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Hydrograph River at a Glance Download
Snohomish River at Snohomish Stage (ft)Flow (kcfs)Observed: 13.22 ft at 1:30AM Oct 28, 2014Observed: 13.07 ft at 1:45AM Oct 28, 2014Observed: 12.91 ft at 2:00AM Oct 28, 2014Observed: 12.78 ft at 2:15AM Oct 28, 2014Observed: 12.65 ft at 2:30AM Oct 28, 2014Observed: 12.54 ft at 2:45AM Oct 28, 2014Observed: 12.42 ft at 3:00AM Oct 28, 2014Observed: 12.32 ft at 3:15AM Oct 28, 2014Observed: 12.23 ft at 3:30AM Oct 28, 2014Observed: 12.14 ft at 3:45AM Oct 28, 2014Observed: 12.07 ft at 4:00AM Oct 28, 2014Observed: 12 ft at 4:15AM Oct 28, 2014Observed: 11.93 ft at 4:30AM Oct 28, 2014Observed: 11.89 ft at 4:45AM Oct 28, 2014Observed: 11.88 ft at 5:00AM Oct 28, 2014Observed: 11.88 ft at 5:15AM Oct 28, 2014Observed: 11.93 ft at 5:30AM Oct 28, 2014Observed: 12.04 ft at 5:45AM Oct 28, 2014Observed: 12.21 ft at 6:00AM Oct 28, 2014Observed: 12.5 ft at 6:15AM Oct 28, 2014Observed: 12.89 ft at 6:30AM Oct 28, 2014Observed: 13.4 ft at 6:45AM Oct 28, 2014Observed: 13.96 ft at 7:00AM Oct 28, 2014Observed: 14.5 ft at 7:15AM Oct 28, 2014Observed: 15 ft at 7:30AM Oct 28, 2014Observed: 15.46 ft at 7:45AM Oct 28, 2014Observed: 15.87 ft at 8:00AM Oct 28, 2014Observed: 16.22 ft at 8:15AM Oct 28, 2014Observed: 16.52 ft at 8:30AM Oct 28, 2014Observed: 16.82 ft at 8:45AM Oct 28, 2014Observed: 17.09 ft at 9:00AM Oct 28, 2014Observed: 17.3 ft at 9:15AM Oct 28, 2014Observed: 17.47 ft at 9:30AM Oct 28, 2014Observed: 17.6 ft at 9:45AM Oct 28, 2014Observed: 17.67 ft at 10:00AM Oct 28, 2014Observed: 17.7 ft at 10:15AM Oct 28, 2014Observed: 17.66 ft at 10:30AM Oct 28, 2014Observed: 17.58 ft at 10:45AM Oct 28, 2014Observed: 17.49 ft at 11:00AM Oct 28, 2014Observed: 17.38 ft at 11:15AM Oct 28, 2014Observed: 17.25 ft at 11:30AM Oct 28, 2014Observed: 17.11 ft at 11:45AM Oct 28, 2014Observed: 16.96 ft at 12:00PM Oct 28, 2014Observed: 16.8 ft at 12:15PM Oct 28, 2014Observed: 16.63 ft at 12:30PM Oct 28, 2014Observed: 16.44 ft at 12:45PM Oct 28, 2014Observed: 16.24 ft at 1:00PM Oct 28, 2014Observed: 16.03 ft at 1:15PM Oct 28, 2014Observed: 15.82 ft at 1:30PM Oct 28, 2014Observed: 15.6 ft at 1:45PM Oct 28, 2014Observed: 15.37 ft at 2:00PM Oct 28, 2014Observed: 15.15 ft at 2:15PM Oct 28, 2014Observed: 14.92 ft at 2:30PM Oct 28, 2014Observed: 14.72 ft at 2:45PM Oct 28, 2014Observed: 14.54 ft at 3:00PM Oct 28, 2014Observed: 14.35 ft at 3:15PM Oct 28, 2014Observed: 14.19 ft at 3:30PM Oct 28, 2014Observed: 14.05 ft at 3:45PM Oct 28, 2014Observed: 13.94 ft at 4:00PM Oct 28, 2014Observed: 13.87 ft at 4:15PM Oct 28, 2014Observed: 13.84 ft at 4:30PM Oct 28, 2014Observed: 13.84 ft at 4:45PM Oct 28, 2014Observed: 13.88 ft at 5:00PM Oct 28, 2014Observed: 13.96 ft at 5:15PM Oct 28, 2014Observed: 14.07 ft at 5:30PM Oct 28, 2014Observed: 14.2 ft at 5:45PM Oct 28, 2014Observed: 14.36 ft at 6:00PM Oct 28, 2014Observed: 14.51 ft at 6:15PM Oct 28, 2014Observed: 14.67 ft at 6:30PM Oct 28, 2014Observed: 14.87 ft at 6:45PM Oct 28, 2014Observed: 15.08 ft at 7:00PM Oct 28, 2014Observed: 15.28 ft at 7:15PM Oct 28, 2014Observed: 15.47 ft at 7:30PM Oct 28, 2014Observed: 15.66 ft at 7:45PM Oct 28, 2014Observed: 15.84 ft at 8:00PM Oct 28, 2014Observed: 15.98 ft at 8:15PM Oct 28, 2014Observed: 16.11 ft at 8:30PM Oct 28, 2014Observed: 16.2 ft at 8:45PM Oct 28, 2014Observed: 16.25 ft at 9:00PM Oct 28, 2014Observed: 16.26 ft at 9:15PM Oct 28, 2014Observed: 16.21 ft at 9:30PM Oct 28, 2014Observed: 16.14 ft at 9:45PM Oct 28, 2014Observed: 16.02 ft at 10:00PM Oct 28, 2014Observed: 15.88 ft at 10:15PM Oct 28, 2014Observed: 15.72 ft at 10:30PM Oct 28, 2014Observed: 15.57 ft at 10:45PM Oct 28, 2014Observed: 15.37 ft at 11:00PM Oct 28, 2014Observed: 15.19 ft at 11:15PM Oct 28, 2014Observed: 14.98 ft at 11:30PM Oct 28, 2014Observed: 14.79 ft at 11:45PM Oct 28, 2014Observed: 14.58 ft at 12:00AM Oct 29, 2014Observed: 14.38 ft at 12:15AM Oct 29, 2014Observed: 14.19 ft at 12:30AM Oct 29, 2014Observed: 13.99 ft at 12:45AM Oct 29, 2014Observed: 13.82 ft at 1:00AM Oct 29, 2014Observed: 13.66 ft at 1:15AM Oct 29, 2014Observed: 13.5 ft at 1:30AM Oct 29, 2014Observed: 13.36 ft at 1:45AM Oct 29, 2014Observed: 13.22 ft at 2:00AM Oct 29, 2014Observed: 13.11 ft at 2:15AM Oct 29, 2014Observed: 13 ft at 2:30AM Oct 29, 2014Observed: 12.9 ft at 2:45AM Oct 29, 2014Observed: 12.82 ft at 3:00AM Oct 29, 2014Observed: 12.76 ft at 3:15AM Oct 29, 2014Observed: 12.69 ft at 3:30AM Oct 29, 2014Observed: 12.64 ft at 3:45AM Oct 29, 2014Observed: 12.59 ft at 4:00AM Oct 29, 2014Observed: 12.55 ft at 4:15AM Oct 29, 2014Observed: 12.53 ft at 4:30AM Oct 29, 2014Observed: 12.53 ft at 4:45AM Oct 29, 2014Observed: 12.5 ft at 5:00AM Oct 29, 2014Observed: 12.5 ft at 5:15AM Oct 29, 2014Observed: 12.52 ft at 5:30AM Oct 29, 2014Observed: 12.56 ft at 5:45AM Oct 29, 2014Observed: 12.61 ft at 6:00AM Oct 29, 2014Observed: 12.68 ft at 6:15AM Oct 29, 2014Observed: 12.8 ft at 6:30AM Oct 29, 2014Observed: 12.95 ft at 6:45AM Oct 29, 2014Observed: 13.15 ft at 7:00AM Oct 29, 2014Observed: 13.44 ft at 7:15AM Oct 29, 2014Observed: 13.81 ft at 7:30AM Oct 29, 2014Observed: 14.26 ft at 7:45AM Oct 29, 2014Observed: 14.73 ft at 8:00AM Oct 29, 2014Observed: 15.15 ft at 8:15AM Oct 29, 2014Observed: 15.56 ft at 8:30AM Oct 29, 2014Observed: 15.93 ft at 8:45AM Oct 29, 2014Observed: 16.28 ft at 9:00AM Oct 29, 2014Observed: 16.58 ft at 9:15AM Oct 29, 2014Observed: 16.86 ft at 9:30AM Oct 29, 2014Observed: 17.15 ft at 9:45AM Oct 29, 2014Observed: 17.38 ft at 10:00AM Oct 29, 2014Observed: 17.58 ft at 10:15AM Oct 29, 2014Observed: 17.74 ft at 10:30AM Oct 29, 2014Observed: 17.86 ft at 10:45AM Oct 29, 2014Observed: 17.93 ft at 11:00AM Oct 29, 2014Observed: 17.96 ft at 11:15AM Oct 29, 2014Observed: 17.95 ft at 11:30AM Oct 29, 2014Observed: 17.92 ft at 11:45AM Oct 29, 2014Observed: 17.87 ft at 12:00PM Oct 29, 2014Observed: 17.81 ft at 12:15PM Oct 29, 2014Observed: 17.73 ft at 12:30PM Oct 29, 2014Observed: 17.66 ft at 12:45PM Oct 29, 2014Observed: 17.57 ft at 1:00PM Oct 29, 2014Observed: 17.45 ft at 1:15PM Oct 29, 2014Observed: 17.33 ft at 1:30PM Oct 29, 2014Observed: 17.18 ft at 1:45PM Oct 29, 2014Observed: 17.05 ft at 2:00PM Oct 29, 2014Observed: 16.89 ft at 2:15PM Oct 29, 2014Observed: 16.75 ft at 2:30PM Oct 29, 2014Observed: 16.61 ft at 2:45PM Oct 29, 2014Observed: 16.46 ft at 3:00PM Oct 29, 2014Observed: 16.3 ft at 3:15PM Oct 29, 2014Observed: 16.17 ft at 3:30PM Oct 29, 2014Observed: 16.04 ft at 3:45PM Oct 29, 2014Observed: 15.91 ft at 4:00PM Oct 29, 2014Observed: 15.8 ft at 4:15PM Oct 29, 2014Observed: 15.7 ft at 4:30PM Oct 29, 2014Observed: 15.6 ft at 4:45PM Oct 29, 2014Observed: 15.54 ft at 5:00PM Oct 29, 2014Observed: 15.47 ft at 5:15PM Oct 29, 2014Observed: 15.43 ft at 5:30PM Oct 29, 2014Observed: 15.41 ft at 5:45PM Oct 29, 2014Observed: 15.41 ft at 6:00PM Oct 29, 2014Observed: 15.42 ft at 6:15PM Oct 29, 2014Observed: 15.45 ft at 6:30PM Oct 29, 2014Observed: 15.49 ft at 6:45PM Oct 29, 2014Observed: 15.53 ft at 7:00PM Oct 29, 2014Observed: 15.6 ft at 7:15PM Oct 29, 2014Observed: 15.66 ft at 7:30PM Oct 29, 2014Observed: 15.75 ft at 7:45PM Oct 29, 2014Observed: 15.83 ft at 8:00PM Oct 29, 2014Observed: 15.94 ft at 8:15PM Oct 29, 2014Observed: 16.03 ft at 8:30PM Oct 29, 2014Observed: 16.14 ft at 8:45PM Oct 29, 2014Observed: 16.24 ft at 9:00PM Oct 29, 2014Observed: 16.33 ft at 9:15PM Oct 29, 2014Observed: 16.41 ft at 9:30PM Oct 29, 2014Observed: 16.48 ft at 9:45PM Oct 29, 2014Observed: 16.51 ft at 10:00PM Oct 29, 2014Observed: 16.53 ft at 10:15PM Oct 29, 2014Observed: 16.53 ft at 10:30PM Oct 29, 2014Observed: 16.5 ft at 10:45PM Oct 29, 2014Observed: 16.44 ft at 11:00PM Oct 29, 2014Observed: 16.38 ft at 11:15PM Oct 29, 2014Observed: 16.28 ft at 11:30PM Oct 29, 2014Observed: 16.17 ft at 11:45PM Oct 29, 2014Observed: 16.05 ft at 12:00AM Oct 30, 2014Observed: 15.94 ft at 12:15AM Oct 30, 2014Observed: 15.83 ft at 12:30AM Oct 30, 2014Observed: 15.7 ft at 12:45AM Oct 30, 2014Observed: 15.57 ft at 1:00AM Oct 30, 2014Observed: 15.44 ft at 1:15AM Oct 30, 2014Observed: 15.32 ft at 1:30AM Oct 30, 2014Observed: 15.19 ft at 1:45AM Oct 30, 2014Observed: 15.08 ft at 2:00AM Oct 30, 2014Observed: 14.96 ft at 2:15AM Oct 30, 2014Observed: 14.84 ft at 2:30AM Oct 30, 2014Observed: 14.73 ft at 2:45AM Oct 30, 2014Observed: 14.64 ft at 3:00AM Oct 30, 2014Observed: 14.53 ft at 3:15AM Oct 30, 2014Observed: 14.44 ft at 3:30AM Oct 30, 2014Observed: 14.36 ft at 3:45AM Oct 30, 2014Observed: 14.28 ft at 4:00AM Oct 30, 2014Observed: 14.2 ft at 4:15AM Oct 30, 2014Observed: 14.12 ft at 4:30AM Oct 30, 2014Observed: 14.06 ft at 4:45AM Oct 30, 2014Observed: 14 ft at 5:00AM Oct 30, 2014Observed: 13.94 ft at 5:15AM Oct 30, 2014Observed: 13.88 ft at 5:30AM Oct 30, 2014Observed: 13.83 ft at 5:45AM Oct 30, 2014Observed: 13.8 ft at 6:00AM Oct 30, 2014Observed: 13.75 ft at 6:15AM Oct 30, 2014Observed: 13.73 ft at 6:30AM Oct 30, 2014Observed: 13.71 ft at 6:45AM Oct 30, 2014Observed: 13.72 ft at 7:00AM Oct 30, 2014Observed: 13.73 ft at 7:15AM Oct 30, 2014Observed: 13.79 ft at 7:30AM Oct 30, 2014Observed: 13.88 ft at 7:45AM Oct 30, 2014Observed: 14 ft at 8:00AM Oct 30, 2014Observed: 14.21 ft at 8:15AM Oct 30, 2014Observed: 14.49 ft at 8:30AM Oct 30, 2014Observed: 14.84 ft at 8:45AM Oct 30, 2014Observed: 15.21 ft at 9:00AM Oct 30, 2014Observed: 15.57 ft at 9:15AM Oct 30, 2014Observed: 15.91 ft at 9:30AM Oct 30, 2014Observed: 16.25 ft at 9:45AM Oct 30, 2014Observed: 16.57 ft at 10:00AM Oct 30, 2014Observed: 16.87 ft at 10:15AM Oct 30, 2014Observed: 17.13 ft at 10:30AM Oct 30, 2014Observed: 17.36 ft at 10:45AM Oct 30, 2014Observed: 17.57 ft at 11:00AM Oct 30, 2014Observed: 17.73 ft at 11:15AM Oct 30, 2014Observed: 17.84 ft at 11:30AM Oct 30, 2014Observed: 17.92 ft at 11:45AM Oct 30, 2014Observed: 17.96 ft at 12:00PM Oct 30, 2014Highest Observation: 17.99 ft at 12:15PM Oct 30, 2014Observed: 17.95 ft at 12:30PM Oct 30, 2014Observed: 17.95 ft at 12:45PM Oct 30, 2014Observed: 17.87 ft at 1:00PM Oct 30, 2014Observed: 17.78 ft at 1:15PM Oct 30, 2014Observed: 17.68 ft at 1:30PM Oct 30, 2014Observed: 17.6 ft at 1:45PM Oct 30, 2014Observed: 17.45 ft at 2:00PM Oct 30, 2014Observed: 17.31 ft at 2:15PM Oct 30, 2014Observed: 17.13 ft at 2:30PM Oct 30, 2014Observed: 16.99 ft at 2:45PM Oct 30, 2014Observed: 16.8 ft at 3:00PM Oct 30, 2014Observed: 16.61 ft at 3:15PM Oct 30, 2014Observed: 16.42 ft at 3:30PM Oct 30, 2014Observed: 16.25 ft at 3:45PM Oct 30, 2014Observed: 16.04 ft at 4:00PM Oct 30, 2014Observed: 15.86 ft at 4:15PM Oct 30, 2014Observed: 15.65 ft at 4:30PM Oct 30, 2014Observed: 15.47 ft at 4:45PM Oct 30, 2014Observed: 15.3 ft at 5:00PM Oct 30, 2014Observed: 15.14 ft at 5:15PM Oct 30, 2014Observed: 14.98 ft at 5:30PM Oct 30, 2014Observed: 14.85 ft at 5:45PM Oct 30, 2014Observed: 14.71 ft at 6:00PM Oct 30, 2014Observed: 14.64 ft at 6:15PM Oct 30, 2014Observed: 14.54 ft at 6:30PM Oct 30, 2014Observed: 14.48 ft at 6:45PM Oct 30, 2014Observed: 14.44 ft at 7:00PM Oct 30, 2014Observed: 14.43 ft at 7:15PM Oct 30, 2014Observed: 14.43 ft at 7:30PM Oct 30, 2014Observed: 14.43 ft at 7:45PM Oct 30, 2014Observed: 14.47 ft at 8:00PM Oct 30, 2014Observed: 14.54 ft at 8:15PM Oct 30, 2014Observed: 14.59 ft at 8:30PM Oct 30, 2014Observed: 14.66 ft at 8:45PM Oct 30, 2014Observed: 14.76 ft at 9:00PM Oct 30, 2014Observed: 14.88 ft at 9:15PM Oct 30, 2014Observed: 14.98 ft at 9:30PM Oct 30, 2014Observed: 15.08 ft at 9:45PM Oct 30, 2014Observed: 15.19 ft at 10:00PM Oct 30, 2014Observed: 15.3 ft at 10:15PM Oct 30, 2014Observed: 15.36 ft at 10:30PM Oct 30, 2014Observed: 15.43 ft at 10:45PM Oct 30, 2014Observed: 15.45 ft at 11:00PM Oct 30, 2014Observed: 15.48 ft at 11:15PM Oct 30, 2014Observed: 15.45 ft at 11:30PM Oct 30, 2014Observed: 15.42 ft at 11:45PM Oct 30, 2014Observed: 15.35 ft at 12:00AM Oct 31, 2014Forecast: 14.13 ft 2:00AM Oct 31, 2014Forecast: 13.84 ft 3:00AM Oct 31, 2014Forecast: 13.6 ft 4:00AM Oct 31, 2014Forecast: 13.38 ft 5:00AM Oct 31, 2014Forecast: 13.46 ft 6:00AM Oct 31, 2014Forecast: 13.67 ft 7:00AM Oct 31, 2014Forecast: 14.02 ft 8:00AM Oct 31, 2014Forecast: 14.62 ft 9:00AM Oct 31, 2014Forecast: 16.03 ft 10:00AM Oct 31, 2014Forecast: 17.23 ft 11:00AM Oct 31, 2014Forecast: 18.05 ft 12:00PM Oct 31, 2014Forecast: 18.4 ft 1:00PM Oct 31, 2014Forecast: 18.5 ft 2:00PM Oct 31, 2014Forecast: 18.44 ft 3:00PM Oct 31, 2014Forecast: 18.36 ft 4:00PM Oct 31, 2014Forecast: 18.19 ft 5:00PM Oct 31, 2014Forecast: 17.94 ft 6:00PM Oct 31, 2014Forecast: 17.84 ft 7:00PM Oct 31, 2014Forecast: 17.84 ft 8:00PM Oct 31, 2014Forecast: 18.01 ft 9:00PM Oct 31, 2014Forecast: 18.36 ft 10:00PM Oct 31, 2014Forecast: 18.82 ft 11:00PM Oct 31, 2014Highest Forecast: 19.04 ft 12:00AM Nov 01, 2014Highest Forecast: 19.04 ft 1:00AM Nov 01, 2014Forecast: 18.68 ft 2:00AM Nov 01, 2014Forecast: 18.19 ft 3:00AM Nov 01, 2014Forecast: 17.66 ft 4:00AM Nov 01, 2014Forecast: 17.02 ft 5:00AM Nov 01, 2014Forecast: 16.39 ft 6:00AM Nov 01, 2014Forecast: 16 ft 7:00AM Nov 01, 2014Forecast: 15.75 ft 8:00AM Nov 01, 2014Forecast: 15.72 ft 9:00AM Nov 01, 2014Forecast: 16.35 ft 10:00AM Nov 01, 2014Forecast: 17.27 ft 11:00AM Nov 01, 2014Forecast: 18.05 ft 12:00PM Nov 01, 2014Forecast: 18.58 ft 1:00PM Nov 01, 2014Forecast: 18.33 ft 2:00PM Nov 01, 2014Forecast: 17.98 ft 3:00PM Nov 01, 2014Forecast: 17.48 ft 4:00PM Nov 01, 2014Forecast: 16.78 ft 5:00PM Nov 01, 2014Forecast: 16.18 ft 6:00PM Nov 01, 2014Forecast: 15.61 ft 7:00PM Nov 01, 2014Forecast: 15.22 ft 8:00PM Nov 01, 2014Forecast: 14.87 ft 9:00PM Nov 01, 2014Forecast: 14.76 ft 10:00PM Nov 01, 2014Forecast: 14.8 ft 11:00PM Nov 01, 2014Forecast: 15.22 ft 12:00AM Nov 02, 2014Forecast: 15.54 ft 1:00AM Nov 02, 2014Forecast: 15.61 ft 1:00AM Nov 02, 2014Forecast: 15.22 ft 2:00AM Nov 02, 2014Forecast: 14.55 ft 3:00AM Nov 02, 2014Forecast: 14.02 ft 4:00AM Nov 02, 2014Forecast: 13.63 ft 5:00AM Nov 02, 2014Forecast: 13.28 ft 6:00AM Nov 02, 2014Forecast: 13 ft 7:00AM Nov 02, 2014Forecast: 12.85 ft 8:00AM Nov 02, 2014Forecast: 12.89 ft 9:00AM Nov 02, 2014Forecast: 13.31 ft 10:00AM Nov 02, 2014Forecast: 14.3 ft 11:00AM Nov 02, 2014Forecast: 16.32 ft 12:00PM Nov 02, 2014Forecast: 17.48 ft 1:00PM Nov 02, 2014Forecast: 17.62 ft 2:00PM Nov 02, 2014Forecast: 16.88 ft 3:00PM Nov 02, 2014Forecast: 15.43 ft 4:00PM Nov 02, 2014Forecast: 14.02 ft 5:00PM Nov 02, 2014Forecast: 13.28 ft 6:00PM Nov 02, 2014Forecast: 12.61 ft 7:00PM Nov 02, 2014Forecast: 12.19 ft 8:00PM Nov 02, 2014Forecast: 11.97 ft 9:00PM Nov 02, 2014Forecast: 11.9 ft 10:00PM Nov 02, 2014Forecast: 12.01 ft 11:00PM Nov 02, 2014Forecast: 12.93 ft 12:00AM Nov 03, 2014SNAW1(plotting HGIRG) Graph Created (1:18AM Oct 31, 2014)ObservedForecast (issued 2:25PM Oct 30)Latest observed value: 15.35 ft at 12:00 AM PDT 31-Oct-2014. Flood Stage is 25 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Gauge reading affected by ocean tides.

Reliability of the Forecast: Forecast data shown here are guidance values only. Please refer to your local NWS office.

NOTE: Forecasts for the Snohomish River at Snohomish are issued as needed during times of high water, but are not routinely available.

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Upstream Gauge - near Monroe Upstream Gauge
Flood Categories (in feet)
Major Flood Stage:29
Moderate Flood Stage:27
Flood Stage:25
Action Stage:0

Historical Crests
(1) 33.50 ft on 11/25/1990
(2) 33.49 ft on 11/08/2006 (P)
(3) 33.47 ft on 01/09/2009
(4) 33.16 ft on 12/04/1975
(5) 33.11 ft on 11/29/1995
Show More Historical Crests

(P): Preliminary values subject to further review.

Low Water Records
Zoom Level:15
KML Image
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
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: 47.913056° N, Longitude: 122.108889° 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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Page last modified: 27-Aug-2014 7:09 PM
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