SRUS46 KPQR 212130

RVMPQR



Hydrologic Statement 

National Weather Service Portland OR

230 PM PDT Sat Mar 21 2026



WAZ040-21230-

230 PM PDT Sat Mar 21 2026



Current status of reservoirs on the Lewis River, updated 230 PM

Sat, Mar 21 2026.



RESERVOIR        CURRENT POOL ELEV      FULL POOL

Swift Reservoir         993              1000 FT

Yale Lake               474               490 FT

Lake Merwin             231               240 FT



As of 230 PM PDT, Sat Mar 21, 2026, the remaining aggregate

storage for refill at Merwin, Yale, and Swift reservoirs is

32 feet.

 

This product is updated hourly on the NWS Portland webpage at:

www.wrh.noaa.gov/total_forecast/getprod.php?wfo=pqr&sid=PQR&pil=RVM

or 

http://go.usa.gov/x97zc

 

Additional hydrologic information can be viewed at:

water.weather.gov/ahps2/index.php?wfo=pqr



$$