SNOHOMISH − NEAR MONROE (MROW1)
   State:  Washington
   County:  Snohomish
   Latitude:  47 49' 49" North
   Longitude:  122 2' 54" West
   Elevation:  13 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for MROW1
   


   Action Stage:  
10 ft
   Flood Stage:  
15 ft
   Moderate Flood Stage:  
16 ft
   Major Flood Stage:  
17 ft
Daily Historical Statistics for February 16, 2026
Mean Stage: 4.75 ft  Mean Flow: 12200 cfs
Max Stage: 16.91 ft  Max Flow: 67800 cfs (1982)
Min Stage:  1.56 ft   Min Flow: 3160 cfs (2025)

Statistics based on water years: 1963-2025
* statistics estimated based on current rating

Record Stage: 
25.3 ft
Record Flow: 
150000 cfs
Date of Record: 
November 25, 1990

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for MROW1

Data Used In Plot   "label   USGS Observations