024Observed: 3.74 ft at 2:30PM May 19, 2024Observed: 3.74 ft at 2:45PM May 19, 2024Observed: 3.74 ft at 3:00PM May 19, 2024Observed: 3.74 ft at 3:15PM May 19, 2024Observed: 3.73 ft at 3:30PM May 19, 2024Observed: 3.74 ft at 3:45PM May 19, 2024Observed: 3.74 ft at 4:00PM May 19, 2024Observed: 3.74 ft at 4:15PM May 19, 2024Observed: 3.74 ft at 4:30PM May 19, 2024Observed: 3.73 ft at 4:45PM May 19, 2024Observed: 3.73 ft at 5:00PM May 19, 2024Observed: 3.73 ft at 5:15PM May 19, 2024Observed: 3.73 ft at 5:30PM May 19, 2024Observed: 3.73 ft at 5:45PM May 19, 2024Observed: 3.73 ft at 6:00PM May 19, 2024Observed: 3.72 ft at 6:15PM May 19, 2024Observed: 3.74 ft at 6:30PM May 19, 2024Observed: 3.74 ft at 6:45PM May 19, 2024Observed: 3.74 ft at 7:00PM May 19, 2024Observed: 3.74 ft at 7:15PM May 19, 2024Observed: 3.74 ft at 7:30PM May 19, 2024Observed: 3.74 ft at 7:45PM May 19, 2024Observed: 3.74 ft at 8:00PM May 19, 2024Observed: 3.74 ft at 8:15PM May 19, 2024Observed: 3.74 ft at 8:30PM May 19, 2024Observed: 3.75 ft at 8:45PM May 19, 2024Observed: 3.76 ft at 9:00PM May 19, 2024Observed: 3.76 ft at 9:15PM May 19, 2024Observed: 3.76 ft at 9:17PM May 19, 2024Observed: 3.76 ft at 9:30PM May 19, 2024Observed: 3.76 ft at 9:32PM May 19, 2024Observed: 3.76 ft at 9:45PM May 19, 2024Observed: 3.76 ft at 9:47PM May 19, 2024Observed: 3.77 ft at 10:00PM May 19, 2024Observed: 3.77 ft at 10:15PM May 19, 2024Observed: 3.77 ft at 10:30PM May 19, 2024Observed: 3.77 ft at 10:45PM May 19, 2024Observed: 3.78 ft at 11:00PM May 19, 2024Observed: 3.79 ft at 11:15PM May 19, 2024Observed: 3.78 ft at 11:30PM May 19, 2024Observed: 3.78 ft at 11:45PM May 19, 2024Observed: 3.79 ft at 12:00AM May 20, 2024Observed: 3.8 ft at 12:15AM May 20, 2024Observed: 3.8 ft at 12:30AM May 20, 2024Observed: 3.8 ft at 12:45AM May 20, 2024Observed: 3.8 ft at 1:00AM May 20, 2024Observed: 3.8 ft at 1:15AM May 20, 2024Observed: 3.81 ft at 1:30AM May 20, 2024Observed: 3.81 ft at 1:45AM May 20, 2024Observed: 3.8 ft at 2:00AM May 20, 2024Observed: 3.81 ft at 2:15AM May 20, 2024Observed: 3.81 ft at 2:30AM May 20, 2024Observed: 3.81 ft at 2:45AM May 20, 2024Observed: 3.8 ft at 3:00AM May 20, 2024Observed: 3.81 ft at 3:15AM May 20, 2024Observed: 3.8 ft at 3:30AM May 20, 2024Observed: 3.81 ft at 3:45AM May 20, 2024Observed: 3.81 ft at 4:00AM May 20, 2024Observed: 3.81 ft at 4:15AM May 20, 2024Highest Observation: 3.82 ft at 4:30AM May 20, 2024Observed: 3.81 ft at 4:45AM May 20, 2024Observed: 3.81 ft at 5:00AM May 20, 2024Observed: 3.81 ft at 5:15AM May 20, 2024Observed: 3.81 ft at 5:30AM May 20, 2024Observed: 3.81 ft at 5:45AM May 20, 2024Highest Observation: 3.82 ft at 6:00AM May 20, 2024Observed: 3.81 ft at 6:15AM May 20, 2024Observed: 3.81 ft at 6:30AM May 20, 2024Observed: 3.8 ft at 6:45AM May 20, 2024Observed: 3.81 ft at 7:00AM May 20, 2024Observed: 3.8 ft at 7:15AM May 20, 2024Observed: 3.81 ft at 7:30AM May 20, 2024Observed: 3.8 ft at 7:45AM May 20, 2024Observed: 3.81 ft at 8:00AM May 20, 2024Observed: 3.8 ft at 8:15AM May 20, 2024Observed: 3.8 ft at 8:30AM May 20, 2024Observed: 3.8 ft at 8:45AM May 20, 2024Observed: 3.8 ft at 9:00AM May 20, 2024Observed: 3.81 ft at 9:15AM May 20, 2024Observed: 3.81 ft at 9:16AM May 20, 2024Observed: 3.8 ft at 9:30AM May 20, 2024Observed: 3.8 ft at 9:31AM May 20, 2024Observed: 3.8 ft at 9:45AM May 20, 2024Observed: 3.8 ft at 9:46AM May 20, 2024Observed: 3.8 ft at 10:00AM May 20, 2024Observed: 3.8 ft at 10:15AM May 20, 2024Observed: 3.8 ft at 10:30AM May 20, 2024Observed: 3.8 ft at 10:45AM May 20, 2024Observed: 3.8 ft at 11:00AM May 20, 2024Observed: 3.79 ft at 11:15AM May 20, 2024Observed: 3.8 ft at 11:30AM May 20, 2024Observed: 3.79 ft at 11:45AM May 20, 2024Observed: 3.8 ft at 12:00PM May 20, 2024Observed: 3.79 ft at 12:15PM May 20, 2024Observed: 3.8 ft at 12:30PM May 20, 2024Observed: 3.8 ft at 12:45PM May 20, 2024Observed: 3.79 ft at 1:00PM May 20, 2024Observed: 3.8 ft at 1:15PM May 20, 2024Observed: 3.79 ft at 1:30PM May 20, 2024Observed: 3.78 ft at 1:45PM May 20, 2024Observed: 3.79 ft at 2:00PM May 20, 2024Observed: 3.79 ft at 2:15PM May 20, 2024Observed: 3.79 ft at 2:30PM May 20, 2024Observed: 3.79 ft at 2:45PM May 20, 2024Observed: 3.78 ft at 3:00PM May 20, 2024Observed: 3.78 ft at 3:15PM May 20, 2024Colorado Division of Water ResourcesLNSC2(plotting HGIRG) Graph Created (3:45PM May 20, 2024)ObservedLatest observed value: 3.78 ft at 3:15 PM MDT 20-May-2024. 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: 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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