SNOQUALMIE − NEAR SNOQUALMIE (SQUW1)
   State:  Washington
   County:  King
   Latitude:  47 32' 43" North
   Longitude:  121 50' 28" West
   Elevation:  120 ft

   Supporting NWS Forecast Office: WFO Seattle
   Click for NWS Official River Forecasts for SQUW1
   

   Action Flow:  15000 cfs (11.89 ft)
   Flood Flow:  20000 cfs (13.54 ft)
   Moderate Flood Flow:  31000 cfs (16.21 ft)
   Major Flood Flow:  41000 cfs (17.42 ft)
Daily Historical Statistics for May 15, 2026
Mean Stage: 6.71 ft  Mean Flow: 4110 cfs
Max Stage: 10.69 ft  Max Flow: 11900 cfs (2011)
Min Stage:  4.35 ft   Min Flow: 1420 cfs (2015)

Statistics based on water years: 1959-2024
* statistics estimated based on current rating

Record Flow: 78800 cfs
Date of Record: November 24, 1990

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

Hydrograph plot for SQUW1

Data Used In Plot   "label   USGS Observations