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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
San Marcos River at Luling Stage (ft)Flow (cfs)Observed: 3.8 ft at 1:45AM Nov 26, 2023Observed: 3.78 ft at 2:00AM Nov 26, 2023Observed: 3.79 ft at 2:15AM Nov 26, 2023Observed: 3.82 ft at 2:30AM Nov 26, 2023Observed: 3.82 ft at 2:45AM Nov 26, 2023Observed: 3.81 ft at 3:00AM Nov 26, 2023Observed: 3.8 ft at 3:15AM Nov 26, 2023Observed: 3.82 ft at 3:30AM Nov 26, 2023Observed: 3.81 ft at 3:45AM Nov 26, 2023Observed: 3.82 ft at 4:00AM Nov 26, 2023Observed: 3.82 ft at 4:15AM Nov 26, 2023Observed: 3.81 ft at 4:30AM Nov 26, 2023Observed: 3.81 ft at 4:45AM Nov 26, 2023Observed: 3.82 ft at 5:00AM Nov 26, 2023Observed: 3.83 ft at 5:15AM Nov 26, 2023Observed: 3.83 ft at 5:30AM Nov 26, 2023Observed: 3.81 ft at 5:45AM Nov 26, 2023Observed: 3.81 ft at 6:00AM Nov 26, 2023Observed: 3.82 ft at 6:15AM Nov 26, 2023Observed: 3.81 ft at 6:30AM Nov 26, 2023Highest Observation: 3.84 ft at 6:45AM Nov 26, 2023Observed: 3.82 ft at 7:00AM Nov 26, 2023Observed: 3.81 ft at 7:15AM Nov 26, 2023Observed: 3.82 ft at 7:30AM Nov 26, 2023Observed: 3.82 ft at 7:45AM Nov 26, 2023Observed: 3.82 ft at 8:00AM Nov 26, 2023Observed: 3.82 ft at 8:15AM Nov 26, 2023Observed: 3.81 ft at 8:30AM Nov 26, 2023Observed: 3.82 ft at 8:45AM Nov 26, 2023Observed: 3.83 ft at 9:00AM Nov 26, 2023Observed: 3.81 ft at 9:15AM Nov 26, 2023Observed: 3.79 ft at 9:30AM Nov 26, 2023Observed: 3.8 ft at 9:45AM Nov 26, 2023Observed: 3.79 ft at 10:00AM Nov 26, 2023Observed: 3.8 ft at 10:15AM Nov 26, 2023Observed: 3.79 ft at 10:30AM Nov 26, 2023Observed: 3.8 ft at 10:45AM Nov 26, 2023Observed: 3.79 ft at 11:00AM Nov 26, 2023Observed: 3.82 ft at 11:15AM Nov 26, 2023Observed: 3.81 ft at 11:30AM Nov 26, 2023Observed: 3.8 ft at 11:45AM Nov 26, 2023Observed: 3.81 ft at 12:00PM Nov 26, 2023Observed: 3.81 ft at 12:15PM Nov 26, 2023Observed: 3.81 ft at 12:30PM Nov 26, 2023Observed: 3.81 ft at 12:45PM Nov 26, 2023Observed: 3.81 ft at 1:00PM Nov 26, 2023Observed: 3.8 ft at 1:15PM Nov 26, 2023Observed: 3.8 ft at 1:30PM Nov 26, 2023Observed: 3.8 ft at 1:45PM Nov 26, 2023Observed: 3.79 ft at 2:00PM Nov 26, 2023Observed: 3.78 ft at 2:15PM Nov 26, 2023Observed: 3.81 ft at 2:30PM Nov 26, 2023Observed: 3.79 ft at 2:45PM Nov 26, 2023Observed: 3.78 ft at 3:00PM Nov 26, 2023Observed: 3.78 ft at 3:15PM Nov 26, 2023Observed: 3.79 ft at 3:30PM Nov 26, 2023Observed: 3.81 ft at 3:45PM Nov 26, 2023Observed: 3.79 ft at 4:00PM Nov 26, 2023Observed: 3.8 ft at 4:15PM Nov 26, 2023Observed: 3.79 ft at 4:30PM Nov 26, 2023Observed: 3.79 ft at 4:45PM Nov 26, 2023Observed: 3.77 ft at 5:00PM Nov 26, 2023Observed: 3.8 ft at 5:15PM Nov 26, 2023Observed: 3.77 ft at 5:30PM Nov 26, 2023Observed: 3.78 ft at 5:45PM Nov 26, 2023Observed: 3.78 ft at 6:00PM Nov 26, 2023Observed: 3.79 ft at 6:15PM Nov 26, 2023Observed: 3.79 ft at 6:30PM Nov 26, 2023Observed: 3.78 ft at 6:45PM Nov 26, 2023Observed: 3.75 ft at 7:00PM Nov 26, 2023Observed: 3.78 ft at 7:15PM Nov 26, 2023Observed: 3.78 ft at 7:30PM Nov 26, 2023Observed: 3.78 ft at 7:45PM Nov 26, 2023Observed: 3.78 ft at 8:00PM Nov 26, 2023Observed: 3.78 ft at 8:15PM Nov 26, 2023Observed: 3.77 ft at 8:30PM Nov 26, 2023Observed: 3.79 ft at 8:45PM Nov 26, 2023Observed: 3.78 ft at 9:00PM Nov 26, 2023Observed: 3.77 ft at 9:15PM Nov 26, 2023Observed: 3.77 ft at 9:30PM Nov 26, 2023Observed: 3.78 ft at 9:45PM Nov 26, 2023Observed: 3.77 ft at 10:00PM Nov 26, 2023Observed: 3.77 ft at 10:15PM Nov 26, 2023Observed: 3.78 ft at 10:30PM Nov 26, 2023Observed: 3.79 ft at 10:45PM Nov 26, 2023Observed: 3.78 ft at 11:00PM Nov 26, 2023Observed: 3.76 ft at 11:15PM Nov 26, 2023Observed: 3.77 ft at 11:30PM Nov 26, 2023Observed: 3.77 ft at 11:45PM Nov 26, 2023Observed: 3.76 ft at 12:00AM Nov 27, 2023Observed: 3.79 ft at 12:15AM Nov 27, 2023Observed: 3.78 ft at 12:30AM Nov 27, 2023Observed: 3.8 ft at 12:45AM Nov 27, 2023Observed: 3.79 ft at 1:00AM Nov 27, 2023Observed: 3.78 ft at 1:15AM Nov 27, 2023Observed: 3.78 ft at 1:30AM Nov 27, 2023Observed: 3.81 ft at 1:45AM Nov 27, 2023Observed: 3.8 ft at 2:00AM Nov 27, 2023Observed: 3.81 ft at 2:15AM Nov 27, 2023Observed: 3.81 ft at 2:30AM Nov 27, 2023Observed: 3.82 ft at 2:45AM Nov 27, 2023Observed: 3.8 ft at 3:00AM Nov 27, 2023Observed: 3.8 ft at 3:15AM Nov 27, 2023Observed: 3.83 ft at 3:30AM Nov 27, 2023Observed: 3.81 ft at 3:45AM Nov 27, 2023Observed: 3.8 ft at 4:00AM Nov 27, 2023Observed: 3.8 ft at 4:15AM Nov 27, 2023Observed: 3.81 ft at 4:30AM Nov 27, 2023Observed: 3.81 ft at 4:45AM Nov 27, 2023Observed: 3.82 ft at 5:00AM Nov 27, 2023Observed: 3.83 ft at 5:15AM Nov 27, 2023Observed: 3.81 ft at 5:30AM Nov 27, 2023Observed: 3.8 ft at 5:45AM Nov 27, 2023Observed: 3.81 ft at 6:00AM Nov 27, 2023Observed: 3.83 ft at 6:15AM Nov 27, 2023Observed: 3.81 ft at 6:30AM Nov 27, 2023Observed: 3.8 ft at 6:45AM Nov 27, 2023Observed: 3.79 ft at 7:00AM Nov 27, 2023Observed: 3.81 ft at 7:15AM Nov 27, 2023Observed: 3.8 ft at 7:30AM Nov 27, 2023Observed: 3.8 ft at 7:45AM Nov 27, 2023Observed: 3.81 ft at 8:00AM Nov 27, 2023Observed: 3.8 ft at 8:15AM Nov 27, 2023Observed: 3.8 ft at 8:30AM Nov 27, 2023Observed: 3.8 ft at 8:45AM Nov 27, 2023Observed: 3.8 ft at 9:00AM Nov 27, 2023Observed: 3.79 ft at 9:15AM Nov 27, 2023Observed: 3.8 ft at 9:30AM Nov 27, 2023Observed: 3.8 ft at 9:45AM Nov 27, 2023Observed: 3.81 ft at 10:00AM Nov 27, 2023Observed: 3.79 ft at 10:15AM Nov 27, 2023Observed: 3.81 ft at 10:30AM Nov 27, 2023Observed: 3.79 ft at 10:45AM Nov 27, 2023Observed: 3.8 ft at 11:00AM Nov 27, 2023Observed: 3.8 ft at 11:15AM Nov 27, 2023Observed: 3.79 ft at 11:30AM Nov 27, 2023Observed: 3.8 ft at 11:45AM Nov 27, 2023Observed: 3.81 ft at 12:00PM Nov 27, 2023Observed: 3.8 ft at 12:15PM Nov 27, 2023Observed: 3.78 ft at 12:30PM Nov 27, 2023Observed: 3.79 ft at 12:45PM Nov 27, 2023Observed: 3.8 ft at 1:00PM Nov 27, 2023Observed: 3.78 ft at 1:15PM Nov 27, 2023Observed: 3.79 ft at 1:30PM Nov 27, 2023Observed: 3.79 ft at 1:45PM Nov 27, 2023Observed: 3.78 ft at 2:00PM Nov 27, 2023Observed: 3.79 ft at 2:15PM Nov 27, 2023Observed: 3.79 ft at 2:30PM Nov 27, 2023Observed: 3.78 ft at 2:45PM Nov 27, 2023Observed: 3.78 ft at 3:00PM Nov 27, 2023Observed: 3.78 ft at 3:15PM Nov 27, 2023Observed: 3.77 ft at 3:30PM Nov 27, 2023Observed: 3.75 ft at 3:45PM Nov 27, 2023Observed: 3.8 ft at 4:00PM Nov 27, 2023Observed: 3.77 ft at 4:15PM Nov 27, 2023Observed: 3.76 ft at 4:30PM Nov 27, 2023Observed: 3.76 ft at 4:45PM Nov 27, 2023Observed: 3.76 ft at 5:00PM Nov 27, 2023Observed: 3.78 ft at 5:15PM Nov 27, 2023Observed: 3.78 ft at 5:30PM Nov 27, 2023Observed: 3.77 ft at 5:45PM Nov 27, 2023Observed: 3.76 ft at 6:00PM Nov 27, 2023Observed: 3.76 ft at 6:15PM Nov 27, 2023Observed: 3.74 ft at 6:30PM Nov 27, 2023Observed: 3.77 ft at 6:45PM Nov 27, 2023Observed: 3.75 ft at 7:00PM Nov 27, 2023Observed: 3.77 ft at 7:15PM Nov 27, 2023Observed: 3.77 ft at 7:30PM Nov 27, 2023Observed: 3.75 ft at 7:45PM Nov 27, 2023Observed: 3.78 ft at 8:00PM Nov 27, 2023Observed: 3.77 ft at 8:15PM Nov 27, 2023Observed: 3.78 ft at 8:30PM Nov 27, 2023Observed: 3.77 ft at 8:45PM Nov 27, 2023Observed: 3.79 ft at 9:00PM Nov 27, 2023Observed: 3.78 ft at 9:15PM Nov 27, 2023Observed: 3.81 ft at 9:30PM Nov 27, 2023Observed: 3.78 ft at 9:45PM Nov 27, 2023Observed: 3.77 ft at 10:00PM Nov 27, 2023Observed: 3.78 ft at 10:15PM Nov 27, 2023Observed: 3.77 ft at 10:30PM Nov 27, 2023Observed: 3.77 ft at 10:45PM Nov 27, 2023Observed: 3.77 ft at 11:00PM Nov 27, 2023Observed: 3.78 ft at 11:15PM Nov 27, 2023Observed: 3.78 ft at 11:30PM Nov 27, 2023Observed: 3.78 ft at 11:45PM Nov 27, 2023Observed: 3.78 ft at 12:00AM Nov 28, 2023Observed: 3.78 ft at 12:15AM Nov 28, 2023Observed: 3.79 ft at 12:30AM Nov 28, 2023Observed: 3.8 ft at 12:45AM Nov 28, 2023Observed: 3.79 ft at 1:00AM Nov 28, 2023Observed: 3.78 ft at 1:15AM Nov 28, 2023Observed: 3.8 ft at 1:30AM Nov 28, 2023Observed: 3.8 ft at 1:45AM Nov 28, 2023Observed: 3.78 ft at 2:00AM Nov 28, 2023Observed: 3.8 ft at 2:15AM Nov 28, 2023Observed: 3.82 ft at 2:30AM Nov 28, 2023Observed: 3.82 ft at 2:45AM Nov 28, 2023Observed: 3.8 ft at 3:00AM Nov 28, 2023Observed: 3.8 ft at 3:15AM Nov 28, 2023Observed: 3.8 ft at 3:30AM Nov 28, 2023Observed: 3.81 ft at 3:45AM Nov 28, 2023Observed: 3.8 ft at 4:00AM Nov 28, 2023Observed: 3.82 ft at 4:15AM Nov 28, 2023Observed: 3.81 ft at 4:30AM Nov 28, 2023Observed: 3.82 ft at 4:45AM Nov 28, 2023Observed: 3.8 ft at 5:00AM Nov 28, 2023Observed: 3.81 ft at 5:15AM Nov 28, 2023Observed: 3.83 ft at 5:30AM Nov 28, 2023Observed: 3.8 ft at 5:45AM Nov 28, 2023Observed: 3.82 ft at 6:00AM Nov 28, 2023Observed: 3.82 ft at 6:15AM Nov 28, 2023Observed: 3.78 ft at 6:30AM Nov 28, 2023Observed: 3.8 ft at 6:45AM Nov 28, 2023Observed: 3.8 ft at 7:00AM Nov 28, 2023Observed: 3.81 ft at 7:15AM Nov 28, 2023Observed: 3.79 ft at 7:30AM Nov 28, 2023Observed: 3.8 ft at 7:45AM Nov 28, 2023Observed: 3.78 ft at 8:00AM Nov 28, 2023Observed: 3.78 ft at 8:15AM Nov 28, 2023Observed: 3.79 ft at 8:30AM Nov 28, 2023Observed: 3.76 ft at 8:45AM Nov 28, 2023Observed: 3.78 ft at 9:00AM Nov 28, 2023Observed: 3.79 ft at 9:15AM Nov 28, 2023Observed: 3.78 ft at 9:30AM Nov 28, 2023Observed: 3.78 ft at 9:45AM Nov 28, 2023Observed: 3.77 ft at 10:00AM Nov 28, 2023Observed: 3.76 ft at 10:15AM Nov 28, 2023Observed: 3.77 ft at 10:30AM Nov 28, 2023Observed: 3.8 ft at 10:45AM Nov 28, 2023Observed: 3.78 ft at 11:00AM Nov 28, 2023Observed: 3.78 ft at 11:15AM Nov 28, 2023Observed: 3.76 ft at 11:30AM Nov 28, 2023Observed: 3.77 ft at 11:45AM Nov 28, 2023Observed: 3.8 ft at 12:00PM Nov 28, 2023Observed: 3.78 ft at 12:15PM Nov 28, 2023Observed: 3.77 ft at 12:30PM Nov 28, 2023Observed: 3.78 ft at 12:45PM Nov 28, 2023Observed: 3.77 ft at 1:00PM Nov 28, 2023Observed: 3.76 ft at 1:15PM Nov 28, 2023Observed: 3.8 ft at 1:30PM Nov 28, 2023Observed: 3.77 ft at 1:45PM Nov 28, 2023Observed: 3.74 ft at 2:00PM Nov 28, 2023Observed: 3.75 ft at 2:15PM Nov 28, 2023Observed: 3.8 ft at 2:30PM Nov 28, 2023Observed: 3.77 ft at 2:45PM Nov 28, 2023Observed: 3.75 ft at 3:00PM Nov 28, 2023Observed: 3.77 ft at 3:15PM Nov 28, 2023Observed: 3.76 ft at 3:30PM Nov 28, 2023Observed: 3.78 ft at 3:45PM Nov 28, 2023Observed: 3.78 ft at 4:00PM Nov 28, 2023Observed: 3.78 ft at 4:15PM Nov 28, 2023Observed: 3.78 ft at 4:30PM Nov 28, 2023Observed: 3.77 ft at 4:45PM Nov 28, 2023Observed: 3.78 ft at 5:00PM Nov 28, 2023Observed: 3.78 ft at 5:15PM Nov 28, 2023Observed: 3.77 ft at 5:30PM Nov 28, 2023Observed: 3.78 ft at 5:45PM Nov 28, 2023Observed: 3.78 ft at 6:00PM Nov 28, 2023Observed: 3.78 ft at 6:15PM Nov 28, 2023Observed: 3.78 ft at 6:30PM Nov 28, 2023Observed: 3.78 ft at 6:45PM Nov 28, 2023Observed: 3.76 ft at 7:00PM Nov 28, 2023Observed: 3.76 ft at 7:15PM Nov 28, 2023Observed: 3.76 ft at 7:30PM Nov 28, 2023Observed: 3.74 ft at 7:45PM Nov 28, 2023Observed: 3.75 ft at 8:00PM Nov 28, 2023Observed: 3.75 ft at 8:15PM Nov 28, 2023Observed: 3.77 ft at 8:30PM Nov 28, 2023Observed: 3.77 ft at 8:45PM Nov 28, 2023Observed: 3.77 ft at 9:00PM Nov 28, 2023Observed: 3.76 ft at 9:15PM Nov 28, 2023Observed: 3.75 ft at 9:30PM Nov 28, 2023Observed: 3.75 ft at 9:45PM Nov 28, 2023Observed: 3.76 ft at 10:00PM Nov 28, 2023Observed: 3.76 ft at 10:15PM Nov 28, 2023Observed: 3.74 ft at 10:30PM Nov 28, 2023Observed: 3.76 ft at 10:45PM Nov 28, 2023Observed: 3.77 ft at 11:00PM Nov 28, 2023Observed: 3.75 ft at 11:15PM Nov 28, 2023Observed: 3.76 ft at 11:30PM Nov 28, 2023Observed: 3.77 ft at 11:45PM Nov 28, 2023Observed: 3.75 ft at 12:00AM Nov 29, 2023Observed: 3.77 ft at 12:15AM Nov 29, 2023Observed: 3.75 ft at 12:30AM Nov 29, 2023Observed: 3.78 ft at 12:45AM Nov 29, 2023Observed: 3.79 ft at 2:00AM Nov 29, 2023Observed: 3.79 ft at 2:15AM Nov 29, 2023Observed: 3.78 ft at 2:30AM Nov 29, 2023Observed: 3.78 ft at 2:45AM Nov 29, 2023Observed: 3.78 ft at 3:00AM Nov 29, 2023Observed: 3.79 ft at 3:15AM Nov 29, 2023Observed: 3.77 ft at 3:30AM Nov 29, 2023Observed: 3.8 ft at 3:45AM Nov 29, 2023Observed: 3.78 ft at 4:00AM Nov 29, 2023Observed: 3.79 ft at 4:15AM Nov 29, 2023Observed: 3.79 ft at 4:30AM Nov 29, 2023Observed: 3.8 ft at 4:45AM Nov 29, 2023Observed: 3.82 ft at 5:00AM Nov 29, 2023Observed: 3.77 ft at 5:15AM Nov 29, 2023Observed: 3.8 ft at 5:30AM Nov 29, 2023Observed: 3.8 ft at 5:45AM Nov 29, 2023Observed: 3.8 ft at 6:00AM Nov 29, 2023Observed: 3.81 ft at 6:15AM Nov 29, 2023Observed: 3.79 ft at 6:30AM Nov 29, 2023Observed: 3.79 ft at 6:45AM Nov 29, 2023Observed: 3.79 ft at 7:00AM Nov 29, 2023Observed: 3.77 ft at 7:15AM Nov 29, 2023Observed: 3.79 ft at 7:30AM Nov 29, 2023Observed: 3.77 ft at 7:45AM Nov 29, 2023Observed: 3.79 ft at 8:00AM Nov 29, 2023Observed: 3.77 ft at 8:15AM Nov 29, 2023Observed: 3.79 ft at 8:30AM Nov 29, 2023Observed: 3.77 ft at 8:45AM Nov 29, 2023Observed: 3.77 ft at 9:00AM Nov 29, 2023Observed: 3.76 ft at 9:15AM Nov 29, 2023Observed: 3.79 ft at 9:30AM Nov 29, 2023Observed: 3.76 ft at 9:45AM Nov 29, 2023Observed: 3.76 ft at 10:00AM Nov 29, 2023Observed: 3.77 ft at 10:15AM Nov 29, 2023Observed: 3.75 ft at 10:30AM Nov 29, 2023Observed: 3.78 ft at 10:45AM Nov 29, 2023Observed: 3.78 ft at 11:00AM Nov 29, 2023Observed: 3.75 ft at 11:15AM Nov 29, 2023Observed: 3.77 ft at 11:30AM Nov 29, 2023Observed: 3.76 ft at 11:45AM Nov 29, 2023Observed: 3.76 ft at 12:00PM Nov 29, 2023Observed: 3.77 ft at 12:15PM Nov 29, 2023Observed: 3.79 ft at 12:30PM Nov 29, 2023Observed: 3.77 ft at 12:45PM Nov 29, 2023Observed: 3.76 ft at 1:00PM Nov 29, 2023Observed: 3.77 ft at 1:15PM Nov 29, 2023Observed: 3.77 ft at 1:30PM Nov 29, 2023Observed: 3.76 ft at 1:45PM Nov 29, 2023Observed: 3.77 ft at 2:00PM Nov 29, 2023Observed: 3.77 ft at 2:15PM Nov 29, 2023Observed: 3.74 ft at 2:30PM Nov 29, 2023Observed: 3.78 ft at 2:45PM Nov 29, 2023Observed: 3.75 ft at 3:00PM Nov 29, 2023Observed: 3.74 ft at 3:15PM Nov 29, 2023Observed: 3.76 ft at 3:30PM Nov 29, 2023Observed: 3.77 ft at 3:45PM Nov 29, 2023Observed: 3.74 ft at 5:00PM Nov 29, 2023Observed: 3.77 ft at 5:15PM Nov 29, 2023Observed: 3.77 ft at 5:30PM Nov 29, 2023Observed: 3.76 ft at 5:45PM Nov 29, 2023Observed: 3.77 ft at 6:00PM Nov 29, 2023Observed: 3.76 ft at 6:15PM Nov 29, 2023Observed: 3.76 ft at 6:30PM Nov 29, 2023Observed: 3.78 ft at 6:45PM Nov 29, 2023Observed: 3.76 ft at 7:00PM Nov 29, 2023Observed: 3.77 ft at 7:15PM Nov 29, 2023Observed: 3.78 ft at 7:30PM Nov 29, 2023Observed: 3.75 ft at 7:45PM Nov 29, 2023Observed: 3.77 ft at 8:00PM Nov 29, 2023Observed: 3.79 ft at 8:15PM Nov 29, 2023Observed: 3.78 ft at 8:30PM Nov 29, 2023Observed: 3.78 ft at 8:45PM Nov 29, 2023Observed: 3.77 ft at 9:00PM Nov 29, 2023Observed: 3.77 ft at 9:15PM Nov 29, 2023Observed: 3.78 ft at 9:30PM Nov 29, 2023Observed: 3.79 ft at 9:45PM Nov 29, 2023Observed: 3.78 ft at 10:00PM Nov 29, 2023Observed: 3.77 ft at 10:15PM Nov 29, 2023Observed: 3.76 ft at 10:30PM Nov 29, 2023Observed: 3.77 ft at 10:45PM Nov 29, 2023Observed: 3.78 ft at 11:00PM Nov 29, 2023Observed: 3.79 ft at 11:15PM Nov 29, 2023Observed: 3.77 ft at 11:30PM Nov 29, 2023Observed: 3.77 ft at 11:45PM Nov 29, 2023Observed: 3.8 ft at 12:00AM Nov 30, 2023Observed: 3.81 ft at 12:15AM Nov 30, 2023Observed: 3.79 ft at 12:30AM Nov 30, 2023Observed: 3.79 ft at 12:45AM Nov 30, 2023Observed: 3.8 ft at 1:00AM Nov 30, 2023Observed: 3.79 ft at 1:15AM Nov 30, 2023Observed: 3.8 ft at 1:30AM Nov 30, 2023Observed: 3.81 ft at 1:45AM Nov 30, 2023Observed: 3.79 ft at 2:00AM Nov 30, 2023Observed: 3.82 ft at 2:15AM Nov 30, 2023Observed: 3.81 ft at 2:30AM Nov 30, 2023Observed: 3.77 ft at 2:45AM Nov 30, 2023Observed: 3.79 ft at 3:00AM Nov 30, 2023Observed: 3.78 ft at 3:15AM Nov 30, 2023Observed: 3.82 ft at 3:30AM Nov 30, 2023Observed: 3.81 ft at 3:45AM Nov 30, 2023Observed: 3.83 ft at 4:00AM Nov 30, 2023Observed: 3.82 ft at 4:15AM Nov 30, 2023Observed: 3.82 ft at 4:30AM Nov 30, 2023Observed: 3.81 ft at 4:45AM Nov 30, 2023Observed: 3.81 ft at 5:00AM Nov 30, 2023Observed: 3.83 ft at 5:15AM Nov 30, 2023Observed: 3.82 ft at 5:30AM Nov 30, 2023Observed: 3.81 ft at 5:45AM Nov 30, 2023Highest Observation: 3.84 ft at 6:00AM Nov 30, 2023Highest Observation: 3.84 ft at 6:15AM Nov 30, 2023Observed: 3.83 ft at 6:30AM Nov 30, 2023Observed: 3.82 ft at 6:45AM Nov 30, 2023Observed: 3.83 ft at 7:00AM Nov 30, 2023Observed: 3.81 ft at 7:15AM Nov 30, 2023Observed: 3.8 ft at 7:30AM Nov 30, 2023Observed: 3.82 ft at 7:45AM Nov 30, 2023Highest Observation: 3.84 ft at 8:00AM Nov 30, 2023Observed: 3.83 ft at 8:15AM Nov 30, 2023Observed: 3.81 ft at 8:30AM Nov 30, 2023Observed: 3.82 ft at 8:45AM Nov 30, 2023Observed: 3.82 ft at 9:00AM Nov 30, 2023Observed: 3.81 ft at 9:15AM Nov 30, 2023Observed: 3.81 ft at 9:30AM Nov 30, 2023Observed: 3.8 ft at 9:45AM Nov 30, 2023Observed: 3.8 ft at 10:00AM Nov 30, 2023Observed: 3.79 ft at 10:15AM Nov 30, 2023Observed: 3.79 ft at 10:30AM Nov 30, 2023Observed: 3.81 ft at 10:45AM Nov 30, 2023Observed: 3.8 ft at 11:00AM Nov 30, 2023Observed: 3.81 ft at 11:15AM Nov 30, 2023Observed: 3.83 ft at 11:30AM Nov 30, 2023Observed: 3.82 ft at 11:45AM Nov 30, 2023Observed: 3.81 ft at 12:00PM Nov 30, 2023Observed: 3.81 ft at 12:15PM Nov 30, 2023Observed: 3.81 ft at 12:30PM Nov 30, 2023Observed: 3.8 ft at 12:45PM Nov 30, 2023Observed: 3.82 ft at 1:00PM Nov 30, 2023Observed: 3.82 ft at 1:15PM Nov 30, 2023Observed: 3.78 ft at 1:30PM Nov 30, 2023Observed: 3.79 ft at 1:45PM Nov 30, 2023Observed: 3.8 ft at 2:00PM Nov 30, 2023Observed: 3.8 ft at 2:15PM Nov 30, 2023Observed: 3.79 ft at 2:30PM Nov 30, 2023Observed: 3.8 ft at 2:45PM Nov 30, 2023Observed: 3.79 ft at 3:00PM Nov 30, 2023Observed: 3.81 ft at 3:15PM Nov 30, 2023Observed: 3.81 ft at 3:30PM Nov 30, 2023Observed: 3.77 ft at 3:45PM Nov 30, 2023Observed: 3.79 ft at 4:00PM Nov 30, 2023Observed: 3.79 ft at 4:15PM Nov 30, 2023Observed: 3.8 ft at 4:30PM Nov 30, 2023Observed: 3.81 ft at 4:45PM Nov 30, 2023Observed: 3.81 ft at 5:00PM Nov 30, 2023Observed: 3.8 ft at 5:15PM Nov 30, 2023Observed: 3.81 ft at 5:30PM Nov 30, 2023Observed: 3.81 ft at 5:45PM Nov 30, 2023Observed: 3.83 ft at 6:00PM Nov 30, 2023Observed: 3.82 ft at 6:15PM Nov 30, 2023Observed: 3.82 ft at 6:30PM Nov 30, 2023Observed: 3.82 ft at 6:45PM Nov 30, 2023Observed: 3.83 ft at 7:00PM Nov 30, 2023Observed: 3.81 ft at 7:15PM Nov 30, 2023Observed: 3.8 ft at 7:30PM Nov 30, 2023Observed: 3.82 ft at 7:45PM Nov 30, 2023Observed: 3.83 ft at 8:00PM Nov 30, 2023Observed: 3.82 ft at 8:15PM Nov 30, 2023Observed: 3.82 ft at 8:30PM Nov 30, 2023Highest Observation: 3.84 ft at 8:45PM Nov 30, 2023Observed: 3.82 ft at 9:00PM Nov 30, 2023Highest Observation: 3.84 ft at 9:15PM Nov 30, 2023Observed: 3.82 ft at 9:30PM Nov 30, 2023Observed: 3.82 ft at 9:45PM Nov 30, 2023Observed: 3.83 ft at 10:00PM Nov 30, 2023Observed: 3.81 ft at 10:15PM Nov 30, 2023Observed: 3.82 ft at 10:30PM Nov 30, 2023Highest Observation: 3.84 ft at 10:45PM Nov 30, 2023Observed: 3.82 ft at 11:00PM Nov 30, 2023Highest Observation: 3.84 ft at 11:15PM Nov 30, 2023Observed: 3.82 ft at 11:30PM Nov 30, 2023Observed: 3.83 ft at 11:45PM Nov 30, 2023Observed: 3.82 ft at 12:00AM Dec 01, 2023Observed: 3.83 ft at 12:15AM Dec 01, 2023Observed: 3.82 ft at 12:30AM Dec 01, 2023Highest Observation: 3.84 ft at 12:45AM Dec 01, 2023Highest Forecast: 3.9 ft 3:00AM Dec 01, 2023Highest Forecast: 3.9 ft 6:00AM Dec 01, 2023Highest Forecast: 3.9 ft 9:00AM Dec 01, 2023Forecast: 3.8 ft 12:00PM Dec 01, 2023Forecast: 3.8 ft 3:00PM Dec 01, 2023Forecast: 3.8 ft 6:00PM Dec 01, 2023Forecast: 3.8 ft 9:00PM Dec 01, 2023Forecast: 3.8 ft 12:00AM Dec 02, 2023Forecast: 3.8 ft 3:00AM Dec 02, 2023Forecast: 3.8 ft 6:00AM Dec 02, 2023Forecast: 3.8 ft 9:00AM Dec 02, 2023Forecast: 3.8 ft 12:00PM Dec 02, 2023Forecast: 3.8 ft 3:00PM Dec 02, 2023Forecast: 3.8 ft 6:00PM Dec 02, 2023Forecast: 3.8 ft 9:00PM Dec 02, 2023Forecast: 3.8 ft 12:00AM Dec 03, 2023Forecast: 3.8 ft 3:00AM Dec 03, 2023Forecast: 3.8 ft 6:00AM Dec 03, 2023Highest Forecast: 3.9 ft 9:00AM Dec 03, 2023Highest Forecast: 3.9 ft 12:00PM Dec 03, 2023Highest Forecast: 3.9 ft 3:00PM Dec 03, 2023Highest Forecast: 3.9 ft 6:00PM Dec 03, 2023Highest Forecast: 3.9 ft 9:00PM Dec 03, 2023Highest Forecast: 3.9 ft 12:00AM Dec 04, 2023Highest Forecast: 3.9 ft 3:00AM Dec 04, 2023Highest Forecast: 3.9 ft 6:00AM Dec 04, 2023Highest Forecast: 3.9 ft 9:00AM Dec 04, 2023Highest Forecast: 3.9 ft 12:00PM Dec 04, 2023Highest Forecast: 3.9 ft 3:00PM Dec 04, 2023Highest Forecast: 3.9 ft 6:00PM Dec 04, 2023Highest Forecast: 3.9 ft 9:00PM Dec 04, 2023Highest Forecast: 3.9 ft 12:00AM Dec 05, 2023Highest Forecast: 3.9 ft 3:00AM Dec 05, 2023Highest Forecast: 3.9 ft 6:00AM Dec 05, 2023Highest Forecast: 3.9 ft 9:00AM Dec 05, 2023USGS--Water Resources of the United StatesLLGT2(plotting HGIRG) Graph Created (1:34AM Dec 1, 2023)ObservedForecast (issued 9:07AM Nov 30)Latest observed value: 3.84 ft at 12:45 AM CST 1-Dec-2023. Flood Stage is 20 ft
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Tabular Data (UTC)
Tabular Data (CST)
XML Data
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Datum: NGVD29
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the San Marcos River at Luling are issued routinely year-round.

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Upstream Gauge - near Martindale Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 30
Moderate Flood Stage: 24
Flood Stage: 20
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 41.85 ft on 10/18/1998
(2) 40.40 ft on 01/01/1869
(3) 37.10 ft on 05/29/1929
(4) 36.58 ft on 05/25/2015
(5) 36.27 ft on 10/31/2015
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 30.56 ft on 10/15/2021
(2) 30.09 ft on 08/27/2017
(3) 36.27 ft on 10/31/2015
(4) 27.79 ft on 05/31/2015
(5) 36.58 ft on 05/25/2015
Show More Recent Crests

(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:16
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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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40 Devastating flooding reaches the lowest homes in Luling north and northeast of the golf course. All of Palmetto State Park at Ottine is under many feet of water. Water is nearly to the roof of the pavillion building. The Warm Springs rehabilitation hospital in Ottine has several feet of water in it.
36 Palmetto State Park is under water except for the headquarters building. The pavillion has six feet of water in it. Much of the golf course in Luling is underwater. Lowest homes northeast of the golf course are threatened. The Warm Springs rehabilitation hospital in Ottine has several feet of water in it.
32 Palmetto State Park is under water with water in the large pavillion building. There is extensive damage to roads, signs, camp sites and the pavillion building. Livestock are cut off and drowned in the flood plain below San Marcos to Gonzales. The lowest sections of the golf course in Luling are under water.
30 Major flooding reaches nearly all of Palmetto State Park with extensive damage to park facilities, signs, fences and roads. Flow is to the slab of the large pavillion building. Livestock in the flood plain below San Marcos to Gonzales are cut off. Lowest sections of the golf course in Luling flood.
28 Most of Palmetto State Park is flooded including Farm to Market 2091 through the park. Flow is approaching the large park pavillion building. All park visitors are evacuated. At Highway 80 in Luling flow is well into the flood plain and approaching the golf course. Livestock are cut off in the flood plain below San Marcos to Gonzales.
24 Moderate flooding in Palmetto State Park five miles below Luling inundates many park facilities and roads.
20 Minor lowland flooding reaches lowest camp sites and several sections of park roads at Palmetto State Park five miles below Luling.
16 Over bank flow reaches lowest areas of the flood plain with no significant damage.
About This Location Collapse

Latitude: 29.666111° N, Longitude: 97.650556° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 20 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 29 322.05 ft 342.05 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
Austin/San Antonio Weather Forecast Office
2090 Airport Road
New Braunfels, TX 78130
(830) 629-0130
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