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Hydrograph River at a Glance Download
Snohomish River at Snohomish Stage (ft)Flow (kcfs)Observed: 15.25 ft at 11:15AM May 19, 2022Observed: 15.08 ft at 11:30AM May 19, 2022Observed: 14.88 ft at 11:45AM May 19, 2022Observed: 14.71 ft at 12:00PM May 19, 2022Observed: 14.56 ft at 12:15PM May 19, 2022Observed: 14.39 ft at 12:30PM May 19, 2022Observed: 14.24 ft at 12:45PM May 19, 2022Observed: 14.1 ft at 1:00PM May 19, 2022Observed: 13.96 ft at 1:15PM May 19, 2022Observed: 13.84 ft at 1:30PM May 19, 2022Observed: 13.74 ft at 1:45PM May 19, 2022Observed: 13.62 ft at 2:00PM May 19, 2022Observed: 13.54 ft at 2:15PM May 19, 2022Observed: 13.45 ft at 2:30PM May 19, 2022Observed: 13.35 ft at 2:45PM May 19, 2022Observed: 13.29 ft at 3:00PM May 19, 2022Observed: 13.25 ft at 3:15PM May 19, 2022Observed: 13.18 ft at 3:30PM May 19, 2022Observed: 13.13 ft at 3:45PM May 19, 2022Observed: 13.09 ft at 4:00PM May 19, 2022Observed: 13.06 ft at 4:15PM May 19, 2022Observed: 13.01 ft at 4:30PM May 19, 2022Observed: 12.98 ft at 4:45PM May 19, 2022Observed: 12.97 ft at 5:00PM May 19, 2022Observed: 12.91 ft at 5:15PM May 19, 2022Observed: 12.9 ft at 5:30PM May 19, 2022Observed: 12.9 ft at 5:45PM May 19, 2022Observed: 12.89 ft at 6:00PM May 19, 2022Observed: 12.93 ft at 6:15PM May 19, 2022Observed: 13.02 ft at 6:30PM May 19, 2022Observed: 13.19 ft at 6:45PM May 19, 2022Observed: 13.49 ft at 7:00PM May 19, 2022Observed: 13.88 ft at 7:15PM May 19, 2022Observed: 14.36 ft at 7:30PM May 19, 2022Observed: 14.84 ft at 7:45PM May 19, 2022Observed: 15.25 ft at 8:00PM May 19, 2022Observed: 15.61 ft at 8:15PM May 19, 2022Observed: 15.95 ft at 8:30PM May 19, 2022Observed: 16.29 ft at 8:45PM May 19, 2022Observed: 16.59 ft at 9:00PM May 19, 2022Observed: 16.87 ft at 9:15PM May 19, 2022Observed: 17.12 ft at 9:30PM May 19, 2022Observed: 17.32 ft at 9:45PM May 19, 2022Observed: 17.51 ft at 10:00PM May 19, 2022Observed: 17.64 ft at 10:15PM May 19, 2022Observed: 17.74 ft at 10:30PM May 19, 2022Observed: 17.79 ft at 10:45PM May 19, 2022Highest Observation: 17.81 ft at 11:00PM May 19, 2022Observed: 17.79 ft at 11:15PM May 19, 2022Observed: 17.7 ft at 11:30PM May 19, 2022Observed: 17.62 ft at 11:45PM May 19, 2022Observed: 17.5 ft at 12:00AM May 20, 2022Observed: 17.38 ft at 12:15AM May 20, 2022Observed: 17.24 ft at 12:30AM May 20, 2022Observed: 17.08 ft at 12:45AM May 20, 2022Observed: 16.94 ft at 1:00AM May 20, 2022Observed: 16.79 ft at 1:15AM May 20, 2022Observed: 16.63 ft at 1:30AM May 20, 2022Observed: 16.47 ft at 1:45AM May 20, 2022Observed: 16.29 ft at 2:00AM May 20, 2022Observed: 16.12 ft at 2:15AM May 20, 2022Observed: 15.97 ft at 2:30AM May 20, 2022Observed: 15.81 ft at 2:45AM May 20, 2022Observed: 15.62 ft at 3:00AM May 20, 2022Observed: 15.47 ft at 3:15AM May 20, 2022Observed: 15.31 ft at 3:30AM May 20, 2022Observed: 15.16 ft at 3:45AM May 20, 2022Observed: 15.03 ft at 4:00AM May 20, 2022Observed: 14.92 ft at 4:15AM May 20, 2022Observed: 14.84 ft at 4:30AM May 20, 2022Observed: 14.76 ft at 4:45AM May 20, 2022Observed: 14.72 ft at 5:00AM May 20, 2022Observed: 14.7 ft at 5:15AM May 20, 2022Observed: 14.72 ft at 5:30AM May 20, 2022Observed: 14.75 ft at 5:45AM May 20, 2022Observed: 14.81 ft at 6:00AM May 20, 2022Observed: 14.9 ft at 6:15AM May 20, 2022Observed: 14.98 ft at 6:30AM May 20, 2022Observed: 15.08 ft at 6:45AM May 20, 2022Observed: 15.19 ft at 7:00AM May 20, 2022Observed: 15.31 ft at 7:15AM May 20, 2022Observed: 15.42 ft at 7:30AM May 20, 2022Observed: 15.55 ft at 7:45AM May 20, 2022Observed: 15.67 ft at 8:00AM May 20, 2022Observed: 15.75 ft at 8:15AM May 20, 2022Observed: 15.83 ft at 8:30AM May 20, 2022Observed: 15.88 ft at 8:45AM May 20, 2022Observed: 15.9 ft at 9:00AM May 20, 2022Observed: 15.88 ft at 9:15AM May 20, 2022Observed: 15.82 ft at 9:30AM May 20, 2022Observed: 15.74 ft at 9:45AM May 20, 2022Observed: 15.63 ft at 10:00AM May 20, 2022Observed: 15.5 ft at 10:15AM May 20, 2022Observed: 15.33 ft at 10:30AM May 20, 2022Observed: 15.17 ft at 10:45AM May 20, 2022Observed: 14.99 ft at 11:00AM May 20, 2022Observed: 14.79 ft at 11:15AM May 20, 2022Observed: 14.62 ft at 11:30AM May 20, 2022Observed: 14.43 ft at 11:45AM May 20, 2022Observed: 14.24 ft at 12:00PM May 20, 2022Observed: 14.05 ft at 12:15PM May 20, 2022Observed: 13.88 ft at 12:30PM May 20, 2022Observed: 13.68 ft at 12:45PM May 20, 2022Observed: 13.51 ft at 1:00PM May 20, 2022Observed: 13.35 ft at 1:15PM May 20, 2022Observed: 13.19 ft at 1:30PM May 20, 2022Observed: 13.05 ft at 1:45PM May 20, 2022Observed: 12.91 ft at 2:00PM May 20, 2022Observed: 12.77 ft at 2:15PM May 20, 2022Observed: 12.65 ft at 2:30PM May 20, 2022Observed: 12.54 ft at 2:45PM May 20, 2022Observed: 12.43 ft at 3:00PM May 20, 2022Observed: 12.35 ft at 3:15PM May 20, 2022Observed: 12.28 ft at 3:30PM May 20, 2022Observed: 12.17 ft at 3:45PM May 20, 2022Observed: 12.12 ft at 4:00PM May 20, 2022Observed: 12.06 ft at 4:15PM May 20, 2022Observed: 11.98 ft at 4:30PM May 20, 2022Observed: 11.94 ft at 4:45PM May 20, 2022Observed: 11.88 ft at 5:00PM May 20, 2022Observed: 11.84 ft at 5:15PM May 20, 2022Observed: 11.79 ft at 5:30PM May 20, 2022Observed: 11.74 ft at 5:45PM May 20, 2022Observed: 11.71 ft at 6:00PM May 20, 2022Observed: 11.69 ft at 6:15PM May 20, 2022Observed: 11.66 ft at 6:30PM May 20, 2022Observed: 11.67 ft at 6:45PM May 20, 2022Observed: 11.72 ft at 7:00PM May 20, 2022Observed: 13.32 ft at 8:15PM May 20, 2022Observed: 13.89 ft at 8:30PM May 20, 2022Observed: 14.42 ft at 8:45PM May 20, 2022Observed: 14.85 ft at 9:00PM May 20, 2022Observed: 15.24 ft at 9:15PM May 20, 2022Observed: 15.58 ft at 9:30PM May 20, 2022Observed: 15.89 ft at 9:45PM May 20, 2022Observed: 16.19 ft at 10:00PM May 20, 2022Observed: 16.45 ft at 10:15PM May 20, 2022Observed: 16.69 ft at 10:30PM May 20, 2022Observed: 16.9 ft at 10:45PM May 20, 2022Observed: 17.07 ft at 11:00PM May 20, 2022Observed: 17.2 ft at 11:15PM May 20, 2022Observed: 17.26 ft at 11:30PM May 20, 2022Observed: 17.31 ft at 11:45PM May 20, 2022Observed: 17.33 ft at 12:00AM May 21, 2022Observed: 17.29 ft at 12:15AM May 21, 2022Observed: 17.23 ft at 12:30AM May 21, 2022Observed: 17.13 ft at 12:45AM May 21, 2022Observed: 16.97 ft at 1:00AM May 21, 2022Observed: 16.84 ft at 1:15AM May 21, 2022Observed: 16.69 ft at 1:30AM May 21, 2022Observed: 16.52 ft at 1:45AM May 21, 2022Observed: 16.34 ft at 2:00AM May 21, 2022Observed: 16.14 ft at 2:15AM May 21, 2022Observed: 15.95 ft at 2:30AM May 21, 2022Observed: 15.75 ft at 2:45AM May 21, 2022Observed: 15.54 ft at 3:00AM May 21, 2022Observed: 15.34 ft at 3:15AM May 21, 2022Observed: 15.14 ft at 3:30AM May 21, 2022Observed: 14.95 ft at 3:45AM May 21, 2022Observed: 14.73 ft at 4:00AM May 21, 2022Observed: 14.54 ft at 4:15AM May 21, 2022Observed: 14.37 ft at 4:30AM May 21, 2022Observed: 14.18 ft at 4:45AM May 21, 2022Observed: 14.03 ft at 5:00AM May 21, 2022Observed: 13.9 ft at 5:15AM May 21, 2022Observed: 13.76 ft at 5:30AM May 21, 2022Observed: 13.67 ft at 5:45AM May 21, 2022Observed: 13.6 ft at 6:00AM May 21, 2022Observed: 13.56 ft at 6:15AM May 21, 2022Observed: 13.55 ft at 6:30AM May 21, 2022Observed: 13.56 ft at 6:45AM May 21, 2022Observed: 13.6 ft at 7:00AM May 21, 2022Observed: 13.64 ft at 7:15AM May 21, 2022Observed: 13.71 ft at 7:30AM May 21, 2022Observed: 13.79 ft at 7:45AM May 21, 2022Observed: 13.88 ft at 8:00AM May 21, 2022Observed: 13.96 ft at 8:15AM May 21, 2022Observed: 14.06 ft at 8:30AM May 21, 2022Observed: 14.17 ft at 8:45AM May 21, 2022Observed: 14.26 ft at 9:00AM May 21, 2022Observed: 14.32 ft at 9:15AM May 21, 2022Observed: 14.39 ft at 9:30AM May 21, 2022Observed: 14.43 ft at 9:45AM May 21, 2022Observed: 14.45 ft at 10:00AM May 21, 2022Observed: 14.43 ft at 10:15AM May 21, 2022Observed: 14.4 ft at 10:30AM May 21, 2022Observed: 14.34 ft at 10:45AM May 21, 2022Observed: 14.22 ft at 11:00AM May 21, 2022Observed: 14.11 ft at 11:15AM May 21, 2022Observed: 13.97 ft at 11:30AM May 21, 2022Observed: 13.82 ft at 11:45AM May 21, 2022Observed: 13.64 ft at 12:00PM May 21, 2022Observed: 13.47 ft at 12:15PM May 21, 2022Observed: 13.28 ft at 12:30PM May 21, 2022Observed: 13.08 ft at 12:45PM May 21, 2022Observed: 12.89 ft at 1:00PM May 21, 2022Observed: 12.7 ft at 1:15PM May 21, 2022Observed: 12.51 ft at 1:30PM May 21, 2022Observed: 12.34 ft at 1:45PM May 21, 2022Observed: 12.16 ft at 2:00PM May 21, 2022Observed: 12 ft at 2:15PM May 21, 2022Observed: 11.87 ft at 2:30PM May 21, 2022Observed: 11.71 ft at 2:45PM May 21, 2022Observed: 11.59 ft at 3:00PM May 21, 2022Observed: 11.47 ft at 3:15PM May 21, 2022Observed: 11.36 ft at 3:30PM May 21, 2022Observed: 11.28 ft at 3:45PM May 21, 2022Observed: 11.18 ft at 4:00PM May 21, 2022Observed: 11.11 ft at 4:15PM May 21, 2022Observed: 11.05 ft at 4:30PM May 21, 2022Observed: 10.98 ft at 4:45PM May 21, 2022Observed: 10.95 ft at 5:00PM May 21, 2022Observed: 10.92 ft at 5:15PM May 21, 2022Observed: 10.88 ft at 5:30PM May 21, 2022Observed: 10.85 ft at 5:45PM May 21, 2022Observed: 10.81 ft at 6:00PM May 21, 2022Observed: 10.79 ft at 6:15PM May 21, 2022Observed: 10.79 ft at 6:30PM May 21, 2022Observed: 10.76 ft at 6:45PM May 21, 2022Observed: 10.78 ft at 7:00PM May 21, 2022Observed: 10.81 ft at 7:15PM May 21, 2022Observed: 10.84 ft at 7:30PM May 21, 2022Observed: 10.93 ft at 7:45PM May 21, 2022Observed: 11.1 ft at 8:00PM May 21, 2022Observed: 11.36 ft at 8:15PM May 21, 2022Observed: 11.74 ft at 8:30PM May 21, 2022Observed: 12.24 ft at 8:45PM May 21, 2022Observed: 12.82 ft at 9:00PM May 21, 2022Observed: 13.4 ft at 9:15PM May 21, 2022Observed: 13.92 ft at 9:30PM May 21, 2022Observed: 14.4 ft at 9:45PM May 21, 2022Observed: 14.83 ft at 10:00PM May 21, 2022Observed: 15.22 ft at 10:15PM May 21, 2022Observed: 15.55 ft at 10:30PM May 21, 2022Observed: 15.82 ft at 10:45PM May 21, 2022Observed: 16.07 ft at 11:00PM May 21, 2022Observed: 16.31 ft at 11:15PM May 21, 2022Observed: 16.52 ft at 11:30PM May 21, 2022Observed: 16.69 ft at 11:45PM May 21, 2022Observed: 16.83 ft at 12:00AM May 22, 2022Observed: 16.91 ft at 12:15AM May 22, 2022Observed: 16.93 ft at 12:30AM May 22, 2022Observed: 16.93 ft at 12:45AM May 22, 2022Observed: 16.88 ft at 1:00AM May 22, 2022Observed: 16.8 ft at 1:15AM May 22, 2022Observed: 16.7 ft at 1:30AM May 22, 2022Observed: 16.56 ft at 1:45AM May 22, 2022Observed: 16.41 ft at 2:00AM May 22, 2022Observed: 16.23 ft at 2:15AM May 22, 2022Observed: 16.05 ft at 2:30AM May 22, 2022Observed: 15.86 ft at 2:45AM May 22, 2022Observed: 15.66 ft at 3:00AM May 22, 2022Observed: 15.44 ft at 3:15AM May 22, 2022Observed: 15.23 ft at 3:30AM May 22, 2022Observed: 15.02 ft at 3:45AM May 22, 2022Observed: 14.78 ft at 4:00AM May 22, 2022Observed: 14.57 ft at 4:15AM May 22, 2022Observed: 14.34 ft at 4:30AM May 22, 2022Observed: 14.1 ft at 4:45AM May 22, 2022Observed: 13.89 ft at 5:00AM May 22, 2022Observed: 13.69 ft at 5:15AM May 22, 2022Observed: 13.46 ft at 5:30AM May 22, 2022Observed: 13.27 ft at 5:45AM May 22, 2022Observed: 13.1 ft at 6:00AM May 22, 2022Observed: 12.93 ft at 6:15AM May 22, 2022Observed: 12.79 ft at 6:30AM May 22, 2022Observed: 12.66 ft at 6:45AM May 22, 2022Observed: 12.55 ft at 7:00AM May 22, 2022Observed: 12.5 ft at 7:15AM May 22, 2022Observed: 12.46 ft at 7:30AM May 22, 2022Observed: 12.43 ft at 7:45AM May 22, 2022Observed: 12.45 ft at 8:00AM May 22, 2022Observed: 12.5 ft at 8:15AM May 22, 2022Observed: 12.55 ft at 8:30AM May 22, 2022Observed: 12.62 ft at 8:45AM May 22, 2022Observed: 12.7 ft at 9:00AM May 22, 2022Observed: 12.79 ft at 9:15AM May 22, 2022Observed: 12.87 ft at 9:30AM May 22, 2022Observed: 12.99 ft at 9:45AM May 22, 2022Observed: 13.08 ft at 10:00AM May 22, 2022Forecast: 13.55 ft 12:00PM May 22, 2022Forecast: 13.07 ft 1:00PM May 22, 2022Forecast: 12.46 ft 2:00PM May 22, 2022Forecast: 12.09 ft 3:00PM May 22, 2022Forecast: 11.85 ft 4:00PM May 22, 2022Forecast: 11.35 ft 5:00PM May 22, 2022Forecast: 10.86 ft 6:00PM May 22, 2022Forecast: 10.57 ft 7:00PM May 22, 2022Forecast: 10.66 ft 8:00PM May 22, 2022Forecast: 11.38 ft 9:00PM May 22, 2022Forecast: 12.1 ft 10:00PM May 22, 2022Forecast: 13.7 ft 11:00PM May 22, 2022Forecast: 15.47 ft 12:00AM May 23, 2022Forecast: 16.68 ft 1:00AM May 23, 2022Highest Forecast: 16.82 ft 2:00AM May 23, 2022Forecast: 16.14 ft 3:00AM May 23, 2022Forecast: 14.92 ft 4:00AM May 23, 2022Forecast: 13.9 ft 5:00AM May 23, 2022Forecast: 13.12 ft 6:00AM May 23, 2022Forecast: 12.58 ft 7:00AM May 23, 2022Forecast: 12.28 ft 8:00AM May 23, 2022Forecast: 12.26 ft 9:00AM May 23, 2022Forecast: 12.47 ft 10:00AM May 23, 2022Forecast: 12.85 ft 11:00AM May 23, 2022Forecast: 13.19 ft 12:00PM May 23, 2022Forecast: 13.35 ft 1:00PM May 23, 2022Forecast: 13.16 ft 2:00PM May 23, 2022Forecast: 12.72 ft 3:00PM May 23, 2022Forecast: 12.17 ft 4:00PM May 23, 2022Forecast: 11.95 ft 5:00PM May 23, 2022Forecast: 11.73 ft 6:00PM May 23, 2022Forecast: 11.36 ft 7:00PM May 23, 2022Forecast: 11.16 ft 8:00PM May 23, 2022Forecast: 11.44 ft 9:00PM May 23, 2022Forecast: 12 ft 10:00PM May 23, 2022Forecast: 13.33 ft 11:00PM May 23, 2022Forecast: 15.16 ft 12:00AM May 24, 2022Forecast: 16.56 ft 1:00AM May 24, 2022Forecast: 16.77 ft 2:00AM May 24, 2022Forecast: 16.16 ft 3:00AM May 24, 2022Forecast: 15.05 ft 4:00AM May 24, 2022Forecast: 14.03 ft 5:00AM May 24, 2022Forecast: 13.23 ft 6:00AM May 24, 2022Forecast: 12.58 ft 7:00AM May 24, 2022Forecast: 12.18 ft 8:00AM May 24, 2022Forecast: 12.06 ft 9:00AM May 24, 2022Forecast: 12.04 ft 10:00AM May 24, 2022Forecast: 12.15 ft 11:00AM May 24, 2022Forecast: 12.57 ft 12:00PM May 24, 2022Forecast: 13.16 ft 1:00PM May 24, 2022Forecast: 13.41 ft 2:00PM May 24, 2022Forecast: 13.26 ft 3:00PM May 24, 2022Forecast: 12.9 ft 4:00PM May 24, 2022Forecast: 12.41 ft 5:00PM May 24, 2022Forecast: 12.09 ft 6:00PM May 24, 2022Forecast: 11.93 ft 7:00PM May 24, 2022Forecast: 11.79 ft 8:00PM May 24, 2022Forecast: 11.72 ft 9:00PM May 24, 2022Forecast: 11.88 ft 10:00PM May 24, 2022Forecast: 12.25 ft 11:00PM May 24, 2022Forecast: 13.72 ft 12:00AM May 25, 2022Forecast: 15.4 ft 1:00AM May 25, 2022Forecast: 16.64 ft 2:00AM May 25, 2022Forecast: 16.77 ft 3:00AM May 25, 2022Forecast: 16.03 ft 4:00AM May 25, 2022Forecast: 14.71 ft 5:00AM May 25, 2022Forecast: 13.62 ft 6:00AM May 25, 2022Forecast: 12.76 ft 7:00AM May 25, 2022Forecast: 12.04 ft 8:00AM May 25, 2022Forecast: 11.82 ft 9:00AM May 25, 2022Forecast: 11.62 ft 10:00AM May 25, 2022Forecast: 11.51 ft 11:00AM May 25, 2022Forecast: 11.67 ft 12:00PM May 25, 2022Forecast: 11.9 ft 1:00PM May 25, 2022Forecast: 12.6 ft 2:00PM May 25, 2022Forecast: 13.35 ft 3:00PM May 25, 2022Forecast: 13.62 ft 4:00PM May 25, 2022Forecast: 13.38 ft 5:00PM May 25, 2022Forecast: 12.88 ft 6:00PM May 25, 2022Forecast: 12.34 ft 7:00PM May 25, 2022Forecast: 11.95 ft 8:00PM May 25, 2022Forecast: 11.83 ft 9:00PM May 25, 2022Forecast: 11.81 ft 10:00PM May 25, 2022Forecast: 11.94 ft 11:00PM May 25, 2022Forecast: 12.64 ft 12:00AM May 26, 2022Forecast: 13.95 ft 1:00AM May 26, 2022Forecast: 15.45 ft 2:00AM May 26, 2022Forecast: 16.51 ft 3:00AM May 26, 2022Forecast: 16.6 ft 4:00AM May 26, 2022Forecast: 15.79 ft 5:00AM May 26, 2022Forecast: 14.48 ft 6:00AM May 26, 2022Forecast: 13.38 ft 7:00AM May 26, 2022Forecast: 12.49 ft 8:00AM May 26, 2022Forecast: 11.95 ft 9:00AM May 26, 2022Forecast: 11.72 ft 10:00AM May 26, 2022Forecast: 11.27 ft 11:00AM May 26, 2022Forecast: 11.03 ft 12:00PM May 26, 2022Forecast: 11.3 ft 1:00PM May 26, 2022Forecast: 11.92 ft 2:00PM May 26, 2022Forecast: 12.86 ft 3:00PM May 26, 2022Forecast: 13.94 ft 4:00PM May 26, 2022Forecast: 14.26 ft 5:00PM May 26, 2022Forecast: 14.01 ft 6:00PM May 26, 2022Forecast: 13.47 ft 7:00PM May 26, 2022Forecast: 12.95 ft 8:00PM May 26, 2022Forecast: 12.49 ft 9:00PM May 26, 2022Forecast: 12.25 ft 10:00PM May 26, 2022Forecast: 12.27 ft 11:00PM May 26, 2022Forecast: 12.81 ft 12:00AM May 27, 2022Forecast: 13.87 ft 1:00AM May 27, 2022Forecast: 15.28 ft 2:00AM May 27, 2022Forecast: 16.39 ft 3:00AM May 27, 2022Forecast: 16.5 ft 4:00AM May 27, 2022Forecast: 15.77 ft 5:00AM May 27, 2022Forecast: 14.59 ft 6:00AM May 27, 2022Forecast: 13.75 ft 7:00AM May 27, 2022Forecast: 13.07 ft 8:00AM May 27, 2022Forecast: 12.74 ft 9:00AM May 27, 2022Forecast: 12.49 ft 10:00AM May 27, 2022Forecast: 12.12 ft 11:00AM May 27, 2022USGS--Water Resources of the United StatesSNAW1(plotting HGIRG) Graph Created (11:05AM May 22, 2022)ObservedForecast (issued 10:17AM May 22)Latest observed value: 13.08 ft at 10:00 AM PDT 22-May-2022. Flood Stage is 25 ft
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Tabular Data (PDT)
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Datum: NGVD29
Metadata
NOTE: River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Snohomish River at Snohomish are issued routinely year-round.

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Upstream Locations Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 29
Moderate Flood Stage: 27
Flood Stage: 25
Action Stage: 20
Low Stage (in feet): -9999

Historic Crests
(1) 33.50 ft on 11/25/1990
(2) 33.49 ft on 11/08/2006 (P)
(3) 33.47 ft on 01/08/2009 (P)
(4) 33.16 ft on 12/04/1975
(5) 33.11 ft on 11/29/1995
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 26.45 ft on 03/02/2022 (P)
(2) 26.08 ft on 01/13/2022 (P)
(3) 27.83 ft on 11/15/2021 (P)
(4) 26.54 ft on 11/13/2021 (P)
(5) 25.58 ft on 10/29/2021 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:15
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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
33 the Snohomish River will cause severe near record flooding. Flood waters will likely overtop levees...with major levee damage possible. Flood waters will inundate much of the river valley...including SR2 west of Monroe...SR9 and the Lowell-Snohomish River Rd. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 33 feet on the Snohomish River corresponds to a Phase 4 in the Snohomish County flood program.
32 the Snohomish River will cause major flooding. Overtopping begins at French Slough area. Flood waters will likely overtop other levees...with major levee damage possible. Flood waters will inundate much of the lowlands and many roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 32 feet on the Snohomish River corresponds to a Phase 4 in the Snohomish County flood program.
31 the Snohomish River will cause major flooding. Flood waters will likely overtop levees...with major levee damage possible. Flood waters will inundate much of the valley and many roads. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 31 feet on the Snohomish River corresponds to a Phase 4 in the Snohomish County flood program.
30 the Snohomish River will flood low farm lands and several roads...including Riverview Rd and the Snohomish-Monroe highway. Hide tidal levels could worsen flooding on the lower delta and Ebey Island. Levees may be damaged. Berms start overtopping at this level. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. This stage on the Snohomish River corresponds to a Phase 4 in the Snohomish County flood program.
29 the Snohomish River will flood low farm lands and several roads...including Riverview Rd and the Snohomish-Monroe highway. Hide tidal levels could worsen flooding on the lower delta and Ebey Island. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snohomish River Basin. A stage of 29 feet on the Snohomish River corresponds to a Phase 3 in the Snohomish County flood program.
28 the Snohomish River will flood several roads...including the Snohomish-Monroe highway and Riverview Road...and low areas of the lower Snohomish valley that are not protected by levees. A stage of 28 feet on the Snohomish River corresponds to a Phase 3 in the Snohomish County flood program.
27 the Snohomish River will flood several roads...including the Snohomish-Monroe highway...and low areas of the lower Snohomish valley that are not protected by levees. A stage of 27 feet on the Snohomish River corresponds roughly to a Phase 2 in the Snohomish County flood program.
25 the Snohomish River will cause minor flooding of lowlands not protected by levees and on the Old Snohomish-Monroe highway. A stage of 25 feet on the Snohomish River corresponds to a Phase 2 in the Snohomish County flood program.
About This Location Collapse

Latitude: 47.912733° N, Longitude: 122.106458° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 25 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 -9.86 ft 15.14 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
Due to tidal effects at this gage, the river forecasts are not representative at river levels below 18 feet. As a consequence, the forecast has been discontinued during the summer period.
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Seattle Weather Forecast Office
7600 Sandpoint Way NE
Seattle, WA 98115-6349
(206) 526-6087
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