Miscellaneous River Product
Issued by NWS Portland, OR

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475
SRUS46 KPQR 301030
RVMPQR

Hydrologic Statement
National Weather Service Portland OR
330 AM PDT Thu Jul 30 2026

WAZ040-30330-
330 AM PDT Thu Jul 30 2026

Current status of reservoirs on the Lewis River, updated 330 AM
Thu, Jul 30 2026.

RESERVOIR        CURRENT POOL ELEV      FULL POOL
Swift Reservoir         974              1000 FT
Yale Lake               474               490 FT
Lake Merwin             234               240 FT

As of 330 AM PDT, Thu Jul 30, 2026, the remaining aggregate
storage for refill at Merwin, Yale, and Swift reservoirs is
48 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

$$