524
SRUS46 KPQR 110130
RVMPQR
HYDROLOGIC STATEMENT
NATIONAL WEATHER SERVICE PORTLAND OR
630 PM PDT SUN MAY 10 2026
WAZ040-10630-
630 PM PDT SUN MAY 10 2026
CURRENT STATUS OF RESERVOIRS ON THE LEWIS RIVER, UPDATED 630 PM
SUN, MAY 10 2026.
RESERVOIR CURRENT POOL ELEV FULL POOL
SWIFT RESERVOIR 998 1000 FT
YALE LAKE 478 490 FT
LAKE MERWIN 236 240 FT
AS OF 630 PM PDT, SUN MAY 10, 2026, THE REMAINING AGGREGATE
STORAGE FOR REFILL AT MERWIN, YALE, AND SWIFT RESERVOIRS IS
18 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
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