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Hydrograph River at a Glance Download
Tualatin River at West Linn Stage (ft)Flow (cfs)Highest Observation: 3.18 ft at 4:45PM Jul 26, 2014Highest Observation: 3.18 ft at 5:00PM Jul 26, 2014Observed: 3.17 ft at 5:15PM Jul 26, 2014Observed: 3.17 ft at 5:30PM Jul 26, 2014Observed: 3.17 ft at 5:45PM Jul 26, 2014Observed: 3.17 ft at 6:00PM Jul 26, 2014Observed: 3.17 ft at 6:15PM Jul 26, 2014Observed: 3.17 ft at 6:30PM Jul 26, 2014Observed: 3.16 ft at 6:45PM Jul 26, 2014Observed: 3.16 ft at 7:00PM Jul 26, 2014Observed: 3.16 ft at 7:15PM Jul 26, 2014Observed: 3.16 ft at 7:30PM Jul 26, 2014Observed: 3.16 ft at 7:45PM Jul 26, 2014Observed: 3.16 ft at 8:00PM Jul 26, 2014Observed: 3.15 ft at 8:15PM Jul 26, 2014Observed: 3.15 ft at 8:30PM Jul 26, 2014Observed: 3.15 ft at 8:45PM Jul 26, 2014Observed: 3.14 ft at 9:00PM Jul 26, 2014Observed: 3.14 ft at 9:15PM Jul 26, 2014Observed: 3.14 ft at 9:30PM Jul 26, 2014Observed: 3.13 ft at 9:45PM Jul 26, 2014Observed: 3.13 ft at 10:00PM Jul 26, 2014Observed: 3.13 ft at 10:15PM Jul 26, 2014Observed: 3.13 ft at 10:30PM Jul 26, 2014Observed: 3.12 ft at 10:45PM Jul 26, 2014Observed: 3.12 ft at 11:00PM Jul 26, 2014Observed: 3.12 ft at 11:15PM Jul 26, 2014Observed: 3.12 ft at 11:30PM Jul 26, 2014Observed: 3.12 ft at 11:45PM Jul 26, 2014Observed: 3.11 ft at 12:00AM Jul 27, 2014Observed: 3.11 ft at 12:15AM Jul 27, 2014Observed: 3.11 ft at 12:30AM Jul 27, 2014Observed: 3.11 ft at 12:45AM Jul 27, 2014Observed: 3.1 ft at 1:00AM Jul 27, 2014Observed: 3.1 ft at 1:15AM Jul 27, 2014Observed: 3.1 ft at 1:30AM Jul 27, 2014Observed: 3.1 ft at 1:45AM Jul 27, 2014Observed: 3.09 ft at 2:00AM Jul 27, 2014Observed: 3.09 ft at 2:15AM Jul 27, 2014Observed: 3.09 ft at 2:30AM Jul 27, 2014Observed: 3.09 ft at 2:45AM Jul 27, 2014Observed: 3.08 ft at 3:00AM Jul 27, 2014Observed: 3.08 ft at 3:15AM Jul 27, 2014Observed: 3.08 ft at 3:30AM Jul 27, 2014Observed: 3.08 ft at 3:45AM Jul 27, 2014Observed: 3.07 ft at 4:00AM Jul 27, 2014Observed: 3.07 ft at 4:15AM Jul 27, 2014Observed: 3.07 ft at 4:30AM Jul 27, 2014Observed: 3.06 ft at 4:45AM Jul 27, 2014Observed: 3.06 ft at 5:00AM Jul 27, 2014Observed: 3.06 ft at 5:15AM Jul 27, 2014Observed: 3.06 ft at 5:30AM Jul 27, 2014Observed: 3.06 ft at 5:45AM Jul 27, 2014Observed: 3.05 ft at 6:00AM Jul 27, 2014Observed: 3.05 ft at 6:15AM Jul 27, 2014Observed: 3.05 ft at 6:30AM Jul 27, 2014Observed: 3.04 ft at 6:45AM Jul 27, 2014Observed: 3.04 ft at 7:00AM Jul 27, 2014Observed: 3.04 ft at 7:15AM Jul 27, 2014Observed: 3.04 ft at 7:30AM Jul 27, 2014Observed: 3.03 ft at 7:45AM Jul 27, 2014Observed: 3.03 ft at 8:00AM Jul 27, 2014Observed: 3.03 ft at 8:15AM Jul 27, 2014Observed: 3.03 ft at 8:30AM Jul 27, 2014Observed: 3.03 ft at 8:45AM Jul 27, 2014Observed: 3.03 ft at 9:00AM Jul 27, 2014Observed: 3.03 ft at 9:15AM Jul 27, 2014Observed: 3.03 ft at 9:30AM Jul 27, 2014Observed: 3.02 ft at 9:45AM Jul 27, 2014Observed: 3.03 ft at 10:00AM Jul 27, 2014Observed: 3.03 ft at 10:15AM Jul 27, 2014Observed: 3.03 ft at 10:30AM Jul 27, 2014Observed: 3.02 ft at 10:45AM Jul 27, 2014Observed: 3.02 ft at 11:00AM Jul 27, 2014Observed: 3.03 ft at 11:15AM Jul 27, 2014Observed: 3.03 ft at 11:30AM Jul 27, 2014Observed: 3.03 ft at 11:45AM Jul 27, 2014Observed: 3.03 ft at 12:00PM Jul 27, 2014Observed: 3.03 ft at 12:15PM Jul 27, 2014Observed: 3.04 ft at 12:30PM Jul 27, 2014Observed: 3.04 ft at 12:45PM Jul 27, 2014Observed: 3.04 ft at 1:00PM Jul 27, 2014Observed: 3.04 ft at 1:15PM Jul 27, 2014Observed: 3.04 ft at 1:30PM Jul 27, 2014Observed: 3.04 ft at 1:45PM Jul 27, 2014Observed: 3.05 ft at 2:00PM Jul 27, 2014Observed: 3.05 ft at 2:15PM Jul 27, 2014Observed: 3.05 ft at 2:30PM Jul 27, 2014Observed: 3.05 ft at 2:45PM Jul 27, 2014Observed: 3.05 ft at 3:00PM Jul 27, 2014Observed: 3.05 ft at 3:15PM Jul 27, 2014Observed: 3.05 ft at 3:30PM Jul 27, 2014Observed: 3.05 ft at 3:45PM Jul 27, 2014Observed: 3.04 ft at 4:00PM Jul 27, 2014Observed: 3.04 ft at 4:15PM Jul 27, 2014Observed: 3.04 ft at 4:30PM Jul 27, 2014Observed: 3.04 ft at 4:45PM Jul 27, 2014Observed: 3.04 ft at 5:00PM Jul 27, 2014Observed: 3.04 ft at 5:15PM Jul 27, 2014Observed: 3.03 ft at 5:30PM Jul 27, 2014Observed: 3.03 ft at 5:45PM Jul 27, 2014Observed: 3.03 ft at 6:00PM Jul 27, 2014Observed: 3.03 ft at 6:15PM Jul 27, 2014Observed: 3.02 ft at 6:30PM Jul 27, 2014Observed: 3.03 ft at 6:45PM Jul 27, 2014Observed: 3.02 ft at 7:00PM Jul 27, 2014Observed: 3.02 ft at 7:15PM Jul 27, 2014Observed: 3.02 ft at 7:30PM Jul 27, 2014Observed: 3.02 ft at 7:45PM Jul 27, 2014Observed: 3.02 ft at 8:00PM Jul 27, 2014Observed: 3.02 ft at 8:15PM Jul 27, 2014Observed: 3.02 ft at 8:30PM Jul 27, 2014Observed: 3.01 ft at 8:45PM Jul 27, 2014Observed: 3.01 ft at 9:00PM Jul 27, 2014Observed: 3.01 ft at 9:15PM Jul 27, 2014Observed: 3.01 ft at 9:30PM Jul 27, 2014Observed: 3 ft at 9:45PM Jul 27, 2014Observed: 3 ft at 10:00PM Jul 27, 2014Observed: 3 ft at 10:15PM Jul 27, 2014Observed: 3 ft at 10:30PM Jul 27, 2014Observed: 3 ft at 10:45PM Jul 27, 2014Observed: 3 ft at 11:00PM Jul 27, 2014Observed: 2.99 ft at 11:15PM Jul 27, 2014Observed: 2.99 ft at 11:30PM Jul 27, 2014Observed: 2.99 ft at 11:45PM Jul 27, 2014Observed: 2.99 ft at 12:00AM Jul 28, 2014Observed: 2.99 ft at 12:15AM Jul 28, 2014Observed: 2.99 ft at 12:30AM Jul 28, 2014Observed: 2.98 ft at 12:45AM Jul 28, 2014Observed: 2.98 ft at 1:00AM Jul 28, 2014Observed: 2.98 ft at 1:15AM Jul 28, 2014Observed: 2.98 ft at 1:30AM Jul 28, 2014Observed: 2.98 ft at 1:45AM Jul 28, 2014Observed: 2.97 ft at 2:00AM Jul 28, 2014Observed: 2.97 ft at 2:15AM Jul 28, 2014Observed: 2.97 ft at 2:30AM Jul 28, 2014Observed: 2.96 ft at 2:45AM Jul 28, 2014Observed: 2.96 ft at 3:00AM Jul 28, 2014Observed: 2.96 ft at 3:15AM Jul 28, 2014Observed: 2.96 ft at 3:30AM Jul 28, 2014Observed: 2.95 ft at 3:45AM Jul 28, 2014Observed: 2.95 ft at 4:00AM Jul 28, 2014Observed: 2.95 ft at 4:15AM Jul 28, 2014Observed: 2.95 ft at 4:30AM Jul 28, 2014Observed: 2.94 ft at 4:45AM Jul 28, 2014Observed: 2.94 ft at 5:00AM Jul 28, 2014Observed: 2.94 ft at 5:15AM Jul 28, 2014Observed: 2.93 ft at 5:30AM Jul 28, 2014Observed: 2.93 ft at 5:45AM Jul 28, 2014Observed: 2.93 ft at 6:00AM Jul 28, 2014Observed: 2.93 ft at 6:15AM Jul 28, 2014Observed: 2.92 ft at 6:30AM Jul 28, 2014Observed: 2.92 ft at 6:45AM Jul 28, 2014Observed: 2.92 ft at 7:00AM Jul 28, 2014Observed: 2.92 ft at 7:15AM Jul 28, 2014Observed: 2.92 ft at 7:30AM Jul 28, 2014Observed: 2.91 ft at 7:45AM Jul 28, 2014Observed: 2.91 ft at 8:00AM Jul 28, 2014Observed: 2.91 ft at 8:15AM Jul 28, 2014Observed: 2.91 ft at 8:30AM Jul 28, 2014Observed: 2.91 ft at 8:45AM Jul 28, 2014Observed: 2.91 ft at 9:00AM Jul 28, 2014Observed: 2.91 ft at 9:15AM Jul 28, 2014Observed: 2.91 ft at 9:30AM Jul 28, 2014Observed: 2.91 ft at 9:45AM Jul 28, 2014Observed: 2.92 ft at 10:00AM Jul 28, 2014Observed: 2.92 ft at 10:15AM Jul 28, 2014Observed: 2.92 ft at 10:30AM Jul 28, 2014Observed: 2.92 ft at 10:45AM Jul 28, 2014Observed: 2.92 ft at 11:00AM Jul 28, 2014Observed: 2.93 ft at 11:15AM Jul 28, 2014Observed: 2.93 ft at 11:30AM Jul 28, 2014Observed: 2.93 ft at 11:45AM Jul 28, 2014Observed: 2.93 ft at 12:00PM Jul 28, 2014Observed: 2.94 ft at 12:15PM Jul 28, 2014Observed: 2.94 ft at 12:30PM Jul 28, 2014Observed: 2.94 ft at 12:45PM Jul 28, 2014Observed: 2.95 ft at 1:00PM Jul 28, 2014Observed: 2.95 ft at 1:15PM Jul 28, 2014Observed: 2.95 ft at 1:30PM Jul 28, 2014Observed: 2.95 ft at 1:45PM Jul 28, 2014Observed: 2.95 ft at 2:00PM Jul 28, 2014Observed: 2.95 ft at 2:15PM Jul 28, 2014Observed: 2.95 ft at 2:30PM Jul 28, 2014Observed: 2.95 ft at 2:45PM Jul 28, 2014Observed: 2.95 ft at 3:00PM Jul 28, 2014Observed: 2.95 ft at 3:15PM Jul 28, 2014Observed: 2.95 ft at 3:30PM Jul 28, 2014Observed: 2.95 ft at 3:45PM Jul 28, 2014Observed: 2.95 ft at 4:00PM Jul 28, 2014Observed: 2.95 ft at 4:15PM Jul 28, 2014Observed: 2.95 ft at 4:30PM Jul 28, 2014Observed: 2.94 ft at 4:45PM Jul 28, 2014Observed: 2.94 ft at 5:00PM Jul 28, 2014Observed: 2.94 ft at 5:15PM Jul 28, 2014Observed: 2.94 ft at 5:30PM Jul 28, 2014Observed: 2.95 ft at 5:45PM Jul 28, 2014Observed: 2.94 ft at 6:00PM Jul 28, 2014Observed: 2.94 ft at 6:15PM Jul 28, 2014Observed: 2.94 ft at 6:30PM Jul 28, 2014Observed: 2.94 ft at 6:45PM Jul 28, 2014Observed: 2.94 ft at 7:00PM Jul 28, 2014Observed: 2.94 ft at 7:15PM Jul 28, 2014Observed: 2.93 ft at 7:30PM Jul 28, 2014Observed: 2.93 ft at 7:45PM Jul 28, 2014Observed: 2.93 ft at 8:00PM Jul 28, 2014Observed: 2.93 ft at 8:15PM Jul 28, 2014Observed: 2.93 ft at 8:30PM Jul 28, 2014Observed: 2.93 ft at 8:45PM Jul 28, 2014Observed: 2.93 ft at 9:00PM Jul 28, 2014Observed: 2.92 ft at 9:15PM Jul 28, 2014Observed: 2.92 ft at 9:30PM Jul 28, 2014Observed: 2.92 ft at 9:45PM Jul 28, 2014Observed: 2.92 ft at 10:00PM Jul 28, 2014Observed: 2.92 ft at 10:15PM Jul 28, 2014Observed: 2.91 ft at 10:30PM Jul 28, 2014Observed: 2.91 ft at 10:45PM Jul 28, 2014Observed: 2.91 ft at 11:00PM Jul 28, 2014Observed: 2.91 ft at 11:15PM Jul 28, 2014Observed: 2.91 ft at 11:30PM Jul 28, 2014Observed: 2.91 ft at 11:45PM Jul 28, 2014Observed: 2.91 ft at 12:00AM Jul 29, 2014Observed: 2.91 ft at 12:15AM Jul 29, 2014Observed: 2.91 ft at 12:30AM Jul 29, 2014Observed: 2.91 ft at 12:45AM Jul 29, 2014Observed: 2.91 ft at 1:00AM Jul 29, 2014Observed: 2.91 ft at 1:15AM Jul 29, 2014Observed: 2.91 ft at 1:30AM Jul 29, 2014Observed: 2.91 ft at 1:45AM Jul 29, 2014Observed: 2.91 ft at 2:00AM Jul 29, 2014Observed: 2.91 ft at 2:15AM Jul 29, 2014Observed: 2.9 ft at 2:30AM Jul 29, 2014Observed: 2.9 ft at 2:45AM Jul 29, 2014Observed: 2.9 ft at 3:00AM Jul 29, 2014Observed: 2.9 ft at 3:15AM Jul 29, 2014Observed: 2.9 ft at 3:30AM Jul 29, 2014Observed: 2.9 ft at 3:45AM Jul 29, 2014Observed: 2.89 ft at 4:00AM Jul 29, 2014Observed: 2.89 ft at 4:15AM Jul 29, 2014Observed: 2.89 ft at 4:30AM Jul 29, 2014Observed: 2.89 ft at 4:45AM Jul 29, 2014Observed: 2.89 ft at 5:00AM Jul 29, 2014Observed: 2.88 ft at 5:15AM Jul 29, 2014Observed: 2.88 ft at 5:30AM Jul 29, 2014Observed: 2.88 ft at 5:45AM Jul 29, 2014Observed: 2.88 ft at 6:00AM Jul 29, 2014Observed: 2.88 ft at 6:15AM Jul 29, 2014Observed: 2.88 ft at 6:30AM Jul 29, 2014Observed: 2.87 ft at 6:45AM Jul 29, 2014Observed: 2.87 ft at 7:00AM Jul 29, 2014Observed: 2.87 ft at 7:15AM Jul 29, 2014Observed: 2.87 ft at 7:30AM Jul 29, 2014Observed: 2.87 ft at 7:45AM Jul 29, 2014Observed: 2.87 ft at 8:00AM Jul 29, 2014Observed: 2.87 ft at 8:15AM Jul 29, 2014Observed: 2.87 ft at 8:30AM Jul 29, 2014Observed: 2.87 ft at 8:45AM Jul 29, 2014Observed: 2.87 ft at 9:00AM Jul 29, 2014Observed: 2.87 ft at 9:15AM Jul 29, 2014Observed: 2.87 ft at 9:30AM Jul 29, 2014Observed: 2.87 ft at 9:45AM Jul 29, 2014Observed: 2.87 ft at 10:00AM Jul 29, 2014Observed: 2.87 ft at 10:15AM Jul 29, 2014Observed: 2.87 ft at 10:30AM Jul 29, 2014Observed: 2.88 ft at 10:45AM Jul 29, 2014Observed: 2.88 ft at 11:00AM Jul 29, 2014Observed: 2.88 ft at 11:15AM Jul 29, 2014Observed: 2.89 ft at 11:30AM Jul 29, 2014Observed: 2.89 ft at 11:45AM Jul 29, 2014Observed: 2.89 ft at 12:00PM Jul 29, 2014Observed: 2.9 ft at 12:15PM Jul 29, 2014Observed: 2.9 ft at 12:30PM Jul 29, 2014Observed: 2.9 ft at 12:45PM Jul 29, 2014Observed: 2.9 ft at 1:00PM Jul 29, 2014Observed: 2.9 ft at 1:15PM Jul 29, 2014Observed: 2.9 ft at 1:30PM Jul 29, 2014Observed: 2.91 ft at 1:45PM Jul 29, 2014Observed: 2.91 ft at 2:00PM Jul 29, 2014Observed: 2.91 ft at 2:15PM Jul 29, 2014Observed: 2.91 ft at 2:30PM Jul 29, 2014Observed: 2.91 ft at 2:45PM Jul 29, 2014Observed: 2.91 ft at 3:00PM Jul 29, 2014Observed: 2.91 ft at 3:15PM Jul 29, 2014Observed: 2.91 ft at 3:30PM Jul 29, 2014Observed: 2.92 ft at 3:45PM Jul 29, 2014Observed: 2.92 ft at 4:00PM Jul 29, 2014Observed: 2.92 ft at 4:15PM Jul 29, 2014Observed: 2.92 ft at 4:30PM Jul 29, 2014Observed: 2.92 ft at 4:45PM Jul 29, 2014Observed: 2.92 ft at 5:00PM Jul 29, 2014Observed: 2.91 ft at 5:15PM Jul 29, 2014Observed: 2.92 ft at 5:30PM Jul 29, 2014Observed: 2.92 ft at 5:45PM Jul 29, 2014Observed: 2.91 ft at 6:00PM Jul 29, 2014Observed: 2.91 ft at 6:15PM Jul 29, 2014Observed: 2.91 ft at 6:30PM Jul 29, 2014Observed: 2.91 ft at 6:45PM Jul 29, 2014Observed: 2.91 ft at 7:00PM Jul 29, 2014Observed: 2.91 ft at 7:15PM Jul 29, 2014Observed: 2.91 ft at 7:30PM Jul 29, 2014Observed: 2.9 ft at 7:45PM Jul 29, 2014Observed: 2.9 ft at 8:00PM Jul 29, 2014Observed: 2.9 ft at 8:15PM Jul 29, 2014Observed: 2.9 ft at 8:30PM Jul 29, 2014Observed: 2.9 ft at 8:45PM Jul 29, 2014Observed: 2.9 ft at 9:00PM Jul 29, 2014Observed: 2.9 ft at 9:15PM Jul 29, 2014Observed: 2.9 ft at 9:30PM Jul 29, 2014Observed: 2.9 ft at 9:45PM Jul 29, 2014Observed: 2.9 ft at 10:00PM Jul 29, 2014Observed: 2.9 ft at 10:15PM Jul 29, 2014Observed: 2.89 ft at 10:30PM Jul 29, 2014Observed: 2.89 ft at 10:45PM Jul 29, 2014Observed: 2.89 ft at 11:00PM Jul 29, 2014Observed: 2.89 ft at 11:15PM Jul 29, 2014Observed: 2.89 ft at 11:30PM Jul 29, 2014Observed: 2.89 ft at 11:45PM Jul 29, 2014Observed: 2.89 ft at 12:00AM Jul 30, 2014Observed: 2.88 ft at 12:15AM Jul 30, 2014Observed: 2.88 ft at 12:30AM Jul 30, 2014Observed: 2.88 ft at 12:45AM Jul 30, 2014Observed: 2.88 ft at 1:00AM Jul 30, 2014Observed: 2.88 ft at 1:15AM Jul 30, 2014Observed: 2.88 ft at 1:30AM Jul 30, 2014Observed: 2.88 ft at 1:45AM Jul 30, 2014Observed: 2.88 ft at 2:00AM Jul 30, 2014Observed: 2.88 ft at 2:15AM Jul 30, 2014Observed: 2.87 ft at 2:30AM Jul 30, 2014Observed: 2.87 ft at 2:45AM Jul 30, 2014Observed: 2.87 ft at 3:00AM Jul 30, 2014Observed: 2.87 ft at 3:15AM Jul 30, 2014Observed: 2.87 ft at 3:30AM Jul 30, 2014Observed: 2.86 ft at 3:45AM Jul 30, 2014Observed: 2.86 ft at 4:00AM Jul 30, 2014Observed: 2.86 ft at 4:15AM Jul 30, 2014Observed: 2.86 ft at 4:30AM Jul 30, 2014Observed: 2.85 ft at 4:45AM Jul 30, 2014Observed: 2.85 ft at 5:00AM Jul 30, 2014Observed: 2.85 ft at 5:15AM Jul 30, 2014Observed: 2.85 ft at 5:30AM Jul 30, 2014Observed: 2.85 ft at 5:45AM Jul 30, 2014Observed: 2.84 ft at 6:00AM Jul 30, 2014Observed: 2.84 ft at 6:15AM Jul 30, 2014Observed: 2.84 ft at 6:30AM Jul 30, 2014Observed: 2.84 ft at 6:45AM Jul 30, 2014Observed: 2.84 ft at 7:00AM Jul 30, 2014Observed: 2.84 ft at 7:15AM Jul 30, 2014Observed: 2.83 ft at 7:30AM Jul 30, 2014Observed: 2.83 ft at 7:45AM Jul 30, 2014Observed: 2.83 ft at 8:00AM Jul 30, 2014Observed: 2.83 ft at 8:15AM Jul 30, 2014Observed: 2.83 ft at 8:30AM Jul 30, 2014Observed: 2.83 ft at 8:45AM Jul 30, 2014Observed: 2.83 ft at 9:00AM Jul 30, 2014Observed: 2.83 ft at 9:15AM Jul 30, 2014Observed: 2.83 ft at 9:30AM Jul 30, 2014Observed: 2.84 ft at 9:45AM Jul 30, 2014Observed: 2.83 ft at 10:00AM Jul 30, 2014Observed: 2.84 ft at 10:15AM Jul 30, 2014Observed: 2.84 ft at 10:30AM Jul 30, 2014Observed: 2.84 ft at 10:45AM Jul 30, 2014Observed: 2.85 ft at 11:00AM Jul 30, 2014Observed: 2.85 ft at 11:15AM Jul 30, 2014Observed: 2.85 ft at 11:30AM Jul 30, 2014Observed: 2.85 ft at 11:45AM Jul 30, 2014Observed: 2.85 ft at 12:00PM Jul 30, 2014Observed: 2.86 ft at 12:15PM Jul 30, 2014Observed: 2.86 ft at 12:30PM Jul 30, 2014Observed: 2.86 ft at 12:45PM Jul 30, 2014Observed: 2.87 ft at 1:00PM Jul 30, 2014Observed: 2.87 ft at 1:15PM Jul 30, 2014Observed: 2.87 ft at 1:30PM Jul 30, 2014Observed: 2.87 ft at 1:45PM Jul 30, 2014Observed: 2.87 ft at 2:00PM Jul 30, 2014Observed: 2.88 ft at 2:15PM Jul 30, 2014Observed: 2.88 ft at 2:30PM Jul 30, 2014Observed: 2.88 ft at 2:45PM Jul 30, 2014Observed: 2.88 ft at 3:00PM Jul 30, 2014Observed: 2.88 ft at 3:15PM Jul 30, 2014Observed: 2.88 ft at 3:30PM Jul 30, 2014Observed: 2.88 ft at 3:45PM Jul 30, 2014Observed: 2.88 ft at 4:00PM Jul 30, 2014Observed: 2.88 ft at 4:15PM Jul 30, 2014Observed: 2.89 ft at 4:30PM Jul 30, 2014Observed: 2.88 ft at 4:45PM Jul 30, 2014Observed: 2.88 ft at 5:00PM Jul 30, 2014Observed: 2.89 ft at 5:15PM Jul 30, 2014Observed: 2.88 ft at 5:30PM Jul 30, 2014Observed: 2.88 ft at 5:45PM Jul 30, 2014Observed: 2.87 ft at 6:00PM Jul 30, 2014Observed: 2.87 ft at 6:15PM Jul 30, 2014Observed: 2.87 ft at 6:30PM Jul 30, 2014Observed: 2.87 ft at 6:45PM Jul 30, 2014Observed: 2.87 ft at 7:00PM Jul 30, 2014Observed: 2.86 ft at 7:15PM Jul 30, 2014Observed: 2.86 ft at 7:30PM Jul 30, 2014Observed: 2.87 ft at 7:45PM Jul 30, 2014Observed: 2.87 ft at 8:00PM Jul 30, 2014Observed: 2.87 ft at 8:15PM Jul 30, 2014Observed: 2.86 ft at 8:30PM Jul 30, 2014Observed: 2.86 ft at 8:45PM Jul 30, 2014Observed: 2.86 ft at 9:00PM Jul 30, 2014Observed: 2.86 ft at 9:15PM Jul 30, 2014Observed: 2.86 ft at 9:30PM Jul 30, 2014Observed: 2.86 ft at 9:45PM Jul 30, 2014Observed: 2.86 ft at 10:00PM Jul 30, 2014Observed: 2.86 ft at 10:15PM Jul 30, 2014Observed: 2.86 ft at 10:30PM Jul 30, 2014Observed: 2.86 ft at 10:45PM Jul 30, 2014Observed: 2.86 ft at 11:00PM Jul 30, 2014Observed: 2.86 ft at 11:15PM Jul 30, 2014Observed: 2.85 ft at 11:30PM Jul 30, 2014Observed: 2.85 ft at 11:45PM Jul 30, 2014Observed: 2.85 ft at 12:00AM Jul 31, 2014Observed: 2.85 ft at 12:15AM Jul 31, 2014Observed: 2.85 ft at 12:30AM Jul 31, 2014Observed: 2.85 ft at 12:45AM Jul 31, 2014Observed: 2.86 ft at 1:00AM Jul 31, 2014Observed: 2.85 ft at 1:15AM Jul 31, 2014Observed: 2.85 ft at 1:30AM Jul 31, 2014Observed: 2.85 ft at 1:45AM Jul 31, 2014Observed: 2.85 ft at 2:00AM Jul 31, 2014Observed: 2.85 ft at 2:15AM Jul 31, 2014Observed: 2.85 ft at 2:30AM Jul 31, 2014Observed: 2.85 ft at 2:45AM Jul 31, 2014Observed: 2.84 ft at 3:00AM Jul 31, 2014Observed: 2.84 ft at 3:15AM Jul 31, 2014Observed: 2.84 ft at 3:30AM Jul 31, 2014Observed: 2.84 ft at 3:45AM Jul 31, 2014Observed: 2.83 ft at 4:00AM Jul 31, 2014Observed: 2.83 ft at 4:15AM Jul 31, 2014Observed: 2.83 ft at 4:30AM Jul 31, 2014Observed: 2.83 ft at 4:45AM Jul 31, 2014Observed: 2.82 ft at 5:00AM Jul 31, 2014Observed: 2.82 ft at 5:15AM Jul 31, 2014Observed: 2.82 ft at 5:30AM Jul 31, 2014Observed: 2.81 ft at 5:45AM Jul 31, 2014Observed: 2.82 ft at 6:00AM Jul 31, 2014Observed: 2.81 ft at 6:15AM Jul 31, 2014Observed: 2.81 ft at 6:30AM Jul 31, 2014Observed: 2.81 ft at 6:45AM Jul 31, 2014Observed: 2.81 ft at 7:00AM Jul 31, 2014Observed: 2.8 ft at 7:15AM Jul 31, 2014Observed: 2.8 ft at 7:30AM Jul 31, 2014Observed: 2.8 ft at 7:45AM Jul 31, 2014Observed: 2.8 ft at 8:00AM Jul 31, 2014Observed: 2.8 ft at 8:15AM Jul 31, 2014Observed: 2.8 ft at 8:30AM Jul 31, 2014Observed: 2.8 ft at 8:45AM Jul 31, 2014Observed: 2.8 ft at 9:00AM Jul 31, 2014Observed: 2.8 ft at 9:15AM Jul 31, 2014Observed: 2.8 ft at 9:30AM Jul 31, 2014Observed: 2.81 ft at 9:45AM Jul 31, 2014Observed: 2.81 ft at 10:00AM Jul 31, 2014Observed: 2.82 ft at 10:15AM Jul 31, 2014Observed: 2.82 ft at 10:30AM Jul 31, 2014Observed: 2.82 ft at 10:45AM Jul 31, 2014Observed: 2.82 ft at 11:00AM Jul 31, 2014Observed: 2.83 ft at 11:15AM Jul 31, 2014Observed: 2.83 ft at 11:30AM Jul 31, 2014Observed: 2.84 ft at 11:45AM Jul 31, 2014Observed: 2.84 ft at 12:00PM Jul 31, 2014Observed: 2.84 ft at 12:15PM Jul 31, 2014Observed: 2.84 ft at 12:30PM Jul 31, 2014Observed: 2.85 ft at 12:45PM Jul 31, 2014Observed: 2.85 ft at 1:00PM Jul 31, 2014Observed: 2.85 ft at 1:15PM Jul 31, 2014Observed: 2.85 ft at 1:30PM Jul 31, 2014Observed: 2.85 ft at 1:45PM Jul 31, 2014Observed: 2.85 ft at 2:00PM Jul 31, 2014Observed: 2.86 ft at 2:15PM Jul 31, 2014Observed: 2.86 ft at 2:30PM Jul 31, 2014Observed: 2.86 ft at 2:45PM Jul 31, 2014Observed: 2.86 ft at 3:00PM Jul 31, 2014Observed: 2.86 ft at 3:15PM Jul 31, 2014Observed: 2.86 ft at 3:30PM Jul 31, 2014Observed: 2.86 ft at 3:45PM Jul 31, 2014Observed: 2.85 ft at 4:00PM Jul 31, 2014Forecast: 2.78 ft 5:00PM Jul 31, 2014Forecast: 2.8 ft 11:00PM Jul 31, 2014Forecast: 2.81 ft 5:00AM Aug 01, 2014Forecast: 2.82 ft 11:00AM Aug 01, 2014Forecast: 2.84 ft 5:00PM Aug 01, 2014Forecast: 2.85 ft 11:00PM Aug 01, 2014Forecast: 2.87 ft 5:00AM Aug 02, 2014Forecast: 2.89 ft 11:00AM Aug 02, 2014Highest Forecast: 2.91 ft 5:00PM Aug 02, 2014Highest Forecast: 2.91 ft 11:00PM Aug 02, 2014Highest Forecast: 2.91 ft 5:00AM Aug 03, 2014Highest Forecast: 2.91 ft 11:00AM Aug 03, 2014Forecast: 2.9 ft 5:00PM Aug 03, 2014Forecast: 2.9 ft 11:00PM Aug 03, 2014Forecast: 2.89 ft 5:00AM Aug 04, 2014Forecast: 2.89 ft 11:00AM Aug 04, 2014Forecast: 2.88 ft 5:00PM Aug 04, 2014Forecast: 2.88 ft 11:00PM Aug 04, 2014Forecast: 2.87 ft 5:00AM Aug 05, 2014Forecast: 2.87 ft 11:00AM Aug 05, 2014USGS--Water Resources of the United StatesWSLO3(plotting HGIRG) Graph Created (4:34PM Jul 31, 2014)ObservedForecast (issued 7:51AM Jul 31)Latest observed value: 2.85 ft at 4:00 PM PDT 31-Jul-2014. Flood Stage is 13.5 ft
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NOTE: Forecasts for the Tualatin River at West Linn are issued routinely year-round.
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Upstream Gauge - at Tualatin Upstream Gauge Downstream Gauge Downstream Gauge - above Falls at Oregon City
Flood Categories (in feet)
Major Flood Stage:15
Moderate Flood Stage:0
Flood Stage:13.5
Action Stage:11

Historical 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 01/02/1997
(5) 16.31 ft on 01/18/1974
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(P): Preliminary values subject to further review.

Low Water Records
Zoom Level:16
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
18 Above 18.0 ft, 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 Above 17.0 ft, 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 Above 16.0 ft, 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 Above 15.0 ft, 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 Above 14.5 ft, 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 Above 13.5 ft, 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 Above 11.0 ft, Some localized lowland flooding is possible.
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 ft 99.11 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:

Additional Information Collapse
Archived/Historical Data at USACE DataQuery
10-day Forecast/Trend, Northwest River Forecast Center
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Hydrologic Resources Additional Resources
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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
Portland Weather Forecast Office
5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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Page last modified: 16-Jul-2014 2:05 AM
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