SOUTH PRAIRIE − AT SOUTH PRAIRIE (SPEW1)
   State:  Washington
   County:  Pierce
   Latitude:  47 7' 59" North
   Longitude:  122 4' 59" West
   Elevation:  430 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for SPEW1
   


   Action Stage:  
28.88 ft
   Flood Stage:  
29.64 ft
   Moderate Flood Stage:  
30.5 ft
   Major Flood Stage:  
31.63 ft
Daily Historical Statistics for October 23, 2026
Mean Stage: 25.43 ft  Mean Flow: 177 cfs
Max Stage: 26.52 ft  Max Flow: 715 cfs (1960)
Min Stage:  24.42 ft   Min Flow: 26 cfs (1988)

Statistics based on water years: 1950-2024
* statistics estimated based on current rating

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

Hydrograph plot for SPEW1

Data Used In Plot   "label   USGS Observations