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Hydrograph River at a Glance Download
Colgan Creek near Santa Rosa Stage (ft)Flow (cfs)Observed: 98.21 ft at 1:15PM Jan 16, 2021Observed: 98.21 ft at 1:30PM Jan 16, 2021Observed: 98.21 ft at 1:45PM Jan 16, 2021Observed: 98.21 ft at 2:00PM Jan 16, 2021Highest Observation: 98.22 ft at 2:15PM Jan 16, 2021Highest Observation: 98.22 ft at 2:30PM Jan 16, 2021Highest Observation: 98.22 ft at 2:45PM Jan 16, 2021Highest Observation: 98.22 ft at 3:00PM Jan 16, 2021Highest Observation: 98.22 ft at 3:15PM Jan 16, 2021Highest Observation: 98.22 ft at 3:30PM Jan 16, 2021Highest Observation: 98.22 ft at 3:45PM Jan 16, 2021Highest Observation: 98.22 ft at 4:00PM Jan 16, 2021Highest Observation: 98.22 ft at 4:15PM Jan 16, 2021Highest Observation: 98.22 ft at 4:30PM Jan 16, 2021Highest Observation: 98.22 ft at 4:45PM Jan 16, 2021Highest Observation: 98.22 ft at 5:00PM Jan 16, 2021Highest Observation: 98.22 ft at 5:15PM Jan 16, 2021Highest Observation: 98.22 ft at 5:30PM Jan 16, 2021Highest Observation: 98.22 ft at 5:45PM Jan 16, 2021Highest Observation: 98.22 ft at 6:00PM Jan 16, 2021Highest Observation: 98.22 ft at 6:15PM Jan 16, 2021Highest Observation: 98.22 ft at 6:30PM Jan 16, 2021Highest Observation: 98.22 ft at 6:45PM Jan 16, 2021Highest Observation: 98.22 ft at 7:00PM Jan 16, 2021Highest Observation: 98.22 ft at 7:15PM Jan 16, 2021Highest Observation: 98.22 ft at 7:30PM Jan 16, 2021Highest Observation: 98.22 ft at 7:45PM Jan 16, 2021Highest Observation: 98.22 ft at 8:00PM Jan 16, 2021Observed: 98.21 ft at 8:15PM Jan 16, 2021Observed: 98.21 ft at 8:30PM Jan 16, 2021Observed: 98.21 ft at 8:45PM Jan 16, 2021Observed: 98.21 ft at 9:00PM Jan 16, 2021Highest Observation: 98.22 ft at 9:15PM Jan 16, 2021Observed: 98.21 ft at 9:30PM Jan 16, 2021Observed: 98.21 ft at 9:45PM Jan 16, 2021Observed: 98.21 ft at 10:00PM Jan 16, 2021Observed: 98.21 ft at 10:15PM Jan 16, 2021Observed: 98.21 ft at 10:30PM Jan 16, 2021Observed: 98.21 ft at 10:45PM Jan 16, 2021Observed: 98.21 ft at 11:00PM Jan 16, 2021Observed: 98.21 ft at 11:15PM Jan 16, 2021Observed: 98.21 ft at 11:30PM Jan 16, 2021Observed: 98.21 ft at 11:45PM Jan 16, 2021Observed: 98.21 ft at 12:00AM Jan 17, 2021Observed: 98.21 ft at 12:15AM Jan 17, 2021Observed: 98.21 ft at 12:30AM Jan 17, 2021Observed: 98.21 ft at 12:45AM Jan 17, 2021Observed: 98.21 ft at 1:00AM Jan 17, 2021Observed: 98.21 ft at 1:15AM Jan 17, 2021Observed: 98.21 ft at 1:30AM Jan 17, 2021Observed: 98.21 ft at 1:45AM Jan 17, 2021Observed: 98.21 ft at 2:00AM Jan 17, 2021Observed: 98.21 ft at 2:15AM Jan 17, 2021Observed: 98.21 ft at 2:30AM Jan 17, 2021Observed: 98.21 ft at 2:45AM Jan 17, 2021Observed: 98.21 ft at 3:00AM Jan 17, 2021Observed: 98.21 ft at 3:15AM Jan 17, 2021Observed: 98.21 ft at 3:30AM Jan 17, 2021Observed: 98.21 ft at 3:45AM Jan 17, 2021Observed: 98.21 ft at 4:00AM Jan 17, 2021Observed: 98.21 ft at 4:15AM Jan 17, 2021Observed: 98.21 ft at 4:30AM Jan 17, 2021Observed: 98.21 ft at 4:45AM Jan 17, 2021Observed: 98.21 ft at 5:00AM Jan 17, 2021Observed: 98.21 ft at 5:15AM Jan 17, 2021Observed: 98.21 ft at 5:30AM Jan 17, 2021Observed: 98.21 ft at 5:45AM Jan 17, 2021Observed: 98.21 ft at 6:00AM Jan 17, 2021Observed: 98.21 ft at 6:15AM Jan 17, 2021Observed: 98.21 ft at 6:30AM Jan 17, 2021Observed: 98.21 ft at 6:45AM Jan 17, 2021Observed: 98.21 ft at 7:00AM Jan 17, 2021Observed: 98.21 ft at 7:15AM Jan 17, 2021Observed: 98.21 ft at 7:30AM Jan 17, 2021Observed: 98.21 ft at 7:45AM Jan 17, 2021Observed: 98.21 ft at 8:00AM Jan 17, 2021Observed: 98.21 ft at 8:15AM Jan 17, 2021Observed: 98.21 ft at 8:30AM Jan 17, 2021Observed: 98.2 ft at 8:45AM Jan 17, 2021Observed: 98.2 ft at 9:00AM Jan 17, 2021Observed: 98.2 ft at 9:15AM Jan 17, 2021Observed: 98.2 ft at 9:30AM Jan 17, 2021Observed: 98.2 ft at 9:45AM Jan 17, 2021Observed: 98.2 ft at 10:00AM Jan 17, 2021Observed: 98.2 ft at 10:15AM Jan 17, 2021Observed: 98.2 ft at 10:30AM Jan 17, 2021Observed: 98.2 ft at 10:45AM Jan 17, 2021Observed: 98.2 ft at 11:00AM Jan 17, 2021Observed: 98.2 ft at 11:15AM Jan 17, 2021Observed: 98.2 ft at 11:30AM Jan 17, 2021Observed: 98.2 ft at 11:45AM Jan 17, 2021Observed: 98.2 ft at 12:00PM Jan 17, 2021Observed: 98.2 ft at 12:15PM Jan 17, 2021Observed: 98.2 ft at 12:30PM Jan 17, 2021Observed: 98.2 ft at 12:45PM Jan 17, 2021Observed: 98.2 ft at 1:00PM Jan 17, 2021Observed: 98.2 ft at 1:15PM Jan 17, 2021Observed: 98.2 ft at 1:30PM Jan 17, 2021Observed: 98.2 ft at 1:45PM Jan 17, 2021Observed: 98.21 ft at 2:00PM Jan 17, 2021Observed: 98.21 ft at 2:15PM Jan 17, 2021Observed: 98.21 ft at 2:30PM Jan 17, 2021Observed: 98.21 ft at 2:45PM Jan 17, 2021Observed: 98.21 ft at 3:00PM Jan 17, 2021Observed: 98.21 ft at 3:15PM Jan 17, 2021Observed: 98.21 ft at 3:30PM Jan 17, 2021Observed: 98.21 ft at 3:45PM Jan 17, 2021Observed: 98.21 ft at 4:00PM Jan 17, 2021Observed: 98.21 ft at 4:15PM Jan 17, 2021Observed: 98.21 ft at 4:30PM Jan 17, 2021Observed: 98.21 ft at 4:45PM Jan 17, 2021Observed: 98.21 ft at 5:00PM Jan 17, 2021Observed: 98.21 ft at 5:15PM Jan 17, 2021Observed: 98.21 ft at 5:30PM Jan 17, 2021Observed: 98.21 ft at 5:45PM Jan 17, 2021Observed: 98.21 ft at 6:00PM Jan 17, 2021Observed: 98.21 ft at 6:15PM Jan 17, 2021Observed: 98.21 ft at 6:30PM Jan 17, 2021Observed: 98.21 ft at 6:45PM Jan 17, 2021Observed: 98.21 ft at 7:00PM Jan 17, 2021Observed: 98.21 ft at 7:15PM Jan 17, 2021Observed: 98.21 ft at 7:30PM Jan 17, 2021Observed: 98.21 ft at 7:45PM Jan 17, 2021Observed: 98.21 ft at 8:00PM Jan 17, 2021Observed: 98.21 ft at 8:15PM Jan 17, 2021Observed: 98.21 ft at 8:30PM Jan 17, 2021Observed: 98.21 ft at 8:45PM Jan 17, 2021Observed: 98.21 ft at 9:00PM Jan 17, 2021Observed: 98.21 ft at 9:15PM Jan 17, 2021Observed: 98.21 ft at 9:30PM Jan 17, 2021Observed: 98.21 ft at 9:45PM Jan 17, 2021Observed: 98.21 ft at 10:00PM Jan 17, 2021Observed: 98.21 ft at 10:15PM Jan 17, 2021Observed: 98.21 ft at 10:30PM Jan 17, 2021Observed: 98.21 ft at 10:45PM Jan 17, 2021Observed: 98.21 ft at 11:00PM Jan 17, 2021Observed: 98.21 ft at 11:15PM Jan 17, 2021Observed: 98.21 ft at 11:30PM Jan 17, 2021Observed: 98.21 ft at 11:45PM Jan 17, 2021Observed: 98.21 ft at 12:00AM Jan 18, 2021Observed: 98.21 ft at 12:15AM Jan 18, 2021Observed: 98.21 ft at 12:30AM Jan 18, 2021Observed: 98.21 ft at 12:45AM Jan 18, 2021Observed: 98.21 ft at 1:00AM Jan 18, 2021Observed: 98.21 ft at 1:15AM Jan 18, 2021Observed: 98.21 ft at 1:30AM Jan 18, 2021Observed: 98.21 ft at 1:45AM Jan 18, 2021Observed: 98.21 ft at 2:00AM Jan 18, 2021Observed: 98.21 ft at 2:15AM Jan 18, 2021Observed: 98.21 ft at 2:30AM Jan 18, 2021Observed: 98.21 ft at 2:45AM Jan 18, 2021Observed: 98.21 ft at 3:00AM Jan 18, 2021Observed: 98.21 ft at 3:15AM Jan 18, 2021Observed: 98.21 ft at 3:30AM Jan 18, 2021Observed: 98.21 ft at 3:45AM Jan 18, 2021Observed: 98.21 ft at 4:00AM Jan 18, 2021Observed: 98.21 ft at 4:15AM Jan 18, 2021Observed: 98.21 ft at 4:30AM Jan 18, 2021Observed: 98.21 ft at 4:45AM Jan 18, 2021Observed: 98.21 ft at 5:00AM Jan 18, 2021Observed: 98.21 ft at 5:15AM Jan 18, 2021Observed: 98.21 ft at 5:30AM Jan 18, 2021Observed: 98.21 ft at 5:45AM Jan 18, 2021Observed: 98.21 ft at 6:00AM Jan 18, 2021Observed: 98.21 ft at 6:15AM Jan 18, 2021Observed: 98.21 ft at 6:30AM Jan 18, 2021Observed: 98.21 ft at 6:45AM Jan 18, 2021Observed: 98.21 ft at 7:00AM Jan 18, 2021Observed: 98.21 ft at 7:15AM Jan 18, 2021Observed: 98.21 ft at 7:30AM Jan 18, 2021Observed: 98.21 ft at 7:45AM Jan 18, 2021Observed: 98.21 ft at 8:00AM Jan 18, 2021Observed: 98.21 ft at 8:15AM Jan 18, 2021Observed: 98.21 ft at 8:30AM Jan 18, 2021Observed: 98.21 ft at 8:45AM Jan 18, 2021Observed: 98.21 ft at 9:00AM Jan 18, 2021Observed: 98.2 ft at 9:15AM Jan 18, 2021Observed: 98.2 ft at 9:30AM Jan 18, 2021Observed: 98.2 ft at 9:45AM Jan 18, 2021Observed: 98.2 ft at 10:00AM Jan 18, 2021Observed: 98.2 ft at 10:15AM Jan 18, 2021Observed: 98.2 ft at 10:30AM Jan 18, 2021Observed: 98.2 ft at 10:45AM Jan 18, 2021Observed: 98.2 ft at 11:00AM Jan 18, 2021Observed: 98.2 ft at 11:15AM Jan 18, 2021Observed: 98.2 ft at 11:30AM Jan 18, 2021Observed: 98.2 ft at 11:45AM Jan 18, 2021Observed: 98.2 ft at 12:00PM Jan 18, 2021Observed: 98.2 ft at 12:15PM Jan 18, 2021Observed: 98.2 ft at 12:30PM Jan 18, 2021Observed: 98.2 ft at 12:45PM Jan 18, 2021Observed: 98.2 ft at 1:00PM Jan 18, 2021Observed: 98.2 ft at 1:15PM Jan 18, 2021Observed: 98.2 ft at 1:30PM Jan 18, 2021Observed: 98.2 ft at 1:45PM Jan 18, 2021Observed: 98.2 ft at 2:00PM Jan 18, 2021Observed: 98.2 ft at 2:15PM Jan 18, 2021Observed: 98.2 ft at 2:30PM Jan 18, 2021Observed: 98.2 ft at 2:45PM Jan 18, 2021Observed: 98.2 ft at 3:00PM Jan 18, 2021Observed: 98.2 ft at 3:15PM Jan 18, 2021Observed: 98.2 ft at 3:30PM Jan 18, 2021Observed: 98.2 ft at 3:45PM Jan 18, 2021Observed: 98.2 ft at 4:00PM Jan 18, 2021Observed: 98.2 ft at 4:15PM Jan 18, 2021Observed: 98.2 ft at 4:30PM Jan 18, 2021Observed: 98.2 ft at 4:45PM Jan 18, 2021Observed: 98.2 ft at 5:00PM Jan 18, 2021Observed: 98.2 ft at 5:15PM Jan 18, 2021Observed: 98.2 ft at 5:30PM Jan 18, 2021Observed: 98.2 ft at 5:45PM Jan 18, 2021Observed: 98.2 ft at 6:00PM Jan 18, 2021Observed: 98.2 ft at 6:15PM Jan 18, 2021Observed: 98.2 ft at 6:30PM Jan 18, 2021Observed: 98.2 ft at 6:45PM Jan 18, 2021Observed: 98.2 ft at 7:00PM Jan 18, 2021Observed: 98.2 ft at 7:15PM Jan 18, 2021Observed: 98.19 ft at 7:30PM Jan 18, 2021Observed: 98.19 ft at 7:45PM Jan 18, 2021Observed: 98.19 ft at 8:00PM Jan 18, 2021Observed: 98.19 ft at 8:15PM Jan 18, 2021Observed: 98.19 ft at 8:30PM Jan 18, 2021Observed: 98.19 ft at 8:45PM Jan 18, 2021Observed: 98.19 ft at 9:00PM Jan 18, 2021Observed: 98.19 ft at 9:15PM Jan 18, 2021Observed: 98.19 ft at 9:30PM Jan 18, 2021Observed: 98.19 ft at 9:45PM Jan 18, 2021Observed: 98.19 ft at 10:00PM Jan 18, 2021Observed: 98.19 ft at 10:15PM Jan 18, 2021Observed: 98.19 ft at 10:30PM Jan 18, 2021Observed: 98.19 ft at 10:45PM Jan 18, 2021Observed: 98.19 ft at 11:00PM Jan 18, 2021Observed: 98.19 ft at 11:15PM Jan 18, 2021Observed: 98.19 ft at 11:30PM Jan 18, 2021Observed: 98.19 ft at 11:45PM Jan 18, 2021Observed: 98.19 ft at 12:00AM Jan 19, 2021Observed: 98.19 ft at 12:15AM Jan 19, 2021Observed: 98.19 ft at 12:30AM Jan 19, 2021Observed: 98.19 ft at 12:45AM Jan 19, 2021Observed: 98.19 ft at 1:00AM Jan 19, 2021Observed: 98.19 ft at 1:15AM Jan 19, 2021Observed: 98.19 ft at 1:30AM Jan 19, 2021Observed: 98.19 ft at 1:45AM Jan 19, 2021Observed: 98.19 ft at 2:00AM Jan 19, 2021Observed: 98.18 ft at 2:15AM Jan 19, 2021Observed: 98.18 ft at 2:30AM Jan 19, 2021Observed: 98.18 ft at 2:45AM Jan 19, 2021Observed: 98.18 ft at 3:00AM Jan 19, 2021Observed: 98.18 ft at 3:15AM Jan 19, 2021Observed: 98.18 ft at 3:30AM Jan 19, 2021Observed: 98.18 ft at 3:45AM Jan 19, 2021Observed: 98.18 ft at 4:00AM Jan 19, 2021Observed: 98.18 ft at 4:15AM Jan 19, 2021Observed: 98.18 ft at 4:30AM Jan 19, 2021Observed: 98.18 ft at 4:45AM Jan 19, 2021Observed: 98.18 ft at 5:00AM Jan 19, 2021Observed: 98.18 ft at 5:15AM Jan 19, 2021Observed: 98.18 ft at 5:30AM Jan 19, 2021Observed: 98.18 ft at 5:45AM Jan 19, 2021Observed: 98.18 ft at 6:00AM Jan 19, 2021Observed: 98.18 ft at 6:15AM Jan 19, 2021Observed: 98.18 ft at 6:30AM Jan 19, 2021Observed: 98.18 ft at 6:45AM Jan 19, 2021Observed: 98.18 ft at 7:00AM Jan 19, 2021Observed: 98.18 ft at 7:15AM Jan 19, 2021Observed: 98.18 ft at 7:30AM Jan 19, 2021Observed: 98.18 ft at 7:45AM Jan 19, 2021Observed: 98.18 ft at 8:00AM Jan 19, 2021Observed: 98.18 ft at 8:15AM Jan 19, 2021Observed: 98.18 ft at 8:30AM Jan 19, 2021Observed: 98.18 ft at 8:45AM Jan 19, 2021Observed: 98.18 ft at 9:00AM Jan 19, 2021Observed: 98.18 ft at 9:15AM Jan 19, 2021Observed: 98.18 ft at 9:30AM Jan 19, 2021Observed: 98.18 ft at 9:45AM Jan 19, 2021Observed: 98.18 ft at 10:00AM Jan 19, 2021Observed: 98.18 ft at 10:15AM Jan 19, 2021Observed: 98.18 ft at 10:30AM Jan 19, 2021Observed: 98.18 ft at 10:45AM Jan 19, 2021Observed: 98.18 ft at 11:00AM Jan 19, 2021Observed: 98.17 ft at 11:15AM Jan 19, 2021Observed: 98.17 ft at 11:30AM Jan 19, 2021Observed: 98.17 ft at 11:45AM Jan 19, 2021Observed: 98.17 ft at 12:00PM Jan 19, 2021Observed: 98.17 ft at 12:15PM Jan 19, 2021Observed: 98.17 ft at 12:30PM Jan 19, 2021Observed: 98.18 ft at 12:45PM Jan 19, 2021Observed: 98.17 ft at 1:00PM Jan 19, 2021Observed: 98.18 ft at 1:15PM Jan 19, 2021Observed: 98.18 ft at 1:30PM Jan 19, 2021Observed: 98.18 ft at 1:45PM Jan 19, 2021Observed: 98.18 ft at 2:00PM Jan 19, 2021Observed: 98.18 ft at 2:15PM Jan 19, 2021Observed: 98.18 ft at 2:30PM Jan 19, 2021Observed: 98.18 ft at 2:45PM Jan 19, 2021Observed: 98.18 ft at 3:00PM Jan 19, 2021Observed: 98.18 ft at 3:15PM Jan 19, 2021Observed: 98.18 ft at 3:30PM Jan 19, 2021Observed: 98.18 ft at 3:45PM Jan 19, 2021Observed: 98.18 ft at 4:00PM Jan 19, 2021Observed: 98.18 ft at 4:15PM Jan 19, 2021Observed: 98.18 ft at 4:30PM Jan 19, 2021Observed: 98.18 ft at 4:45PM Jan 19, 2021Observed: 98.18 ft at 5:00PM Jan 19, 2021Observed: 98.18 ft at 5:15PM Jan 19, 2021Observed: 98.18 ft at 5:30PM Jan 19, 2021Observed: 98.18 ft at 5:45PM Jan 19, 2021Observed: 98.18 ft at 6:00PM Jan 19, 2021Observed: 98.18 ft at 6:15PM Jan 19, 2021Observed: 98.18 ft at 6:30PM Jan 19, 2021Observed: 98.18 ft at 6:45PM Jan 19, 2021Observed: 98.18 ft at 7:00PM Jan 19, 2021Observed: 98.17 ft at 7:15PM Jan 19, 2021Observed: 98.17 ft at 7:30PM Jan 19, 2021Observed: 98.17 ft at 7:45PM Jan 19, 2021Observed: 98.17 ft at 8:00PM Jan 19, 2021Observed: 98.17 ft at 8:15PM Jan 19, 2021Observed: 98.17 ft at 8:30PM Jan 19, 2021Observed: 98.17 ft at 8:45PM Jan 19, 2021Observed: 98.17 ft at 9:00PM Jan 19, 2021Observed: 98.17 ft at 9:15PM Jan 19, 2021Observed: 98.17 ft at 9:30PM Jan 19, 2021Observed: 98.17 ft at 9:45PM Jan 19, 2021Observed: 98.17 ft at 10:00PM Jan 19, 2021Observed: 98.17 ft at 10:15PM Jan 19, 2021Observed: 98.17 ft at 10:30PM Jan 19, 2021Observed: 98.17 ft at 10:45PM Jan 19, 2021Observed: 98.17 ft at 11:00PM Jan 19, 2021Observed: 98.17 ft at 11:15PM Jan 19, 2021Observed: 98.17 ft at 11:30PM Jan 19, 2021Observed: 98.17 ft at 11:45PM Jan 19, 2021Observed: 98.17 ft at 12:00AM Jan 20, 2021Observed: 98.17 ft at 12:15AM Jan 20, 2021Observed: 98.17 ft at 12:30AM Jan 20, 2021Observed: 98.17 ft at 12:45AM Jan 20, 2021Observed: 98.17 ft at 1:00AM Jan 20, 2021Observed: 98.17 ft at 1:15AM Jan 20, 2021Observed: 98.17 ft at 1:30AM Jan 20, 2021Observed: 98.17 ft at 1:45AM Jan 20, 2021Observed: 98.17 ft at 2:00AM Jan 20, 2021Observed: 98.16 ft at 2:15AM Jan 20, 2021Observed: 98.16 ft at 2:30AM Jan 20, 2021Observed: 98.16 ft at 2:45AM Jan 20, 2021Observed: 98.16 ft at 3:00AM Jan 20, 2021Observed: 98.16 ft at 3:15AM Jan 20, 2021Observed: 98.16 ft at 3:30AM Jan 20, 2021Observed: 98.16 ft at 3:45AM Jan 20, 2021Observed: 98.16 ft at 4:00AM Jan 20, 2021Observed: 98.16 ft at 4:15AM Jan 20, 2021Observed: 98.16 ft at 4:30AM Jan 20, 2021Observed: 98.16 ft at 4:45AM Jan 20, 2021Observed: 98.16 ft at 5:00AM Jan 20, 2021Observed: 98.16 ft at 5:15AM Jan 20, 2021Observed: 98.16 ft at 5:30AM Jan 20, 2021Observed: 98.16 ft at 5:45AM Jan 20, 2021Observed: 98.16 ft at 6:00AM Jan 20, 2021Observed: 98.16 ft at 6:15AM Jan 20, 2021Observed: 98.16 ft at 6:30AM Jan 20, 2021Observed: 98.16 ft at 6:45AM Jan 20, 2021Observed: 98.16 ft at 7:00AM Jan 20, 2021Observed: 98.16 ft at 7:15AM Jan 20, 2021Observed: 98.16 ft at 7:30AM Jan 20, 2021Observed: 98.16 ft at 7:45AM Jan 20, 2021Observed: 98.16 ft at 8:00AM Jan 20, 2021Observed: 98.16 ft at 8:15AM Jan 20, 2021Observed: 98.16 ft at 8:30AM Jan 20, 2021Observed: 98.15 ft at 8:45AM Jan 20, 2021Observed: 98.15 ft at 9:00AM Jan 20, 2021Observed: 98.15 ft at 9:15AM Jan 20, 2021Observed: 98.15 ft at 9:30AM Jan 20, 2021Observed: 98.15 ft at 9:45AM Jan 20, 2021Observed: 98.15 ft at 10:00AM Jan 20, 2021Observed: 98.15 ft at 10:15AM Jan 20, 2021Observed: 98.15 ft at 10:30AM Jan 20, 2021Observed: 98.15 ft at 10:45AM Jan 20, 2021Observed: 98.15 ft at 11:00AM Jan 20, 2021Observed: 98.15 ft at 11:15AM Jan 20, 2021Observed: 98.15 ft at 11:30AM Jan 20, 2021Observed: 98.15 ft at 11:45AM Jan 20, 2021Observed: 98.15 ft at 12:00PM Jan 20, 2021Observed: 98.15 ft at 12:15PM Jan 20, 2021Observed: 98.15 ft at 12:30PM Jan 20, 2021Observed: 98.15 ft at 12:45PM Jan 20, 2021Observed: 98.15 ft at 1:00PM Jan 20, 2021Observed: 98.15 ft at 1:15PM Jan 20, 2021Observed: 98.15 ft at 1:30PM Jan 20, 2021Observed: 98.15 ft at 1:45PM Jan 20, 2021Observed: 98.15 ft at 2:00PM Jan 20, 2021Observed: 98.15 ft at 2:15PM Jan 20, 2021Observed: 98.15 ft at 2:30PM Jan 20, 2021Observed: 98.15 ft at 2:45PM Jan 20, 2021Observed: 98.15 ft at 3:00PM Jan 20, 2021Observed: 98.15 ft at 3:15PM Jan 20, 2021Observed: 98.15 ft at 3:30PM Jan 20, 2021Observed: 98.15 ft at 3:45PM Jan 20, 2021Observed: 98.15 ft at 4:00PM Jan 20, 2021Observed: 98.15 ft at 4:15PM Jan 20, 2021Observed: 98.15 ft at 4:30PM Jan 20, 2021Observed: 98.15 ft at 4:45PM Jan 20, 2021Observed: 98.15 ft at 5:00PM Jan 20, 2021Observed: 98.15 ft at 5:15PM Jan 20, 2021Observed: 98.15 ft at 5:30PM Jan 20, 2021Observed: 98.15 ft at 5:45PM Jan 20, 2021Observed: 98.15 ft at 6:00PM Jan 20, 2021Observed: 98.15 ft at 6:15PM Jan 20, 2021Observed: 98.15 ft at 6:30PM Jan 20, 2021Observed: 98.15 ft at 6:45PM Jan 20, 2021Observed: 98.15 ft at 7:00PM Jan 20, 2021Observed: 98.15 ft at 7:15PM Jan 20, 2021Observed: 98.15 ft at 7:30PM Jan 20, 2021Observed: 98.14 ft at 7:45PM Jan 20, 2021Observed: 98.14 ft at 8:00PM Jan 20, 2021Observed: 98.14 ft at 8:15PM Jan 20, 2021Observed: 98.15 ft at 8:30PM Jan 20, 2021Observed: 98.15 ft at 8:45PM Jan 20, 2021Observed: 98.14 ft at 9:00PM Jan 20, 2021Observed: 98.14 ft at 9:15PM Jan 20, 2021Observed: 98.14 ft at 9:30PM Jan 20, 2021Observed: 98.14 ft at 9:45PM Jan 20, 2021Observed: 98.14 ft at 10:00PM Jan 20, 2021Observed: 98.14 ft at 10:15PM Jan 20, 2021Observed: 98.14 ft at 10:30PM Jan 20, 2021Observed: 98.14 ft at 10:45PM Jan 20, 2021Observed: 98.14 ft at 11:00PM Jan 20, 2021Observed: 98.14 ft at 11:15PM Jan 20, 2021Observed: 98.14 ft at 11:30PM Jan 20, 2021Observed: 98.14 ft at 11:45PM Jan 20, 2021Observed: 98.14 ft at 12:00AM Jan 21, 2021Observed: 98.14 ft at 12:15AM Jan 21, 2021Observed: 98.14 ft at 12:30AM Jan 21, 2021Observed: 98.14 ft at 12:45AM Jan 21, 2021Observed: 98.14 ft at 1:00AM Jan 21, 2021Observed: 98.14 ft at 1:15AM Jan 21, 2021Observed: 98.14 ft at 1:30AM Jan 21, 2021Observed: 98.14 ft at 1:45AM Jan 21, 2021Observed: 98.14 ft at 2:00AM Jan 21, 2021Observed: 98.14 ft at 2:15AM Jan 21, 2021Observed: 98.14 ft at 2:30AM Jan 21, 2021Observed: 98.13 ft at 2:45AM Jan 21, 2021Observed: 98.13 ft at 3:00AM Jan 21, 2021Observed: 98.13 ft at 3:15AM Jan 21, 2021Observed: 98.13 ft at 3:30AM Jan 21, 2021Observed: 98.13 ft at 3:45AM Jan 21, 2021Observed: 98.13 ft at 4:00AM Jan 21, 2021Observed: 98.13 ft at 4:15AM Jan 21, 2021Observed: 98.13 ft at 4:30AM Jan 21, 2021Observed: 98.13 ft at 4:45AM Jan 21, 2021Observed: 98.13 ft at 5:00AM Jan 21, 2021Observed: 98.13 ft at 5:15AM Jan 21, 2021Observed: 98.13 ft at 5:30AM Jan 21, 2021Observed: 98.13 ft at 5:45AM Jan 21, 2021Observed: 98.13 ft at 6:00AM Jan 21, 2021Observed: 98.13 ft at 6:15AM Jan 21, 2021Observed: 98.13 ft at 6:30AM Jan 21, 2021Observed: 98.13 ft at 6:45AM Jan 21, 2021Observed: 98.13 ft at 7:00AM Jan 21, 2021Observed: 98.13 ft at 7:15AM Jan 21, 2021Observed: 98.13 ft at 7:30AM Jan 21, 2021Observed: 98.13 ft at 7:45AM Jan 21, 2021Observed: 98.13 ft at 8:00AM Jan 21, 2021Observed: 98.13 ft at 8:15AM Jan 21, 2021Observed: 98.13 ft at 8:30AM Jan 21, 2021Observed: 98.13 ft at 8:45AM Jan 21, 2021Observed: 98.13 ft at 9:00AM Jan 21, 2021Observed: 98.13 ft at 9:15AM Jan 21, 2021Observed: 98.13 ft at 9:30AM Jan 21, 2021Observed: 98.13 ft at 9:45AM Jan 21, 2021Observed: 98.13 ft at 10:00AM Jan 21, 2021Observed: 98.13 ft at 10:15AM Jan 21, 2021Observed: 98.13 ft at 10:30AM Jan 21, 2021Observed: 98.13 ft at 10:45AM Jan 21, 2021Observed: 98.12 ft at 11:00AM Jan 21, 2021Observed: 98.12 ft at 11:15AM Jan 21, 2021Observed: 98.12 ft at 11:30AM Jan 21, 2021Observed: 98.12 ft at 11:45AM Jan 21, 2021Observed: 98.12 ft at 12:00PM Jan 21, 2021Observed: 98.12 ft at 12:15PM Jan 21, 2021USGS--Water Resources of the United StatesEASC1(plotting HGIRG) Graph Created (1:00PM Jan 21, 2021)ObservedLatest observed value: 98.12 ft at 12:15 PM PST 21-Jan-2021. Flood Stage is 106 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Colgan Creek near Santa Rosa. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 109
Moderate Flood Stage: 108
Flood Stage: 106
Action Stage: 104
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
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109 Major floodplain inundation in vicinity of Elsie Allen High School and possibly elsewhere along Colgan Creek near Santa Rosa. Bellevue Avenue also heavily inundated by flood waters and possibly impassable by vehicle and foot traffic. Roadway and sidewalk manhole covers may be backpressured and missing.
108 Adjacent maintenance road on north (right bank) side of channel flooded. Culvert that serves Colgan Creek beneath Burgess Drive fully submerged and likely backwatered. Channel banks overtopped and Elsie Allen ballfield begins to flood. NWS will issue a Flash Flood Warning, if not yet already issued.
106 Adjacent maintenance road on north (right bank) side of channel flooded downstream of Burgess Drive bridge. Creek water levels have reached the elevation of storm drains serving runoff on Bellevue Avenue, so evacuation of runoff from the roadway and sidewalk may be limited or halted. Resultant roadway runoff may build up, causing localized urban roadway flooding. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.
104 Monitor stage. Many adjacent storm drain outlets within the creek channel that serve surrounding floodplain and roadways in the vicinity of Elsie Allen High School are submerged and may begin to backwater. NWS may issue a Flash Flood Watch, if not yet already issued.
About This Location Collapse

Latitude: 38.402222° N, Longitude: 122.731944° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 106 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 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  

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San Francisco Bay Area Weather Forecast Office
21 Grace Hopper Ave, Stop 5
Monterey, CA 93943-5505
(831) 656-1725
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