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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
Tualatin River at West Linn Stage (ft)Flow (cfs)Observed: 3.45 ft at 4:15PM May 29, 2023Observed: 3.45 ft at 4:30PM May 29, 2023Highest Observation: 3.46 ft at 4:45PM May 29, 2023Highest Observation: 3.46 ft at 5:00PM May 29, 2023Highest Observation: 3.46 ft at 5:15PM May 29, 2023Highest Observation: 3.46 ft at 5:30PM May 29, 2023Highest Observation: 3.46 ft at 5:45PM May 29, 2023Highest Observation: 3.46 ft at 6:00PM May 29, 2023Highest Observation: 3.46 ft at 6:15PM May 29, 2023Observed: 3.45 ft at 6:30PM May 29, 2023Observed: 3.45 ft at 6:45PM May 29, 2023Observed: 3.45 ft at 7:00PM May 29, 2023Observed: 3.45 ft at 7:15PM May 29, 2023Observed: 3.45 ft at 7:30PM May 29, 2023Observed: 3.45 ft at 7:45PM May 29, 2023Observed: 3.44 ft at 8:00PM May 29, 2023Observed: 3.44 ft at 8:15PM May 29, 2023Observed: 3.44 ft at 8:30PM May 29, 2023Observed: 3.44 ft at 8:45PM May 29, 2023Observed: 3.44 ft at 9:00PM May 29, 2023Observed: 3.44 ft at 9:15PM May 29, 2023Observed: 3.44 ft at 9:30PM May 29, 2023Observed: 3.43 ft at 9:45PM May 29, 2023Observed: 3.43 ft at 10:00PM May 29, 2023Observed: 3.43 ft at 10:15PM May 29, 2023Observed: 3.43 ft at 10:30PM May 29, 2023Observed: 3.43 ft at 10:45PM May 29, 2023Observed: 3.43 ft at 11:00PM May 29, 2023Observed: 3.43 ft at 11:15PM May 29, 2023Observed: 3.43 ft at 11:30PM May 29, 2023Observed: 3.43 ft at 11:45PM May 29, 2023Observed: 3.43 ft at 12:00AM May 30, 2023Observed: 3.43 ft at 12:15AM May 30, 2023Observed: 3.43 ft at 12:30AM May 30, 2023Observed: 3.42 ft at 12:45AM May 30, 2023Observed: 3.43 ft at 1:00AM May 30, 2023Observed: 3.42 ft at 1:15AM May 30, 2023Observed: 3.42 ft at 1:30AM May 30, 2023Observed: 3.42 ft at 1:45AM May 30, 2023Observed: 3.42 ft at 2:00AM May 30, 2023Observed: 3.42 ft at 2:15AM May 30, 2023Observed: 3.42 ft at 2:30AM May 30, 2023Observed: 3.42 ft at 2:45AM May 30, 2023Observed: 3.41 ft at 3:00AM May 30, 2023Observed: 3.41 ft at 3:15AM May 30, 2023Observed: 3.41 ft at 3:30AM May 30, 2023Observed: 3.41 ft at 3:45AM May 30, 2023Observed: 3.4 ft at 4:00AM May 30, 2023Observed: 3.4 ft at 4:15AM May 30, 2023Observed: 3.4 ft at 4:30AM May 30, 2023Observed: 3.4 ft at 4:45AM May 30, 2023Observed: 3.4 ft at 5:00AM May 30, 2023Observed: 3.39 ft at 5:15AM May 30, 2023Observed: 3.39 ft at 5:30AM May 30, 2023Observed: 3.39 ft at 5:45AM May 30, 2023Observed: 3.4 ft at 6:00AM May 30, 2023Observed: 3.39 ft at 6:15AM May 30, 2023Observed: 3.39 ft at 6:30AM May 30, 2023Observed: 3.39 ft at 6:45AM May 30, 2023Observed: 3.4 ft at 7:00AM May 30, 2023Observed: 3.39 ft at 7:15AM May 30, 2023Observed: 3.39 ft at 7:30AM May 30, 2023Observed: 3.39 ft at 7:45AM May 30, 2023Observed: 3.39 ft at 8:00AM May 30, 2023Observed: 3.39 ft at 8:15AM May 30, 2023Observed: 3.4 ft at 8:30AM May 30, 2023Observed: 3.4 ft at 8:45AM May 30, 2023Observed: 3.4 ft at 9:00AM May 30, 2023Observed: 3.4 ft at 9:15AM May 30, 2023Observed: 3.4 ft at 9:30AM May 30, 2023Observed: 3.4 ft at 9:45AM May 30, 2023Observed: 3.4 ft at 10:00AM May 30, 2023Observed: 3.41 ft at 10:15AM May 30, 2023Observed: 3.41 ft at 10:30AM May 30, 2023Observed: 3.41 ft at 10:45AM May 30, 2023Observed: 3.42 ft at 11:00AM May 30, 2023Observed: 3.42 ft at 11:15AM May 30, 2023Observed: 3.42 ft at 11:30AM May 30, 2023Observed: 3.43 ft at 11:45AM May 30, 2023Observed: 3.43 ft at 12:00PM May 30, 2023Observed: 3.43 ft at 12:15PM May 30, 2023Observed: 3.44 ft at 12:30PM May 30, 2023Observed: 3.43 ft at 12:45PM May 30, 2023Observed: 3.43 ft at 1:00PM May 30, 2023Observed: 3.43 ft at 1:15PM May 30, 2023Observed: 3.43 ft at 1:30PM May 30, 2023Observed: 3.43 ft at 1:45PM May 30, 2023Observed: 3.43 ft at 2:00PM May 30, 2023Observed: 3.43 ft at 2:15PM May 30, 2023Observed: 3.43 ft at 2:30PM May 30, 2023Observed: 3.43 ft at 2:45PM May 30, 2023Observed: 3.43 ft at 3:00PM May 30, 2023Observed: 3.43 ft at 3:15PM May 30, 2023Observed: 3.43 ft at 3:30PM May 30, 2023Observed: 3.43 ft at 3:45PM May 30, 2023Observed: 3.44 ft at 4:00PM May 30, 2023Observed: 3.44 ft at 4:15PM May 30, 2023Observed: 3.43 ft at 4:30PM May 30, 2023Observed: 3.44 ft at 4:45PM May 30, 2023Observed: 3.44 ft at 5:00PM May 30, 2023Observed: 3.43 ft at 5:15PM May 30, 2023Observed: 3.43 ft at 5:30PM May 30, 2023Observed: 3.44 ft at 5:45PM May 30, 2023Observed: 3.43 ft at 6:00PM May 30, 2023Observed: 3.44 ft at 6:15PM May 30, 2023Observed: 3.44 ft at 6:30PM May 30, 2023Observed: 3.44 ft at 6:45PM May 30, 2023Observed: 3.44 ft at 7:00PM May 30, 2023Observed: 3.44 ft at 7:15PM May 30, 2023Observed: 3.44 ft at 7:30PM May 30, 2023Observed: 3.43 ft at 7:45PM May 30, 2023Observed: 3.43 ft at 8:00PM May 30, 2023Observed: 3.43 ft at 8:15PM May 30, 2023Observed: 3.43 ft at 8:30PM May 30, 2023Observed: 3.43 ft at 8:45PM May 30, 2023Observed: 3.43 ft at 9:00PM May 30, 2023Observed: 3.42 ft at 9:15PM May 30, 2023Observed: 3.42 ft at 9:30PM May 30, 2023Observed: 3.42 ft at 9:45PM May 30, 2023Observed: 3.41 ft at 10:00PM May 30, 2023Observed: 3.41 ft at 10:15PM May 30, 2023Observed: 3.41 ft at 10:30PM May 30, 2023Observed: 3.41 ft at 10:45PM May 30, 2023Observed: 3.41 ft at 11:00PM May 30, 2023Observed: 3.41 ft at 11:15PM May 30, 2023Observed: 3.4 ft at 11:30PM May 30, 2023Observed: 3.4 ft at 11:45PM May 30, 2023Observed: 3.4 ft at 12:00AM May 31, 2023Observed: 3.4 ft at 12:15AM May 31, 2023Observed: 3.4 ft at 12:30AM May 31, 2023Observed: 3.4 ft at 12:45AM May 31, 2023Observed: 3.4 ft at 1:00AM May 31, 2023Observed: 3.4 ft at 1:15AM May 31, 2023Observed: 3.39 ft at 1:30AM May 31, 2023Observed: 3.39 ft at 1:45AM May 31, 2023Observed: 3.39 ft at 2:00AM May 31, 2023Observed: 3.39 ft at 2:15AM May 31, 2023Observed: 3.38 ft at 2:30AM May 31, 2023Observed: 3.38 ft at 2:45AM May 31, 2023Observed: 3.37 ft at 3:00AM May 31, 2023Observed: 3.37 ft at 3:15AM May 31, 2023Observed: 3.36 ft at 3:30AM May 31, 2023Observed: 3.36 ft at 3:45AM May 31, 2023Observed: 3.36 ft at 4:00AM May 31, 2023Observed: 3.36 ft at 4:15AM May 31, 2023Observed: 3.36 ft at 4:30AM May 31, 2023Observed: 3.36 ft at 4:45AM May 31, 2023Observed: 3.36 ft at 5:00AM May 31, 2023Observed: 3.36 ft at 5:15AM May 31, 2023Observed: 3.36 ft at 5:30AM May 31, 2023Observed: 3.36 ft at 5:45AM May 31, 2023Observed: 3.36 ft at 6:00AM May 31, 2023Observed: 3.36 ft at 6:15AM May 31, 2023Observed: 3.36 ft at 6:30AM May 31, 2023Observed: 3.36 ft at 6:45AM May 31, 2023Observed: 3.36 ft at 7:00AM May 31, 2023Observed: 3.36 ft at 7:15AM May 31, 2023Observed: 3.36 ft at 7:30AM May 31, 2023Observed: 3.36 ft at 7:45AM May 31, 2023Observed: 3.36 ft at 8:00AM May 31, 2023Observed: 3.36 ft at 8:15AM May 31, 2023Observed: 3.36 ft at 8:30AM May 31, 2023Observed: 3.37 ft at 8:45AM May 31, 2023Observed: 3.37 ft at 9:00AM May 31, 2023Observed: 3.37 ft at 9:15AM May 31, 2023Observed: 3.37 ft at 9:30AM May 31, 2023Observed: 3.37 ft at 9:45AM May 31, 2023Observed: 3.37 ft at 10:00AM May 31, 2023Observed: 3.37 ft at 10:15AM May 31, 2023Observed: 3.37 ft at 10:30AM May 31, 2023Observed: 3.37 ft at 10:45AM May 31, 2023Observed: 3.37 ft at 11:00AM May 31, 2023Observed: 3.37 ft at 11:15AM May 31, 2023Observed: 3.37 ft at 11:30AM May 31, 2023Observed: 3.38 ft at 11:45AM May 31, 2023Observed: 3.38 ft at 12:00PM May 31, 2023Observed: 3.37 ft at 12:15PM May 31, 2023Observed: 3.38 ft at 12:30PM May 31, 2023Observed: 3.38 ft at 12:45PM May 31, 2023Observed: 3.38 ft at 1:00PM May 31, 2023Observed: 3.39 ft at 1:15PM May 31, 2023Observed: 3.39 ft at 1:30PM May 31, 2023Observed: 3.39 ft at 1:45PM May 31, 2023Observed: 3.39 ft at 2:00PM May 31, 2023Observed: 3.39 ft at 2:15PM May 31, 2023Observed: 3.39 ft at 2:30PM May 31, 2023Observed: 3.39 ft at 2:45PM May 31, 2023Observed: 3.39 ft at 3:00PM May 31, 2023Observed: 3.39 ft at 3:15PM May 31, 2023Observed: 3.38 ft at 3:30PM May 31, 2023Observed: 3.38 ft at 3:45PM May 31, 2023Observed: 3.38 ft at 4:00PM May 31, 2023Observed: 3.39 ft at 4:15PM May 31, 2023Observed: 3.38 ft at 4:30PM May 31, 2023Observed: 3.38 ft at 4:45PM May 31, 2023Observed: 3.38 ft at 5:00PM May 31, 2023Observed: 3.38 ft at 6:15PM May 31, 2023Observed: 3.38 ft at 6:30PM May 31, 2023Observed: 3.38 ft at 6:45PM May 31, 2023Observed: 3.38 ft at 7:00PM May 31, 2023Observed: 3.38 ft at 7:15PM May 31, 2023Observed: 3.37 ft at 7:30PM May 31, 2023Observed: 3.37 ft at 7:45PM May 31, 2023Observed: 3.37 ft at 8:00PM May 31, 2023Observed: 3.37 ft at 8:15PM May 31, 2023Observed: 3.37 ft at 8:30PM May 31, 2023Observed: 3.37 ft at 8:45PM May 31, 2023Observed: 3.37 ft at 9:00PM May 31, 2023Observed: 3.36 ft at 9:15PM May 31, 2023Observed: 3.36 ft at 9:30PM May 31, 2023Observed: 3.36 ft at 9:45PM May 31, 2023Observed: 3.36 ft at 10:00PM May 31, 2023Observed: 3.35 ft at 11:15PM May 31, 2023Observed: 3.35 ft at 11:30PM May 31, 2023Observed: 3.35 ft at 11:45PM May 31, 2023Observed: 3.35 ft at 12:00AM Jun 01, 2023Observed: 3.34 ft at 12:15AM Jun 01, 2023Observed: 3.34 ft at 12:30AM Jun 01, 2023Observed: 3.34 ft at 12:45AM Jun 01, 2023Observed: 3.34 ft at 1:00AM Jun 01, 2023Observed: 3.34 ft at 1:15AM Jun 01, 2023Observed: 3.34 ft at 1:30AM Jun 01, 2023Observed: 3.33 ft at 1:45AM Jun 01, 2023Observed: 3.33 ft at 2:00AM Jun 01, 2023Observed: 3.33 ft at 2:15AM Jun 01, 2023Observed: 3.33 ft at 2:30AM Jun 01, 2023Observed: 3.33 ft at 2:45AM Jun 01, 2023Observed: 3.33 ft at 3:00AM Jun 01, 2023Observed: 3.33 ft at 3:15AM Jun 01, 2023Observed: 3.33 ft at 3:30AM Jun 01, 2023Observed: 3.33 ft at 3:45AM Jun 01, 2023Observed: 3.32 ft at 4:00AM Jun 01, 2023Observed: 3.32 ft at 4:15AM Jun 01, 2023Observed: 3.32 ft at 4:30AM Jun 01, 2023Observed: 3.32 ft at 4:45AM Jun 01, 2023Observed: 3.31 ft at 5:00AM Jun 01, 2023Observed: 3.31 ft at 5:15AM Jun 01, 2023Observed: 3.31 ft at 5:30AM Jun 01, 2023Observed: 3.31 ft at 5:45AM Jun 01, 2023Observed: 3.31 ft at 6:00AM Jun 01, 2023Observed: 3.31 ft at 6:15AM Jun 01, 2023Observed: 3.31 ft at 6:30AM Jun 01, 2023Observed: 3.31 ft at 6:45AM Jun 01, 2023Observed: 3.31 ft at 7:00AM Jun 01, 2023Observed: 3.31 ft at 7:15AM Jun 01, 2023Observed: 3.31 ft at 7:30AM Jun 01, 2023Observed: 3.31 ft at 7:45AM Jun 01, 2023Observed: 3.31 ft at 8:00AM Jun 01, 2023Observed: 3.3 ft at 8:15AM Jun 01, 2023Observed: 3.3 ft at 8:30AM Jun 01, 2023Observed: 3.3 ft at 8:45AM Jun 01, 2023Observed: 3.31 ft at 9:00AM Jun 01, 2023Observed: 3.31 ft at 9:15AM Jun 01, 2023Observed: 3.31 ft at 9:30AM Jun 01, 2023Observed: 3.31 ft at 9:45AM Jun 01, 2023Observed: 3.32 ft at 10:00AM Jun 01, 2023Observed: 3.32 ft at 10:15AM Jun 01, 2023Observed: 3.32 ft at 10:30AM Jun 01, 2023Observed: 3.32 ft at 10:45AM Jun 01, 2023Observed: 3.32 ft at 11:00AM Jun 01, 2023Observed: 3.32 ft at 11:15AM Jun 01, 2023Observed: 3.32 ft at 11:30AM Jun 01, 2023Observed: 3.32 ft at 11:45AM Jun 01, 2023Observed: 3.33 ft at 12:00PM Jun 01, 2023Observed: 3.33 ft at 12:15PM Jun 01, 2023Observed: 3.34 ft at 12:30PM Jun 01, 2023Observed: 3.33 ft at 12:45PM Jun 01, 2023Observed: 3.34 ft at 1:00PM Jun 01, 2023Observed: 3.34 ft at 3:15PM Jun 01, 2023Observed: 3.34 ft at 3:30PM Jun 01, 2023Observed: 3.34 ft at 3:45PM Jun 01, 2023Observed: 3.33 ft at 4:00PM Jun 01, 2023Observed: 3.33 ft at 4:15PM Jun 01, 2023Observed: 3.33 ft at 4:30PM Jun 01, 2023Observed: 3.33 ft at 4:45PM Jun 01, 2023Observed: 3.33 ft at 5:00PM Jun 01, 2023Observed: 3.33 ft at 5:15PM Jun 01, 2023Observed: 3.33 ft at 5:30PM Jun 01, 2023Observed: 3.34 ft at 5:45PM Jun 01, 2023Observed: 3.33 ft at 6:00PM Jun 01, 2023Observed: 3.33 ft at 6:15PM Jun 01, 2023Observed: 3.33 ft at 6:30PM Jun 01, 2023Observed: 3.33 ft at 6:45PM Jun 01, 2023Observed: 3.33 ft at 7:00PM Jun 01, 2023Observed: 3.33 ft at 7:15PM Jun 01, 2023Observed: 3.33 ft at 7:30PM Jun 01, 2023Observed: 3.33 ft at 7:45PM Jun 01, 2023Observed: 3.33 ft at 8:00PM Jun 01, 2023Observed: 3.33 ft at 8:15PM Jun 01, 2023Observed: 3.33 ft at 8:30PM Jun 01, 2023Observed: 3.33 ft at 8:45PM Jun 01, 2023Observed: 3.32 ft at 9:00PM Jun 01, 2023Observed: 3.31 ft at 10:15PM Jun 01, 2023Observed: 3.31 ft at 10:30PM Jun 01, 2023Observed: 3.31 ft at 10:45PM Jun 01, 2023Observed: 3.31 ft at 11:00PM Jun 01, 2023Observed: 3.3 ft at 11:15PM Jun 01, 2023Observed: 3.31 ft at 11:30PM Jun 01, 2023Observed: 3.31 ft at 11:45PM Jun 01, 2023Observed: 3.3 ft at 12:00AM Jun 02, 2023Observed: 3.3 ft at 12:15AM Jun 02, 2023Observed: 3.3 ft at 12:30AM Jun 02, 2023Observed: 3.3 ft at 12:45AM Jun 02, 2023Observed: 3.3 ft at 1:00AM Jun 02, 2023Observed: 3.3 ft at 1:15AM Jun 02, 2023Observed: 3.3 ft at 1:30AM Jun 02, 2023Observed: 3.3 ft at 1:45AM Jun 02, 2023Observed: 3.3 ft at 2:00AM Jun 02, 2023Observed: 3.3 ft at 2:15AM Jun 02, 2023Observed: 3.29 ft at 2:30AM Jun 02, 2023Observed: 3.29 ft at 2:45AM Jun 02, 2023Observed: 3.29 ft at 3:00AM Jun 02, 2023Observed: 3.29 ft at 3:15AM Jun 02, 2023Observed: 3.29 ft at 3:30AM Jun 02, 2023Observed: 3.29 ft at 3:45AM Jun 02, 2023Observed: 3.28 ft at 4:00AM Jun 02, 2023Observed: 3.28 ft at 4:15AM Jun 02, 2023Observed: 3.28 ft at 4:30AM Jun 02, 2023Observed: 3.28 ft at 4:45AM Jun 02, 2023Observed: 3.28 ft at 5:00AM Jun 02, 2023Observed: 3.27 ft at 5:15AM Jun 02, 2023Observed: 3.27 ft at 5:30AM Jun 02, 2023Observed: 3.27 ft at 5:45AM Jun 02, 2023Observed: 3.27 ft at 6:00AM Jun 02, 2023Observed: 3.27 ft at 6:15AM Jun 02, 2023Observed: 3.27 ft at 6:30AM Jun 02, 2023Observed: 3.27 ft at 6:45AM Jun 02, 2023Observed: 3.27 ft at 7:00AM Jun 02, 2023Observed: 3.27 ft at 7:15AM Jun 02, 2023Observed: 3.27 ft at 7:30AM Jun 02, 2023Observed: 3.27 ft at 7:45AM Jun 02, 2023Observed: 3.27 ft at 8:00AM Jun 02, 2023Observed: 3.28 ft at 8:15AM Jun 02, 2023Observed: 3.28 ft at 8:30AM Jun 02, 2023Observed: 3.27 ft at 8:45AM Jun 02, 2023Observed: 3.28 ft at 9:00AM Jun 02, 2023Observed: 3.28 ft at 10:15AM Jun 02, 2023Observed: 3.28 ft at 10:30AM Jun 02, 2023Observed: 3.29 ft at 10:45AM Jun 02, 2023Observed: 3.29 ft at 11:00AM Jun 02, 2023Observed: 3.29 ft at 11:15AM Jun 02, 2023Observed: 3.29 ft at 11:30AM Jun 02, 2023Observed: 3.29 ft at 11:45AM Jun 02, 2023Observed: 3.3 ft at 12:00PM Jun 02, 2023Observed: 3.3 ft at 12:15PM Jun 02, 2023Observed: 3.3 ft at 12:30PM Jun 02, 2023Observed: 3.3 ft at 12:45PM Jun 02, 2023Observed: 3.3 ft at 1:00PM Jun 02, 2023Observed: 3.32 ft at 2:15PM Jun 02, 2023Observed: 3.32 ft at 2:30PM Jun 02, 2023Observed: 3.32 ft at 2:45PM Jun 02, 2023Observed: 3.32 ft at 3:00PM Jun 02, 2023Observed: 3.32 ft at 3:15PM Jun 02, 2023Observed: 3.32 ft at 3:30PM Jun 02, 2023Observed: 3.32 ft at 3:45PM Jun 02, 2023Observed: 3.32 ft at 4:00PM Jun 02, 2023Observed: 3.33 ft at 4:15PM Jun 02, 2023Observed: 3.32 ft at 4:30PM Jun 02, 2023Observed: 3.32 ft at 4:45PM Jun 02, 2023Observed: 3.33 ft at 5:00PM Jun 02, 2023Observed: 3.33 ft at 5:15PM Jun 02, 2023Observed: 3.32 ft at 5:30PM Jun 02, 2023Observed: 3.32 ft at 5:45PM Jun 02, 2023Observed: 3.32 ft at 6:00PM Jun 02, 2023Observed: 3.32 ft at 6:15PM Jun 02, 2023Observed: 3.32 ft at 6:30PM Jun 02, 2023Observed: 3.31 ft at 6:45PM Jun 02, 2023Observed: 3.31 ft at 7:00PM Jun 02, 2023Observed: 3.31 ft at 7:15PM Jun 02, 2023Observed: 3.31 ft at 7:30PM Jun 02, 2023Observed: 3.31 ft at 7:45PM Jun 02, 2023Observed: 3.31 ft at 8:00PM Jun 02, 2023Observed: 3.29 ft at 9:15PM Jun 02, 2023Observed: 3.3 ft at 9:30PM Jun 02, 2023Observed: 3.3 ft at 9:45PM Jun 02, 2023Observed: 3.3 ft at 10:00PM Jun 02, 2023Observed: 3.3 ft at 10:15PM Jun 02, 2023Observed: 3.3 ft at 10:30PM Jun 02, 2023Observed: 3.3 ft at 10:45PM Jun 02, 2023Observed: 3.3 ft at 11:00PM Jun 02, 2023Observed: 3.3 ft at 11:15PM Jun 02, 2023Observed: 3.29 ft at 11:30PM Jun 02, 2023Observed: 3.29 ft at 11:45PM Jun 02, 2023Observed: 3.29 ft at 12:00AM Jun 03, 2023Observed: 3.29 ft at 1:15AM Jun 03, 2023Observed: 3.29 ft at 1:30AM Jun 03, 2023Observed: 3.29 ft at 1:45AM Jun 03, 2023Observed: 3.29 ft at 2:00AM Jun 03, 2023Observed: 3.29 ft at 2:15AM Jun 03, 2023Observed: 3.28 ft at 2:30AM Jun 03, 2023Observed: 3.29 ft at 2:45AM Jun 03, 2023Observed: 3.29 ft at 3:00AM Jun 03, 2023Observed: 3.28 ft at 3:15AM Jun 03, 2023Observed: 3.29 ft at 3:30AM Jun 03, 2023Observed: 3.28 ft at 3:45AM Jun 03, 2023Observed: 3.28 ft at 4:00AM Jun 03, 2023Observed: 3.28 ft at 5:15AM Jun 03, 2023Observed: 3.28 ft at 5:30AM Jun 03, 2023Observed: 3.28 ft at 5:45AM Jun 03, 2023Observed: 3.28 ft at 6:00AM Jun 03, 2023Observed: 3.28 ft at 7:15AM Jun 03, 2023Observed: 3.28 ft at 7:30AM Jun 03, 2023Observed: 3.28 ft at 7:45AM Jun 03, 2023Observed: 3.28 ft at 8:00AM Jun 03, 2023Observed: 3.29 ft at 8:15AM Jun 03, 2023Observed: 3.29 ft at 8:30AM Jun 03, 2023Observed: 3.3 ft at 8:45AM Jun 03, 2023Observed: 3.3 ft at 9:00AM Jun 03, 2023Observed: 3.31 ft at 10:15AM Jun 03, 2023Observed: 3.31 ft at 10:30AM Jun 03, 2023Observed: 3.31 ft at 10:45AM Jun 03, 2023Observed: 3.32 ft at 11:00AM Jun 03, 2023Observed: 3.32 ft at 11:15AM Jun 03, 2023Observed: 3.32 ft at 11:30AM Jun 03, 2023Observed: 3.32 ft at 11:45AM Jun 03, 2023Observed: 3.33 ft at 12:00PM Jun 03, 2023Observed: 3.33 ft at 12:15PM Jun 03, 2023Observed: 3.34 ft at 12:30PM Jun 03, 2023Observed: 3.34 ft at 12:45PM Jun 03, 2023Observed: 3.35 ft at 1:00PM Jun 03, 2023Observed: 3.36 ft at 1:15PM Jun 03, 2023Observed: 3.36 ft at 1:30PM Jun 03, 2023Observed: 3.37 ft at 1:45PM Jun 03, 2023Observed: 3.37 ft at 2:00PM Jun 03, 2023Observed: 3.37 ft at 2:15PM Jun 03, 2023Observed: 3.37 ft at 2:30PM Jun 03, 2023Observed: 3.37 ft at 2:45PM Jun 03, 2023Observed: 3.37 ft at 3:00PM Jun 03, 2023Observed: 3.37 ft at 3:15PM Jun 03, 2023Observed: 3.38 ft at 3:30PM Jun 03, 2023Observed: 3.38 ft at 3:45PM Jun 03, 2023Observed: 3.39 ft at 4:00PM Jun 03, 2023Observed: 3.38 ft at 5:15PM Jun 03, 2023Observed: 3.38 ft at 5:30PM Jun 03, 2023Observed: 3.37 ft at 5:45PM Jun 03, 2023Observed: 3.38 ft at 6:00PM Jun 03, 2023Observed: 3.38 ft at 6:15PM Jun 03, 2023Observed: 3.37 ft at 6:30PM Jun 03, 2023Observed: 3.38 ft at 6:45PM Jun 03, 2023Observed: 3.38 ft at 7:00PM Jun 03, 2023Observed: 3.38 ft at 7:15PM Jun 03, 2023Observed: 3.38 ft at 7:30PM Jun 03, 2023Observed: 3.37 ft at 7:45PM Jun 03, 2023Observed: 3.38 ft at 8:00PM Jun 03, 2023Observed: 3.38 ft at 8:15PM Jun 03, 2023Observed: 3.38 ft at 8:30PM Jun 03, 2023Observed: 3.38 ft at 8:45PM Jun 03, 2023Observed: 3.38 ft at 9:00PM Jun 03, 2023Observed: 3.38 ft at 9:15PM Jun 03, 2023Observed: 3.38 ft at 9:30PM Jun 03, 2023Observed: 3.38 ft at 9:45PM Jun 03, 2023Observed: 3.38 ft at 10:00PM Jun 03, 2023Observed: 3.38 ft at 10:15PM Jun 03, 2023Observed: 3.38 ft at 10:30PM Jun 03, 2023Observed: 3.38 ft at 10:45PM Jun 03, 2023Observed: 3.37 ft at 11:00PM Jun 03, 2023Observed: 3.37 ft at 11:15PM Jun 03, 2023Observed: 3.37 ft at 11:30PM Jun 03, 2023Observed: 3.37 ft at 11:45PM Jun 03, 2023Observed: 3.36 ft at 12:00AM Jun 04, 2023Observed: 3.36 ft at 12:15AM Jun 04, 2023Observed: 3.36 ft at 12:30AM Jun 04, 2023Observed: 3.36 ft at 12:45AM Jun 04, 2023Observed: 3.36 ft at 1:00AM Jun 04, 2023Observed: 3.36 ft at 2:15AM Jun 04, 2023Observed: 3.36 ft at 2:30AM Jun 04, 2023Observed: 3.36 ft at 2:45AM Jun 04, 2023Observed: 3.36 ft at 3:00AM Jun 04, 2023Observed: 3.36 ft at 4:15AM Jun 04, 2023Observed: 3.36 ft at 4:30AM Jun 04, 2023Observed: 3.36 ft at 4:45AM Jun 04, 2023Observed: 3.36 ft at 5:00AM Jun 04, 2023Observed: 3.36 ft at 5:15AM Jun 04, 2023Observed: 3.36 ft at 5:30AM Jun 04, 2023Observed: 3.36 ft at 5:45AM Jun 04, 2023Observed: 3.36 ft at 6:00AM Jun 04, 2023Observed: 3.36 ft at 6:15AM Jun 04, 2023Observed: 3.36 ft at 6:30AM Jun 04, 2023Observed: 3.36 ft at 6:45AM Jun 04, 2023Observed: 3.35 ft at 7:00AM Jun 04, 2023Observed: 3.36 ft at 7:15AM Jun 04, 2023Observed: 3.36 ft at 7:30AM Jun 04, 2023Observed: 3.36 ft at 7:45AM Jun 04, 2023Observed: 3.36 ft at 8:00AM Jun 04, 2023Observed: 3.36 ft at 8:15AM Jun 04, 2023Observed: 3.36 ft at 8:30AM Jun 04, 2023Observed: 3.37 ft at 8:45AM Jun 04, 2023Observed: 3.37 ft at 9:00AM Jun 04, 2023Observed: 3.37 ft at 9:15AM Jun 04, 2023Observed: 3.37 ft at 9:30AM Jun 04, 2023Observed: 3.37 ft at 9:45AM Jun 04, 2023Observed: 3.37 ft at 10:00AM Jun 04, 2023Observed: 3.37 ft at 10:15AM Jun 04, 2023Observed: 3.37 ft at 10:30AM Jun 04, 2023Observed: 3.37 ft at 10:45AM Jun 04, 2023Observed: 3.37 ft at 11:00AM Jun 04, 2023Observed: 3.37 ft at 11:15AM Jun 04, 2023Observed: 3.38 ft at 11:30AM Jun 04, 2023Observed: 3.38 ft at 11:45AM Jun 04, 2023Observed: 3.38 ft at 12:00PM Jun 04, 2023Observed: 3.39 ft at 12:15PM Jun 04, 2023Observed: 3.39 ft at 12:30PM Jun 04, 2023Observed: 3.4 ft at 12:45PM Jun 04, 2023Observed: 3.41 ft at 1:00PM Jun 04, 2023Observed: 3.41 ft at 1:15PM Jun 04, 2023Observed: 3.41 ft at 1:30PM Jun 04, 2023Observed: 3.42 ft at 1:45PM Jun 04, 2023Observed: 3.42 ft at 2:00PM Jun 04, 2023Observed: 3.42 ft at 2:15PM Jun 04, 2023Observed: 3.44 ft at 2:30PM Jun 04, 2023Observed: 3.42 ft at 2:45PM Jun 04, 2023Observed: 3.42 ft at 3:00PM Jun 04, 2023Observed: 3.42 ft at 3:15PM Jun 04, 2023Observed: 3.42 ft at 3:30PM Jun 04, 2023Observed: 3.42 ft at 3:45PM Jun 04, 2023Observed: 3.41 ft at 4:00PM Jun 04, 2023Observed: 3.42 ft at 4:15PM Jun 04, 2023Observed: 3.41 ft at 4:30PM Jun 04, 2023Observed: 3.41 ft at 4:45PM Jun 04, 2023Observed: 3.41 ft at 5:00PM Jun 04, 2023Observed: 3.42 ft at 5:15PM Jun 04, 2023Observed: 3.43 ft at 5:30PM Jun 04, 2023Observed: 3.42 ft at 5:45PM Jun 04, 2023Observed: 3.41 ft at 6:00PM Jun 04, 2023Observed: 3.41 ft at 6:15PM Jun 04, 2023Observed: 3.39 ft at 6:30PM Jun 04, 2023Observed: 3.4 ft at 6:45PM Jun 04, 2023Observed: 3.4 ft at 7:00PM Jun 04, 2023Observed: 3.4 ft at 7:15PM Jun 04, 2023Observed: 3.39 ft at 7:30PM Jun 04, 2023Observed: 3.4 ft at 7:45PM Jun 04, 2023Observed: 3.4 ft at 8:00PM Jun 04, 2023Observed: 3.39 ft at 8:15PM Jun 04, 2023Observed: 3.39 ft at 8:30PM Jun 04, 2023Observed: 3.39 ft at 8:45PM Jun 04, 2023Observed: 3.4 ft at 9:00PM Jun 04, 2023Observed: 3.39 ft at 9:15PM Jun 04, 2023Observed: 3.39 ft at 9:30PM Jun 04, 2023Observed: 3.39 ft at 9:45PM Jun 04, 2023Observed: 3.4 ft at 10:00PM Jun 04, 2023Observed: 3.4 ft at 10:15PM Jun 04, 2023Observed: 3.4 ft at 10:30PM Jun 04, 2023Observed: 3.4 ft at 10:45PM Jun 04, 2023Observed: 3.4 ft at 11:00PM Jun 04, 2023Observed: 3.4 ft at 11:15PM Jun 04, 2023Observed: 3.4 ft at 11:30PM Jun 04, 2023Observed: 3.4 ft at 11:45PM Jun 04, 2023Observed: 3.39 ft at 12:00AM Jun 05, 2023Observed: 3.39 ft at 12:15AM Jun 05, 2023Observed: 3.38 ft at 12:30AM Jun 05, 2023Observed: 3.38 ft at 12:45AM Jun 05, 2023Observed: 3.38 ft at 1:00AM Jun 05, 2023Observed: 3.38 ft at 1:15AM Jun 05, 2023Observed: 3.38 ft at 1:30AM Jun 05, 2023Observed: 3.38 ft at 1:45AM Jun 05, 2023Observed: 3.38 ft at 2:00AM Jun 05, 2023Observed: 3.38 ft at 2:15AM Jun 05, 2023Observed: 3.37 ft at 2:30AM Jun 05, 2023Observed: 3.37 ft at 2:45AM Jun 05, 2023Observed: 3.37 ft at 3:00AM Jun 05, 2023Observed: 3.36 ft at 3:15AM Jun 05, 2023Observed: 3.36 ft at 3:30AM Jun 05, 2023Observed: 3.36 ft at 3:45AM Jun 05, 2023Observed: 3.36 ft at 4:00AM Jun 05, 2023Observed: 3.36 ft at 4:15AM Jun 05, 2023Observed: 3.36 ft at 4:30AM Jun 05, 2023Observed: 3.37 ft at 4:45AM Jun 05, 2023Observed: 3.36 ft at 5:00AM Jun 05, 2023Observed: 3.36 ft at 5:15AM Jun 05, 2023Observed: 3.36 ft at 5:30AM Jun 05, 2023Observed: 3.35 ft at 5:45AM Jun 05, 2023Observed: 3.35 ft at 6:00AM Jun 05, 2023Observed: 3.35 ft at 6:15AM Jun 05, 2023Observed: 3.35 ft at 6:30AM Jun 05, 2023Observed: 3.35 ft at 6:45AM Jun 05, 2023Observed: 3.35 ft at 7:00AM Jun 05, 2023Observed: 3.35 ft at 7:15AM Jun 05, 2023Observed: 3.35 ft at 7:30AM Jun 05, 2023Observed: 3.35 ft at 7:45AM Jun 05, 2023Observed: 3.35 ft at 8:00AM Jun 05, 2023Observed: 3.35 ft at 9:15AM Jun 05, 2023Observed: 3.36 ft at 9:30AM Jun 05, 2023Observed: 3.36 ft at 9:45AM Jun 05, 2023Observed: 3.36 ft at 10:00AM Jun 05, 2023Observed: 3.37 ft at 10:15AM Jun 05, 2023Observed: 3.37 ft at 10:30AM Jun 05, 2023Observed: 3.38 ft at 10:45AM Jun 05, 2023Observed: 3.37 ft at 11:00AM Jun 05, 2023Observed: 3.38 ft at 11:15AM Jun 05, 2023Observed: 3.39 ft at 11:30AM Jun 05, 2023Observed: 3.39 ft at 11:45AM Jun 05, 2023Observed: 3.39 ft at 12:00PM Jun 05, 2023Observed: 3.4 ft at 12:15PM Jun 05, 2023Observed: 3.4 ft at 12:30PM Jun 05, 2023Observed: 3.4 ft at 12:45PM Jun 05, 2023Observed: 3.4 ft at 1:00PM Jun 05, 2023Observed: 3.4 ft at 1:15PM Jun 05, 2023Observed: 3.4 ft at 1:30PM Jun 05, 2023Observed: 3.4 ft at 1:45PM Jun 05, 2023Observed: 3.4 ft at 2:00PM Jun 05, 2023Observed: 3.4 ft at 2:15PM Jun 05, 2023Observed: 3.41 ft at 2:30PM Jun 05, 2023Observed: 3.41 ft at 2:45PM Jun 05, 2023Observed: 3.4 ft at 3:00PM Jun 05, 2023Highest Forecast: 3.36 ft 5:00PM Jun 05, 2023Forecast: 3.35 ft 11:00PM Jun 05, 2023Forecast: 3.34 ft 5:00AM Jun 06, 2023Forecast: 3.34 ft 11:00AM Jun 06, 2023Forecast: 3.33 ft 5:00PM Jun 06, 2023Forecast: 3.32 ft 11:00PM Jun 06, 2023Forecast: 3.32 ft 5:00AM Jun 07, 2023Forecast: 3.31 ft 11:00AM Jun 07, 2023Forecast: 3.31 ft 5:00PM Jun 07, 2023Forecast: 3.3 ft 11:00PM Jun 07, 2023Forecast: 3.3 ft 5:00AM Jun 08, 2023Forecast: 3.29 ft 11:00AM Jun 08, 2023Forecast: 3.29 ft 5:00PM Jun 08, 2023Forecast: 3.28 ft 11:00PM Jun 08, 2023Forecast: 3.28 ft 5:00AM Jun 09, 2023Forecast: 3.27 ft 11:00AM Jun 09, 2023Forecast: 3.27 ft 5:00PM Jun 09, 2023Forecast: 3.26 ft 11:00PM Jun 09, 2023Forecast: 3.26 ft 5:00AM Jun 10, 2023Forecast: 3.26 ft 11:00AM Jun 10, 2023Forecast: 3.26 ft 5:00PM Jun 10, 2023Forecast: 3.25 ft 11:00PM Jun 10, 2023Forecast: 3.25 ft 5:00AM Jun 11, 2023Forecast: 3.24 ft 11:00AM Jun 11, 2023Forecast: 3.24 ft 5:00PM Jun 11, 2023Forecast: 3.24 ft 11:00PM Jun 11, 2023Forecast: 3.23 ft 5:00AM Jun 12, 2023Forecast: 3.23 ft 11:00AM Jun 12, 2023USGS--Water Resources of the United StatesWSLO3(plotting HGIRG) Graph Created (4:03PM Jun 5, 2023)ObservedForecast (issued 2:48PM Jun 5)Latest observed value: 3.4 ft at 3:00 PM PDT 5-Jun-2023. Flood Stage is 13.5 ft
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Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts for the Tualatin River at West Linn are issued routinely year-round.
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Upstream Gauge - at Tualatin Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 0
Flood Stage: 13.5
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 18.32 ft on 02/10/1996
(2) 17.72 ft on 12/23/1933
(3) 17.29 ft on 12/30/1937
(4) 16.31 ft on 01/18/1974
(5) 16.31 ft on 01/02/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 13.40 ft on 12/13/2015
(2) 13.47 ft on 01/13/2006
(3) 14.42 ft on 03/01/1999
(4) 16.31 ft on 01/02/1997
(5) 18.32 ft on 02/10/1996
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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 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
18 expect major widespread flooding of homes and structures from the City of Tualatin downstream to the confluence with the Willamette, along with numerous road closures. Also expect major flooding of homes and boat houses around Lake Oswego and along the Oswego Canal.
17 expect flooding of numerous homes and structures along the Tualatin River upstream of the City of Tualatin down to the confluence with the Willamette, including flooding of homes in the Rivergrove area just east of I-5. Also expect overtopping of the Oswego Canal inlet gate and flooding along the Oswego Canal. The Oswego lake surface will begin rising even with all lake outlets fully opened.
16 expect flooding of numerous homes and structures along the Tualatin River upstream of the City of Tualatin down to the confluence with the Willamette, along with flooding of homes in the Rivergrove area just east of I-5. Overtopping of the Oswego Canal inlet gate is possible at this level, which would lead to some erosion of the canal banks.
15 expect flooding of homes and other structures to begin along the Tualatin River from upstream of the City of Tualatin down to the confluence with the Willamette. Also expect several road closures in the area.
14.5 the Oswego canal inlet gate will likely be overtopped. Expect several road closures in the area. Flooding of homes and other structures along the Tualatin River from upstream of the City of Tualatin down to the confluence with the Willamette will also begin.
13.5 expect lowland flooding. Numerous secondary roads upstream of Tualatin are likely to be closed, and low-lying structures along the Tualatin from the City of Tualatin downstream to the confluence with the Willamette are threatened by flood waters.
11 some localized lowland flooding is possible.
Photos
(1) Downstream view from the bridge
(2) USGS gage house
(3) Upstream view from the bridge
About This Location Collapse

Latitude: 45.350833° N, Longitude: 122.675000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 13.5 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 85.61 99.11 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:
Additional Information Collapse
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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
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5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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