Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 
Hydrograph River at a Glance Download
Snohomish River at Snohomish Stage (ft)Flow (kcfs)Observed: 15.23 ft at 3:00AM Apr 01, 2020Observed: 15.12 ft at 3:15AM Apr 01, 2020Observed: 15.01 ft at 3:30AM Apr 01, 2020Observed: 14.88 ft at 3:45AM Apr 01, 2020Observed: 14.74 ft at 4:00AM Apr 01, 2020Observed: 14.62 ft at 4:15AM Apr 01, 2020Observed: 14.48 ft at 4:30AM Apr 01, 2020Observed: 14.34 ft at 4:45AM Apr 01, 2020Observed: 14.2 ft at 5:00AM Apr 01, 2020Observed: 14.06 ft at 5:15AM Apr 01, 2020Observed: 13.95 ft at 5:30AM Apr 01, 2020Observed: 13.84 ft at 5:45AM Apr 01, 2020Observed: 13.72 ft at 6:00AM Apr 01, 2020Observed: 13.62 ft at 6:15AM Apr 01, 2020Observed: 13.53 ft at 6:30AM Apr 01, 2020Observed: 13.46 ft at 6:45AM Apr 01, 2020Observed: 13.42 ft at 7:00AM Apr 01, 2020Observed: 13.39 ft at 7:15AM Apr 01, 2020Observed: 13.39 ft at 7:30AM Apr 01, 2020Observed: 13.39 ft at 7:45AM Apr 01, 2020Observed: 13.43 ft at 8:00AM Apr 01, 2020Observed: 13.48 ft at 8:15AM Apr 01, 2020Observed: 13.55 ft at 8:30AM Apr 01, 2020Observed: 13.62 ft at 8:45AM Apr 01, 2020Observed: 13.7 ft at 9:00AM Apr 01, 2020Observed: 13.78 ft at 9:15AM Apr 01, 2020Observed: 13.85 ft at 9:30AM Apr 01, 2020Observed: 13.92 ft at 9:45AM Apr 01, 2020Observed: 13.99 ft at 10:00AM Apr 01, 2020Observed: 14.05 ft at 10:15AM Apr 01, 2020Observed: 14.08 ft at 10:30AM Apr 01, 2020Observed: 14.12 ft at 10:45AM Apr 01, 2020Observed: 14.13 ft at 11:00AM Apr 01, 2020Observed: 14.12 ft at 11:15AM Apr 01, 2020Observed: 14.09 ft at 11:30AM Apr 01, 2020Observed: 14.04 ft at 11:45AM Apr 01, 2020Observed: 14 ft at 12:00PM Apr 01, 2020Observed: 13.91 ft at 12:15PM Apr 01, 2020Observed: 13.79 ft at 12:30PM Apr 01, 2020Observed: 13.67 ft at 12:45PM Apr 01, 2020Observed: 13.53 ft at 1:00PM Apr 01, 2020Observed: 13.38 ft at 1:15PM Apr 01, 2020Observed: 13.21 ft at 1:30PM Apr 01, 2020Observed: 13.02 ft at 1:45PM Apr 01, 2020Observed: 12.83 ft at 2:00PM Apr 01, 2020Observed: 12.63 ft at 2:15PM Apr 01, 2020Observed: 12.44 ft at 2:30PM Apr 01, 2020Observed: 12.25 ft at 2:45PM Apr 01, 2020Observed: 12.05 ft at 3:00PM Apr 01, 2020Observed: 11.86 ft at 3:15PM Apr 01, 2020Observed: 11.67 ft at 3:30PM Apr 01, 2020Observed: 11.49 ft at 3:45PM Apr 01, 2020Observed: 11.32 ft at 4:00PM Apr 01, 2020Observed: 11.14 ft at 4:15PM Apr 01, 2020Observed: 10.99 ft at 4:30PM Apr 01, 2020Observed: 10.84 ft at 4:45PM Apr 01, 2020Observed: 10.7 ft at 5:00PM Apr 01, 2020Observed: 10.57 ft at 5:15PM Apr 01, 2020Observed: 10.46 ft at 5:30PM Apr 01, 2020Observed: 10.35 ft at 5:45PM Apr 01, 2020Observed: 10.26 ft at 6:00PM Apr 01, 2020Observed: 10.18 ft at 6:15PM Apr 01, 2020Observed: 10.09 ft at 6:30PM Apr 01, 2020Observed: 10.02 ft at 6:45PM Apr 01, 2020Observed: 9.95 ft at 7:00PM Apr 01, 2020Observed: 9.9 ft at 7:15PM Apr 01, 2020Observed: 9.86 ft at 7:30PM Apr 01, 2020Observed: 9.83 ft at 7:45PM Apr 01, 2020Observed: 9.8 ft at 8:00PM Apr 01, 2020Observed: 9.81 ft at 8:15PM Apr 01, 2020Observed: 9.83 ft at 8:30PM Apr 01, 2020Observed: 9.89 ft at 8:45PM Apr 01, 2020Observed: 9.98 ft at 9:00PM Apr 01, 2020Observed: 10.11 ft at 9:15PM Apr 01, 2020Observed: 10.33 ft at 9:30PM Apr 01, 2020Observed: 10.6 ft at 9:45PM Apr 01, 2020Observed: 10.96 ft at 10:00PM Apr 01, 2020Observed: 11.38 ft at 10:15PM Apr 01, 2020Observed: 11.86 ft at 10:30PM Apr 01, 2020Observed: 12.36 ft at 10:45PM Apr 01, 2020Observed: 12.83 ft at 11:00PM Apr 01, 2020Observed: 13.27 ft at 11:15PM Apr 01, 2020Observed: 13.65 ft at 11:30PM Apr 01, 2020Observed: 13.97 ft at 11:45PM Apr 01, 2020Observed: 14.27 ft at 12:00AM Apr 02, 2020Observed: 14.54 ft at 12:15AM Apr 02, 2020Observed: 14.78 ft at 12:30AM Apr 02, 2020Observed: 15 ft at 12:45AM Apr 02, 2020Observed: 15.19 ft at 1:00AM Apr 02, 2020Observed: 15.37 ft at 1:15AM Apr 02, 2020Observed: 15.51 ft at 1:30AM Apr 02, 2020Observed: 15.61 ft at 1:45AM Apr 02, 2020Observed: 15.68 ft at 2:00AM Apr 02, 2020Observed: 15.72 ft at 2:15AM Apr 02, 2020Observed: 15.73 ft at 2:30AM Apr 02, 2020Observed: 15.71 ft at 2:45AM Apr 02, 2020Observed: 15.66 ft at 3:00AM Apr 02, 2020Observed: 15.64 ft at 3:15AM Apr 02, 2020Observed: 15.51 ft at 3:30AM Apr 02, 2020Observed: 15.44 ft at 3:45AM Apr 02, 2020Observed: 15.33 ft at 4:00AM Apr 02, 2020Observed: 15.22 ft at 4:15AM Apr 02, 2020Observed: 15.09 ft at 4:30AM Apr 02, 2020Observed: 14.98 ft at 4:45AM Apr 02, 2020Observed: 14.81 ft at 5:00AM Apr 02, 2020Observed: 14.68 ft at 5:15AM Apr 02, 2020Observed: 14.5 ft at 5:30AM Apr 02, 2020Observed: 14.33 ft at 5:45AM Apr 02, 2020Observed: 14.16 ft at 6:00AM Apr 02, 2020Observed: 13.99 ft at 6:15AM Apr 02, 2020Observed: 13.81 ft at 6:30AM Apr 02, 2020Observed: 13.66 ft at 6:45AM Apr 02, 2020Observed: 13.48 ft at 7:00AM Apr 02, 2020Observed: 13.32 ft at 7:15AM Apr 02, 2020Observed: 13.17 ft at 7:30AM Apr 02, 2020Observed: 13.05 ft at 7:45AM Apr 02, 2020Observed: 12.94 ft at 8:00AM Apr 02, 2020Observed: 12.85 ft at 8:15AM Apr 02, 2020Observed: 12.77 ft at 8:30AM Apr 02, 2020Observed: 12.72 ft at 8:45AM Apr 02, 2020Observed: 12.69 ft at 9:00AM Apr 02, 2020Observed: 12.71 ft at 9:15AM Apr 02, 2020Observed: 12.73 ft at 9:30AM Apr 02, 2020Observed: 12.76 ft at 9:45AM Apr 02, 2020Observed: 12.82 ft at 10:00AM Apr 02, 2020Observed: 12.89 ft at 10:15AM Apr 02, 2020Observed: 12.95 ft at 10:30AM Apr 02, 2020Observed: 13.02 ft at 10:45AM Apr 02, 2020Observed: 13.06 ft at 11:00AM Apr 02, 2020Observed: 13.12 ft at 11:15AM Apr 02, 2020Observed: 13.17 ft at 11:30AM Apr 02, 2020Observed: 13.22 ft at 11:45AM Apr 02, 2020Observed: 13.25 ft at 12:00PM Apr 02, 2020Observed: 13.27 ft at 12:15PM Apr 02, 2020Observed: 13.28 ft at 12:30PM Apr 02, 2020Observed: 13.27 ft at 12:45PM Apr 02, 2020Observed: 13.23 ft at 1:00PM Apr 02, 2020Observed: 13.18 ft at 1:15PM Apr 02, 2020Observed: 13.11 ft at 1:30PM Apr 02, 2020Observed: 13.02 ft at 1:45PM Apr 02, 2020Observed: 12.92 ft at 2:00PM Apr 02, 2020Observed: 12.79 ft at 2:15PM Apr 02, 2020Observed: 12.64 ft at 2:30PM Apr 02, 2020Observed: 12.46 ft at 2:45PM Apr 02, 2020Observed: 12.28 ft at 3:00PM Apr 02, 2020Observed: 11.3 ft at 4:15PM Apr 02, 2020Observed: 11.09 ft at 4:30PM Apr 02, 2020Observed: 10.9 ft at 4:45PM Apr 02, 2020Observed: 10.71 ft at 5:00PM Apr 02, 2020Observed: 10.53 ft at 5:15PM Apr 02, 2020Observed: 10.35 ft at 5:30PM Apr 02, 2020Observed: 10.2 ft at 5:45PM Apr 02, 2020Observed: 10.05 ft at 6:00PM Apr 02, 2020Observed: 9.48 ft at 7:15PM Apr 02, 2020Observed: 9.39 ft at 7:30PM Apr 02, 2020Observed: 9.32 ft at 7:45PM Apr 02, 2020Observed: 9.25 ft at 8:00PM Apr 02, 2020Observed: 9.2 ft at 8:15PM Apr 02, 2020Observed: 9.15 ft at 8:30PM Apr 02, 2020Observed: 9.11 ft at 8:45PM Apr 02, 2020Observed: 9.08 ft at 9:00PM Apr 02, 2020Observed: 9.07 ft at 9:15PM Apr 02, 2020Observed: 9.09 ft at 9:30PM Apr 02, 2020Observed: 9.13 ft at 9:45PM Apr 02, 2020Observed: 9.21 ft at 10:00PM Apr 02, 2020Observed: 9.35 ft at 10:15PM Apr 02, 2020Observed: 9.57 ft at 10:30PM Apr 02, 2020Observed: 9.85 ft at 10:45PM Apr 02, 2020Observed: 10.23 ft at 11:00PM Apr 02, 2020Observed: 10.71 ft at 11:15PM Apr 02, 2020Observed: 11.26 ft at 11:30PM Apr 02, 2020Observed: 11.83 ft at 11:45PM Apr 02, 2020Observed: 12.38 ft at 12:00AM Apr 03, 2020Observed: 12.91 ft at 12:15AM Apr 03, 2020Observed: 13.39 ft at 12:30AM Apr 03, 2020Observed: 13.8 ft at 12:45AM Apr 03, 2020Observed: 14.14 ft at 1:00AM Apr 03, 2020Observed: 14.45 ft at 1:15AM Apr 03, 2020Observed: 14.7 ft at 1:30AM Apr 03, 2020Observed: 14.94 ft at 1:45AM Apr 03, 2020Observed: 15.16 ft at 2:00AM Apr 03, 2020Observed: 15.34 ft at 2:15AM Apr 03, 2020Observed: 15.51 ft at 2:30AM Apr 03, 2020Observed: 15.62 ft at 2:45AM Apr 03, 2020Observed: 15.71 ft at 3:00AM Apr 03, 2020Observed: 15.76 ft at 3:15AM Apr 03, 2020Highest Observation: 15.77 ft at 3:30AM Apr 03, 2020Observed: 15.74 ft at 3:45AM Apr 03, 2020Observed: 15.67 ft at 4:00AM Apr 03, 2020Observed: 15.6 ft at 4:15AM Apr 03, 2020Observed: 15.49 ft at 4:30AM Apr 03, 2020Observed: 15.37 ft at 4:45AM Apr 03, 2020Observed: 15.23 ft at 5:00AM Apr 03, 2020Observed: 15.07 ft at 5:15AM Apr 03, 2020Observed: 14.91 ft at 5:30AM Apr 03, 2020Observed: 14.74 ft at 5:45AM Apr 03, 2020Observed: 14.57 ft at 6:00AM Apr 03, 2020Observed: 14.39 ft at 6:15AM Apr 03, 2020Observed: 14.19 ft at 6:30AM Apr 03, 2020Observed: 13.98 ft at 6:45AM Apr 03, 2020Observed: 13.78 ft at 7:00AM Apr 03, 2020Observed: 13.59 ft at 7:15AM Apr 03, 2020Observed: 13.39 ft at 7:30AM Apr 03, 2020Observed: 13.18 ft at 7:45AM Apr 03, 2020Observed: 12.98 ft at 8:00AM Apr 03, 2020Observed: 12.79 ft at 8:15AM Apr 03, 2020Observed: 12.61 ft at 8:30AM Apr 03, 2020Observed: 12.44 ft at 8:45AM Apr 03, 2020Observed: 12.3 ft at 9:00AM Apr 03, 2020Observed: 12.19 ft at 9:15AM Apr 03, 2020Observed: 12.11 ft at 9:30AM Apr 03, 2020Observed: 12.07 ft at 9:45AM Apr 03, 2020Observed: 12.06 ft at 10:00AM Apr 03, 2020Observed: 12.09 ft at 10:15AM Apr 03, 2020Observed: 12.15 ft at 10:30AM Apr 03, 2020Observed: 12.21 ft at 10:45AM Apr 03, 2020Observed: 12.3 ft at 11:00AM Apr 03, 2020Observed: 12.39 ft at 11:15AM Apr 03, 2020Observed: 12.5 ft at 11:30AM Apr 03, 2020Observed: 12.63 ft at 11:45AM Apr 03, 2020Observed: 12.74 ft at 12:00PM Apr 03, 2020Observed: 12.85 ft at 12:15PM Apr 03, 2020Observed: 12.95 ft at 12:30PM Apr 03, 2020Observed: 13.06 ft at 12:45PM Apr 03, 2020Observed: 13.15 ft at 1:00PM Apr 03, 2020Observed: 13.23 ft at 1:15PM Apr 03, 2020Observed: 13.28 ft at 1:30PM Apr 03, 2020Observed: 13.33 ft at 1:45PM Apr 03, 2020Observed: 13.35 ft at 2:00PM Apr 03, 2020Observed: 13.34 ft at 2:15PM Apr 03, 2020Observed: 13.32 ft at 2:30PM Apr 03, 2020Observed: 13.25 ft at 2:45PM Apr 03, 2020Observed: 13.16 ft at 3:00PM Apr 03, 2020Observed: 13.05 ft at 3:15PM Apr 03, 2020Observed: 12.89 ft at 3:30PM Apr 03, 2020Observed: 12.74 ft at 3:45PM Apr 03, 2020Observed: 12.55 ft at 4:00PM Apr 03, 2020Observed: 12.34 ft at 4:15PM Apr 03, 2020Observed: 12.12 ft at 4:30PM Apr 03, 2020Observed: 11.9 ft at 4:45PM Apr 03, 2020Observed: 11.67 ft at 5:00PM Apr 03, 2020Observed: 11.43 ft at 5:15PM Apr 03, 2020Observed: 11.2 ft at 5:30PM Apr 03, 2020Observed: 10.97 ft at 5:45PM Apr 03, 2020Observed: 10.75 ft at 6:00PM Apr 03, 2020Observed: 10.53 ft at 6:15PM Apr 03, 2020Observed: 10.33 ft at 6:30PM Apr 03, 2020Observed: 10.13 ft at 6:45PM Apr 03, 2020Observed: 9.95 ft at 7:00PM Apr 03, 2020Observed: 9.77 ft at 7:15PM Apr 03, 2020Observed: 9.6 ft at 7:30PM Apr 03, 2020Observed: 9.48 ft at 7:45PM Apr 03, 2020Observed: 9.33 ft at 8:00PM Apr 03, 2020Observed: 9.21 ft at 8:15PM Apr 03, 2020Observed: 9.1 ft at 8:30PM Apr 03, 2020Observed: 8.99 ft at 8:45PM Apr 03, 2020Observed: 8.91 ft at 9:00PM Apr 03, 2020Observed: 8.85 ft at 9:15PM Apr 03, 2020Observed: 8.78 ft at 9:30PM Apr 03, 2020Observed: 8.73 ft at 9:45PM Apr 03, 2020Observed: 8.7 ft at 10:00PM Apr 03, 2020Observed: 8.68 ft at 10:15PM Apr 03, 2020Observed: 8.67 ft at 10:30PM Apr 03, 2020Observed: 8.71 ft at 10:45PM Apr 03, 2020Observed: 8.82 ft at 11:00PM Apr 03, 2020Observed: 8.99 ft at 11:15PM Apr 03, 2020Observed: 9.24 ft at 11:30PM Apr 03, 2020Observed: 9.61 ft at 11:45PM Apr 03, 2020Observed: 10.09 ft at 12:00AM Apr 04, 2020Observed: 10.65 ft at 12:15AM Apr 04, 2020Observed: 11.27 ft at 12:30AM Apr 04, 2020Observed: 11.92 ft at 12:45AM Apr 04, 2020Observed: 12.55 ft at 1:00AM Apr 04, 2020Observed: 13.15 ft at 1:15AM Apr 04, 2020Observed: 13.7 ft at 1:30AM Apr 04, 2020Observed: 14.18 ft at 1:45AM Apr 04, 2020Observed: 14.59 ft at 2:00AM Apr 04, 2020Forecast: 15.59 ft 3:00AM Apr 04, 2020Forecast: 15.82 ft 4:00AM Apr 04, 2020Forecast: 15.36 ft 5:00AM Apr 04, 2020Forecast: 14.54 ft 6:00AM Apr 04, 2020Forecast: 13.56 ft 7:00AM Apr 04, 2020Forecast: 12.31 ft 8:00AM Apr 04, 2020Forecast: 11.44 ft 9:00AM Apr 04, 2020Forecast: 10.98 ft 10:00AM Apr 04, 2020Forecast: 11.06 ft 11:00AM Apr 04, 2020Forecast: 11.68 ft 12:00PM Apr 04, 2020Forecast: 12.82 ft 1:00PM Apr 04, 2020Forecast: 13.69 ft 2:00PM Apr 04, 2020Forecast: 13.88 ft 3:00PM Apr 04, 2020Forecast: 13.52 ft 4:00PM Apr 04, 2020Forecast: 12.28 ft 5:00PM Apr 04, 2020Forecast: 10.95 ft 6:00PM Apr 04, 2020Forecast: 9.91 ft 7:00PM Apr 04, 2020Forecast: 9.68 ft 8:00PM Apr 04, 2020Forecast: 8.99 ft 9:00PM Apr 04, 2020Forecast: 8.11 ft 10:00PM Apr 04, 2020Forecast: 7.63 ft 11:00PM Apr 04, 2020Forecast: 7.9 ft 12:00AM Apr 05, 2020Forecast: 9.42 ft 1:00AM Apr 05, 2020Forecast: 11.26 ft 2:00AM Apr 05, 2020Forecast: 14.55 ft 3:00AM Apr 05, 2020Forecast: 15.95 ft 4:00AM Apr 05, 2020Forecast: 16.15 ft 5:00AM Apr 05, 2020Forecast: 15.5 ft 6:00AM Apr 05, 2020Forecast: 14.37 ft 7:00AM Apr 05, 2020Forecast: 12.82 ft 8:00AM Apr 05, 2020Forecast: 11.26 ft 9:00AM Apr 05, 2020Forecast: 10.17 ft 10:00AM Apr 05, 2020Forecast: 9.71 ft 11:00AM Apr 05, 2020Forecast: 9.7 ft 12:00PM Apr 05, 2020Forecast: 10.42 ft 1:00PM Apr 05, 2020Forecast: 12.48 ft 2:00PM Apr 05, 2020Forecast: 14.01 ft 3:00PM Apr 05, 2020Forecast: 14.34 ft 4:00PM Apr 05, 2020Forecast: 13.83 ft 5:00PM Apr 05, 2020Forecast: 12.54 ft 6:00PM Apr 05, 2020Forecast: 10.95 ft 7:00PM Apr 05, 2020Forecast: 9.68 ft 8:00PM Apr 05, 2020Forecast: 9.43 ft 9:00PM Apr 05, 2020Forecast: 8.84 ft 10:00PM Apr 05, 2020Forecast: 7.88 ft 11:00PM Apr 05, 2020Forecast: 7.37 ft 12:00AM Apr 06, 2020Forecast: 7.67 ft 1:00AM Apr 06, 2020Forecast: 9.28 ft 2:00AM Apr 06, 2020Forecast: 11.27 ft 3:00AM Apr 06, 2020Forecast: 14.72 ft 4:00AM Apr 06, 2020Forecast: 16.18 ft 5:00AM Apr 06, 2020Forecast: 16.33 ft 6:00AM Apr 06, 2020Forecast: 15.49 ft 7:00AM Apr 06, 2020Forecast: 14.13 ft 8:00AM Apr 06, 2020Forecast: 12.17 ft 9:00AM Apr 06, 2020Forecast: 10.45 ft 10:00AM Apr 06, 2020Forecast: 9.55 ft 11:00AM Apr 06, 2020Forecast: 9.39 ft 12:00PM Apr 06, 2020Forecast: 9.36 ft 1:00PM Apr 06, 2020Forecast: 9.57 ft 2:00PM Apr 06, 2020Forecast: 12.31 ft 3:00PM Apr 06, 2020Forecast: 14.5 ft 4:00PM Apr 06, 2020Forecast: 14.93 ft 5:00PM Apr 06, 2020Forecast: 14.36 ft 6:00PM Apr 06, 2020Forecast: 13.18 ft 7:00PM Apr 06, 2020Forecast: 11.32 ft 8:00PM Apr 06, 2020Forecast: 9.88 ft 9:00PM Apr 06, 2020Forecast: 9.41 ft 10:00PM Apr 06, 2020Forecast: 9.02 ft 11:00PM Apr 06, 2020Forecast: 8.16 ft 12:00AM Apr 07, 2020Forecast: 7.69 ft 1:00AM Apr 07, 2020Forecast: 8.28 ft 2:00AM Apr 07, 2020Forecast: 9.68 ft 3:00AM Apr 07, 2020Forecast: 14.4 ft 4:00AM Apr 07, 2020Forecast: 16.42 ft 5:00AM Apr 07, 2020Forecast: 16.62 ft 6:00AM Apr 07, 2020Forecast: 15.6 ft 7:00AM Apr 07, 2020Forecast: 13.99 ft 8:00AM Apr 07, 2020Forecast: 11.68 ft 9:00AM Apr 07, 2020Forecast: 9.89 ft 10:00AM Apr 07, 2020Forecast: 9.35 ft 11:00AM Apr 07, 2020Forecast: 8.95 ft 12:00PM Apr 07, 2020Forecast: 8.5 ft 1:00PM Apr 07, 2020Forecast: 9.05 ft 2:00PM Apr 07, 2020Forecast: 9.83 ft 3:00PM Apr 07, 2020Forecast: 13.5 ft 4:00PM Apr 07, 2020Forecast: 15.13 ft 5:00PM Apr 07, 2020Forecast: 15.41 ft 6:00PM Apr 07, 2020Forecast: 14.64 ft 7:00PM Apr 07, 2020Forecast: 13.17 ft 8:00PM Apr 07, 2020Forecast: 11.05 ft 9:00PM Apr 07, 2020Forecast: 9.58 ft 10:00PM Apr 07, 2020Forecast: 9.32 ft 11:00PM Apr 07, 2020Forecast: 8.84 ft 12:00AM Apr 08, 2020Forecast: 8.33 ft 1:00AM Apr 08, 2020Forecast: 8.86 ft 2:00AM Apr 08, 2020Forecast: 9.46 ft 3:00AM Apr 08, 2020Forecast: 12.63 ft 4:00AM Apr 08, 2020Forecast: 15.32 ft 5:00AM Apr 08, 2020Highest Forecast: 16.66 ft 6:00AM Apr 08, 2020Forecast: 16.64 ft 7:00AM Apr 08, 2020Forecast: 15.5 ft 8:00AM Apr 08, 2020Forecast: 13.72 ft 9:00AM Apr 08, 2020Forecast: 11.15 ft 10:00AM Apr 08, 2020Forecast: 9.51 ft 11:00AM Apr 08, 2020Forecast: 9.17 ft 12:00PM Apr 08, 2020Forecast: 8.05 ft 1:00PM Apr 08, 2020Forecast: 7.32 ft 2:00PM Apr 08, 2020Forecast: 7.71 ft 3:00PM Apr 08, 2020Forecast: 9.37 ft 4:00PM Apr 08, 2020Forecast: 13.45 ft 5:00PM Apr 08, 2020Forecast: 15.46 ft 6:00PM Apr 08, 2020Forecast: 15.81 ft 7:00PM Apr 08, 2020Forecast: 15.02 ft 8:00PM Apr 08, 2020Forecast: 13.66 ft 9:00PM Apr 08, 2020Forecast: 11.55 ft 10:00PM Apr 08, 2020Forecast: 9.99 ft 11:00PM Apr 08, 2020Forecast: 9.38 ft 12:00AM Apr 09, 2020Forecast: 9.22 ft 1:00AM Apr 09, 2020Forecast: 9.04 ft 2:00AM Apr 09, 2020USGS--Water Resources of the United StatesSNAW1(plotting HGIRG) Graph Created (2:49AM Apr 4, 2020)ObservedForecast (issued 3:37PM Apr 3)Latest observed value: 14.59 ft at 2:00 AM PDT 4-Apr-2020. Flood Stage is 25 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: Not Available
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.

Return to Area Map
Upstream Gauge - near Monroe Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 29
Moderate Flood Stage: 27
Flood Stage: 25
Action Stage: 0
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) 28.46 ft on 02/08/2020 (P)
(2) 29.94 ft on 02/02/2020 (P)
(3) 25.90 ft on 01/08/2020 (P)
(4) 26.75 ft on 12/21/2019 (P)
(5) 25.91 ft on 10/22/2019 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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: 47.910556° N, Longitude: 122.097778° 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.
Resources Collapse
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
Ask Questions/Webmaster
Page last modified: 1-Mar-2019 12:32 AM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities