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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 March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

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Hydrograph River at a Glance Download
Frio River at Tilden Stage (ft)Flow (cfs)Observed: 1.54 ft at 6:30AM Sep 19, 2023Observed: 1.54 ft at 6:45AM Sep 19, 2023Observed: 1.54 ft at 7:00AM Sep 19, 2023Observed: 1.54 ft at 7:15AM Sep 19, 2023Observed: 1.54 ft at 7:30AM Sep 19, 2023Observed: 1.54 ft at 7:45AM Sep 19, 2023Observed: 1.54 ft at 8:00AM Sep 19, 2023Observed: 1.54 ft at 8:15AM Sep 19, 2023Observed: 1.54 ft at 8:30AM Sep 19, 2023Observed: 1.54 ft at 8:45AM Sep 19, 2023Observed: 1.54 ft at 9:00AM Sep 19, 2023Observed: 1.54 ft at 9:15AM Sep 19, 2023Observed: 1.54 ft at 9:30AM Sep 19, 2023Observed: 1.54 ft at 9:45AM Sep 19, 2023Observed: 1.54 ft at 10:00AM Sep 19, 2023Observed: 1.54 ft at 10:15AM Sep 19, 2023Observed: 1.54 ft at 10:30AM Sep 19, 2023Observed: 1.54 ft at 10:45AM Sep 19, 2023Observed: 1.54 ft at 11:00AM Sep 19, 2023Observed: 1.54 ft at 11:15AM Sep 19, 2023Observed: 1.54 ft at 11:30AM Sep 19, 2023Observed: 1.54 ft at 11:45AM Sep 19, 2023Observed: 1.54 ft at 12:00PM Sep 19, 2023Highest Observation: 1.55 ft at 12:15PM Sep 19, 2023Observed: 1.54 ft at 12:30PM Sep 19, 2023Observed: 1.54 ft at 12:45PM Sep 19, 2023Observed: 1.54 ft at 1:00PM Sep 19, 2023Observed: 1.54 ft at 1:15PM Sep 19, 2023Observed: 1.54 ft at 1:30PM Sep 19, 2023Observed: 1.54 ft at 1:45PM Sep 19, 2023Observed: 1.54 ft at 2:00PM Sep 19, 2023Observed: 1.54 ft at 2:15PM Sep 19, 2023Observed: 1.54 ft at 2:30PM Sep 19, 2023Observed: 1.54 ft at 2:45PM Sep 19, 2023Observed: 1.54 ft at 3:00PM Sep 19, 2023Observed: 1.54 ft at 3:15PM Sep 19, 2023Observed: 1.54 ft at 3:30PM Sep 19, 2023Observed: 1.54 ft at 3:45PM Sep 19, 2023Observed: 1.54 ft at 4:00PM Sep 19, 2023Observed: 1.54 ft at 4:15PM Sep 19, 2023Observed: 1.54 ft at 4:30PM Sep 19, 2023Observed: 1.54 ft at 4:45PM Sep 19, 2023Observed: 1.54 ft at 5:00PM Sep 19, 2023Observed: 1.54 ft at 5:15PM Sep 19, 2023Observed: 1.54 ft at 5:30PM Sep 19, 2023Observed: 1.54 ft at 5:45PM Sep 19, 2023Observed: 1.54 ft at 6:00PM Sep 19, 2023Observed: 1.54 ft at 6:15PM Sep 19, 2023Observed: 1.54 ft at 6:30PM Sep 19, 2023Observed: 1.54 ft at 6:45PM Sep 19, 2023Observed: 1.54 ft at 7:00PM Sep 19, 2023Observed: 1.54 ft at 7:15PM Sep 19, 2023Observed: 1.54 ft at 7:30PM Sep 19, 2023Observed: 1.54 ft at 7:45PM Sep 19, 2023Observed: 1.54 ft at 8:00PM Sep 19, 2023Observed: 1.54 ft at 8:15PM Sep 19, 2023Observed: 1.54 ft at 8:30PM Sep 19, 2023Observed: 1.54 ft at 8:45PM Sep 19, 2023Observed: 1.54 ft at 9:00PM Sep 19, 2023Observed: 1.54 ft at 9:15PM Sep 19, 2023Observed: 1.54 ft at 9:30PM Sep 19, 2023Observed: 1.54 ft at 9:45PM Sep 19, 2023Observed: 1.54 ft at 10:00PM Sep 19, 2023Observed: 1.54 ft at 10:15PM Sep 19, 2023Observed: 1.54 ft at 10:30PM Sep 19, 2023Observed: 1.54 ft at 10:45PM Sep 19, 2023Observed: 1.54 ft at 11:00PM Sep 19, 2023Observed: 1.54 ft at 11:15PM Sep 19, 2023Observed: 1.54 ft at 11:30PM Sep 19, 2023Observed: 1.54 ft at 11:45PM Sep 19, 2023Observed: 1.54 ft at 12:00AM Sep 20, 2023Observed: 1.54 ft at 12:15AM Sep 20, 2023Observed: 1.54 ft at 12:30AM Sep 20, 2023Observed: 1.54 ft at 12:45AM Sep 20, 2023Observed: 1.54 ft at 1:00AM Sep 20, 2023Observed: 1.54 ft at 1:15AM Sep 20, 2023Observed: 1.54 ft at 1:30AM Sep 20, 2023Observed: 1.54 ft at 1:45AM Sep 20, 2023Observed: 1.54 ft at 2:00AM Sep 20, 2023Observed: 1.54 ft at 2:15AM Sep 20, 2023Observed: 1.54 ft at 2:30AM Sep 20, 2023Observed: 1.54 ft at 2:45AM Sep 20, 2023Observed: 1.54 ft at 3:00AM Sep 20, 2023Observed: 1.54 ft at 3:15AM Sep 20, 2023Observed: 1.54 ft at 3:30AM Sep 20, 2023Observed: 1.54 ft at 3:45AM Sep 20, 2023Observed: 1.54 ft at 4:00AM Sep 20, 2023Observed: 1.54 ft at 4:15AM Sep 20, 2023Observed: 1.54 ft at 4:30AM Sep 20, 2023Observed: 1.54 ft at 4:45AM Sep 20, 2023Observed: 1.54 ft at 5:00AM Sep 20, 2023Observed: 1.54 ft at 5:15AM Sep 20, 2023Observed: 1.54 ft at 5:30AM Sep 20, 2023Observed: 1.54 ft at 5:45AM Sep 20, 2023Observed: 1.54 ft at 6:00AM Sep 20, 2023Observed: 1.54 ft at 6:15AM Sep 20, 2023Observed: 1.54 ft at 6:30AM Sep 20, 2023Observed: 1.54 ft at 6:45AM Sep 20, 2023Observed: 1.54 ft at 7:00AM Sep 20, 2023Observed: 1.54 ft at 7:15AM Sep 20, 2023Observed: 1.54 ft at 7:30AM Sep 20, 2023Observed: 1.54 ft at 7:45AM Sep 20, 2023Observed: 1.54 ft at 8:00AM Sep 20, 2023Observed: 1.54 ft at 8:15AM Sep 20, 2023Observed: 1.54 ft at 8:30AM Sep 20, 2023Observed: 1.54 ft at 8:45AM Sep 20, 2023Observed: 1.54 ft at 9:00AM Sep 20, 2023Observed: 1.54 ft at 9:15AM Sep 20, 2023Observed: 1.54 ft at 9:30AM Sep 20, 2023Observed: 1.54 ft at 9:45AM Sep 20, 2023Observed: 1.54 ft at 10:00AM Sep 20, 2023Observed: 1.54 ft at 10:15AM Sep 20, 2023Observed: 1.54 ft at 10:30AM Sep 20, 2023Observed: 1.54 ft at 10:45AM Sep 20, 2023Observed: 1.54 ft at 11:00AM Sep 20, 2023Observed: 1.54 ft at 11:15AM Sep 20, 2023Observed: 1.54 ft at 11:30AM Sep 20, 2023Observed: 1.54 ft at 11:45AM Sep 20, 2023Observed: 1.54 ft at 12:00PM Sep 20, 2023Observed: 1.54 ft at 12:15PM Sep 20, 2023Observed: 1.54 ft at 12:30PM Sep 20, 2023Observed: 1.54 ft at 12:45PM Sep 20, 2023Observed: 1.54 ft at 1:00PM Sep 20, 2023Observed: 1.54 ft at 1:15PM Sep 20, 2023Observed: 1.54 ft at 1:30PM Sep 20, 2023Observed: 1.54 ft at 1:45PM Sep 20, 2023Observed: 1.54 ft at 2:00PM Sep 20, 2023Observed: 1.54 ft at 2:15PM Sep 20, 2023Observed: 1.54 ft at 2:30PM Sep 20, 2023Observed: 1.54 ft at 2:45PM Sep 20, 2023Observed: 1.54 ft at 3:00PM Sep 20, 2023Observed: 1.54 ft at 3:15PM Sep 20, 2023Observed: 1.54 ft at 3:30PM Sep 20, 2023Observed: 1.54 ft at 3:45PM Sep 20, 2023Observed: 1.54 ft at 4:00PM Sep 20, 2023Observed: 1.54 ft at 4:15PM Sep 20, 2023Observed: 1.54 ft at 5:30PM Sep 20, 2023Observed: 1.54 ft at 5:45PM Sep 20, 2023Observed: 1.54 ft at 6:00PM Sep 20, 2023Observed: 1.54 ft at 6:15PM Sep 20, 2023Observed: 1.54 ft at 6:30PM Sep 20, 2023Observed: 1.54 ft at 6:45PM Sep 20, 2023Observed: 1.54 ft at 7:00PM Sep 20, 2023Observed: 1.54 ft at 7:15PM Sep 20, 2023Observed: 1.54 ft at 7:30PM Sep 20, 2023Observed: 1.54 ft at 7:45PM Sep 20, 2023Observed: 1.54 ft at 8:00PM Sep 20, 2023Observed: 1.54 ft at 8:15PM Sep 20, 2023Observed: 1.54 ft at 8:30PM Sep 20, 2023Observed: 1.54 ft at 8:45PM Sep 20, 2023Observed: 1.54 ft at 9:00PM Sep 20, 2023Observed: 1.54 ft at 9:15PM Sep 20, 2023Observed: 1.54 ft at 9:30PM Sep 20, 2023Observed: 1.54 ft at 9:45PM Sep 20, 2023Observed: 1.54 ft at 10:00PM Sep 20, 2023Observed: 1.54 ft at 10:15PM Sep 20, 2023Observed: 1.54 ft at 10:30PM Sep 20, 2023Observed: 1.54 ft at 10:45PM Sep 20, 2023Observed: 1.54 ft at 11:00PM Sep 20, 2023Observed: 1.54 ft at 11:15PM Sep 20, 2023Observed: 1.54 ft at 11:30PM Sep 20, 2023Observed: 1.54 ft at 11:45PM Sep 20, 2023Observed: 1.54 ft at 12:00AM Sep 21, 2023Observed: 1.54 ft at 12:15AM Sep 21, 2023Observed: 1.54 ft at 1:30AM Sep 21, 2023Observed: 1.54 ft at 1:45AM Sep 21, 2023Observed: 1.54 ft at 2:00AM Sep 21, 2023Observed: 1.54 ft at 2:15AM Sep 21, 2023Observed: 1.54 ft at 2:30AM Sep 21, 2023Observed: 1.54 ft at 2:45AM Sep 21, 2023Observed: 1.54 ft at 3:00AM Sep 21, 2023Observed: 1.54 ft at 3:15AM Sep 21, 2023Observed: 1.54 ft at 3:30AM Sep 21, 2023Observed: 1.54 ft at 3:45AM Sep 21, 2023Observed: 1.54 ft at 4:00AM Sep 21, 2023Observed: 1.54 ft at 4:15AM Sep 21, 2023Observed: 1.54 ft at 4:30AM Sep 21, 2023Observed: 1.54 ft at 4:45AM Sep 21, 2023Observed: 1.54 ft at 5:00AM Sep 21, 2023Observed: 1.54 ft at 5:15AM Sep 21, 2023Observed: 1.54 ft at 5:30AM Sep 21, 2023Observed: 1.54 ft at 5:45AM Sep 21, 2023Observed: 1.54 ft at 6:00AM Sep 21, 2023Observed: 1.54 ft at 6:15AM Sep 21, 2023Observed: 1.54 ft at 6:30AM Sep 21, 2023Observed: 1.54 ft at 6:45AM Sep 21, 2023Observed: 1.54 ft at 7:00AM Sep 21, 2023Observed: 1.54 ft at 7:15AM Sep 21, 2023Observed: 1.54 ft at 7:30AM Sep 21, 2023Observed: 1.54 ft at 7:45AM Sep 21, 2023Observed: 1.54 ft at 8:00AM Sep 21, 2023Observed: 1.54 ft at 8:15AM Sep 21, 2023Observed: 1.54 ft at 8:30AM Sep 21, 2023Observed: 1.54 ft at 8:45AM Sep 21, 2023Observed: 1.54 ft at 9:00AM Sep 21, 2023Observed: 1.54 ft at 9:15AM Sep 21, 2023Observed: 1.54 ft at 9:30AM Sep 21, 2023Observed: 1.54 ft at 9:45AM Sep 21, 2023Observed: 1.54 ft at 10:00AM Sep 21, 2023Observed: 1.54 ft at 10:15AM Sep 21, 2023Observed: 1.54 ft at 10:30AM Sep 21, 2023Observed: 1.54 ft at 10:45AM Sep 21, 2023Observed: 1.54 ft at 11:00AM Sep 21, 2023Observed: 1.54 ft at 11:15AM Sep 21, 2023Observed: 1.54 ft at 11:30AM Sep 21, 2023Observed: 1.54 ft at 11:45AM Sep 21, 2023Observed: 1.54 ft at 12:00PM Sep 21, 2023Observed: 1.54 ft at 12:15PM Sep 21, 2023Observed: 1.54 ft at 12:30PM Sep 21, 2023Observed: 1.54 ft at 12:45PM Sep 21, 2023Observed: 1.54 ft at 1:00PM Sep 21, 2023Observed: 1.54 ft at 1:15PM Sep 21, 2023Observed: 1.54 ft at 1:30PM Sep 21, 2023Observed: 1.54 ft at 1:45PM Sep 21, 2023Observed: 1.54 ft at 2:00PM Sep 21, 2023Observed: 1.54 ft at 2:15PM Sep 21, 2023Observed: 1.54 ft at 3:30PM Sep 21, 2023Observed: 1.54 ft at 3:45PM Sep 21, 2023Observed: 1.54 ft at 4:00PM Sep 21, 2023Observed: 1.54 ft at 4:15PM Sep 21, 2023Observed: 1.54 ft at 4:30PM Sep 21, 2023Observed: 1.54 ft at 4:45PM Sep 21, 2023Observed: 1.54 ft at 5:00PM Sep 21, 2023Observed: 1.54 ft at 5:15PM Sep 21, 2023Observed: 1.54 ft at 5:30PM Sep 21, 2023Observed: 1.54 ft at 5:45PM Sep 21, 2023Observed: 1.54 ft at 6:00PM Sep 21, 2023Observed: 1.54 ft at 6:15PM Sep 21, 2023Observed: 1.54 ft at 7:30PM Sep 21, 2023Observed: 1.54 ft at 7:45PM Sep 21, 2023Observed: 1.54 ft at 8:00PM Sep 21, 2023Observed: 1.54 ft at 8:15PM Sep 21, 2023Observed: 1.54 ft at 8:30PM Sep 21, 2023Observed: 1.54 ft at 8:45PM Sep 21, 2023Observed: 1.54 ft at 9:00PM Sep 21, 2023Observed: 1.54 ft at 9:15PM Sep 21, 2023Observed: 1.54 ft at 9:30PM Sep 21, 2023Observed: 1.54 ft at 9:45PM Sep 21, 2023Observed: 1.54 ft at 10:00PM Sep 21, 2023Observed: 1.54 ft at 10:15PM Sep 21, 2023Observed: 1.54 ft at 10:30PM Sep 21, 2023Observed: 1.54 ft at 10:45PM Sep 21, 2023Observed: 1.54 ft at 11:00PM Sep 21, 2023Observed: 1.54 ft at 11:15PM Sep 21, 2023Observed: 1.54 ft at 11:30PM Sep 21, 2023Observed: 1.54 ft at 11:45PM Sep 21, 2023Observed: 1.54 ft at 12:00AM Sep 22, 2023Observed: 1.54 ft at 12:15AM Sep 22, 2023Observed: 1.54 ft at 12:30AM Sep 22, 2023Observed: 1.54 ft at 12:45AM Sep 22, 2023Observed: 1.54 ft at 1:00AM Sep 22, 2023Observed: 1.54 ft at 1:15AM Sep 22, 2023Observed: 1.54 ft at 1:30AM Sep 22, 2023Observed: 1.54 ft at 1:45AM Sep 22, 2023Observed: 1.54 ft at 2:00AM Sep 22, 2023Observed: 1.54 ft at 2:15AM Sep 22, 2023Observed: 1.54 ft at 2:30AM Sep 22, 2023Observed: 1.54 ft at 2:45AM Sep 22, 2023Observed: 1.54 ft at 3:00AM Sep 22, 2023Observed: 1.54 ft at 3:15AM Sep 22, 2023Observed: 1.54 ft at 3:30AM Sep 22, 2023Observed: 1.54 ft at 3:45AM Sep 22, 2023Observed: 1.54 ft at 4:00AM Sep 22, 2023Observed: 1.54 ft at 4:15AM Sep 22, 2023Observed: 1.54 ft at 4:30AM Sep 22, 2023Observed: 1.54 ft at 4:45AM Sep 22, 2023Observed: 1.54 ft at 5:00AM Sep 22, 2023Observed: 1.54 ft at 5:15AM Sep 22, 2023Observed: 1.54 ft at 5:30AM Sep 22, 2023Observed: 1.54 ft at 5:45AM Sep 22, 2023Observed: 1.54 ft at 6:00AM Sep 22, 2023Observed: 1.54 ft at 6:15AM Sep 22, 2023Observed: 1.54 ft at 6:30AM Sep 22, 2023Observed: 1.54 ft at 6:45AM Sep 22, 2023Observed: 1.54 ft at 7:00AM Sep 22, 2023Observed: 1.54 ft at 7:15AM Sep 22, 2023Observed: 1.54 ft at 7:30AM Sep 22, 2023Observed: 1.54 ft at 7:45AM Sep 22, 2023Observed: 1.54 ft at 8:00AM Sep 22, 2023Observed: 1.54 ft at 8:15AM Sep 22, 2023Observed: 1.54 ft at 8:30AM Sep 22, 2023Observed: 1.54 ft at 8:45AM Sep 22, 2023Observed: 1.54 ft at 9:00AM Sep 22, 2023Observed: 1.54 ft at 9:15AM Sep 22, 2023Observed: 1.54 ft at 9:30AM Sep 22, 2023Observed: 1.54 ft at 9:45AM Sep 22, 2023Observed: 1.54 ft at 10:00AM Sep 22, 2023Observed: 1.54 ft at 10:15AM Sep 22, 2023Observed: 1.54 ft at 10:30AM Sep 22, 2023Observed: 1.54 ft at 10:45AM Sep 22, 2023Observed: 1.54 ft at 11:00AM Sep 22, 2023Observed: 1.54 ft at 11:15AM Sep 22, 2023Observed: 1.54 ft at 11:30AM Sep 22, 2023Observed: 1.54 ft at 11:45AM Sep 22, 2023Observed: 1.54 ft at 12:00PM Sep 22, 2023Observed: 1.54 ft at 12:15PM Sep 22, 2023Observed: 1.54 ft at 12:30PM Sep 22, 2023Observed: 1.54 ft at 12:45PM Sep 22, 2023Observed: 1.54 ft at 1:00PM Sep 22, 2023Observed: 1.54 ft at 1:15PM Sep 22, 2023Observed: 1.54 ft at 1:30PM Sep 22, 2023Observed: 1.54 ft at 1:45PM Sep 22, 2023Observed: 1.54 ft at 2:00PM Sep 22, 2023Observed: 1.54 ft at 2:15PM Sep 22, 2023Observed: 1.54 ft at 3:30PM Sep 22, 2023Observed: 1.54 ft at 3:45PM Sep 22, 2023Observed: 1.54 ft at 4:00PM Sep 22, 2023Observed: 1.54 ft at 4:15PM Sep 22, 2023Observed: 1.54 ft at 4:30PM Sep 22, 2023Observed: 1.54 ft at 4:45PM Sep 22, 2023Observed: 1.54 ft at 5:00PM Sep 22, 2023Observed: 1.54 ft at 5:15PM Sep 22, 2023Observed: 1.54 ft at 5:30PM Sep 22, 2023Observed: 1.54 ft at 5:45PM Sep 22, 2023Observed: 1.54 ft at 6:00PM Sep 22, 2023Observed: 1.54 ft at 6:15PM Sep 22, 2023Observed: 1.54 ft at 6:30PM Sep 22, 2023Observed: 1.54 ft at 6:45PM Sep 22, 2023Observed: 1.54 ft at 7:00PM Sep 22, 2023Observed: 1.54 ft at 7:15PM Sep 22, 2023Observed: 1.54 ft at 7:30PM Sep 22, 2023Observed: 1.54 ft at 7:45PM Sep 22, 2023Observed: 1.54 ft at 8:00PM Sep 22, 2023Observed: 1.54 ft at 8:15PM Sep 22, 2023Observed: 1.54 ft at 8:30PM Sep 22, 2023Observed: 1.54 ft at 8:45PM Sep 22, 2023Observed: 1.54 ft at 9:00PM Sep 22, 2023Observed: 1.54 ft at 9:15PM Sep 22, 2023Observed: 1.54 ft at 9:30PM Sep 22, 2023Observed: 1.54 ft at 9:45PM Sep 22, 2023Observed: 1.54 ft at 10:00PM Sep 22, 2023Observed: 1.54 ft at 10:15PM Sep 22, 2023Observed: 1.54 ft at 10:30PM Sep 22, 2023Observed: 1.54 ft at 10:45PM Sep 22, 2023Observed: 1.54 ft at 11:00PM Sep 22, 2023Observed: 1.54 ft at 11:15PM Sep 22, 2023Observed: 1.54 ft at 11:30PM Sep 22, 2023Observed: 1.54 ft at 11:45PM Sep 22, 2023Observed: 1.54 ft at 12:00AM Sep 23, 2023Observed: 1.54 ft at 12:15AM Sep 23, 2023Observed: 1.54 ft at 12:30AM Sep 23, 2023Observed: 1.54 ft at 12:45AM Sep 23, 2023Observed: 1.54 ft at 1:00AM Sep 23, 2023Observed: 1.54 ft at 1:15AM Sep 23, 2023Observed: 1.54 ft at 1:30AM Sep 23, 2023Observed: 1.54 ft at 1:45AM Sep 23, 2023Observed: 1.54 ft at 2:00AM Sep 23, 2023Observed: 1.54 ft at 2:15AM Sep 23, 2023Observed: 1.54 ft at 2:30AM Sep 23, 2023Observed: 1.54 ft at 2:45AM Sep 23, 2023Observed: 1.54 ft at 3:00AM Sep 23, 2023Observed: 1.54 ft at 3:15AM Sep 23, 2023Observed: 1.54 ft at 3:30AM Sep 23, 2023Observed: 1.54 ft at 3:45AM Sep 23, 2023Observed: 1.54 ft at 4:00AM Sep 23, 2023Observed: 1.54 ft at 4:15AM Sep 23, 2023Observed: 1.54 ft at 4:30AM Sep 23, 2023Observed: 1.54 ft at 4:45AM Sep 23, 2023Observed: 1.54 ft at 5:00AM Sep 23, 2023Observed: 1.54 ft at 5:15AM Sep 23, 2023Observed: 1.54 ft at 5:30AM Sep 23, 2023Observed: 1.54 ft at 5:45AM Sep 23, 2023Observed: 1.54 ft at 6:00AM Sep 23, 2023Observed: 1.54 ft at 6:15AM Sep 23, 2023Observed: 1.54 ft at 6:30AM Sep 23, 2023Observed: 1.54 ft at 6:45AM Sep 23, 2023Observed: 1.54 ft at 7:00AM Sep 23, 2023Observed: 1.54 ft at 7:15AM Sep 23, 2023Observed: 1.54 ft at 7:30AM Sep 23, 2023Observed: 1.54 ft at 7:45AM Sep 23, 2023Observed: 1.54 ft at 8:00AM Sep 23, 2023Observed: 1.54 ft at 8:15AM Sep 23, 2023Observed: 1.54 ft at 8:30AM Sep 23, 2023Observed: 1.54 ft at 8:45AM Sep 23, 2023Observed: 1.54 ft at 9:00AM Sep 23, 2023Observed: 1.54 ft at 9:15AM Sep 23, 2023Observed: 1.54 ft at 9:30AM Sep 23, 2023Observed: 1.54 ft at 9:45AM Sep 23, 2023Observed: 1.54 ft at 10:00AM Sep 23, 2023Observed: 1.54 ft at 10:15AM Sep 23, 2023Observed: 1.54 ft at 10:30AM Sep 23, 2023Observed: 1.54 ft at 10:45AM Sep 23, 2023Observed: 1.54 ft at 11:00AM Sep 23, 2023Observed: 1.54 ft at 11:15AM Sep 23, 2023Observed: 1.54 ft at 11:30AM Sep 23, 2023Observed: 1.54 ft at 11:45AM Sep 23, 2023Observed: 1.54 ft at 12:00PM Sep 23, 2023Observed: 1.54 ft at 12:15PM Sep 23, 2023Observed: 1.54 ft at 12:30PM Sep 23, 2023Observed: 1.54 ft at 12:45PM Sep 23, 2023Observed: 1.54 ft at 1:00PM Sep 23, 2023Observed: 1.54 ft at 1:15PM Sep 23, 2023Observed: 1.54 ft at 1:30PM Sep 23, 2023Observed: 1.54 ft at 1:45PM Sep 23, 2023Observed: 1.54 ft at 2:00PM Sep 23, 2023Observed: 1.54 ft at 2:15PM Sep 23, 2023Observed: 1.54 ft at 2:30PM Sep 23, 2023Observed: 1.54 ft at 2:45PM Sep 23, 2023Observed: 1.54 ft at 3:00PM Sep 23, 2023Observed: 1.54 ft at 3:15PM Sep 23, 2023Observed: 1.54 ft at 3:30PM Sep 23, 2023Observed: 1.54 ft at 3:45PM Sep 23, 2023Observed: 1.54 ft at 4:00PM Sep 23, 2023Observed: 1.54 ft at 4:15PM Sep 23, 2023Observed: 1.54 ft at 4:30PM Sep 23, 2023Observed: 1.54 ft at 4:45PM Sep 23, 2023Observed: 1.54 ft at 5:00PM Sep 23, 2023Observed: 1.54 ft at 5:15PM Sep 23, 2023Observed: 1.54 ft at 5:30PM Sep 23, 2023Observed: 1.54 ft at 5:45PM Sep 23, 2023Observed: 1.54 ft at 6:00PM Sep 23, 2023Observed: 1.54 ft at 6:15PM Sep 23, 2023Observed: 1.54 ft at 7:30PM Sep 23, 2023Observed: 1.54 ft at 7:45PM Sep 23, 2023Observed: 1.54 ft at 8:00PM Sep 23, 2023Observed: 1.54 ft at 8:15PM Sep 23, 2023Observed: 1.54 ft at 8:30PM Sep 23, 2023Observed: 1.54 ft at 8:45PM Sep 23, 2023Observed: 1.54 ft at 9:00PM Sep 23, 2023Observed: 1.54 ft at 9:15PM Sep 23, 2023Observed: 1.54 ft at 9:30PM Sep 23, 2023Observed: 1.54 ft at 9:45PM Sep 23, 2023Observed: 1.54 ft at 10:00PM Sep 23, 2023Observed: 1.54 ft at 10:15PM Sep 23, 2023Observed: 1.54 ft at 10:30PM Sep 23, 2023Observed: 1.54 ft at 10:45PM Sep 23, 2023Observed: 1.54 ft at 11:00PM Sep 23, 2023Observed: 1.54 ft at 11:15PM Sep 23, 2023Observed: 1.54 ft at 11:30PM Sep 23, 2023Observed: 1.54 ft at 11:45PM Sep 23, 2023Observed: 1.54 ft at 12:00AM Sep 24, 2023Observed: 1.54 ft at 12:15AM Sep 24, 2023Observed: 1.54 ft at 12:30AM Sep 24, 2023Observed: 1.54 ft at 12:45AM Sep 24, 2023Observed: 1.54 ft at 1:00AM Sep 24, 2023Observed: 1.54 ft at 1:15AM Sep 24, 2023Observed: 1.54 ft at 1:30AM Sep 24, 2023Observed: 1.54 ft at 1:45AM Sep 24, 2023Observed: 1.54 ft at 2:00AM Sep 24, 2023Observed: 1.54 ft at 2:15AM Sep 24, 2023Observed: 1.54 ft at 2:30AM Sep 24, 2023Observed: 1.54 ft at 2:45AM Sep 24, 2023Observed: 1.54 ft at 3:00AM Sep 24, 2023Observed: 1.54 ft at 3:15AM Sep 24, 2023Observed: 1.54 ft at 3:30AM Sep 24, 2023Observed: 1.54 ft at 3:45AM Sep 24, 2023Observed: 1.54 ft at 4:00AM Sep 24, 2023Observed: 1.54 ft at 4:15AM Sep 24, 2023Observed: 1.54 ft at 4:30AM Sep 24, 2023Observed: 1.54 ft at 4:45AM Sep 24, 2023Observed: 1.54 ft at 5:00AM Sep 24, 2023Observed: 1.54 ft at 5:15AM Sep 24, 2023USGS--Water Resources of the United StatesTIDT2(plotting HGIRG) Graph Created (5:33AM Sep 24, 2023)ObservedLatest observed value: 1.54 ft at 5:15 AM CDT 24-Sep-2023. Flood Stage is 22 ft
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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 Frio River at Tilden are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Derby Upstream Gauge Downstream Gauge Downstream Gauge - at Choke Canyon Dam
Flood Categories (in feet)
Major Flood Stage: 27
Moderate Flood Stage: 26
Flood Stage: 22
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 30.06 ft on 07/10/2002
(2) 30.03 ft on 09/11/2002
(3) 29.80 ft on 06/28/1997
(4) 29.56 ft on 06/28/1997
(5) 29.18 ft on 06/09/1987
(6) 28.41 ft on 06/05/1987
(7) 28.20 ft on 07/02/1932
(8) 28.00 ft on 09/01/1919
(9) 27.61 ft on 06/17/1987
(10) 27.11 ft on 07/28/2007
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.18 ft on 08/09/2021
(2) 8.31 ft on 07/10/2021
(3) 23.89 ft on 06/05/2021
(4) 6.28 ft on 06/02/2021
(5) 20.97 ft on 05/21/2021
(6) 20.81 ft on 05/18/2021
(7) 8.94 ft on 05/14/2021
(8) 9.86 ft on 05/08/2021
(9) 22.33 ft on 09/23/2018
(10) 7.59 ft on 05/26/2017
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
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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
If you notice any errors in the below information, please contact our Webmaster
38.44 This is the flood of record outside period of record, occurring on July 1932.
30.06 This is the flood of record which occurred on July 10 2002. Disastrous flooding of commercial and residential buildings in Tilden.
29.8 Major flooding occurs. Disastrous flooding of commercial and residential buildings in Tilden. Restuarant on the right bank of the Frio River had 3 to 4 feet of water in it.
29.18 This is similar to the flood on June 9 1937. The restaurant had 3 feet of water inside. Numerous homes were flooded.
27 Major flooding occurs. Numerous residences and businesses flood in Tilden, requiring persons vulnerable to flooding to be evacuated. Lowland flooding of crops and pastureland traps and potentially drowns livestock. Most roads near the river are flooded and dangerous. Water reaches the parking lot and doors of the cafe.
26 Moderate flooding occurs. The flow is to the slab elevation of the lowest businesses and homes in Tilden. Numerous roads and low bridges flood and become very dangerous to motorists. Hundreds of livestock are trapped and potentially drowned in the flood plain, below Derby to the Choke Canyon Reservoir.
22 Minor lowland flooding of crops and pastureland occurs. Secondary roads and low bridges are also flooded.
20 Overbank conditions below Derby to Choke Canyon Reservoir occur, and floods the lowest secondary roads and bridges near the river.
17 Overbank conditions occur into lowest areas of the flood plain.
12 The river reaches bankfull stage.
Photos
(1) Gage Location on Bridge
(2) Overflow Area on Upstream Side of Bridge
(3) Frio River Looking Upstream
(4) Frio River Looking Downstream
(5) Overbank Area on Bridge
(6) Areal View of Flooding July 2002
(7) July 2002 Flooing Along Highway
(8) July 2002 Flooding in Frio River Floodplain
(9) July 2002 Flooding Along Highway
(10) Areal View of Flooding in River Basin
(11) Releases At Choke Canyon Dam During July 2002
(12) Areal View of Flooding Near River July 2002
About This Location Collapse

Latitude: 28.467222° N, Longitude: 98.547222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 22 ft 22 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 22)		 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 29 216.04 Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 216.04 ft 238.04 ft  

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
Corpus Christi Weather Forecast Office
426 Pinson Drive
Corpus Christi, TX 78406-1803
(361) 289-0959
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