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Hydrograph River at a Glance Download
San Lorenzo River (CA) at Big Trees Stage (ft)Flow (kcfs)Highest Observation: 5.86 ft at 11:15AM Apr 14, 2024Observed: 5.85 ft at 11:30AM Apr 14, 2024Observed: 5.83 ft at 11:45AM Apr 14, 2024Observed: 5.83 ft at 12:00PM Apr 14, 2024Observed: 5.81 ft at 12:15PM Apr 14, 2024Observed: 5.79 ft at 12:30PM Apr 14, 2024Observed: 5.78 ft at 12:45PM Apr 14, 2024Observed: 5.77 ft at 1:00PM Apr 14, 2024Observed: 5.74 ft at 1:15PM Apr 14, 2024Observed: 5.74 ft at 1:30PM Apr 14, 2024Observed: 5.72 ft at 1:45PM Apr 14, 2024Observed: 5.7 ft at 2:00PM Apr 14, 2024Observed: 5.7 ft at 2:15PM Apr 14, 2024Observed: 5.68 ft at 2:30PM Apr 14, 2024Observed: 5.66 ft at 2:45PM Apr 14, 2024Observed: 5.66 ft at 3:00PM Apr 14, 2024Observed: 5.65 ft at 3:15PM Apr 14, 2024Observed: 5.63 ft at 3:30PM Apr 14, 2024Observed: 5.63 ft at 3:45PM Apr 14, 2024Observed: 5.62 ft at 4:00PM Apr 14, 2024Observed: 5.6 ft at 4:15PM Apr 14, 2024Observed: 5.6 ft at 4:30PM Apr 14, 2024Observed: 5.59 ft at 4:45PM Apr 14, 2024Observed: 5.58 ft at 5:00PM Apr 14, 2024Observed: 5.57 ft at 5:15PM Apr 14, 2024Observed: 5.56 ft at 5:30PM Apr 14, 2024Observed: 5.55 ft at 5:45PM Apr 14, 2024Observed: 5.54 ft at 6:00PM Apr 14, 2024Observed: 5.54 ft at 6:15PM Apr 14, 2024Observed: 5.53 ft at 6:30PM Apr 14, 2024Observed: 5.52 ft at 6:45PM Apr 14, 2024Observed: 5.51 ft at 7:00PM Apr 14, 2024Observed: 5.51 ft at 7:15PM Apr 14, 2024Observed: 5.5 ft at 7:30PM Apr 14, 2024Observed: 5.5 ft at 7:45PM Apr 14, 2024Observed: 5.48 ft at 8:00PM Apr 14, 2024Observed: 5.48 ft at 8:15PM Apr 14, 2024Observed: 5.48 ft at 8:30PM Apr 14, 2024Observed: 5.46 ft at 8:45PM Apr 14, 2024Observed: 5.46 ft at 9:00PM Apr 14, 2024Observed: 5.45 ft at 9:15PM Apr 14, 2024Observed: 5.45 ft at 9:30PM Apr 14, 2024Observed: 5.4 ft at 11:30PM Apr 14, 2024Observed: 5.4 ft at 11:45PM Apr 14, 2024Observed: 5.39 ft at 12:00AM Apr 15, 2024Observed: 5.39 ft at 12:15AM Apr 15, 2024Observed: 5.38 ft at 12:30AM Apr 15, 2024Observed: 5.37 ft at 12:45AM Apr 15, 2024Observed: 5.37 ft at 1:00AM Apr 15, 2024Observed: 5.37 ft at 1:15AM Apr 15, 2024Observed: 5.37 ft at 1:30AM Apr 15, 2024Observed: 5.36 ft at 1:45AM Apr 15, 2024Observed: 5.36 ft at 2:00AM Apr 15, 2024Observed: 5.35 ft at 2:15AM Apr 15, 2024Observed: 5.35 ft at 2:30AM Apr 15, 2024Observed: 5.35 ft at 2:45AM Apr 15, 2024Observed: 5.34 ft at 3:00AM Apr 15, 2024Observed: 5.34 ft at 3:15AM Apr 15, 2024Observed: 5.33 ft at 3:30AM Apr 15, 2024Observed: 5.33 ft at 3:45AM Apr 15, 2024Observed: 5.32 ft at 4:00AM Apr 15, 2024Observed: 5.32 ft at 4:15AM Apr 15, 2024Observed: 5.32 ft at 4:30AM Apr 15, 2024Observed: 5.31 ft at 4:45AM Apr 15, 2024Observed: 5.32 ft at 5:00AM Apr 15, 2024Observed: 5.32 ft at 5:15AM Apr 15, 2024Observed: 5.31 ft at 5:30AM Apr 15, 2024Observed: 5.3 ft at 5:45AM Apr 15, 2024Observed: 5.31 ft at 6:00AM Apr 15, 2024Observed: 5.31 ft at 6:15AM Apr 15, 2024Observed: 5.3 ft at 6:30AM Apr 15, 2024Observed: 5.29 ft at 6:45AM Apr 15, 2024Observed: 5.3 ft at 7:00AM Apr 15, 2024Observed: 5.3 ft at 7:15AM Apr 15, 2024Observed: 5.29 ft at 7:30AM Apr 15, 2024Observed: 5.29 ft at 7:45AM Apr 15, 2024Observed: 5.29 ft at 8:00AM Apr 15, 2024Observed: 5.28 ft at 8:15AM Apr 15, 2024Observed: 5.28 ft at 8:30AM Apr 15, 2024Observed: 5.28 ft at 8:45AM Apr 15, 2024Observed: 5.28 ft at 9:00AM Apr 15, 2024Observed: 5.28 ft at 9:15AM Apr 15, 2024Observed: 5.28 ft at 9:30AM Apr 15, 2024Observed: 5.28 ft at 9:45AM Apr 15, 2024Observed: 5.27 ft at 10:00AM Apr 15, 2024Observed: 5.28 ft at 10:15AM Apr 15, 2024Observed: 5.27 ft at 10:30AM Apr 15, 2024Observed: 5.27 ft at 10:45AM Apr 15, 2024Observed: 5.27 ft at 11:00AM Apr 15, 2024Observed: 5.25 ft at 11:15AM Apr 15, 2024Observed: 5.26 ft at 11:30AM Apr 15, 2024Observed: 5.24 ft at 11:45AM Apr 15, 2024Observed: 5.26 ft at 12:00PM Apr 15, 2024Observed: 5.26 ft at 12:15PM Apr 15, 2024Observed: 5.26 ft at 12:30PM Apr 15, 2024Observed: 5.26 ft at 12:45PM Apr 15, 2024Observed: 5.25 ft at 1:00PM Apr 15, 2024Observed: 5.24 ft at 1:15PM Apr 15, 2024Observed: 5.25 ft at 1:30PM Apr 15, 2024Observed: 5.25 ft at 1:45PM Apr 15, 2024Observed: 5.25 ft at 2:00PM Apr 15, 2024Observed: 5.25 ft at 2:15PM Apr 15, 2024Observed: 5.24 ft at 2:30PM Apr 15, 2024Observed: 5.24 ft at 2:45PM Apr 15, 2024Observed: 5.24 ft at 3:00PM Apr 15, 2024Observed: 5.24 ft at 3:15PM Apr 15, 2024Observed: 5.24 ft at 3:30PM Apr 15, 2024Observed: 5.24 ft at 3:45PM Apr 15, 2024Observed: 5.23 ft at 4:00PM Apr 15, 2024Observed: 5.21 ft at 4:15PM Apr 15, 2024Observed: 5.23 ft at 4:30PM Apr 15, 2024Observed: 5.23 ft at 4:45PM Apr 15, 2024Observed: 5.24 ft at 5:00PM Apr 15, 2024Observed: 5.22 ft at 5:15PM Apr 15, 2024Observed: 5.22 ft at 5:30PM Apr 15, 2024Observed: 5.22 ft at 5:45PM Apr 15, 2024Observed: 5.22 ft at 6:00PM Apr 15, 2024Observed: 5.23 ft at 6:15PM Apr 15, 2024Observed: 5.22 ft at 6:30PM Apr 15, 2024Observed: 5.22 ft at 6:45PM Apr 15, 2024Observed: 5.22 ft at 7:00PM Apr 15, 2024Observed: 5.21 ft at 7:15PM Apr 15, 2024Observed: 5.22 ft at 7:30PM Apr 15, 2024Observed: 5.21 ft at 7:45PM Apr 15, 2024Observed: 5.21 ft at 8:00PM Apr 15, 2024Observed: 5.21 ft at 8:15PM Apr 15, 2024Observed: 5.21 ft at 8:30PM Apr 15, 2024Observed: 5.21 ft at 8:45PM Apr 15, 2024Observed: 5.2 ft at 9:00PM Apr 15, 2024Observed: 5.2 ft at 9:15PM Apr 15, 2024Observed: 5.2 ft at 9:30PM Apr 15, 2024Observed: 5.2 ft at 9:45PM Apr 15, 2024Observed: 5.2 ft at 10:00PM Apr 15, 2024Observed: 5.2 ft at 10:15PM Apr 15, 2024Observed: 5.19 ft at 10:30PM Apr 15, 2024Observed: 5.19 ft at 10:45PM Apr 15, 2024Observed: 5.18 ft at 11:00PM Apr 15, 2024Observed: 5.2 ft at 11:15PM Apr 15, 2024Observed: 5.19 ft at 11:30PM Apr 15, 2024Observed: 5.19 ft at 11:45PM Apr 15, 2024Observed: 5.18 ft at 12:00AM Apr 16, 2024Observed: 5.18 ft at 12:15AM Apr 16, 2024Observed: 5.18 ft at 12:30AM Apr 16, 2024Observed: 5.18 ft at 12:45AM Apr 16, 2024Observed: 5.18 ft at 1:00AM Apr 16, 2024Observed: 5.18 ft at 1:15AM Apr 16, 2024Observed: 5.18 ft at 1:30AM Apr 16, 2024Observed: 5.18 ft at 1:45AM Apr 16, 2024Observed: 5.17 ft at 2:00AM Apr 16, 2024Observed: 5.17 ft at 2:15AM Apr 16, 2024Observed: 5.17 ft at 2:30AM Apr 16, 2024Observed: 5.17 ft at 2:45AM Apr 16, 2024Observed: 5.17 ft at 3:00AM Apr 16, 2024Observed: 5.17 ft at 3:15AM Apr 16, 2024Observed: 5.16 ft at 3:30AM Apr 16, 2024Observed: 5.17 ft at 3:45AM Apr 16, 2024Observed: 5.16 ft at 4:45AM Apr 16, 2024Observed: 5.16 ft at 5:00AM Apr 16, 2024Observed: 5.16 ft at 5:15AM Apr 16, 2024Observed: 5.16 ft at 5:30AM Apr 16, 2024Observed: 5.16 ft at 5:45AM Apr 16, 2024Observed: 5.16 ft at 6:00AM Apr 16, 2024Observed: 5.16 ft at 6:15AM Apr 16, 2024Observed: 5.16 ft at 6:30AM Apr 16, 2024Observed: 5.16 ft at 6:45AM Apr 16, 2024Observed: 5.16 ft at 7:00AM Apr 16, 2024Observed: 5.16 ft at 7:15AM Apr 16, 2024Observed: 5.16 ft at 7:30AM Apr 16, 2024Observed: 5.15 ft at 7:45AM Apr 16, 2024Observed: 5.15 ft at 8:00AM Apr 16, 2024Observed: 5.15 ft at 8:15AM Apr 16, 2024Observed: 5.16 ft at 8:30AM Apr 16, 2024Observed: 5.15 ft at 8:45AM Apr 16, 2024Observed: 5.15 ft at 9:00AM Apr 16, 2024Observed: 5.15 ft at 9:15AM Apr 16, 2024Observed: 5.15 ft at 9:30AM Apr 16, 2024Observed: 5.16 ft at 9:45AM Apr 16, 2024Observed: 5.15 ft at 10:00AM Apr 16, 2024Observed: 5.15 ft at 10:15AM Apr 16, 2024Observed: 5.15 ft at 10:30AM Apr 16, 2024Observed: 5.15 ft at 10:45AM Apr 16, 2024Observed: 5.15 ft at 11:00AM Apr 16, 2024Observed: 5.15 ft at 11:15AM Apr 16, 2024Observed: 5.14 ft at 11:30AM Apr 16, 2024Observed: 5.15 ft at 11:45AM Apr 16, 2024Observed: 5.14 ft at 12:00PM Apr 16, 2024Observed: 5.14 ft at 12:15PM Apr 16, 2024Observed: 5.15 ft at 12:30PM Apr 16, 2024Observed: 5.13 ft at 12:45PM Apr 16, 2024Observed: 5.14 ft at 1:00PM Apr 16, 2024Observed: 5.14 ft at 1:15PM Apr 16, 2024Observed: 5.13 ft at 1:30PM Apr 16, 2024Observed: 5.14 ft at 1:45PM Apr 16, 2024Observed: 5.14 ft at 2:00PM Apr 16, 2024Observed: 5.14 ft at 2:15PM Apr 16, 2024Observed: 5.14 ft at 2:30PM Apr 16, 2024Observed: 5.14 ft at 2:45PM Apr 16, 2024Observed: 5.13 ft at 3:00PM Apr 16, 2024Observed: 5.13 ft at 3:15PM Apr 16, 2024Observed: 5.13 ft at 3:30PM Apr 16, 2024Observed: 5.13 ft at 3:45PM Apr 16, 2024Observed: 5.13 ft at 4:00PM Apr 16, 2024Observed: 5.13 ft at 4:15PM Apr 16, 2024Observed: 5.11 ft at 4:30PM Apr 16, 2024Observed: 5.12 ft at 4:45PM Apr 16, 2024Observed: 5.12 ft at 5:00PM Apr 16, 2024Observed: 5.13 ft at 5:15PM Apr 16, 2024Observed: 5.12 ft at 5:30PM Apr 16, 2024Observed: 5.12 ft at 5:45PM Apr 16, 2024Observed: 5.12 ft at 6:00PM Apr 16, 2024Observed: 5.12 ft at 6:15PM Apr 16, 2024Observed: 5.12 ft at 6:30PM Apr 16, 2024Observed: 5.12 ft at 6:45PM Apr 16, 2024Observed: 5.12 ft at 7:00PM Apr 16, 2024Observed: 5.12 ft at 7:15PM Apr 16, 2024Observed: 5.11 ft at 7:30PM Apr 16, 2024Observed: 5.11 ft at 7:45PM Apr 16, 2024Observed: 5.12 ft at 8:00PM Apr 16, 2024Observed: 5.11 ft at 8:15PM Apr 16, 2024Observed: 5.11 ft at 8:30PM Apr 16, 2024Observed: 5.11 ft at 8:45PM Apr 16, 2024Observed: 5.11 ft at 9:00PM Apr 16, 2024Observed: 5.1 ft at 9:15PM Apr 16, 2024Observed: 5.11 ft at 9:30PM Apr 16, 2024Observed: 5.1 ft at 9:45PM Apr 16, 2024Observed: 5.1 ft at 10:00PM Apr 16, 2024Observed: 5.1 ft at 10:15PM Apr 16, 2024Observed: 5.1 ft at 10:30PM Apr 16, 2024Observed: 5.09 ft at 10:45PM Apr 16, 2024Observed: 5.1 ft at 11:00PM Apr 16, 2024Observed: 5.09 ft at 11:15PM Apr 16, 2024Observed: 5.1 ft at 11:30PM Apr 16, 2024Observed: 5.09 ft at 11:45PM Apr 16, 2024Observed: 5.09 ft at 12:00AM Apr 17, 2024Observed: 5.09 ft at 12:15AM Apr 17, 2024Observed: 5.09 ft at 12:30AM Apr 17, 2024Observed: 5.09 ft at 12:45AM Apr 17, 2024Observed: 5.09 ft at 1:00AM Apr 17, 2024Observed: 5.09 ft at 1:15AM Apr 17, 2024Observed: 5.09 ft at 1:30AM Apr 17, 2024Observed: 5.08 ft at 1:45AM Apr 17, 2024Observed: 5.08 ft at 2:00AM Apr 17, 2024Observed: 5.08 ft at 2:15AM Apr 17, 2024Observed: 5.09 ft at 2:30AM Apr 17, 2024Observed: 5.09 ft at 2:45AM Apr 17, 2024Observed: 5.08 ft at 3:00AM Apr 17, 2024Observed: 5.08 ft at 3:15AM Apr 17, 2024Observed: 5.08 ft at 3:30AM Apr 17, 2024Observed: 5.08 ft at 3:45AM Apr 17, 2024Observed: 5.08 ft at 4:00AM Apr 17, 2024Observed: 5.08 ft at 4:15AM Apr 17, 2024Observed: 5.08 ft at 4:30AM Apr 17, 2024Observed: 5.08 ft at 4:45AM Apr 17, 2024Observed: 5.08 ft at 5:00AM Apr 17, 2024Observed: 5.08 ft at 5:15AM Apr 17, 2024Observed: 5.08 ft at 5:30AM Apr 17, 2024Observed: 5.08 ft at 5:45AM Apr 17, 2024Observed: 5.08 ft at 6:00AM Apr 17, 2024Observed: 5.07 ft at 6:15AM Apr 17, 2024Observed: 5.07 ft at 6:30AM Apr 17, 2024Observed: 5.08 ft at 6:45AM Apr 17, 2024Observed: 5.07 ft at 7:00AM Apr 17, 2024Observed: 5.07 ft at 7:15AM Apr 17, 2024Observed: 5.07 ft at 7:30AM Apr 17, 2024Observed: 5.07 ft at 7:45AM Apr 17, 2024Observed: 5.07 ft at 8:00AM Apr 17, 2024Observed: 5.07 ft at 8:15AM Apr 17, 2024Observed: 5.08 ft at 8:30AM Apr 17, 2024Observed: 5.08 ft at 8:45AM Apr 17, 2024Observed: 5.07 ft at 9:00AM Apr 17, 2024Observed: 5.07 ft at 9:15AM Apr 17, 2024Observed: 5.07 ft at 9:30AM Apr 17, 2024Observed: 5.07 ft at 9:45AM Apr 17, 2024Observed: 5.07 ft at 10:00AM Apr 17, 2024Observed: 5.07 ft at 10:15AM Apr 17, 2024Observed: 5.07 ft at 10:30AM Apr 17, 2024Observed: 5.07 ft at 10:45AM Apr 17, 2024Observed: 5.07 ft at 11:00AM Apr 17, 2024Observed: 5.07 ft at 11:15AM Apr 17, 2024Observed: 5.07 ft at 11:30AM Apr 17, 2024Observed: 5.07 ft at 11:45AM Apr 17, 2024Observed: 5.07 ft at 12:00PM Apr 17, 2024Observed: 5.07 ft at 12:15PM Apr 17, 2024Observed: 5.07 ft at 12:30PM Apr 17, 2024Observed: 5.06 ft at 12:45PM Apr 17, 2024Observed: 5.07 ft at 1:00PM Apr 17, 2024Observed: 5.07 ft at 1:15PM Apr 17, 2024Observed: 5.07 ft at 1:30PM Apr 17, 2024Observed: 5.07 ft at 1:45PM Apr 17, 2024Observed: 5.07 ft at 2:00PM Apr 17, 2024Observed: 5.06 ft at 2:15PM Apr 17, 2024Observed: 5.07 ft at 2:30PM Apr 17, 2024Observed: 5.07 ft at 2:45PM Apr 17, 2024Observed: 5.07 ft at 3:00PM Apr 17, 2024Observed: 5.07 ft at 3:15PM Apr 17, 2024Observed: 5.07 ft at 3:30PM Apr 17, 2024Observed: 5.07 ft at 3:45PM Apr 17, 2024Observed: 5.07 ft at 4:00PM Apr 17, 2024Observed: 5.06 ft at 4:15PM Apr 17, 2024Observed: 5.06 ft at 4:30PM Apr 17, 2024Observed: 5.06 ft at 4:45PM Apr 17, 2024Observed: 5.06 ft at 5:00PM Apr 17, 2024Observed: 5.06 ft at 5:15PM Apr 17, 2024Observed: 5.05 ft at 5:30PM Apr 17, 2024Observed: 5.05 ft at 5:45PM Apr 17, 2024Observed: 5.05 ft at 6:00PM Apr 17, 2024Observed: 5.05 ft at 6:15PM Apr 17, 2024Observed: 5.06 ft at 6:30PM Apr 17, 2024Observed: 5.05 ft at 6:45PM Apr 17, 2024Observed: 5.05 ft at 7:00PM Apr 17, 2024Observed: 5.04 ft at 7:15PM Apr 17, 2024Observed: 5.05 ft at 7:30PM Apr 17, 2024Observed: 5.05 ft at 7:45PM Apr 17, 2024Observed: 5.04 ft at 8:00PM Apr 17, 2024Observed: 5.04 ft at 8:15PM Apr 17, 2024Observed: 5.04 ft at 8:30PM Apr 17, 2024Observed: 5.04 ft at 8:45PM Apr 17, 2024Observed: 5.03 ft at 9:00PM Apr 17, 2024Observed: 5.03 ft at 9:15PM Apr 17, 2024Observed: 5.04 ft at 9:30PM Apr 17, 2024Observed: 5.02 ft at 9:45PM Apr 17, 2024Observed: 5.03 ft at 10:00PM Apr 17, 2024Observed: 5.02 ft at 10:15PM Apr 17, 2024Observed: 5.03 ft at 10:30PM Apr 17, 2024Observed: 5.03 ft at 10:45PM Apr 17, 2024Observed: 5.03 ft at 11:00PM Apr 17, 2024Observed: 5.03 ft at 11:15PM Apr 17, 2024Observed: 5.02 ft at 11:30PM Apr 17, 2024Observed: 5.02 ft at 11:45PM Apr 17, 2024Observed: 5.02 ft at 12:00AM Apr 18, 2024Observed: 5.02 ft at 12:15AM Apr 18, 2024Observed: 5.02 ft at 12:30AM Apr 18, 2024Observed: 5.02 ft at 12:45AM Apr 18, 2024Observed: 5.02 ft at 1:00AM Apr 18, 2024Observed: 5.02 ft at 1:15AM Apr 18, 2024Observed: 5.02 ft at 1:30AM Apr 18, 2024Observed: 5.02 ft at 1:45AM Apr 18, 2024Observed: 5.02 ft at 2:00AM Apr 18, 2024Observed: 5.02 ft at 2:15AM Apr 18, 2024Observed: 5.03 ft at 2:30AM Apr 18, 2024Observed: 5.03 ft at 2:45AM Apr 18, 2024Observed: 5.03 ft at 3:00AM Apr 18, 2024Observed: 5.03 ft at 3:15AM Apr 18, 2024Observed: 5.03 ft at 3:30AM Apr 18, 2024Observed: 5.02 ft at 3:45AM Apr 18, 2024Observed: 5.02 ft at 4:00AM Apr 18, 2024Observed: 5.02 ft at 4:15AM Apr 18, 2024Observed: 5.02 ft at 4:30AM Apr 18, 2024Observed: 5.02 ft at 4:45AM Apr 18, 2024Observed: 5.01 ft at 5:00AM Apr 18, 2024Observed: 5.01 ft at 5:15AM Apr 18, 2024Observed: 5.01 ft at 5:30AM Apr 18, 2024Observed: 5.01 ft at 5:45AM Apr 18, 2024Observed: 5.01 ft at 6:00AM Apr 18, 2024Observed: 5.01 ft at 6:15AM Apr 18, 2024Observed: 5.01 ft at 6:30AM Apr 18, 2024Observed: 5 ft at 6:45AM Apr 18, 2024Observed: 5.02 ft at 7:00AM Apr 18, 2024Observed: 5.01 ft at 7:15AM Apr 18, 2024Observed: 5 ft at 7:30AM Apr 18, 2024Observed: 5.01 ft at 7:45AM Apr 18, 2024Observed: 5.01 ft at 8:00AM Apr 18, 2024Observed: 5.01 ft at 8:15AM Apr 18, 2024Observed: 5.01 ft at 8:30AM Apr 18, 2024Observed: 5.01 ft at 8:45AM Apr 18, 2024Observed: 5 ft at 9:00AM Apr 18, 2024Observed: 5.01 ft at 9:15AM Apr 18, 2024Observed: 5.01 ft at 9:30AM Apr 18, 2024Observed: 5 ft at 9:45AM Apr 18, 2024Observed: 5 ft at 10:00AM Apr 18, 2024Observed: 5 ft at 10:15AM Apr 18, 2024Observed: 5 ft at 10:30AM Apr 18, 2024Observed: 4.99 ft at 10:45AM Apr 18, 2024Observed: 4.99 ft at 11:00AM Apr 18, 2024Observed: 5.01 ft at 11:15AM Apr 18, 2024Observed: 5.01 ft at 11:30AM Apr 18, 2024Observed: 4.99 ft at 11:45AM Apr 18, 2024Observed: 5.01 ft at 12:00PM Apr 18, 2024Observed: 5.01 ft at 12:15PM Apr 18, 2024Observed: 5 ft at 12:30PM Apr 18, 2024Observed: 5 ft at 12:45PM Apr 18, 2024Observed: 5 ft at 1:00PM Apr 18, 2024Observed: 4.99 ft at 1:15PM Apr 18, 2024Observed: 5 ft at 1:30PM Apr 18, 2024Observed: 5 ft at 1:45PM Apr 18, 2024Observed: 4.99 ft at 2:00PM Apr 18, 2024Observed: 5 ft at 2:15PM Apr 18, 2024Observed: 5 ft at 2:30PM Apr 18, 2024Observed: 4.99 ft at 2:45PM Apr 18, 2024Observed: 4.99 ft at 3:00PM Apr 18, 2024Observed: 4.99 ft at 3:15PM Apr 18, 2024Observed: 4.97 ft at 3:30PM Apr 18, 2024Observed: 4.99 ft at 3:45PM Apr 18, 2024Observed: 4.97 ft at 4:00PM Apr 18, 2024Observed: 4.97 ft at 4:15PM Apr 18, 2024Observed: 4.99 ft at 4:30PM Apr 18, 2024Observed: 4.98 ft at 4:45PM Apr 18, 2024Observed: 4.99 ft at 5:00PM Apr 18, 2024Observed: 4.99 ft at 5:15PM Apr 18, 2024Observed: 4.98 ft at 5:30PM Apr 18, 2024Observed: 4.99 ft at 5:45PM Apr 18, 2024Observed: 4.99 ft at 6:00PM Apr 18, 2024Observed: 4.98 ft at 6:15PM Apr 18, 2024Observed: 4.98 ft at 6:30PM Apr 18, 2024Observed: 4.98 ft at 6:45PM Apr 18, 2024Observed: 4.98 ft at 7:00PM Apr 18, 2024Observed: 4.98 ft at 7:15PM Apr 18, 2024Observed: 4.98 ft at 7:30PM Apr 18, 2024Observed: 4.99 ft at 7:45PM Apr 18, 2024Observed: 4.98 ft at 8:00PM Apr 18, 2024Observed: 4.98 ft at 8:15PM Apr 18, 2024Observed: 4.98 ft at 8:30PM Apr 18, 2024Observed: 4.98 ft at 8:45PM Apr 18, 2024Observed: 4.97 ft at 9:00PM Apr 18, 2024Observed: 4.98 ft at 9:15PM Apr 18, 2024Observed: 4.98 ft at 9:30PM Apr 18, 2024Observed: 4.98 ft at 9:45PM Apr 18, 2024Observed: 4.97 ft at 10:00PM Apr 18, 2024Observed: 4.98 ft at 10:15PM Apr 18, 2024Observed: 4.97 ft at 10:30PM Apr 18, 2024Observed: 4.98 ft at 10:45PM Apr 18, 2024Observed: 4.97 ft at 11:00PM Apr 18, 2024Observed: 4.97 ft at 11:15PM Apr 18, 2024Observed: 4.97 ft at 11:30PM Apr 18, 2024Observed: 4.97 ft at 11:45PM Apr 18, 2024Observed: 4.97 ft at 12:00AM Apr 19, 2024Observed: 4.96 ft at 12:15AM Apr 19, 2024Observed: 4.97 ft at 12:30AM Apr 19, 2024Observed: 4.97 ft at 12:45AM Apr 19, 2024Observed: 4.97 ft at 1:00AM Apr 19, 2024Observed: 4.96 ft at 1:15AM Apr 19, 2024Observed: 4.97 ft at 1:30AM Apr 19, 2024Observed: 4.96 ft at 1:45AM Apr 19, 2024Observed: 4.97 ft at 2:00AM Apr 19, 2024Observed: 4.96 ft at 2:15AM Apr 19, 2024Observed: 4.97 ft at 2:30AM Apr 19, 2024Observed: 4.96 ft at 2:45AM Apr 19, 2024Observed: 4.96 ft at 3:00AM Apr 19, 2024Observed: 4.96 ft at 3:15AM Apr 19, 2024Observed: 4.96 ft at 3:30AM Apr 19, 2024Observed: 4.96 ft at 3:45AM Apr 19, 2024Observed: 4.96 ft at 4:00AM Apr 19, 2024Observed: 4.96 ft at 4:15AM Apr 19, 2024Observed: 4.96 ft at 4:30AM Apr 19, 2024Observed: 4.96 ft at 4:45AM Apr 19, 2024Observed: 4.96 ft at 5:00AM Apr 19, 2024Observed: 4.96 ft at 5:15AM Apr 19, 2024Observed: 4.96 ft at 5:30AM Apr 19, 2024Observed: 4.96 ft at 5:45AM Apr 19, 2024Observed: 4.96 ft at 6:00AM Apr 19, 2024Observed: 4.96 ft at 6:15AM Apr 19, 2024Observed: 4.96 ft at 6:30AM Apr 19, 2024Observed: 4.96 ft at 6:45AM Apr 19, 2024Observed: 4.96 ft at 7:00AM Apr 19, 2024Observed: 4.96 ft at 7:15AM Apr 19, 2024Observed: 4.95 ft at 7:30AM Apr 19, 2024Observed: 4.96 ft at 7:45AM Apr 19, 2024Observed: 4.97 ft at 8:00AM Apr 19, 2024Observed: 4.96 ft at 8:15AM Apr 19, 2024Observed: 4.96 ft at 8:30AM Apr 19, 2024Observed: 4.96 ft at 8:45AM Apr 19, 2024Observed: 4.96 ft at 9:00AM Apr 19, 2024Observed: 4.96 ft at 9:15AM Apr 19, 2024Observed: 4.96 ft at 9:30AM Apr 19, 2024Observed: 4.96 ft at 9:45AM Apr 19, 2024Observed: 4.96 ft at 10:00AM Apr 19, 2024Observed: 4.97 ft at 10:15AM Apr 19, 2024Observed: 4.96 ft at 10:30AM Apr 19, 2024Highest Forecast: 4.9 ft 12:00PM Apr 19, 2024Highest Forecast: 4.9 ft 1:00PM Apr 19, 2024Highest Forecast: 4.9 ft 2:00PM Apr 19, 2024Highest Forecast: 4.9 ft 3:00PM Apr 19, 2024Highest Forecast: 4.9 ft 4:00PM Apr 19, 2024Highest Forecast: 4.9 ft 5:00PM Apr 19, 2024Highest Forecast: 4.9 ft 6:00PM Apr 19, 2024Highest Forecast: 4.9 ft 7:00PM Apr 19, 2024Highest Forecast: 4.9 ft 8:00PM Apr 19, 2024Highest Forecast: 4.9 ft 9:00PM Apr 19, 2024Highest Forecast: 4.9 ft 10:00PM Apr 19, 2024Highest Forecast: 4.9 ft 11:00PM Apr 19, 2024Highest Forecast: 4.9 ft 12:00AM Apr 20, 2024Highest Forecast: 4.9 ft 1:00AM Apr 20, 2024Highest Forecast: 4.9 ft 2:00AM Apr 20, 2024Highest Forecast: 4.9 ft 3:00AM Apr 20, 2024Highest Forecast: 4.9 ft 4:00AM Apr 20, 2024Highest Forecast: 4.9 ft 5:00AM Apr 20, 2024Highest Forecast: 4.9 ft 6:00AM Apr 20, 2024Highest Forecast: 4.9 ft 7:00AM Apr 20, 2024Highest Forecast: 4.9 ft 8:00AM Apr 20, 2024Forecast: 4.8 ft 9:00AM Apr 20, 2024Forecast: 4.8 ft 10:00AM Apr 20, 2024Forecast: 4.8 ft 11:00AM Apr 20, 2024Forecast: 4.8 ft 12:00PM Apr 20, 2024Forecast: 4.8 ft 1:00PM Apr 20, 2024Forecast: 4.8 ft 2:00PM Apr 20, 2024Forecast: 4.8 ft 3:00PM Apr 20, 2024Forecast: 4.8 ft 4:00PM Apr 20, 2024Forecast: 4.8 ft 5:00PM Apr 20, 2024Forecast: 4.8 ft 6:00PM Apr 20, 2024Forecast: 4.8 ft 7:00PM Apr 20, 2024Forecast: 4.8 ft 8:00PM Apr 20, 2024Forecast: 4.8 ft 9:00PM Apr 20, 2024Forecast: 4.8 ft 10:00PM Apr 20, 2024Forecast: 4.8 ft 11:00PM Apr 20, 2024Forecast: 4.8 ft 12:00AM Apr 21, 2024Forecast: 4.8 ft 1:00AM Apr 21, 2024Forecast: 4.8 ft 2:00AM Apr 21, 2024Forecast: 4.8 ft 3:00AM Apr 21, 2024Forecast: 4.8 ft 4:00AM Apr 21, 2024Forecast: 4.8 ft 5:00AM Apr 21, 2024Forecast: 4.8 ft 6:00AM Apr 21, 2024Forecast: 4.8 ft 7:00AM Apr 21, 2024Forecast: 4.8 ft 8:00AM Apr 21, 2024Forecast: 4.8 ft 9:00AM Apr 21, 2024Forecast: 4.7 ft 10:00AM Apr 21, 2024Forecast: 4.7 ft 11:00AM Apr 21, 2024Forecast: 4.7 ft 12:00PM Apr 21, 2024Forecast: 4.7 ft 1:00PM Apr 21, 2024Forecast: 4.7 ft 2:00PM Apr 21, 2024Forecast: 4.7 ft 3:00PM Apr 21, 2024Forecast: 4.7 ft 4:00PM Apr 21, 2024Forecast: 4.7 ft 5:00PM Apr 21, 2024Forecast: 4.7 ft 6:00PM Apr 21, 2024Forecast: 4.7 ft 7:00PM Apr 21, 2024Forecast: 4.7 ft 8:00PM Apr 21, 2024Forecast: 4.7 ft 9:00PM Apr 21, 2024Forecast: 4.7 ft 10:00PM Apr 21, 2024Forecast: 4.7 ft 11:00PM Apr 21, 2024Forecast: 4.7 ft 12:00AM Apr 22, 2024Forecast: 4.7 ft 1:00AM Apr 22, 2024Forecast: 4.7 ft 2:00AM Apr 22, 2024Forecast: 4.7 ft 3:00AM Apr 22, 2024Forecast: 4.7 ft 4:00AM Apr 22, 2024Forecast: 4.7 ft 5:00AM Apr 22, 2024Forecast: 4.7 ft 6:00AM Apr 22, 2024Forecast: 4.7 ft 7:00AM Apr 22, 2024Forecast: 4.6 ft 8:00AM Apr 22, 2024Forecast: 4.6 ft 9:00AM Apr 22, 2024Forecast: 4.6 ft 10:00AM Apr 22, 2024Forecast: 4.6 ft 11:00AM Apr 22, 2024Forecast: 4.6 ft 12:00PM Apr 22, 2024Forecast: 4.6 ft 1:00PM Apr 22, 2024Forecast: 4.6 ft 2:00PM Apr 22, 2024Forecast: 4.6 ft 3:00PM Apr 22, 2024Forecast: 4.6 ft 4:00PM Apr 22, 2024Forecast: 4.6 ft 5:00PM Apr 22, 2024Forecast: 4.6 ft 6:00PM Apr 22, 2024Forecast: 4.6 ft 7:00PM Apr 22, 2024Forecast: 4.6 ft 8:00PM Apr 22, 2024Forecast: 4.6 ft 9:00PM Apr 22, 2024Forecast: 4.6 ft 10:00PM Apr 22, 2024Forecast: 4.6 ft 11:00PM Apr 22, 2024Forecast: 4.6 ft 12:00AM Apr 23, 2024Forecast: 4.6 ft 1:00AM Apr 23, 2024Forecast: 4.6 ft 2:00AM Apr 23, 2024Forecast: 4.6 ft 3:00AM Apr 23, 2024Forecast: 4.6 ft 4:00AM Apr 23, 2024Forecast: 4.5 ft 5:00AM Apr 23, 2024Forecast: 4.5 ft 6:00AM Apr 23, 2024Forecast: 4.5 ft 7:00AM Apr 23, 2024Forecast: 4.5 ft 8:00AM Apr 23, 2024Forecast: 4.5 ft 9:00AM Apr 23, 2024Forecast: 4.5 ft 10:00AM Apr 23, 2024Forecast: 4.5 ft 11:00AM Apr 23, 2024Forecast: 4.5 ft 12:00PM Apr 23, 2024Forecast: 4.5 ft 1:00PM Apr 23, 2024Forecast: 4.5 ft 2:00PM Apr 23, 2024Forecast: 4.5 ft 3:00PM Apr 23, 2024Forecast: 4.5 ft 4:00PM Apr 23, 2024Forecast: 4.5 ft 5:00PM Apr 23, 2024Forecast: 4.5 ft 6:00PM Apr 23, 2024Forecast: 4.5 ft 7:00PM Apr 23, 2024Forecast: 4.5 ft 8:00PM Apr 23, 2024Forecast: 4.5 ft 9:00PM Apr 23, 2024Forecast: 4.5 ft 10:00PM Apr 23, 2024Forecast: 4.5 ft 11:00PM Apr 23, 2024Forecast: 4.5 ft 12:00AM Apr 24, 2024Forecast: 4.4 ft 1:00AM Apr 24, 2024Forecast: 4.4 ft 2:00AM Apr 24, 2024Forecast: 4.4 ft 3:00AM Apr 24, 2024Forecast: 4.4 ft 4:00AM Apr 24, 2024Forecast: 4.4 ft 5:00AM Apr 24, 2024USGS--Water Resources of the United StatesBTEC1(plotting HGIRG) Graph Created (11:00AM Apr 19, 2024)ObservedForecast (issued 7:16AM Apr 19)Latest observed value: 4.96 ft at 10:30 AM PDT 19-Apr-2024. Flood Stage is 16.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
Reliability of the Forecast: Based on unobstructed flow

NOTE: Forecasts for the San Lorenzo River (CA) at Big Trees are issued routinely year-round.

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Flood Categories (in feet)
Major Flood Stage: 21.76
Moderate Flood Stage: 19.5
Flood Stage: 16.5
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 28.85 ft on 01/05/1982
(2) 24.54 ft on 01/09/2023
(3) 24.10 ft on 02/07/2017
(4) 24.08 ft on 02/03/1998
(5) 22.55 ft on 12/23/1955
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.90 ft on 03/14/2023
(2) 19.90 ft on 03/10/2023
(3) 21.83 ft on 01/14/2023
(4) 24.54 ft on 01/09/2023
(5) 22.15 ft on 12/31/2022
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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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
21.76 Major Flooding. At approximately 21.76 feet discharge in the San Lorenzo River is approximately 15,000 cfs. Major flooding in the Felton Grove neighborhood occurs at this stage, with roadways several feet deep and waters inundating the approaches to the Felton Covered Bridge. Felton Covered Bridge Park begins to experience widespread flooding at shallow depths. At 15,000 cfs, the City of Santa Cruz downstream will experience more serious flooding. The flood wave may take 2-3 hours to reach Santa Cruz.
19.5 Moderate Flooding. The St. Bernard Street area in Paradise Park is under several feet of water, with below grade floodplain infrastructure several feet deeper. St. Augustine Avenue neighborhood in Paradise Park begins to flood. Flooding imminent or already occurring in the Felton Grove neighborhood. Ground stories, first floors, and garages flooded. Felton Covered Bridge Park begins to flood.
16.5 Minor Flooding. Flooding is either imminent or already occurring in Paradise Park, with initial flooding in the St. Bernard Street area.
14 Monitor Stage. Stage can rise rapidly on the San Lorenzo River, up to several feet per hour. Approximately 2.5 feet below flood levels in Paradise Park and approximately 5.5 feet below flood stage in Felton Grove.
About This Location Collapse

Latitude: 37.044393° N, Longitude: 122.072464° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 16.5 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 227 ft 243.5 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
San Francisco Bay Area Weather Forecast Office
21 Grace Hopper Ave, Stop 5
Monterey, CA 93943-5505
(831) 656-1725
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