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Hydrograph River at a Glance Download
Tualatin River at West Linn Stage (ft)Flow (cfs)Highest Observation: 4.96 ft at 7:30PM Apr 13, 2014Highest Observation: 4.96 ft at 7:45PM Apr 13, 2014Highest Observation: 4.96 ft at 8:00PM Apr 13, 2014Highest Observation: 4.96 ft at 8:15PM Apr 13, 2014Highest Observation: 4.96 ft at 8:30PM Apr 13, 2014Observed: 4.95 ft at 8:45PM Apr 13, 2014Observed: 4.95 ft at 9:00PM Apr 13, 2014Observed: 4.95 ft at 9:15PM Apr 13, 2014Observed: 4.95 ft at 9:30PM Apr 13, 2014Observed: 4.94 ft at 9:45PM Apr 13, 2014Observed: 4.94 ft at 10:00PM Apr 13, 2014Observed: 4.94 ft at 10:15PM Apr 13, 2014Observed: 4.95 ft at 10:30PM Apr 13, 2014Observed: 4.94 ft at 10:45PM Apr 13, 2014Observed: 4.94 ft at 11:00PM Apr 13, 2014Observed: 4.94 ft at 11:15PM Apr 13, 2014Observed: 4.93 ft at 11:30PM Apr 13, 2014Observed: 4.93 ft at 11:45PM Apr 13, 2014Observed: 4.93 ft at 12:00AM Apr 14, 2014Observed: 4.93 ft at 12:15AM Apr 14, 2014Observed: 4.92 ft at 12:30AM Apr 14, 2014Observed: 4.92 ft at 12:45AM Apr 14, 2014Observed: 4.92 ft at 1:00AM Apr 14, 2014Observed: 4.92 ft at 1:15AM Apr 14, 2014Observed: 4.91 ft at 1:30AM Apr 14, 2014Observed: 4.91 ft at 1:45AM Apr 14, 2014Observed: 4.91 ft at 2:00AM Apr 14, 2014Observed: 4.91 ft at 2:15AM Apr 14, 2014Observed: 4.91 ft at 2:30AM Apr 14, 2014Observed: 4.91 ft at 2:45AM Apr 14, 2014Observed: 4.91 ft at 3:00AM Apr 14, 2014Observed: 4.9 ft at 3:15AM Apr 14, 2014Observed: 4.9 ft at 3:30AM Apr 14, 2014Observed: 4.9 ft at 3:45AM Apr 14, 2014Observed: 4.9 ft at 4:00AM Apr 14, 2014Observed: 4.9 ft at 4:15AM Apr 14, 2014Observed: 4.89 ft at 4:30AM Apr 14, 2014Observed: 4.89 ft at 4:45AM Apr 14, 2014Observed: 4.89 ft at 5:00AM Apr 14, 2014Observed: 4.89 ft at 5:15AM Apr 14, 2014Observed: 4.88 ft at 5:30AM Apr 14, 2014Observed: 4.88 ft at 5:45AM Apr 14, 2014Observed: 4.87 ft at 6:00AM Apr 14, 2014Observed: 4.87 ft at 6:15AM Apr 14, 2014Observed: 4.87 ft at 6:30AM Apr 14, 2014Observed: 4.87 ft at 6:45AM Apr 14, 2014Observed: 4.86 ft at 7:00AM Apr 14, 2014Observed: 4.86 ft at 7:15AM Apr 14, 2014Observed: 4.86 ft at 7:30AM Apr 14, 2014Observed: 4.86 ft at 7:45AM Apr 14, 2014Observed: 4.86 ft at 8:00AM Apr 14, 2014Observed: 4.85 ft at 8:15AM Apr 14, 2014Observed: 4.85 ft at 8:30AM Apr 14, 2014Observed: 4.85 ft at 8:45AM Apr 14, 2014Observed: 4.85 ft at 9:00AM Apr 14, 2014Observed: 4.85 ft at 9:15AM Apr 14, 2014Observed: 4.84 ft at 9:30AM Apr 14, 2014Observed: 4.84 ft at 9:45AM Apr 14, 2014Observed: 4.84 ft at 10:00AM Apr 14, 2014Observed: 4.84 ft at 10:15AM Apr 14, 2014Observed: 4.84 ft at 10:30AM Apr 14, 2014Observed: 4.84 ft at 10:45AM Apr 14, 2014Observed: 4.84 ft at 11:00AM Apr 14, 2014Observed: 4.83 ft at 11:15AM Apr 14, 2014Observed: 4.84 ft at 11:30AM Apr 14, 2014Observed: 4.84 ft at 11:45AM Apr 14, 2014Observed: 4.84 ft at 12:00PM Apr 14, 2014Observed: 4.83 ft at 12:15PM Apr 14, 2014Observed: 4.83 ft at 12:30PM Apr 14, 2014Observed: 4.84 ft at 12:45PM Apr 14, 2014Observed: 4.83 ft at 1:00PM Apr 14, 2014Observed: 4.83 ft at 1:15PM Apr 14, 2014Observed: 4.83 ft at 1:30PM Apr 14, 2014Observed: 4.82 ft at 1:45PM Apr 14, 2014Observed: 4.82 ft at 2:00PM Apr 14, 2014Observed: 4.82 ft at 2:15PM Apr 14, 2014Observed: 4.82 ft at 2:30PM Apr 14, 2014Observed: 4.81 ft at 2:45PM Apr 14, 2014Observed: 4.81 ft at 3:00PM Apr 14, 2014Observed: 4.81 ft at 3:15PM Apr 14, 2014Observed: 4.81 ft at 3:30PM Apr 14, 2014Observed: 4.81 ft at 3:45PM Apr 14, 2014Observed: 4.81 ft at 4:00PM Apr 14, 2014Observed: 4.8 ft at 4:15PM Apr 14, 2014Observed: 4.8 ft at 4:30PM Apr 14, 2014Observed: 4.8 ft at 4:45PM Apr 14, 2014Observed: 4.8 ft at 5:00PM Apr 14, 2014Observed: 4.8 ft at 5:15PM Apr 14, 2014Observed: 4.8 ft at 5:30PM Apr 14, 2014Observed: 4.79 ft at 5:45PM Apr 14, 2014Observed: 4.79 ft at 6:00PM Apr 14, 2014Observed: 4.79 ft at 6:15PM Apr 14, 2014Observed: 4.79 ft at 6:30PM Apr 14, 2014Observed: 4.79 ft at 6:45PM Apr 14, 2014Observed: 4.79 ft at 7:00PM Apr 14, 2014Observed: 4.79 ft at 7:15PM Apr 14, 2014Observed: 4.79 ft at 7:30PM Apr 14, 2014Observed: 4.79 ft at 7:45PM Apr 14, 2014Observed: 4.78 ft at 8:00PM Apr 14, 2014Observed: 4.78 ft at 8:15PM Apr 14, 2014Observed: 4.78 ft at 8:30PM Apr 14, 2014Observed: 4.78 ft at 8:45PM Apr 14, 2014Observed: 4.77 ft at 9:00PM Apr 14, 2014Observed: 4.77 ft at 9:15PM Apr 14, 2014Observed: 4.77 ft at 9:30PM Apr 14, 2014Observed: 4.77 ft at 9:45PM Apr 14, 2014Observed: 4.77 ft at 10:00PM Apr 14, 2014Observed: 4.77 ft at 10:15PM Apr 14, 2014Observed: 4.77 ft at 10:30PM Apr 14, 2014Observed: 4.76 ft at 10:45PM Apr 14, 2014Observed: 4.76 ft at 11:00PM Apr 14, 2014Observed: 4.76 ft at 11:15PM Apr 14, 2014Observed: 4.76 ft at 11:30PM Apr 14, 2014Observed: 4.76 ft at 11:45PM Apr 14, 2014Observed: 4.75 ft at 12:00AM Apr 15, 2014Observed: 4.75 ft at 12:15AM Apr 15, 2014Observed: 4.75 ft at 12:30AM Apr 15, 2014Observed: 4.75 ft at 12:45AM Apr 15, 2014Observed: 4.75 ft at 1:00AM Apr 15, 2014Observed: 4.75 ft at 1:15AM Apr 15, 2014Observed: 4.74 ft at 1:30AM Apr 15, 2014Observed: 4.74 ft at 1:45AM Apr 15, 2014Observed: 4.74 ft at 2:00AM Apr 15, 2014Observed: 4.73 ft at 2:15AM Apr 15, 2014Observed: 4.73 ft at 2:30AM Apr 15, 2014Observed: 4.73 ft at 2:45AM Apr 15, 2014Observed: 4.73 ft at 3:00AM Apr 15, 2014Observed: 4.72 ft at 3:15AM Apr 15, 2014Observed: 4.72 ft at 3:30AM Apr 15, 2014Observed: 4.72 ft at 3:45AM Apr 15, 2014Observed: 4.72 ft at 4:00AM Apr 15, 2014Observed: 4.72 ft at 4:15AM Apr 15, 2014Observed: 4.72 ft at 4:30AM Apr 15, 2014Observed: 4.71 ft at 4:45AM Apr 15, 2014Observed: 4.71 ft at 5:00AM Apr 15, 2014Observed: 4.71 ft at 5:15AM Apr 15, 2014Observed: 4.71 ft at 5:30AM Apr 15, 2014Observed: 4.71 ft at 5:45AM Apr 15, 2014Observed: 4.7 ft at 6:00AM Apr 15, 2014Observed: 4.7 ft at 6:15AM Apr 15, 2014Observed: 4.7 ft at 6:30AM Apr 15, 2014Observed: 4.7 ft at 6:45AM Apr 15, 2014Observed: 4.69 ft at 7:00AM Apr 15, 2014Observed: 4.69 ft at 7:15AM Apr 15, 2014Observed: 4.69 ft at 7:30AM Apr 15, 2014Observed: 4.69 ft at 7:45AM Apr 15, 2014Observed: 4.69 ft at 8:00AM Apr 15, 2014Observed: 4.69 ft at 8:15AM Apr 15, 2014Observed: 4.68 ft at 8:30AM Apr 15, 2014Observed: 4.68 ft at 8:45AM Apr 15, 2014Observed: 4.68 ft at 9:00AM Apr 15, 2014Observed: 4.68 ft at 9:15AM Apr 15, 2014Observed: 4.68 ft at 9:30AM Apr 15, 2014Observed: 4.69 ft at 9:45AM Apr 15, 2014Observed: 4.68 ft at 10:00AM Apr 15, 2014Observed: 4.68 ft at 10:15AM Apr 15, 2014Observed: 4.68 ft at 10:30AM Apr 15, 2014Observed: 4.68 ft at 10:45AM Apr 15, 2014Observed: 4.68 ft at 11:00AM Apr 15, 2014Observed: 4.68 ft at 11:15AM Apr 15, 2014Observed: 4.68 ft at 11:30AM Apr 15, 2014Observed: 4.67 ft at 11:45AM Apr 15, 2014Observed: 4.67 ft at 12:00PM Apr 15, 2014Observed: 4.67 ft at 12:15PM Apr 15, 2014Observed: 4.67 ft at 12:30PM Apr 15, 2014Observed: 4.67 ft at 12:45PM Apr 15, 2014Observed: 4.67 ft at 1:00PM Apr 15, 2014Observed: 4.67 ft at 1:15PM Apr 15, 2014Observed: 4.67 ft at 1:30PM Apr 15, 2014Observed: 4.67 ft at 1:45PM Apr 15, 2014Observed: 4.67 ft at 2:00PM Apr 15, 2014Observed: 4.66 ft at 2:15PM Apr 15, 2014Observed: 4.66 ft at 2:30PM Apr 15, 2014Observed: 4.66 ft at 2:45PM Apr 15, 2014Observed: 4.66 ft at 3:00PM Apr 15, 2014Observed: 4.66 ft at 3:15PM Apr 15, 2014Observed: 4.66 ft at 3:30PM Apr 15, 2014Observed: 4.65 ft at 3:45PM Apr 15, 2014Observed: 4.65 ft at 4:00PM Apr 15, 2014Observed: 4.65 ft at 4:15PM Apr 15, 2014Observed: 4.65 ft at 4:30PM Apr 15, 2014Observed: 4.65 ft at 4:45PM Apr 15, 2014Observed: 4.65 ft at 5:00PM Apr 15, 2014Observed: 4.65 ft at 5:15PM Apr 15, 2014Observed: 4.65 ft at 5:30PM Apr 15, 2014Observed: 4.64 ft at 5:45PM Apr 15, 2014Observed: 4.64 ft at 6:00PM Apr 15, 2014Observed: 4.64 ft at 6:15PM Apr 15, 2014Observed: 4.64 ft at 6:30PM Apr 15, 2014Observed: 4.64 ft at 6:45PM Apr 15, 2014Observed: 4.64 ft at 7:00PM Apr 15, 2014Observed: 4.64 ft at 7:15PM Apr 15, 2014Observed: 4.64 ft at 7:30PM Apr 15, 2014Observed: 4.64 ft at 7:45PM Apr 15, 2014Observed: 4.63 ft at 8:00PM Apr 15, 2014Observed: 4.63 ft at 8:15PM Apr 15, 2014Observed: 4.63 ft at 8:30PM Apr 15, 2014Observed: 4.63 ft at 8:45PM Apr 15, 2014Observed: 4.63 ft at 9:00PM Apr 15, 2014Observed: 4.63 ft at 9:15PM Apr 15, 2014Observed: 4.63 ft at 9:30PM Apr 15, 2014Observed: 4.63 ft at 9:45PM Apr 15, 2014Observed: 4.63 ft at 10:00PM Apr 15, 2014Observed: 4.63 ft at 10:15PM Apr 15, 2014Observed: 4.63 ft at 10:30PM Apr 15, 2014Observed: 4.63 ft at 10:45PM Apr 15, 2014Observed: 4.63 ft at 11:00PM Apr 15, 2014Observed: 4.63 ft at 11:15PM Apr 15, 2014Observed: 4.63 ft at 11:30PM Apr 15, 2014Observed: 4.63 ft at 11:45PM Apr 15, 2014Observed: 4.63 ft at 12:00AM Apr 16, 2014Observed: 4.63 ft at 12:15AM Apr 16, 2014Observed: 4.63 ft at 12:30AM Apr 16, 2014Observed: 4.63 ft at 12:45AM Apr 16, 2014Observed: 4.64 ft at 1:00AM Apr 16, 2014Observed: 4.63 ft at 1:15AM Apr 16, 2014Observed: 4.63 ft at 1:30AM Apr 16, 2014Observed: 4.63 ft at 1:45AM Apr 16, 2014Observed: 4.63 ft at 2:00AM Apr 16, 2014Observed: 4.62 ft at 2:15AM Apr 16, 2014Observed: 4.62 ft at 2:30AM Apr 16, 2014Observed: 4.62 ft at 2:45AM Apr 16, 2014Observed: 4.62 ft at 3:00AM Apr 16, 2014Observed: 4.62 ft at 3:15AM Apr 16, 2014Observed: 4.62 ft at 3:30AM Apr 16, 2014Observed: 4.62 ft at 3:45AM Apr 16, 2014Observed: 4.62 ft at 4:00AM Apr 16, 2014Observed: 4.62 ft at 4:15AM Apr 16, 2014Observed: 4.61 ft at 4:30AM Apr 16, 2014Observed: 4.61 ft at 4:45AM Apr 16, 2014Observed: 4.61 ft at 5:00AM Apr 16, 2014Observed: 4.61 ft at 5:15AM Apr 16, 2014Observed: 4.61 ft at 5:30AM Apr 16, 2014Observed: 4.61 ft at 5:45AM Apr 16, 2014Observed: 4.6 ft at 6:00AM Apr 16, 2014Observed: 4.6 ft at 6:15AM Apr 16, 2014Observed: 4.6 ft at 6:30AM Apr 16, 2014Observed: 4.6 ft at 6:45AM Apr 16, 2014Observed: 4.61 ft at 7:00AM Apr 16, 2014Observed: 4.6 ft at 7:15AM Apr 16, 2014Observed: 4.6 ft at 7:30AM Apr 16, 2014Observed: 4.6 ft at 7:45AM Apr 16, 2014Observed: 4.6 ft at 8:00AM Apr 16, 2014Observed: 4.6 ft at 8:15AM Apr 16, 2014Observed: 4.6 ft at 8:30AM Apr 16, 2014Observed: 4.6 ft at 8:45AM Apr 16, 2014Observed: 4.6 ft at 9:00AM Apr 16, 2014Observed: 4.6 ft at 9:15AM Apr 16, 2014Observed: 4.6 ft at 9:30AM Apr 16, 2014Observed: 4.6 ft at 9:45AM Apr 16, 2014Observed: 4.6 ft at 10:00AM Apr 16, 2014Observed: 4.6 ft at 10:15AM Apr 16, 2014Observed: 4.6 ft at 10:30AM Apr 16, 2014Observed: 4.6 ft at 10:45AM Apr 16, 2014Observed: 4.6 ft at 11:00AM Apr 16, 2014Observed: 4.6 ft at 11:15AM Apr 16, 2014Observed: 4.6 ft at 11:30AM Apr 16, 2014Observed: 4.6 ft at 11:45AM Apr 16, 2014Observed: 4.6 ft at 12:00PM Apr 16, 2014Observed: 4.61 ft at 12:15PM Apr 16, 2014Observed: 4.6 ft at 12:30PM Apr 16, 2014Observed: 4.6 ft at 12:45PM Apr 16, 2014Observed: 4.6 ft at 1:00PM Apr 16, 2014Observed: 4.6 ft at 1:15PM Apr 16, 2014Observed: 4.6 ft at 1:30PM Apr 16, 2014Observed: 4.6 ft at 1:45PM Apr 16, 2014Observed: 4.6 ft at 2:00PM Apr 16, 2014Observed: 4.6 ft at 2:15PM Apr 16, 2014Observed: 4.6 ft at 2:30PM Apr 16, 2014Observed: 4.6 ft at 2:45PM Apr 16, 2014Observed: 4.59 ft at 3:00PM Apr 16, 2014Observed: 4.59 ft at 3:15PM Apr 16, 2014Observed: 4.6 ft at 3:30PM Apr 16, 2014Observed: 4.59 ft at 3:45PM Apr 16, 2014Observed: 4.59 ft at 4:00PM Apr 16, 2014Observed: 4.59 ft at 4:15PM Apr 16, 2014Observed: 4.58 ft at 4:30PM Apr 16, 2014Observed: 4.59 ft at 4:45PM Apr 16, 2014Observed: 4.59 ft at 5:00PM Apr 16, 2014Observed: 4.58 ft at 5:15PM Apr 16, 2014Observed: 4.58 ft at 5:30PM Apr 16, 2014Observed: 4.58 ft at 5:45PM Apr 16, 2014Observed: 4.59 ft at 6:00PM Apr 16, 2014Observed: 4.58 ft at 6:15PM Apr 16, 2014Observed: 4.58 ft at 6:30PM Apr 16, 2014Observed: 4.58 ft at 6:45PM Apr 16, 2014Observed: 4.58 ft at 7:00PM Apr 16, 2014Observed: 4.58 ft at 7:15PM Apr 16, 2014Observed: 4.58 ft at 7:30PM Apr 16, 2014Observed: 4.58 ft at 7:45PM Apr 16, 2014Observed: 4.58 ft at 8:00PM Apr 16, 2014Observed: 4.57 ft at 8:15PM Apr 16, 2014Observed: 4.58 ft at 8:30PM Apr 16, 2014Observed: 4.57 ft at 8:45PM Apr 16, 2014Observed: 4.58 ft at 9:00PM Apr 16, 2014Observed: 4.57 ft at 9:15PM Apr 16, 2014Observed: 4.58 ft at 9:30PM Apr 16, 2014Observed: 4.57 ft at 9:45PM Apr 16, 2014Observed: 4.57 ft at 10:00PM Apr 16, 2014Observed: 4.58 ft at 10:15PM Apr 16, 2014Observed: 4.57 ft at 10:30PM Apr 16, 2014Observed: 4.58 ft at 10:45PM Apr 16, 2014Observed: 4.57 ft at 11:00PM Apr 16, 2014Observed: 4.57 ft at 11:15PM Apr 16, 2014Observed: 4.57 ft at 11:30PM Apr 16, 2014Observed: 4.57 ft at 11:45PM Apr 16, 2014Observed: 4.57 ft at 12:00AM Apr 17, 2014Observed: 4.57 ft at 12:15AM Apr 17, 2014Observed: 4.57 ft at 12:30AM Apr 17, 2014Observed: 4.57 ft at 12:45AM Apr 17, 2014Observed: 4.57 ft at 1:00AM Apr 17, 2014Observed: 4.57 ft at 1:15AM Apr 17, 2014Observed: 4.57 ft at 1:30AM Apr 17, 2014Observed: 4.58 ft at 1:45AM Apr 17, 2014Observed: 4.57 ft at 2:00AM Apr 17, 2014Observed: 4.58 ft at 2:15AM Apr 17, 2014Observed: 4.58 ft at 2:30AM Apr 17, 2014Observed: 4.58 ft at 2:45AM Apr 17, 2014Observed: 4.58 ft at 3:00AM Apr 17, 2014Observed: 4.58 ft at 3:15AM Apr 17, 2014Observed: 4.58 ft at 3:30AM Apr 17, 2014Observed: 4.57 ft at 3:45AM Apr 17, 2014Observed: 4.57 ft at 4:00AM Apr 17, 2014Observed: 4.57 ft at 4:15AM Apr 17, 2014Observed: 4.58 ft at 4:30AM Apr 17, 2014Observed: 4.58 ft at 4:45AM Apr 17, 2014Observed: 4.58 ft at 5:00AM Apr 17, 2014Observed: 4.58 ft at 5:15AM Apr 17, 2014Observed: 4.58 ft at 5:30AM Apr 17, 2014Observed: 4.58 ft at 5:45AM Apr 17, 2014Observed: 4.58 ft at 6:00AM Apr 17, 2014Observed: 4.58 ft at 6:15AM Apr 17, 2014Observed: 4.58 ft at 6:30AM Apr 17, 2014Observed: 4.58 ft at 6:45AM Apr 17, 2014Observed: 4.58 ft at 7:00AM Apr 17, 2014Observed: 4.58 ft at 7:15AM Apr 17, 2014Observed: 4.58 ft at 7:30AM Apr 17, 2014Observed: 4.58 ft at 7:45AM Apr 17, 2014Observed: 4.58 ft at 8:00AM Apr 17, 2014Observed: 4.58 ft at 8:15AM Apr 17, 2014Observed: 4.59 ft at 8:30AM Apr 17, 2014Observed: 4.6 ft at 8:45AM Apr 17, 2014Observed: 4.59 ft at 9:00AM Apr 17, 2014Observed: 4.6 ft at 9:15AM Apr 17, 2014Observed: 4.6 ft at 9:30AM Apr 17, 2014Observed: 4.61 ft at 9:45AM Apr 17, 2014Observed: 4.61 ft at 10:00AM Apr 17, 2014Observed: 4.61 ft at 10:15AM Apr 17, 2014Observed: 4.62 ft at 10:30AM Apr 17, 2014Observed: 4.62 ft at 10:45AM Apr 17, 2014Observed: 4.62 ft at 11:00AM Apr 17, 2014Observed: 4.63 ft at 11:15AM Apr 17, 2014Observed: 4.63 ft at 11:30AM Apr 17, 2014Observed: 4.64 ft at 11:45AM Apr 17, 2014Observed: 4.64 ft at 12:00PM Apr 17, 2014Observed: 4.64 ft at 12:15PM Apr 17, 2014Observed: 4.64 ft at 12:30PM Apr 17, 2014Observed: 4.65 ft at 12:45PM Apr 17, 2014Observed: 4.66 ft at 1:00PM Apr 17, 2014Observed: 4.67 ft at 1:15PM Apr 17, 2014Observed: 4.67 ft at 1:30PM Apr 17, 2014Observed: 4.67 ft at 1:45PM Apr 17, 2014Observed: 4.68 ft at 2:00PM Apr 17, 2014Observed: 4.69 ft at 2:15PM Apr 17, 2014Observed: 4.7 ft at 2:30PM Apr 17, 2014Observed: 4.71 ft at 2:45PM Apr 17, 2014Observed: 4.71 ft at 3:00PM Apr 17, 2014Observed: 4.72 ft at 3:15PM Apr 17, 2014Observed: 4.73 ft at 3:30PM Apr 17, 2014Observed: 4.73 ft at 3:45PM Apr 17, 2014Observed: 4.75 ft at 4:00PM Apr 17, 2014Observed: 4.75 ft at 4:15PM Apr 17, 2014Observed: 4.76 ft at 4:30PM Apr 17, 2014Observed: 4.77 ft at 4:45PM Apr 17, 2014Observed: 4.77 ft at 5:00PM Apr 17, 2014Observed: 4.78 ft at 5:15PM Apr 17, 2014Observed: 4.79 ft at 5:30PM Apr 17, 2014Observed: 4.78 ft at 5:45PM Apr 17, 2014Observed: 4.8 ft at 6:00PM Apr 17, 2014Observed: 4.8 ft at 6:15PM Apr 17, 2014Observed: 4.8 ft at 6:30PM Apr 17, 2014Observed: 4.81 ft at 6:45PM Apr 17, 2014Observed: 4.81 ft at 7:00PM Apr 17, 2014Observed: 4.83 ft at 7:15PM Apr 17, 2014Observed: 4.83 ft at 7:30PM Apr 17, 2014Observed: 4.84 ft at 7:45PM Apr 17, 2014Observed: 4.84 ft at 8:00PM Apr 17, 2014Observed: 4.85 ft at 8:15PM Apr 17, 2014Observed: 4.84 ft at 8:30PM Apr 17, 2014Observed: 4.85 ft at 8:45PM Apr 17, 2014Observed: 4.85 ft at 9:00PM Apr 17, 2014Observed: 4.85 ft at 9:15PM Apr 17, 2014Observed: 4.86 ft at 9:30PM Apr 17, 2014Observed: 4.86 ft at 9:45PM Apr 17, 2014Observed: 4.86 ft at 10:00PM Apr 17, 2014Observed: 4.86 ft at 10:15PM Apr 17, 2014Observed: 4.86 ft at 10:30PM Apr 17, 2014Observed: 4.86 ft at 10:45PM Apr 17, 2014Observed: 4.86 ft at 11:00PM Apr 17, 2014Observed: 4.86 ft at 11:15PM Apr 17, 2014Observed: 4.85 ft at 11:30PM Apr 17, 2014Observed: 4.86 ft at 11:45PM Apr 17, 2014Observed: 4.86 ft at 12:00AM Apr 18, 2014Observed: 4.86 ft at 12:15AM Apr 18, 2014Observed: 4.86 ft at 12:30AM Apr 18, 2014Observed: 4.86 ft at 12:45AM Apr 18, 2014Observed: 4.86 ft at 1:00AM Apr 18, 2014Observed: 4.86 ft at 1:15AM Apr 18, 2014Observed: 4.86 ft at 1:30AM Apr 18, 2014Observed: 4.85 ft at 1:45AM Apr 18, 2014Observed: 4.86 ft at 2:00AM Apr 18, 2014Observed: 4.85 ft at 2:15AM Apr 18, 2014Observed: 4.86 ft at 2:30AM Apr 18, 2014Observed: 4.85 ft at 2:45AM Apr 18, 2014Observed: 4.85 ft at 3:00AM Apr 18, 2014Observed: 4.85 ft at 3:15AM Apr 18, 2014Observed: 4.85 ft at 3:30AM Apr 18, 2014Observed: 4.85 ft at 3:45AM Apr 18, 2014Observed: 4.84 ft at 4:00AM Apr 18, 2014Observed: 4.84 ft at 4:15AM Apr 18, 2014Observed: 4.84 ft at 4:30AM Apr 18, 2014Observed: 4.84 ft at 4:45AM Apr 18, 2014Observed: 4.84 ft at 5:00AM Apr 18, 2014Observed: 4.84 ft at 5:15AM Apr 18, 2014Observed: 4.84 ft at 5:30AM Apr 18, 2014Observed: 4.83 ft at 5:45AM Apr 18, 2014Observed: 4.83 ft at 6:00AM Apr 18, 2014Observed: 4.83 ft at 6:15AM Apr 18, 2014Observed: 4.83 ft at 6:30AM Apr 18, 2014Observed: 4.83 ft at 6:45AM Apr 18, 2014Observed: 4.83 ft at 7:00AM Apr 18, 2014Observed: 4.83 ft at 7:15AM Apr 18, 2014Observed: 4.83 ft at 7:30AM Apr 18, 2014Observed: 4.83 ft at 7:45AM Apr 18, 2014Observed: 4.83 ft at 8:00AM Apr 18, 2014Observed: 4.83 ft at 8:15AM Apr 18, 2014Observed: 4.83 ft at 8:30AM Apr 18, 2014Observed: 4.83 ft at 8:45AM Apr 18, 2014Observed: 4.83 ft at 9:00AM Apr 18, 2014Observed: 4.83 ft at 9:15AM Apr 18, 2014Observed: 4.83 ft at 9:30AM Apr 18, 2014Observed: 4.83 ft at 9:45AM Apr 18, 2014Observed: 4.83 ft at 10:00AM Apr 18, 2014Observed: 4.83 ft at 10:15AM Apr 18, 2014Observed: 4.83 ft at 10:30AM Apr 18, 2014Observed: 4.84 ft at 10:45AM Apr 18, 2014Observed: 4.84 ft at 11:00AM Apr 18, 2014Observed: 4.84 ft at 11:15AM Apr 18, 2014Observed: 4.84 ft at 11:30AM Apr 18, 2014Observed: 4.84 ft at 11:45AM Apr 18, 2014Observed: 4.85 ft at 12:00PM Apr 18, 2014Observed: 4.84 ft at 12:15PM Apr 18, 2014Observed: 4.85 ft at 12:30PM Apr 18, 2014Observed: 4.85 ft at 12:45PM Apr 18, 2014Observed: 4.85 ft at 1:00PM Apr 18, 2014Observed: 4.85 ft at 1:15PM Apr 18, 2014Observed: 4.85 ft at 1:30PM Apr 18, 2014Observed: 4.85 ft at 1:45PM Apr 18, 2014Observed: 4.85 ft at 2:00PM Apr 18, 2014Observed: 4.85 ft at 2:15PM Apr 18, 2014Observed: 4.85 ft at 2:30PM Apr 18, 2014Observed: 4.85 ft at 2:45PM Apr 18, 2014Observed: 4.85 ft at 3:00PM Apr 18, 2014Observed: 4.85 ft at 3:15PM Apr 18, 2014Observed: 4.85 ft at 3:30PM Apr 18, 2014Observed: 4.85 ft at 3:45PM Apr 18, 2014Observed: 4.85 ft at 4:00PM Apr 18, 2014Observed: 4.85 ft at 4:15PM Apr 18, 2014Observed: 4.85 ft at 4:30PM Apr 18, 2014Observed: 4.85 ft at 4:45PM Apr 18, 2014Observed: 4.85 ft at 5:00PM Apr 18, 2014Observed: 4.85 ft at 5:15PM Apr 18, 2014Observed: 4.85 ft at 5:30PM Apr 18, 2014Observed: 4.85 ft at 5:45PM Apr 18, 2014Observed: 4.85 ft at 6:00PM Apr 18, 2014Forecast: 4.76 ft 11:00PM Apr 18, 2014Forecast: 4.78 ft 5:00AM Apr 19, 2014Forecast: 4.81 ft 11:00AM Apr 19, 2014Forecast: 4.82 ft 5:00PM Apr 19, 2014Forecast: 4.84 ft 11:00PM Apr 19, 2014Highest Forecast: 4.87 ft 5:00AM Apr 20, 2014Forecast: 4.85 ft 11:00AM Apr 20, 2014Forecast: 4.81 ft 5:00PM Apr 20, 2014Forecast: 4.78 ft 11:00PM Apr 20, 2014Forecast: 4.74 ft 5:00AM Apr 21, 2014Forecast: 4.71 ft 11:00AM Apr 21, 2014Forecast: 4.68 ft 5:00PM Apr 21, 2014Forecast: 4.65 ft 11:00PM Apr 21, 2014Forecast: 4.62 ft 5:00AM Apr 22, 2014Forecast: 4.58 ft 11:00AM Apr 22, 2014Forecast: 4.55 ft 5:00PM Apr 22, 2014Forecast: 4.52 ft 11:00PM Apr 22, 2014Forecast: 4.46 ft 5:00AM Apr 23, 2014Forecast: 4.4 ft 11:00AM Apr 23, 2014Forecast: 4.36 ft 5:00PM Apr 23, 2014USGS--Water Resources of the United StatesWSLO3(plotting HGIRG) Graph Created (7:19PM Apr 18, 2014)ObservedForecast (issued 9:15AM Apr 18)Latest observed value: 4.85 ft at 6:00 PM PDT 18-Apr-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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Low Water Records
Zoom Level: 16
Gauge Location
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
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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: 8-Apr-2014 5:35 AM
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