Miscellaneous River Product
Issued by NWS Portland, OR

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
822
SRUS46 KPQR 171030
RVMPQR

Hydrologic Statement
National Weather Service Portland OR
330 AM PDT Mon Aug 17 2026

WAZ040-17330-
330 AM PDT Mon Aug 17 2026

Current status of reservoirs on the Lewis River, updated 330 AM
Mon, Aug 17 2026.

RESERVOIR        CURRENT POOL ELEV      FULL POOL
Swift Reservoir         971              1000 FT
Yale Lake               472               490 FT
Lake Merwin             234               240 FT

As of 330 AM PDT, Mon Aug 17, 2026, the remaining aggregate
storage for refill at Merwin, Yale, and Swift reservoirs is
53 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

$$