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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

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Hydrograph River at a Glance Download
Old River near Byron Ca (Old River at Hwy 4) Stage (ft)Observed: 6.21 ft at 5:00PM Nov 28, 2023Observed: 6.3 ft at 5:15PM Nov 28, 2023Observed: 6.41 ft at 5:30PM Nov 28, 2023Observed: 6.49 ft at 5:45PM Nov 28, 2023Observed: 6.53 ft at 6:00PM Nov 28, 2023Observed: 6.55 ft at 6:15PM Nov 28, 2023Observed: 6.53 ft at 6:30PM Nov 28, 2023Observed: 6.47 ft at 6:45PM Nov 28, 2023Observed: 6.38 ft at 7:00PM Nov 28, 2023Observed: 6.28 ft at 7:15PM Nov 28, 2023Observed: 6.16 ft at 7:30PM Nov 28, 2023Observed: 6.02 ft at 7:45PM Nov 28, 2023Observed: 5.89 ft at 8:00PM Nov 28, 2023Observed: 5.77 ft at 8:15PM Nov 28, 2023Observed: 5.65 ft at 8:30PM Nov 28, 2023Observed: 5.53 ft at 8:45PM Nov 28, 2023Observed: 5.41 ft at 9:00PM Nov 28, 2023Observed: 5.28 ft at 9:15PM Nov 28, 2023Observed: 5.16 ft at 9:30PM Nov 28, 2023Observed: 5.03 ft at 9:45PM Nov 28, 2023Observed: 4.89 ft at 10:00PM Nov 28, 2023Observed: 4.77 ft at 10:15PM Nov 28, 2023Observed: 4.63 ft at 10:30PM Nov 28, 2023Observed: 4.51 ft at 10:45PM Nov 28, 2023Observed: 4.38 ft at 11:00PM Nov 28, 2023Observed: 4.25 ft at 11:15PM Nov 28, 2023Observed: 4.12 ft at 11:30PM Nov 28, 2023Observed: 3.99 ft at 11:45PM Nov 28, 2023Observed: 3.87 ft at 12:00AM Nov 29, 2023Observed: 3.73 ft at 12:15AM Nov 29, 2023Observed: 3.51 ft at 12:30AM Nov 29, 2023Observed: 3.36 ft at 12:45AM Nov 29, 2023Observed: 3.22 ft at 1:00AM Nov 29, 2023Observed: 3.09 ft at 1:15AM Nov 29, 2023Observed: 2.95 ft at 1:30AM Nov 29, 2023Observed: 2.88 ft at 1:45AM Nov 29, 2023Observed: 2.81 ft at 2:00AM Nov 29, 2023Observed: 2.73 ft at 2:15AM Nov 29, 2023Observed: 2.69 ft at 2:30AM Nov 29, 2023Observed: 2.68 ft at 2:45AM Nov 29, 2023Observed: 2.73 ft at 3:00AM Nov 29, 2023Observed: 2.84 ft at 3:15AM Nov 29, 2023Observed: 2.97 ft at 3:30AM Nov 29, 2023Observed: 3.11 ft at 3:45AM Nov 29, 2023Observed: 3.26 ft at 4:00AM Nov 29, 2023Observed: 3.4 ft at 4:15AM Nov 29, 2023Observed: 3.55 ft at 4:30AM Nov 29, 2023Observed: 3.67 ft at 4:45AM Nov 29, 2023Observed: 3.74 ft at 5:00AM Nov 29, 2023Observed: 3.83 ft at 5:15AM Nov 29, 2023Observed: 3.94 ft at 5:30AM Nov 29, 2023Observed: 4.03 ft at 5:45AM Nov 29, 2023Observed: 4.12 ft at 6:00AM Nov 29, 2023Observed: 4.23 ft at 6:15AM Nov 29, 2023Observed: 4.34 ft at 6:30AM Nov 29, 2023Observed: 4.43 ft at 6:45AM Nov 29, 2023Observed: 4.53 ft at 7:00AM Nov 29, 2023Observed: 4.62 ft at 7:15AM Nov 29, 2023Observed: 4.71 ft at 7:30AM Nov 29, 2023Observed: 4.79 ft at 7:45AM Nov 29, 2023Observed: 4.87 ft at 8:00AM Nov 29, 2023Observed: 4.94 ft at 8:15AM Nov 29, 2023Observed: 4.99 ft at 8:30AM Nov 29, 2023Observed: 5.03 ft at 8:45AM Nov 29, 2023Observed: 5.06 ft at 9:00AM Nov 29, 2023Observed: 5.07 ft at 9:15AM Nov 29, 2023Observed: 5.05 ft at 9:30AM Nov 29, 2023Observed: 5.01 ft at 9:45AM Nov 29, 2023Observed: 4.96 ft at 10:00AM Nov 29, 2023Observed: 4.9 ft at 10:15AM Nov 29, 2023Observed: 4.82 ft at 10:30AM Nov 29, 2023Observed: 4.75 ft at 10:45AM Nov 29, 2023Observed: 4.67 ft at 11:00AM Nov 29, 2023Observed: 4.59 ft at 11:15AM Nov 29, 2023Observed: 4.52 ft at 11:30AM Nov 29, 2023Observed: 4.45 ft at 11:45AM Nov 29, 2023Observed: 4.39 ft at 12:00PM Nov 29, 2023Observed: 4.35 ft at 12:15PM Nov 29, 2023Observed: 4.33 ft at 12:30PM Nov 29, 2023Observed: 4.34 ft at 12:45PM Nov 29, 2023Observed: 4.37 ft at 1:00PM Nov 29, 2023Observed: 4.51 ft at 1:15PM Nov 29, 2023Observed: 4.6 ft at 1:30PM Nov 29, 2023Observed: 4.72 ft at 1:45PM Nov 29, 2023Observed: 4.85 ft at 2:00PM Nov 29, 2023Observed: 4.98 ft at 2:15PM Nov 29, 2023Observed: 5.09 ft at 2:30PM Nov 29, 2023Observed: 5.2 ft at 2:45PM Nov 29, 2023Observed: 5.31 ft at 3:00PM Nov 29, 2023Observed: 5.43 ft at 3:15PM Nov 29, 2023Observed: 5.54 ft at 3:30PM Nov 29, 2023Observed: 5.66 ft at 3:45PM Nov 29, 2023Observed: 5.78 ft at 4:00PM Nov 29, 2023Observed: 5.9 ft at 4:15PM Nov 29, 2023Observed: 6.02 ft at 4:30PM Nov 29, 2023Observed: 6.13 ft at 4:45PM Nov 29, 2023Observed: 6.24 ft at 5:00PM Nov 29, 2023Observed: 6.35 ft at 5:15PM Nov 29, 2023Observed: 6.45 ft at 5:30PM Nov 29, 2023Observed: 6.54 ft at 5:45PM Nov 29, 2023Observed: 6.61 ft at 6:00PM Nov 29, 2023Observed: 6.67 ft at 6:15PM Nov 29, 2023Observed: 6.71 ft at 6:30PM Nov 29, 2023Observed: 6.72 ft at 6:45PM Nov 29, 2023Observed: 6.7 ft at 7:00PM Nov 29, 2023Observed: 6.64 ft at 7:15PM Nov 29, 2023Observed: 6.55 ft at 7:30PM Nov 29, 2023Observed: 6.44 ft at 7:45PM Nov 29, 2023Observed: 6.32 ft at 8:00PM Nov 29, 2023Observed: 6.19 ft at 8:15PM Nov 29, 2023Observed: 6.07 ft at 8:30PM Nov 29, 2023Observed: 5.94 ft at 8:45PM Nov 29, 2023Observed: 5.83 ft at 9:00PM Nov 29, 2023Observed: 5.71 ft at 9:15PM Nov 29, 2023Observed: 5.59 ft at 9:30PM Nov 29, 2023Observed: 5.47 ft at 9:45PM Nov 29, 2023Observed: 5.34 ft at 10:00PM Nov 29, 2023Observed: 5.21 ft at 10:15PM Nov 29, 2023Observed: 5.08 ft at 10:30PM Nov 29, 2023Observed: 4.95 ft at 10:45PM Nov 29, 2023Observed: 4.82 ft at 11:00PM Nov 29, 2023Observed: 4.68 ft at 11:15PM Nov 29, 2023Observed: 4.56 ft at 11:30PM Nov 29, 2023Observed: 4.42 ft at 11:45PM Nov 29, 2023Observed: 4.3 ft at 12:00AM Nov 30, 2023Observed: 3.5 ft at 1:15AM Nov 30, 2023Observed: 3.36 ft at 1:30AM Nov 30, 2023Observed: 3.22 ft at 1:45AM Nov 30, 2023Observed: 3.1 ft at 2:00AM Nov 30, 2023Observed: 3.04 ft at 2:15AM Nov 30, 2023Observed: 2.95 ft at 2:30AM Nov 30, 2023Observed: 2.87 ft at 2:45AM Nov 30, 2023Observed: 2.81 ft at 3:00AM Nov 30, 2023Observed: 2.77 ft at 3:15AM Nov 30, 2023Observed: 2.76 ft at 3:30AM Nov 30, 2023Observed: 2.81 ft at 3:45AM Nov 30, 2023Observed: 2.93 ft at 4:00AM Nov 30, 2023Observed: 3.06 ft at 4:15AM Nov 30, 2023Observed: 3.19 ft at 4:30AM Nov 30, 2023Observed: 3.33 ft at 4:45AM Nov 30, 2023Observed: 3.48 ft at 5:00AM Nov 30, 2023Observed: 3.61 ft at 5:15AM Nov 30, 2023Observed: 3.7 ft at 5:30AM Nov 30, 2023Observed: 3.79 ft at 5:45AM Nov 30, 2023Observed: 3.88 ft at 6:00AM Nov 30, 2023Observed: 3.98 ft at 6:15AM Nov 30, 2023Observed: 4.07 ft at 6:30AM Nov 30, 2023Observed: 4.18 ft at 6:45AM Nov 30, 2023Observed: 4.29 ft at 7:00AM Nov 30, 2023Observed: 4.39 ft at 7:15AM Nov 30, 2023Observed: 4.49 ft at 7:30AM Nov 30, 2023Observed: 4.59 ft at 7:45AM Nov 30, 2023Observed: 4.68 ft at 8:00AM Nov 30, 2023Observed: 4.77 ft at 8:15AM Nov 30, 2023Observed: 4.85 ft at 8:30AM Nov 30, 2023Observed: 4.93 ft at 8:45AM Nov 30, 2023Observed: 4.99 ft at 9:00AM Nov 30, 2023Observed: 5.05 ft at 9:15AM Nov 30, 2023Observed: 5.09 ft at 9:30AM Nov 30, 2023Observed: 5.12 ft at 9:45AM Nov 30, 2023Observed: 5.13 ft at 10:00AM Nov 30, 2023Observed: 5.13 ft at 10:15AM Nov 30, 2023Observed: 5.11 ft at 10:30AM Nov 30, 2023Observed: 5.07 ft at 10:45AM Nov 30, 2023Observed: 5.01 ft at 11:00AM Nov 30, 2023Observed: 4.94 ft at 11:15AM Nov 30, 2023Observed: 4.88 ft at 11:30AM Nov 30, 2023Observed: 4.82 ft at 11:45AM Nov 30, 2023Observed: 4.75 ft at 12:00PM Nov 30, 2023Observed: 4.68 ft at 12:15PM Nov 30, 2023Observed: 4.63 ft at 12:30PM Nov 30, 2023Observed: 4.58 ft at 12:45PM Nov 30, 2023Observed: 4.55 ft at 1:00PM Nov 30, 2023Observed: 4.54 ft at 1:15PM Nov 30, 2023Observed: 4.61 ft at 1:30PM Nov 30, 2023Observed: 4.71 ft at 1:45PM Nov 30, 2023Observed: 4.77 ft at 2:00PM Nov 30, 2023Observed: 4.87 ft at 2:15PM Nov 30, 2023Observed: 4.98 ft at 2:30PM Nov 30, 2023Observed: 5.07 ft at 2:45PM Nov 30, 2023Observed: 5.17 ft at 3:00PM Nov 30, 2023Observed: 5.27 ft at 3:15PM Nov 30, 2023Observed: 5.38 ft at 3:30PM Nov 30, 2023Observed: 5.48 ft at 3:45PM Nov 30, 2023Observed: 5.59 ft at 4:00PM Nov 30, 2023Observed: 5.7 ft at 4:15PM Nov 30, 2023Observed: 5.81 ft at 4:30PM Nov 30, 2023Observed: 5.93 ft at 4:45PM Nov 30, 2023Observed: 6.04 ft at 5:00PM Nov 30, 2023Observed: 6.15 ft at 5:15PM Nov 30, 2023Observed: 6.26 ft at 5:30PM Nov 30, 2023Observed: 6.36 ft at 5:45PM Nov 30, 2023Observed: 6.46 ft at 6:00PM Nov 30, 2023Observed: 6.55 ft at 6:15PM Nov 30, 2023Observed: 6.63 ft at 6:30PM Nov 30, 2023Observed: 6.7 ft at 6:45PM Nov 30, 2023Observed: 6.74 ft at 7:00PM Nov 30, 2023Highest Observation: 6.77 ft at 7:15PM Nov 30, 2023Observed: 6.76 ft at 7:30PM Nov 30, 2023Observed: 6.73 ft at 7:45PM Nov 30, 2023Observed: 6.66 ft at 8:00PM Nov 30, 2023Observed: 6.57 ft at 8:15PM Nov 30, 2023Observed: 6.46 ft at 8:30PM Nov 30, 2023Observed: 6.33 ft at 8:45PM Nov 30, 2023Observed: 6.21 ft at 9:00PM Nov 30, 2023Observed: 6.09 ft at 9:15PM Nov 30, 2023Observed: 5.98 ft at 9:30PM Nov 30, 2023Observed: 5.86 ft at 9:45PM Nov 30, 2023Observed: 5.75 ft at 10:00PM Nov 30, 2023Observed: 5.63 ft at 10:15PM Nov 30, 2023Observed: 5.51 ft at 10:30PM Nov 30, 2023Observed: 5.38 ft at 10:45PM Nov 30, 2023Observed: 5.26 ft at 11:00PM Nov 30, 2023Observed: 5.13 ft at 11:15PM Nov 30, 2023Observed: 5.01 ft at 11:30PM Nov 30, 2023Observed: 4.88 ft at 11:45PM Nov 30, 2023Observed: 4.75 ft at 12:00AM Dec 01, 2023Observed: 4.63 ft at 12:15AM Dec 01, 2023Observed: 4.43 ft at 12:30AM Dec 01, 2023Observed: 4.27 ft at 12:45AM Dec 01, 2023Observed: 4.11 ft at 1:00AM Dec 01, 2023Observed: 3.95 ft at 1:15AM Dec 01, 2023Observed: 3.78 ft at 1:30AM Dec 01, 2023Observed: 3.65 ft at 1:45AM Dec 01, 2023Observed: 3.51 ft at 2:00AM Dec 01, 2023Observed: 3.37 ft at 2:15AM Dec 01, 2023Observed: 3.26 ft at 2:30AM Dec 01, 2023Observed: 3.16 ft at 2:45AM Dec 01, 2023Observed: 3.1 ft at 3:00AM Dec 01, 2023Observed: 3.04 ft at 3:15AM Dec 01, 2023Observed: 2.96 ft at 3:30AM Dec 01, 2023Observed: 2.91 ft at 3:45AM Dec 01, 2023Observed: 2.88 ft at 4:00AM Dec 01, 2023Observed: 2.88 ft at 4:15AM Dec 01, 2023Observed: 2.93 ft at 4:30AM Dec 01, 2023Observed: 3.03 ft at 4:45AM Dec 01, 2023Observed: 3.14 ft at 5:00AM Dec 01, 2023Observed: 3.27 ft at 5:15AM Dec 01, 2023Observed: 3.4 ft at 5:30AM Dec 01, 2023Observed: 3.54 ft at 5:45AM Dec 01, 2023Observed: 3.67 ft at 6:00AM Dec 01, 2023Observed: 3.75 ft at 6:15AM Dec 01, 2023Observed: 3.88 ft at 6:30AM Dec 01, 2023Observed: 3.99 ft at 6:45AM Dec 01, 2023Observed: 4.1 ft at 7:00AM Dec 01, 2023Observed: 4.21 ft at 7:15AM Dec 01, 2023Observed: 4.33 ft at 7:30AM Dec 01, 2023Observed: 4.43 ft at 7:45AM Dec 01, 2023Observed: 4.54 ft at 8:00AM Dec 01, 2023Observed: 4.64 ft at 8:15AM Dec 01, 2023Observed: 4.75 ft at 8:30AM Dec 01, 2023Observed: 4.85 ft at 8:45AM Dec 01, 2023Observed: 4.94 ft at 9:00AM Dec 01, 2023Observed: 5.03 ft at 9:15AM Dec 01, 2023Observed: 5.1 ft at 9:30AM Dec 01, 2023Observed: 5.17 ft at 9:45AM Dec 01, 2023Observed: 5.23 ft at 10:00AM Dec 01, 2023Observed: 5.27 ft at 10:15AM Dec 01, 2023Observed: 5.31 ft at 10:30AM Dec 01, 2023Observed: 5.32 ft at 10:45AM Dec 01, 2023Observed: 5.31 ft at 11:00AM Dec 01, 2023Observed: 5.28 ft at 11:15AM Dec 01, 2023Observed: 5.23 ft at 11:30AM Dec 01, 2023Observed: 5.17 ft at 11:45AM Dec 01, 2023Observed: 5.08 ft at 12:00PM Dec 01, 2023Observed: 5 ft at 12:15PM Dec 01, 2023Observed: 4.91 ft at 12:30PM Dec 01, 2023Observed: 4.83 ft at 12:45PM Dec 01, 2023Observed: 4.75 ft at 1:00PM Dec 01, 2023Observed: 4.67 ft at 1:15PM Dec 01, 2023Observed: 4.59 ft at 1:30PM Dec 01, 2023Observed: 4.52 ft at 1:45PM Dec 01, 2023Observed: 4.47 ft at 2:00PM Dec 01, 2023Observed: 4.43 ft at 2:15PM Dec 01, 2023Observed: 4.41 ft at 2:30PM Dec 01, 2023Observed: 4.44 ft at 2:45PM Dec 01, 2023Observed: 4.52 ft at 3:00PM Dec 01, 2023Observed: 4.6 ft at 3:15PM Dec 01, 2023Observed: 4.69 ft at 3:30PM Dec 01, 2023Observed: 4.81 ft at 3:45PM Dec 01, 2023Observed: 4.93 ft at 4:00PM Dec 01, 2023Observed: 5.04 ft at 4:15PM Dec 01, 2023Observed: 5.14 ft at 4:30PM Dec 01, 2023Observed: 5.25 ft at 4:45PM Dec 01, 2023Observed: 5.36 ft at 5:00PM Dec 01, 2023Observed: 5.46 ft at 5:15PM Dec 01, 2023Observed: 5.56 ft at 5:30PM Dec 01, 2023Observed: 5.67 ft at 5:45PM Dec 01, 2023Observed: 5.76 ft at 6:00PM Dec 01, 2023Observed: 5.87 ft at 6:15PM Dec 01, 2023Observed: 5.96 ft at 6:30PM Dec 01, 2023Observed: 6.05 ft at 6:45PM Dec 01, 2023Observed: 6.12 ft at 7:00PM Dec 01, 2023Observed: 6.19 ft at 7:15PM Dec 01, 2023Observed: 6.23 ft at 7:30PM Dec 01, 2023Observed: 6.26 ft at 7:45PM Dec 01, 2023Observed: 6.26 ft at 8:00PM Dec 01, 2023Observed: 6.24 ft at 8:15PM Dec 01, 2023Observed: 6.18 ft at 8:30PM Dec 01, 2023Observed: 6.1 ft at 8:45PM Dec 01, 2023Observed: 6 ft at 9:00PM Dec 01, 2023Observed: 5.88 ft at 9:15PM Dec 01, 2023Observed: 5.77 ft at 9:30PM Dec 01, 2023Observed: 5.65 ft at 9:45PM Dec 01, 2023Observed: 5.53 ft at 10:00PM Dec 01, 2023Observed: 5.41 ft at 10:15PM Dec 01, 2023Observed: 5.3 ft at 10:30PM Dec 01, 2023Observed: 5.18 ft at 10:45PM Dec 01, 2023Observed: 5.06 ft at 11:00PM Dec 01, 2023Observed: 4.93 ft at 11:15PM Dec 01, 2023Observed: 4.81 ft at 11:30PM Dec 01, 2023Observed: 4.68 ft at 11:45PM Dec 01, 2023Observed: 4.56 ft at 12:00AM Dec 02, 2023Observed: 4.43 ft at 12:15AM Dec 02, 2023Observed: 4.25 ft at 12:30AM Dec 02, 2023Observed: 4.08 ft at 12:45AM Dec 02, 2023Observed: 3.93 ft at 1:00AM Dec 02, 2023Observed: 3.77 ft at 1:15AM Dec 02, 2023Observed: 3.62 ft at 1:30AM Dec 02, 2023Observed: 3.48 ft at 1:45AM Dec 02, 2023Observed: 3.36 ft at 2:00AM Dec 02, 2023Observed: 3.21 ft at 2:15AM Dec 02, 2023Observed: 3.08 ft at 2:30AM Dec 02, 2023Observed: 2.96 ft at 2:45AM Dec 02, 2023Observed: 2.83 ft at 3:00AM Dec 02, 2023Observed: 2.71 ft at 3:15AM Dec 02, 2023Observed: 2.61 ft at 3:30AM Dec 02, 2023Observed: 2.57 ft at 3:45AM Dec 02, 2023Observed: 2.51 ft at 4:00AM Dec 02, 2023Observed: 2.44 ft at 4:15AM Dec 02, 2023Observed: 2.4 ft at 4:30AM Dec 02, 2023Observed: 2.41 ft at 4:45AM Dec 02, 2023Observed: 2.45 ft at 5:00AM Dec 02, 2023Observed: 2.53 ft at 5:15AM Dec 02, 2023Observed: 2.65 ft at 5:30AM Dec 02, 2023Observed: 2.77 ft at 5:45AM Dec 02, 2023Observed: 2.91 ft at 6:00AM Dec 02, 2023Observed: 3.06 ft at 6:15AM Dec 02, 2023Observed: 3.2 ft at 6:30AM Dec 02, 2023Observed: 3.32 ft at 6:45AM Dec 02, 2023Observed: 3.45 ft at 7:00AM Dec 02, 2023Observed: 3.55 ft at 7:15AM Dec 02, 2023Observed: 3.66 ft at 7:30AM Dec 02, 2023Observed: 3.78 ft at 7:45AM Dec 02, 2023Observed: 3.89 ft at 8:00AM Dec 02, 2023Observed: 4.01 ft at 8:15AM Dec 02, 2023Observed: 4.13 ft at 8:30AM Dec 02, 2023Observed: 4.23 ft at 8:45AM Dec 02, 2023Observed: 4.34 ft at 9:00AM Dec 02, 2023Observed: 4.45 ft at 9:15AM Dec 02, 2023Observed: 4.55 ft at 9:30AM Dec 02, 2023Observed: 4.65 ft at 9:45AM Dec 02, 2023Observed: 4.74 ft at 10:00AM Dec 02, 2023Observed: 4.82 ft at 10:15AM Dec 02, 2023Observed: 4.9 ft at 10:30AM Dec 02, 2023Observed: 4.96 ft at 10:45AM Dec 02, 2023Observed: 5.01 ft at 11:00AM Dec 02, 2023Observed: 5.05 ft at 11:15AM Dec 02, 2023Observed: 5.07 ft at 11:30AM Dec 02, 2023Observed: 5.08 ft at 11:45AM Dec 02, 2023Observed: 5.07 ft at 12:00PM Dec 02, 2023Observed: 5.04 ft at 12:15PM Dec 02, 2023Observed: 4.99 ft at 12:30PM Dec 02, 2023Observed: 4.93 ft at 12:45PM Dec 02, 2023Observed: 4.85 ft at 1:00PM Dec 02, 2023Observed: 4.78 ft at 1:15PM Dec 02, 2023Observed: 4.71 ft at 1:30PM Dec 02, 2023Observed: 4.63 ft at 1:45PM Dec 02, 2023Observed: 4.56 ft at 2:00PM Dec 02, 2023Observed: 4.48 ft at 2:15PM Dec 02, 2023Observed: 4.42 ft at 2:30PM Dec 02, 2023Observed: 4.36 ft at 2:45PM Dec 02, 2023Observed: 4.3 ft at 3:00PM Dec 02, 2023Observed: 4.26 ft at 3:15PM Dec 02, 2023Observed: 4.25 ft at 3:30PM Dec 02, 2023Observed: 4.25 ft at 3:45PM Dec 02, 2023Observed: 4.28 ft at 4:00PM Dec 02, 2023Observed: 4.34 ft at 4:15PM Dec 02, 2023Observed: 4.46 ft at 4:30PM Dec 02, 2023Observed: 4.54 ft at 4:45PM Dec 02, 2023Observed: 4.65 ft at 5:00PM Dec 02, 2023Observed: 4.75 ft at 5:15PM Dec 02, 2023Observed: 4.86 ft at 5:30PM Dec 02, 2023Observed: 4.94 ft at 5:45PM Dec 02, 2023Observed: 5.04 ft at 6:00PM Dec 02, 2023Observed: 5.49 ft at 7:15PM Dec 02, 2023Observed: 5.57 ft at 7:30PM Dec 02, 2023Observed: 5.64 ft at 7:45PM Dec 02, 2023Observed: 5.7 ft at 8:00PM Dec 02, 2023Observed: 5.75 ft at 8:15PM Dec 02, 2023Observed: 5.78 ft at 8:30PM Dec 02, 2023Observed: 5.78 ft at 8:45PM Dec 02, 2023Observed: 5.76 ft at 9:00PM Dec 02, 2023Observed: 5.71 ft at 9:15PM Dec 02, 2023Observed: 5.63 ft at 9:30PM Dec 02, 2023Observed: 5.55 ft at 9:45PM Dec 02, 2023Observed: 5.44 ft at 10:00PM Dec 02, 2023Observed: 5.33 ft at 10:15PM Dec 02, 2023Observed: 5.22 ft at 10:30PM Dec 02, 2023Observed: 5.1 ft at 10:45PM Dec 02, 2023Observed: 4.99 ft at 11:00PM Dec 02, 2023Observed: 4.87 ft at 11:15PM Dec 02, 2023Observed: 4.76 ft at 11:30PM Dec 02, 2023Observed: 4.64 ft at 11:45PM Dec 02, 2023Observed: 4.52 ft at 12:00AM Dec 03, 2023Observed: 4.39 ft at 12:15AM Dec 03, 2023Observed: 4.21 ft at 12:30AM Dec 03, 2023Observed: 4.05 ft at 12:45AM Dec 03, 2023Observed: 3.91 ft at 1:00AM Dec 03, 2023Observed: 3.76 ft at 1:15AM Dec 03, 2023Observed: 3.62 ft at 1:30AM Dec 03, 2023Observed: 3.49 ft at 1:45AM Dec 03, 2023Observed: 3.37 ft at 2:00AM Dec 03, 2023Observed: 3.24 ft at 2:15AM Dec 03, 2023Observed: 3.12 ft at 2:30AM Dec 03, 2023Observed: 3.01 ft at 2:45AM Dec 03, 2023Observed: 2.9 ft at 3:00AM Dec 03, 2023Observed: 2.78 ft at 3:15AM Dec 03, 2023Observed: 2.67 ft at 3:30AM Dec 03, 2023Observed: 2.57 ft at 3:45AM Dec 03, 2023Observed: 2.48 ft at 4:00AM Dec 03, 2023Observed: 2.39 ft at 4:15AM Dec 03, 2023Observed: 2.31 ft at 4:30AM Dec 03, 2023Observed: 2.25 ft at 4:45AM Dec 03, 2023Observed: 2.19 ft at 5:00AM Dec 03, 2023Observed: 2.17 ft at 5:15AM Dec 03, 2023Observed: 2.19 ft at 5:30AM Dec 03, 2023Observed: 2.26 ft at 5:45AM Dec 03, 2023Observed: 2.37 ft at 6:00AM Dec 03, 2023Observed: 2.49 ft at 6:15AM Dec 03, 2023Observed: 2.62 ft at 6:30AM Dec 03, 2023Observed: 2.77 ft at 6:45AM Dec 03, 2023Observed: 2.91 ft at 7:00AM Dec 03, 2023Observed: 3.05 ft at 7:15AM Dec 03, 2023Observed: 3.17 ft at 7:30AM Dec 03, 2023Observed: 3.3 ft at 7:45AM Dec 03, 2023Observed: 3.42 ft at 8:00AM Dec 03, 2023Observed: 3.52 ft at 8:15AM Dec 03, 2023Observed: 3.63 ft at 8:30AM Dec 03, 2023Observed: 3.74 ft at 8:45AM Dec 03, 2023Observed: 3.85 ft at 9:00AM Dec 03, 2023Observed: 3.95 ft at 9:15AM Dec 03, 2023Observed: 4.06 ft at 9:30AM Dec 03, 2023Observed: 4.15 ft at 9:45AM Dec 03, 2023Observed: 4.25 ft at 10:00AM Dec 03, 2023Observed: 4.36 ft at 10:15AM Dec 03, 2023Observed: 4.44 ft at 10:30AM Dec 03, 2023Observed: 4.53 ft at 10:45AM Dec 03, 2023Observed: 4.61 ft at 11:00AM Dec 03, 2023Observed: 4.68 ft at 11:15AM Dec 03, 2023Observed: 4.75 ft at 11:30AM Dec 03, 2023Observed: 4.81 ft at 11:45AM Dec 03, 2023Observed: 4.87 ft at 12:00PM Dec 03, 2023Observed: 4.93 ft at 12:15PM Dec 03, 2023Observed: 4.96 ft at 12:30PM Dec 03, 2023Observed: 4.97 ft at 12:45PM Dec 03, 2023Observed: 4.96 ft at 1:00PM Dec 03, 2023Observed: 4.93 ft at 1:15PM Dec 03, 2023Observed: 4.88 ft at 1:30PM Dec 03, 2023Observed: 4.82 ft at 1:45PM Dec 03, 2023Observed: 4.74 ft at 2:00PM Dec 03, 2023Observed: 4.68 ft at 2:15PM Dec 03, 2023Observed: 4.66 ft at 2:30PM Dec 03, 2023Observed: 4.57 ft at 2:45PM Dec 03, 2023Observed: 4.51 ft at 3:00PM Dec 03, 2023USGS--Water Resources of the United StatesOHFC1(plotting HGIRG) Graph Created (4:45PM Dec 3, 2023)ObservedLatest observed value: 4.51 ft at 3:00 PM PST 3-Dec-2023.
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Datum: NAVD88
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NOTE: Graphical forecasts are not available for the Old River near Byron Ca (Old River at Hwy 4). During times of high water, forecast crest information can be found in the text products.
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Flood Categories (in feet)
Not Available

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
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.
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Latitude: 37.891036° N, Longitude: 121.570228° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 0 ft 0 ft 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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