MF SNOQUALMIE − NEAR TANNER (TANW1)
   State:  Washington
   County:  King
   Latitude:  47 29' 0" North
   Longitude:  121 39' 0" West
   Elevation:  780 ft

   Supporting NWS Forecast Office: WFO Seattle

   
Click for NWS Official River Forecasts for TANW1
   

Daily Historical Statistics for October 06, 2026
Mean Stage: 2.26 ft  Mean Flow: 507 cfs
Max Stage: 6.12 ft  Max Flow: 3790 cfs (1982)
Min Stage:  0.68 ft   Min Flow: 99 cfs (2023)

Statistics based on water years: 1962-2025
* 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 TANW1

Data Used In Plot   "label   USGS Observations