SRUS46 KPQR 211630

RVMPQR



Hydrologic Statement 

National Weather Service Portland OR

930 AM PDT Sat Mar 21 2026



WAZ040-21930-

930 AM PDT Sat Mar 21 2026



Current status of reservoirs on the Lewis River, updated 930 AM

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 930 AM 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



$$