Miscellaneous River Product
Issued by NWS Portland, OR

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622
SRUS46 KPQR 111230
RVMPQR

Hydrologic Statement
National Weather Service Portland OR
530 AM PDT Fri Sep 11 2026

WAZ040-11530-
530 AM PDT Fri Sep 11 2026

Current status of reservoirs on the Lewis River, updated 530 AM
Fri, Sep 11 2026.

RESERVOIR        CURRENT POOL ELEV      FULL POOL
Swift Reservoir         966              1000 FT
Yale Lake               473               490 FT
Lake Merwin             232               240 FT

As of 530 AM PDT, Fri Sep 11, 2026, the remaining aggregate
storage for refill at Merwin, Yale, and Swift reservoirs is
59 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

$$