SRUS46 KPQR 210630

RVMPQR



Hydrologic Statement 

National Weather Service Portland OR

1130 PM PDT Mon Apr 20 2026



WAZ040-201130-

1130 PM PDT Mon Apr 20 2026



Current status of reservoirs on the Lewis River, updated 1130 PM

Mon, Apr 20 2026.



RESERVOIR        CURRENT POOL ELEV      FULL POOL

Swift Reservoir         994              1000 FT

Yale Lake               477               490 FT

Lake Merwin             237               240 FT



As of 1130 PM PDT, Mon Apr 20, 2026, the remaining aggregate

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

22 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



$$